新能源船舶并网逆变器电网支撑协调控制

doi:10.19595/j.cnki.1000-6753.tces.181860

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Abstract New energy ships have developed rapidly in recent years, and grid-connected inverters are their key equipment. Such inverter can work individually or cooperatively with diesel generator to support the ship power station voltage and frequency. This paper proposed the inverter control strategy under isolated state, grid-tied state and the transient switching state, to solve the problem that ship grid voltage and frequency are easily affected by load variation. Firstly, the grid voltage and inverter current double closed loop control is employed under isolated state, and the full load current is feedforwarded. Secondly, the power control is employed under grid-tied state, and the dynamic component of load current extracted by delicately designed filter is feedforwarded. Thirdly, the state locking method is utilized under switching process between these two states to avoid the instability caused by parameters emergent changes. The proposed control strategy takes full advantage of the accessible load current in ship power station, which improves the grid reliability effectively.

Key words： Ship power grid inverter control reliability

Received: 05 December 2018 Published: 29 May 2019

PACS:

TM464

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	Articles by authors
	Yang Rongfeng
	Yu Yannan
	Yu Wanneng
	Wang Guolin
	Wu Defeng

Cite this article:

Yang Rongfeng,Yu Yannan,Yu Wanneng等. New Energy Ship Grid-Connected Inverter Grid Support and Cooperative Control[J]. Transactions of China Electrotechnical Society, 2019, 34(10): 2141-2154.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181860 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I10/2141

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