| 有源电力滤波器闭环控制算法研究 |
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| 引用本文： | 马永健,徐政,沈沉. 有源电力滤波器闭环控制算法研究[J]. 电工技术学报, 2006, 21(2): 73-78 |
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| 作者姓名： | 马永健 徐政 沈沉 |
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| 作者单位： | 1. 清华大学深圳研究生院电力系统国家重点实验室深圳研究室,深圳,518055
2. 清华大学电力系统国家重点实验室,北京,100084 |
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| 摘 要： | 有源滤波器是电力系统谐波补偿的新型解决方案.现有的有源滤波器多采用开环控制算法,谐波补偿性能受参数不确定和干扰的影响较大.在讨论了延时稳定性等并联型有源电力滤波器闭环控制算法设计的关键技术基础上,扩展了RDFT(Real Discrete Fourier Transform)组合选频滤波器并证明了其数学性质,提出了基于此算法与重复控制原理的闭环无差控制算法.PSCAD/EMTDC仿真实验表明,该算法可以实现对多个指定频率的谐波进行稳态无差的补偿.
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| 关 键 词： | 有源滤波器 闭环控制 重复控制 零稳态误差补偿 选频滤波器 |
| 修稿时间： | 2005-02-17 |
Studies of Closed-Loop Control Strategy of Active Power Filters |
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| Ma Yongjian,Xu Zheng,Shen Chen. Studies of Closed-Loop Control Strategy of Active Power Filters[J]. Transactions of China Electrotechnical Society, 2006, 21(2): 73-78 |
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| Authors: | Ma Yongjian Xu Zheng Shen Chen |
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| Affiliation: | 1. Graduate School of Tsinghua University in Shenzhen Shenzhen 518055 China 2. Tsinghua University Beijing 100084 China |
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| Abstract: | Active power filtering (APF) technology is a novel solution on power system harmonic compensation. Open-loop control strategies are widely used in APFs these years, while the performance would be influenced heavily by disturbances as well as parameter uncertainty. In this paper, key problems in shunt APF close-loop controller design such as delay-oriented stability problem are discussed, and characteristics of RDFT selective filters are investigated. A novel control algorithm based on RDFT selective filter and repetitive control is developed. Simulations on PSCAD/EMTDC confirm the theoretical expectations. |
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| Keywords: | Active power filter close-loop control repetitive control zero steady-state error compensation selective filter |
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