Complex Zero Compensation for Classical Controls Systems Design
Forward path compensation continues to be widely used in the design of control systems. In initiating the design using the frequency response method, a straight line Bode plot of the magnitude of the desired open-loop frequency response is typically drawn. The ability of the compensator to accurately realize this frequency response has a direct influence on the system response. Specifically, system stability and bandwidth are affected by how closely the final frequency response magnitude approaches the desired straight line plot at the first break frequency. That is, at the first break frequency, increasing the transition rate of the magnitude curve with frequency results in a control system having correspondingly greater bandwidth or stability. It is desirable to have a high transition rate for a fast system response, and conventional real zero compensators cannot provide a high transition rate. A complex zero compensator has been designed to provide a high transition rate. An example demonstrates the advantage of using the complex zero compensator. An analog circuit prototype using the complex zero compensator has been built and tested to confirm analytically predicted results.
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Master of Science (M.S.)
College of Engineering
Length of Campus-only Access
Masters Thesis (Open Access)
Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic
Le, Chau B., "Complex Zero Compensation for Classical Controls Systems Design" (1990). Retrospective Theses and Dissertations. 4024.