CAJ | 학술논문

与经典的PID控制器不同，模糊控制不需要获取系统精确的数学模型．根据系统的要求，设计模糊控制器，以给定参考电压与实际电压之间的偏差及其微分作为输入，通过合理的推理规则，得到占空比输出，去控制开关管的开关时间．论述了模糊控制器的详细设计过程，以及在MATLAB中建立仿真模型的过程．仿真结果表明系统具有较好的稳态和动态性能．
여경전적PID공제기불동，모호공제불수요획취계통정학적수학모형．근거계통적요구，설계모호공제기，이급정삼고전압여실제전압지간적편차급기미분작위수입，통과합리적추리규칙，득도점공비수출，거공제개관관적개관시간．논술료모호공제기적상세설계과정，이급재MATLAB중건립방진모형적과정．방진결과표명계통구유교호적은태화동태성능．
The research of a DC-DC switched mode power supply based on fuzzy control, which is different from classic PID control, and does not require accurate mathematical model of system, is introduced. The fuzzy controller is designed according to the system＇s requirements. The error between the reference voltage and the practical output voltage, and the differential of error are set as the input of the controller. According to proper rules, the output of the controller-duty cycle is obtained to controller the switch. The design process and the simulation model in MATLAB of the fuzzy controller are introduced in detail. The simulation results show that the system works with good stability and dynamic properties.