The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

N. S. Dinesh - One of the best experts on this subject based on the ideXlab platform.

  • Micro stepping of Shape Memory Alloy based Poly Phase Motor
    2008 IEEE International Conference on Industrial Technology, 2008
    Co-Authors: S.v. Sharma, M.m. Nayak, N. S. Dinesh, Loganathan Umanand
    Abstract:

    In literature we find broadly two types of shape memory alloy based Motors namely limited rotation Motor and unlimited rotation Motor. The unlimited rotation type SMA based Motor reported in literature uses SMA springs for actuation. An attempt has been made in this paper to develop an unlimited rotation type balanced poly Phase Motor based on SMA wire in series with a spring in each Phase. By isolating SMA actuation and spring action we are able achieve a constant force by the SMA wire through out its range of operation. The Poly Phase Motor can be used in stepping mode for generating incremental motion and servo mode for generating continuous motion. A method of achieving servo motion by micro stepping is presented. Micro stepping consists of controlling single-Phase temperature with a position feedback. The Motor has been modeled with a new approach to the SMA wire Hysterysis model. Motor is simulated for different responses and the results are compared with the experimental data.

  • Modelling, design and characterization of Shape Memory Alloy-based Poly Phase Motor
    Sensors and Actuators A: Physical, 2008
    Co-Authors: S.v. Sharma, M.m. Nayak, N. S. Dinesh
    Abstract:

    Abstract Design and characterization of SMA wire-based Poly Phase rotary Motor has not been reported in literatures. The Motor presented in this paper can be used either in stepping mode or in servo mode of operation. A method of designing a balanced Poly Phase Motor based on SMA wire is proposed in this paper. The Motor uses SMA wire with a tension spring in series for each Phase of the Motor. The principle of operation of the Poly Phase Motor is presented. The proposed Motor has been characterized similar to a stepper Motor. Various parameters of the Motor have been defined. The Motor can be actuated in either direction with different Phase sequencing methods, which are presented in this work. The Motor is modelled and simulated and the results of simulations and experiments are presented. Based on this principle a compact actuator can be realized. Generalization of the concept is done and Motor up to 16 Phases are studied and the simulation results are discussed.

A M N Lima - One of the best experts on this subject based on the ideXlab platform.

  • vector control strategies for single Phase induction Motor drive systems
    IEEE Transactions on Industrial Electronics, 2004
    Co-Authors: M B De Rossiter Correa, C B Jacobina, E R C Da Silva, A M N Lima
    Abstract:

    This paper discusses vector control strategies for single-Phase Motor drive systems operating with two windings. A model is proposed and used to derive control laws for single-Phase Motor drive systems. Such model is also employed to introduce the double-sequence controller. Simulation and experimental results are provided to illustrate the operation of the proposed drive systems.

S.v. Sharma - One of the best experts on this subject based on the ideXlab platform.

  • Micro stepping of Shape Memory Alloy based Poly Phase Motor
    2008 IEEE International Conference on Industrial Technology, 2008
    Co-Authors: S.v. Sharma, M.m. Nayak, N. S. Dinesh, Loganathan Umanand
    Abstract:

    In literature we find broadly two types of shape memory alloy based Motors namely limited rotation Motor and unlimited rotation Motor. The unlimited rotation type SMA based Motor reported in literature uses SMA springs for actuation. An attempt has been made in this paper to develop an unlimited rotation type balanced poly Phase Motor based on SMA wire in series with a spring in each Phase. By isolating SMA actuation and spring action we are able achieve a constant force by the SMA wire through out its range of operation. The Poly Phase Motor can be used in stepping mode for generating incremental motion and servo mode for generating continuous motion. A method of achieving servo motion by micro stepping is presented. Micro stepping consists of controlling single-Phase temperature with a position feedback. The Motor has been modeled with a new approach to the SMA wire Hysterysis model. Motor is simulated for different responses and the results are compared with the experimental data.

