基于抽水蓄能的含高比例风电农业配电网优化调度Optimal Dispatch of Agricultural Distribution Networks with a High Proportion of Wind Power Based on Pumped Storage
刘晓,王洪伟
LIU Xiao,WANG Hongwei
摘要(Abstract):
对于含高比例风电的并网型农业配电网,如何在满足农业用电负荷和灌溉用水负荷的基础上,优化调度各类设备以应对不确定性风险及平抑随机波动性等具有重要的研究意义。通过构建评估风电不确定性的功率不足期望指标,提出一种基于抽水蓄能的水-电耦合农业配电网风险规避优化调度方法,提高农村地区电能分配与使用效率,实现农业配电网安全稳定运行。利用进化捕食策略算法对含复杂等式约束与不等式约束的水-电耦合农业配电网优化模型进行仿真计算,结果表明所提出的方法能够有效地规避不确定性风险,提高风电的利用效率,平滑系统净负荷曲线。
For grid-connected agricultural distribution networks with a high proportion of wind power,it is pivotal to study how to optimally dispatch various types of equipment to cope with uncertain risks and smooth out random fluctuations based on meeting the demand of agricultural electricity load and irrigation water load. By constructing an expectation index of power deficit for evaluating wind power uncertainty,the paper proposes an optimal risk-averse dispatching method for power-water coupled agricultural distribution networks based on pumped storage to improve the efficiency of electric energy distribution and use in rural areas and realize the safe and stable operation of agricultural distribution networks. Simulations of the optimization model of the water-power coupled agricultural distribution networks with complex equation constraints and inequality constraints are carried out using the evolutionary predator and prey strategy(EPPS),and the results show that the proposed method can effectively avoid uncertain risks,improve the utilization efficiency of wind power,and smooth the net load curve of the system.
关键词(KeyWords):
农业配电网;抽水蓄能;风险规避;水-电耦合;不确定性风电
agricultural distribution networks;pumped storage;risk aversion;water-power coupling;uncertain wind power
基金项目(Foundation): 国网山东省电力公司科技项目(5206002000PW)
作者(Author):
刘晓,王洪伟
LIU Xiao,WANG Hongwei
DOI: 10.19585/j.zjdl.202201007
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