Steady state and transient thermal analysis of the stator coil of a permanent magnet generator

This paper presents the analytical thermal analysis of a permanent magnet generator stator coil. The analytical analysis consists of a lump parameter thermal network (LPTN) to predict the steady state and transient temperature of the coil module. In the steady state part the average temperature of different parts of the network are estimated by using the matrix inversion and an iterative loop. In the transient state, the temperature behavior of each node is calculated by the Runge-Kutta 4th order iteration method. In the final part, the experimental and analytical results are compared to each other.