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  • [2106.09496v1] Calculation of force and torque between

    2021-6-17 · In this article, formulas for the calculation of force and torque between two circular filaments arbitrarily oriented in space were derived by using Kalantarov-Zeitlin's method. Formulas are presented in an analytical form through integral expressions, whose kernel function is expressed in terms of the elliptic integrals of the first and second kinds, and provide an alternative formulation to ...

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  • Torque Ripple and EMI Noise Minimization in PMSM Using ...

    2008-1-4 · This paper proposes an active filter (AF) topology to reduce the torque ripple and harmonic noises in a permanent-magnet synchronous motor. The topology consists of an insulated-gate bipolar transistor AF and two resistance-inductance-capacitance high-pass electromagnetic interference (EMI) noise filters, i.e., one in the primary and the other in the secondary circuit of the coupling 1:1 ...

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  • Maximum Torque Per Watt (MTPW) field-oriented

    2021-3-15 · A new field-oriented control strategy for induction motor is proposed in the paper. It is called Maximum Torque Per Watt (MTPW) and allows obtaining the minimum value of the sum of the stator and rotor losses due to joule effect, and of the iron losses, for a given value of the reference torque …

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  • GitHub - LiWentomng/OrientedRepPoints: The code for ...

    2021-6-14 · Oriented RepPoints for Aerial Object Detection. The code for the implementation of “Oriented RepPoints”. (arXiv preprint)Introduction. Oriented RepPoints employs a set of adaptive points to capture the geometric and spatial information of the arbitrary-oriented objects, which is able to automatically arrange themselves over the object in a spatial and semantic scenario.

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  • Optimization-Oriented High Fidelity NFIR Models for ...

    2020-2-20 · In this paper, optimization-oriented high fidelity indicated torque models which cover the whole operating regions under both steady-state and transient cycles for heavy-duty vehicles are developed. Two different experiments are performed and their data are merged to be utilized in the training of the models. In the first experiment, all combustion input channels are excited by quadratic …

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  • Field-oriented Control (Vector Control) for Brushless DC ...

    2021-6-24 · Field-oriented control diagram. Image used courtesy of Performance Motion Devices . FOC, or vector control, is most commonly used on brushless DC (BLDC) or DC motors that utilize permanent magnets. The position of the rotor and the phase of the magnetic field need to be known entities to provide torque to the motor shaft.

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  • Rotor flux oriented torque-control of induction machines ...

    1993-9-16 · This paper describes a speed sensorless rotor flux oriented torque control of induction machines which utilises stator flux components as control variables. Combining the advantages of rotor flux orientation and stator flux space vector control leads to high performance drives using a simple control scheme. This scheme is affected by total leakage inductance variations which determine …

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  • Driving behavior oriented torque demand regulation for ...

    2021-8-1 · A novel driving behavior-oriented torque demand regulation method is proposed for EV with SPD. By optimally regulating the torque demand under disperse driving behaviors, the eco-driving potential of the studied EV with SPD can be further promoted.

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  • Direct torque control versus indirect field-oriented ...

    2020-10-1 · Performance and energy efficiency of induction motors (IM) used in electric vehicle (EV), by applying two control methods, namely the indirect field-oriented control (IFOC) method and the direct torque control (DTC) method, are compared. The tracking accuracy under changing vehicle speed circumstances for different speed controllers (classical PI, fuzzy logic, and sliding mode speed ...

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  • Oriented Attachment of Cubic or Spherical BaTiO3 ...

    2015-10-5 · It has been believed that dipole–dipole interaction is the reason for the oriented attachment (OA) of nanocrystals if they have electric or magnetic dipoles. In this study, the role of van der Waals torque (Casimir torque) originated in dielectric anisotropy of a nanocrystal is numerically studied for the first time on OA of cubic or spherical BaTiO3 nanocrystals.

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  • Field oriented control of permanent magnet synchronous ...

