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

doi:10.3969/j.issn.1000-7229.2018.10.013

Abstract

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

CLC Number:

TM 761

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.

References

［1］李建林, 杨水丽, 高凯. 大规模储能系统辅助常规机组调频技术分析［J］. 电力建设, 2015, 36（5）: 105-110.

LI Jianlin, YANG Shuili, GAO Kai. Frequency modulation technology for conventional units assisted by large scale energy storage system［J］. Electric Power Construction, 2016, 35（5）: 23-42.

［2］苗福丰, 唐西胜, 齐智平. 储能参与风电一次调频的容量优化［J］. 电工电能新技术, 2016, 35（4）: 23-29,42.

MIAO Fufeng, TANG Xisheng, QI Zhiping. Capacity optimization of energy storage participating to wind plant primary frequency regulation ［J］. Advanced Technology of Electrical Engineering and Energy, 2016, 35（4）: 23-29,42.

［3］严干贵, 王昱博, 钟诚, 等. 风储联合系统调频控制策略研究［J］. 电力建设, 2016, 37（12）: 55-60.

YAN Gangui, WANG Yubo, ZHONG Cheng, et al. Frequency control strategy for wind storage combined system［J］. Electric Power Construction, 2016, 37（12）: 55-60.

［4］李虎成, 袁宇波, 卞正达, 等. 面向特高压交直流大受端电网的频率紧急控制特性分析［J］. 电力工程技术, 2017, 36（2）: 27-31.

LI Hucheng, YUAN Yubo, BIAN Zhengda, et al. The frequency emergency control characteristic analysis for UHV AC/DC large receiving end power grid［J］. Electric Power Engineering Technology, 2017, 36（2）: 27-31.

［5］曾鉴, 叶希, 翟小斌, 等. 异步互联格局下川渝送端电网的频率稳定特性与控制策略［J］. 电力建设, 2018, 39（1）: 68-75.

ZENG Jian, YE Xi, QU Xiaobin, et al. Frequency stability characteristics and control strategies for Chuanyu transmission network after asynchronous interconnection［J］. Electric Power Construction, 2018, 39（1）: 68-75.

［6］李顺, 廖清芬, 刘涤尘. 基于WAMS 的自适应低频减载动态优化策略［J］. 电力系统保护与控制, 2016, 44（13）: 48-54.

LI Shun, LIAO Qingfen, LIU Dichen. WAMS based dynamic optimization of adaptive under-frequency load shedding［J］. Power System Protection and Control, 2016, 44（13）: 48-54.

［7］胡泽春, 丁华杰, 宋永华, 等. 能源互联网背景下储能应用的研究现状与展望［J］. 电力建设, 2016, 37（8）: 8-17.

HU Zechun, DING Huajie, SONG Yonghua, et al. Research status and prospect of energy storage application under energy internet background［J］. Electric Power Construction, 2016, 37（8）: 8-17.

［8］苏小林, 李丹丹, 阎晓霞, 等. 储能技术在电力系统中的应用分析［J］. 电力建设, 2016, 37（8）: 24-32.

SU Xiaolin, LI Dandan, YAN Xiaoxia, et al. Application analysis of energy storage technology in power system［J］. Electric Power Construction, 2016, 37（8）: 24-32.

［9］江全元, 龚裕仲. 储能技术辅助风电并网控制的应用综述［J］. 电网技术, 2015, 39（12）: 3360-3368.

JIANG Quanyuan, GONG Yuzhong. Review of wind power integration control with energy storage technology［J］. Power System Technology, 2015, 39（12）: 3360-3368.

［10］唐西胜. 储能在电力系统中的作用与运营模式［J］. 电力建设, 2016, 37（8）: 2-7.

TANG Xisheng. Applications and marketing mode of energy storages in power system［J］. Electric Power Construction, 2016, 37（8）: 2-7.

［11］ STORE D I, KNAP V, SWIERCZYNSKI M, et al. Operation of a grid-connected lithium-ion battery energy storage system for primary frequency regulation: A battery lifetime perspective［J］. IEEE Transactions on Industry Applications, 2017, 53（1）: 430-438.

［12］ WU L, CUI Z, Gao W, et al. A novel frequency regulation strategy with the application of energy storage system for large scale wind power integration［C］//Green Technologies Conference. New Orleans, LA, USA, 2015: 221-226.

［13］ SEBASTIAN R. Application of a battery energy storage for frequency regulation and peak shaving in a wind diesel power system［J］. IET Generation, Transmission & Distribution, 2016, 10（3）: 764-770.

［14］ KNAP V, CHAUDHARY S K, STROE D I, et al. Sizing of an energy storage system for grid inertial response and primary frequency reserve［J］. IEEE Transactions on Power Systems, 2016, 31（5）: 3447-3456.

［15］ TORRES L M A, LOPES L A C, MORN T L A, et al. Self-tuning virtual synchronous machine: a control strategy for energy storage systems to support dynamic frequency control［J］. IEEE Transactions on Energy Conversion, 2014, 29（4）: 833-840.

［16］ PULENDRAN S, TATE J E. Energy storage system control for prevention of transient under-frequency load shedding ［J］. IEEE Transactions on Smart Grid, 2017, 8（2）: 927-936.

［17］龚裕仲, 江全元, 汪海蛟. 考虑电网频率偏差的风电功率爬坡限制指标动态优化［J］. 电网技术, 2015, 39（9）: 2377-2384.

GONG Yuzhong, JIANG Quanyuan, WANG Haijiao. Dynamic optimization of wind power ramp limitation based on power system frequency deviation［J］. Power System Technology, 2015, 39（9）: 2377-2384.

［18］ DELILLE G, FRANOIS B, MALARANGE G. Dynamic frequency control support by energy storage to reduce the impact of wind and solar generation on isolated power systems inertia［J］. IEEE Transactions on Sustainable Energy, 2012, 3（4）: 931-939.

［19］ KUNDUR P. Power system stability and control［M］. NewYork: McGrawHill, 1994: 595-596.

［20］陶骞, 贺颖, 潘杨, 等. 电力系统频率分布特征及改进一次调频控制策略研究［J］. 电力系统保护与控制, 2016, 44（17）: 133-138.

TAO Qian, HE Ying, PAN Yang, et al. Characteristics of power system frequency abnormal distribution and improved primary frequency modulation control strategy ［J］. Power System Protection and Control, 2016, 44（17）: 133-138.

［21］张国玉, 洪超, 陈杜琳, 等. 面向储能电站调度的光储发电系统运行优化策略研究［J］. 电力工程技术, 2017, 36（3）: 50-56.

ZHANG Guoyu, HONG Chao, CHEN Dulin, et al. Operation optimization of photovoltaic-energy storage hybrid system based on scheduling of battery energy storage system［J］. Electric Power Engineering Technology, 2017, 36（3）: 50-56.

［22］ GONG Y, JIANG Q, BALDICK R. Ramp event forecast based wind power ramp control with energy storage system［J］. IEEE Transactions on Power Systems, 2016, 31（3）: 1831-1844.

［23］ ANDERSON P M, FOUAD A A. Power system control and stability［M］. Ames, Iowa: The Iowa State University Press, 1977.

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