Photovoltaic direct current insulation monitoring device

• Main Authors: HAN DONGMEI, FENG YANGGUANG, LUO RONGHUI, GUO CHANGHONG, QI AO, JIA XIAODONG
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model provides a photovoltaic direct-current insulation monitoring device. The photovoltaic direct-current insulation monitoring device comprises a direct-current power supply; an inverter; a rectifier; a filter; an insulation monitoring module; wherein the direct-current power supply is located at the top of the photovoltaic direct-current insulation monitoring device and is connected with the inverter through a wire; the inverter is located at the bottom of the photovoltaic direct current insulation monitoring device and is separated from the rectifier through a first isolation layer; the rectifier is packaged by a metal shell, and a shielding structure is arranged in the rectifier; connecting wires among the direct-current power supply, the inverter, the rectifier, the filter and the insulation monitoring module are connected through shielding cables, and shielding covers are added at the joints of the wires. According to the scheme of the utility model, the interference of electromagnetic inte