微电网模式平滑切换的多环主从控制策略研究  

Improved Seamless Transferring Control Strategy for Microgrid Based on Master-slave Configuration

作　　者：和军平[1] 晁璞璞 陶耀东[1] 

机构地区：[1]哈尔滨工业大学深圳研究生院机电工程与自动化学院,深圳518055

出　　处：《电源学报》2016年第2期128-136,共9页Journal of Power Supply

基　　金：国家留学基金资助项目(201206125059);深圳市基础研究资助项目(JCYJ20140417172417103)~~

摘　　要：针对微电网模式平滑切换中传统主从控制切换难度大、参数跟踪复杂、下垂控制切换动态特性差的不足,提出了一种多环主从切换控制策略。该新型控制策略在并网和离网模式下,主源采用带内置参数环的多环控制结构,从源采取恒功率控制结构,不仅主源和从源在模式切换时不需要进行控制策略的切换,而且也不需要再外接参数跟踪器,而控制结构更可靠,切换的过渡过程也更加平稳。通过Matlab/Simulink仿真平台,算例结果验证了所提出控制策略的正确性和有效性。To ensure the seamless mode transferring of the microgrid, a novel master-slave control strategy with multi-loop has proposed. The traditional master-slave control is difficult to switch between grid-connected mode and standalone mode and the droop control has poor dynamic characteristics. And this proposed strategy can overcome all these problems. The main source adopts the multi-loop control structure with an inner parameter tracking ring while the slave source adopts the constant power control structure. Through this strategy, there is no need to switch controllers＇ topology and access an external parameters＇ tracker for both master and slave resources when transferring between two modes.Finally, the correctness and feasibility of the proposed strategy are verified by the experimental results on Matlab/Simulink.

关 键 词：微电网 模式平滑切换 下垂控制 主从控制 

分 类 号：TM727[电气工程—电力系统及自动化]