扎鲁特—青州特高压直流输电工程投运后东北电网的稳定特性及控制措施研究Stability Characteristics and Control Measures of Northeast Power Grid Integrated With Zhalute-Qingzhou UHVDC Transmission Project
于强;孙华东;仲悟之;顾卓远;贾俊川;易俊;
摘要(Abstract):
扎鲁特—青州特高压直流工程投运后,东北电网将成为我国又一高比例跨区直流送端电网。该文基于东北电网风电高渗透以及季节性供热需求约束的运行现状,分析了扎鲁特—青州直流工程投运对电网稳定特性的影响。针对直流闭锁故障,提出了适应东北电网实际情况的优化切机控制方案,并对比分析不同切机方案对电网稳态压升的影响。在此基础上探讨基于直流紧急支援的协调控制策略,减少安控机组切除量,降低电网稳态压升水平。该文所提安控策略可用于指导电网的实际运行,提升直流外送能力以及风电消纳能力。
关键词(KeyWords): 高比例直流;稳定特性;风电高渗透;协调控制
基金项目(Foundation):
作者(Author): 于强;孙华东;仲悟之;顾卓远;贾俊川;易俊;
Email:
DOI: 10.13335/j.1000-3673.pst.2017.2931
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