Integrated Damper Cage for THD Improvements of Variable Speed Salient-Pole Synchronous Generators for the More Electric Aircraft

Yin-li, Wang; Nuzzo, Stefano; Gerada, Chris; Zhang, He; Zhao, Weiduo; Galea, Michael

doi:10.1109/tte.2021.3139366

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…For aerospace applications, the WRSM is a consolidated and well-proven option for the generator in more electric aircraft [16]. As reported in [15], by using the integrated damper cage, the output voltage total harmonic distortion performance of the WRSM can be improved to 1% level, which shows a high output power quality.…”

Section: Introductionmentioning

confidence: 92%

“…Due to the flexible flux regulation capability and no rare-earth PM material structure, WRSM have been applied in electrical vehicles (EVs) [5][6][7][8][9][10], power generation [11][12][13][14] and aerospace [15,16]. In order to fully utilize the additional control freedom of the DC winding, deadbeat direct torque and flux control was proposed in [8], which can achieve the unity power factor operation and reduce both copper loss and iron loss.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of DC Winding Induced Voltage in Wound-Rotor Synchronous Machines by Using the Air-Gap Field Modulation Principle

Zhang

Fan

Zhu

et al. 2022

WEVJ

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In order to analyze the DC winding induced voltage in the wound-rotor synchronous machine, this paper uses the air-gap field modulation principle to investigate its operation mechanism and harmonic order. By establishing the analytical magneto-motive force (MMF)-permeance model, the DC winding induced voltage per electrical cycle under open-circuit condition, armature reaction condition and on-load condition are deduced. Analytical analysis shows that the MMF function, stator and rotor permeance function are critical factors that influence the harmonic order of the DC winding induced voltage. The analysis results are compared with those predicted by the finite element analysis (FEA). Both non-linear steel and linear steel conditions are accounted in the FEA analysis, and the results show that the analytical deduction result agrees well with the FEA analysis result.

show abstract

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Analysis of DC Winding Induced Voltage in Wound-Rotor Synchronous Machines by Using the Air-Gap Field Modulation Principle

Zhang

Fan

Zhu

et al. 2022

WEVJ

View full text Add to dashboard Cite

show abstract

Refined Structural Design and Thermal Analyses of a High-Speed Wound-Field Generator for the More Electrical Aircraft

Guiducci¹,

Barbieri²,

Nuzzo³

et al. 2023

2023 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)

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Minimization of Voltage Harmonic Distortion of Synchronous Generators under Non-Linear Loading via Modulated Field Current

2023

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The synchronous generators (SGs) supplying non-linear loads have harmonically distorted terminal voltages. Hence, these distorted terminal voltages adversely affect the performance parameters of the supplied loads such as the power factor, current distortion, losses, and efficiency. To mitigate the harmonic voltages and currents, passive and active filters are generally employed. However, passive filters cause resonance problems, while active filters can cause high costs. On the other hand, in several recent studies to reduce the SG’s terminal voltage harmonic distortion, which depends on the constructional design under the no-loading condition, the conventional DC excitation current has been modulated with AC harmonic components. These field current modulation methods have high computational complexity, and require extra hardware for their implementation. In the present paper, firstly, for the reduction of the terminal voltage harmonic distortion of the SG under non-linear loading conditions, the validity of the field current modulation technique is investigated. The numerical results show that by using the field current modulation method, under rated loading conditions, the total harmonic distortion of the terminal voltage can be reduced from 18% to 11%. Secondly, to provide a computational efficient and low-cost tool for optimal field current modulation, which minimizes the terminal voltage harmonic distortion, an Artificial Neural Network (ANN)-based model is proposed. Finally, with the integration of ANSYS Maxwell, ANSYS Simplorer, and MATLAB/Simulink software, the implementation of the developed model is demonstrated for the construction of the optimally modulated field current.

show abstract

Integrated Damper Cage for THD Improvements of Variable Speed Salient-Pole Synchronous Generators for the More Electric Aircraft

Cited by 3 publications

References 25 publications

Analysis of DC Winding Induced Voltage in Wound-Rotor Synchronous Machines by Using the Air-Gap Field Modulation Principle

Analysis of DC Winding Induced Voltage in Wound-Rotor Synchronous Machines by Using the Air-Gap Field Modulation Principle

Refined Structural Design and Thermal Analyses of a High-Speed Wound-Field Generator for the More Electrical Aircraft

Minimization of Voltage Harmonic Distortion of Synchronous Generators under Non-Linear Loading via Modulated Field Current

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