The experiment is on the DC motor modelling along with DC motor validation. The system of DC analysed in this experiment by the connection of hardware and software. The bump test method is done which depends on responses of the stable system.
- Electrical drives enable control of motors in all aspects including starting, speed control, and braking. Control is necessary as these operations involve large transient changes in voltage, current, etc. that could damage the motor.
- Electrical drives operate in three modes: steady-state, acceleration, and deceleration. Closed-loop control is used for protection, fast response, and accuracy. Common closed-loop controls include current limiting, torque control, and speed control using feedback loops. Speed control is widely used and can involve inner current and outer speed loops.
This document contains 5 numerical problems related to analyzing the operation of three-phase induction machines. Problem 1 involves calculating various speeds, frequencies, and voltages given machine specifications operating at rated slip. Problem 2 involves calculating power values given a 3-phase induction motor's rated power and windage/friction losses. Problem 3 involves calculating starting and full-load operating values like current, slip, and efficiency given motor parameters. Problem 4 involves determining the resistance value needed in the rotor circuit to reduce the motor speed from operating at a given speed and load to a lower speed. Problem 5 involves calculating torque values from the ratio of starting to full-load rotor current.
This document proposes generating power from speed breakers. When vehicles pass over the dome-shaped speed breakers, the kinetic energy is captured through a rack and pinion mechanism that converts the reciprocating motion into rotational motion. This rotation powers generators to produce electricity, with the voltage output varying based on vehicle speed and load. The system aims to harness wasted kinetic energy for low-cost power generation without obstructing traffic flow. Potential applications include street lighting and charging batteries at locations with high vehicle volume like parking lots. While initial construction costs are low, ongoing maintenance is still required.
The performance of a hydraulic turbine is influenced by the characteristics of the water column feeding the turbine:
water inertia
water compressibility
pipe wall elasticity in the penstock
The effect of water inertia is to cause changes in turbine flow to lag behind changes in turbine gate opening
The effect of elasticity is to cause traveling waves of pressure and flow in the pipe - a phenomenon referred to as water hammer
typically, the speed of propagation of such waves is about 1200 meters/sec
traveling wave model required only if penstock is very long
This document discusses the theory and experimental procedures for determining the load characteristics of DC shunt, series, and compound motors. The experiments involve constructing circuits for each motor type and measuring speed, current, torque, power, and efficiency at increasing loads. Load characteristics such as speed regulation, starting torque, and efficiency are then determined and compared between motor types from the experimental results.
DC motor and open loop speed control.
Closed loop speed control of DC drives.
Closed loop speed control with inner loop current control
Closed loop field control
Closed loop armature control.
- Electrical drives enable control of motors in all aspects including starting, speed control, and braking. Control is necessary as these operations involve large transient changes in voltage, current, etc. that could damage the motor.
- Electrical drives operate in three modes: steady-state, acceleration, and deceleration. Closed-loop control is used for protection, fast response, and accuracy. Common closed-loop controls include current limiting, torque control, and speed control using feedback loops. Speed control is widely used and can involve inner current and outer speed loops.
This document contains 5 numerical problems related to analyzing the operation of three-phase induction machines. Problem 1 involves calculating various speeds, frequencies, and voltages given machine specifications operating at rated slip. Problem 2 involves calculating power values given a 3-phase induction motor's rated power and windage/friction losses. Problem 3 involves calculating starting and full-load operating values like current, slip, and efficiency given motor parameters. Problem 4 involves determining the resistance value needed in the rotor circuit to reduce the motor speed from operating at a given speed and load to a lower speed. Problem 5 involves calculating torque values from the ratio of starting to full-load rotor current.
This document proposes generating power from speed breakers. When vehicles pass over the dome-shaped speed breakers, the kinetic energy is captured through a rack and pinion mechanism that converts the reciprocating motion into rotational motion. This rotation powers generators to produce electricity, with the voltage output varying based on vehicle speed and load. The system aims to harness wasted kinetic energy for low-cost power generation without obstructing traffic flow. Potential applications include street lighting and charging batteries at locations with high vehicle volume like parking lots. While initial construction costs are low, ongoing maintenance is still required.
The performance of a hydraulic turbine is influenced by the characteristics of the water column feeding the turbine:
water inertia
water compressibility
pipe wall elasticity in the penstock
The effect of water inertia is to cause changes in turbine flow to lag behind changes in turbine gate opening
The effect of elasticity is to cause traveling waves of pressure and flow in the pipe - a phenomenon referred to as water hammer
typically, the speed of propagation of such waves is about 1200 meters/sec
traveling wave model required only if penstock is very long
This document discusses the theory and experimental procedures for determining the load characteristics of DC shunt, series, and compound motors. The experiments involve constructing circuits for each motor type and measuring speed, current, torque, power, and efficiency at increasing loads. Load characteristics such as speed regulation, starting torque, and efficiency are then determined and compared between motor types from the experimental results.
