Abstract
A linearized model of the phase-shifted series resonant converter is necessary for closed loop design. With fixed PI control design, the converter does not have good disturbance rejection capability and cannot always cope with a wide range of uncertainties. In this paper, a PI self-tuning mechanism based on a fuzzy logic scheme is proposed. It corrects the PI gains, initially designed using small-signal modeling, to improve converter dynamic response and disturbance rejection. The algorithm is based on continuous change/adaptation of the PI gains until best dynamic response is achieved. Simulation results compare responses for the PI fixed parameters with the fuzzy-adapted controller gains under different disturbance conditions.
Original language | English |
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Title of host publication | 2011 International Conference on Power Engineering, Energy and Electrical Drives |
Publisher | IEEE |
Number of pages | 6 |
ISBN (Print) | 978-1-4244-9845-1 |
DOIs | |
Publication status | Published - 2011 |
Keywords
- fuzzy logic
- voltage control
- mathematical model
- heuristic algorithms
- algorithm design and analysis
- control systems
- fuzzy control