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STATCOM integration into a DFIG-based wind park for reactive power compensation and its impact on wind park high voltage ride-through capability
Electric Power Systems Research ( IF 3.9 ) Pub Date : 2021-05-29 , DOI: 10.1016/j.epsr.2021.107368
Ulas Karaagac , Ilhan Kocar , Jean Mahseredjian , Lijun Cai , Zahid Javid

This paper presents static synchronous compensator (STATCOM) integration into a doubly-fed induction generator (DFIG) based wind park (WP), analyses the impact of STATCOM on the WP high voltage ride-through (HVRT) capability, and proposes a transient function for the STATCOM to improve the WP HVRT capability. An actual WP is adopted as a test system. The STATCOM size is selected considering the grid code requirement for power factor control, and various wind turbine (WT) and medium voltage (MV) feeder outage scenarios. The WP HVRT capability is assessed with electromagnetic transient (EMT) simulations by analyzing the responses to a parametric voltage waveform. The external system is represented by a Thevenin equivalent. The pre-described voltage waveforms are applied to the Thevenin source in order to assess the conformity of the HVRT capability to Hydro-Quebec specifications. The WP simulation model includes all details regarding collector grid and overvoltage protection. The simulation results demonstrate that, STATCOM usage provides a noticeable improvement in HVRT capability of the WP, especially with the proposed transient function.



中文翻译:

STATCOM 集成到基于 DFIG 的风电场进行无功补偿及其对风电场高压穿越能力的影响

本文将静态同步补偿器 (STATCOM) 集成到基于双馈感应发电机 (DFIG) 的风电场 (WP) 中,分析了 STATCOM 对 WP 高压穿越 (HVRT) 能力的影响,并提出了瞬态函数用于 STATCOM 提高 WP HVRT 能力。实际的WP被用作测试系统。STATCOM 大小的选择考虑了功率因数控制的电网规范要求,以及各种风力涡轮机 (WT) 和中压 (MV) 馈线断电情况。通过分析对参数电压波形的响应,使用电磁瞬态 (EMT) 模拟来评估 WP HVRT 能力。外部系统由戴维南等价物表示。将预先描述的电压波形应用于戴维宁电源,以评估 HVRT 功能是否符合 Hydro-Quebec 规范。WP 仿真模型包括有关集电网络和过压保护的所有详细信息。仿真结果表明,STATCOM的使用显着改善了WP的HVRT功能,尤其是采用了拟议的瞬态功能。

更新日期:2021-05-30
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