Rayk Grune
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View article: Power-Hardware Design and Topologies of Converter-Based Grid Emulators for Wind Turbines
Power-Hardware Design and Topologies of Converter-Based Grid Emulators for Wind Turbines Open
Power-electronic-based grid emulators (GEs) emerge as a favorable method for testing grid-code compliances of wind turbines (WTs), thanks to their full controllability and improved efficiency. To accommodate the increasing power and voltag…
View article: Validation of Wind Turbine Models Based on Test Bench Measurements: A System for Theoretical Representation of the Grid Replica
Validation of Wind Turbine Models Based on Test Bench Measurements: A System for Theoretical Representation of the Grid Replica Open
In recent years, nacelle test benches for wind turbines have been developed internationally. New standards are currently being developed that explicitly refer to the measurement of the electrical properties of wind turbines on these test b…
View article: Medium-Voltage Megawatt Power-Electronic-Based Grid Emulators: Testing Capability Requirements and Dynamics Challenges—A Review
Medium-Voltage Megawatt Power-Electronic-Based Grid Emulators: Testing Capability Requirements and Dynamics Challenges—A Review Open
Power-electronic-based grid emulators are emerging as a promising way to test the grid-code compliance of renewable energy resources. Yet, the ever-increasing power and voltage levels of device under test (DUT) pose new requirements and ch…
View article: A discussion on the characterization of grid emulators by apparent power rating and short-circuit power
A discussion on the characterization of grid emulators by apparent power rating and short-circuit power Open
Wind turbines are a driving force in the change towards renewable energies today. Offshore wind turbines have reached power ratings around 15 MW, and the growth continues. Grid emulators have become inevitable for the test and validation o…
View article: Influence of the grid parameters during under voltage ride through (UVRT) testing
Influence of the grid parameters during under voltage ride through (UVRT) testing Open
Under-voltage ride through (UVRT) tests can be carried out on system test benches, most of them are equipped with a converter based grid simulator. This paper describes the control of the artificial grid impedance at the 4 MW test bench at…