Air-Gap Power-Based Sensorless Control in a DFIG Connected to a DC Link

G. D. Marques; D. M. Sousa; M. F. Iacchetti

doi:10.1109/TEC.2014.2358698

Air-Gap Power-Based Sensorless Control in a DFIG Connected to a DC Link

G. D. Marques, D. M. Sousa, M. F. Iacchetti

Research output: Contribution to journal › Article › peer-review

Abstract

This paper deals with the sensorless vector control of a doubly fed induction generator (DFIG) whose stator is connected by a rectifier to a dc link, which also feeds the rotor-side inverter. A noticeable reduction of the costs can be achieved by this topology, because only a single inverter and a diode rectifier are needed instead of the traditional back-to-back converter. A sensorless stator-flux-oriented control is implemented by using an observer, which directly computes the necessary slip angle based on of the air-gap power and without the need of the stator flux estimation. The direct-axis component of the rotor current is adjusted to regulate the stator frequency near the rated value. In order to track the actual stator frequency, the phase-locked-loop approach is used. The control method is validated by simulations and experimental results obtained using a small-rating laboratory setup.

Original language	English
Journal	I E E E Transactions on Energy Conversion
DOIs	https://doi.org/10.1109/TEC.2014.2358698
Publication status	Published - 8 Oct 2014

Keywords

Doubly fed induction generator (DFIG)
frequency regulation
phase-locked loop (PLL)
sensorless control

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TEC.2014.2358698

Cite this

@article{34270fb688cc43d488399fd56496934c,

title = "Air-Gap Power-Based Sensorless Control in a DFIG Connected to a DC Link",

abstract = "This paper deals with the sensorless vector control of a doubly fed induction generator (DFIG) whose stator is connected by a rectifier to a dc link, which also feeds the rotor-side inverter. A noticeable reduction of the costs can be achieved by this topology, because only a single inverter and a diode rectifier are needed instead of the traditional back-to-back converter. A sensorless stator-flux-oriented control is implemented by using an observer, which directly computes the necessary slip angle based on of the air-gap power and without the need of the stator flux estimation. The direct-axis component of the rotor current is adjusted to regulate the stator frequency near the rated value. In order to track the actual stator frequency, the phase-locked-loop approach is used. The control method is validated by simulations and experimental results obtained using a small-rating laboratory setup.",

keywords = "Doubly fed induction generator (DFIG), frequency regulation, phase-locked loop (PLL), sensorless control",

author = "Marques, {G. D.} and Sousa, {D. M.} and Iacchetti, {M. F.}",

note = "This workwas supported by national funds through Fundacao para a Ciencia e a Tecnologia (FCT) under Project Pest-OE/EEI/LA0021/2013. Paper no. TEC-00222-2014.",

year = "2014",

month = oct,

day = "8",

doi = "10.1109/TEC.2014.2358698",

language = "English",

journal = "I E E E Transactions on Energy Conversion",

issn = "0885-8969",

publisher = "IEEE",

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T1 - Air-Gap Power-Based Sensorless Control in a DFIG Connected to a DC Link

AU - Marques, G. D.

AU - Sousa, D. M.

AU - Iacchetti, M. F.

N1 - This workwas supported by national funds through Fundacao para a Ciencia e a Tecnologia (FCT) under Project Pest-OE/EEI/LA0021/2013. Paper no. TEC-00222-2014.

PY - 2014/10/8

Y1 - 2014/10/8

N2 - This paper deals with the sensorless vector control of a doubly fed induction generator (DFIG) whose stator is connected by a rectifier to a dc link, which also feeds the rotor-side inverter. A noticeable reduction of the costs can be achieved by this topology, because only a single inverter and a diode rectifier are needed instead of the traditional back-to-back converter. A sensorless stator-flux-oriented control is implemented by using an observer, which directly computes the necessary slip angle based on of the air-gap power and without the need of the stator flux estimation. The direct-axis component of the rotor current is adjusted to regulate the stator frequency near the rated value. In order to track the actual stator frequency, the phase-locked-loop approach is used. The control method is validated by simulations and experimental results obtained using a small-rating laboratory setup.

AB - This paper deals with the sensorless vector control of a doubly fed induction generator (DFIG) whose stator is connected by a rectifier to a dc link, which also feeds the rotor-side inverter. A noticeable reduction of the costs can be achieved by this topology, because only a single inverter and a diode rectifier are needed instead of the traditional back-to-back converter. A sensorless stator-flux-oriented control is implemented by using an observer, which directly computes the necessary slip angle based on of the air-gap power and without the need of the stator flux estimation. The direct-axis component of the rotor current is adjusted to regulate the stator frequency near the rated value. In order to track the actual stator frequency, the phase-locked-loop approach is used. The control method is validated by simulations and experimental results obtained using a small-rating laboratory setup.

KW - Doubly fed induction generator (DFIG)

KW - frequency regulation

KW - phase-locked loop (PLL)

KW - sensorless control

U2 - 10.1109/TEC.2014.2358698

DO - 10.1109/TEC.2014.2358698

M3 - Article

SN - 0885-8969

JO - I E E E Transactions on Energy Conversion

JF - I E E E Transactions on Energy Conversion

ER -

Air-Gap Power-Based Sensorless Control in a DFIG Connected to a DC Link

Abstract

Keywords

UN SDGs

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