发电用微型燃气轮机三相四桥臂逆变器解耦控制

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Abstract In the microturbine power system, decoupling control strategy of three-phase four-leg inverter is proposed based on the internal impedance transformation. The inverter and its output filter are regarded as an integrated inverter power supply to modeling and control as a whole unit. After equivalent transformation, the impedance of zero-leg is transformed into zero and the others are reduced to a lower equivalent impedance value. The three-phase four-leg inverter is decoupled into three independent single-phase inverters. In this scheme, an amplitude-phase multi-loop system is applied. Advantages of the four-leg inverter structure are exerted particularly for unbalanced and non- linear load. The simulation and experiment results show that the control method is correct and effective.

Key words： Three-phase four-leg inverter amplitude phase control internal impedance transformation decoupling control

Received: 01 February 2010 Published: 19 March 2014

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TM464

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	Yan Shijie
	Wang Xu
	Chen Hongzhi

Cite this article:

Yan Shijie,Wang Xu,Chen Hongzhi. Decoupling Control of Three-Phase Four-Leg Inverter in Micro-Turbine Power Generation[J]. Transactions of China Electrotechnical Society, 2012, 27(1): 69-73.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I1/69

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