Symmetrical low voltage ride-through of a 250 kW Brushless DFIG

Li, Teng; Shao, Shiyi; Abdi, Ehsan; Malliband, P.D.; Mathekga, Mmamolatelo E.; McMahon, R.A.; Tavner, Peter

doi:10.1049/cp.2012.0322

Cited by 10 publications

(17 citation statements)

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“…The machines is run at 650 rpm at nominal torque of 100 Nm. When a grid fault occurs, the CW current and the MSI current rise rapidly due to loss of magnetization [2]. The IGBTs in a converter can typically tolerate a transient peak current up to 2 p.u.…”

Section: Fig 7 Lvrt Requirement By Eon Grid Codementioning

confidence: 99%

“…but above this level, an additional hardware such as a crowbar is necessary to protect the converter. It is shown in [2] that the rotor inductance L r has an important effect on limiting the transient current.…”

Section: Fig 7 Lvrt Requirement By Eon Grid Codementioning

confidence: 99%

“…In order to assess the LVRT performance of the Brushless DFIG, a coupled-circuit model is utilized [2]. Fig.…”

Section: Fig 7 Lvrt Requirement By Eon Grid Codementioning

confidence: 99%

“…The Brushless DFIG is a promising replacement for the widely used conventional DFIG offering improved reliability, reduced capital and maintenance costs and has significantly greater LVRT capability [1,2]. It is intrinsically a mediumspeed machine, enabling the use of a simplified one or two stage gearbox, hence reducing the weight of the overall drivetrain and further improving reliability [3].…”

Section: Introductionmentioning

confidence: 99%

“…However, a larger MSI voltage range is then required for controlling reactive power. The Brushless DFIG has an intrinsically larger 'series' inductance, hence experiences a reduced transient current in the MSI compared to that of an equivalent DFIG [2]. As a result, the system complexity and cost can be reduced and the MSI can be utilized to support the supply of reactive current during the entire fault cycle, giving fast dynamics.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A study of converter rating for brushless DFIG wind turbines

Oraee¹,

Abdi²,

Abdi³

et al. 2013

2nd IET Renewable Power Generation Conference (RPG 2013)

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This paper studies the converter rating requirement of a Brushless Doubly-Fed Induction Generator for wind turbine applications by considering practical constraints such as generator torque-speed requirement, reactive power management and grid low-voltage ride-through (LVRT). Practical data has been used to obtain a realistic system model of a Brushless DFIG wind turbine using steady-state and dynamic models. A converter rating optimization is performed based on the given constraints. The converter current and voltage requirements are examined and the resulting inverter rating is compared to optimization algorithm results. In addition, the effects of rotor leakage inductance on LVRT performance and hence converter rating is investigated.

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Section: Fig 7 Lvrt Requirement By Eon Grid Codementioning

confidence: 99%

Section: Fig 7 Lvrt Requirement By Eon Grid Codementioning

confidence: 99%

“…In order to assess the LVRT performance of the Brushless DFIG, a coupled-circuit model is utilized [2]. Fig.…”

Section: Fig 7 Lvrt Requirement By Eon Grid Codementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A study of converter rating for brushless DFIG wind turbines

Oraee¹,

Abdi²,

Abdi³

et al. 2013

2nd IET Renewable Power Generation Conference (RPG 2013)

Self Cite

View full text Add to dashboard Cite

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Design and performance analysis of a 700‐kW wound‐rotor BDFIG for ship shaft generator application

Liu

Wang

2015

IEEJ Transactions Elec Engng

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In this paper, a 700‐kW brushless doubly fed induction generator (BDFIG) is designed for stand‐alone ship shaft generator application. Based on the principle of tooth harmonics and sinusoidal winding structure, a multi‐pitch unequal‐turn‐coil wound rotor is adopted to reduce harmonic contents and couple the two stator windings effectively. The performance analyses of a prototype BDFIG with two/four pole pairs are presented. The magnetic fields, air‐gap flux densities, and current densities with full load at different shaft speeds of the prototype machine are investigated. Simulation analysis and experimental tests verify that the output capability and the efficiency of the prototype machine could meet the design requirements of a 700‐kW generator and that the wound rotor structure is suitable for high‐power brushless doubly fed machines. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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