基于分段平均化模型的微电网快速电磁暂态仿真方法  

Fast Electromagnetic Transient Simulation Method of Microgrid with Piecewise Averaged Model

作　　者：陈卫东 许寅[2] 梁朔 黄秀琼 高海翔[2] 陈颖[2] 

机构地区：[1]广西电网有限责任公司电力科学研究院,南宁530023 [2]电力系统国家重点实验室(清华大学电机系),北京100084 [3]广西电网有限责任公司,南宁530023

出　　处：《南方电网技术》2015年第9期98-103,共6页Southern Power System Technology

基　　金：国家高技术研究发展计划(863计划)项目(2012AA050217)~~

摘　　要：针对微电网的详细电磁暂态(EMT)仿真模型效率较低的问题,提出了一种基于分段平均化模型的微电网快速电磁暂态仿真方法,记作EMTPAM。该方法将分布式电源(DG)和分布式储能元件(DS)以分段平均化模型(PAM)来处理,并将PAM集成到微电网EMT仿真程序中。对带有两个光伏元件(PV)和一个电池储能系统(BESS)的微电网系统分别进行PSCAD/EMTDC和EMTPAM仿真,两者结果的一致性验证了所提方法的有效性;但后者的速度更快,表明所提的分段平均化模型具有更高的效率。Aiming at the low effectiveness problem of electromagnetic transient （EMT） simulation of microgrids, a fast electromagnet-ic transient simulation of microgrid with piecewise average model is proposed, and noted as EMTPAM, in which the distributed gener-ation （DG） and distributed stored energy element （DS） are dealed with piecewise averaged models （PAM） while the PAMs are inte-grated into the EMT simulation program. Simulations of a microgrid system including two pieces of photovoltaic and one battery energystorage system （BESS） are carried out with both PSCAD/EMTDC and EMTPAM, the results are in agreement, showing the accuracyof the proposed method; but the simulation speed of the later is higher than the former, showing the proposed piecewise averaged mod-el （PAM） is much more effective.

关 键 词：微电网 电磁暂态仿真 分布式电源 分布式储能元件 分段平均化模型 

分 类 号：TM645.1[电气工程—电力系统及自动化]