用于提高风电渗透率的复合储能容量优化研究  

Sizing of Hybrid Energy Storage System for Improving Wind Power Penetration

作　　者：杨天蒙 宋卓然 娄素华[2] 吴志明[2] YANG Tianmeng;SONG Zhuoran;LOU Suhua;WU Zhiming(Economy Technical Research Institute of State Grid Liaoning Electric Co., Ltd., Shenyang 110015, Liaoning Province, China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology （Huazhong University of Science and Technology）, Wuhan 430074, Hubei Province, China)

机构地区：[1]国网辽宁省电力有限公司经济技术研究院,辽宁省沈阳市110015 [2]强电磁工程与新技术国家重点实验室(华中科技大学),湖北省武汉市430074

出　　处：《电网技术》2018年第5期1488-1494,共7页Power System Technology

摘　　要：风力发电固有的波动性对电力系统安全稳定运行的不利影响限制了其入网规模。为此提出了用于缓解风力发电对电力系统带来的冲击、提高其渗透率的抽水蓄能-电池复合储能系统容量优化模型。提出了风电典型和特殊出力场景的确定方法,以提取出代表风电出力规律的场景集合。考虑风电并网功率波动率的约束,充分发挥抽水蓄能及电池储能各自运行特性的优势,以改善风电不同时间尺度的出力特性,并在计及复合储能系统投资及运行成本的基础上,确定出使系统费用最小的复合储能容量配置规模。采用风电场全年出力数据,以改进的RTS-96系统进行了仿真计算,算例结果验证了所提复合储能模型的有效性,在保证电力经济运行的情况下提高了风电渗透率。Wind power has inherent nature of random fluctuation and intermittence, bringing adverse effects on stable and secure system operation and restricting wind power to integrate to power grid. A sizing model of hybrid energy storage system（HESS） composed of pumped storage station and battery energy storage system（BESS） was presented to inhibit the adverse effects of wind power on power grid. Based on restriction of the upper limit of fluctuation rate, and taking investment and operation costs into consideration, the optimal HESS capacities could be determined. The proposed model was verified with modified RTS-96 system and actual power output of wind farms. Results proved effectiveness of the proposed model, and wind power penetration was increased with the power system operating economically.

关 键 词：风力发电 并网运行 渗透率 功率输出波动率 容量优化 复合储能 

分 类 号：TM715[电气工程—电力系统及自动化]