Z-source inverter control method, operation control device and air conditioner

The invention discloses a Z-source inverter control method, and relates to the technical field of circuit control, and the method comprises the steps: determining a current sampling starting moment; obtaining the maximum current sampling window time, wherein the maximum current sampling window time is the maximum time range for collecting current through the first sampling resistor, the second sampling resistor and the third sampling resistor; generating a target PWM modulation signal supporting the maximum current sampling window time according to the maximum current sampling window time, the current sampling starting moment and the current acquired by the first sampling resistor, the second sampling resistor and the third sampling resistor; and the IPM module is driven according to the target PWM modulation signal, so that the cost of the driving system can be reduced, and the reliability of current sampling of the system can be improved at the same time.