Design of the Brushless DFIG for Optimal Inverter Rating

Abdi, Ehsan; Oraee, Ashknaz; Abdi, Salman; McMahon, R.A.

doi:10.1049/cp.2014.0502

Cited by 10 publications

(8 citation statements)

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“…For example, the effects of nested-loop and series-wound rotor windings on the rotor leakage inductance are discussed in [11]. An alternative way is to manage the stator slot leakage by suitable design of stator slot magnetic wedges [12,13]. Clearly, the change in the design parameters would also affect other performance measures of the machine, hence an overall optimisation must be carried out.…”

Section: Effect Of Leakage Inductance On Inverter Ratingmentioning

confidence: 99%

Converter rating optimisation for a brushless doubly fed induction generator

Oraee

Abdi

McMahon

2015

IET Renewable Power Generation

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This article studies the converter rating requirement of a Brushless doubly-fed induction generator (DFIG) for wind turbine applications. Practical constraints such as the generator torque-speed requirement, reactive power management and grid low-voltage ride-through (LVRT) are considered. Experimental data have been used to obtain a realistic system model of a Brushless DFIG in a wind turbine. The study shows that there is a minimum converter rating, dependant on operating point, but this may not be achievable without machine derating. The use of a capacitor bank enables the converter ratings to be reduced without compromising the machine's performance. The effect of the machine's leakage inductance on the interplay of LVRT, achievable system power factor, converter rating and losses is investigated.

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Section: Effect Of Leakage Inductance On Inverter Ratingmentioning

confidence: 99%

Converter rating optimisation for a brushless doubly fed induction generator

Oraee

Abdi

McMahon

2015

IET Renewable Power Generation

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“…Pole pair combinations which do not produce UMPs were tested using 2D FE BDFM models in [36] to highlight suitable combinations. Although the p 1 /p 2 = 2/4 pole pair combination is used for a 250 kW BDFM prototype in [37], the results in [36] suggest that the p 1 /p 2 = 4/6 combination is more suitable in terms of power, efficiency and torque ripple. However, optimization results in [38] indicate that the p 1 /p 2 = 2/4 combination performs better than the p 1 /p 2 = 4/6 combination for a BDFM in a D180 frame size.…”

Section: Commonly Used Pole Pair Combinationsmentioning

confidence: 99%

A Review of the Advancements in the Design of Brushless Doubly Fed Machines

Olubamiwa

Gule

2022

Energies

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Research interest on brushless doubly fed induction machines (BDFMs) is increasing, as they offer higher reliability compared to doubly fed induction generators (DFIGs) in wind turbines. At the moment, BDFMs do not have a definitive structure nor design process, as literature is rife with different approaches to designing BDFMs. In this paper, a comprehensive review of the design of BDFMs from available literature is conducted. The evolution of cascade induction machine systems to contemporary BDFMs is first illustrated. Pioneering research work in the evolution which have influences on modern BDFM designs are highlighted. Relevant research on different aspects of present day BDFM design are then discussed. BDFM design and optimization methodologies applied in available literature are also explored.

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“…An additional inductance can be connected to rotor circuits to increase L kr in (25) in order to limit the peak current in diodes and to simultaneously mitigate current ripple and voltage fronts due to the VSI during the normal operation. Machine design tricks such as magnetic wedges and/or semi‐closed slots [27] could also be used to provide inherent high leakage inductance. As an alternative, series inductances or resistances can be introduced in the stator and by‐passed during the normal operation of system, as proposed in [12] for ac‐grid connected DFIGs.…”

Section: Voltage Dip Severity Chartmentioning

confidence: 99%