风电场储能装置的鲁棒优化配置  

Robust Allocation of Energy Storage System for Multiple Wind Farms

作　　者：韩杏宁 陈雁 文劲宇[1] 

机构地区：[1]华中科技大学电气与电子工程学院强电磁工程与新技术国家重点实验室,武汉430074 [2]南方电网科学研究院有限责任公司,广州510080

出　　处：《高电压技术》2015年第7期2217-2224,共8页High Voltage Engineering

基　　金：国家重点基础研究发展计划项目(973计划)(2012CB215106);国家电网公司总部科技项目(XT71-14-051)~~

摘　　要：在含多风电场的电网中,为风电场配置一定容量的储能装置,能够有效削弱风电场出力波动性对系统运行带来的不良影响。首先以最小切负荷量作为评估系统运行安全的指标,在确定的网架和机组出力方式下分析多个风电场出力的随机波动对系统运行安全的影响;然后,在期望的系统安全运行风险下,求解对应的风电场出力可接纳范围;最后基于此确定风电场需要安装储能的位置和额定功率。在Garver算例系统中接入4座风电场,分析得出在不切负荷的情况下,很难基于有限的电源运行范围和线路传输能力约束消纳全部风电场的功率波动。研究表明,基于不切负荷的安全运行要求,需优先在传输能力不受限、风电功率波动较小的节点配置储能装置,最大限度减小储能配置需求。Integration of energy storage system （ESS） in power system with large-scale wind energy is an effective means to mitigate effects caused by wind power fluctuation. We proposed a novel model to address ESS allocation. Firstly, an optimization was formulated based on the DC power flow and fixed network structure and operation strategy. Then, the minimum load shedding was used to quantify the operational risk when considering uncertainties in multiple wind farms. Finally, the optimal allocation of ESS, including the power capacity and location, was obtained simultaneously according to the expected operational risk （EOR）. Results from Garver＇s system with four wind farms integrated indicate that it is hard to accommodate wind power variation based on limited generators＇ operation range and network transmission capac- ity. Based on the security requirements of no-load shedding, it is recommended to allocate ESS at wind farm nodes with narrower wind power variation and without transmission congestion.

关 键 词：鲁棒线性优化 储能装置 容量配置 风电 不确定性 切负荷 安全运行 

分 类 号：TM614[电气工程—电力系统及自动化]