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

• Main Authors: YAN XIAOJUN, LIU WENLONG, FENG JUNPU, BI RAN
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BLASTING; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention discloses a control method of a Z-source inverter, and relates to the technical field of circuit control, and the method comprises the steps: generating an initial PWM modulation signal used for driving an IPM module according to a target voltage vector and a bus current collected by a sampling resistor; obtaining a first action time of a first voltage component of the target voltage vector and a second action time of a second voltage component of the target voltage vector; and according to the first action time, the second action time and a preset current sampling window time, performing phase adjustment on the initial PWM modulation signal to obtain a target PWM modulation signal supporting the current sampling window time, the current sampling window time is a time range for collecting bus current through the 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 the system ca