Research on Temporary Overvoltage in PMSG-based Wind Power Transmission System in case of Load Rejection

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2020-06-01 DOI:10.1109/ACPEE48638.2020.9136353

Daye Yang, Z. Xiang, Ruihua Song, L. Shen, Peipeng Zhou, Yue Yang

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引用次数: 1

Abstract

In order to evaluate the temporary overvoltage level of the system in case of load rejection of the wind power transmission system based on permanent magnet synchronous generator (PMSG) , it is necessary to clarify the temporary overvoltage characteristics and its influencing factors after the fault. Through the mathematical analysis of the control and protection strategies of PMSG-based wind turbine, it is known that the DC rated voltage of the wind turbine, the modulation ratio of the grid side converter ( GSC) , the DC bus overvoltage protection setting, the wind turbine overvoltage protection setting and its action strategy are the main factors affecting the temporary overvoltage of the system. In addition, the type of reactive power compensation and configuration are also the factors influencing the temporary overvoltage of the system. PSCAD / EMTDC is used to verify the above factors. The results show that the relative control and protection strategies of PMSG- based wind turbine should be considered in the calculation of the temporary overvoltage.

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甩负荷情况下基于pmsg的风电传输系统暂态过电压研究

为了评估永磁同步发电机风力输电系统在甩负荷情况下系统的临时过电压水平，有必要明确故障后的临时过电压特征及其影响因素。通过对基于pmsg的风力发电机组控制与保护策略的数学分析，可知风力发电机组直流额定电压、电网侧变流器(GSC)调制比、直流母线过电压保护整定、风力发电机组过电压保护整定及其动作策略是影响系统暂过电压的主要因素。此外，无功补偿方式和配置也是影响系统暂过电压的因素。PSCAD / EMTDC用于验证上述因素。结果表明，在计算暂态过电压时，应考虑基于PMSG的风力机的相对控制和保护策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)

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