This paper will introduce an inset-type axial-gap self-bearing motor (AGBM), which is electrical combination of axial thrust-bearing and flux motor. A method for controlling the position rotating speed AGBM without influence reluctance torque also discussed. First, force motoring are analyzed theoretically, then, control derived. To demonstrate proposed technique, inset two-pole has been constructed tested. The experimental results confirm that works stably with vector control. Moreover, can...

The disturbance and uncertainty of the motor drive systems are very complicated terms. There is no exception for slotless-self bearing (SSBM), where perturbations mainly came from outside as wind affect, inside thermal changing coils, incorrect modeling winding processes. First, to delete these inversed terms, this paper proposes a new super-twisting observer (STDOB) obtain desired goal robust control design. proposed was based on information measured estimated states with aim softening cost...

With the objective of developing a small blood pump with levitated rotor, we propose design scheme for an axial-type self-bearing motor. The axial type motor, which is basically composed disc motor and magnetic bearing, controls both rotation translation rotor. proposed similar to bidirectional except changing magnitudes sides flux control attractive force. However, radial tilt directions rely on passive stability, and, therefore, rotor has poor damping might cause damage constituents....

Abstract Origami technology has been gaining attention across various fields for its ability to impart mechanical properties sheet materials. In this study, a corrugated origami triboelectric nanogenerator (CO‐TENG) soft sensor using paper self‐folding is developed laminate conductive and charged layers onto paper. The performance of the investigated verify capability form an structure with other functional sheets. creates hinges elastic memory properties, which enable conversion...

Introduces the design characteristics of a bidirectional axial gap combined motor-bearing where flat disc motor has both rotation and position control capability. This consists rotor with stator on each side rotor. The motion is actively controlled while other axes are constrained by additional passive or active radial magnetic bearings. Each produces rotating flux in air gap, to generate torque. force changing amplitude flux. Both permanent-magnet induction versions were analyzed...

We have developed 300 V Field-MOS FETs for High-Voltage switching IC. The breakdown voltages are 410 V/370 with specific on-resistance of 1845/11000 mΩ·mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> Field-NMOS/PMOS FETs, respectively. vertical and lateral electric fields both optimized to maximize a voltage at wide range substrate minimize device layout optimization by introducing Field Pate Extended-Drain layer. This technology can...

A self-bearing motor (SBM) is an electric with a magnetically integrated bearing function, that is, it can provide levitation and rotation simultaneously as single actuator. This paper presents the design, operating principle control system for slotless (SSBM). In this stator has no iron core but includes six-phase coils. The rotor consists of permanent magnet enclosed yoke. Magnetic forces generated by interaction between currents magnetic field are used to rotational speed radial position...

An axial self-bearing motor is proposed which can drive an blood pump without physical contact. It a functional combination of the bi-directional disc and active magnetic bearing, where it actively controls single degree-of-freedom motion, while other motions such as lateral vibration are passively stable. For application to pump, has advantages simple structure small size. Through finite element method (FEM) analysis experimental test, its good feasibility verified. Finally, flow fabricated...

Magnetic bearing motors have advantages such as no friction loss, abrasion, and lubrication-free operation. However, they are not widely used due to their high cost large size. In order solve these problems, a self-bearing motor having simple structure with distributed windings is proposed. The rotor consists of permanent magnet an iron yoke, which rotates in body. stator six-phase winding installed between the back yoke rotor. A Lorentz force, generated by interaction current field, control...

Abstract: The noncontact rotary pumps under development for use as artificial heart are highly efficient and can prevent thrombus formation. In these magnetic bearings have been widely used to support the rotors avoid any physical contact. of bearings, however, has led requirements control a large degree freedom separate driving motor. This paper introduces 2 types levitated motors. each which uses combination motor bearing. These motors suitable in blood because they small size replace...

A hybrid switch configured by silicon insulated gate bipolar transistor (Si IGBT) and carbide metal-oxide semiconductor field effect (SiC MOSFET) have been investigated to be a cost effectiveness high efficiency. In this paper, we aimed reducing the loss expanding operation area of frequency current. We measured dependency on various parameters analyze characteristic switch. Especially, focused Gate option, influence parasitic inductance antiparallel diode Si IGBT. addition, proposed new...

In this paper, a method to posture maintenance control of 2-link object by nonprehensile two-cooperative-arm robot without compensating friction is proposed. details, mathematical model the firstly built. Based on model, stable regions for holding motion are obtained while kept arms with static friction. Among regions, robust pairs orientation angles found. Under angles, feedback system designed maintain object's it being held or lifted up. Finally, experimental results shown verify...

