《单周期控制PFC变换器的输入电流畸变研究》.pdf

第 31 卷 第 12 期 中 国 电 机 工 程 学 报 Vol.31 No.12 Apr.25, 2011 2011 年 4 月 25 日 Proceedings of the CSEE ©2011 Chin.Soc.for Elec.Eng. 51 文章编号：0258-8013 (2011) 12-0051-06 中图分类号：TM 46 文献标志码：A 学科分类号：470·40 单周期控制 PFC 变换器的输入电流畸变研究 江涛，毛鹏，谢少军 (南京航空航天大学自动化学院，江苏省 南京市 210016) Distortion Issue on Input Current of OCC-PFC Converter and Its Solution JIANG Tao, MAO Peng, XIE Shaojun (College of Automation Engineering, Nanjing University of Aeronautics Astronautics, Nanjing 210016, Jiangsu Province, China) ABSTRACT: The influence on input current harmonics by 决电网谐波污染，有源滤波器(active power filter， single-edge modulation of conventional one-cycle control in APF)和功率因数校正(power factor correction，PFC) single-phase PFC converters was analyzed. The relation [1-17] [18] 技术被大量应用 。单周期控制 PFC 变换器无 between low-frequency odd harmonics of the inductance 需产生输入电流基准，因而不需要使用乘法器和采 current and modulation scheme was revealed. Based on the 样输入电压，简化了控制结构，降低了经济成本， analyses, bi-edge modulation with triangular-wave as carrier [1,10-17] was proposed. The inductance current is modulated both at 在中小功率场合都得到了广泛研究和应用 。 leading- and trailing-edge in a switching cycle. Consequently, 从现有研究看，单周期控制 PFC 变换器采用的 the low-frequency odd harmonics of inductance current is 都是单边调制方式，即在时钟信号到来时开通开关 reduced, and the quality of the input current is improved. The 管(下降沿调制(trailing-edge modulation))或关断开 validity of the theoretical a