【摘要】：針對不平衡負(fù)載、故障等引起的微電網(wǎng)公共連接點(diǎn)電壓不平衡問題,提出了一種基于多代理系統(tǒng)的分布式協(xié)調(diào)電壓不平衡補(bǔ)償控制策略。將微電網(wǎng)各分布式電源等效為多代理系統(tǒng)中的代理,利用領(lǐng)導(dǎo)節(jié)點(diǎn)產(chǎn)生只有少數(shù)代理能夠接收的補(bǔ)償信號參考,公共連接點(diǎn)電壓不平衡補(bǔ)償?shù)刃楦鞔砉?jié)點(diǎn)向領(lǐng)導(dǎo)節(jié)點(diǎn)同步的追蹤同步問題。利用線性狀態(tài)反饋設(shè)計了分布式控制率。該控制策略基于一個單向通信的有向通信網(wǎng)絡(luò),各代理只需處理本地及相鄰代理信息。該控制策略避免了對集中控制器的依賴,提高了系統(tǒng)的可靠性。利用一個微電網(wǎng)測試系統(tǒng)對所提控制策略進(jìn)行了驗(yàn)證,仿真結(jié)果表明所提控制策略能夠有效抑制公共連接點(diǎn)電壓不平衡度。
[Abstract]:A distributed coordinated voltage compensation control strategy based on multi-agent system is proposed to solve the problem of common connection voltage imbalance in micro-grid caused by unbalanced load and fault. The distributed power generation in microgrid is equivalent to the agent in the multi-agent system, and the leading node is used to generate the reference of the compensation signal that only a few agents can receive. The common connection point voltage imbalance compensation is equivalent to the tracking synchronization problem in which each agent node synchronizes to the leading node. The distributed control rate is designed by linear state feedback. The control strategy is based on a one-way communication directed communication network. Each agent only needs to deal with local and adjacent agent information. The control strategy avoids the dependence on the centralized controller and improves the reliability of the system. The proposed control strategy is verified by a microgrid test system. The simulation results show that the proposed control strategy can effectively suppress the voltage imbalance at common connection points.
【作者單位】： 新能源電力系統(tǒng)國家重點(diǎn)實(shí)驗(yàn)室(華北電力大學(xué));

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1 肖朝霞;方紅偉;張獻(xiàn);;智能微電網(wǎng)研究綜述[A];天津市電機(jī)工程學(xué)會2009年學(xué)術(shù)年會論文集[C];2009年

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