文章摘要
陈睿,侯玉强,杨银国,等.面向电网规划的多馈入直流换相失败功率冲击模拟方法[J].电力系统自动化,2017,41(23):103-108. DOI: 10.7500/AEPS20170115001.
CHEN Rui,HOU Yuqiang,YANG Yinguo, et al.Simulation Method of Power Impact Caused by Multi-infeed HVDC Commutation Failure for Power Grid Planning[J].Automation of Electric Power Systems,2017,41(23):103-108. DOI: 10.7500/AEPS20170115001.
面向电网规划的多馈入直流换相失败功率冲击模拟方法
Simulation Method of Power Impact Caused by Multi-infeed HVDC Commutation Failure for Power Grid Planning
DOI:10.7500/AEPS20170115001
关键词: 多馈入直流  换相失败  功率冲击  无功支撑能力
KeyWords: multi-infeed HVDC  commutation failure  power impact  reactive power supporting capability
上网日期:2017-09-19
基金项目:
作者单位E-mail
陈睿 广东电网电力调度控制中心, 广东省广州市 510600  
侯玉强 南瑞集团公司(国网电力科学研究院), 江苏省南京市 211106
国电南瑞科技股份有限公司, 江苏省南京市 211106 
houyuqiang@sgepri.sgcc.com.cn 
杨银国 广东电网电力调度控制中心, 广东省广州市 510600  
王玉 南瑞集团公司(国网电力科学研究院), 江苏省南京市 211106
国电南瑞科技股份有限公司, 江苏省南京市 211106 
 
易杨 广东电网电力调度控制中心, 广东省广州市 510600  
刘福锁 南瑞集团公司(国网电力科学研究院), 江苏省南京市 211106
国电南瑞科技股份有限公司, 江苏省南京市 211106 
 
摘要:
      多直流馈入受端电网的交直流、多直流耦合交互特性显著,由交流故障引发的多回直流换相失败问题已经成为影响受端电网安全稳定运行的关键约束。但在电网规划阶段,因缺乏直流工程的实际参数,相关部门仍采用CIGRE推荐的准稳态简化模型开展电网安全稳定分析计算,获取的直流换相失败对交流电网的功率冲击特性严重偏离实际情况。在综合考虑直流近区无功支撑能力对换相失败恢复的影响,并计及因多馈入直流间交互作用导致的非换相失败直流功率扰动基础上,提出一种提高多馈入直流换相失败对交流电网功率冲击模拟精度的仿真方法。实际多馈入直流受端系统的仿真算例验证了该方法的有效性。
Abstract:
      The coupling interaction of AC-DC and DC-DC in the multi-infeed HVDC receiving-end power grid is so manifest that the commutation failure of multi-infeed HVDC caused by AC power system fault has become the key constraint to the security and stability of the receiving-end power grid. However, during the power grid planning stage, for lack of actual parameters of HVDC project, the concerned departments are still using recommended simplified quasi-steady-state model by CIGRE to carry out the safety and stability simulation analysis. The characteristics of power impact caused by HVDC commutation failure seriously deviate from the actual situation. The influence of reactive power supporting capability to HVDC commutation failure recovery is considered in the near-field, and the non-commutation failure HVDC power perturbation caused by multi-infeed HVDC interaction is taken into account. An improved method for multi-infeed HVDC power grid to accurately simulate the power impact on AC power system is proposed. The simulation results of actual power grid verify the effectiveness of the method.
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