考虑风电消纳的电热联合系统多源协调优化运行

MULTI-SOURCE COORDINATION AND OPTIMAZATION OPERATION OF COMBINED HEAT AND POWER SYSTEM CONSIDERING WIND POWER CONSUMPTION

为解决中国＂三北＂地区风电消纳问题,从提升电力系统调节能力的角度出发,通过在供热侧配置储热、供电侧配置抽水蓄能,与常规机组共同参与电网优化调度,形成电热联合系统多源协调运行的调度模式。在研究电热负荷与风电出力分布特性的基础上,深入分析电热联合系统多源协调对风电消纳的影响机理,以风电消纳电量最大和系统运行成本最小为目标建立电热联合系统多源协调优化模型,并采用多目标和声搜索算法对模型进行求解。以6节点系统为例验证了模型的有效性,结果表明电热联合系统多源协调运行可有效降低系统运行成本,提高风电消纳水平。

To solve the consumption problem of wind power in the Three Norths（for northwest China,noth China,and northeast China）,from the perspective of improving the regulation of the power system,the heat storage is configured in the heat supply side and the pumped storage is configured in the power supply side,a multi-source coordinated operation scheduling mode of combined heat and power system is formed by cooperating with conventional generators to participate in grid optimization scheduling.Based on the study of the distribution characteristics of electric heating load and wind power output,the influence mechanism of multi-source coordination of combined heat and power system on wind power consumption is analyzed in depth,and aiming at the goal of maximum wind power consumption and minimum system operating cost,the multi-source coordinated operation and optimization model of combined heat and power system is established,and the multi-objective harmony search algorithm is used to solve the model.The 6-node system is used as an example to verify the validity of the model.The results show that the multi-source coordinated operation of combined heat and power system can effectively reduce the system operation costs and increase the level of wind powerconsumption.