Slip frequency phase lock loop (PLL) for decoupled P-Q control of doubly-fed induction generator (DFIG)
- 24 May 2005
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 80-85 Vol. 1
- https://doi.org/10.1109/iecon.2004.1433288
Abstract
The paper describes an innovative slip frequency phase lock loop (PLL) which measures the rotor frequency /spl omega//sub R/ and the rotor speed /spl omega//sub m/ of a doubly-fed induction generator (DFIG). Both information are required in implementing sensorless control of DFIGs by rotor-side voltage-source converters. For decoupled P-Q control, it is necessary to align the rotor /spl gamma/-/spl delta/ axes to the axes of the stator. A new /spl gamma/-/spl delta/ axes aligner is also proposed. The information extracted are: (i) the rotor position (/spl omega//sub m/t+/spl delta//sub m/), (ii) the rotor speed /spl omega//sub m/, (Hi) the rotor frequency /spl omega//sub R/. Proofs of concepts and proofs of decoupled P-Q control of a wind turbine driven DFIG are presented from simulation studies.Keywords
This publication has 5 references indexed in Scilit:
- Control and performance of a doubly-fed induction machine intended for a flywheel energy storage systemIEEE Transactions on Power Electronics, 2002
- A simple position-sensorless algorithm for rotor-side field-oriented control of wound-rotor induction machineIEEE Transactions on Industrial Electronics, 2001
- Double-fed induction machine: converter optimisation and field oriented control without position sensorIEE Proceedings - Electric Power Applications, 1998
- Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generationIEE Proceedings - Electric Power Applications, 1996
- Torque and reactive power control of a doubly fed induction machine by position sensorless schemeIEEE Transactions on Industry Applications, 1995