基于光伏电站暂态特性的自适应暂稳控制方法

doi:10.19595/j.cnki.1000-6753.tces.191748

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Abstract The world-wide application of photovoltaic (PV) plants is a promising solution to the energy crisis. However, PV plants have the problem of transient stability due to the lack of dynamic moment of inertia. This paper, based on the transient stability mechanism, devises an adaptive control scheme to achieve transient stability enhancement for PV plants. The mechanism shows that the active droop factor is negatively associated with the transient stability whereas the reactive droop factor is positively associated. The transient stability enhancement is implemented by increasing the reactive droop factor and reducing the active droop factor to raise the power angle curve. The proposed control scheme adjusts the droop factors dynamically during the transient events through detecting the real-time electrical quantities. The control scheme advances in a designed activation module which is able to judge if there exist transient events. A series of simulation cases demonstrate the effectiveness of the control scheme in different transient events. Simulation results show that the control scheme adjusts droop factors adaptively and possesses better transient stability than the original control.

Key words： Transient stability enhancement photovoltaic plants adaptive control scheme droop factors dynamic adjust

Received: 13 December 2019

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TM773

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	Articles by authors
	Yu Moduo
	Huang Wentao
	Tai Nengling
	Ma Zhoujun
	He Yangyang

Cite this article:

Yu Moduo,Huang Wentao,Tai Nengling等. Transient Stability Enhancement with an Adaptive Control Scheme for Photovoltaic Plants[J]. Transactions of China Electrotechnical Society, 2020, 35(zk2): 512-522.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191748 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/Izk2/512

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