计及燃料电池热-电综合利用的能源网日前调度优化策略

Day-ahead Dispatching Optimization Strategy for Energy Network Considering Fuel Cell Thermal-electric Comprehensive Utilization

为解决风电消纳的问题,从优化热电耦合、提升能源网调节能力的角度出发,提出基于氢燃料电池(hydrogen fuel cell,HFC)储能系统的能源网综合调度优化策略。首先建立精确的HFC热、电产出模型,分析其在不同氢气输入量下的热电产出特性。在此基础上,以能源网运行成本最小化为目标对网内热电联产机组、纯凝机组、HFC、风电及制氢设备进行日调度经济性优化。仿真结果表明,考虑HFC热电联产特性可制定出更为精准、灵活、经济的调度运行策略,在"变废为宝"的同时,缓解了热电联产机组"以热定电"的机组特性限制,降低了系统"弃风",提高了能源网整体的运行经济性。该文为含风电场、热电联产机组、纯凝机组、HFC的能源网的经济运行策略制定提供了一个全新的视角。

In order to solve the problem of consuming wind power,from the perspective of optimizing the thermoelectric coupling and improving the energy network adjustment ability,integrated scheduling optimization strategy of energy network based on the hydrogen-fuel cell(HFC)energy storage system was proposed.Firstly,the precise heat and electricity output model of HFC was established,and the thermoelectric output characteristic under different hydrogen input quantity was analyzed.On the basis of this,the daily scheduling economy of the cogeneration units,condenser,HFC,wind power and hydrogen generator within the network was optimized with the goal of minimizing the operating cost of energy network.The simulation results verify that a more accurate,flexible and economic scheduling operating strategy can be made according to the thermoelectric output characteristic of HFC,and at the same time"turning waste into treasure",the"determining power generation by heat"characteristic limitation of cogeneration units was relieved,"abandoned wind"of the system was reduced,and the overall operation economy of the energy network is improved.This paper provides a new perspective for the development of energy network economic operation strategies with wind farm,the cogeneration units,condenser,and fuel cell.