Direct active and reactive power control of DFIG for wind energy generation

L. Xu, P. Cartwright

Research output: Contribution to journalArticle

562 Citations (Scopus)

Abstract

This paper presents a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system. The strategy is based on the direct control of stator active and reactive power by selecting appropriate voltage vectors on the rotor side. It is found that the initial rotor flux has no impact on the changes of the stator active and reactive power. The proposed method only utilizes the estimated stator flux so as to remove the difficulties associated with rotor flux estimation. The principles of this method are described in detail in this paper. The only machine parameter required by the proposed DPC method is the stator resistance whose impact on the system performance is found to be negligible. Simulation results on a 2 MW DFIG system are provided to demonstrate the effectiveness and robustness of the proposed control strategy during variations of active and reactive power, rotor speed, machine parameters, and converter dc link voltage.
Original languageEnglish
Pages (from-to)750-758
Number of pages9
JournalIEEE Transactions on Energy Conversion
Volume21
Issue number3
DOIs
Publication statusPublished - Sep 2006

Fingerprint

Asynchronous generators
Reactive power
Power control
Wind power
Stators
Rotors
Fluxes
Impact resistance
Electric potential

Keywords

  • induction generators
  • power control
  • reactive power
  • robust control
  • rotors
  • stators
  • system performance
  • voltage control
  • wind energy generation
  • direct power control
  • direct torque control
  • Doubly fed induction generator
  • voltage source convertor
  • voltage vector

Cite this

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title = "Direct active and reactive power control of DFIG for wind energy generation",
abstract = "This paper presents a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system. The strategy is based on the direct control of stator active and reactive power by selecting appropriate voltage vectors on the rotor side. It is found that the initial rotor flux has no impact on the changes of the stator active and reactive power. The proposed method only utilizes the estimated stator flux so as to remove the difficulties associated with rotor flux estimation. The principles of this method are described in detail in this paper. The only machine parameter required by the proposed DPC method is the stator resistance whose impact on the system performance is found to be negligible. Simulation results on a 2 MW DFIG system are provided to demonstrate the effectiveness and robustness of the proposed control strategy during variations of active and reactive power, rotor speed, machine parameters, and converter dc link voltage.",
keywords = "induction generators, power control, reactive power, robust control, rotors, stators, system performance, voltage control, wind energy generation, direct power control, direct torque control, Doubly fed induction generator, voltage source convertor, voltage vector",
author = "L. Xu and P. Cartwright",
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Direct active and reactive power control of DFIG for wind energy generation. / Xu, L.; Cartwright, P.

In: IEEE Transactions on Energy Conversion, Vol. 21, No. 3, 09.2006, p. 750-758.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Direct active and reactive power control of DFIG for wind energy generation

AU - Xu, L.

AU - Cartwright, P.

PY - 2006/9

Y1 - 2006/9

N2 - This paper presents a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system. The strategy is based on the direct control of stator active and reactive power by selecting appropriate voltage vectors on the rotor side. It is found that the initial rotor flux has no impact on the changes of the stator active and reactive power. The proposed method only utilizes the estimated stator flux so as to remove the difficulties associated with rotor flux estimation. The principles of this method are described in detail in this paper. The only machine parameter required by the proposed DPC method is the stator resistance whose impact on the system performance is found to be negligible. Simulation results on a 2 MW DFIG system are provided to demonstrate the effectiveness and robustness of the proposed control strategy during variations of active and reactive power, rotor speed, machine parameters, and converter dc link voltage.

AB - This paper presents a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system. The strategy is based on the direct control of stator active and reactive power by selecting appropriate voltage vectors on the rotor side. It is found that the initial rotor flux has no impact on the changes of the stator active and reactive power. The proposed method only utilizes the estimated stator flux so as to remove the difficulties associated with rotor flux estimation. The principles of this method are described in detail in this paper. The only machine parameter required by the proposed DPC method is the stator resistance whose impact on the system performance is found to be negligible. Simulation results on a 2 MW DFIG system are provided to demonstrate the effectiveness and robustness of the proposed control strategy during variations of active and reactive power, rotor speed, machine parameters, and converter dc link voltage.

KW - induction generators

KW - power control

KW - reactive power

KW - robust control

KW - rotors

KW - stators

KW - system performance

KW - voltage control

KW - wind energy generation

KW - direct power control

KW - direct torque control

KW - Doubly fed induction generator

KW - voltage source convertor

KW - voltage vector

U2 - 10.1109/TEC.2006.875472

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JF - IEEE Transactions on Energy Conversion

SN - 0885-8969

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