10.5281/zenodo.1055727
https://zenodo.org/records/1055727
oai:zenodo.org:1055727
Aziza Benaboud
Aziza Benaboud
Alfred Rufer
Alfred Rufer
Power Electronic Solution for High Energetic Efficiency of a Thermo Plant
Zenodo
2013
Angle shift
high efficiency
indirect converter
gas turbine
NPC three level converter
square wave modulation SWM
switching angle.
2013-01-29
eng
10.5281/zenodo.1055726
https://zenodo.org/communities/waset
1720
Creative Commons Attribution 4.0 International
In this paper the authors propose a flexible electronic solution, to improve the energetic efficiency of a thermo plant. This is achieved by replacing the mechanical gear box, placed traditionally between a gas turbine and a synchronous generator; by a power electronic converter. After reminding problematic of gear boxes and interest of a proposed electronic solution in high power plants, the authors describe a new control strategy for an indirect frequency converter, which is characterized by its high efficiency due to the use of SWM: Square Wave Modulation. The main advantage of this mode is the quasi absence of switching losses. A control method is also proposed to resolve some problems incurred by using square wave modulation, in particular to reduce the harmonics distortion of the output inverter voltage and current. Simulation examples as well as experimental results are included.