| This thesis presents description, steady state analysis, modeling and digital control design of a single-phase current-source inverter (CSI) power supply system.A detailed power circuit and controller description of the proposed power supply system are given. Simplified steady-state analysis, neglecting the higher order harmonics of the system is performed, verified by PECAN. Continuous-time state-space model of the system, continuous-time, discrete-time and deterministic-autoregressive-moving-average models of a single-phase CSI are derived. The modeling procdure is verified by computer simulation and by PECAN. An adaptive controller for CSI is designed in order to obtain fast transient response and low total harmonic distortion of the output voltage waveform. An adaptive controller for DC-chopper is designed in order to reduce the DC-link inductor and optimize its dynamic performance. DC-link and output filter design is performed and systematic design procedure with a design example are presented and verified with the computer simulation. |
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