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Electromagnetic modeling and control of switched reluctance motor using finite elements

Ali ARIF,Abderrazak GUETTAF,Ahmed Chaouki MEGHERBI,Said BENRAMACHE,Fateh BENC HABANE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 355-363 doi: 10.1007/s11708-014-0319-5

Abstract: This paper considered the implementation of a current control method for switched reluctance motors (SRMs) and presented a novel approach to the accurate online modeling of a three phase 6/4 SRM drive.A three phase 6/4 SRM is given theoretical calculation of inductance of the SRM model.The SRM was then tested in a Matlab/Simulink environment and numerically analyzed by using nonlinear

Keywords: switched reluctance motor (SRM)     hysteresis     control     finite element analysis    

Performance prediction of switched reluctance generator with time average and small signal models

Jyoti KOUJALAGI, B. UMAMAHESWARI, R. ARUMUGAM

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 56-68 doi: 10.1007/s11708-012-0216-8

Abstract: This paper presents the complete mathematical model and predicts the performance of switched reluctanceThe simulation is performed to choose the control parameters and study the performance of switched reluctance

Keywords: generator     reluctance     switching model     small signal model     time average model    

Digital switched hydraulics

Min PAN, Andrew PLUMMER

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 225-231 doi: 10.1007/s11465-018-0509-7

Abstract:

This paper reviews recent developments in digital switched hydraulics particularly the switched inertance

Keywords: digital hydraulics     switched inertance hydraulic systems     energy efficiency     high-speed switching valve    

Distributed governance of Solar Radiation Management geoengineering: A possible solution to SRM’s “free-driver

Andrew LOCKLEY

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 551-556 doi: 10.1007/s42524-019-0055-y

Abstract: Solar Radiation Management geoengineering (SRM) offers relatively inexpensive, rapid temperature control

Keywords: geoengineering     Solar Radiation Management     governance     decentralised    

Linear ultrasonic motor using quadrate plate transducer

Jiamei JIN, Chunsheng ZHAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 88-91 doi: 10.1007/s11465-009-0016-y

Abstract: A linear ultrasonic motor using a quadrate plate transducer was developed for precision positioning.This motor consists of two pairs of Pb(Zr,Ti)O piezoelectric ceramic elements, which are piezoelectricallyexcited into the second-bending mode of the motor stator’s neutral surface in two orthogonal directionsThe performance characteristics achieved by the motor are: 1) a maximum linear speed of more than 60

Keywords: ultrasonic motor     quadrate plate     coincident frequency     alternant contact    

Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 351-362 doi: 10.1007/s11465-016-0407-9

Abstract:

A linear oscillating motor is an electromagnetic actuator that can achieve short-stroke reciprocatingIn this paper, a general framework of linear oscillating motor design and optimization is addressed in

Keywords: linear oscillating motor     linear pump     magnetic field     motor optimization    

Security of solar radiation management geoengineering

Andrew LOCKLEY

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 102-116 doi: 10.1007/s42524-019-0008-5

Abstract:

Solar Radiation Management (SRM) geoengineering is a proposed response to anthropogenic global warmingSRM disruption risks dangerous temperature rise (termination shock).Concentrating on aircraft-delivered Stratospheric Aerosol Injection (SAI), we appraise threats to SRMattacks are more disruptive, but unlikely – although superpowers’ symbolic overt attacks may deter SRMA multilateral, consensual SRM approach reduces likely attack triggers.

Keywords: security     geoengineering     solar radiation ma-nagement     SRM    

modified neural learning algorithm for online rotor resistance estimation in vector controlled induction motor

A. CHITRA,S. HIMAVATHI

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 22-30 doi: 10.1007/s11708-014-0339-1

Abstract: Online estimation of rotor resistance is essential for high performance vector controlled drives. In this paper, a novel modified neural algorithm has been identified for the online estimation of rotor resistance. Neural based estimators are now receiving active consideration as they have a number of advantages over conventional techniques. The training algorithm of the neural network determines its learning speed, stability, weight convergence, accuracy of estimation, speed of tracking and ease of implementation. In this paper, the neural estimator has been studied with conventional and proposed learning algorithms. The sensitivity of the rotor resistance change has been tested for a wide range of variation from -50% to+50% on the stability of the drive system with and without estimator. It is quiet appealing to settle with optimal estimation time and error for the viable realization. The study is conducted extensively for estimation and tracking. The proposed learning algorithm is found to exhibit good estimation and tracking capabilities. Besides, it reduces computational complexity and, hence, more feasible for practical digital implementation.

Keywords: neural networks     back propagation (BP)     rotor resistance estimators     vector control     induction motor    

Review of human–robot coordination control for rehabilitation based on motor function evaluation

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0684-4

Abstract: As a wearable and intelligent system, a lower limb exoskeleton rehabilitation robot can provide auxiliary rehabilitation training for patients with lower limb walking impairment/loss and address the existing problem of insufficient medical resources. One of the main elements of such a human–robot coupling system is a control system to ensure human–robot coordination. This review aims to summarise the development of human–robot coordination control and the associated research achievements and provide insight into the research challenges in promoting innovative design in such control systems. The patients’ functional disorders and clinical rehabilitation needs regarding lower limbs are analysed in detail, forming the basis for the human–robot coordination of lower limb rehabilitation robots. Then, human–robot coordination is discussed in terms of three aspects: modelling, perception and control. Based on the reviewed research, the demand for robotic rehabilitation, modelling for human–robot coupling systems with new structures and assessment methods with different etiologies based on multi-mode sensors are discussed in detail, suggesting development directions of human–robot coordination and providing a reference for relevant research.

