| Citation: | ZHANG S，HAN X W，LI R P，et al. Improved remote regulated power supply control scheme in improved flyback converter[J]. Journal of Beijing University of Aeronautics and Astronautics，2024，50（4）：1229-1239 （in Chinese） doi: 10.13700/j.bh.1001-5965.2022.0458
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In order to improve the power supply quality of the remote regulated power supply and ensure that the output voltage of the transmitter device reaches the set value quickly and smoothly under the premise of high reliability, a design method of the remote regulated power supply in the flyback topology mode is introduced, and the corresponding mathematical model is established. Here, a fuzzy proportional-integral-derivative (PID) control algorithm for pre-domain tuning is presented. It uses fuzzy logic to process the dynamic parameter value of the remote regulated power supply in real time, and it maps the generated quantitative value to the control element in accordance with the anti-fuzzy mapping function. This effectively avoids the phenomenon of over-adjustment and eliminates the accidentality of the trial method and the amplification effect of the scale factor on the error. According to simulation results, the fuzzy PID control algorithm with pre-domain tuning performs better in steady-state conditions than the fuzzy PID control algorithm without pre-domain tuning. The adjustment time, response time, and reduction to 1.4 ms are all shortened by 48.1%, 28.6%, and 37.5%, respectively, while the control scheme is also able to withstand abrupt interference with good effectiveness. The experimental results show that the pre-tuned fuzzy PID control algorithm can be applied to the actual industrial environment, and compared with the traditional control algorithm in the industrial environment, the pre-tuned fuzzy PID control algorithm can greatly improve the power supply quality of the remote regulated power supply and has excellent robustness.
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