Studies on Computer-Aided Design of Microprocessor Controlled Precise AC Servo Systems.

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Robust and maintenance free induction motors, used in every movable portion of engineering, have seen new drive technologies based on power electronics, control schemes, and microprocessor implementation techniques. This was led to the inevitable need of computer-aided design environment for higher reliability and efficiency in more complex design process. The following research has been carried out:1. Design method of precise AC servo systems has been investigated. Theoretical basis for vector control is given in circuit theory context which is suitable for both qualitative analysis and coputer-aided procedural applications.2. Computer-aided design method has been studied. General and efficient CAD methods have been investigated based on sparsity technique, decomposition technique and discretization technique to cope with electronic-mechanical control system analysis. The proposed method has been implemented into a new CAD environment.3. Those CAD tool environment was applied to the real design of precise AC servo system, and the result was verified experimentally.