| Abstract |
In this paper, the optimum design method for various PLL servo systems which have been widely used for OA and FA fields is described. This design method is based on the "Partial Model Matching Method" proposed by Prof. Kitamori of the University of Tokyo. First, many kinds of PLL servo systems are classified into four groups. Next, the desired response to commands and disturbances is expressed with the reference models. Since these reference models adapt the expression based on step response, they are easy to understand for the designers. Finally, by comparing the transfer functions of PLL servo systems with these reference models, the serve parameters are determined. The simulated and experimental results for respective groups are shown, and it is confirmed that both results agree well. This design method is applied widely to the polygon mirror scanner serve used for copiers, scanner serves, main serves, drum drive servos and the AC servos for various automatic machines such as robots and others. |