DC motor and open loop speed control.
Closed loop speed control of DC drives.
Closed loop speed control with inner loop current control
Closed loop field control
Closed loop armature control.
This document outlines a presentation on modeling, controlling, and simulating a DC motor. It discusses modeling the DC motor using physical parameters and in Simulink. It then examines the open and closed-loop response of the DC motor with lag and lead compensators. The document also covers modeling a three-phase fully controlled bridge rectifier and simulating the complete system of the DC motor and inverter. Key steps discussed include introducing the topic, modeling the DC motor in multiple ways, simulating the response under open and closed-loop control, modeling the rectifier, and simulating the overall system performance under different firing angles.
This document provides information on different types of induction motor rotors including deep bar cage rotors, double cage rotors, and wound or slip ring rotors. It explains that deep bar cage rotors have higher starting torque than normal cage rotors due to their increased resistivity. Double cage rotors have an outer cage made of high resistivity material and an inner copper cage, allowing for high starting torque from the outer cage and good efficiency from the inner cage at normal speeds. Slip ring motors have a wound rotor connected to slip rings, permitting external resistors to be added to the rotor circuit to control speed.
This document discusses speed control methods for three-phase induction motors. It describes various speed control techniques including stator voltage control, stator frequency control, V/F control, and static rotor resistance control. It explains the advantages of speed control, such as energy savings and meeting different process requirements. Industrial applications of induction motor drives are also mentioned, such as in fans, compressors, pumps and machine tools.
This document discusses using a cycloconverter to provide self-control of a synchronous motor drive. A cycloconverter can directly convert AC power to a variable frequency that can control the speed of AC motors. For synchronous motor drives, cycloconverters are useful because they allow four-quadrant operation and smooth low-speed control with good dynamic response and low harmonic distortion, making them suitable for large, low-speed applications like mills and mine hoists. However, cycloconverters have limitations in that they can only vary the output frequency in steps and not smoothly, and are economically only suitable for high power applications due to their complex control circuitry and high cost.
One of the front runners in the area of renewable energy resources today is solar power. Photovoltaic cells are used to convert solar energy in to useful electrical energy. The objective of this paper is to construct an efficient solar car, for the daily office commuters of Dhaka city so that they can travel a fixed distance that they need to commute everyday on a reliable and economical car that essentially runs on free renewable solar energy. All calculations would be made bearing in mind the maximum distance travelled by Dhaka office commuter i.e. from Uttara to Motijheel since overcoming this distance would be the primary objective of the solar car to be built. The paper illustrates how the charge generated by an array of solar panels is received and its flow in and out of a battery pack is to be controlled using a microcontroller based charge controller to ensure efficient storing of charge in a battery pack. The stored energy would be divulged to a DC motor which would run the car. The design of a motor controller to control the car’s speed and forward/reverse direction of motion is shown. The mechanical construction from scratch of the chassis along with all necessary mechanical systems is illustrated. Finally the wiring of the electrical system onto the mechanical body is demonstrated.
Lecture 1b Selection of Motor Rating.pptxVarsha506533
The document discusses motor power ratings and thermal modeling of motors. It covers:
1) A thermal model that treats the motor as a homogeneous body to determine ratings. The model accounts for heat developed, dissipated, weight, specific heat, cooling area, heat transfer coefficient, and temperature rise over time.
2) Classes of motor duty including continuous, short-time, and intermittent periodic duty. Continuous duty involves constant loading while intermittent duty has periodic loading and resting cycles.
3) Methods for determining motor ratings for different duty cycles including equivalent current, torque, and power methods for fluctuating loads and intermittent duty. The rating selected should ensure temperature does not exceed safe limits.
AC motors are commonly used on aircraft and are classified by output power. Large motors have over 3KW output and are three-phase, while medium and small motors range from 3KW to 50W and are mostly single-phase. Miniature motors are under 50W. The document then describes various types of AC motors used on aircraft, including induction motors, which are the most widely used type and operate using a rotating magnetic field to induce current in the rotor. Two-phase induction motors can control rotation direction and speed, while split-phase motors use a capacitive winding to phase split the current. Synchronous motors maintain a constant speed set by the rotating magnetic field frequency.
