Abstract
The complexity of modern power system phenomena challenges power system protection testing to obtain the required adequacy of the testing environment before actual implementation. Consequently, a virtual hardware-in-the-loop (HIL) testing platform for line protection is developed and tested in this chapter. The distance protective relay is tested using a real-time HIL simulation validated by theory-based calculation and DIgSILENT PowerFactory software with three-phase and single-line-to-ground short-circuit fault cases. A methodology of creating virtual HIL distance protection relay based on Typhoon HIL (framework for the testing real-time embedded system) is proposed to allow protection engineers to access the performance of the protective relay without concerns related to hardware or physical device.
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