The support system for testing the power converters: The system of water cooling / heating

The article deals with the design of a liquid automated cooling/heating system which is designed as the support system that enables the testing of power semiconductor converters in the various temperature regimes. The basic function of the system is to maintain of the temperature of the cooling/heating medium in the required ranges. The article consists of the proposal of hydraulic circuit, the proposal of power electronics, the proposal of motion control and HMI interface. In the conclusion there are mentioned the results of realized measurements on the physical device and they are confronted with theoretical assumptions.