In the present scenario power has becomes major need for human life. Due to day-to-day increase in population and lack of the conventional sources, it becomes necessary that we must depend on non-conventional sources for power generation. While moving, the vehicles posses some kinetic energy and it is being wasted. This kinetic energy can be utilized to produce power by using a special arrangement called “POWER HUMP”.
GENERATION OF ELECTRICITY THROUGH SPEED BREAKERSamiullah Kakar
This document describes a project to generate electricity from speed breakers on roads. As vehicles pass over speed breakers, kinetic energy is wasted through heat and friction. This project aims to convert that wasted energy into electrical energy. It proposes installing movable speed breakers connected to a rack and pinion mechanism to convert vertical motion into rotational motion. This rotation would generate electricity using standard generators. The document outlines the working principle, components, advantages, and scope of the project. It aims to provide a sustainable energy source by tapping into kinetic energy from traffic on busy roads.
Industrial Star Delta Starter for a 3-Phase Induction Motorelprocus
The most basic feature of an Induction motor is its self starting mechanism. Due to the rotating magnetic field, an emf is induced in the rotor, because of which current starts flowing in the rotor.
The document discusses the Static Kramer drive system, which allows a motor to operate at sub-synchronous speeds. It does this by converting the slip power in the rotor circuit into AC line power and returning it to the line using an inverter. At zero speed, the motor acts as a transformer and transfers all real power back to the line. Speed is controlled by varying the firing angle of the inverter, which adjusts the rotor slip and synchronous speed. The load torque is directly proportional to the DC link voltage and current, rotor speed, and inversely proportional to the turns ratio between the stator and rotor windings.
The document summarizes the key aspects of synchronous motors. It describes how synchronous motors synchronize the rotation of their shaft to the frequency of the AC power supply. There are two main types: non-excited motors which use the stator magnetic field to induce poles on the steel rotor, and DC-excited motors which require a separate DC source to excite the rotor. Synchronous motors have advantages over other motors like constant speed operation and unity power factor, and they are commonly used where precise constant speed is required, like in power generation and precision machinery.
This document provides an overview of synchronous motors. It discusses how synchronous motors operate based on interaction between the stator and rotor magnetic fields. The rotor rotates in synchronization with the rotating stator magnetic field. Damper windings or an auxiliary induction motor are used to start the synchronous motor and bring it up to near synchronous speed before energizing the rotor field. Synchronous motors provide constant synchronous speed and can operate at leading, lagging or unity power factor, making them suitable for applications requiring precise speed control or power factor correction.
A chopper is a static device that uses pulse width modulation or variable frequency control to obtain a variable DC output voltage from a constant DC input voltage. Choppers are widely used to control motors and regenerate braking energy. The document describes different types of choppers - Type A chops the input voltage to produce positive output voltage and current. Type B allows regenerative braking by producing negative current. Type C operates in both quadrants while Type D's output voltage can be positive or negative.
THIS DOCUMENT MAINLY CONTAINS THE HOW TO MODLE DC SERVO MOTOR BY USING THE MATLAB SIMULINK AND HOW IT WILL BEHAVE IS SHOWN IN THE MATHEMATICAL EQUATIONS AND THE PLOTTINGS ARE ALSO KEPT IN THIS DOCUMENT SO BY THIS IT IS USEFUL TO STUDY THE CHARACTRISTICS OF A DC SERVO MOTOR
This document describes a lab experiment where students modeled a motor/flywheel system using LabVIEW. They collected data for sinusoidal and square voltage waveforms and compared the experimental model to a theoretical model based on motor specifications. Key aspects of the comparison included transfer functions, step responses, and Bode plots. Students determined parameter values, created VIs to collect experimental data, and analyzed results to compare experimental and theoretical models.
This document outlines a presentation on modeling, controlling, and simulating a DC motor. It discusses modeling the DC motor using physical parameters and in Simulink. It then examines the open and closed-loop response of the DC motor with lag and lead compensators. The document also covers modeling a three-phase fully controlled bridge rectifier and simulating the complete system of the DC motor and inverter. Key steps discussed include introducing the topic, modeling the DC motor in multiple ways, simulating the response under open and closed-loop control, modeling the rectifier, and simulating the overall system performance under different firing angles.
This document provides information on different types of induction motor rotors including deep bar cage rotors, double cage rotors, and wound or slip ring rotors. It explains that deep bar cage rotors have higher starting torque than normal cage rotors due to their increased resistivity. Double cage rotors have an outer cage made of high resistivity material and an inner copper cage, allowing for high starting torque from the outer cage and good efficiency from the inner cage at normal speeds. Slip ring motors have a wound rotor connected to slip rings, permitting external resistors to be added to the rotor circuit to control speed.
