基于多智能体一致性的微电网自适应下垂控制策略
发布时间：2018-08-06 15:29
【摘要】：利用智能体间的分布式通信,提出了一种基于多智能体一致性的自适应下垂控制策略,用于解决传统下垂控制中频率和电压偏差、系统稳定性和功率分配精度的问题。在传统下垂控制基础上,建立了有功功率分配、有功-频率和无功-电压的二阶动态模型。在考虑通信延迟的基础上,利用无领导的一致性控制分布式电源的有功出力满足传统下垂控制的要求;利用含虚拟领导者的一致性修正传统下垂控制中的频率和电压偏差;通过Lyapunov直接法验证了系统的渐进稳定性,故而解决了传统控制中有功下垂系数对系统稳定性的影响问题;分析了通信扰动对控制结果和稳定性的影响。通过仿真验证了所提策略的有效性。
[Abstract]:Based on the distributed communication between agents, an adaptive droop control strategy based on multi-agent consistency is proposed, which is used to solve the problems of frequency and voltage deviation, system stability and power allocation accuracy in traditional droop control. Based on the traditional droop control, the second order dynamic models of active power distribution, active power frequency and reactive power voltage are established. On the basis of considering the communication delay, the active power output of distributed power supply is controlled by leadless consistency to meet the requirements of traditional droop control, and the frequency and voltage deviation in traditional droop control is corrected by using the consistency of virtual leader. The asymptotic stability of the system is verified by the Lyapunov direct method, which solves the problem of the influence of the active power sag coefficient on the stability of the system, and analyzes the influence of the communication disturbance on the control results and stability. The effectiveness of the proposed strategy is verified by simulation.
【作者单位】： 上海交通大学电子信息与电气工程学院;
【基金】：国家自然科学基金资助项目(51577115) 国家重点研发计划项目(2016YFB091300)~~
【分类号】：TM727
[Abstract]:Based on the distributed communication between agents, an adaptive droop control strategy based on multi-agent consistency is proposed, which is used to solve the problems of frequency and voltage deviation, system stability and power allocation accuracy in traditional droop control. Based on the traditional droop control, the second order dynamic models of active power distribution, active power frequency and reactive power voltage are established. On the basis of considering the communication delay, the active power output of distributed power supply is controlled by leadless consistency to meet the requirements of traditional droop control, and the frequency and voltage deviation in traditional droop control is corrected by using the consistency of virtual leader. The asymptotic stability of the system is verified by the Lyapunov direct method, which solves the problem of the influence of the active power sag coefficient on the stability of the system, and analyzes the influence of the communication disturbance on the control results and stability. The effectiveness of the proposed strategy is verified by simulation.
【作者单位】： 上海交通大学电子信息与电气工程学院;
【基金】：国家自然科学基金资助项目(51577115) 国家重点研发计划项目(2016YFB091300)~~
【分类号】：TM727
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