Title :
Power electronics interface for a 100 W, 500000 rpm gas turbine portable power unit
Author :
Zwyssig, C. ; Round, S.D. ; Kolar, J.W.
Author_Institution :
Swiss Fed. Inst. of Technol. Zurich, Switzerland
Abstract :
A 100 W, 500000 rpm generator/starter for a gas turbine based portable power unit has been constructed. The permanent magnetic synchronous machine has an 8 kHz fundamental frequency and stator inductance of 3 μH. The traditional voltage source inverter, VSI, is not an automatic choice for this type of machine due to the very high switching frequencies required. In this paper, voltage and current source topologies are compared for physical size, complexity and efficiency. Three topologies are selected for further investigation: the VSI with external inductances and high switching frequency, the VSI with block commutation and the current source inverter with block commutation. The paper presents the topology comparison, VSI design and experimental performance.
Keywords :
gas turbines; invertors; permanent magnet generators; synchronous machines; 100 W; 8 kHz; block commutation; current source inverter; current source topology; gas turbine generator; permanent magnetic synchronous machine; portable power unit; power electronics interface; switching frequencies; voltage source inverter; voltage source topology; Commutation; Inverters; Power electronics; Power generation; Stators; Switching frequency; Synchronous machines; Topology; Turbines; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620552
