摘要
针对传统脉冲负载下电网储能电池容量配置方法调频能力差、频率波动大的问题,研究了一种新的脉冲负载下电网储能电池最优容量配置方法。分析脉冲负载下电网储能电池多角度最优容量,判定储能电池的容量、有效功率、充放电速率,研究储能电池最优容量倍率特性,对脉冲负载下电网储能电池参与脉冲负载下电网进行两次调配,进而去除调频死区,实现电网储能电池最优容量配置。与传统方法进行实验对比,结果表明,研究的最优容量配置方法在负载脉冲下具有很强的电网调频能力,调频频率波动更小,为电网储能电池最优容量配置方法提供有利科学依据。
To address poor frequency modulation capability and large frequency fluctuation in the traditional power grid energy storage battery capacity configuration under pulse load,a new optimal capacity configuration method for the power grid energy storage battery under pulse load is presented in this paper. The optimal capacity of the power grid energy storage battery under pulse load under multiple perspectives is analyzed;the capacity, effective power and charge and discharge rate of the energy storage battery is determined;the rate characteristics of the energy storage battery’s optimal capacity is researched;and the power grid energy battery under pulse load participating in the power grid is allocated twice to remove the dead zone of frequency regulation,thus the optimum grid energy storage battery capacity configuration is realized. The experimental results show that compared with the traditional method,the optimal capacity allocation method in this study has a strong power grid frequency modulation capability under load pulse,and the frequency fluctuation of frequency modulation is smaller,which provides a favorable scientific basis for the optimal capacity allocation method of power grid energy storage battery.
作者
余中平
关洪浩
孟高军
YU Zhongping;GUAN Honghao;MENG Gaojun(Economic Research Institute,State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830011,Xinjiang,China;Jiangsu Collaborative Innovation Center for Smart Distribution Network,Nanjing 211100,Jiangsu,China)
出处
《电网与清洁能源》
2020年第9期122-126,共5页
Power System and Clean Energy
基金
国家自然科学基金项目(51277157)。
关键词
脉冲负载
电网储能
电池最优容量
容量配置
pulse load
power grid energy storage
optimal battery capacity
capacity allocation
