变论域自组织模糊PID控制在逆变电源中的应用

被引:7
作者
黄冬梅 [1 ]
程树康 [2 ]
李军 [1 ]
机构
[1] 哈尔滨职业技术学院电气工程系
[2] 哈尔滨工业大学电气工程学院
关键词
可变论域; 自组织模糊PID控制; 逆变;
D O I
暂无
中图分类号
TM464 [逆变器]; TM762 [电气设备的自动控制];
学科分类号
080801 ; 080802 ;
摘要
模糊控制器对于要求响应速度快、稳态精度高的高性能逆变电源系统难以实现有效控制,因此提出了一种基于可变论域思想的自组织模糊PID控制的新方法。可变论域思想主要是输入论域可变,用α和β作为误差和误差变化率的调节因子,该数值随误差和误差变化率的减小而减小,进而增加模糊控制规则,由模糊推理得到中间控制量P,再与采样周期对系统PID控制参数进行组合得到新的PID控制参数。应用Matlab仿真常见的模糊逻辑PID阶跃响应曲线,效果良好。该方法应用在逆变电源系统中,可保证系统具有较高的稳态精度和良好的动态特性。
引用
收藏
页码:45 / 47
页数:3
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