基于频率自适应滑模观测器的并网逆变器直流功率控制  

DC Power Control of Grid-connected Inverter Based on Frequency Adaptive Sliding Mode Observer

作　　者：刘向辰 马晓婧 Liu Xiangchen;Ma Xiaojing

机构地区：[1]兰州石化职业技术大学汽车工程学院,兰州730060

出　　处：《上海电气技术》2022年第3期10-13,共4页Journal of Shanghai Electric Technology

摘　　要：在电力系统正常运行过程中,网侧电压频率会出现一定幅度波动,会影响并网逆变器直流功率控制的稳定性。针对这一问题,提出一种基于频率自适应滑模观测器的并网逆变器直流功率控制策略。介绍了这一策略的原理,并进行了仿真与试验分析。这一策略能够有效抑制网侧电压频率波动对并网逆变器直流功率控制的影响,提高并网系统的稳定性和抗频率干扰能力。In the normal operation of the power system,the voltage frequency on the grid side will fluctuate by a certain amplitude,which will affect the stability of the DC power control of the grid-connected inverter.Aiming at this problem,a DC power control strategy for grid-connected inverter based on frequency adaptive sliding mode observer was proposed.The principle of this strategy was introduced,and simulation and experimental analysis were performed.This strategy can effectively suppress the influence of grid-side voltage frequency fluctuation on the DC power control of the grid-connected inverter,and improve the stability and anti-frequency interference ability of the grid-connected system.

关 键 词：滑模观测器 并网逆变器 直流功率 控制 

分 类 号：TM464[电气工程—电器]