A novel control for active interphase transformer using in a 24-pulse converter

Young, Cynthia; Chen, Ming‐Hui; Lai, Chien-Hsiang; Shih, Der-Chun

doi:10.1109/ipec.2010.5543617

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…in which, Vm is peak value of input phase voltage. From (11) and (12), the voltages of Vd+ and Vd-can be obtained, and then the output voltage of converter can be expressed as,…”

Section: A Analysis Voltage and Current Of Zsbtmentioning

confidence: 99%

“…To compute the kVA rating of the ZSBTs, the RMS voltage and RMS current are necessary. Since a quarter of the load current flows through each winding of the ZSBT, the kVA rating of the ZSBT can be obtained by, it should be noted that the total kVA rating of ZSBTs is quite small and also the frequency is triple of the source frequency as shown in (12). Both will contribute to a smaller size of ZSBT core, and thus reduced total cost and improved performance.…”

Section: A Analysis Voltage and Current Of Zsbtmentioning

confidence: 99%

“…Eq. (12) indicates that the fundamental frequency of ZSBT winding is the tripled frequency of power source, so the high frequency magnet material can cover the maximum frequency 2.4 kHz for ZSBT. Ferrite is employed in the experiments for ZSBT due to the cheap price and the high operation frequency.…”

Section: A Analysis Voltage and Current Of Zsbtmentioning

confidence: 99%

“…N-IPTs are usually constructed by connecting 2-IPTs, which are only applicable to 12-pulse converters. Thus, an active IPT for paralleled rectifiers in multi-pulse converters was introduced in [12]. However, its control is more complicated compared to the traditional IPTs, and thus the overall reliability is reduced.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Zero sequence blocking transformers for multi-pulse rectifier in aerospace applications

Yao

Blaabjerg

Zhang

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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Auto-Transformer Rectifier Units (ATRU) have been widely adopted in aircrafts due to its simplicity and reliability. In this paper, Zero Sequence Blocking Transformers (ZSBT) are employed in the DC link to realize parallel rectifier bridges for ATRU, being the proposed 24-pulse rectifier. A starconnected autotransformer is used in this topology to divide the primary side voltage into four three-phase voltage groups, among which there is a phase shift of 15°. The autotransformer then feeds the load through rectifier bridges, which are in parallel with ZSBTs. Compared to the traditional method that is using six interphase transformers to parallel the rectifier bridges, the proposed 24-pulse rectifier only requires four ZSBTs. This will contribute to a reduction of weight and cost of the entire system. The operation principle of the ZSBT is analyzed, and the kVA rating design of each component in the proposed unit is also explored. The kVA rating of ZSBT is only 0.034 times of the rated power. Moreover, this topology can eliminate low-order harmonics in the AC supply current. An 18 kW prototype is built up for tests. Both simulations and experiments have verified the main features of the proposed 24pulse rectifier in terms of higher efficiency, higher power factor and lower total harmonic distortions.

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“…in which, Vm is peak value of input phase voltage. From (11) and (12), the voltages of Vd+ and Vd-can be obtained, and then the output voltage of converter can be expressed as,…”

Section: A Analysis Voltage and Current Of Zsbtmentioning

confidence: 99%

Section: A Analysis Voltage and Current Of Zsbtmentioning

confidence: 99%

Section: A Analysis Voltage and Current Of Zsbtmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Zero sequence blocking transformers for multi-pulse rectifier in aerospace applications

Yao

Blaabjerg

Zhang

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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show abstract

“…The high total harmonic distortion (THD) of 18-PSAT rectifiers cannot meet the IEC standard requirements [5], [6]. Various research suggests the use of phase shifting transformers with unique designs, auxiliary circuits, and active or passive filters on one or both sides of rectifiers to solve THD problems [7], [8]. The 18-PSAT is connected to the converter through a 6-pulse bridge rectifier [9], [10].…”

Section: Introductionmentioning

confidence: 99%

Optimum Design of an 18-Pulse Phase Shifting Autotransformer Rectifier to Improve the Power Quality of Cascaded H-Bridge Motor Driver

Alahmad,

Kacar,

Uzunogl

2023

ELEKTRON ELEKTROTECH

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Due to its simplicity, efficiency, and dependability, the multipulse rectifier is widely used in electrical systems. In the presented work, an optimum design of an 18-pulse rectifier is achieved by comparing the most used configurations on the market. The 18-phase shifting autotransformer (18-PSAT) rectifier is a cheaper alternative to conventional rectifiers to reduce system harmonics. After a thorough study of the market needs and available use, this paper discusses four different structures that provide harmonic levels according to IEEE 519 limitations. An innovative 18-PSAT is shown, studied, simulated, produced, and tested with low power loss rates. The Delta differential configuration primarily emphasises lowering the loss power rating for improved power quality. With its simple structure, easy assembly, and direct connection to diodes, the proposed Delta differential configuration provides higher power quality and can cancel harmonics. To determine which 18-PSAT rectifier unit has the best weight, size, and power quality, a comparison of the selected topologies is made. A comprehensive comparison of each topology has simulation results showing current, voltage, and total harmonic distortion (THD) using MATLAB Simulink. The simulation results show that the total harmonic distortion is under 2.9 % when adopting the suggested Delta differential configuration topology. Compared to other designs, the suggested 18-pulse layout reduces overall cost and footprint by a large margin. It is also demonstrated that the DC load power is about 85 % of the recommended rectifier rating.

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A passive auxiliary circuit with interphase transformer applied in 12-pulse converters to provide clean power utility interface

Shih

Young

Whiteley

2016

Journal of the Chinese Institute of Engineers

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A novel control for active interphase transformer using in a 24-pulse converter

Cited by 6 publications

References 5 publications

Zero sequence blocking transformers for multi-pulse rectifier in aerospace applications

Zero sequence blocking transformers for multi-pulse rectifier in aerospace applications

Optimum Design of an 18-Pulse Phase Shifting Autotransformer Rectifier to Improve the Power Quality of Cascaded H-Bridge Motor Driver

A passive auxiliary circuit with interphase transformer applied in 12-pulse converters to provide clean power utility interface

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