Keywords: human–robot coupling     lower limb rehabilitation     exoskeleton robot     motor assessment     dynamical model    

Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 472-485 doi: 10.1007/s11708-015-0373-7

Abstract: It is well recognized that the voltage stability of a power system is affected by the load model and hence, to effectively analyze the reactive power compensation of an isolated hybrid wind-diesel based power system, the loads need to be considered along with the generators in a transient analysis. This paper gives a detailed mathematical modeling to compute the reactive power response with small voltage perturbation for composite load. The composite load is a combination of the static and dynamic load model. To develop this composite load model, the exponential load is used as a static load model and induction motors (IMs) are used as a dynamic load model. To analyze the dynamics of IM load, the fifth, third and first order model of IM are formulated and compared using differential equations solver in Matlab coding. Since the decentralized areas have many small consumers which may consist large numbers of IMs of small rating, it is not realistic to model either a single large rating unit or all small rating IMs together that are placed in the system. In place of using a single large rating IM, a group of motors are considered and then the aggregate model of IM is developed using the law of energy conservation. This aggregate model is used as a dynamic load model. For different simulation studies, especially in the area of voltage stability with reactive power compensation of an isolated hybrid power system, the transfer function of the composite load is required. The transfer function of the composite load is derived in this paper by successive derivation for the exponential model of static load and for the fifth and third order IM dynamic load model using state space model.

Keywords: isolated hybrid power system (IHPS)     composite load model     static load     dynamic load     induction motor load    

Ultrasonic Motor Techniques for 21st Century

Zhao Chunsheng

Strategic Study of CAE 2002, Volume 4, Issue 2,   Pages 86-91

Abstract:

Firstly, a review of the development and applications of the ultrasonic motor techniques since theFinally, the trend of the development of the motor in the 21st century is pointed out.

Keywords: ultrasonic motor     piezoelectric ceramics     friction materials    

Robust switched fractional controller for performance improvement of single phase active power filter

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 203-212 doi: 10.1007/s11708-015-0381-7

Abstract: The proposed switched fractional controller (SFC) consists of a conventional PI controller, a fractional

Keywords: conventional PI controller     fractional calculus (FC)     total harmonic distortion (THD)     Oustaloup continuous approximation (OCA)     single phase active power filter (SPAPF)    

Research on the control systems of a precision linear motor drive device

YAN Han, WANG Xian-kui, DUAN Guang-hong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 260-264 doi: 10.1007/s11465-006-0036-9

Abstract: The model of a precision linear motor drive device (PLMDD) and its control requirements are analyzed.

Keywords: feedforward     tracking     ±5     anti-disturbance performance     algorithm    

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

Moulay Rachid DOUIRI, Mohamed CHERKAOUI

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

Abstract: paper, three intelligent approaches were proposed, applied to direct torque control (DTC) of induction motor

Keywords: inference system (ANFIS)     artificial neural network     direct torque control (DTC)     fuzzy logic     induction motor    

Power control of dual-motor electric drive for tracked vehicles

Yuan ZOU, Chengning ZHANG, Fengchun SUN, Jingbo WU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 67-72 doi: 10.1007/s11465-009-0059-0

Abstract: The fundamental problem of the power control for the driving of a dual-motor drive electric tracked vehiclePower control schemes of the dual-motor drive system is put forward, designed, and analyzed, including

Keywords: control     electric drive     tracked vehicle    

Title Author Date Type Operation

Electromagnetic modeling and control of switched reluctance motor using finite elements

Ali ARIF,Abderrazak GUETTAF,Ahmed Chaouki MEGHERBI,Said BENRAMACHE,Fateh BENC HABANE

Journal Article

Performance prediction of switched reluctance generator with time average and small signal models

Jyoti KOUJALAGI, B. UMAMAHESWARI, R. ARUMUGAM

Journal Article

Digital switched hydraulics

Min PAN, Andrew PLUMMER

Journal Article

Distributed governance of Solar Radiation Management geoengineering: A possible solution to SRM’s “free-driver

Andrew LOCKLEY

Journal Article

Linear ultrasonic motor using quadrate plate transducer

Jiamei JIN, Chunsheng ZHAO

Journal Article

Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Journal Article

Security of solar radiation management geoengineering

Andrew LOCKLEY

Journal Article

modified neural learning algorithm for online rotor resistance estimation in vector controlled induction motor

A. CHITRA,S. HIMAVATHI

Journal Article

Review of human–robot coordination control for rehabilitation based on motor function evaluation

Journal Article

Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Journal Article

Ultrasonic Motor Techniques for 21st Century

Zhao Chunsheng

Journal Article

Robust switched fractional controller for performance improvement of single phase active power filter

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Journal Article

Research on the control systems of a precision linear motor drive device

YAN Han, WANG Xian-kui, DUAN Guang-hong

Journal Article

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

Moulay Rachid DOUIRI, Mohamed CHERKAOUI

Journal Article

Power control of dual-motor electric drive for tracked vehicles

Yuan ZOU, Chengning ZHANG, Fengchun SUN, Jingbo WU,

Journal Article