Fuzzy Pre-Compensated PI Control of Active Filters

다국어 초록 (Multilingual Abstract)

This paper deals with a new and improved control technique for shunt active filters (AF) used for compensating unwanted harmonic currents injected in the mains due to nonlinear varying loads. This work is motivated by the need to find a permanent solution to the rigorous hit and trial method for evaluating system parameters in an indirect control of AF. A fuzzy pre-compensated PI (Proportional-Integral) controller is used to fuzzify the reference DC voltage of AF to the controller input so that the overshoots and undershoots in its DC link voltage are minimized and the settling time is improved. A three-phase diode rectifier with R-L (Resistive-Inductive) load is used as a non-linear load to study the effectiveness of the proposed controller of the AF. Robustness to filter parameter variations, insensitivity to controller parameter variations, and transient response has been taken as performance evaluation parameters. The results are shown through simulations in Matlab using power system block sets to demonstrate the capability of the proposed controller of the AF.

목차 (Table of Contents)

• ABSTRACT
• 1. Introduction
• 2. Indirect Current Control
• 3. Fuzzy Pre-Compensated PI Controller for Active Filter
• 4. Simulation Results
• 5. Conclusion
• Appendix
• References

참고문헌 (Reference)

1 M. Marinelli, "“Improved control of active power filters using genetic algorithms”" 1447-1451, 2004

2 Jong-Hwan Kim, "“Fuzzy Precompensation of PID controllers”" 183-188, 1993

3 A. Chandra, "“An Improved Control Algorithm of Shunt Active Filter for Voltage Regulation, Harmonic Elimination, Power Factor Correction, and Balancing of Nonlinear Loads”" 15 (15): 2000

4 B. Singh, "“A new contro approach to three phase active filter for harmonics and reactive power compensation,”" 13 : 133-138, 1998

5 B. Singh, "filter with sliding mode control" 564-568, 1997

6 H.Akagi, ""Instantaneous reactive power compensators comprising switching devices without energy storage components,”" IA-20 : 625-630, 1984

7 Bhim Singh, ""DSP based implementation of fuzzy PI speed controller for vector controlled PMSM drive”" 1-6, 2006

8 M El-Habrou, ""A new control technique for active power filters using a combined genetic algorithm/conventional analysis”" 49 (49): 2002