储能提升特高压交直流输电能力与提供跨区备用研究

doi:10.12028/j.issn.2095-4239.2018.0104

储能科学与技术 ›› 2019, Vol. 8 ›› Issue (2): 399-407.doi: 10.12028/j.issn.2095-4239.2018.0104

储能提升特高压交直流输电能力与提供跨区备用研究

杨军峰¹, 郑晓雨¹, 惠东², 杨水丽², 罗卫华¹, 王骅³

1 国家电网公司, 北京 100031;
2 中国电力科学研究院有限公司新能源与储能运行控制国家重点实验室, 北京 100192;
3 国网河南省电力公司电力科学研究院, 河南郑州 450052

收稿日期:2018-06-28 修回日期:2018-11-16 出版日期:2019-03-01 发布日期:2018-11-20
通讯作者: 杨水丽。E-mail:40303126@qq.com
作者简介:杨军峰(1970-),男,高级工程师,研究方向为研究方向为电网经济运行、电力市场与智能电网,E-mail:yang_junfeng@sgcc.com.cn
基金资助:
国家自然科学基金项目（51507160），国家电网公司科技项目（多点布局分布式储能系统在电网的聚合效应研究及应用示范）

Energy storage for enhancing transmission capacities and trans-regional reserves of a UHV AC/DC power grid

YANG Junfeng¹, ZHENG Xiaoyu¹, HUI Dong², YANG Shuili², LUO Weihua¹, WANG Hua³

1 State Grid Corporation of China, Xicheng Distric, Beijing 100031, China;
2 State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electric Power Research Institute, Beijing 100192, China;
3 Electric Power Research Institute of State Grid Henan Electric Power Company, Zhengzhou 450052, Henan, China

Received:2018-06-28 Revised:2018-11-16 Online:2019-03-01 Published:2018-11-20

摘要/Abstract

摘要： 探索应用储能为弱受端电网提供故障后大功率支撑以提升特高压交直流输电线稳态输送能力，同时兼作送端电网调峰的跨区备用源以增加新能源发电空间，以有效促进新能源跨区外送降低弃风弃光率。基于特高压交直流馈入受端电网的功率缺额与频率变化间的对应关系，提出在电网频率最低点满足要求的前提下，电网受电能力提升程度与储能容量配置间的数学模型；依据送端电网典型日各时段负荷特性建立可释放的新能源发电空间与所需储能备用调峰容量间的数学模型。结合考虑事故功率支撑与跨区调峰备用的容量需求特性及优先级别，探索两种功能联合应用下的容量需求方案和技术经济可行性。以交直流馈入的弱受端河南电网及新能源富集的送端新疆电网为例，验证了该新能源消外送纳能力提升方案的有效性。

关键词: 新能源, 受端电网, 频率, 事故支撑, 跨区备用

Abstract: This paper concerns the use of energy storage for enhancing transmission capacities and trans-regional reserves of a UHV AC/DC power grid. First, based on the correspondence of power shortage to frequency variation in the receiving system of UHV AC/DC power grid, this paper proposes a model on capability improvement of the receiver and capacity allocation of storage while maintaining the stability of the minimal frequency scenarios. Second, through the analysis of the load characteristics of different intervals during typical days, a model between increasing renewable generation and required capacity of storage for peak shaving is also proposed. Third, considering both the fault support and trans-regional peak shaving reserve as well as their priorities, the capacity configuration and the associated economic feasibility are studied. Finally, verification of the method is done by a simulation which sets Henan Grid as the weak receiving end while Xinjiang Grid as the sending end abundant in renewable energy.

Key words: renewable energy, receiving-end grid, frequency, support under fault, cross-regional reserve

中图分类号:

TQ028.8

杨军峰, 郑晓雨, 惠东, 杨水丽, 罗卫华, 王骅. 储能提升特高压交直流输电能力与提供跨区备用研究[J]. 储能科学与技术, 2019, 8(2): 399-407.

YANG Junfeng, ZHENG Xiaoyu, HUI Dong, YANG Shuili, LUO Weihua, WANG Hua. Energy storage for enhancing transmission capacities and trans-regional reserves of a UHV AC/DC power grid[J]. Energy Storage Science and Technology, 2019, 8(2): 399-407.

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储能提升特高压交直流输电能力与提供跨区备用研究

Energy storage for enhancing transmission capacities and trans-regional reserves of a UHV AC/DC power grid

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