文章摘要
肖凡,张昌华,段雪,等.逆变器潮流计算节点类型等效及鲁棒下垂节点的潮流计算[J].电力系统自动化. DOI: 10.7500/AEPS20170918003.
xiaofan,zhangchanghua,duanxue, et al.Equivalence of inverter node type in power flow calculation and power flow calculation about robust droop node[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20170918003.
逆变器潮流计算节点类型等效及鲁棒下垂节点的潮流计算
Equivalence of inverter node type in power flow calculation and power flow calculation about robust droop node
DOI:10.7500/AEPS20170918003
关键词: 微电网  潮流计算  鲁棒下垂控制器  逆变器
KeyWords: micro grid  power flow calculation  robust droop controller  inverter
上网日期:2018-04-10
基金项目:国家自然科学基金,国家教育部回国人员科研启动基金
作者单位E-mail
肖凡 电子科技大学 1575472541@qq.com 
张昌华 电子科技大学 zhangchanghua@uestc.edu.cn 
段雪 电子科技大学 568653374@qq.com 
陈昕 重庆邮电大学 ainks517@163.com 
陈树恒 电子科技大学 chenshuheng@uestc.edu.cn 
刘群英 电子科技大学 Lqy1206@126.com 
摘要:
      潮流计算在电力系统分析中占据着基础性的地位。微电网的潮流计算往往需要利用节点类型等效的方法将逆变器转换成PQ、PV类型的节点。但节点类型等效的条件与逆变器控制策略密切相关。文中从微电网潮流计算的角度,通过比较逆变器滤波器的参数与微电网线路阻抗,总结了适宜进行直接等效的逆变器控制策略的特点。并针对近年来出现的鲁棒下垂控制器(Robust Droop Controller),建立了鲁棒下垂控制器的潮流计算模型。基于牛顿法,给出了潮流计算的修正方程,统一求解系统潮流。最后,以欧盟20节点自治运行微电网为例,验证了算法的有效性。研究成果有利于逆变器设计和微电网潮流分析。
Abstract:
      Power flow calculation plays an important role in power system analysis. In power flow calculation of microgrid, inverter type nodes often need to be converted into PQ and PV type nodes by using the node type equivalent method. In this paper, through comparison of parameters between inverter’s LCL filter and transmission line’s impedance of microgrid, characteristic of inverter controller which is suitable for microgrid power flow calculation is summarized. For robust droop controller presented in recent years, the power flow calculation model is established. Basing on Newton method, the modified equation of power flow calculation is set up for solving power flow. According to European microgrid, a 20 nodes autonomous microgrid system is set up, verifying the effectiveness of the algorithm. Research benefits design of inverter and power flow analysis of microgrid.
查看全文   查看/发表评论  下载PDF阅读器