    2021-3-23 · The Field Oriented Control (FOC) is a form a vector control [1]. The currents, voltages, and magnetic fluxes of the machine are expressed as space vectors inside a Rotating Reference Frame (RRF). In the case of a synchronous machine, the stator and rotor fluxes are synchronous [2]. Therefore, a natural choice is to orient the RRF such as its d ...

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  • Field Oriented Control of PM Motors

    2012-4-8 · advanced control strategies, which use mathematical transformations in order to decouple the torque generation and the magnetization functions in an AC induction motor. Such decoupled torque and magnetization control is commonly called rotor flux oriented control, or simply Field Oriented …

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  • Three-dimensional printing of continuous-fiber

    2016-3-11 · Three-dimensional (3D) printing 1,2,3 or additive manufacturing 4,5,6 enables the fabrication of near-net-shaped complex 3D parts without expensive molds or tools in short periods of time, based ...

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  • Driving behavior oriented torque demand regulation for ...

    2021-8-1 · A novel driving behavior-oriented torque demand regulation method is proposed for EV with SPD. By optimally regulating the torque demand under disperse driving behaviors, the eco-driving potential of the studied EV with SPD can be further promoted.

    Get Price
  • 'Hybrid Sensorless Field Oriented and Direct Torque ...

    The objective of this thesis is to design a hybrid sensorless closed-loop motor controller using a combination of Field-Oriented Control (FOC) and Direct Torque Control (DTC) for brushless DC motors used in multi-rotor aerial vehicles. The primary challenge is the wide range of desired working speeds, which can quickly vary from low speed to high speed.

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  • Maximum Torque Per Watt (MTPW) field-oriented

    2021-3-15 · A new field-oriented control strategy for induction motor is proposed in the paper. It is called Maximum Torque Per Watt (MTPW) and allows obtaining the minimum value of the sum of the stator and rotor losses due to joule effect, and of the iron losses, for a given value of the reference torque …

    Get Price
  • Direct torque control versus indirect field-oriented ...

    2020-10-1 · Performance and energy efficiency of induction motors (IM) used in electric vehicle (EV), by applying two control methods, namely the indirect field-oriented control (IFOC) method and the direct torque control (DTC) method, are compared. The tracking accuracy under changing vehicle speed circumstances for different speed controllers (classical PI, fuzzy logic, and sliding mode speed ...

    Get Price
  • Field-Weakening Control (with MTPA) of PMSM - MATLAB ...

    This example implements the field-oriented control (FOC) technique to control the torque and speed of a three-phase permanent magnet synchronous motor (PMSM). The FOC algorithm requires rotor position feedback, which is obtained by a quadrature encoder sensor.

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  • Precision Torque Control in an Easy-To-Use AC Drive

    2014-4-16 · 6 Control Specifications Current Torque Control Indirect Self-Organized, Field-Oriented Control Current-regulated, sine-coded PWM with programmable carrier frequency. Refer to Derating Guidelines on Pages 43 to 51. Output Voltage Range Three voltage ranges are available. Each voltage range is line dependent and can power a motor

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  • Permanent magnet synchronous machine field-oriented ...

    The PMSM Field-Oriented Control block implements a field-oriented control structure for a permanent magnet synchronous machine (PMSM). Field Oriented Control (FOC) is a performant AC motor control strategy that decouples torque and flux by transforming …

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  • [2106.09496v1] Calculation of force and torque between

    2021-6-17 · In this article, formulas for the calculation of force and torque between two circular filaments arbitrarily oriented in space were derived by using Kalantarov-Zeitlin's method. Formulas are presented in an analytical form through integral expressions, whose kernel function is expressed in terms of the elliptic integrals of the first and second kinds, and provide an alternative formulation to ...

    Get Price
  • Torque Ripple and EMI Noise Minimization in PMSM Using ...

    2008-1-4 · This paper proposes an active filter (AF) topology to reduce the torque ripple and harmonic noises in a permanent-magnet synchronous motor. The topology consists of an insulated-gate bipolar transistor AF and two resistance-inductance-capacitance high-pass electromagnetic interference (EMI) noise filters, i.e., one in the primary and the other in the secondary circuit of the coupling 1:1 ...

