Control method of Z-source network inverter circuit of air conditioner and related equipment

• Main Authors: YAN XIAOJUN, FENG JUNPU, ZHANG JIENAN, BI RAN, WANG YANZHANG
• 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 network inverter circuit of an air conditioner and related equipment, the Z-source network inverter circuit comprises an X-type impedance network, a first IPM module used for supplying power to a first load and a second IPM module used for supplying power to a second load, and the input side of the X-type impedance network is connected with a power input module. The first IPM module and the second IPM module share a bus and are connected to the output side of the X-type impedance network; the control method comprises the steps that when the air conditioner operates in a refrigeration mode or a heating mode, operation parameters of a first load and/or a second load are/is obtained; a target IPM module is determined from the first IPM module and the second IPM module according to the operation parameters, and the target IPM module is driven according to a target PWM modulation signal with a straight-through zero vector, so that the output side voltage of th