Multipulse improved-power-quality AC–DC convertors for vector-controlled induction-motor drives

2006 ◽  
Vol 153 (1) ◽  
pp. 88 ◽  
Author(s):  
B. Singh ◽  
G. Bhuvaneswari ◽  
V. Garg
2013 ◽  
Vol 6 (2) ◽  
pp. 276-286 ◽  
Author(s):  
Sandeep Madishetti ◽  
G. Bhuvaneswari ◽  
Bhim Singh

2016 ◽  
Vol 65 (1) ◽  
pp. 117-132 ◽  
Author(s):  
Chen Xiao-Qiang ◽  
Hao Chun-Ling ◽  
Qiu Hao ◽  
Li Min

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.


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

2015 ◽  
Vol 16 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Chen Xiao-qiang ◽  
Qiu Hao

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.


Author(s):  
Vipin Garg ◽  
Bhim Singh ◽  
G Bhuvaneswari

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.


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