基于C-FS混合算法的微电网经济调度

Economic Dispatch of Microgrid Based on C-FS Hybrid Algorithm

为了引导储能设备进行深度充放电,提高其使用寿命,利用雨流计数法得到每次充放电对储能设备寿命的影响,建立起了考虑储能设备运行成本的微网经济调度模型。文中针对自由搜索算法(FS)收敛速度慢、易陷入局部最优等缺点,结合混沌理论和精英策略,提出了一种混沌自由搜索混合算法(C-FS)对微网经济调度模型进行求解。通过对14节点辐射状微网系统进行仿真分析,结果表明,考虑储能设备运行成本能有效提高储能设备使用寿命。同时,与传统算法相比,混沌自由搜索混合算法能迅速跳出局部最优解和快速收敛。

To guide the charging and discharging of energy storage devices in depth and to improve its service life,rainflow counting method is used to analyze the influence of charging and discharging on the lifetime of energy storage device,and an economic schedule model of microgrid is built by considering the operation cost of energy storage equipment.As to such shortages as slow convergence speed and being easy to obtain partial optimization of free search algorithm（FS）,chaos-free search hybrid algorithm（C-FS）is proposed to solve the optimal dispatching problem of microgrid by combing chaos theory and elitist strategy in this paper.Through the analysis on the 14-bus radial microgrid system,the results show that service life can be effectively improved by considering the operation cost of energy storage equipment.Meanwhile,compared with the traditional algorithm,chaos-free search hybrid algorithm has better fast convergence and can obtain global optimal solution.