This document discusses speed control methods for three-phase induction motors. It describes various speed control techniques including stator voltage control, stator frequency control, V/F control, and static rotor resistance control. It explains the advantages of speed control, such as energy savings and meeting different process requirements. Industrial applications of induction motor drives are also mentioned, such as in fans, compressors, pumps and machine tools.
This document discusses using a cycloconverter to provide self-control of a synchronous motor drive. A cycloconverter can directly convert AC power to a variable frequency that can control the speed of AC motors. For synchronous motor drives, cycloconverters are useful because they allow four-quadrant operation and smooth low-speed control with good dynamic response and low harmonic distortion, making them suitable for large, low-speed applications like mills and mine hoists. However, cycloconverters have limitations in that they can only vary the output frequency in steps and not smoothly, and are economically only suitable for high power applications due to their complex control circuitry and high cost.
One of the front runners in the area of renewable energy resources today is solar power. Photovoltaic cells are used to convert solar energy in to useful electrical energy. The objective of this paper is to construct an efficient solar car, for the daily office commuters of Dhaka city so that they can travel a fixed distance that they need to commute everyday on a reliable and economical car that essentially runs on free renewable solar energy. All calculations would be made bearing in mind the maximum distance travelled by Dhaka office commuter i.e. from Uttara to Motijheel since overcoming this distance would be the primary objective of the solar car to be built. The paper illustrates how the charge generated by an array of solar panels is received and its flow in and out of a battery pack is to be controlled using a microcontroller based charge controller to ensure efficient storing of charge in a battery pack. The stored energy would be divulged to a DC motor which would run the car. The design of a motor controller to control the car’s speed and forward/reverse direction of motion is shown. The mechanical construction from scratch of the chassis along with all necessary mechanical systems is illustrated. Finally the wiring of the electrical system onto the mechanical body is demonstrated.
Lecture 1b Selection of Motor Rating.pptxVarsha506533
The document discusses motor power ratings and thermal modeling of motors. It covers:
1) A thermal model that treats the motor as a homogeneous body to determine ratings. The model accounts for heat developed, dissipated, weight, specific heat, cooling area, heat transfer coefficient, and temperature rise over time.
2) Classes of motor duty including continuous, short-time, and intermittent periodic duty. Continuous duty involves constant loading while intermittent duty has periodic loading and resting cycles.
3) Methods for determining motor ratings for different duty cycles including equivalent current, torque, and power methods for fluctuating loads and intermittent duty. The rating selected should ensure temperature does not exceed safe limits.
AC motors are commonly used on aircraft and are classified by output power. Large motors have over 3KW output and are three-phase, while medium and small motors range from 3KW to 50W and are mostly single-phase. Miniature motors are under 50W. The document then describes various types of AC motors used on aircraft, including induction motors, which are the most widely used type and operate using a rotating magnetic field to induce current in the rotor. Two-phase induction motors can control rotation direction and speed, while split-phase motors use a capacitive winding to phase split the current. Synchronous motors maintain a constant speed set by the rotating magnetic field frequency.
In the present scenario power has becomes major need for human life. Due to day-to-day increase in population and lack of the conventional sources, it becomes necessary that we must depend on non-conventional sources for power generation. While moving, the vehicles posses some kinetic energy and it is being wasted. This kinetic energy can be utilized to produce power by using a special arrangement called “POWER HUMP”.
GENERATION OF ELECTRICITY THROUGH SPEED BREAKERSamiullah Kakar
This document describes a project to generate electricity from speed breakers on roads. As vehicles pass over speed breakers, kinetic energy is wasted through heat and friction. This project aims to convert that wasted energy into electrical energy. It proposes installing movable speed breakers connected to a rack and pinion mechanism to convert vertical motion into rotational motion. This rotation would generate electricity using standard generators. The document outlines the working principle, components, advantages, and scope of the project. It aims to provide a sustainable energy source by tapping into kinetic energy from traffic on busy roads.
Industrial Star Delta Starter for a 3-Phase Induction Motorelprocus
The most basic feature of an Induction motor is its self starting mechanism. Due to the rotating magnetic field, an emf is induced in the rotor, because of which current starts flowing in the rotor.
The document discusses the Static Kramer drive system, which allows a motor to operate at sub-synchronous speeds. It does this by converting the slip power in the rotor circuit into AC line power and returning it to the line using an inverter. At zero speed, the motor acts as a transformer and transfers all real power back to the line. Speed is controlled by varying the firing angle of the inverter, which adjusts the rotor slip and synchronous speed. The load torque is directly proportional to the DC link voltage and current, rotor speed, and inversely proportional to the turns ratio between the stator and rotor windings.
