Title :
Current controller design for an electromagnetic actuator using an online parameter optimization approach
Author :
Frangos, C. ; Yavin, Y.
Author_Institution :
Dept. of Electr. Eng., Pretoria Univ., South Africa
fDate :
2/1/1991 12:00:00 AM
Abstract :
The design is presented of a digital proportional-plus-integral current controller for a nonlinear electromagnetic actuator using an online parameter optimization approach. The minimization algorithm of J.A. Nelder and R. Mead (1965) is used to calculate the proportional and integral controller gain such that a design objective function is minimized. At each iteration of the minimization procedure, the objective function is calculated by sampling the actual current and voltage signals of the actuator
Keywords :
control system synthesis; controllers; digital control; electric actuators; electric current control; electromagnetic devices; optimisation; three-term control; digital proportional-plus-integral current controller; electromagnetic actuator; minimization algorithm; nonlinear electromagnetic actuator; online parameter optimization; Control nonlinearities; Control systems; Design optimization; Electromagnetic forces; Intelligent actuators; Minimization methods; Nonlinear control systems; Pi control; Sampling methods; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
