基于电力弹簧的低压台区用户侧电压调节方法

doi:10.19595/j.cnki.1000-6753.tces.190587

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Abstract The traditional ES topological structure cannot effectively solve the problem of large range fluctuation of user terminal voltage caused by photovoltaic power generation in low-voltage transformer areas. This paper proposes a ES topological structure to ensure that the user terminal load operates at the rated voltage. The principle of the ES topological structure in capacitive and inductive mode is described by phasor graph method. The closed-loop voltage control strategy based on PR controller is proposed to realize the voltage stabilizing function of the ES. The determination conditions and the corresponding steady-state operation interval of the new ES topology under constant voltage and reduction voltage mode are calculated quantitatively, and used as the basis for the parameter design of the experimental device. Finally, experiments have verified the feasibility and effectiveness of the new ES topology for voltage regulation of the load terminal in daytime and at night.

Key words： Electric spring low voltage distribution network reactive power compensation voltage limit residential photovoltaics

Received: 15 May 2019

PACS:

TM464

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	Articles by authors
	Yan Xiangwu
	Jia Jiaoxin
	Wang Desheng
	Qin Benshuang

Cite this article:

Yan Xiangwu,Jia Jiaoxin,Wang Desheng等. User-Side Voltage Regulation Method for Transformer Areas Based on Electric Spring[J]. Transactions of China Electrotechnical Society, 2020, 35(12): 2623-2631.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190587 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I12/2623

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