摘要
为实现微电网并离网运行模式的无缝切换,尽量减少由于切换瞬间功率不匹配所带来的暂态冲击,在介绍风光储微电网拓扑特征和分析储能变流器运行控制特性的基础上,通过与微电网中央控制器结合,设计了含多类型储能的风光储微电网在并离网无缝切换过程中的逻辑控制策略。最后,通过PSCAD仿真平台,设计并搭建了风光储微电网系统的仿真模型和通信架构,验证了所设计并离网无缝切换控制策略在微电网系统不同运行工况下的有效性和正确性。
This study aims to realize the seamless transfer between grid-connected mode and islanding operation for micro-grid,and minimize the transient impact caused by the power mismatch at the switching moment. Firstly,this study presented the topology characteristics of the wind / photovoltaic / storage micro-grid,and analyzed the operational control characteristics of energy storage converters. And then,this study proposed a logic control strategy of seamless transfer for the wind / photovoltaic / storage micro-grid with various types of energy storage. Finally,the simulation model and communication architecture of a wind / photovoltaic / storage micro-grid are built in PSCAD / EMTDC simulation platform. The simulation results verify the effectiveness and validity of the designed control strategy of seamless transfer between grid-connected and islanding operation for micro-grid under different operation conditions.
出处
《电测与仪表》
北大核心
2016年第23期38-44,50,共8页
Electrical Measurement & Instrumentation
基金
国家电网公司科技项目(52094014000M)
关键词
微电网
并离网切换
控制策略
micro-grid
transfer between grid-connected mode and islanding operation
control strategy
