Mostrando recursos 1 - 20 de 1.599

  1. High Frequency Impedance Model of Electric Vehicle Traction Battery

    Zongyu An; I Wang; Yongming Yang
    Abstract. The application of the high-voltage supply system and the motor drive system in electric and hybrid-electric vehicles can leads to a significant increase in electromagnetic compatibility. The influence of traction batteries as part of the electromagnetic interference path must be considered. In this paper models of single cell, cells connected in series and cells connected in parallel are developed based on the measured impedance curve of single cell, the models are formulized in the frequency domain and verified by impedance measurement on Ni-MH batteries, the results allow the simulation of batteries as interference path and the prediction of external...

  2. Synthesis and CAD

    Mirosław Dąbrowski; Andrzej Rudeński; Zakład Maszyn Elektrycznych; Instytut Elektrotechniki
    Abstract: The paper presents an algorithm and software for the optimal design of per-manent magnet brushless DC motors. Such motors are powered by DC voltage sources via semiconductor switches connected to the motor phase belts. The software is adjusted to the design of motors with NdFeB high energy density magnets. An attention has been given to issues important in the design of the motors, i.e., permanent magnet selection, structure of magnetic circuit, and armature windings. Particularly, precision of calcula-tion of the permanent magnet operating point, visualization of selection process of the winding belts, and magnetic circuit dimensioning have been investigated....

  3. Motor Control of a Parallel Hybrid Electric Vehicle during Mode Change without an Integrated Starter Generator


    Abstract – In this paper, a motor control algorithm for performing a mode change without an integrated starter generator (ISG) is suggested for the automatic transmission-based hybrid electric vehicle (HEV). Dynamic models of the HEV powertrains such as engine, motor, and mode clutch are derived for the transient state during the mode change, and the HEV performance simulator is developed. Using the HEV performance bench tester, the characteristics of the mode clutch torque are measured and the motor torque required for the mode clutch synchronization is determined. Based on the dynamic models and the mode clutch torque, a motor torque...

  4. Pomiary Automatyka Robotyka nr 2/2013 497 Nacelle Actuation System with Linear Electric Motor

    Krzysztof Falkowski; Maciej Henzel
    Abstract: This paper presents the results of research work on the construction of nacelle actuator with linear tubular electrical motor. The laboratory model was designed at the Military University of Technology. It was verified by finite element method. The test provided information for dynamic simulation and it can be used to verification of linear tubular motor construction.

  5. CONJUNCTIVE IRRIGATION IN PAKISTAN

    Syed Iftikhar; Hussain Shah; Kazmi; Maurits Ertsen
    A survey of tube wells was carried out in a surface hydrological unit (distributary canal command area) in Rechna Doab of the Punjab, Pakistan and results were compared with a tube well census conducted in the same area 20 years ago to update knowledge of the groundwater abstraction structures and find the changes occurring over two decades. Three water courses, located at the head, middle and tail regions of a distributary, were selected to carry out a survey of tube wells including information about ownership of each well, its installation year, bore depth, suction depth, power source, inner diameter of...

  6. Effectiveness of the Adaptive PID Controller for Traction Motor in Hybrid Electric Vehicles

    Mohd Sabirin Rahmat; Fauzi Ahmad; Ahmad Kamal; Mat Yamin; Noreffendy Tamaldin; Vimal Rau Aparow
    Abstract. This paper presents a detailed derivation of permanent magnet synchronous motor (PMSM), which can be used as the prime mover for simulation of hybrid electric vehicles (HEV). A torque tracking control for the motor is developed based on the adaptive proportional-integral-derivative (APID) controller.The effectiveness of the controller has been mathematically compared with the proportional-integral-derivative (PID) controller using various input functions such as step, saw tooth, sine wave and square wave. The results show that the APID-based control is effective in tracking the desired torque with good response and is able to adapt with the desired input as compared to...

  7. Four-quadrant zero-currenttransition converter-fed DC motor drives for electric propulsion

    T. W. Ching
    In this paper, a new four-quadrant (4Q) soft-switching converter for dc motor drives, namely the 4Q zero-current-transition (4Q-ZCT) converter, with the capabilities of 4Q power flow, and ZCT switching profile for dc motor drives is proposed. It has some definite advantages over their hard-switching counterparts and other soft-switch-ing converters. Both the turn-on and turn-off losses of main switches are significantly reduced, while the auxiliary switches can always operate with zero-current-switching (ZCS). It possesses the advantages of reduced switching stresses, minimum voltage and current stresses as well as minimum circulating energy during both the motoring and regenerating modes. It also offers...

