并网模式下的微电网电源优化配置研究

Study on Optimal Configuration of Power Supply of Micro Grid with In-gird Mode

通过改进的粒子群算法,对并网模式下的微电网电源优化配置问题进行分析,结合具体的微电网模型与相关数据,从节能环保角度,以分布式电源安装容量最大为目标函数,以公共连接点的相关电压运行要求、考虑故障转孤网时满足最小负荷需求为约束条件,将微电网电源的优化配置问题转化为一个多约束条件的非线性整数规划问题。仿真研究了不同的风-光接入比、资源参数以及置信水平的微网电源优化配置问题,研究结果对并网模式下微电网电源优化配置提供参考。

By improved particle swarm optimization, this paper analyzes optimal configuration of power supply of micro grid with in-gird mode. Combining with specified micro grid model and related data, taking maximum installation capacity of dis- tributed generation as objective function and corresponding voltage operation requirements of the public connections and minimum load requirements when considering transformation of fault into isolated grid as constraint conditions, it studies transformation of optimal configuration of power supply of micro grid into a multiple constraints nonlinear integer program- ming problem from the angle of environmental protection. In addition, it carries out simulation study on optimal configura- tion of power supply of micro grid with different wind-light access ratio, resource parameters and confidence level. The study result is able to provide references for optimal configuration of power supply of micro grid with in-grid mode.