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Active Power Filter (APF) is one of the effective means to eliminate power harmonics and improve power quality, and it has broad application prospects. The shunt APF and its structure and working principle are studied in this paper, and existing circuit topologies of shunt active power filter are introduced. A three-phase three-wire APF system is simulated first with analysis of simulation results,...
Active power filter (APF) is one of the effective means for harmonic current compensation in power grid. This paper focuses theoretical topics on a three-phase four-wire shunt active power filter (SAPF) system, covers operation principle, harmonic current detection, structure of main circuit, control of the DC voltage and compensating current. The overall system has been modeled using MATLAB/Simulink,...
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