重复控制在链式SVG中的应用 |
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引用本文: | 张广龙,陈丽兵.重复控制在链式SVG中的应用[J].电力学报,2014(5):404-409. |
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作者姓名: | 张广龙 陈丽兵 |
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作者单位: | 山东电力工程咨询院有限公司;中国矿业大学; |
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摘 要: | 作为当前最先进的无功补偿装置,静止无功发生器(Static Var Generator,SVG)在补偿无功的同时,还可以同时实现谐波补偿功能。SVG进行综合补偿时,传统的PI控制很难消除稳态误差,为此,将重复控制技术应用于SVG的指令电流跟踪控制,提出一种包含重复控制器和PI控制器的复合控制器。这种复合控制器兼具PI控制器和重复控制器的优点,具有很好的动态效果及稳态跟踪精度。仿真和实验验证证明了该方法的有效性。
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关 键 词: | 静止无功发生器 无功补偿 谐波补偿 比例积 分控制 重复控制 |
Application of Repetitive Control Technique in Cascaded SVG |
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Affiliation: | ZHANG Guang-long, CHEN Li-bing( 1. Shandong Electric Power Engineering Consulting Institute CORR, LTD, Jinan 250013, China; 2. China University of Mining and Technology, Xuzhou 221008, China) |
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Abstract: | As the most advanced equipment for reactive power compensation, the static vat generator (SVG) can simul- taneously realize the reactive power compensation and the har- monic compensation. It is difficult to eliminate steady-state error by using traditional PI controller when the SVG needs to provide synthetic compensation ability. To solve this problem, the repet- itive control technique is used to realize the tracking control of instruction currents. The repetitive controller and PI controller are used together to form a composite controller. As a result, the high tracking accuracy and the rapid response character are inte- grated in the advanced controller. The results of simulation and practical application prove the validity of the proposed strategy. |
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Keywords: | static var generator reactive power compen-sation harmonic compensation proportion-integral (PI) con-trol repetitive control |
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