FREQUENCY CONVERTER COOLING SYSTEM, APPARATUS IN WHICH FREQUENCY CONVERTER IS APPLIED, AND COOLING CONTROL METHOD

• Main Authors: YANG, Xing, HUANG, Yizhi, HU, Jiaxi, LI, Jia, YANG, Zhuo, LUO, He, ZHANG, Zhe, QIN, Canhua, LIU, Yuxin, GAO, Lushan, HE, Yaping, GUO, Shihui, DENG, Ming, MA, Ming, HAN, Zhicheng, LI, Yu, HUANG, Qizhao, AO, En, WEN, Liang, MENG, Wenhui
• Format: Patent
• Language: English; French; German
• Published: 29.06.2022
• Subjects: BLASTING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; COMBINED HEATING AND REFRIGERATION SYSTEMS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PRINTED CIRCUITS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

Disclosed are a variable-frequency transmission cooling system, an apparatus in which a frequency converter is applied, and a cooling control method. The system comprises: a frequency converter cooling flow path, which comprises a first liquid-taking flow path, a first heat exchange assembly (4) and a first liquid-returning flow path, and performs heat exchange with a frequency converter assembly by means of the first heat exchange assembly (4); a first control device (21), which is arranged on the first liquid-taking flow path and/or the first liquid-returning flow path; a second control device (12), which is arranged on the first liquid-returning flow path; and a controller assembly, which is electrically connected to the frequency converter assembly, the first control device and the second control device, is used for ensuring that a frequency converter works at an adaptive temperature, and moreover, can further effectively adjust a front-back pressure difference of the frequency converter and solve problems such as condensation and overtemperature under extreme working conditions.