考虑风电不确定性的风蓄火联合优化经济调度研究  

Combined optimal economic dispatch of wind-storage-fireconsidering wind power uncertainty

作　　者：王博 詹红霞 张勇 王颖杰 WANG Bo;ZHAN Hongxia;ZHANG Yong;WANG Yingjie(School of Electrical and Electronic Information,Xihua University,Chengdu 610039,China;State Grid Shuozhou Power Supply Company of Shanxi Electric Power Company,Shuozhou 036004,China)

机构地区：[1]西华大学电气与电子信息学院,四川成都610039 [2]国网山西省电力公司朔州供电公司,山西朔州036004

出　　处：《电力工程技术》2022年第1期93-100,共8页Electric Power Engineering Technology

基　　金：国家自然科学基金资助项目(51877181)。

摘　　要：风电的间歇性、波动性和反调峰特性导致大量风能成为弃风,致使风电的经济效益和环保效益均受到影响。针对风电和抽水蓄能以及火电出力的不同特性,文中采用内外两层模型嵌套求解,即优先建立内层风蓄联合运行收益最大和风电入网波动最小的双目标模型,以决定抽水蓄能机组的抽水功率或发电功率,再在外层建立计及不同置信水平风电预测误差的风蓄火联合收益最大的目标模型。以抽水蓄能和风电合作运行来应对风电的不确定性,同时采用机会约束规划来处理模型中的随机变量。采用粒子群优化-遗传算法混合优化算法求解模型,并通过IEEE 30节点系统验证了该模型在增加系统经济效益的同时可以降低风电出力波动性。The intermittency,volatility,and anti-peak shaving characteristics of wind power cause a large amount of waste of wind power,which affects its economic and environmental benefits.In view of the different characteristics of wind power,pumped storage and thermal power output,the internal and external two-layer model is used to solve the problem.A dual-objective model with the largest internal wind-storage combined operation income and the smallest fluctuation of wind power is established firslyt to determine the pumping power or generate power of the pumped-storage unit.Then,an outer target model that takes into account the wind power forecast errors of different confidence levels is bulit to maximize the combined benefits of wind-storage.Secondly,the cooperative operation of pumped storage and wind power is used to deal with the uncertainty of wind power.Then the chance-constrained programming is used to deal with the random variables in the model.Finally,the particle swarm optimization-genetic algorithm(PSO-GA)hybrid optimization algorithm is used to solve the model.The IEEE 30-bus system verifies that the model increases the economic benefits of the system and reduces the volatility of wind power output.

关 键 词：风电 抽水蓄能 风电预测误差 机会约束规划 粒子群优化-遗传算法混合算法 经济调度 

分 类 号：TM732[电气工程—电力系统及自动化]