并联型多重化三相四线有源电力滤波器综合控制策略研究
为了提高大功率并联型有源电力滤波器的控制性能，谐波检测采用特定次谐波电流检测算法，能分别检测不对称谐波的正、负、零序分量，提高谐波检测的准确性和实时性。提出一种基于LCL滤波的多重化有源电力滤波器双闭环控制策略，该控制策略解决了变流器多重化主电路中的环流问题。采用LCL输出滤波器，不仅能有效地滤除主电路高频开关纹波，而且与传统的L滤波器相比，大大减少了电感量、提高系统的动态跟踪性能，并节约了成本。最后，搭建了系统仿真模型和实验样机，结果表明上述控制策略的正确性和可行性，系统谐波治理效果好。...
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| Published in | 电力系统保护与控制 Vol. 40; no. 23; pp. 103 - 108 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
北京交通大学电气工程学院,北京 100044%清华大学电力系统国家重点实验室,北京 100084
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
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| Summary: | 为了提高大功率并联型有源电力滤波器的控制性能，谐波检测采用特定次谐波电流检测算法，能分别检测不对称谐波的正、负、零序分量，提高谐波检测的准确性和实时性。提出一种基于LCL滤波的多重化有源电力滤波器双闭环控制策略，该控制策略解决了变流器多重化主电路中的环流问题。采用LCL输出滤波器，不仅能有效地滤除主电路高频开关纹波，而且与传统的L滤波器相比，大大减少了电感量、提高系统的动态跟踪性能，并节约了成本。最后，搭建了系统仿真模型和实验样机，结果表明上述控制策略的正确性和可行性，系统谐波治理效果好。 |
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| Bibliography: | shunt active power filter; dual closed-loop control; LCL-filter; circulating current restrain; switching harmonics YANG Xiao-li, GE Bao-ming, JIANG Xin-jian （1. School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. State Key Lab of Power Systems, Dept of Electrical Engineering, Tsinghua University, Beijing 100084, China） In order to improve the control effect of high-power shunt active power filter, the paper uses detection algorithm for selective harmonic current in three-phase four-wire system. The algorithm can detect positive, negative and zero phase-sequence component of the random harmonic current, and can improve the accuracy and real-time of the harmonic current detection. At the same time, the paper presents a dual closed-loop control strategy to suppress the circulating current brought about by the multiple structure of the main circuit. The grid side filters use LCL-filter. Compared to traditional L-filter, the LCL-filter has better filter performance not only in ef |
| ISSN: | 1674-3415 |