基于一种动态等值新方法的直流功率调制控制策略

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Abstract A new supplementary control strategy for AC/DC power system is presented. The dynamic response factor is utilized as a new coefficient for dynamic equivalence to enhance the accuracy of dynamic equivalence. A new dynamic stability index is defined to divide critical cluster and remaining cluster of the coherent generators. The detailed models of critical cluster and the simplified models of remaining cluster are applied in the equivalent system. Utilizing the equivalent strategy,a rational nonlinear optimal supplementary control strategy is proposed for the AC/DC system. The control strategy only requires the critical clusters#x02019; speeds and angles as modulation signals,which ensures the control effect and reduces the difficulty of control strategy implementation. The simulation supports the feasibility and validity of the proposed control strategy.

Key words： Dynamic equivalence dynamic response factor dynamic stability index supplemen- tary control strategy full state feedback

Received: 07 June 2011 Published: 11 December 2013

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TM77

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	Chen Houhe
	Jiang Tao
	Li Guoqing

Cite this article:

Chen Houhe,Jiang Tao,Li Guoqing. HVDC Modulations Using New Dynamic Equivalence Method[J]. Transactions of China Electrotechnical Society, 2013, 28(7): 192-200.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I7/192

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