Heat sink design of high power converter

In this paper, heat sink design for a high power converter is presented. There are many ways of designing heat sinks, but air cooling is by far the most used and much more practical than any of the other methods. In this paper, the practical methods of cooling which include a method to reduce noise and vibration due to a fan, and the method to design a gap resistance and contact resistance due to mounting force between thyristor and heat sink, are proposed. Finally, simulation and experimental results are describe to verify validity of the proposed method.