Nowadays, it is very important to maintain voltage level. Controlling of that voltage is also important. This Presentation contains methods of voltage control.
In microgrid, if fault occurs or any other contingency happens, then the problems would be created which are related to power flow, also there are various protection schemes are used for minimize or eliminate these problems.
Voltage control is used for reactive power balance and P-f control is used for active power control.
Various protection schemes such as, over current protection, differential protection scheme, zoning of network in adaptive protection scheme are used in microgrid system .
Nowadays, it is very important to maintain voltage level. Controlling of that voltage is also important. This Presentation contains methods of voltage control.
In microgrid, if fault occurs or any other contingency happens, then the problems would be created which are related to power flow, also there are various protection schemes are used for minimize or eliminate these problems.
Voltage control is used for reactive power balance and P-f control is used for active power control.
Various protection schemes such as, over current protection, differential protection scheme, zoning of network in adaptive protection scheme are used in microgrid system .
HVDC (high-voltage direct current) is a highly efficient alternative for transmitting large amounts of electricity over long distances and for special purpose applications.
HVDC (high-voltage direct current) is a highly efficient alternative for transmitting large amounts of electricity over long distances and for special purpose applications.
Its work like a cell phone recharge phone if recharge is over electricity gone after that we need to recharge acount main benift is that we can oprate it from any where to the world
Design and Implementation of Single Precision Pipelined Floating Point Co-Pro...Silicon Mentor
Floating point numbers are used in various applications such as medical imaging, radar, telecommunications Etc. This paper deals with the comparison of various arithmetic modules and the implementation of optimized floating point ALU. For more info download this file or visit us at:
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Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
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Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
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Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
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Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
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and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
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Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
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This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Final project report on grocery store management system..pdfKamal Acharya
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Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
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Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
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Load monitoring
1. ARDUINO BASED
LOAD
MONITORING &
CONTROL SYSTEM
WITH MATLAB GUI
By
Krishnakumar R V
M.E Power Engineering and Management
Anna University Chennai
College of Engineering, Guindy
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
2. INTRODUCTION
One avenue through which today’s energy problems can be
addressed is through the reduction of energy usage in
households. The existing utility system only provides feedback
at the end of the month in the form of a bill and consumed
kilowatt hours (kWh).
The Arduino based load monitoring system keeps a track on the
household power with a MATLAB interface. The paper aims to
provide a clear picture of a home’s power consumption, and
through this data provide an estimate of amount to be paid as
bill.
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
3. OBJECTIVES
System requirements
Accurately collect a house’s total power consumption
safely, and with a relatively fast update rate.
Transmit the information back to a base station to be
represented visually to a user.
Provide easy user control of the devices
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
5. MEASUREMENT
(CURRENT)
HALL CURRENT SENSOR
Principle: HALL effect
• Magnetic field is produced
by current flowing
through it.
• Charge carriers are displacement
• Voltage proportional to current is produced
“HALL VOLTAGE”
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
6. Measurement (voltage)
BRIDGE RECTIFIER WITH C FILTER
• AC line voltage stepped down from 230V to 9V
• Rectified by diodes
• Capacitor filter smoothens the wave
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
7. Arduino uno
• Sensor outputs to analog pins
• ADC converts received signals into a 10bit digital value
• The 10 bit value is scaled to 5V
Read value=(ADC value/1023)*5
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
9. Arduino & matlab interface
why???
• Arduino only collects the line values.
• There should be simple a user interface.
• So, MATLAB GUI is one of the best software for data
acquisition and user interface.
• Also different curves provide an easy understanding of
the scenario.
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
10. Arduino & matlab interface
• Line data from arduino - transmitted to MATLAB
program on PC through USB serial port.
• Baud rate is 9600.
• The input values are stored in various MATLAB
variables.
• The variables current ,voltage and power consumed are
plot against time.
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
11. Matlab gui
• GUI window contains buttons for various operations.
• Each button has a callback function defined to perform
certain tasks
• The GUI window provides an easy access to various
modes of operation of monitoring
• The GUI window also provides buttons to switch on and
off the loads.
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
12. Functions in gui
• Data logger
• Stop reading
• Billing
• Load on & off
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
14. DATAAcquisition
• Data is read by ATMEGA328
• Time varying signal from sensor is converted to digital
by 10bit ADC
• The voltage is then scaled to 5V
• The actual values are calculated using sensitivity of the
sensors
• These values are stored in a text file for future reference
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
17. Calculations
• Hall current sensor
sensitivity=100 mV/A
Therefore, scaling factor=10
offset voltage=0.5*Vcc V
VCC =Supply voltage to the sensor module
line current(I)=((ADC*5/1023)-2.5)*10 A
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
18. Calculations (contd…)
• Bridge rectifier
sensitivity=21e-3
scaling factor=46
line voltage(V)=(ADC*5/1023)*46 V
• Energy consumed
power(P)=V*I*cosø W
energy=P*t kWh
t time in hours
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
19. Load control
• Buttons are provided for load control in GUI
• Allows user to switch the loads on and off
• This is implemented to have a control system
• The button’s call back function sends a signal to Arduino
and the load is switched on & off
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
20. Billing
• The bill is generated by pressing BILL button
• The function uses TNEBs rate slab
• Domestic tariff slab is included in the function
• The amount is calculated and displayed in a dialog box
• This is coded in such a way that it meets the need of the
user
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
21. FUTURE SCOPE???
• Aims at providing a wireless transmission of data
Wireless transmission
GSM(Global System for Mobile communication )
IEEE 802.11 (wifi)
IEEE 802.15.4 (zigbee)
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
22. conclusion
Thus the work suggests a method for continuous load
monitoring and control system which is optimized using
MATLAB GUI
The same can also be implemented using Process IDE
which is also used for data acquisition and processing
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
23. references
[1]non intrusive load management
http://people.ece.cornell.edu/land/courses/eceproje
tsland/STUDENTPROJ/2009to2010/csm44/RPT.pdf.2010
[2] Arduino.
http://arduino.cc/en/Main/ArduinoUNO.2015
[3]MATLAB GUI
http://in.mathworks.com/discovery/matlab-gui.html
[4] Wayne Storr. Full-wave Rectifiers.
http://www.electronicstutorials.ws/diode.html.2010
[5] Rod Elliot. Precision Rectifiers.
http://sound.westhost.com/appnotes/an001.htm. 2009
6/22/2017
DeptofPowerEngg&Mgmt,AnnaUniversity
Chennai