  8. MPC5602P-Based Hardware Circuit Design for Electric Power Steering System

    Qinghe Liu A; Qingyang Xu B; Weiguang Kong C; Shouzhi Liu D
    Abstract. This paper analyzes the design requirements of high-performance EPS controller, on the basis of which, we select Freescale Power Architecture ECU MPC5602P special for EPS. By the means of Modular Design, we propose a new design for EPS controller hardware, which focuses on MPC5602P minimum system, power supply module, three-phase induction motor inverter module and sensor signal conditioning module. Meanwhile, we completed EPS controller program design process in the light of the induction motor vector control theory. Finally, our controller realized the control functions of the electric power steering motor after it was debugged. 1.

  9. Energy Recuperation in Automotive Active Suspension Systems with Linear Electric Motor

    Antonin Stribrsky; Katerina Hyniova; Jaroslav Honcu; Ales Kruczek
    Abstract—In the paper, energy recuperation and management in automotive suspension systems with linear electric motors controlled using a proposed H ∞ controller to obtain a variable mechanical force for a car damper is presented. Vehicle suspensions in which forces are generated in response to feedback signals by active elements obviously offer increased design flexibility compared to the conventional suspensions using passive elements such as springs and dampers. The main advantage of the proposed solution using a linear AC motor is the possibility to generate desired forces acting between the unsprung and sprung masses of the car, providing good insulation of...

  10. The Winding Insulation Electro-Thermal Aging Model of Electric Vehicle Motor Based on Operation States

    Zhu Xianhui; Cui Shumei; Tian Dewen
    Abstract. Electric vehicle(EV) motor and common traction motor are operation in different states, the insulation aging model based fixed working conditions are no longer applicable. The secondary development of motor system is carried in ADVISOR to get a new motor thermal model with which to analysis the lifetime of winding insulation. In addition, SIMULINK model is established to decouple motor currents in ADVISOR. ANSYS is carried to simulate the motor temperature rise using the obtained decouple currents, two results of models are in good agreement which verifies the validity of the redevelopment thermal model. Combined with the electric ageing model...

  11. IN A SPORTS HALL WITH SWIMMING POOL Summary

    Infrastruktura I Ekologia; Terenów Wiejskich; Komisja Technicznej; Infrastruktury Wsi; Pavel Neuberger; Vladimír Šleger; Martin Polák; Pavel Neuberger; Vladimír Šleger; Martin Polák
    This paper deals with the determination of several efficiency types of a cross-current recovery exchanger which is a part of the air venting system in the swimming pool hall on the premises of the Czech University of Life Sciences (CULS) in Prague. The product is a cross-current plate exchanger with a heat-exchanging surface of antirust aluminium. According to the manufacturer, the exchanger is fit for temperatures common in air ventilation systems. The air is forced in by fans at a flow quantity of 16,000 m3, maximum speed 2000 rpm, electric motor output 7.5 kW, filters for the air coming from...

  12. Using Motorettes for the Experimental and Numerical Determinations of the PDIV in an Electric Motor

    Rain, Pascal; Loubeau, Florian; Durieux, Anne; Le Strat, Florence; Fresnet, François
    International audience

  13. Understanding the Thermal Degradation of 3-layer Insulating Papers for Electric Motor

    Rain, Pascal; Loubeau, Florian; Durieux, Anne; Poitrinet, Jean-Luc; Le Strat, Florence; Fresnet, François
    International audience

  14. 5. FUNDING NUMBERS

    Dr. Ronald; J. Pogorzelski; Dr. Vaughn; P. Cable
    The views, opinions and/or findings contained in this repor\are^ose of the author(s) and should not be construed as an official Department of the Army position, policy or decision, unless so de " ' (ited by other documentation. 12 a. DISTRIBUTION / AVAILABILITY STATEMENT Approved for public release; distribution unlimited. 12 b. DISTRIBUTION CODE 13. ABSTRACT (Maximum 200 words) This effort was directed toward demonstration of the efficacy of a concept for mitigation of the rotor blade modulation problem in helicoptor communications. An antenna is envisioned with radiating elements mounted on the rotor and rotating with it. The rf signals are...

