An improved fault-tolerant control scheme for PWM inverter-fed induction motor-based EVs

Abstract

This paper proposes an improved fault-tolerant control scheme for PWM inverter-fed induction motor-based electric vehicles. The proposed strategy deals with power switch (IGBTs) failures mitigation within a reconfigurable induction motor control. To increase the vehicle powertrain reliability regarding IGBT open-circuit failures, 4-wire and 4-leg PWM inverter topologies are investigated and their performances discussed in a vehicle context. The proposed fault-tolerant topologies require only minimum hardware modifications to the conventional off-the-shelf six-switch three-phase drive, mitigating the IGBTs failures by specific inverter control. Indeed, the two topologies exploit the induction motor neutral accessibility for fault-tolerant purposes. The 4-wire topology uses then classical hysteresis controllers to account for the IGBT failures. The 4-leg topology, meanwhile, uses a specific 3D space vector PWM to handle vehicle requirements in terms of size (DC bus capacitors) and cost (IGBTs number). Experiments on an induction motor drive and simulations on an electric vehicle are carried-out using a European urban driving cycle to show that the proposed fault-tolerant control approach is effective and provides a simple configuration with high performance in terms of speed and torque responses.

Indirect vector controlled of an induction motor using H ∞ current controller for IGBT open circuit fault compensation

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Performance Analysis of Plug-in Electric Vehicle Supported DVR for Power-Quality Improvement and Energy Back-Up Strategy

“…The charging system needs to share the interface port by safely stopping to different vehicles immediately, it needs to share the circuit by apportioning the open energy to not over-load the circuit, and it needs to share as far as possible by acutely booking charging keeping in mind the ultimate objective to maintain a key remove from peak use. To deal with this request, an EV charging system has been created that safely increase the amount of EVs that can be related with a circuit by proportioning the power assigned to each EV [4]. Power systems have been encountering great changes in electric power generations, transmissions, and distributions.…”

Robust Direct Torque Control with Super‐Twisting Sliding Mode Control for an Induction Motor Drive

“…In the recent years, the software solutions such as the DSP have been used by several researchers (e.g., dSPACE 1104) in the goal of controlling the electrical motor [39,41,42]. The principal limitation factor of such solutions is the dependence of the processing speed on the algorithm complexity through the adoption of a serial processing [43]. In the same vein, some researchers have explored the FPGA use and utility in order to overcome the DSP limitation [38,[44][45][46][47].…”