基于模糊自整定控制的400Hz逆变电源系统  

Research for 400 Hz Inverter System Based on the Fuzzy Self-tuning Control

作　　者：丛艳娟[1] 李敏远[1] 

机构地区：[1]西安理工大学自动化与信息工程学院,陕西西安710048

出　　处：《电力电子技术》2011年第5期95-97,共3页Power Electronics

摘　　要：针对400 Hz中频逆变电源系统带非线性负载时波形畸变及负载切换时系统的动态响应慢等问题,提出了一种组合式单输入模糊自整定控制与多环反馈控制相结合的复合控制策略。通过分析逆变系统负载模型,确定了采用不基于系统数学模型的模糊参数自整定控制,对电压环比例因子进行在线整定。利用Matlab/Simulink对组合式单输入模糊控制器进行了仿真,结果证明该控制器与双输入模糊控制器有相同的控制效果。最后将该复合控制策略应用在2 kVA的逆变电源实验样机上。实验结果表明,该控制方案对逆变系统的非线性负载有很好的抑制作用,同时体现了良好的稳态性能。According to the problem of the waveform distortion with nonlinear load and slow dynamic response of the 400 Hz middle frequency inverter system,a compound control strategy combines the single input of the fuzzy self-tun-ing control with multiple loop control is proposed.By analysing the load model of inverter system,it is confirmed to apply that which is not based on the mathematical model of the system parameter fuzzy self-tuning control for on-line setting of the voltage loop factor.With Matlab/Simulink,the combined single-input fuzzy logic controller is simulated,and proves that it has the same control effect with double inputs fuzzy controller.Finally this compound control strate-gy is tested on the 2 kVA inverter power supply,and the experimental results show that this control scheme has a good inhibitory effect with the nonlinear load,as well as a good state performance.

关 键 词：逆变电源 模糊自整定 组合式单输入 非线性负载 

分 类 号：TN86[电子电信—信息与通信工程]