基于分布式内模设计的微电网协调二次控制策略
发布时间：2018-08-11 09:55
【摘要】：研究基于多代理系统的孤岛型微电网二次电压和频率控制策略。首先建立孤岛型微电网电压和频率控制数学模型,利用状态反馈得到输入-输出线性化模型;然后简要介绍所需的基本图论原理,并利用内模设计原理设计分布式协调二次控制器,避免了集中控制结构下对中央控制器的依赖。基于多代理系统的分布式二次控制器通过一定的有向通信网络连接,每个代理只需本地及相邻节点信息。最后在PSCAD/EMTDC中建立孤岛微网的测试系统,通过仿真对所提控制策略的有效性进行验证,结果表明所提策略能够使频率和电压恢复额定值,同时保证有功功率分配的准确性。
[Abstract]:The secondary voltage and frequency control strategy of isolated microgrid based on multi-agent system is studied. Firstly, the mathematical model of voltage and frequency control of isolated microgrid is established, and the input-output linearization model is obtained by using state feedback, and then the basic graph theory principle is briefly introduced. The distributed coordinated quadratic controller is designed based on the principle of internal model design, which avoids the dependence on the central controller under the centralized control structure. The distributed quadratic controller based on multi-agent system is connected by a certain directed communication network. Each agent only needs local and adjacent node information. Finally, an island microgrid testing system is established in PSCAD/EMTDC, and the effectiveness of the proposed control strategy is verified by simulation. The results show that the proposed strategy can restore the frequency and voltage rating and ensure the accuracy of active power allocation.
【作者单位】： 新能源电力系统国家重点实验室(华北电力大学);
【基金】：国家高技术研究发展计划(863计划)(2015AA050603) 教育部中央高校基本科研业务费专项资金(2016XS01)资助项目
【分类号】：TM727
[Abstract]:The secondary voltage and frequency control strategy of isolated microgrid based on multi-agent system is studied. Firstly, the mathematical model of voltage and frequency control of isolated microgrid is established, and the input-output linearization model is obtained by using state feedback, and then the basic graph theory principle is briefly introduced. The distributed coordinated quadratic controller is designed based on the principle of internal model design, which avoids the dependence on the central controller under the centralized control structure. The distributed quadratic controller based on multi-agent system is connected by a certain directed communication network. Each agent only needs local and adjacent node information. Finally, an island microgrid testing system is established in PSCAD/EMTDC, and the effectiveness of the proposed control strategy is verified by simulation. The results show that the proposed strategy can restore the frequency and voltage rating and ensure the accuracy of active power allocation.
【作者单位】： 新能源电力系统国家重点实验室(华北电力大学);
【基金】：国家高技术研究发展计划(863计划)(2015AA050603) 教育部中央高校基本科研业务费专项资金(2016XS01)资助项目
【分类号】：TM727
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