含多端柔性直流的交直流电力系统静态电压稳定域构建方法

doi:10.19595/j.cnki.1000-6753.tces.210281

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Abstract To address the voltage stability assessment of hybrid AC/DC power grid with high permeation of renewable energy, a voltage stability region (SVSR) of the hybrid AC/DC power grid with inclusion of voltage sourced converter based multi-terminal high voltage direct current (VSC-MTDC) is developed in this work. In the light of the topological characteristics of SVSR boundary (SVSRB), a predictor-corrector model is proposed to explore the SVSRB points with regarding the control strategy switching of the VSC-MTDC converter station. The continuation power flow (CPF) is employed to explore the first SVSRB point on the SVSRB, then rest SVSRB points on the SVSRB are explored by the proposed predictor-corrector model with the adjacent explored SVSRB point as the initial point. During this procedure, if the operational parameters of the converter station violate their limits, the control strategy switching of the converter station is switched following the proposed switching condition, which significantly enhance the computational accuracy and efficiency of the SVSRB. The performance of the developed approach is evaluated by the modified IEEE 5 and IEEE 118 test systems with the VSC-MTDC. The results confirm that the proposed predictor-corrector approach exhibits a great performance in the computational accuracy and efficiency for forming the SVSR of the hybrid AC/DC power grid.

Key words： Hybrid AC/DC power system voltage sourced converter based multi-terminal high voltage direct current (VSC-MTDC) static voltage stability region static voltage stability region boundary control strategy continuation power flow predictor-corrector

Received: 03 March 2021

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TM712

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	Jiang Tao
	Li Xue
	Li Guoqing
	Li Xiaohui
	Chen Houhe

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Jiang Tao,Li Xue,Li Guoqing等. A Predictor-Corrector Algorithm for Forming Voltage Stability Region of Hybrid AC/DC Power Grid with Inclusion of VSC-MTDC[J]. Transactions of China Electrotechnical Society, 2022, 37(7): 1746-1759.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210281 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I7/1746

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