  15. Research and Application of Vibratory Stress Relief (I)- Research on Vibratory Stress Relief (VSR) Supervisory System

    Yang Chenghui
    Abstract. The VSR supervisory control software is developed by Visual Basic6.0 programming, and the process having explained each systematic functions module realization detailedly. First, the device principle of vibration stress relief system, the fundamental procedure and the fundamental parameter index of system designs have been introduced. And then, the supervisory control vibration stress relief device was developed, which has the intellectualized function. Monitor supporting device software are able to control the electric motor accurately, and real time acquisition value and frequency are carried out to the result analysis. Exploitation software can draw the penetrating vibration artwork clearly, which have improved...

  16. Advantages of Slewing an Active Structure

    Ephrahim Garcia; Daniel; J. Inman
    ABSTRACT: The slewing control of an active flexible structure is considered by examin-ing the equations of motion of an integrated actuator/structure system containing both the actuator and structure dynamics. These equations are derived using a Hamiltonian ap-proach. The system under consideration is a slewing flexible structure, a thin aluminum beam, torque driven by an armature controlled DC electric motor and actuated by a piece-wise distributed piezoceramic actuator. An improvement in performance is gained by 1) including the effects of motor actuator and beam dynamic interaction and 2) using a piezo-electric device, layered on the structure, for direct vibration suppression of...

  17. Condition Monitoring and Diagnosis of Faults in the Electric Induction Motor

    A. Medoued; A. Metatla; A. Boukadoum; T. Bahi; I. Hadjadj
    Abstract: Problem statement: The diagnosis of failures in the induction machine, when it is implemented effectively and whether it allows detecting early deterioration of the system, represents a means to help achieve better productivity. Approach: Primary purpose was to detect and locate a possible malfunction of equipments. In this study we developed a method using the three phase-biphase transformation (shape recognition), based on a two-dimensional representation of the three-phase components of the stator current and rotor flux. This approach was a static approach, considering the necessity to make several recordings of signals. Results: In this study we considered defect type...

  18. Paper 6 DESIGN OF AN ARTIFICIAL ELBOW: AN ELECTROMECHANICAL SOLUTION

    S. M. Livingstone; D. I. Crecraftt
    This paper presents an outline of the power and energy requirements of a human elbow and gives a discussion on the means by which these requirements can be met. Reasons are given for the choice of a system using bat-teries for energy storage and direct electric drive by a motor and gearbox. The gearbox is of an unusual type, using ‘harmonic drive ’ elements, which permit the motor to be installed transversally at the elbow. The gear reduction unit is described in detail. The paper also discusses the problems inherent in controlling a motor with large stall current in such...

  19. A MATLAB-based graphical technique for amortization study of adjustable speed drives

    Jimmie J. Cathey; Senior Member
    Abstract—Economic justification of electric drives is the primary reason for many applications. However, the cumbersome trial-and-error calculations necessary to present this aspect often leads to omission of the topic in electric drives courses. This paper presents a MATLAB-based program that generates plots of input power and shaft torque for variable-frequency operation of three-phase induction motors. Based on these graphs, an example is presented illustrating how a cost amortization study for an adjustable speed drive application can be presented with minimal effort and lecture time. Index Terms—Electric drives, motor-drive cost study, variable-frequency induction motors. I.

  20. One Electric motor System for Steering Hydraulic Pump and Braking Air Pump in HEV BuS

    Renguang Wang A; Guangkui Shi B; Hongtao Chen C; Lintao Zhangd; Chao Yu E
    Abstract. The pure electric vehicles and hybrid electric vehicles are being developed and used wildly to save energy and reduce air pollution. In pure electric vehicles and hybrid electric vehicles, most of the steering hydraulic pump and braking sir pump have one electric motor to drive its pump. A new system with one electric motor for these two bumps was developed for application in pure electric vehicles(EVs ) and hybrid electric vehicle ( HEVs). Comparison with conventional configuration, this new method can reduce cost and mounting space with compact size and higher energy efficiency. And the test results show that...

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