摘要
孤岛微电网由于缺乏主网支撑,在电源及负荷具有不确定性的情况下,其频率与电压易出现波动。概率潮流计算是用于分析系统运行状态不确定性的有效工具,本文提出一种计及微电源调节死区的孤岛微电网概率潮流计算方法,体现了微电源调节死区对微电网运行状态的影响,提出了计及调节死区的潮流求解步骤,并基于拉丁超立方采样方法计算孤岛微电网的概率潮流。算例结果表明,本文方法能够反映微电源的调节死区对潮流的影响情况,同时具有较为满意的精度与计算速度,可应用于在线分析。
Frequency and voltage in islanded microgrids tend to fluctuate due to uncertainties in power supply and load without main grid support.Probabilistic load flow calculation is an effective tool for analyzing the uncertainty of operation state.This paper proposes a probabilistic power flow calculation method for islanded microgrid considering the regulation dead zone of micro-sources.It reflects the influence of the regulation dead zone on the operation state of the microgrid,and the steps to calculate the power flow with the dead zone are proposed.Then the probabilistic power flow of the islanded microgrid is calculated based on the Latin Hypercube Sampling method.The case study shows that the proposed method can reflect the influence of the regulation dead zone of the micro-sources on the power flow.At the same time,it has satisfactory accuracy and calculation speed and can be applied to online analysis.
作者
杨家豪
YANG Jiahao(Xiamen University Tan Kah Kee College,Zhangzhou 363105,China)
出处
《现代电力》
北大核心
2019年第1期53-60,共8页
Modern Electric Power
基金
厦门大学嘉庚学院校级科研孵化项目(2016L04)
关键词
孤岛微电网
微电源
死区
概率潮流
拉丁超立方采样
islanded microgrid
micro-sources
dead zone
probabilistic load flow
Latin hypercube sampling
作者简介
杨家豪(1990-),男,硕士,讲师,研究方向为智能配电网与微电网,E-mail:jhyang@xujc.com。
