With ever-increasing concerns on our environment, there is a fast growing interest in electric vehicles (EVs) and hybrid EVs (HEVs) from automakers, governments, customers. As drives are the core of both HEVs, it pressing need for researchers to develop advanced electric-drive systems. In this paper, an overview permanent-magnet (PM) brushless (BL) HEVs presented, with emphasis machine topologies, drive operations, control strategies. Then, three major research directions PM BL systems...

Electric vehicles (EVs) are regarded as one of the most effective tools to reduce oil demands and gas emissions. And they welcome in near future for general road transportation. When EVs connected power grid charging and/or discharging, become gridable (GEVs). These GEVs will bring a great impact our society thus human life. This paper investigates discusses opportunities challenges connecting with grid, namely, vehicle-to-home (V2H), vehicle-to-vehicle (V2V), vehicle-to-grid (V2G)...

In response to concerns about energy cost, dependence, and environmental damage, a rekindling of interest in electric vehicles (EVs) has been obvious. Based on the "California rules" zero emission United States, as well similar tightened air pollution regulation Europe, Asia, much rest world, market size EVs will be enormous. Thus, development power electronics technology for take an accelerated pace fulfil needs. This paper reviews current status multidisciplinary technologies EVs. Various...

Popularization of electric vehicles (EVs) is an effective solution to promote carbon neutrality, thus combating the climate crisis. Advances in EV batteries and battery management interrelate with government policies user experiences closely. This article reviews evolutions challenges (i) state-of-the-art technologies (ii) for hybrid pure EVs. The key reveal major features, pros cons, new technological breakthroughs, future challenges, opportunities advancing mobility. critical review...

This paper proposes a novel in-wheel motor, which artfully integrates magnetic gear into permanent-magnet brushless (PMBL) DC motor so that they can share common PM rotor, hence offering both high efficiency and power density. Moreover, the low-speed requirement for direct driving high-speed compact design be achieved simultaneously. A 2-kW 600/4400-rpm magnetic-geared outer-rotor PMBL is designed analyzed, particularly suitable battery-powered electric motorcycles

This paper presents a new permanent-magnet (PM) brushless machine for wind power generation. adopts an outer-rotor topology, aiming at capturing directly. In order to achieve high density, high-speed PM generator is artfully integrated with coaxial magnetic gear. The design details, emphasis on the special constraints of generation, are elaborated. By using time-stepping finite element method, static characteristics as well no-load and on-load operations simulated. A prototype also built...

With ever-increasing oil prices, there is fast growing interest in hybrid electric vehicles (HEVs) globally. Thus, it a pressing need for researchers to develop emerging energy-efficient devices various kinds of HEVs, including the micro hybrids, mild and full hybrids. In this paper, three key technologies are identified discussed: 1) thermoelectric waste-heat recovery temperature control systems all especially hybrids; 2) integrated-starter-generator 3) electronic continuously variable...

This paper proposes a coaxial magnetic gear that offers higher torque density, lower cogging torque, and iron losses than its counterparts. The key is to newly employ Halbach permanent-magnet (PM) array constitute the PM poles in inner rotor partial (two segments per pole) for outer rotor. corresponding field distributions, transmission, ripples are analytically discussed. Then, performances quantitatively assessed by using finite-element method.

In this paper, three control schemes with variable switching frequencies are proposed and analyzed for the paralleled voltage source inverters (VSIs) fed permanent magnet synchronous motor (PMSM) drive. The could be applied in low-speed operation region of high-power drive system, where frequency modulation index is high. First, field-oriented (FOC) phase-shifted chaotic space vector (SVM) under frame FOC sinusoidal pulse width stationary VSIs PMSM PWM not only eliminate specific harmonics...

This paper proposes a new outer-rotor permanent-magnet (PM) vernier machine for direct-drive wind power generation, which can offer low-speed operation to directly capture power, and enable high-speed rotating field design maximize the density. Compared with its mechanical gear counterpart, proposed eliminate wear tear as well transmission loss, thus improving generation reliability efficiency. The key is newly introduce flux-modulation poles effectively modulate of armature windings PM...

With ever-increasing concerns on energy issues, the development of renewable sources is becoming more and attractive. This paper first reviews both wind power photovoltaic (PV) generation techniques their maximum-power-point tracking (MPPT) methods. Then, a new stand-alone wind-PV hybrid system proposed for application to remote isolated areas. For branch, doubly excited permanent-magnet brushless machine used capture maximum by using online flux control. PV single-ended primary inductance...

This paper presents the design and analysis of a new doubly salient permanent magnet (DSPM) motor. The corresponding output power equation is analytically derived. initial calculation motor dimensions parameters, namely, core diameter, stack length, size, winding turns, are also discussed. An 8/6-pole DSPM designed built for exemplification. Moreover, finite element this carried out to investigate magnetic field distribution at different rotor positions load currents, in which leakage flux...

This paper presents an integrated control scheme for vehicle-to-grid (V2G) operation in the distribution grid with renewable energy sources. A hierarchical framework is proposed V2G applications, and mathematical models are built both smart charging constraints. power regulated to minimize total operating cost (TOC) while providing frequency regulation. The simulation results verify algorithm coordinating distributed electric vehicle (EV) aggregations varying wind daily load. For dynamic...

This paper quantitatively compares two coaxial magnetic gears (CMGs) with different topologies, namely, the CMG installed radially magnetized permanent magnets (CMGRM) and Halbach (CMGHM). By using 3D finite element method, end-effect performances of both CMGs are investigated. Analysis results show that CMGHM can offer higher pull-out torque, lower torque ripple iron losses than CMGRM. Experimental also given for verification.

A new permanent-magnet (PM) hybrid brushless (PMHB) machine is proposed and implemented as the integrated starter-generator (ISG) for electric vehicles (HEVs). It has advantages of higher torque density than other PMHB machines much wider speed range PM machines. The key to tune its dc-field winding current in such a way that three major modes ISG system operation HEVs, namely, engine cranking, battery charging, boosting, can be achieved effectively. finite-element method employed simulate...

With ever-increasing concerns for the safety and convenience of power supply, there is a fast growing interest in wireless transfer (WPT) industrial devices, consumer electronics, electric vehicles (EVs). As resonant circuit one cores both near-field far-field WPT systems, it pressing need researchers to develop high-efficiency high-frequency circuit, especially mid-range system. In this paper, an overview circuits system presented, with emphasis on non-resonant converters tank inverters as...

This paper presents a new effective sandwiched wireless power transfer (WPT) system, which is adopted to recharge the battery of micro medical robotics for cardiac pacemaker. The key design use distinct topology in both transmitter and receiver coils, whose operating frequency 160 kHz significantly lower than reported WPT system up megahertz. Furthermore, implantable adopts bilateral coil design, can harness more within limited size. Meanwhile, with transmitting proposed achieves high...

Redundant flux-switching permanent-magnet (R-FSPM) motors are a new class of brushless machines having magnets in the stator, offering high power density, simple and robust rotor structure, good thermal dissipation conditions. This paper proposes control strategy for fault-tolerant operation R-FSPM motor drive considering capability limitation converter. The key is to operate remedial mode by injecting harmonic currents, so-called injected-harmonic-current (RIHC) mode. Moreover, losses at...

This paper presents an overview of current wireless power transfer (WPT) technologies for the application electric vehicles (EV) charging. The basic principles each technology are introduced. Followed by classification, advantages and limitations EV charging discussed. Promising such as coupled magnetic resonance gear systematically reviewed. latest development, key technical issues, challenges state-of-art researches research trends also been given.