The document summarizes the key aspects of synchronous motors. It describes how synchronous motors synchronize the rotation of their shaft to the frequency of the AC power supply. There are two main types: non-excited motors which use the stator magnetic field to induce poles on the steel rotor, and DC-excited motors which require a separate DC source to excite the rotor. Synchronous motors have advantages over other motors like constant speed operation and unity power factor, and they are commonly used where precise constant speed is required, like in power generation and precision machinery.
This document provides an overview of synchronous motors. It discusses how synchronous motors operate based on interaction between the stator and rotor magnetic fields. The rotor rotates in synchronization with the rotating stator magnetic field. Damper windings or an auxiliary induction motor are used to start the synchronous motor and bring it up to near synchronous speed before energizing the rotor field. Synchronous motors provide constant synchronous speed and can operate at leading, lagging or unity power factor, making them suitable for applications requiring precise speed control or power factor correction.
A chopper is a static device that uses pulse width modulation or variable frequency control to obtain a variable DC output voltage from a constant DC input voltage. Choppers are widely used to control motors and regenerate braking energy. The document describes different types of choppers - Type A chops the input voltage to produce positive output voltage and current. Type B allows regenerative braking by producing negative current. Type C operates in both quadrants while Type D's output voltage can be positive or negative.
THIS DOCUMENT MAINLY CONTAINS THE HOW TO MODLE DC SERVO MOTOR BY USING THE MATLAB SIMULINK AND HOW IT WILL BEHAVE IS SHOWN IN THE MATHEMATICAL EQUATIONS AND THE PLOTTINGS ARE ALSO KEPT IN THIS DOCUMENT SO BY THIS IT IS USEFUL TO STUDY THE CHARACTRISTICS OF A DC SERVO MOTOR
This document describes a lab experiment where students modeled a motor/flywheel system using LabVIEW. They collected data for sinusoidal and square voltage waveforms and compared the experimental model to a theoretical model based on motor specifications. Key aspects of the comparison included transfer functions, step responses, and Bode plots. Students determined parameter values, created VIs to collect experimental data, and analyzed results to compare experimental and theoretical models.
Design & Construction of Switched Mode Power Supplies Sachin Mehta
This document describes a student laboratory experiment to design and test switched mode power supplies. The student:
1) Designed a DC-DC step-down converter with specifications including a 10V input and 5V output. Components were selected and simulations were run.
2) Implemented the circuit on a breadboard and measured waveforms in continuous and discontinuous modes. Efficiency was determined to decrease with increasing output current.
3) Repeated the process to design and analyze a DC-DC step-up converter with a 5V input and 10V output according to new specifications.
1) The document discusses developing a Simulink model of a three-phase induction motor that takes test data as input and simulates motor parameters and characteristics. Standard tests like no-load, blocked rotor, and DC resistance tests are used to obtain input data.
2) A per-phase equivalent circuit model is used to simulate the motor. Tests are simulated using the Simulink model and results are compared to experimental data.
3) Parameter estimation methods not requiring standard tests are also discussed, using manufacturer data to estimate parameters offline for simulation purposes.
In context of understanding problems faced by undergraduate studentswhile carrying out laboratory experiments dealing with high voltages, it was found that most of the students are hesitant to work directly on machine. The reason is that error in the circuitry might lead to deterioration of machine and laboratory instruments.So, it has become inevitable to include modern pedagogic techniques for undergraduate students, which would help them to first carry out experiment in virtual system and then to work on live circuit. Further advantages include that students can try out their intuitive ideas and perform in virtual environment, hence leading to new research and innovations.In this paper, virtual environment used is of MATLAB/Simulink for three-phase induction machines. The performance analysis of three-phase induction machine is carried out using virtual environment which includes Direct Current (DC) Test, No-Load Test, and Block Rotor Test along with speed torque characteristics for different rotor resistances and input voltage, respectively. Further, this paper carries out computer aided teaching of basic Voltage Source Inverter (VSI) drive circuitry. Hence, this paper gave undergraduates a clearer view of experiments performed on virtual machine (No-Load test, Block Rotor test and DC test, respectively). After successful implementation of basic tests, VSI circuitry is implemented, and related harmonic distortion (THD) and Fast Fourier Transform (FFT) of current and voltage waveform are studied.
