Power electronic converters play a crucial role in robustly and efficiently integrating renewable energy resources (e.g., large solar power plants and wind farms) into the power grid. Electromagnetic transient (EMT) simulation of the power electronic converters and the connected grid provides the most accurate simulation results over a wide frequency range and is considered essential for managing today's complex power networks. As such, the latest guidelines from the North American Electric Reliability Corporation (NERC) require EMT models for all newly connected bulk power system (BPS) inverter-based resources (IBR). Due to the high computational burden required for accurate simulation of power electronic systems, many flavors of EMT converter models are being developed for conducting interconnection studies. In this tutorial, we will demonstrate the latest power electronic converter models used in interconnection studies through live simulation examples. Conclusions will also be drawn regarding the applicability of each power electronic model based on its accuracy, frequency range and computational efficiency. Both PSCAD and RTDS models will be discussed and demonstrated.
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