EFFICIENCY OPTIMIZED MODEL-REFERENCE ADAPTIVE-CONTROL SYSTEM FOR A DC MOTOR

被引:8
作者
EGAMI, T
MORITA, H
TSUCHIYA, T
机构
[1] Department of Mechanical Engineering, Kanagawa University, Yokohama
[2] Department of Electrical Engineering, Hokkaido University, Sapporo
关键词
D O I
10.1109/41.45840
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The efficiency of a separated-excited dc motor is improved by controlling both armature current and field current simultaneously. The model reference adaptive control system (MRACS) may be useful for this control problem because parameter values and load disturbance (load torque) of controlled objects vastly change. In this paper, two adaptive control systems for efficiency-optimized speed control are proposed on the basis of MRACS theory and the “error system method.” Those are MRACS based on the current ratio method and on the voltage/current ratio method. In these systems, integral action is introduced into MRACS in order to cope with the step-load disturbance. Although a parameter variation of the voltage/current ratio MRACS method is large, the number of parameters to be adjusted is small as compared with that in the current ratio MRACS method. For each method, fast transient response and good characteristics are obtained for the parameter changes, step-load disturbance, and step-desired signal in simulation studies. Efficiency is considerably improved by these methods at a light load condition. © 1990 IEEE
引用
收藏
页码:28 / 33
页数:6
相关论文
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