基于状态观测器的电源逆变器自适应控制系统设计  

Design of An Adaptive Control System Based on State Observer for Power Inverter

作　　者：龚旭 徐勇 吴炜 GONG Xu;XU Yong;WU Wei(School of Marine Engineering,Nantong Shipping College,Nantong 226010,China)

机构地区：[1]江苏航运职业技术学院交通工程学院,南通226010

出　　处：《江苏工程职业技术学院学报》2023年第2期6-11,共6页Journal of Jiangsu College of Engineering and Technology

基　　金：南通市科技局项目(编号:MSZ20190);南通市科技计划项目“基于多传感器信息融合的桥式起重机智能防摇控制技术研究”(编号:MS22022054)。

摘　　要：基于单相逆变器的数学模型设计了一种能保证系统渐近稳定的控制方案。方案根据李雅普诺夫(Lyapunov)稳定理论进行设计,利用观测器观测控制律中的状态变量,保证控制系统的稳定性以及输出电压跟踪误差的收敛性,并在此基础上提出一种基于状态观测器的单相逆变器的自适应控制策略。假设系统模型中参数未知,利用自适应观测器在线观测未知量,并且观测控制律中其他状态变量,保证了系统的稳定性。A control scheme which could ensure the asymptotic stability of the system was designed on the basis of the mathematical model of single-phase inverter.Combined with the theory of Lyapunov Stability,the scheme proposed an adaptive control strategy for single-phase inverter based on state observer by which state variables in control law were observed so as to ensure both the stability of the control system and the convergence of output voltage tracking errors.The stability was ensured by assuming the parameters unknown and using the adaptive observer to observe unknown variables and other state variables in the control law online.

关 键 词：逆变器 状态观测器 自适应控制器 在线观测 

分 类 号：TM464[电气工程—电器]