Title :
Double-fed asynchronous motor-generator equipped with a 3-level VSI cascade
Author :
Hodder, A. ; Simond, J.-J. ; Schwery, A.
Author_Institution :
Lab. of Electr. Machines, Swiss Fed. Inst. of Technol., Lausanne, Switzerland
Abstract :
The present paper investigates the complete regulation strategy for a large double-fed asynchronous motor-generator equipped with a 3-level VSI cascade for applications mainly in the field of pumped storage plant. For the present application, the specific problem of the DC link capacitors voltage balancing is investigated. Also a sensorless method for the determination of the rotor angle is proposed and verified in practice. Measurements of the system performed on a laboratory low power system are discussed and compared to simulations.
Keywords :
asynchronous generators; induction motor drives; invertors; laboratories; power capacitors; power system simulation; pumped-storage power stations; rotors; variable speed drives; 3-level VSI; DC link; adjustable speed drive; capacitor voltage balancing; double-fed asynchronous motor-generator; power system simulation; pumped storage plant; rotor angle; sensorless method; voltage source inverter; Capacitors; Energy storage; Fourier series; Frequency conversion; Laboratories; Power system economics; Power system simulation; Rotors; Transportation; Voltage;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348865
