基于多Agent的多源水电微网负荷平衡控制方法

A Load Balance Control Method of Multi-Source Hydropower Micro Grid Based on Multi-Agent

为保证多源水电微网频率、电压的稳定输出,提出基于多Agent的多源水电微网负荷平衡控制方法。通过构建包括专业Agent团体与主管Agent的分布式集成智能控制系统,利用主管Agent实时监控多源水电微网的负荷与性能,根据不同需求与状况变换专业Agent团体中控制Agent的控制模式,控制负载、发电与储能设备的常规运行及关键开关;结合单Agent模型中的负荷平衡控制算法,运算多源水电微网内功率缺额,依据发电机调节性能、负荷调节效应及动态性能,平衡功率缺额,实现多源水电微网负荷平衡控制。实验结果表明,该方法可有效降低多源水电微网内各变流器的负序电流分配误差、切除微网内的多余功率缺额、恢复多源水电微网的频率和电压,且微网负荷平衡控制容错性能较好,使多源水电微网平稳运行。

To ensure a stable frequency and voltage output of the multi-source hydropower,a multi-Agent based load balancing control method is proposed in this paper. By constructing a distributed integrated intelligent control system including professional Agent group and principal Agent,the principal Agent is utilized to monitor the load and performance of multi-source hydropower micro-grid in real time,and the control mode of the control Agent in the professional Agent group is changed according to different demands and conditions so as to control the routine operation and key switches of load,power generation and energy storage equipment. Combined with the load balance control algorithm in the single Agent model,the power shortage in the multi-source hydropower micro-grid is calculated. According to the generator regulation performance,load regulation effect and dynamic performance,the power shortage is balanced to realize the load balance control of the multi-source hydropower micro-grid. The experimental results show that this method can effectively reduce the negative sequence current distribution error of each converter in the multi-source micro-grid,remove the excess power shortage in the micro-grid,restore the frequency and voltage of the multisource micro-grid,and the micro-grid load balance control fault-tolerant performance is good, ensuring the smooth operation of the multi-source micro-grid.