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电网技术  2014 

风电经特高压线路并网时湖北电网调峰方案

DOI: 10.13335/j.1000-3673.pst.2014.10.016, PP. 2721-2728

Keywords: 特高压,风电消纳,联合调峰,混合整数线性规划

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Abstract:

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%。

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