Evaluation on the Autoconfigured Multipulse AC/DC Rectifiers and Their Application in More Electric Aircrafts

Chen, Jie; Shen, Yuting; Chen, Jiawei; Bai, Han; Gong, Chunying; Wang, Fred

doi:10.1109/tte.2020.2983858

Cited by 39 publications

(13 citation statements)

References 111 publications

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“…Parallel connection, using ( 27) In Table II of Fig. 10(a), the limits of integration are presented for the parallel connection used in the classic model, representing the change of diode conduction (10). Also, in Table III of Fig.…”

Section: B 12-pulses Trus Series and Parallel Connectionmentioning

confidence: 99%

“…MPR has six-pulse diode rectifiers connected in series or parallel depending on the application. A series connection is usually used in High Voltage Direct Current (HVDC) power systems [9] and a parallel connection in electrical aircraft systems [10]. In the last century, the performance of different topologies has been presented and compared with each other [11], [12].…”

Section: Introductionmentioning

confidence: 99%

“…The advantage of ( 16) is that it is not required to identify the limits calculated using (10), saving the computation time. The projection is the actual instantaneous value of vSP(ωt), then the shadow projection methodology is represented by (17), with that the numerical process is determined the DC voltage signature in a period.…”

mentioning

confidence: 99%

“…9, calculated as the sum of the two voltages projected by the Star rectifier and the Triangle rectifier. It is also observed that the changes of inflection points being the sum are the moments of change of normal conduction of direct and inverse diodes in both rectifiers.In TableIIof Fig.10(a), the limits of integration are presented for the parallel connection used in the classic model, representing the change of diode conduction(10). Also, in TableIIIof Fig.10(b), the limits of integration are presented for the series connection.…”

mentioning

confidence: 99%

“…In TableIIand TableIII, only one period is represented, but other periods can be represented by adding n*ɷT, where n is the number of the period, ɷ is the pulsation, and T is the period. The values of the Table III are calculated using equation(10) to localize the intervals, taking into account that in a series connection, the commutation instant in the 12 pulses case is composed adding the 6-pulse commutations of star and delta. As shown in the right part of Fig.10, the notch in the 12 pulses case is lower than in the six pulses case because the voltage difference is reduced due to the increase in the number of pulses.…”

mentioning

confidence: 99%

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New Methodology to Calculate DC Voltage Signature in N-Phases TRUs Under Supply Voltage Sags

Saura¹,

Bakkar²,

Bogarra³

2022

IEEE Access

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A new methodology based on the shadow projection has been developed to study any multipulse rectifier's dynamic behavior under balanced and unbalanced conditions. The proposed methodology calculates the DC average voltage and instantaneous values under balanced and unbalanced supply voltage conditions for multiphase Transformer Rectifier Units (TRUs). The calculation of the developed algorithms is more practical than the classical methods and other approaches based on Fourier series or symmetrical components that are difficult to apply under unbalanced conditions. Furthermore, classical methods are not simple to determine the limits of the integrals and calculate them to obtain the average value, so a more friendly and practical methodology has been developed to analyze rectifiers operating under supply voltage sags. This new methodology has been validated by simulation for a 12-pulse TRU in series and parallel connections, and it has also been validated for a 36-pulse TRU in parallel connection using interphase inductors. The accuracy of the calculations is validated by the experimental results for 12-pulse TRUs, series, and parallel connection, and 18-pulse TRU in series connection.INDEX TERMS Multipulse rectifier, shadow projection, transformer rectifier unit, unbalanced voltage condition, sags.

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Section: B 12-pulses Trus Series and Parallel Connectionmentioning

confidence: 99%