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direct torque control (DTC) 3

induction motor 3

converter 2

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Reduced torque ripple for rotational load with high inertia of HY-2A satellite

Zhou Yong,Li Zhengjun,Ma Chao and Wang Xiaoning

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 43-49

Abstract: account attitude stability，microwave scattermeter and microwave radiometer while rotating need to reduce torqueripple.Restraining cogging torque of motor， eliminating quantization error with fix angle timing，compensatingThe control system and motor has been simulated by accurate model，results show that the torque ripple

Keywords： high inertia     torque ripple     quantization error     dead time     accurate model    

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Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating Article

He HAO,Wei-zhong FEI,Dong-min MIAO,Meng-jia JIN,Jian-xin SHEN

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8,   Pages 814-824 doi: 10.1631/FITEE.1500238

Abstract: In this study, we investigated the torque characteristics of large low-speed direct-drive permanent magnetThe influences of the radial ventilating ducts in the stator on torque characteristics, such as torquebut also increase the torque ripple in the machine.Furthermore, the torque ripple of the machine under certain load conditions may even be increased byrotor step skewing despite a reduction in cogging torque.

Keywords： Permanent magnet synchronous generator (PMSG)     Radial ventilating air duct     Torque ripple     Step skewing    

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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: A nonlinear stiffness actuator (NSA) could achieve high torque/force resolution in low stiffness rangeincluding leaf springs and especially designed cams, which could perform a predefined relationship between torqueAn analytical methodology that maps the predefined relationship between torque and deflection to theof performing predefined torque‒deflection profiles.Three kinds of prototype experiments, including verification experiment of the predefined torque‒deflection

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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Exponential response electrical pole-changing method for a five-phase induction machine with a current sliding mode control strategy Article

Jia-qiang YANG, Rong-sen YIN, Xiao-jun ZHANG, Jin HUANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1151-1166 doi: 10.1631/FITEE.1601728

Abstract: Electrical pole-changing technology leads to torque ripple and speed fluctuation despite broadening theTo reduce the torque ripple and speed fluctuation of the machine, we investigate an exponential responseresponse pole-changing with PI control method, the proposed pole-changing method greatly reduces the torqueripple and speed fluctuation of the IM during the pole-changing process.

Keywords： Five-phase induction machine     Pole-change     Sliding-mode control     Exponential response     Torque ripple    

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Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 279-289 doi: 10.1007/s11708-014-0312-z

Abstract: Solar and wind are the most promising renewable energy resources. But their unpredictable and varying nature prevents them from being used as the sole resource for power generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an efficient role in combating with the drawbacks related to renewable power generation. In the proposed scheme, wind energy is harnessed by a hybrid vertical axis wind turbine, solar energy is utilized by a Stirling engine, and the surplus energy is stored in a winding spring. The paper discusses the working methodologies and analyses the performance of such 2.6 kW hybrid power plant model. It has been observed that the plant is capable of consistently generating 50% of its rated capacity irrespective of limitations in solar and wind resources.

Keywords： hybrid vertical axis wind turbine     Stirling engine     solar-thermal energy     wind energy     constant torque spring    

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Comparative study of various artificial intelligence approaches applied to direct torque control of induction

Moulay Rachid DOUIRI, Mohamed CHERKAOUI

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 456-467 doi: 10.1007/s11708-013-0264-8

Abstract: In this paper, three intelligent approaches were proposed, applied to direct torque control (DTC) ofobtained demonstrate the feasibility of the adaptive network-based fuzzy inference system based direct torqueCompared with the classical direct torque control, fuzzy logic based direct torque control (FL-DTC),and neural networks based direct torque control (NN-DTC), the proposed ANFIS-based scheme optimizes theelectromagnetic torque and stator flux ripples, and incurs much shorter execution times and hence the

Keywords： adaptive neuro-fuzzy inference system (ANFIS)     artificial neural network     direct torque control (DTC)     fuzzy    

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Analytical model and finite element computation of braking torque in electromagnetic retarder

Lezhi YE,Guangzhao YANG,Desheng LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 368-379 doi: 10.1007/s11465-014-0314-x

Abstract:

An analytical model has been developed for analyzing the braking torque in electromagnetic retarderThe magnetic field distribution in air gap, the eddy current induced in the rotor and the braking torqueThe influencing factors of braking torque have been studied.

Keywords： electromagnetic retarder     magnetic field distribution     magnetic circuit     finite element method    

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.A robust electromagnetic torque and flux controllers are designed to overcome the conventional SVM-DTCdrawbacks and to ensure fast response and full reference tracking with desired dynamic behavior and low ripple

Keywords： induction motor     direct torque control (DTC)     space vector modulation (SVM)     sliding mode control (SMC)    

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A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot

Kejia LI, Xilun DING, Marco CECCARELL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 219-230 doi: 10.1007/s11465-012-0320-9

Abstract: A novel index of total torque is proposed by considering the posture of the supporting legs.

