Abstract: Aiming at the characteristics of wide frequency range and variable use environment of household inverter air conditioners, several commonly used frequency control techniques are studied. Simultaneously, a simulation system is constructed to simulate and compare the control effects under different deviations. The simulation results show that the fuzzy-PID control has advantages in response speed, overshoot, stability, control accuracy, and has broad application prospects in inverter air conditioner frequency control.

Key words: Inverter air conditioner, Frequency control, PID control, Fuzzy control, Fuzzy-PID