Applying Parametric Functional Approximations for Teaching Electromechanical ...IOSRJEEE
In this paper functional approximations for the parameters of a DC machine are proposed. These nonlinear algebraic approximations are based on the experimental data that are obtained by carrying out several steady state and transient tests, besides, this method links mathematics and practical analysis of electromechanical systems, allowing students to improve their academic performance and comprehension by comparing estimated values with measured data. An excellent dynamic model results of combining the well known state space description and these parametric functional approximations. This augmented model provides reliable results even during demanding large-excursion transient conditions
Comparison of dc motor speed control performance using fuzzy logic and model ...Mustefa Jibril
1) The document compares the performance of controlling the speed of a DC motor using fuzzy logic and model predictive control (MPC) methods.
2) Simulation results show that the DC motor controlled with a fuzzy logic controller had less overshoot and faster settling time when tracking speed setpoints compared to the motor controlled with an MPC controller.
3) For both square wave and white noise speed setpoints, the MPC controller resulted in higher overshoot and longer settling times than the fuzzy logic controller.
Identification and Real Time Control of a DC MotorIOSR Journals
This document presents a method for identifying and controlling a DC motor. It describes an experimental setup using sensors to measure the motor's speed. A parametric estimation method called PEM is used to identify the dynamic model of the motor based on input-output data. The identified model is validated via simulation. Then, an optimal linear quadratic regulator (LQR) controller is designed using the identified model to control the motor's speed and position. Simulations and experiments show the controller is able to track step and square wave position and velocity commands.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Comparison of different controllers for the improvement of Dynamic response o...IJERA Editor
This document compares different fuzzy logic controllers for improving the dynamic response of an indirect vector controlled induction motor drive. It presents a new fuzzy PI controller with scaling factors and evaluates its performance against fuzzy PI and fuzzy MRAC (model reference adaptive control) controllers. Simulation results show that the proposed fuzzy PI with scaling factors has a faster settling time than fuzzy PI, and is less complex than fuzzy MRAC while still providing good parameter insensitivity. The proposed controller provides a compromise between complexity, accuracy and settling time for induction motor applications.
Simulation DC Motor Speed Control System by using PID Controllerijtsrd
Speed control system is the most common control algorithm used in industry and has been universally accepted in industrial control. One of the applications used here is to control the speed of the DC motor. Controlling the speed of a DC motor is very important as any small change can lead to instability of the closed loop system. The aim of this thesis is to show how DC motor can be controlled by using PID controller in MATLAB. The development of the PID controller with the mathematical model of DC motor is done using automatic tuning method. The PID parameter is to be test with an actual motor also with the PID controller in MATLAB Simulink. In this paper describe the results to demonstrate the effectiveness and the proposed of this PID controller produce significant improvement control performance and advantages of the control system DC motor. Mrs Khin Ei Ei Khine | Mrs Win Mote Mote Htwe | Mrs Yin Yin Mon ""Simulation DC Motor Speed Control System by using PID Controller"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25114.pdf
Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/25114/simulation-dc-motor-speed-control-system-by-using-pid-controller/mrs-khin-ei-ei-khine
A NEW APPROACH TO DTC METHOD FOR BLDC MOTOR ADJUSTABLE SPEED DRIVEScscpconf
This paper proposes a new approach to direct torque control (DTC) method for brushless direct current (BLDC) motor drives. In conventional DTC method, two main reference parameters are used as: flux and torque. In this paper, the new approach has been proposed to improve the BLDC motor dynamic performance. A main difference from the conventional method of it was that only one reference parameter (speed) was used to control the BLDC motor and the second control parameter (flux) was obtained from speed error through the proposed control algorithm. Thus, the DTC performance has been especially improved on systems which need variable speed and torque during operation, like electric vehicles. The dynamic models of the BLDC and the DTC method have been created on Matlab/Simulink. The proposed method has been confirmed and verified by the dynamic simulations on different working conditions.
Induction motor modelling and applicationsUmesh Dadde
A three-phase induction motor is one of the most popular and versatile motor in electrical
power system and industries. It can perform the best when operated using a balanced three-phase
supply of the correct frequency. In spite of their robustness they do occasionally fail and their
resulting unplanned downtime can prove very costly. Therefore, condition monitoring of
electrical machines has received considerable attention in recent years.
