scholarly journals Simulation and RTDS Hardware Implementation of SHAF for Mitigation of Current Harmonics with p-q and Id-Iq Control Strategies Using PI Controller

2011 ◽  
Vol 1 (3) ◽  
pp. 54-62 ◽  
Author(s):  
S. Mikkili ◽  
A. K. Panda
Keyword(s):  
Hardware Implementation ◽  
Control Strategies ◽  
Pi Controller ◽  
Current Harmonics ◽  
Active Power Filters ◽  
Power Filters ◽  
Three Phase ◽  
Detailed Simulation ◽  
Supply Voltages ◽  
Real Time Digital Simulator

Control strategies for extracting the three-phase reference currents for shunt active power filters are compared, evaluating their performance under different source conditions in MATLAB/Simulink environment and also with Real Time Digital Simulator (RTDS) Hardware. When the supply voltages are balanced and sinusoidal, the two control strategies are converging to the same compensation characteristics but when the supply voltages are distorted and/or un-balanced sinusoidal, these control strategies result in different degrees of compensation in harmonics. The p-q control strategy is unable to yield an adequate solution when source voltages are not ideal.  Extensive Simulations are carried out with PI controller for both p-q and Id-Iq control strategies for different voltage conditions and adequate results were presented. The 3-ph 4-wire SHAF system is also implemented on RTDS Hardware to further verify its effectiveness. The detailed simulation and RTDS Hardware results are included.

RTDS Hardware Implementation and Simulation of 3-ph 4-wire SHAF for Mitigation of Current Harmonics with p-q and Id-Iq Control Strategies using Fuzzy Logic Controller

2011 ◽  
Vol 12 (5) ◽  
Author(s):  
Suresh Mikkili ◽  
A.K. Panda
Keyword(s):  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Control Strategies ◽  
Current Harmonics ◽  
Active Power Filters ◽  
Power Filters ◽  
Detailed Simulation ◽  
Source Voltage ◽  
Supply Voltages ◽  
Real Time Digital Simulator

Control strategies for extracting the three-phase reference currents for shunt active power filters are compared, evaluating their performance under different source voltage conditions in MATLAB/Simulink environment and also with Real Time Digital Simulator (RTDS) Hardware. When the supply voltages are balanced and sinusoidal, then all control strategies converge to the same compensation characteristics. However, when the supply voltages are distorted and/or un-balanced sinusoidal, these control strategies result in different degrees of compensation in harmonics. The p-q control strategy unable to yield an adequate solution when source voltages are not ideal. Extensive Simulations are carried out with Fuzzy Controller for both p-q and Id-Iq control strategies for different voltage conditions and adequate results were presented. The 3-ph 4-wire SHAF system is also implemented on a RTDS Hardware to further verify its effectiveness. The detailed simulation and RTDS Hardware results are included.

A Novel Load Compensation Algorithm under Unbalanced and Distorted Supply Voltages

2007 ◽  
Vol 8 (5) ◽  
Author(s):  
K. Karthikeyan ◽  
Mahesh Kumar Mishra
Keyword(s):  
Supply Voltage ◽  
Positive Sequence ◽  
Active Power Filters ◽  
Power Filters ◽  
Three Phase ◽  
Non Linear ◽  
Detailed Simulation ◽  
Supply Voltages ◽  
Non Linear Load ◽  
Wire System

In this paper, a novel control algorithm is proposed to compensate the unbalanced and non-linear loads in a three-phase four-wire system using active power filters. The algorithm results in balanced and sinusoidal source currents under unbalanced and distorted three-phase supply voltages. The algorithm makes use of the positive sequence extraction of the supply voltage and the theory of instantaneous symmetrical components. To illustrate the concept, a three-phase four-wire system with unbalanced and non-linear load is considered for compensation. The detailed simulation and experimental results are presented to validate the proposed method.

scholarly journals Mitigation of Harmonics in Three - Phase Three - Wire System by using Fuzzy Logic Controlled Shunt Active Filters

2020 ◽  
Vol 6 (11) ◽  
pp. 87-91
Author(s):  
Goggi Kirshna Sanyasi Rao and P.Murari
Keyword(s):  
Reactive Power ◽  
Control Strategies ◽  
Pi Controller ◽  
Active Power ◽  
Active Filters ◽  
Shunt Active Power Filter ◽  
Current Harmonics ◽  
Active Power Filters ◽  
Power Filters ◽  
Synchronous Reference Frame

This paper shows the method of improving the power quality using shunt active power filter. In order to protect the supply system from current harmonics, we have to use the active power filters. These are used to compensate the reactive power compensation, but the performance of active power filters are based on various control strategies. This paper presents the complete examination to estimate the working of SHAF for generating the current references under steady and transient for balanced, unbalanced and non-sinusoidal conditions by using PI controller. The P-Q theory and synchronous reference frame theory, which are widely used in SHAF. The most validate results obtained by simulation with matlab/simulink software are carried out with PI controller for P-Q control theory for various voltage conditions like balanced, unbalanced and non-sinusoidal conditions and dynamic load changes.

Comparison of Control Strategies for Shunt Active Power Filters in Three-Phase Four-Wire Systems

2007 ◽  
Vol 22 (1) ◽  
pp. 229-236 ◽  
Author(s):  
Mara Isabel Milans Montero ◽  
Enrique Romero Cadaval ◽  
Fermn Barrero Gonzalez
Keyword(s):  
Control Strategies ◽  
Active Power ◽  
Active Power Filters ◽  
Power Filters ◽  
Three Phase

Review of Control Methods for Active Power Filters

2013 ◽  
Vol 811 ◽  
pp. 657-660 ◽  
Author(s):  
You Jie Ma ◽  
Hong De Yuan ◽  
Xue Song Zhou
Keyword(s):  
Power System ◽  
Control Strategies ◽  
Active Power Filter ◽  
Active Power ◽  
Power Electronic ◽  
Active Power Filters ◽  
Power Filter ◽  
Power Filters ◽  
Reactive Current ◽  
Contrast Analysis

With the wide application of power electronic equipments in power system, more and more harmonic are poured into the power system, which cause power pollution and make the power quality problem increasingly serious. Active power filter (APF) is an important equipment to compensate harmonic and reactive current in power system. One of the key technologies lies in the real-time and accurate control. The fundamental principles of several control strategies of compensate current were presented, and the respective merit and demerit of these control strategies were pointed out with contrast analysis in this paper. Active power filter will achieve a higher performance and a wider application with the continuous development of the control strategy.

Sign in / Sign up

Export Citation Format

Share Document