Comparison of Linear and Switched Amplifier Power-Hardware-in-the-Loop-Based Emulators for the Stator Inter-turn fault of an Induction Motor

This paper discusses comparison of power-hardware-in-the-loop (PHIL) emulation of linear amplifier vis-a-vis switched amplifier. An improved mathematical model is developed for stator inter turn fault of induction motor. Emulation of the inter-turn fault of induction motor is done by using linear amplifier as well as switched amplifier with the improved mathematical model. With PHIL based emulation, the faulted induction machine is emulated in a laboratory environment with real time power flow. Experimental studies are carried out and comparative analysis is done. Suitability and comparison of both types of emulators are discussed.