Electric vehicles (EVs) have a huge potential to dominate over the conventional combustion engine vehicles and become the future of road transport while conserving this planet from threatening calamities caused by global warming. EVs offer several benefits over internal combustion engines, especially in terms of lower emission of greenhouse gases, higher energy efficiency, and less dependency upon fossil fuels. Despite all of that, range anxiety, charging infrastructure are two significant limiting factors for the rapid adoption of EVs. This paper presents a thorough literature review on the latest deployment, and challenging issues in the implementation of EV infrastructure, charging power levels, in conjunction with various charging methods and examines the impacts of EVs on the electric grid.

With the increasing demand for electric vehicles, reliability in motor drives is an issue of growing importance. Over the years, various fault tolerant three-phase motor drive topologies have been introduced and their performances have been investigated. Evaluation of the post-fault power of a fault-tolerant drive should take into account both the post-fault torque and speed, which depend on both the post-fault current and voltage limits. Nevertheless, the post-fault motor voltage limits are usually omitted from discussion. Furthermore, current limit in induction motor drive is not as direct as that in permanent magnet motor drive, due to the presence of the flux current. In this paper, the performances of available fault tolerant three-phase induction motor drives have been reinvestigated, taking into account the impact of not just currents, but also voltage limits for both the inverter and machine. By deriving the post-fault machine voltage equations, the effects of machine parameters and operating point on voltage limit and hence speed limit are explained. Depending on the topology, the motor may be able to run above the rated speed to gain extra power. The analysis is verified through experiment results on a 1kW induction machine for four different fault tolerant drive topologies.

Electric vehicles (EVs) in Malaysia are gaining more attention and interest from the public. However, the electric vehicle’s exposure, awareness, and sales are still low compared to other countries. In this review, the challenges associated with implementing the electric vehicle culture in Malaysia are thoroughly reviewed, including the obstacles that the Malaysian government, policymakers, EV manufacturers, and EV users face in terms of EV cost, travel demand, charging station availability, impact on the power grid, and battery capacity. Then, all the identified challenges have been addressed by considering the user behavior, travel demand, socio-economical culture of Malaysia, current policies taken by the government of Malaysia, and the psychological outlook of Malaysians towards EV adoption. Moreover, potential suggestions have been proposed that the government of Malaysia may adopt during policy planning and when seeking to provide incentives to the users. Finally, a concrete conclusion has been drawn by disseminating the vision about the future of EVs in Malaysia. The proposed review of the technologies, challenges, prospects, and potential solutions associated with EV adoption in Malaysia can provide a base for proper strategic policy and help policymakers frame strategies to achieve the targets. This review could help achieve sustainable EV transport, and the successful implementation of Malaysian National Automotive Plan 2020, with the goal of adopting next-generation green vehicles.

With the increasing proliferation of variable speed drive, the demand for the more reliable drive is also on the rise. Despite the growing interest on more advanced motors like permanent magnet and flux switching motors, three-phase induction motors (3ph-IMs) are still the main workhorse in the industry and hence fault-tolerant control of these motor drives remains an interesting and important topic. In this paper, a simple fault-tolerant field oriented control (FOC) technique for 3ph-IMs is presented. It is shown that by injecting zero-sequence compensation voltage in a feedforward manner, open-circuit faults can be effectively tolerated. Compared to the previous feedforward fault tolerant control methods, the proposed approach does not require the knowledge of the magnetizing inductance, which is tricky to be obtained in induction motors. Furthermore, the unified feedforward approach allows same control structure to be used for different fault-tolerant 3ph-IMs drive topologies, with minor modifications to the feedforward terms. In addition, the effect of inverter non-idealities on the performance of the proposed control method are also highlighted and addressed. The effectiveness of the proposed controller is verified using MATLAB simulation and further validated using experimental tests.