摘要
风电等分布式电源大规模接入电网,使得电网的频率控制问题变得日益复杂。大量且分散的电动汽车通过集中式控制聚合在一起,具有提供频率调节服务的能力,为解决这一问题提供了新的途径。根据电动汽车的快速响应特性和能量受到约束的特点,通过巴特沃斯滤波器将调频信号分解,将其中的高频分量分配于电动汽车承担,同时电动汽车根据电池荷电状态按比例分配调节功率。通过单区域系统调频模型仿真,验证了策略的有效性,表明该策略能够发挥电动汽车的快速响应特点,对抑制频率偏差有显著作用。
As distributed power sources such as wind power are connected to power grid, frequency control of the grid becomes increasingly complex. A large number of dispersed electric vehicles, aggregated through centralized control, have the ability to offer frequency adjustment services, thus providing a new approach to solve this problem. According to the fast response characteristics and energy constrained feature of electric vehicles, the regulation signal is decomposed with Butterworth filter, in which the high frequency components are distributed to the electric vehicles. At the same time, the regulation power is allocated among electric vehicles according to the battery state of charge. Effectiveness of the strategy was verified with single-area system frequency control model simulation, showing that this strategy can exert the characteristics of fast response of electric vehicles with significant effect on suppression of frequency deviation.
作者
李家壮
艾欣
胡俊杰
LI Jiazhuang;AI Xin;HU Junjie(State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources (North China Electric Power University),Changping District,Beijing 102206,China)
出处
《电网技术》
EI
CSCD
北大核心
2019年第2期495-503,共9页
Power System Technology
基金
国家重点研发计划"智能电网技术与装备"重点专项"支撑低碳冬奥的智能电网综合示范工程"(2016YFB0900500)
北京市自然科学基金项目(3182037)
新能源电力系统国家重点实验室开放课题(LAPS18014)~~
关键词
电动汽车
二次调频
调频信号分解
控制策略
electric vehicle
supplementary frequency control
regulation signal decomposition
control strategy
作者简介
李家壮(1994),男,硕士研究生,主要研究方向为电力系统运行与控制,E—mail:ljz_ncepu@qq.com;艾欣(1964),男,教授,博士生导师,主要研究方向为新能源电力系统及微网,E-mail:aixin@ncepu.edu.cn;通信作者:胡俊杰(1986),男,副教授,硕士生导师,主要研究方向为新能源电力系统及微网,E-mail:junjiehu@ncepu.edu.cn。
