摘要
分布式光伏出力存在较强间歇性、波动性和不确定性,当其大规模并网时将对电网潮流分布及电压分布产生较大影响,引起配电网运行风险。开展了大规模光伏发电接入配电网的风险评估方法及预控措施研究。以节点电压越限和线路潮流越限为风险评估指标,建立了配电网运行风险评估模型,给出了配网风险评估的具体实现步骤,提出针对性的风险应对措施。给出了所提风险评估方法的算例,并通过仿真结果验证了风险应对措施的有效性。
Due to the severe intermittence, volatility and uncertainty of the output power of distributed photovoltaic, the integration of large scale photovoltaics (PVs) will have a great influence on the power flow and node voltage of a distribution network, causing the operation risk of distribution network. This paper researches the risk assessment method and countermeasures for distribution networks with large-scale PV accessing. Based on the risk assessment indexes of node voltage limit violation and line power flow limit violation, a distribution network operation risk assessment model is established, the specific implementation steps of the risk assessment method are presented, and specific risk countermeasures are proposed. Examples of the risk assessment method proposed in this paper is illustrated, and the effectiveness of the risk countermeasures are verified by simulation results.
作者
乐健
朱江峰
孙旻
曾伟
Le Jian;Zhu Jiangfeng;Sun Min;Zeng Wei(School of Electrical Engineering,Wuhan University,Wuhan 430072,China;Jiangxi Electric Power Research Institute,Nanchang 330006,China)
出处
《电测与仪表》
北大核心
2019年第14期28-33,共6页
Electrical Measurement & Instrumentation
基金
国家电网有限公司总部项目(52182017000W)
关键词
分布式光伏
电压越限
潮流越限
风险评估
应对措施
distributed photovoltaic
voltage limit violation
power flow limit violation
risk assessment
countermeasures
作者简介
乐健(1975-),男,湖北黄冈人,博士,副教授,主要从事智能电网运行与控制技术研究;朱江峰(1992-),男,湖北黄冈人,硕士研究生,主要从事智能电网运行与控制技术研究。Email:420088786@qq.com;孙旻(1970-),男,江西南昌人,高级工程师,主要从事配电技术研究;曾伟(1979-),男,重庆铜梁人,工程师,主要从事微电网技术研究.
