Voltage-Dip Analysis of Brushless Doubly Fed Induction Generator Using Reduced T-Model

Sadeghi, Ramtin; Madani, Seyed M.; Lipo, T.Α.; Kashkooli, M. R. Agha; Ataei, Mohammad; Ademi, Sul

doi:10.1109/tie.2018.2880713

Cited by 14 publications

(9 citation statements)

References 21 publications

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“…The propagation of voltage dips is also not considered in most works related to FRT control strategies. In both dynamic behavior and FRT control studies, there are four methods used to generate voltage dips: ① reducing voltage at the WT terminals [19] - [29]; ② applying faults directly to the terminals [30] - [34]; ③ applying faults in the collection grid [35]- [45]; and ④ considering the propagation from the transmission grid to WT terminals [46] - [52]. There are two different limitations in those models.…”

Section: State-of-the-art In Research and Development Of Lvrt Of Wppsmentioning

confidence: 99%

Susceptibility of Large Wind Power Plants to Voltage Disturbances–Recommendations to Stakeholders

Oliveira

Bollen

2022

Journal of Modern Power Systems and Clean Energy

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Sufficient fault ride-through (FRT) of large wind power plants (WPPs) is essential for the operation security of transmission system. The majority of studies on FRT do not include all disturbances originating in the transmission system or the disturbances irrelevant to the operation security. Based on the knowledge of power quality, this paper provides a guide to stakeholders in different aspects of FRT for wind turbines (WTs) and WPPs. This paper details the characteristics of the most common disturbances originated in the transmission system, how they propagate to the WT terminals, and how they impact the dynamic behavior of a large WPP. This paper shows that the details of the voltage disturbances, not only in the transmission system, but also at the WT terminals, should be taken into consideration. Moreover, a detailed representation or characterization of voltage dips is important for FRT studies, despite that the simplified models used in the literature are insufficient. This paper strongly recommends that distinct events and additional characteristics such as the phase-angle jump and oscillations in the transition segments should be considered in FRT analysis.

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Section: State-of-the-art In Research and Development Of Lvrt Of Wppsmentioning

confidence: 99%

Susceptibility of Large Wind Power Plants to Voltage Disturbances–Recommendations to Stakeholders

Oliveira

Bollen

2022

Journal of Modern Power Systems and Clean Energy

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“…The BDFI(R)G (recent progress in [31]) thoroughly investigated since previous years (in cascaded connections) [32] due to its brushless attribute, has two windings on stator (a main one with pp pole pairs and a control one with pc pole pairs). The rotor is provided with a nested cage pr=pp+pc poles [5], as shown in Fig.…”

Section: The Bdfi(r)gmentioning

confidence: 99%

“…The brushless attribute is reflected apparently by the fact that the coupling of the two windings (in BDFRG) through the rotor is produced by the first harmonic of air-gappermeance leading to a maximum fundamental winding factor of around 0.5, which means, inevitably, low torque density. Also, the machine shows on both winding an additional (leakage) average air-gap-permeance -producing inductance which deteriorates notably the power factor in one or the other winding, but this is useful to limit current transients [31] in BDFRG (not so, apparently, for BDFIG [31]) during voltage sags. Also, for the nested cage rotor, the rotor losses are still larger.…”

Section: The Bdfi(r)gmentioning

confidence: 99%

Fractional kVA Rating PWM Converter Doubly Fed Variable Speed Electric Generator Systems: An Overview in 2020

Boldea

Tutelea

et al. 2021

IEEE Access

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Variable speed generator systems (VSGs) are at work in the now 600 GW installed wind power plants (parks). Also, they are used as vehicular and on ground stand-alone generators. VSGs imply full kVA rating PWM converters in permanent magnet (PM) or in electrically excited synchronous or in cage rotor inductance generators. But, to reduce cost in absence of PMs at a reasonable initial cost (weight) and efficiency, the fractional kVA PWM converter doubly fed induction generators (DFIG) cover now about 50% of all installed power in wind generators. The present paper reviews recent progress in DFIG and various forms of brushless DFGs (doubly fed generators) characterized in terms of topology, design, performance and advanced control for healthy and faulty load conditions in the hope of inspiring new, hopefully ground breakings, progress for wind and hydro energy conversion and in vehicular and on the ground stand-alone generator applications.INDEX TERMS Variable speed generator system, double fed induction generator, brushless double fed induction (reluctance) generator, dual stator winding cage rotor induction generator, dual rotor bidirectional flux-modulation permanent magnet machine.

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“…Shao performed a dynamic analysis to investigate low-voltage ride-through (LVRT) events with symmetric drops set to 50% and zero [15]. A new reduced dynamic T-model was proposed in [16], and a detailed mathematical analysis was derived for the physical quantities of the PW and CW (flux, current, and voltage) subjected to voltage-dip conditions. However, the authors did not propose a feasible strategy for this condition.…”

Section: Introductionmentioning

confidence: 99%

Optimal Control of Brushless Doubly Fed Wind Power Generator under Zero-Voltage Ride-Through

Xu,

Nie

2024

Energies

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In the grid-connected operation dynamics of brushless doubly fed generators (BDFGs), a dip in the grid voltage is equivalent to suddenly adding a reverse voltage source at the parallel node. By deriving the expressions of the transient current of power winding (PW), control winding (CW), and rotor winding (RW) of a BDFG in the complex frequency domain under a natural state, it was concluded that the overshoot and oscillation time are affected by the CW voltage, the drop degree and phase of the grid voltage, and the rotor speed. Therefore, an optimal control strategy is proposed. A state model with the CW current as the state variable was constructed using the Pontryagin minimum principle. The finite-time integral value of the square of the electromagnetic torque was set as the objective function to achieve the minimum value that could suppress the overshoot and oscillation of the electromagnetic torque, and the optimal CW voltage command value was directly solved to accelerate the convergence of the BDFG’s physical quantities, thereby reducing the amplitude. Finally, the feasibility of the optimal control algorithm was verified using tests on an experimental platform.

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Voltage-Dip Analysis of Brushless Doubly Fed Induction Generator Using Reduced T-Model

Cited by 14 publications

References 21 publications

Susceptibility of Large Wind Power Plants to Voltage Disturbances–Recommendations to Stakeholders

Susceptibility of Large Wind Power Plants to Voltage Disturbances–Recommendations to Stakeholders

Fractional kVA Rating PWM Converter Doubly Fed Variable Speed Electric Generator Systems: An Overview in 2020

Optimal Control of Brushless Doubly Fed Wind Power Generator under Zero-Voltage Ride-Through

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