李咸善;鲁伦;徐浩;张晋维;方婧;陈铁;范雨萌;易茗;

• 1:湖北省新能源微电网协同创新中心
• 2:深圳供电局有限公司
• 3:梯级水电站运行与控制湖北省重点实验室(三峡大学)

摘要(Abstract)：

根据微电网的特点,提出将微电网功率可调节裕度指标引入到微电网综合脆弱度指标之中,建立了更为完善的微电网脆弱度指标体系,使其更能反映当前微电网的稳定状态;并将微电网重构须遵循的组网规则以组网约束的形式引入到动态重构的约束条件之中,使得重构后的微电网更具有可运行性;针对孤岛运行的微电网,提出了基于脆弱度分层的微电网分级优化动态重构策略。根据当前微电网脆弱度大小所反映的微电网安全稳定状态的轻重缓急,将微电网重构按照经济性重构、稳定经济性重构和紧急稳定性重构分为三个层次,每层侧重于不同的优化目标,有利于确保系统安全性的基础上提高系统运行的经济性;为提高重构的实时性,提出了基于约束条件分级的优化方法,并应用到每一层重构的优化过程之中,先行处理不涉及潮流计算的约束判断,使得只有满足先行级约束的方案进入后续级优化,可大大减少计算量。算例结果验证了所提方法的有效性。

关键词(KeyWords)： 微电网;动态重构;脆弱度;分层重构;分级优化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51277110);; 湖北省自然科学基金计划重点项目(2016CFA097)~~

作者(Author): 李咸善;鲁伦;徐浩;张晋维;方婧;陈铁;范雨萌;易茗;

Email:

DOI: 10.13335/j.1000-3673.pst.2017.2965

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