嵌入式微电网分布式新电源的规划和调度模型

随着嵌入式微电网的迅猛发展,多种能源协调运行成为目前研究的热点,研究了含有电热冷三种能源的微电网内分布式新电源的最佳规划与运行。建立了微电网内各微电源的运行模型(冷热电联供机组,电锅炉,风机,光伏,电热冷储能和电制冷机);采用了微电网投资等年值指标来衡量该项目的经济性并得到了各分布式电源的最佳容量及协调运行模式;文中将模型转化为线性模型并采用Matlab-Yalmip平台调用Cplex求解器进行仿真求解。仿真结果表明,多能源微电网能实现多种能源的交互和协调调度,同时,文中多能源微电网还与传统的分产微电网系统进行了对比以验证多能源微电网的合理性和必要性。

Planning and Operation Model for Distributed Generators in a Multi-Energy Microgrid

With the development of the energy internet, the coordination of multiple energies is becoming the focus of the research. In this light, this paper investigates on the optimal planning and operation of the multi-energy microgrids. First, this paper build the model of all the distributed generators (combined cooling, heat and power plants, electric boiler, wind turbine, photovoltaic cell, electric energy storage, heat energy storage and cooling energy as well as electric chiller). Then, the net present value index is used to evaluate the economy of this project and to obtain the optimal planning and operation results. Finally, this paper transfers the nonlinear model into linear one and then solves it by the Matlab-Yalmip via the Cplex solver. The simulation results show that the multi-energy microgrid could realize the coordination of multiple energies. Besides, in this paper, we compared our method with the traditional separate generation microgrid to verify the effectiveness and necessity of our method.