Permanent magnet synchronous motor rotor temperature estimation method

The invention discloses a permanent magnet synchronous motor rotor temperature estimation method. The method comprises the following steps: S1, setting a threshold value; s2, collecting data in real time; s3, judging whether to calculate the estimated temperature of the motor rotor or not; s4, the e...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SI HONGLU, LIU LIPING, XI JIANMIN, DENG TAO, XIAO QINGSHUI, CHEN GUOLI, QIN MAOSHENG, PENG ZHIYUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a permanent magnet synchronous motor rotor temperature estimation method. The method comprises the following steps: S1, setting a threshold value; s2, collecting data in real time; s3, judging whether to calculate the estimated temperature of the motor rotor or not; s4, the estimated temperature of a motor rotor is calculated, and the shutdown duration of the motor is calculated; when the shutdown duration of the motor exceeds a shutdown duration threshold value of the motor, the environment temperature is lower than a first environment temperature threshold value, and the actual rotating speed of the motor is lower than a rotating speed threshold value of the motor, the minimum value between the motor cooling lubricating oil temperature and the motor stator winding temperature serves as the estimated temperature of a motor rotor; when the shutdown duration of the motor exceeds the shutdown duration threshold value of the motor and the environment temperature is higher than a second en