scholarly journals Thirty-six pulse rectifier scheme based on zigzag auto-connected transformer

2016 ◽  
Vol 65 (1) ◽  
pp. 117-132 ◽  
Author(s):  
Chen Xiao-Qiang ◽  
Hao Chun-Ling ◽  
Qiu Hao ◽  
Li Min
Keyword(s):  
Induction Motor ◽  
Power Quality ◽  
Design Process ◽  
Design Procedure ◽  
Motor Drives ◽  
Quality Indices ◽  
Induction Motor Drives ◽  
Detailed Design ◽  
Load Variation ◽  
Simulation Results

AbstractIn this paper, a low kilo-volt-ampere rating zigzag connected autotransformer based 36-pulse rectifier system supplying vector controlled induction motor drives (VCIMD) is designed, modeled and simulated. Detailed design procedure and magnetic rating calculation of the proposed autotransformer and interphase reactor is studied. Moreover, the design process of the autotransformer is modified to make it suitable for retrofit applications. Simulation results confirm that the proposed 36-pulse rectifier system is able to suppress less than 35thharmonics in the utility line current. The influence of load variation and load character is also studied to demonstrate the performance and effectiveness of the proposed 36-pulse rectifiers. A set of power quality indices at AC mains and DC link are presented to compare the performance of 6-, 24- and 36-pulse AC-DC converters.

Zigzag Connected Autotransformer-Based 24-pulse AC-DC Converter

2015 ◽  
Vol 16 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Chen Xiao-qiang ◽  
Qiu Hao
Keyword(s):  
Induction Motor ◽  
Power Quality ◽  
Design Procedure ◽  
Motor Drives ◽  
Quality Indices ◽  
Induction Motor Drives ◽  
Load Variation ◽  
Simulation Results

Abstract In this paper, a zigzag connected autotransformer-based 24-pulse AC-DC converter is designed, modeled and simulated to feed direct torque controlled induction motor drives. Winding arrangements and parameters of the autotransformer and interphase reactor are given. Moreover, the design procedure of the autotransformer is modified to make it suitable for retrofit applications. Simulation results indicate that the system is capable of eliminating up to 21st harmonics in the ac mains current. The effect of load variation and load character is also studied to demonstrate the performance and effectiveness of the proposed 24-pulse converters. A set of power quality indices at ac mains and dc side are presented to compare the performance of 6-, 12- and 24-pulse converters.

A Tapped Star Connected Autotransformer Based 24-Pulse AC-DC Converter for Power Quality Improvement in Induction Motor Drives

2006 ◽  
Vol 7 (4) ◽  
Author(s):  
Vipin Garg ◽  
Bhim Singh ◽  
G Bhuvaneswari
Keyword(s):  
Induction Motor ◽  
Power Quality ◽  
Motor Drives ◽  
Quality Indices ◽  
Induction Motor Drives ◽  
Harmonic Reduction ◽  
Bridge Rectifier ◽  
Power Quality Improvement ◽  
Point Of Common Coupling ◽  
Phase Angles

This paper presents the design, analysis and development of a novel tapped star connected autotransformer based twenty-four-pulse ac-dc converter for improving power quality at the point of common coupling (PCC) in vector controlled induction motor drives (VCIMD’s). A star connected autotransformer with four windings per phase at different phase angles is used to realize the proposed twenty-four-pulse ac-dc converter. The basic design equations are derived to calculate the number of turns in different windings for achieving the harmonic reduction in the proposed autotransformer. The design of autotransformer is further modified for making it suitable for retrofit applications to replace presently used 6-pulse diode bridge rectifier. The proposed 24-pulse ac-dc converter is able to eliminate up to 21st harmonics in the supply current along with the power factor improvement close to unity in the wide operating range of the drive. The effect of load variation on VCIMD is also studied to demonstrate the effectiveness of the proposed ac-dc converter. Different power quality indices on input ac mains and on dc bus for a VCIMD fed from a 12-pulse and a 24-pulse ac-dc converters are also given to compare their performance. Various tests are conducted on the developed prototype of proposed autotransformer based 24-pulse ac-dc converter. Different power quality indices are measured on developed 24-pulse ac-dc converter to validate the design and simulation model.

scholarly journals Analysis of the Power Quality in Six-phase Induction Motor Drives with Arbitrary Winding Spatial Shifting

2017 ◽  
Vol 1 (15) ◽  
pp. 479-484
Author(s):  
J.J. Aciego ◽  
M.J. Duran ◽  
I. Gonzalez-Prieto ◽  
F. Barrero
Keyword(s):  
Induction Motor ◽  
Power Quality ◽  
Motor Drives ◽  
Induction Motor Drives

Extended Delta Based 15-Phase AC-DC Converter for Variable Frequency Induction Motor Drives

2007 ◽  
Vol 8 (5) ◽  
Author(s):  
Vipin Garg ◽  
Bhim Singh ◽  
G. Bhuvaneswari
Keyword(s):  
Induction Motor ◽  
Motor Drives ◽  
Quality Indices ◽  
Induction Motor Drives ◽  
Harmonic Reduction ◽  
Point Of Common Coupling ◽  
Common Coupling ◽  
Multi Phase ◽  
Power Factor Improvement ◽  
Wide Operating

This paper presents the design and analysis of a multi-phase ac-dc converter system for harmonic reduction at the point of common coupling (PCC) in vector controlled induction motor drives (VCIMD's). The design of the proposed 3-phase to 15-phase autotransformer is presented along with the VCIMD. The proposed 15-phase ac-dc converter is found capable of suppressing up to the 29th harmonic in the supply current, along with the power factor improvement close to unity in the wide operating range of the drive. The effect of load variation on VCIMD is also studied to demonstrate the effectiveness of the proposed ac-dc converter. A set of power quality indices on input ac mains and on dc bus for a VCIMD fed from existing 6-pulse and proposed 15-phase ac-dc converters are also given to compare their performance.

scholarly journals Design Procedure of PWM Voltages for Induction Motor Drives

1987 ◽  
Vol 20 (5) ◽  
pp. 375-380
Author(s):  
A. Bellini ◽  
A. De Carli ◽  
G. Ulivi ◽  
G. Figalli
Keyword(s):  
Induction Motor ◽  
Design Procedure ◽  
Motor Drives ◽  
Induction Motor Drives
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