Affiliation:
1. School of Automation Science and Electrical Engineering Beihang University Beijing China
2. Beijing System Design Institute of Mechanical‐Electrical Engineering The fourth academy of CASIC Beijing China
Abstract
AbstractIn order for full utilization of the switching devices and safe continued operation of the power converter at the same time, the junction temperature of the switching devices needs to be accurately monitored without shutting down the motor drive. This paper derives an analytical junction temperature calculation method by using Laplace transformation and thermal network theory. Based on an actual motor drive, a simulation model is established using platform for power electronic systems (PLECS). Through comparison, the derived method is proven to be able to calculate junction temperature accurately.
Funder
National Natural Science Foundation of China
Aeronautical Science Foundation of China
Publisher
Institution of Engineering and Technology (IET)