Permanent magnet motor rotor temperature measurement method and permanent magnet motor capable of measuring rotor temperature

• Main Authors: ZHANG JIE, YAN CAISONG, LIU LONGHUI, ZHANG CHENGCHENG, FENG FAN, LIU HUAN, ZENG CHUN, KIM HAE-SUN
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention discloses a permanent magnet motor rotor temperature measurement method and a permanent magnet motor capable of measuring rotor temperature. The permanent magnet motor rotor temperature measurement method comprises the steps that a permanent magnet and/or a sheath are/is used as an object to be measured, and a channel is arranged between the object to be measured and an infrared temperature measurement probe arranged on a machine shell; and starting the infrared temperature measurement probe at a preset sampling frequency. According to the temperature measurement method for the permanent magnet motor rotor, the temperature of the rotor is monitored by directly measuring the permanent magnet and/or the sheath of the rotor through the infrared temperature measurement probe and the channel, non-contact temperature measurement of the rotor is achieved, and the problems of abrasion and poor contact of contact measurement are avoided; therefore, the method has the advantages of simple and convenient o