POWER ELECTRONICS BASED AUTONUMOUS POWER SYSTEMS
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This document discusses autonomous power systems enabled by power electronics. It first defines an autonomous region as one that can govern itself. It then discusses how power electronics can enable autonomous power systems by allowing inverters to operate as virtual synchronous generators, as in one technical route, or through robust droop control technology in another route. The document notes challenges with conventional droop control and how more robust droop control can address issues like parameter drift through additions like an integrator and output voltage feedback. It aims to explore technical routes for autonomous power systems.
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now a days power requirement is increasing day by day.
to meet the requirements new power plants constructing, for maintenance of these plants skilled man power is not sufficient. in such cases a robot which can maintain the power system satisfies the requirements.
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To detect the various factors that cause the faults in the underground cables before the occurrence of the fault and monitor them by using a mobile robot.
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Robotic Monitoring of Power Systems
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The document describes a project report on robotics monitoring of power systems. It discusses how robots can be used to detect faults in transmission lines by using sensors like acoustic, electric field, infrared, and multi-processor control. The robot monitoring method allows faults to be detected before failures occur and is more economical than conventional human inspection methods. It also discusses the design of the robotic platform, sensor technologies for monitoring cable insulation status and energization, advantages like replacing dangerous human work and operating in hazardous environments.
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Debasis Mohanty gave a presentation on wireless charging. Wireless charging uses electromagnetic induction to transfer power through induction coils, allowing devices to charge without being plugged in. There are three main types of wireless charging: resonance, inductive, and radio frequency. Wireless charging works through an oscillator circuit that creates a magnetic field between transmitter and receiver coils to charge a device's battery. While convenient, wireless charging is currently slower and more expensive than wired charging. Potential applications include charging pads for mobile devices and electric vehicles.
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strategies are considered. Extensive simulations will be carried out with PI and fuzzy controller
for both active and reactive power (P-Q) and instantaneous active and reactive current(Id-Iq)control
strategies under different voltage conditions such as balanced, unbalanced and non-sinusoidal conditions.
Using instantaneous active and reactive current (Id-Iq) control method with fuzzy logic controllers gives an
outstanding performance under any voltage conditions.
Paper id 41201606
This document discusses power quality improvement in a multi-machine system using STATCOM. It begins with an abstract that outlines using STATCOM to maintain voltage stability and improve power factor and harmonic reduction with a wind turbine connected to the grid. It then discusses how wind power injection affects power quality according to IEC standards. The paper studies power quality issues caused by installing a wind turbine and proposes using STATCOM at the point of common connection to mitigate these issues. It simulates the STATCOM control scheme for the wind energy system using MATLAB to show its effectiveness in improving power quality by relieving the main supply of reactive power demands.
Inductive power transfer
This document presents an overview of inductive power transfer (IPT) by Sukanya Jadhav. It defines IPT, describes the basic principles and equations, and discusses applications including electric vehicle charging, monorails, factory automation, tunnel lighting, and home electronics. IPT allows contactless power transfer across air gaps and is beneficial for applications that require hands-free or weatherproof charging. Further research could expand its implementation and benefits to industries and transportation.
Electrical System Design Initial
This document provides an introduction to designing electrical power systems. It outlines several key factors to consider, including safety, reliability, flexibility, maintenance, and cost. Safety of equipment and personnel is the most important design consideration. The system should also be reliable, easy to operate and maintain, and able to accommodate future load and equipment changes. Additional topics covered include power sources, supply systems, climate conditions, load calculations, and basic electrical theory concepts needed for design such as Ohm's law, voltage, current, resistance, inductance, and capacitance.
Power factor improvement using upfc
The significance of power factor correction (PFC) has long been visualized as a technology requirement for improving the efficiency of a power system network by compensating for the fundamental reactive power generated or consumed by simple inductive or capacitive loads. With the Information Age in full swing, the growth of high reliability, low cost electronic products have led utilities to escalate their power quality concerns created by the increase of such “switching loads.” These products include: entertainment devices such as Digital TVs, DVDs, and audio equipment; information technology devices such as PCs, printers, and fax-machines; variable speed motor drives for HVAC and white goods appliances; food preparation and cooking products such as microwaves and cook tops; and lighting products, which include electronic ballasts, LED and fluorescent lamps, and other power conversion devices that operate a variety of lamps. The drivers that have resulted in this proliferation are a direct result of the availability of low-cost switch-mode devices and control circuitry in all major end-use segments: residential, commercial, and industrial.
