PROJECT TITLE :
Trip Curves and Ride-Through Evaluation for Power Electronic Devices in Power System Dynamic Studies
ABSTRACT:
Power Electronic devices are widely utilized in power grid related to masses and renewable energy sources. With increasing penetration levels of those devices, their response characteristics to short-circuit events will have significant impact on Power System dynamics. Power Electronic devices are sensitive to voltage sags; they might trip off line beneath severe voltage disturbances. The ride-through capability of those devices determines if they will remain on-line. In this paper, a generic technique is proposed on how to evaluate the ride-through capability of Power Electronic devices through trip curves. This technique could be a 2-step procedure. Step 1 is to form a trip curve of the device. Step two is to conduct a ride-through evaluation primarily based on the created trip curve and a brief-circuit study. Making a visit curve for a explicit type of Power Electronic devices is crucial and challenging. Three case studies are demonstrated during this paper on the trip curve creation for variable-frequency drives, dc drives, and solar photovoltaic inverters based mostly on native and international standards, power grid interconnection requirements, and manufacturer specifications. The proposed technique will serve as a general guideline for the trip curve creation for Power Electronic devices.
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