Comparison of prospective topologies for aircraft autotratisformer-rectifier units

Uan-Zo-li, A.; Burgos, Rolando; Wang, F.; Boroyevich, Dushan; Lacaux, F.; Tardy, Alain

doi:10.1109/iecon.2003.1280206

Cited by 36 publications

(13 citation statements)

References 21 publications

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“…A distinguishing feature is that constant-frequency generators are to be replaced by variable-frequency generators to eliminate complexities associated with the integrated mechanical frequency controller of generators [1]. With the generated voltages and frequencies subject to significant tolerance, power electronics is to maintain the load voltages as required [2].…”

Section: Introductionmentioning

confidence: 99%

Stochastic Polynomial-Chaos-Based Average Modeling of Power Electronic Systems

Strunz

2011

IEEE Trans. Power Electron.

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With the introduction of variable-frequency generators in next-generation more-electric aircraft, both voltage and frequency are to reveal significant tolerance levels. In this study, a method based on the combination of polynomial chaos and nodal analysis is developed to identify and quantify the impact of such tolerance in ac/dc diode rectifiers and dc/dc switch-mode converters. The resulting stochastic average models track the transients of the tolerance limits and related information in the time domain both accurately and efficiently. The relative merits of the method are substantiated through a comparative analysis with the Monte Carlo and root-sum-square methods.

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Section: Introductionmentioning

confidence: 99%

Stochastic Polynomial-Chaos-Based Average Modeling of Power Electronic Systems

Strunz

2011

IEEE Trans. Power Electron.

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“…A multi-pulse rectifier is a rectifier composed of diode rectifiers connected in parallel through a phase-shifting transformer to provide inherent high power factor and low THD. So far, Energies 2018, 11, 379 3 of 17 multi-pulse rectifier technology is highly used in aircraft power system, the fundamental frequency of which is 360-800 Hz and very good for reducing the volume and weight of transformer [15][16][17]. However, in WECS application, considering the quite low rotor speed, i.e., low fundamental frequency, the volume and weight of the transformer might be increased dramatically if the conventional multi-pulse technology had still been adopted.…”

Section: Introductionmentioning

confidence: 99%

On Reducing the Shaft Torque Ripple of Small-to-Medium-Scale Wind Energy Conversion Systems Using Multi-Pulse Autotransformer Rectifier

Chen

2018

Energies

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Abstract:In a small-to-medium-scale wind energy conversion system (WECS), diode rectifiers rather than pulse-width modulated (PWM) rectifiers are widely adopted due to the features of high reliability and low cost. However, large current harmonics are induced in the generator phase current by commutations of diode rectifier, eventually causing large torque ripple on the drive-train of the WECS and making it more likely to be fatigue breakdown. In this paper, a 12-pulse autotransformer rectifier unit (ATRU) with reduced volume and weight is proposed for WECS application. By analyzing the characteristics of the input current and output voltage of the ATRU within the entire operation range of WECS, the method to properly design its parameters is proposed. A 1.2 kW direct-drive WECS demonstration platform using ATRU is built in the lab. A modified sensorless overall power control strategy is adopted to control the WECS. Experimental tests are carried out and the results not only validate the feasibility of implementing ATRU in WECS applications, but also prove its high torque ripple reduction ability.

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“…Among possible 18-pulse Autotransformer-Rectifier-Unit (ATRU) topologies, Direct Symmetric circuit (DS-ATRU) demonstrates relatively low complexity, is insensitive to impedance mismatch and distortions of the input voltage and has low common mode voltage [17]. Due to these reasons, 18-pulse DS-ATRU is a logical choice for passive rectification for the aircraft application.…”

Section: Introductionmentioning

confidence: 99%

Analysis of New Step-up and Step-down Direct Symmetric 18-pulse Topologies for Aircraft Autotransformer-Rectifier Units

Uan-Zo-li

Burgos

Lacauz

et al. 2005

2005 IEEE 36th Power Electronics Specialists Conference

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Among possible 18-pulse Autotransformer-Rectifier-Unit (ATRU) topologies, Direct Symmetric circuit (DS-ATRU) demonstrates relatively low complexity, it is insensitive to impedance mismatch and distortions of input voltage and has low common mode voltage. This paper proposes new step-up and stepdown Direct Symmetric 18-pulse ATRU topologies for aircraft application. Serious study of proposed topologies was performed. The authors analyzed the kVA ratings, effects of leakage inductance on compliance with input current harmonic requirements, power sharing between diode bridges, common mode voltage and output ripple. The comparison is carried out for the full range of the input line frequency from 400 to 800Hz. Key analyses and results obtained with Saber simulations are presented for validation of the presented work. Some experimental results are shown. I. 1142 0-7803-9033

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Comparison of prospective topologies for aircraft autotratisformer-rectifier units

Cited by 36 publications

References 21 publications

Stochastic Polynomial-Chaos-Based Average Modeling of Power Electronic Systems

Stochastic Polynomial-Chaos-Based Average Modeling of Power Electronic Systems

On Reducing the Shaft Torque Ripple of Small-to-Medium-Scale Wind Energy Conversion Systems Using Multi-Pulse Autotransformer Rectifier

Analysis of New Step-up and Step-down Direct Symmetric 18-pulse Topologies for Aircraft Autotransformer-Rectifier Units

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