基于有功不平衡指标的储能快速调频方法

doi:10.3969/j.issn.1000-7229.2018.10.013

电力建设 ›› 2018, Vol. 39 ›› Issue (10): 106-112.doi: 10.3969/j.issn.1000-7229.2018.10.013

基于有功不平衡指标的储能快速调频方法

樊海锋1，刘文龙2，苏大威3，余璟3

1.国网江苏省电力有限公司电力科学研究院, 南京市 211103；2.浙江大学电气工程学院, 杭州市 310027；3.国网江苏省电力有限公司, 南京市 210024

出版日期:2018-10-01
作者简介:樊海锋（1987），男，硕士，工程师，主要研究方向为电力系统运行与控制，储能技术应用；刘文龙（1991），男，博士研究生，主要研究方向为新能源并网与储能技术应用；苏大威（1972），男，硕士，教授级高级工程师，主要研究方向为电网调度及其自动化；余璟（1980），男，硕士，高级工程师，主要研究方向为电网调度及其自动化。
基金资助:
国家自然科学基金青年项目（51607092）；国家电网公司科技项目（J2017046）

Fast Frequency Regulation Method Based on Unbalanced Power Index Using Energy Storage System

FAN Haifeng1, LIU Wenlong2, SU Dawei3, YU Jing3

1. Electric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211103, China；2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China；3. State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210024, China

Online:2018-10-01
Supported by:
This work is supported by National Natural Science Funds for Distinguished Young Scholar（No. 51607092） and State Grid Corporation of China Research Program（No. J2017046）.

摘要/Abstract

摘要： 因主流变速风电机组有功控制一般不主动参与频率调节，大规模风电并网对电力系统快速调频提出了挑战。储能系统具备有功功率快速响应优势，可改善系统动态频率响应特性，该文提出了一种基于有功不平衡指标的储能快速调频方法。首先，定义了在频率跌落阶段和恢复阶段系统有功不平衡指标。其次，设计了自适应模糊逻辑控制策略，依据系统有功不平衡指标和频率偏差动态调整储能系统在频率跌落阶段和恢复阶段的有功出力。最后，通过算例分析验证了所提出的储能快速调频控制方法的有效性，与常规比例微分（proportional differential，PD）控制方法相比，可减少储能系统容量需求，且对不同工况具有较好的灵活性和适应性。

关键词: 快速调频, 储能系统（ESS）, 模糊逻辑, 不平衡指标

Abstract: As most variable speed wind power generators scarcely respond to frequency variation actively, large-scale wind power integration brings challenge to the fast frequency regulation of power system. With the advantage of fast response, energy storage system （ESS） can be used to improve dynamic frequency response of power system. A fast frequency regulation method based on unbalanced power index using ESS is proposed in this paper. Firstly, unbalanced power indices in the stages of frequency fall and recovery are defined. Secondly, an adaptive fuzzy logic control strategy is designed to adjust power output of ESS in the stages of frequency fall and recovery according to unbalanced power index and frequency deviation. Finally, compared to proportional differential （PD） control, the proposed method can reduce capacity demand of ESS and be more flexible and adaptable to different operating conditions, which is verified by case studies.

Key words: fast frequency regulation, energy storage system （ESS）, fuzzy logic, unbalanced power index

中图分类号:

TM 761

樊海锋，刘文龙，苏大威，余璟. 基于有功不平衡指标的储能快速调频方法[J]. 电力建设, 2018, 39(10): 106-112.

FAN Haifeng, LIU Wenlong, SU Dawei, YU Jing. Fast Frequency Regulation Method Based on Unbalanced Power Index Using Energy Storage System[J]. Electric Power Construction, 2018, 39(10): 106-112.

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基于有功不平衡指标的储能快速调频方法

Fast Frequency Regulation Method Based on Unbalanced Power Index Using Energy Storage System

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