摘要
基于完全依赖准确的潮流计算对实际系统中分布式电源接入点的电压计算繁琐,不利于现场运行人员对分布式电源接入点进行电压幅值的估算,提出了接入点电压峰值和运行电压两种估算方法,并分别针对单个和多个分布式电源接入给出了计算方法。所提估算方法无需事先获取馈线的负荷水平和分布情况,计算简便。仿真结果表明了提出的电压估算方法的有效性和实用性,可为分布式电源接入的配电系统电压估算提供理论和技术支持。
It costs too much time to calculate the voltage of connection point if depending entirely on the accurate power flow calculation method,and it is not applicable for field operators to estimate voltage magnitude of connection point of DGs.To adress the problem,a novel voltage estimation method was proposed which includes peak voltage and operating voltage.And the estimation methods and formula for single and multiple DGs were provided.The advantage of the proposed method is its simplicity without the load level of distribution network.The simulation results show that the proposed method is effective and practicable and it can be a powerful theoretical and technology support for voltage estimation of distribution network with DGs.
出处
《电器与能效管理技术》
2018年第2期43-50,共8页
Electrical & Energy Management Technology
基金
国家自然科学基金资助项目(51707109)
中国国家留学基金资助
国网山东省电力公司科技项目资助(2016A-09)
关键词
分布式电源
电压估算
配电系统
估算方法
distributed generator
voltage estimation
distribution network
estimation method