This paper discusses the stability of a tilt-controlling axial gap self-bearing motor with single stator. The consists stator and disc rotor is capable controlling torque, position, tilt angles. has six coils, which are driven by separate amplifiers. By adding two types current (a current, same poles as rotor, control plus or minus rotor), four degrees freedom can be actively controlled. In this paper, force, torques, radial forces theoretically analyzed their methods them derived. discussed...

The goal of this paper is use the Luenberger observer to research a new capability controlling axial gap self bearing motor, in which an analytical and experimental evaluation sensorless speed vector control permanent magnet type motor presented. Rotor position are estimated by using state observer, not any shaft mounted sensor as encoder or resolver etc. approach based on estimation back-EMF (or induced voltage) through with help measured stator currents reference voltages. In order achieve...

This paper presents an improvement of sensorless speed vector control for a nonsalient type axial gap self bearing motor (AGBM), in which rotor and position are estimated by using sliding mode observer with full mathematical model. The approach is based on the estimation back-EMF (or induced voltage) through help reference voltages, measured stator currents displacement. In order to achieve accurate position, adaptive gain controller proposed. Experiment was implemented dSpace1104 two three...

The goal of this paper is utilization the state observer to research a new capability controlling axial gap self-bearing motor. Analytical and experimental evaluation for sensorless speed vector control salient motor presented. approach based on estimation extended electromotive force (EEMF) through Luenberger Observer (LO) with help reference voltages, measured stator currents displacement. Experiment has been implemented dSpace1104 two three phase inverters. result destined introduction in...

Magnetic bearing motors have many advantages such as no friction loss, abrasion, lubrication-free quality, very high speed and so forth. However, they are not widely used due to their cost, complex control large size. In order solve these problems, a self-bearing motor is reasonable trend in current researches. This paper will introduce an inset permanent magnet type axial gap self motor, which electrical combination of thrust flux well the method controlling position rotating motor. First,...

Although magnetic bearing motors suffer no friction loss and hence require lubrication, they are not widely used because of their high cost large size. To solve these problems, a self-bearing motor having simple structure with distributed windings is proposed. The rotor consists permanent magnet an iron yoke that rotates in the body. stator six-phase winding installed between back rotor. A Lorentz force, generated by interaction current field, controls rotation speed radial position In this...

A fully-integrated single-chip SiGe SOI/BiCMOS transceiver LSI for 10 Gb/s applications combines 4b FIFO, GHz PLL, 16:1 MUX, input data decision circuit, clock and data-recovery 1:16 DeMUX, loop back function, self-testing using 2/sup 23/-1 PRBS generator. The die is 5.6/spl times/5.3 mm/sup 2/ consumes 2.6 W from 3.3/2.5 V.

This study expresses a novel active vibration control method for structures by using magnetic levitation (MA-GLEV) technologies. When occurs, developed MAGLEV device will repeat to levitate and contact the ceiling of properly. According this movement, frictional force be generated consume energy friction mechanism device. For making stably, sliding model is employed. By varying distance device, normal which related can adjusted. The experimental results show effect on structures, verify...

An inclination control method has been developed to stabilize a flexible rotor on magnetic bearings that operates over several critical bending speeds. It is desired increase the rotating speed of centrifuge which supported by both ends rotor. Each bearing composed pair hybrid-type and can as well position The central are calculated sum difference measured displacements. These two quantities supplied individual proportional derivative controllers obtain actuating signals. controlled provide...

In this paper, a new model of magnetically levitated (Maglev) vertical axis wind turbines (VAWTs) is presented for power generation purposes. The rotor suspended by two permanent magnet attractive type passive magnetic bearings and one control coil; it possible to rotate the without any mechanical contact. proposed solves most common problems which are found on other Maglev VAWTs such as reducing consumption during levitation zero amperes zero-power method rotation loss rotation. addition,...

Superconducting technology has been significantly improved since the superconductor Y-Ba-Cu-O was discovered. This applied to many medical image-processing applications such as magnetoencephalogram (MEG) and magnetic resonance imaging (MRI). Because superconducti ng phenomenon occurs at extremely low temperatures, liquid helium or hydrogen is essential obtain a low-temperature environment. In addition, it well known that decompression of creates superfluid helium. improves performance...