利用用户侧资源提升电网规划运行效率的方法

随着清洁能源发展、电网结构演变与用电负荷增长,仅依靠电源侧扩展规划与优化调度将影响电网规划运行效率,亟须挖掘用户侧资源可利用潜力,提升电网规划运行效率。针对用户侧资源利用潜力进行分类评估,提出考虑用户侧资源的电力系统灵活性协调优化规划方法。该方法以全社会综合经济成本最小为目标,决定各类型用户侧资源改造规模、灵活性电源及其配套电网建设容量,能够提升电网规划运行效率。结合某省级电网进行实证分析,结果证明该方法具有可行性和实用价值。

Method of Improving Power Grid Plan and Operation Efficiency Considering Demand Side Resource

With the development of clean energy,the evolution of power grid’s structure and the growth of electrical load,only relying on the expansion planning and optimal dispatching of power supply side will affect the planning and operation efficiency of power grid.It is urgent to exploit the resource utilization potential of demand side resources to improve the planning and operation efficiency of power grid.The utilization potential is evaluated according to the categories of demand side resource.Then this paper establishes a coordinated optimization model of multi-type demand side resources based on source-grid-load interaction,aiming at minimizing the comprehensive economic cost of the whole society.The using scale of the multi-type demand side resource,construction capacity of flexible generators and their matching grid are decided,which can improve power grid plan and operation efficiency.A provincial power grid is analyzed based on the proposed methods to demonstrate its feasibility and practical value.