    Get Price
  • Maximum Torque Per Watt (MTPW) field-oriented

    2021-3-15 · A new field-oriented control strategy for induction motor is proposed in the paper. It is called Maximum Torque Per Watt (MTPW) and allows obtaining the minimum value of the sum of the stator and rotor losses due to joule effect, and of the iron losses, for a given value of the reference torque …

    Get Price
  • GitHub - LiWentomng/OrientedRepPoints: The code for ...

    2021-6-14 · Oriented RepPoints for Aerial Object Detection. The code for the implementation of “Oriented RepPoints”. (arXiv preprint)Introduction. Oriented RepPoints employs a set of adaptive points to capture the geometric and spatial information of the arbitrary-oriented objects, which is able to automatically arrange themselves over the object in a spatial and semantic scenario.

    Get Price
  • Optimization-Oriented High Fidelity NFIR Models for ...

    2020-2-20 · In this paper, optimization-oriented high fidelity indicated torque models which cover the whole operating regions under both steady-state and transient cycles for heavy-duty vehicles are developed. Two different experiments are performed and their data are merged to be utilized in the training of the models. In the first experiment, all combustion input channels are excited by quadratic …

    Get Price
  • Field-oriented Control (Vector Control) for Brushless DC ...

    2021-6-24 · Field-oriented control diagram. Image used courtesy of Performance Motion Devices . FOC, or vector control, is most commonly used on brushless DC (BLDC) or DC motors that utilize permanent magnets. The position of the rotor and the phase of the magnetic field need to be known entities to provide torque to the motor shaft.

    Get Price
  • XC886/888 CM/CLM Sensorless FOC for PMSM Motors

    2019-5-15 · Sensorless Field Oriented Control for PMSM Motors Introduction Application Note 2 V1.0, 2007-05 1 Introduction Field Oriented Control (FOC) is increasingly being used in consumer and industrial motor control owing to the higher efficiency, better dynamic response and less torque ripple.

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  • Precision Torque Control in an Easy-To-Use AC Drive

    2014-4-16 · 6 Control Specifications Current Torque Control Indirect Self-Organized, Field-Oriented Control Current-regulated, sine-coded PWM with programmable carrier frequency. Refer to Derating Guidelines on Pages 43 to 51. Output Voltage Range Three voltage ranges are available. Each voltage range is line dependent and can power a motor

    Get Price
  • Smoothing EV powertrain performance with a field

    2021-6-23 · Once this value is known, the stator current is aligned with the torque axis of the rotor. To achieve peak efficiency, the stator magnetic flux must be perpendicular to the rotor magnetic flux. FOC-based motor control . On paper, a typical field-oriented …

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  • BLDC Motor Control - MATLAB & Simulink

    2021-8-25 · PMSM motors typically use field-oriented control only. Trapezoidal BLDC motor control is a simpler technique than field-oriented control; it energizes only two phases at a time. Only one PID controller is required for torque control, and, as opposed to field-oriented control, there is no need for coordinate transformations using Park and Clarke ...

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  • 'Task-oriented' exercise improves hamstring strength and ...

    Background and purpose: Despite the belief that after cerebral infarction only limited functional gains are possible beyond the subacute period, we tested the hypothesis that a 12-week program of 'task-oriented' treadmill exercise would increase muscle strength and decrease spastic reflexes in chronic hemiparetic patients. Methods: Fourteen subjects, aged 66+/-3 (mean+/-SEM) years, with ...

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  • AC3 - Field-Oriented Control Induction 200 HP Motor

    It models a field-oriented control (FOC) induction motor drive with a braking chopper for a 200HP AC motor. The induction motor is fed by a PWM voltage source inverter, which is built using a Universal Bridge Block. The speed control loop uses a PI controller to produce the flux and torque references for the FOC controller.

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