Tvindkraft: Implementing a 500 kW 21-IGBT-based frequency converter for a 1.7 MW wind power conversion system

摘要

The 54-meter-high Tvindkraft windmill was built by a group of volunteers during 1975–1978, as an argument for renewable energy sources as well as an argument against nuclear power. At that time it was the world's biggest windmill. So far, Tvindkraft has been running for 35 years, proving that a well-constructed wind turbine is a sustainable approach to renewable energy utilization. This paper deals with the analysis, simulation, implementation and experimental testing of a new 500 kW 21-IGBT-based frequency converter that will run in parallel with the former 12-Thyristor-based frequency converter to fully utilize the capacity of the windmill. Simulations and experimental results are presented side-by-side to verify the proper functionalities of the frequency converter described in this paper.