基于对等控制策略的微电网运行

发布时间：2018-10-24 16:01

【摘要】：为减小微电网对通信系统的依赖性,实现分布式电源和负荷的即插即用,结合微电网不同运行模式,研究了微电网对等控制策略。在对等控制策略中,分布式电源采用下垂控制,调节分布式电源的输出电压和频率;下垂控制器中的P-f和Q-U具有线性的下垂特性。建立了对等控制策略下的微电网运行模型,分析了并网和孤岛运行模式之间切换、孤岛模式下切/增负荷及孤岛模式下切/增微电源三种运行状况下的微电网运行特性,基于Matlab/Simulink仿真结果,研究了微电网母线电压、DG频率和功率的变化规律,验证了控制策略的正确性和可行性。
[Abstract]:In order to reduce the dependence of microgrid on communication system and realize the plug and play of distributed generation and load, the peer-to-peer control strategy of micro-grid is studied. In the peer-to-peer control strategy, the distributed power supply adopts droop control to adjust the output voltage and frequency of the distributed power supply, and the P-f and Q-U in the droop controller have linear droop characteristics. The operation model of microgrid under peer-to-peer control strategy is established, and the operation characteristics of microgrid under switching between grid-connected and islanding operation mode, cutting / increasing load in islanding mode and cutting / increasing micro-power supply in isolated island mode are analyzed. Based on the simulation results of Matlab/Simulink, the variation rules of bus voltage, DG frequency and power are studied, and the correctness and feasibility of the control strategy are verified.
【作者单位】：广东工业大学自动化学院;华南理工大学电力学院;
【基金】：国家自然科学基金资助项目(51307025,51377026 5,5177050) 广东省高等学校科技创新项目(2013KJCX0059) 广东省自然科学基金资助项目(S2012040007895) 广东高校优秀青年创新人才培养计划项目资助(2012LYM_0052) 广东省教育厅专项重点实验室(IDSYS200701)
【分类号】：TM732

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