中国电机工程学报Issue(4)：766-775,10.DOI:10.13334/j.0258-8013.pcsee.2015.04.002
风电-火电-抽水蓄能联合优化机组组合模型
Unit Commitment Model for Combined Optimization of Wind Power-Thermal Power-Pumped Storage Hydro
刘芳 1潘毅 1杨军峰 2周劼英 2周京阳 1朱泽磊 1李强1
作者信息
- 1. 中国电力科学研究院，北京市海淀区 100192
- 2. 国家电网公司，北京市西城区 100031
- 折叠
摘要
Abstract
The uncertainty of large-scale intermittent energy poses new challenges to grid operation, it is important to study unit commitment model for combined optimization of multi-source with intermittent energy to improve operation security and promote the utilization of intermittent energy. Based on analysis of the uncertainty of wind power and operational mechanism of pumped storage, this paper used confidence interval method to model the uncertainty, and proposed new constraints about system adjustment ability to establish unit commitment model considering wind power’s uncertainty and changes in pumped storage water head. This paper used a 6-node system to verify effectiveness of the model, and studied the impacts of pumped storage capacity and confidence interval on generation cost, unit commitment and its reliability. When the installed capacity of both wind and thermal power is fixed and the reliability of unit commitment is required to be more than 99%, results show that if pumped storage installed capacity accounted for respectively 5.6% and 10.5%, the powered on time will be reduced by 16 and 17 hours and the generation cost will be reduced by 4.6% and 6.8% respectively compared with the case without pumped storage. According to the example, it shows that the model can realize the coordinative optimization of multiple sources and the full use of wind power within the confidence interval.关键词
机组组合/多源联合优化/风电/抽水蓄能/置信区间Key words
unit commitment/multi-source combined optimization/wind power/pumped storage/confidence interval分类
信息技术与安全科学引用本文复制引用
刘芳,潘毅,杨军峰,周劼英,周京阳,朱泽磊,李强..风电-火电-抽水蓄能联合优化机组组合模型[J].中国电机工程学报,2015,(4):766-775,10.
