新能源储能微电网惯量支撑性能研究
Research on Inertia Support Performance of New Energy Storage Microgrid
卢军 1杨沛豪 2何凯琳3
作者信息
- 1. 长沙民政职业技术学院通识教育中心,长沙 410004
- 2. 西安交通大学电气工程学院,西安 710049;西安热工研究院有限公司,西安 710054
- 3. 中国能源建设集团西北电力试验研究院有限公司,西安 710054
- 折叠
摘要
针对传统虚拟惯量控制无法在频率恢复阶段使直流母线电压恢复至额定的问题,提出 1 种采用高通滤波器的虚拟惯量控制方法.MATLAB/Simulink仿真结果表明,直流母线电压变化可以反应微电网实时频率,新型虚拟惯量控制策略可以保证频率变化全过程稳定,在频率恢复阶段减小虚拟惯量加快频率恢复,为后续频率调节提供充足时间裕度.高通滤波器虚拟惯量控制方法可以使直流母线电压恢复至初值,在不改变超级电容储能惯量支撑的基础上,使新能源储能微电网保持直流母线电压稳定.
Abstract
Aimed at the problem that the traditional virtual inertia control method cannot restore the DC bus voltage to its rated value at the frequency recovery stage,a virtual inertia control method using a high-pass filter is proposed.MATLAB/Simulink simulation results show that the changes in DC bus voltage can reflect the microgrid frequency in real-time,and the novel virtual inertia control strategy can ensure the frequency stability in the entire changing process.At the frequency recovery stage,the virtual inertia is reduced to accelerate the frequency recovery,providing sufficient time margin for subsequent frequency adjustment.The high-pass filter virtual inertia control method can restore the DC bus voltage to its initial value and maintain the DC bus voltage stability of the new energy storage microgrid without changing the inertia support of the super capacitor energy storage.
关键词
新能源储能微电网/超级电容/惯量支撑/虚拟惯量/高通滤波器Key words
New energy storage microgrid/super capacitor/inertia support/virtual inertia/high-pass filter引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据