This document describes a project to design and control a hybrid energy storage system for a small plug-in electric vehicle. A battery and supercapacitor are used along with a multi-port converter. A permanent magnet brushless DC motor is used to drive the vehicle in four quadrants for forward, reverse, and regenerative braking modes. MATLAB simulation models are developed to model the power management system, motor drive, speed and current controllers, and vehicle dynamics. A DSP controller is used for hardware implementation, including driver circuits and interfacing with hall sensors to generate PWM signals for motor control. Future work includes integrating the power circuit with the motor, designing controllers for the bi-directional converter, implementing regenerative braking algorithms
The document summarizes a student project to control the speed and position of a DC motor using closed-loop feedback control. An encoder and sensors measured the motor's position, and an Arduino microcontroller implemented PID control to vary the motor's PWM signal based on errors between the measured and desired position/speed. Key components included an H-bridge motor driver, encoder, sensors, and a 3D printed mounting base designed by the students. Diagrams depict the control system circuitry and 3D models.
CONTROL OF AN INDUCTION MOTOR WITH DOUBLE ANN MODEL BASED DTCcsandit
Direct torque control (DTC) is preferably control method on high performance control of induction motors due to its dvantages such as fast dynamic response, simple and robust control structure. However, high torque and current ripples are mostly faced problems in this control method. This paper presents artificial neural network (ANN) based approach to the DTC method to overcome mentioned problems. In the study, by taking a different perspective to ANN and DTC integration, two different ANN models have been designed, trained and implemented. The first ANN model has been used for switch selecting process and the second one has been used for sector determine process. Matlab/Simulink model of the proposed ANN based DTC method has created in order to compare with the conventional DTC and the proposed DTC
methods. The simulation studies have proved that the induction motor torque and current
ripples have been reduced remarkably with the proposed method and this approach can be a
good alternative to the conventional DTC method for induction motor control
This document provides a summary of an individual's educational qualifications, skills, projects, internships and technical activities. It includes details of the individual's contact information, educational background with percentages and specializations, skills in software languages and technical packages, undergraduate and postgraduate projects on topics like automatic water filling pump control and overcurrent protection relay, internship projects on BLDC motor console and flyback SMPS simulation, and achievements like qualifying GATE 2014 and securing first positions in technical competitions.
PARAMETER IDENTIFICATION AND MODELLING OF SEPARATELY EXCITED DC MOTOR ijiert bestjournal
DC Motors can be used in various applications and c an be used in various sizes and rates as per the applications. In this paper we have focused on the physical parameters of DC motor. Modelling of any system is an important task in con trol applications because the electrical and mechanical components should be represented in math ematical form. Physical parameters are important in calculating the transfer function of D C motor. By using the physical parameters one can design the controller for controlling speed of the motor. A proportional�integral� derivative controller (PID controller) is a generic control loop feedback mechanism (controller) widely used in industrial control syst ems. The controller attempts to minimize the error by adjusting the process control inputs. The weighted sum of the proportionate,integrate,differentiate actions is used to adjust the process via a control element such as the position of a control valve,or the power supplied.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
A NEW FUZZY LOGIC BASED SPACE VECTOR MODULATION APPROACH ON DIRECT TORQUE CON...csandit
The induction motors are indispensable motor types for industrial applications due to its wellknown
advantages. Therefore, many kind of control scheme are proposed for induction motors
over the past years and direct torque control has gained great importance inside of them due to
fast dynamic torque response behavior and simple control structure. This paper suggests a new
approach on the direct torque controlled induction motors, Fuzzy logic based space vector
modulation, to overcome disadvantages of conventional direct torque control like high torque
ripple. In the proposed approach, optimum switching states are calculated by fuzzy logic
controller and applied by space vector pulse width modulator to voltage source inverter. In
order to test and compare the proposed DTC scheme with conventional DTC scheme
simulations, in Matlab/Simulink, have been carried out in different speed and load conditions.
The simulation results showed that a significant improvement in the dynamic torque and speed
responses when compared to the conventional DTC scheme.
10 Ways to Improve Writing Skills in 2023 – Beginner to Professional GuideAlexRobert25
When you enter the professional world, you will realize that communication skills are extremely important for personal accomplishment and a successful career. While educational institutions place special emphasis on students’ communication skills development, writing skills are equally important. These skills enable you to communicate efficiently in an official environment via correspondence, persuade potential customers, and win business.
readessay.com-Types of Accounting and Careers and Job Opportunities in 2022-2...AlexRobert25
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Physics has been unified in our daily lives so well that it has imprisoned people with its combined forces. Physics have many long-term and short-term uses in our daily lives from which our lives are evolved. Many technologies today incorporate the laws of physics in their working. In this essay, some of the noteworthy applications of physics in our daily lives, have been mentioned.
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Chapter wise All Notes of First year Basic Civil Engineering.pptxDenish Jangid
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) CurriculumMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
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𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
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How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
How to Setup Warehouse & Location in Odoo 17 Inventory
Dc motor modelling lab report
1. 1/4
DC Motor Modelling Lab Report
mrjourno.com/electronics/dc-motor-modelling-lab-report-1614372582.html
Experiment 1: DC Motor Modelling
Abstract
The experiment is on the DC motor modelling along with DC motor validation. The
system of DC analysed in this experiment by the connection of hardware and software.