In order to keep power quality under the limits proposed by standards, it is required to incorporate some sort of compensation. There are two basic types of PFC circuits: active and passive. The simplest power factor correctors can be implemented using a passive filter to suppress the harmonics in conjunction with capacitors or inductors to generate or consume the fundamental reactive power, respectively. Active power factor correction circuits have proven to be more effective, generally integrated with the switch-mode circuitry, and actively control the input current of the load. This enables the most efficient delivery of electrical power from the power grid to the load. The demand for new smart, green products has set the stage for a worldwide migration from antiquated passive circuits to active correctors as well as from traditional analog technology to digital techniques. New digital active power factor correction delivers better full- and light-load power efficiency while lowering system costs, enabling smaller designs and providing a clear path for further feature enhancements and improved competitive positioning for a whole host of consumer and industrial products. Cirrus Logic’s novel advances in digital active PFC technology signify a major enabling element in the development of the newest generation of low cost, energy-efficient switch mode products.
ANALYSIS AND SIMULATION OF HARMONICS FOR VARIOUS RESIDENTIAL LOADS USING SIMU...
Harmonics are the by - products of modern electronic devices i.e. nonlinear loads,this harmonics by drawing current in abrupt short pulses,rather than in a smooth sinusoidal manner. Any distribution circuit feeding nonlinear loads will contain some degree of harmonic frequencies in multiples . Due to the rapidly increasing number of non - linear loads in distribution systems,the harmonic distortion of the current and voltage increases. Examples of non - linear loads are personal computer,television set (TV),f luorescent tube with electronic ballast,compact fluorescent lamp,battery charger,uninterrupted power supply (UPS) and any other equipment powered by switched - mode power supply (SMPS) unit. As the number of harmonics - producing loads in residences has inc reased over the years,it has become increasingly necessary to address their effects on the distribution system. Power Quality of distribution networks is severely affected due to the flow of these generated harmonics. Harmonic currents generated by nonli n ear loads can cause problems on the power system. These harmonics can cause excessive heat in many appliances,and hence reduce the life span of the distribution transformer supplying such loads,protecting equipments in power system. It can also increase power consumption and reduce system efficiency. It also lowers the system power factor. In this paper presents the results of a SIMULINK of harmonic distortion caused by different non linear home appliances a nd analysis of percentage total harmonic distort ion which is found between ranges of 50 to greater than 200.
Performance and Analysis of Reactive Power Compensation by Unified Power Flow...
The Unified Power Flow Controller (UPFC) is the most versatile of the FACTS controllers envisaged so far. The main function of the UPFC is to control the flow of real and reactive power by injection of a voltage in series with the transmission line. Both the magnitude and the phase angle of the voltage can be varied independently. Real and Reactive power flow control can allow for power flow in prescribed routes, loading of transmission lines close to their thermal limits and can be utilized for improving transient and small signal stability of the power system. In this paper UPFC is incorporated in a SMIB (Single Machine Infinite Bus) system and the response of SMIB system has been recorded with and without UPFC, thereafter the comparison of both the output has been done. When no UPFC is installed, real and reactive power through the transmission line cannot be controlled. This paper presents control and performance of UPFC intended for installation on that transmission line to control power flow. Installing the UPFC makes it possible to control amount of active power flowing through the line. Simulations are carried out using MATLAB software to validate the performance of the UPFC.
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POWER ELECTRONICS BASED AUTONUMOUS POWER SYSTEMS
- 1. What Is AUTONOMOUS?? A country or region having the freedom to govern itself or control its own affairs.
- 3. ABOUT THE JOURNAL QING CHANG ZHONG FELLOW,IEEE Ph.D in control and power engineering from imperial college, London. Extracted from :- IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. References given :- 1. Control of power inverters in Renewable energy and smart grid integration.by T.HORNIK 2. Output impedance design of parallel – connected UPS inverters with wireless load sharing control, J.M GUERRERO,L.G.De Vicuna. Citation information:- DOI 10.1109/TIE.2017.2677339
- 4. Just observe
- 5. POWER SYSTEM POWER ELECTRONICS Power electronics (to) power systems
- 9. TECHNICAL ROUTE BASED ON THE SYNCHRONVERTERS TECHNOLOGY The original synchronverter to Operate Inverters as Virtual Synchronous Generators
- 10. Technical Route Based on The Robust Droop Control Technology The electricity generation of current power systems is dominated by Synchronous Machines, which have high inductive output impedances compared to virtual synchronverters. The impedance of converters play an important role in System stability.
- 11. • The conventional droop control is not Robust against parameter drifts, component mismatches and numerical errors etc. There is a fundamental trade off between the voltage regulation and power sharing accuracy. • A robust droop controller to address these problems ,after introducing an integrator on to the voltage amplitude channel and an output voltage feedback
- 14. Now Recognize
- 15. ANY QUERIES ???