scholarly journals A 7-Level Single DC Source Cascaded H-Bridge Multilevel Inverter with a Modified DTC Scheme for Induction Motor-Based Electric Vehicle Propulsion

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Farid Khoucha ◽  
Khoudir Marouani ◽  
Mohamed Benbouzid ◽  
Abdelaziz Kheloui ◽  
Abdeslam Mamoune
Keyword(s):  
Induction Motor ◽  
Electric Vehicle ◽  
Output Voltage ◽  
Motor Drives ◽  
Multilevel Inverter ◽  
Induction Motor Drives ◽  
Voltage Level ◽  
Vehicle Propulsion ◽  
Control Scheme ◽  
And Control

This paper presents a new hybrid cascaded H-bridge multilevel inverter motor drive DTC scheme for electric vehicles where each phase of the inverter can be implemented using a single DC source. Traditionally, each phase of the inverter requires DC source for output voltage levels. In this paper, a scheme is proposed that allows the use of a single DC source as the first DC source which would be available from batteries or fuel cells, with the remaining () DC sources being capacitors. This scheme can simultaneously maintain the capacitors of DC voltage level and produce a nearly sinusoidal output voltage due to its high number of output levels. In this context, high performances and efficient torque and flux control are obtained, enabling a DTC solution for hybrid multilevel inverter powered induction motor drives intended for electric vehicle propulsion. Simulations and experiments show that the proposed multilevel inverter and control scheme are effective and very attractive for embedded systems such as automotive applications.

Electric Vehicle by using Modified Topology of Multilevel Inverter

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
A. Rathinam ◽  
T. Karthikeyan ◽  
K. Ramani
Keyword(s):  
Induction Motor ◽  
Electric Vehicle ◽  
Pulse Width Modulation ◽  
Multilevel Inverter ◽  
Prototype Model ◽  
Switching Scheme ◽  
Voltage Level ◽  
Variable Frequency Drive ◽  
New Family ◽  
Three Phase

This paper focused with extends the knowledge in studies and analysis of a new family of diode clamp multilevel inverter for electric vehicle application. The modified new diode clamp multilevel inverter concepts is related to reducing the components utilization, which has (n-1) switching devices, (n-3) clamping diodes, (n-1)/2 DC-link sources for achieving the same voltage level of traditional topologies. The proposed system is enhanced the voltage rating and reduce the total harmonics distortion in inverter output voltage. The switching scheme of Alternatively on Opposition Disposition pulse width modulation strategies is implemented to control multilevel inverter. The proposed system reduces the components utilization which has utilizes 45% of components for achieving the same level of voltage. The modified new diode clamp multilevel inverter is coupled with induction motor and its performance is validated with three phase induction motor for variable frequency drive. The inverter topologies performance has been investigated by prototype model.

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