摘要
针对风电反调峰性和不确定性,结合抽水蓄能与需求响应各自优势,提出一种风电-抽蓄-需求响应-火电联合安全经济调度新模型。针对负荷转移在时间及电量上的双重属性,设计二维阶梯交叠式成本函数,结合可中断负荷容量及电量成本进而形成需求响应综合成本模型;在考虑抽蓄电站相关约束和系统安全约束基础上,构建基于预测场景和随机场景的调度决策综合成本评估体系。在10机节点系统上通过评估体系对所提模型进行算例仿真,结果表明,所提模型能够进一步降低系统运行成本、延缓投资并减小风电场弃风,增强系统运行经济性。
Aiming at the reverse peak-shaving and uncertainty of wind power,a joint secure economic dispatch model considering the wind power,pumped storage,demand response and thermal power is proposed to make use of the advantages of pumped storage and demand response. A bidimensional ladder overlapping cost function is designed according to the time and power attributes of load transfer and a comprehensive demand-response cost model including the interruptible load capacity and power cost is formed. A comprehensive assessment system of dispatch cost is constructed based on the predicted and random scenarios,which considers the constraints of pumped storage power station and system security. Simulation is carried out for a 10-bus system and the simulative results show that,based on the proposed model,the system operational cost is decreased,the investment delayed,the wind curtailment reduced and the system operational economy enhanced.
出处
《电力自动化设备》
EI
CSCD
北大核心
2015年第2期28-34,41,共8页
Electric Power Automation Equipment
基金
国家高技术研究发展计划(863计划)项目(2014AA-051901)~~
关键词
风电
抽水蓄能
需求响应
二维交叠
多场景
安全经济调度
模型
wind power
pumped storage
demand response
two-dimensional overlapping
multi-scenario
secure and economic dispatch
models
