A Simple Control Algorithm for Three-Phase Shunt Active Power Filter for Reactive Power and Current Harmonic Compensation

نویسندگان

  • P. V. Ram Kumar
  • Surya Kalavathi
چکیده

Power quality issues are becoming a major concern of today's power system engineers. Shunt active power filter (SAPF) is one of the effective means for harmonic current compensation in electrical power system. The performance and dynamic characteristics of a three-phase SAPF with a simple control algorithm is presented and analyzed in this paper. This algorithm operates at fixed switching frequency and compensates the reactive power and the current harmonics of nonlinear loads. Reactive power compensation is achieved without sensing and computing the reactive component of the load current, thus simplifying the control implementation. Current harmonic compensation is done in time domain. The proposed controller is compared with the conventional proportional-integral (PI) controller method on compensating reactive power and harmonic currents of the load. The simulations of these two schemes are carried out in Matlab/Simulink.

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تاریخ انتشار 2013