A 20-Pulse Asymmetric Multiphase Staggering Autoconfigured Transformer For Power Quality Improvement

P, Saravana Prakash; Kalpana, R; Singh, Bhim; Bhuvaneswari, G.

doi:10.1109/tpel.2017.2721958

Cited by 63 publications

(3 citation statements)

References 24 publications

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“…In this figure, it can also be observed that the 24PRs proposed in references [12] and [13] have a higher rating than the suggested one. Moreover, the proposed rectifier based on PDC1 rating is 10.81%, 5.08%, 11.35%, 16.55%, 1.20%, 35.06%, 28.34%, 19.35%, 15.41% and 14.69% less than that of other MPRs in [5, 9–11, 14–18, 20].…”

Section: Apparent Power Ratingsmentioning

confidence: 99%

“…The proposed 24PR configurations are compared with 20PR [9][10][11]29], 24PR [22], 40PR [15,16], and 72PR [17,18] in Table 4 in terms of %THD, efficiency, the number of diodes, magnetic rating, and cost. According to the procedure mentioned in [17,18,29], the cost can be estimated at 4.5 times of kVA rating of a transformer.…”

Section: Apparent Power Ratingsmentioning

confidence: 99%

“…For instance, without using any output filters, the %THD of the input current of the 12-pulse rectifier (12PR) will be about 15%, which cannot meet the IEEE [6] and IEC [7] standards, and also DO-160G [8], which is used for testing airborne equipment for the entire spectrum of aircraft. To overcome this problem, researchers have proposed various auxiliary circuits for the dc or ac sides of MPRs [9][10][11]. In [12,13], various 24PRs have been suggested based on 12PRs with active harmonic mitigation at the dc link.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An improved 24‐pulse rectifier for harmonic mitigation in more electric aircraft

Abdollahi

Gharehpetian

Anvari-Moghaddam

et al. 2021

IET Power Electronics

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To increase the power rating and reduce the cost and complexity of a multi-pulse rectifier (MPR), it is well known that the pulse number must be increased. In some practical cases, a 12-pulse rectifier (12PR) is suggested as a good solution considering its relatively simple structure and low weight. However, 12-pulse rectifiers cannot technically meet the standards of harmonic distortion requirements for some industrial applications, and therefore they must be used along with output filters. Two cost-effective 24-pulse rectifiers (24PRs) are suggested in the article, which consist of a polygon autotransformer 12PR and two pulse doubling circuits (PDCs) at dc link. The first PDC (PDC1) is based on an interphase transformer (IPT) with a step-up secondary winding, and the second one (PDC2) is based on an IPT with a step-down secondary winding. To show the advantages of the proposed combinations compared with other solutions, simulation results are used, and also a prototype is implemented to evaluate and verify the simulation results. The simulation and experimental test results show that the total harmonic distortion (%THD) of the input current for the 12PR with PDC1 is less than 3.67%, and the 12PR with PDC2 is less than 1.45%, which meets the IEEE 519 and DO-160G requirements. Also, it is shown that in comparison with other solutions, the proposed two configurations are cost-effective, power factor is near unity, rating is almost 29% of the load rating, and the efficiency is almost 97.5%, which makes them a practical solution for more electric aircraft.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Apparent Power Ratingsmentioning

confidence: 99%

Section: Apparent Power Ratingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An improved 24‐pulse rectifier for harmonic mitigation in more electric aircraft

Abdollahi

Gharehpetian

Anvari-Moghaddam

et al. 2021

IET Power Electronics

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Cost‐effective multi‐pulse AC‐DC converter with lower than 3% current THD

Abdollahi

Gharehpetian

Mahdavi

2019

Circuit Theory & Apps

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In this paper, a new multi-pulse clean power converter topology is presented with lower than 3% input current total harmonic distortion (THD). The topology is based on the combination of a 36-pulse converter and a pulse doubling circuit. The 36-pulse converter consists of a "polygon" autotransformer and two 18-pulse diode bridge rectifiers. Pulse doubling circuit consists of zerosequence-blocking transformer (ZSBT) and tapped interphase transformer (IPT). The important advantage of the proposed AC-DC converter is considerable reduction in burdens of the magnetic parts with respect to the nominal load rating. It provides more economical solution to achieve harmonic mitigation in electric power systems as compared with other 72-pulse AC-DC converters. The simulation and experimental results show that the input current THD is less than 3% using the proposed topology. The results indicate a significant reduction in the total cost and volume of the proposed 72-pulse configuration in comparison with similar configurations. Also, it is shown that the proposed converter rating is about 44% of the DC load power.

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A novel 12‐pulse full‐wave rectifier with simple circuit configuration

Wang

Yao

Guan

et al. 2020

Circuit Theory & Apps

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In this paper, a novel full-wave 12-pulse rectifier with simple circuit configuration is proposed. The proposed full-wave 12-pulse rectifier consists of a conventional six-pulse full-wave rectifier and an auxiliary single-phase full-bridge rectifier (ASFR). The ASFR extracts a rectangular current from the DC side of the rectifier to increase the output states of two three-phase half-wave rectifiers, then the conventional six-pulse full-wave rectifier is upgraded to a 12-pulse full-wave rectifier in accordance with the current relationship between AC and DC sides and the relationship between DC-side voltages. Since only a low-capacity ASFR (6.3% P d) is needed, the proposed 12-pulse rectifier has the least number of components count, making it robust and simple to implement. The average output current of ASFR is only 6.7% of the load current, which makes it more suitable for low-voltage and high-current applications. A prototype with a power of 1 kW is built to verify the correctness of the theoretical analysis.

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A 20-Pulse Asymmetric Multiphase Staggering Autoconfigured Transformer For Power Quality Improvement

Cited by 63 publications

References 24 publications

An improved 24‐pulse rectifier for harmonic mitigation in more electric aircraft

An improved 24‐pulse rectifier for harmonic mitigation in more electric aircraft

Cost‐effective multi‐pulse AC‐DC converter with lower than 3% current THD

A novel 12‐pulse full‐wave rectifier with simple circuit configuration

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