Computation and measurements of the DC link current in six-phase voltage source PWM inverters for AC motor drives

2003 ◽  
Author(s):  
R. Bojoi ◽  
M.C. Caponet ◽  
G. Grieco ◽  
M. Lazzari ◽  
A. Tenconi ◽  
...  
Keyword(s):  
Motor Drives ◽  
Voltage Source ◽  
Phase Voltage ◽  
Ac Motor ◽  
Ac Motor Drives

scholarly journals Unidirectional voltage converter for battery electric vehicle ultrafast charger

2020 ◽  
Author(s):  
Jerzy Ryszard Szymanski ◽  
Marta Zurek-Mortka ◽  
Dulal Acharjee
Keyword(s):  
Electric Vehicles ◽  
Frequency Converter ◽  
Motor Drives ◽  
Phase Voltage ◽  
Dc Microgrid ◽  
Pwm Inverter ◽  
Ac Motor ◽  
Three Phase ◽  
Fast Charging ◽  
Ac Motor Drives

Abstract This paper proposes the use of a frequency converter used in the AC motor drives to build a fast charging battery converter for electric vehicles (EV). The possibility of using semiconductor integrated modules with two-level inverters and diode rectifiers for the construction of high power voltage DC/DC converters has been demonstrated. The DC voltage of the EV battery during charging is obtained by rectifying the three-phase voltage of the PWM inverter. A 600 V DC microgrid was used to power the inverter. Simulation tests of the DC/DC converter model were carried out. The results of simulation tests were verified experimentally on a laboratory stand.

scholarly journals Implementation of an FPGA-Based Current Control and SVPWM ASIC with Asymmetric Five-Segment Switching Scheme for AC Motor Drives

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1462
Author(s):  
Ming-Fa Tsai ◽  
Chung-Shi Tseng ◽  
Po-Jen Cheng
Keyword(s):  
Discrete Time ◽  
Control Function ◽  
Current Control ◽  
Motor Drives ◽  
Modulation Scheme ◽  
Time Interval ◽  
Switching Scheme ◽  
Two Phase ◽  
Ac Motor ◽  
Ac Motor Drives

This paper presents the design and implementation of an application-specific integrated circuit (ASIC) for a discrete-time current control and space-vector pulse-width modulation (SVPWM) with asymmetric five-segment switching scheme for AC motor drives. As compared to a conventional three-phase symmetric seven-segment switching SVPWM scheme, the proposed method involves five-segment two-phase switching in each switching period, so the inverter switching times and power loss can be reduced by 33%. In addition, the produced PWM signal is asymmetric with respect to the center-symmetric triangular carrier wave, and the voltage command signal from the discrete-time current control output can be given in each half period of the PWM switching time interval, hence increasing the system bandwidth and allowing the motor drive system with better dynamic response. For the verification of the proposed SVPWM modulation scheme, the current control function in the stationary reference frame is also included in the design of the ASIC. The design is firstly verified by using PSIM simulation tool. Then, a DE0-nano field programmable gate array (FPGA) control board is employed to drive a 300W permanent-magnet synchronous motor (PMSM) for the experimental verification of the ASIC.

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