杨帆,马立新.改进的并联型H桥APF控制策略研究[J].电子测量技术,2019,42(10):58-62
改进的并联型H桥APF控制策略研究
Research on improved parallel H-bridge active filter control strategy
  
DOI:
中文关键词:  H桥有源滤波器  无差拍控制  自适应谐波检测  CPS-SPWM
英文关键词:H-bridge active filter  deadbeat control  adaptive harmonic detection  CPS-SPWM
基金项目:上海市张江国家自主创新重点项目(201310-PI-B2-008)资助
作者单位
杨帆 上海理工大学 机械工程学院 上海 200093 
马立新 上海理工大学 机械工程学院 上海 200093 
AuthorInstitution
Yang Fan School of optical and electronic information and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China 
Ma Lixin School of optical and electronic information and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China 
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中文摘要:
      为了提高并联型H桥有源滤波器的工作效率,当电源电压失真时,更短的时间内计算出更精确的补偿电流,提出了一种自适应谐波检测算法和载波相移正弦脉冲宽度调制技术(CPS-SPWM)相结合的控制策略。首先通过自适应谐波检测算法快速准确地计算出参考补偿电流,为无差拍控制提供精确的补偿指令,然后采用外环电压PI控制实现桥臂电压稳定,并采用内环均压比例控制实现桥臂上子模块电容电压相同,最后通过CPS-SPWM为有源滤波器提供更准确的调制波信号。通过仿真结果,证明了改进的控制策略比传统方法具有更高的稳定性和准确率。
英文摘要:
      In order to improve the working efficiency of the parallel H-bridge active filter, when the power supply voltage is distorted, a more accurate harmonic compensation current is calculated in a shorter time, and an accurate compensation command is provided for the deadbeat control. A control strategy combining adaptive harmonic detection algorithm with carrier phase shift sinusoidal pulse width modulation (CPS-SPWM). Firstly, the reference compensation current is calculated quickly and accurately by the adaptive harmonic detection algorithm. Then, the bridge voltage stability is realized by the outer loop voltage PI control, and the internal loop equalization proportional control is used to realize the same capacitor voltage of the sub-module on the bridge arm. CPS-SPWM provides a more accurate modulated wave signal for active filters. Through simulation experiments, it is verified that the control strategy has higher stability and accuracy than traditional methods.
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