计及动态热定值的配电网可靠性分析

发布时间：2018-11-25 14:31

【摘要】：架空线路传输容量限制是影响配电网可靠性的重要因素,动态热定值可有效挖掘现有配电线路的热载流能力,提高配电网运行的可靠性。为此,该文基于CIGRE标准计算架空线路实时气象条件下的最大允许热载流量,采用序贯蒙特卡罗方法抽取系统状态,建立考虑线路动态热载流限制的状态分析模型,通过比较基于静态热定值和动态热定值的系统可靠性指标,量化动态热定值产生的可靠性收益,并在此基础上分析了动态热定值时间尺度(按小时、按周、按月和按季度)的不同对其产生经济效益的影响。通过算例验证了模型的合理性,其结果表明动态热定值可显著提高配电网的可靠性收益。
[Abstract]:The limitation of overhead transmission capacity is an important factor affecting the reliability of distribution network. Dynamic caloric setting can effectively excavate the hot current capacity of existing distribution lines and improve the reliability of distribution network operation. In this paper, based on the CIGRE standard, the maximum allowable hot load flow is calculated under the real time meteorological condition of overhead lines, and the sequential Monte Carlo method is used to extract the system state, and a state analysis model considering the limitation of the line dynamic hot load current is established. By comparing the system reliability indexes based on static caloric value and dynamic calorimetric value, the reliability income of dynamic calorific value is quantified, and the time scale of dynamic calorific value (hour by hour, week by week) is analyzed. The impact of monthly and quarterly variations on its economic benefits. The rationality of the model is verified by an example. The results show that the dynamic caloric value can significantly improve the reliability income of distribution network.
【作者单位】：山东大学(威海)机电与信息工程学院;山东大学电气工程学院;
【基金】：国家自然科学基金项目(51407111,51407106) 山东省科技发展计划项目(ZR2015ZX045,ZR2013EEL005) 威海市科技发展计划项目(2014DXGJ23)~~
【分类号】：TM732

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