The real power electronic device contains both the signal level controller and circuit components such as power electronic switches, inductors and capacitors. Due to the advantages of the real-time simulator, engineers also would like to test the power electronic devices with it. However, the challenge is that the real-time simulator usually only has the signal level interface, which means it can't be connected to the power devices directly. With the development of power amplifier technology, the power amplifier has better response speed and higher power level, it can be used to bridge the real-time simulator and the power electronic device.

StarSim Based Solutions

StarSim PHIL system structure is shown as below:

The test system above consists of the real-time simulator, the power amplifier and the power electronic device. The power electronic device is generally modeled as controlled current sources in the real-time simulator; the power amplifier amplifies the voltage from the simulator to drive the power electronic device; the sensor collects and feeds back the voltage and the current information of the power electronic device to the real-time simulator. PHIL system has the advantages of the real-time simulator as well as the power interface to connect with the power electronic device, therefore it is widely used in the research and test of power electronics industry.