Design of Active Power Filter for Low Voltage and High Current Switching Power Supply

2011 ◽  
Author(s):  
Qiang Sun ◽  
Junpeng Ji ◽  
Huan Tian ◽  
Guitao Chen
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Active Power Filter ◽  
Active Power ◽  
High Current ◽  
Switching Power Supply ◽  
Current Switching ◽  
Switching Power ◽  
Power Filter

An Active Power Filter Controller Based on Dual-DSPs in Low-Voltage Power System

2013 ◽  
Vol 291-294 ◽  
pp. 2302-2307
Author(s):  
Wan Feng Zou ◽  
Lei Zhang
Keyword(s):  
Power System ◽  
High Speed ◽  
Low Voltage ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Current ◽  
Nonlinear Load ◽  
Power Filter ◽  
And Control

To compensate harmonics from nonlinear load, the controller of Active Power Filter (APF) need to detect harmonic and generate compensation current in high speed. APF controller functions are divided into two parts: outside controller part and inside controller part. Inside controller part detect harmonic current and control the IGBT to generate grid harmonics current. Outside controller part detect common power parameters and generate signal of management in main circuit. An experiment circuit of APF Controller is established. Some experiments are presented here.

Design of Main Circuit and Analysis of Active Power Filter

2012 ◽  
Vol 150 ◽  
pp. 160-164
Author(s):  
Yun Ce Jin ◽  
Li Chen Zhang
Keyword(s):  
Power Supply ◽  
Fuzzy Controller ◽  
Active Power Filter ◽  
Voltage Control ◽  
Pi Controller ◽  
Active Power ◽  
Power Electronic ◽  
Nonlinear Loads ◽  
Power Filter

With the use of power electronic equipments and increasing nonlinear loads, the problems of quality of power supply becomes serious. Different kinds of loads need different active power filter (APF). Performance of APF depends on the design of main circuit. In this paper, the principle of APF and many kinds of structure of main circuit are presented. Multilevel, injection circuit and multiplicity are analyzed. A combined controller, the combination of PI controller and fuzzy controller, is applied to voltage control of DC side.

Active power filter for reactive power compensation for the powerful sounding pulses shapers

2020 ◽  
Vol 1 (1) ◽  
pp. 21-30
Author(s):  
Olena Levon ◽  
Igor Domnin
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Reactive Power ◽  
Active Power Filter ◽  
Reactive Power Compensation ◽  
Active Power ◽  
Supply System ◽  
Active Filter ◽  
Supply Network ◽  
Power Filter

The expediency of using a power active filter in the mode of reactive power compensation of the supply network for the powerful sounding pulses shaper power supply system of the Institute of ionosphere NAS and MES of Ukraine is shown. An analysis of the literature has been carried out, which shows the effectiveness of solving the problem of reactive power compensation, filtering higher harmonics of the power supply network using active filtering of higher harmonics of current or voltage using an additional energy source to obtain a compensating signal in the form of current or voltage. The choice of the power circuit for constructing a power active filter has been made. A voltage inverter on IGBT transistors is used as a power active filter. The basic principles of operation of the power active filter control system are described, which are based on the p-q theory of power and provide for the calculation of instantaneous values ​​of the task currents for each phase of a three-phase power supply system. The work of the Matlab-model of the power supply system of the shaper is shown, the oscillograms of the main energy characteristics of the shaper are given. As a result of using a power active filter, the current of the supply network becomes close to sinusoidal, and the power factor tends to 1. A positive effect on the efficiency of the shaper when the power active filter is included in the supply network is noted, which is due to the efficiency of compensation of the reactive power consumed by the shaper from the supply network. The simulation results are presented, in particular, graphs of reactive power change at the point of connecting the power active filter to the supply network, at different levels of reactive power consumption by the shaper. The results obtained confirmed the possibility of using a power active filter in the mode of reactive power compensation of the supply network when solving the problems of improving the electromagnetic compatibility of powerful sounding pulses shapers with the supply network, reducing losses and increasing the reliability of the shapers. Keywords: active power filter, reactive power control, control systems

scholarly journals A Multi–Objective Optimization for Performance Improvement of the Z–Source Active Power Filter

2016 ◽  
Vol 67 (5) ◽  
pp. 358-364 ◽  
Author(s):  
Seyed Mohsen Hosseini ◽  
Yousef Alinejad Beromi
Keyword(s):  
Negative Impact ◽  
Active Power Filter ◽  
Active Power ◽  
Multi Objective Optimization ◽  
Power Losses ◽  
Multi Objective ◽  
Switching Power ◽  
Power Filter ◽  
Multi Objective Genetic Algorithm ◽  
Boost Factor

Abstract The high power dissipation is one of the most important problems of the z-source inverter (ZSI). By using an appropriate optimization scheme, the losses can be significantly reduced without any negative impact on the other characteristics of the inverter. In this paper, a multi-objective optimization is implemented in order to reduce the ZSI total losses as well as to improve the z-source active power filter (APF) performance. The optimization is focused on the four important objectives including power losses of the Z-source APF, the initial cost of the system components, the voltage and current ripples, and the boost factor of the z-source network. For these purposes, the multi-objective genetic algorithm (MOGA) is employed. The numerical and simulation results are presented to evaluate the optimization performance. The results show that a good balance can be achieved between the switching power losses, the voltage-current ripple levels, the component costs and the boost factor using the optimized parameters.

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