电气传动2018，Vol.48Issue(3)：22-28,7.DOI:10.19457/j.1001-2095.20180305
基于APF的简化调制算法及中点平衡策略研究
Simplified PWM Algorithm and Neutral-point Potential Balancing Strategy Based on Active Power Filter
摘要
Abstract
SVPWM is widely used for its high quality output voltage and high usage of DC-bus voltage.However, the complexity limits its further applications. In order to overcome the disadvantages of the traditional SVPWM schemes,a simplified three-level PWM strategy based on terminal voltage direct synthesis was studied.A novel voltage second balance rule was obtained by setting a stronger constrain for traditional SVWPM voltage second rule.The new PWM strategy simplified the computational process and could reduce the calculation time.Besides,in order to solve the inherent problem of neutral-point potential offset for three-level APF,a new simplified strategy was proposed.Finally, the validity and correctness of the proposed strategy is verified by experiments.关键词
三电平/空间矢量脉宽调制/伏秒平衡原则/中点电位平衡/有源电力滤波器Key words
three-level/space vector pulse width modulation(SVPWM)/voltage second balance rule/neutral-point potential balance/active power filter(APF)分类
信息技术与安全科学引用本文复制引用
李飞,何凤有,叶宗彬,张晓..基于APF的简化调制算法及中点平衡策略研究[J].电气传动,2018,48(3):22-28,7.基金项目
国家重点研发计划课题资助项目(2016YFC0600906) （2016YFC0600906）
江苏省自然科学基金青年基金资助项目(BK20140204) （BK20140204）
