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능동전력필터를 위한 새로운 전류제어 델타변조방식에 관한 연구
최규하,김한성,강병희 건국대학교 1996 學術誌 Vol.40 No.2
Advances of Power Electronics in industrial domains lead to continuous increase of harmonics on net-works. To solve these problems, Active Power Filtering(A.P.F.) concept has been developed for several years. This paper describes an A.P.F. comprising Current Source Inverter (CSI) by Current-Controlled Delta-Modulation Technique. This Concept is applied to a new current source Sigma-Delta Modulation(SDM) inverter for A.P.F. As associating this concept with current source inverter(CSI) APF, there are several advantages. Most of all, this controller can be easily implemented and has a satisfactory compensating performance. In addition, inverter output fitter, the capacitor and inductance size are considerably reduced. The controller is implemented by analog circuit and one-chip micro-processor(TMS370C756). As the typical load which generates the harmonics, a 3-phase diode rectifier is used, The proposed scheme is investigated by digital simulation(ACSL). Also, the theoretical results is verified by analog & digital experiment.