Abstract
This paper includes the experimental and simulated results of variable speed control of a synchronous generator. To achieve controlled variable speed operation, the synchronous generator is loaded with a three phase rectifier and a boost converter. The terminal voltage of the generator can be controlled from the converter’s duty cycle if output voltage of the converter is kept constant. This constant voltage is achieved with the help of a grid side inverter. As the speed and the terminal voltage of the generator are directly related to each other, its speed can be controlled for a given torque. An experimental setup of a 7.5kVA generator is prepared to verify system response. Some interesting aspects concerning distributed capacitance of the generator winding and non-linear speed vs duty-cycle response are observed. Cause and effect of such problems are discussed in this paper. Efficiency measurement showed some promising results and the overall system response is found positive. Also a Matlab simulation is performed for single turbine system including grid side inverter. The results are presented here in brief.
| Original language | English |
|---|---|
| Title of host publication | EWEC2008 |
| Number of pages | 191 |
| Volume | Scientific Proceedings |
| Place of Publication | Brussels, Belgium |
| Publisher | European Wind Energy Association (EWEA) |
| Publication date | 2008 |
| Edition | 1 |
| Publication status | Published - 2008 |
| Event | 2008 European Wind Energy Conference and Exhibition - Brussels, Belgium Duration: 31 Mar 2008 → 3 Apr 2008 |
Conference
| Conference | 2008 European Wind Energy Conference and Exhibition |
|---|---|
| Country/Territory | Belgium |
| City | Brussels |
| Period | 31/03/2008 → 03/04/2008 |
Keywords
- synchronous generator
- variable speed
- wind turbines
- boost converter