Variable speed generator technology options for wind turbine generators
Abstract
The electrical system options for variable speed operation of a wind turbine generator were considered. Systems considered for large wind turbine generators were: (1) dc generator with line commutated inverted bridge; (2) synchronous generator with thyristor rectifier and inverter; (3) doubly fed induction generator with dc current link rectifier and inverter; (4) doubly fed induction generator with dc voltage link rectifier and inverter; and (5) doubly fed induction generator and cycloconverter. Those systems considered for smaller wind turbine generators were: (1) dc generator with copper based dc voltage link; (2) induction generator with dc voltage link; (3) induction generator with cycloconverter; (4) induction generator with high frequency link converter; and (5) permanent magnet generator configuration. The key operating characteristics of each system are discussed and the major advantages and disadvantages of each are identified.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1984
- Bibcode:
- 1984STIN...8519331L
- Keywords:
-
- Direct Current;
- Electric Generators;
- Induction Motors;
- Power Conditioning;
- Wind Turbines;
- Windpowered Generators;
- Commutators;
- Dc Generators;
- Direct Power Generators;
- Electric Choppers;
- Inverted Converters (Dc To Ac);
- Rectifiers;
- Thyristors;
- Voltage Converters (Dc To Dc);
- Electronics and Electrical Engineering