Abstract：According to the traditional repetitive control method of parallel active power filter, an adaptive detection method of load harmonic currents and an adaptive signal generator for repetitive control are proposed in this paper. Based on the instantaneous reactive power theory, the digital detection of harmonic currents in the d-q coordinate is achieved and the adaptive sampling number kmax in every fundamental cycle is proposed to eliminate the effect of grid voltage frequency variation. The proportional control and repetitive control algorithm are adopted in parallel to correct the output current waveform. Experimental results have verified the effectiveness of this adaptive digital repetitive control method.
贾要勤, 王晓滨, 杨强. 并联有源电力滤波器的自适应重复控制[J]. 电工技术学报, 2011, 26(10): 118-122.
Jia Yaoqin, Wang Xiaobin, Yang Qiang. Adaptive Repetitive Control of Parallel Active Power Filter. Transactions of China Electrotechnical Society, 2011, 26(10): 118-122.
[1] 耿攀. 三相三线并联型有源电力滤波器设计与控 制[D]. 武汉: 华中科技大学, 2006. [2] Peng F Z, Kohata M, Akagi H. Compensation characteristics of shunt and series active filter[C]. Proceedings of 1992 Chinese-Japanse Power Electronics Conf, Beijing, China, 1992: 381-387. [3] 王兆安, 杨君, 刘进军. 谐波抑制和无功功率补 偿[M]. 北京: 机械工业出版社, 1999. [4] Fujita H, Akagi H. An approach to harmonic current- free AC/DC power conversion for large industrial loads: the integration of a series active filter with a double-series diode rectifier[J]. IEEE Transactions on Industrial Applications, 1997, 33(5): 123-124. [5] 熊健, 康勇, 段善旭, 等. 三相电压型PWM整流器控制技术研究[J]. 电力电子技术, 1999(2): 5-7. [6] 耿攀, 戴珂, 魏学良, 等. 三相并联有源电力滤波器电流重复控制[J]. 电工技术学报, 2007, 22(2): 127-131. [7] 贾要勤. 风力发电系统的H∞鲁棒控制研究[D]. 西安: 西安交通大学, 2004. [8] 中野道雄, 等. 重复控制[M]. 长沙: 中南工业大学出版社, 1994. [9] 方昕. 并联型有源电力滤波器的电流数字控制技 术[D]. 武汉: 华中科技大学, 2006.
2011, Vol. 26 
