风电经特高压线路并网时湖北电网调峰方案

发布时间：2018-07-26 19:12

【摘要】：以湖北电网远景规划方案中蒙西至湖北特高压送风电为背景,研究了2017年丰大方式下湖北电网消纳蒙西特高压电力电量的调峰问题。分析了丰大典型日湖北电网的负荷特性、蒙西风电功率特性以及湖北省内电源的调峰特性和调峰能力。以省内发电成本最小、不弃水调峰、尽量消纳特高压电力为目标,建立了包含火电、水电、抽水蓄能和特高压联合调峰优化的混合整数线性规划模型。考虑不同的风电输送方式,采用CPLEX对联合调峰优化模型进行求解,给出了湖北电网火电、水电、抽水蓄能与特高压协调运行的调峰优化方案。仿真计算结果表明,2017年丰大方式下湖北电网负荷低谷时段的负调峰能力不够,需要特高压电力参与湖北电网调峰。当特高压以风电配额方式输入时,湖北省消纳蒙西风电的极限配额为34%。
[Abstract]:Based on the background of Mengxi to Hubei UHV wind power supply in Hubei power grid long-term plan, this paper studies the peak shaving problem of Hubei power grid's consumption of Mengxi UHV power under Fengda mode in 2017. The load characteristics, the power characteristics of the west wind and the peak-shaving capability of the power supply in Fengda typical day Hubei power network are analyzed. A mixed integer linear programming model including thermal power, hydropower, pumped storage and UHV combined peak-shaving optimization was established to minimize the cost of generating electricity in the province, not to abandon the water and peak shaving, and to absorb the UHV power as far as possible. Considering different transmission modes of wind power, the combined peak-shaving optimization model is solved by using CPLEX, and the optimization scheme of coordinated operation of thermal power, hydropower, pumped storage and UHV in Hubei power grid is given. The simulation results show that the negative peak-shaving capacity of Hubei power grid in the low period of load is not enough under Fengda mode in 2017, which requires UHV power to participate in the peak-shaving of Hubei power grid. When UHV is imported by wind power quota, the limit quota of wind power in Hubei Province is 34.
【作者单位】：武汉大学电气工程学院;湖北省电力公司;
【基金】：国家重点基础研究发展计划项目(973项目)(2012CB215201) 国家自然科学基金项目(51190105)~~
【分类号】：TM73

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