The bump test method is done which depends on responses of the stable system. By the
simulation, the modelling parameters founded in this study. K is steady-state gain and ?
is time constant. In the validation, the values of K and ? tested to get the better output
results of the rotation of the DC motor. This study discusses the theory of experiments.
The results are obtained through practical evaluation and calculation.
Keywords: modelling parameters, steady-state gain
Introduction
A DC motor is the machine which transforms the electric energy in mechanical energy in
the form of the rotation. The movement of the DC motor produced through physical
electromagnetism behaviour. DC motors also have the inductors and create a magnetic
2. 2/4
field which used for generating the movement. In the DC motor modelling, the motor
converts electrical current armature n mechanical torque that applied to shaft. An applied
torque then produces the velocity to inertia and friction of load and motor. The common
device usually used as the actuator in the mechanical control is DC motor [1].
In this study, the experiment is done on DC motor modelling. The theory of the
experiment discussed and it also evaluates the results on the basis of the experiment
performed with the connection of both software and hardware. This study shows the
phase experiment of DC motor about modelling.
Theory
In the experiment, there has a DC motor which works on the circuit. A DC motor has a
disc which is coupled with it. It operates with software to control the speed of the disc in
DC motor. The software that is used DC motor modelling is LabView for the phase
section. The hardware is connected to the computer and when Dc motor rotates the
output of the motor comes on the software. The signal of the motor fluctuating On and Off
square wave and continuous in 10 sec. The input seems to be in the square wave in 0 and
1. To control the speed of the motor, the motor will model. For modelling, the values of
amplitude, K and frequency adjusted. I modelling the DC motor corresponding speed
along with the voltage responses as in input. The experiment takes the speed of the
measurements of responses.
In the signal generator, the amplitude is 2V, frequency is 0.4 HZ and offset is 3.0V in 10
sec. The peak value of the output signal also evaluated. The bump test method is the test
on the step response for a stable system. With the chosen constant input, the system
reaches on equilibrium and input change to the new level which records the output [2].
The modelling parameters K and ? are calculated by bumptest method.
K= ?y?u
As y is the speed difference and u is the voltage input difference. And the
model time constant is:
?=t1-t0
Model validation is done in the experiment. In the validation process, the value of K
increased and the value of ? decreased. In this way, the input and output signal match
and complete the modelling of the Dc motor.
Result and discussion
3. 3/4
At the start of the experiment, the input and output signal simulation evaluated. When
the software is run, then automatically the hardware disc run. When the signal generates
ON/OFF the time noted. The motor speed has the input in time at which input has 1V and
output tries to be the similar input shape and reaches steady-state value. In the 3V
amplitude, the speed is high. If the frequency is less, then there would be less repetition of
the signal. On 0 frequency, there is no repetition in the signal. The speed and voltage used
for computing the steady-state gain of DC motor as it is the time-constant [3].
DC motor has a disc which rotates and gives transitional motion and generate a signal in
the software. The square signal produce and input signal and output signal have
amplitude and frequency differences among them which modelled to make the same
signal. For this purpose, the modelling and validation are done in this experiment by
changing the values of modelling parameters. The speed of the motor has a similar shape
as simulation with fluctuation because of the external factors. The experiments explain
the modelling of DC motor by evaluating DC motor responses. The experimentation is
done by using the open-loop system. The calculated values in the experiment give a much
better response of the system and values of K and ? are calculated to achieve the
response.
Conclusion
It concludes that the purpose of the experiment is successfully achieved. Both model
validation and bump test method shows the best results in the experiment. The modelling
of the DC motor is done on the Lab View software. The modelling of DC motor
comprehends response and also performs system because of different input signals and it
can be improved in further modelling perform. The variation of speed in the modelling
also evaluated which needs more experimentation.
References
[1] M. R. Mohamed, "Control of dc motor external resistor starter by using armature
current decay sensing technique," ARPN Journal of Engineering and Applied
Sciences, vol. 11, no. 7, 2016.
[2] D. Mathew and M. Witson, "Modelling of BLDC Motor, Using LabVIEW Software,"
2015.
[3] D. M. S. S. Modeling, "DC Motor Speed: Simulink Modeling," 2015. [Online].
Available: http://ctms.engin.umich.edu/CTMS/index.php?
example=MotorSpeed§ion=SimulinkModeling.
4. 4/4
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