基于源-荷匹配的区域电网风/光/储容量配比优化方法

合理优化风/光/储容量配比是实现大规模区域电网新能源高效利用的基础.提出一种基于源-荷匹配的区域电网风/光/储容量配比优化方法.首先,考虑了新能源与储能的运行特性、装机容量、新能源弃电率、新能源发电量占比等约束条件,建立以全网新能源发电量最大为目标的多区域风/光装机容量优化模型,并通过引入系统负荷匹配偏差约束来保证系统...

Capacity Proportion Optimization of Wind,Solar Power and Battery Energy Storage System for Regional Power Grid Based on Source-Load Matching

Capacity proportion optimization of the wind, solar power, and battery energy storage system is the basis for efficient utilization of renewable energy in a large-scale regional power grid. In this regard, an optimization method based on source-load matching was proposed to allocate the capacity proportion of the wind, solar, and battery energy storage system in a regional power grid. An optimization model was built to maximize wind and solar power generation. The optimization model considered the operational characteristics of wind and solar power and energy storage, constraints of installed capacity, annual curtailment rates, and proportions of wind and solar power generation. Moreover, the constraint of system-load matching deviation was placed to maintain the match between system power outputs and load demand. Then, with the annual output time-series of wind and solar as the input, the optimal capacity proportion of the wind, solar power, and battery energy storage system, which met the optimal source-load matching, was obtained by solving the proposed model. Finally, the effectiveness and practicability of the proposed model and method were verified by testing on an actual regional power grid in the north of China.