Photovoltaic power supply system and control method therefor, and air conditioning unit

• Main Authors: CHEN, Ningning, WANG, Jing, YU, Xianqiao, DANG, Peiyu, HUANG, Meng
• Format: Patent
• Language: English
• Published: 09.02.2023
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; SYSTEMS FOR STORING ELECTRIC ENERGY; VENTILATING; WEAPONS

Disclosed are a photovoltaic power supply system and a control method therefor, and an air conditioning unit. The system comprises: a photovoltaic cell panel; a direct-current bus; a DC/DC converter, one end of which is connected to the photovoltaic cell panel, and the other end of which is connected to the direct-current bus; and a switch assembly arranged in parallel with the DC/DC converter, wherein one end of the switch assembly is connected to the photovoltaic cell panel, and the other end thereof is connected to the direct-current bus, and the switch assembly is used for controlling a grid connection mode of the photovoltaic cell panel. When the switch assembly is turned off, the photovoltaic cell panel is connected to the direct-current bus by means of the DC/DC converter; and when the switch assembly is turned on, the photovoltaic cell panel is directly connected to the direct-current bus.