一种低成本动态无功补偿装置及两级协同优化运行方法

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Abstract To realize energy-saving in distribution grid with low cost, this paper proposes a hybrid var compensator (HVC). The new topology consists of a small capacity DSTATCOM and multi-groups TSC. They work together to realize dynamic var compensation with low cost. Based on the principle analysis of HVC, the control methods of HVC are processed. A compound control strategy based on expert decision is proposed to make sure that the HVC can compensate reactive power with high speed and large capacity. Simultaneously a study about how to optimize when multi-groups HVCs are working is processed in this paper, it proposes by using a new arithmetic called two level coordinated optimization compensation to obtain the optimal reactive power quantity required by any compensation equipment, so as to fulfill the global optimization energy-saving. A dynamic energy-saving system with lost cost has been developed for a melt-factory in northern China, experimental results show that compared to the traditional reactive power compensation equipment, this system can obtain a better effect for energy-saving.

Key words： Dynamic var compensation fuzzy-PI expert judgment collaborative optimization low cost

Received: 28 May 2008 Published: 18 February 2014

PACS:	TM13
	TM76

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	Shuai Zhikang
	Luo An
	Wu Chuanping

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Shuai Zhikang,Luo An,Wu Chuanping. A Novel Low-Cost Dynamic Var Compensator and Two-Level Collaborative Optimization Method[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 162-170.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I12/162

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