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Sensorless control of interior permanent magnet synchronous motors (IPMSM) is indispensable for electric vehicles to guarantee safety and reliability. However, the performance and stability will be severely deteriorated caused by signal noise and time-...

This paper proposes voltage balance control for 3-level PWM rectifier using a space vector modulation of a matrix converter. When space vector modulation of matrix converter is applied to 3-level PWM rectifier, it can keep balanced DC-link voltage of 3-...

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This article presents a converter for power supplying and implementation of the power quality in low voltage DC distribution network. Based on the voltage phenomenon of the conventional AC distribution network, the power quality of DC distribution network ...

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A surface permanent magnet vernier motor generates a high torque at low rotation speeds. However, an optimal design has not been sufficiently investigated yet. In particular, the counter electromotive force decreases when the permanent magnet thickness is ...

Electromagnetic (EM) docking has a broad application prospect in spacecraft docking. This paper proposes a sensorless control method for EM docking based on model reference adaptive system (MRAS). A double-layers artificial neural network (ANN) is used to ...

This paper presents a highly structured optimization strategy for 12-slot/8-pole surface-mounted permanent magnet synchronous machines (SMPMSM) with radial magnetization pattern. The main goals of the optimization process are to determine the optimal ...

ICEMS 2021 is going hybrid!

Cogging torque is diminished by merging two stage optimizations even at magnet edge of the permanent magnet machine with concentrated slotting and pole arc optimization. Cogging torque is determined in any permanent magnet machine by the relationship that ...

The motor of the electric bike is crucial to the overall performance of the bike. A lightweight but powerful and reliable motor is required for electric vehicles. A Brushless permanent magnet motor is selected to meet those requirements. Axial-flux ...

This paper investigates the impact of the slot and the flux barrier number on the electromagnetic performances (back-emf, maximum torque and power, torque ripple) of a six-phase permanent magnet assisted synchro-reluctance machines (PM-SynRel). The impact ...

Right-sizing of electric machines can optimize the efficiency of electric vehicles and improve the driving range. Conventional scaling laws are based on magnetics without considering the thermal impacts. Therefore, the objective of this contribution is to ...

In this paper, slot pole combination of a novel inherently fault tolerant multiphase winding is discovered analytically for a multiphase permanent magnet synchronous machine (PMSM) against an open phase failure. The discovered windings are capable of ...

There is a huge global demand for clean renewable energy sources to compensate for energy-related carbon dioxide (CO<inf>2</inf>) emissions. The widespread development of multi-megawatt wind turbines with increased energy efficiency is playing an ...

This paper proposes a method of analytical calculation for fault-tolerant current reconfiguration. The method is based on interference between torque waves produced from remaining healthy phase windings of multiphase permanent magnet synchronous machine (...

This paper focuses on the vibration of low-speed outer rotor permanent magnet synchronous machines (PMSM). Based on the finite element method and harmonic response, the vibration of 72 slots 32 poles fractional slot distributed winding (FSDW) and 27 slots ...

The three-degrees-of-freedom hybrid magnetic bearing (3-DOF HMB) is widely used in high-speed motors because of its compact size and small axial space. For high-speed applications, only a solid rotor structure can be used. However, solid materials may ...

Actuators for collaborative robots require high power, compact structure, and safety during human-robot interaction. Series elastic actuators (SEAs) are expected to apply to the robots. SEAs consist of a mechanical lead screw and spring, and they have ...

Switched reluctance motors (SRMs) have worldwide recognition due to their versatility, simple structure, and low maintenance cost with high torque and power capability. Recent developments are being made in SRMs which exponents its growth as a substitute ...

In this paper, we propose a novel two-degree-of-freedom actuator with a simple structure that can be driven by a three-phase inverter. The torque characteristics are clarified by a magnetic field analysis using a three-dimensional finite element method. ...

Gear shift mechanisms using linear electromagnetic actuators (LEAs) can change gears without mechanical fiction. However, they need a large amount of power consumption to hold required positions. In order to solve this problem, we propose a novel LEA for ...

A novel magnetically double self-bearing drive system for ultracentrifugation is presented. It features an operating speed of 100&#x2019; 000 rpm, enabling centrifugal acceleration levels of 200&#x2019; 000g. The new drive system uniquely allows simple ...

Dielectric Elastomer Actuators (DEA) have been introduced two decades ago as a new soft actuator family. In the biomedical field, this technology is very interesting because the devices are similar to human muscles. The main interest of such technology is ...

This paper presents a novel bearingless three-pole motor for two-sided driven applications, i. e., two motors levitating and rotating a common rotor without any mechanical contact. When operating in chemically demanding environments its advantages are ...

Touch-screens are the most relevant interface in the context of human-computer interaction. Moreover, they are widely used as interaction means for digital musical instruments, where a complex action-perception loop is involved in the user experience. ...

Magnetorheological fluid is a type of smart material whose viscosity changes quickly when exposed to an external magnetic field. This paper focuses on the optimized design of a miniature magnetorheological valve integrated into a novel smart shoe-sole ...

Fully passively levitated self-bearing machines have recently been introduced to increase compactness and reliability of magnetically suspended systems while lowering their cost. An electromechanical model allowing to predict their force and torque ...

This paper reported an IPMSM&#x0027;s rotor position estimation error by PWM carrier synchronized voltage injection method for encoder-less vector control when the operation condition and the injected voltage amplitude changes. In addition, an output ...