Keywords： six-legged robots     dynamic modeling     performance index    

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Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC

F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 247-254 doi: 10.1007/s11708-012-0190-1

Abstract: synchronous motor (IPMSM) drives method with extended Kalman filter (EKF) for speed, rotor position and load torqueThe direct torque control (DTC) technique for permanent magnet synchronous motor (PMSM) is receiving

Keywords： direct torque control (DTC)     sensorless control     extended Kalman filter (EKF)     permanent magnet synchronous    

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Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 86-90 doi: 10.1007/s11465-008-0012-7

Abstract: To enhance the performance of a hydrodynamic torque converter and thoroughly understand the trait offlow, a numerical simulation method of internal 3D flow for the three-element centrifugal hydrodynamic torqueThe performance parameters of the hydrodynamic torque converter were predicted.distribution of the flow field, have practical significance for the design and improvement of a hydrodynamic torque

Keywords： velocity distribution     calculation     numerical simulation     three-element centrifugal     converter    

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Static balancing of planar articulated robots

Giuseppe QUAGLIA,Zhe YIN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 326-343 doi: 10.1007/s11465-015-0355-9

Abstract: mechanical springs are discussed and their parameters are decided according to the requirements of torque

Keywords： robotics     static balancing     pneumatic spring     mechanical spring     torque compensation    

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Study on auto-disturbances-rejection AC adjustable speed based on speed sensorless direct torque control

Dai Juchuan,Wu Xinkai,Wen Li

Strategic Study of CAE 2009, Volume 11, Issue 4,   Pages 91-95

Abstract:

In direct torque control system, the PID controller is often adoptedIn this paper, new auto-disturbance-rejection controller (ADRC) is introduced into direct torque controlThe performance difference is analyzed between PID controller and ADRC in speed sensorless direct torque

Keywords： direct torque control     active disturbances rejection control     speed observer     speed sensorless     induction    

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Development of an analytical model to estimate the churning losses in high-speed axial piston pumps

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-021-0671-1

Abstract: high-speed axial piston pumps, but accurate analytical models are not available to estimate the drag torqueIn this paper, we derive the analytical expressions of the drag torque acting on the key rotating partsThe calculated drag torque agrees well with the experimental data over a wide range of rotational speeds

Keywords： axial piston pump     rotating parts     high rotational speed     churning losses     drag torque    

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Modeling and control of a permanent magnet synchronous generator dedicated to standalone wind energy conversion system

Louar FATEH,Ouari AHMED,Omeiri AMAR,Djellad ABDELHAK,Bouras LAKHDAR

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 155-163 doi: 10.1007/s11708-016-0410-1

Abstract: Matlab chain was established with the introduction of control techniques, such as direct control of the torque

Keywords： magnet synchronous generator (PMSG)     converter     proportional-integral (PI)     control     direct control of the torque    

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Title Author Date Type Operation

Reduced torque ripple for rotational load with high inertia of HY-2A satellite

Zhou Yong,Li Zhengjun,Ma Chao and Wang Xiaoning

Journal Article

Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating

He HAO,Wei-zhong FEI,Dong-min MIAO,Meng-jia JIN,Jian-xin SHEN

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

Exponential response electrical pole-changing method for a five-phase induction machine with a current sliding mode control strategy

Jia-qiang YANG, Rong-sen YIN, Xiao-jun ZHANG, Jin HUANG

Journal Article

Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Journal Article

Comparative study of various artificial intelligence approaches applied to direct torque control of induction

Moulay Rachid DOUIRI, Mohamed CHERKAOUI

Journal Article

Analytical model and finite element computation of braking torque in electromagnetic retarder

Lezhi YE,Guangzhao YANG,Desheng LI

Journal Article

Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Journal Article

A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot

Kejia LI, Xilun DING, Marco CECCARELL

Journal Article

Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC

F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF

Journal Article

Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Journal Article

Static balancing of planar articulated robots

Giuseppe QUAGLIA,Zhe YIN

Journal Article

Study on auto-disturbances-rejection AC adjustable speed based on speed sensorless direct torque control

Dai Juchuan,Wu Xinkai,Wen Li

Journal Article

Development of an analytical model to estimate the churning losses in high-speed axial piston pumps

Journal Article

Modeling and control of a permanent magnet synchronous generator dedicated to standalone wind energy conversion system

Louar FATEH,Ouari AHMED,Omeiri AMAR,Djellad ABDELHAK,Bouras LAKHDAR

Journal Article