| 引用本文: | 冬 雷,黄晓江,肖辅荣,吴明轩,廖晓钟.基于博弈论控制方法的无互联线直流微电网发电系统[J].电力自动化设备,2014,34(8): |
| DONG Lei,HUANG Xiaojiang,XIAO Furong,WU Mingxuan,LIAO Xiaozhong.Control strategy based on game theory for DC microgrid without wire interconnections[J].Electric Power Automation Equipment,2014,34(8): |
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| 摘要: |
| 提出了一种基于博弈论的控制策略，应用于无互联线直流微电网中的分布式发电装置，实现并联均流的控制。该方法通过引入虚拟对手的概念，每台分布式发电装置根据自身的成本函数和其他发电装置之间通过博弈共同对直流母线电压进行控制，进而使直流母线电压和各分布式发电装置的输出电流最终达到纳什均衡。所给出的成本函数综合了分布式发电装置的输出功率、历史直流母线电压误差和当前直流母线电压误差。通过小信号建模分析了系统的动态稳定性。仿真和实验结果证明了该控制策略的有效性，各个分布式发电装置能够实现功率均分。 |
| 关键词: 微电网 博弈论 纳什均衡 功率均分 分布式发电 稳定性 |
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| Control strategy based on game theory for DC microgrid without wire interconnections |
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DONG Lei, HUANG Xiaojiang, XIAO Furong, WU Mingxuan, LIAO Xiaozhong
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School of Automation，Beijing Institute of Technology，Beijing 100081，China
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| Abstract: |
| A control strategy based on game theory is proposed for the power sharing among the distributed generation devices in DC microgrid without wire interconnections. Based on the concept of virtual rival and according to its own cost function，each generation device competes with others in the control of DC bus voltage，resulting in the Nash equilibrium of both DC bus voltage and output current. The given cost function integrates the output power of distributed generation device with the historical and present DC bus voltage errors. A small signal model is derived to analyze the dynamic performance of system. Simulative and experimental results show the power sharing among all distributed generation devices is achieved，validating the effectiveness of the proposed control strategy. |
| Key words: microgrid game theory Nash equilibrium power sharing distributed power generation stability |