  • Modelling, design and characterization of Shape Memory Alloy-based Poly Phase Motor
    Sensors and Actuators A: Physical, 2008
    Co-Authors: S.v. Sharma, M.m. Nayak, N. S. Dinesh
    Abstract:

    Abstract Design and characterization of SMA wire-based Poly Phase rotary Motor has not been reported in literatures. The Motor presented in this paper can be used either in stepping mode or in servo mode of operation. A method of designing a balanced Poly Phase Motor based on SMA wire is proposed in this paper. The Motor uses SMA wire with a tension spring in series for each Phase of the Motor. The principle of operation of the Poly Phase Motor is presented. The proposed Motor has been characterized similar to a stepper Motor. Various parameters of the Motor have been defined. The Motor can be actuated in either direction with different Phase sequencing methods, which are presented in this work. The Motor is modelled and simulated and the results of simulations and experiments are presented. Based on this principle a compact actuator can be realized. Generalization of the concept is done and Motor up to 16 Phases are studied and the simulation results are discussed.

E. C. Dos Santos - One of the best experts on this subject based on the ideXlab platform.

  • Generalized Topologies of Multiple Single-Phase Motor Drives
    IEEE Transactions on Energy Conversion, 2010
    Co-Authors: E. C. Dos Santos, Cursino B. Jacobina, M. Beltrao De Rossiter Correa, A.c. Oliveira
    Abstract:

    This paper investigates multiple single-Phase converters for multiple single-Phase Motor drives from a dc-link voltage. The dc-link voltage is obtained from primary energy sources such as photovoltaic, battery, utility grid, or by a combination of these. This paper points out the best configuration for different scenarios. The proposed systems allow functions such as soft start, independent adjustment of Motor speeds, or group of Motors operating at different rated frequencies. Furthermore, a control technique has been proposed to maximize the utilization of the dc-link voltage and minimize shared leg currents. Several relevant characteristics of the converters are addressed, such as voltage capability, shared-leg currents, and power ratings. Experimental and simulated results are presented.

  • Two-Phase Motor drive systems with Z-source inverter and hybrid PWM
    2010 IEEE Energy Conversion Congress and Exposition, 2010
    Co-Authors: E. C. Dos Santos, Mario Pacas, Marcelo G. Molina
    Abstract:

    In this paper is proposed a drive system for a symmetrical two-Phase Motor using Z-source inverter. The modulation technique applied to proposed system combines the theory of space-vector PWM with the ease of implementation of a triangular-comparison PWM, including the shoot-through zero vectors inherent of Z-source inverter. Such strategy reduces the effort of algorithm calculation. The introduction of the distribution ratio allows the development of a systematic approach in which both converter efficiency and THD of the Motor voltages are affected by that distribution ratio. Also, the paper proposes a simple software algorithm to generate the hybrid modulation of Z-source inverter with the introduction of the “virtual” dc-link zero point. Simulated and experimental results demonstrate the validity of the proposed system.

Hui Zhong - One of the best experts on this subject based on the ideXlab platform.

  • Fractional order model of three-winding series-connected single-Phase Motor
    2017 20th International Conference on Electrical Machines and Systems (ICEMS), 2017
    Co-Authors: Yingjie Wang, Hui Zhong, Baodong Wang
    Abstract:

    Single-Phase capacitor induction Motors are the most common low cost solutions for household appliance. An alternative high efficiency Motor is the novel three-winding series-connected single-Phase Motor. This paper proposes the simulation and analysis of the fractional order model of the novel Motor with full load and no load. A transfer function with a fractional derivative order has been selected to represent the admittance of the capacitors by the help of modified Oustaloup filtering algorithm. Numerical simulations and experimental results show the performance of the modal approach for modeling.

  • Modeling and simulation of a novel high efficiency single-Phase Motor
    2011 6th IEEE Conference on Industrial Electronics and Applications, 2011
    Co-Authors: Hui Zhong, Xiuhe Wang, Ying Pei
    Abstract:

    Because of the increasing pressure for improved the efficiency single-Phase Motor, a novel single-Phase induction Motor with three winding in series and two capacitors has been provided to be capable of high efficiency demand. This paper introduces the basic structure and operational principle of the new type Motor. A voltage source driving complex finite element model for the novel high efficiency single-Phase induction Motor is presented and the validity of the simulation model is tested and verified through the experiment.

  • analysis and design of a new type high efficiency single Phase induction Motor based on negative sequence magnetic field compensation
    International Conference on Electrical Machines and Systems, 2008
    Co-Authors: Hui Zhong, Xiuhe Wang, Daohan Wang, Dongwei Qiao
    Abstract:

    Because of the negative-sequence magnetic field, the single-Phase induction Motor has higher temperature, lower output torque and lower efficiency comparing with three-Phase induction Motor. Based on negative-sequence magnetic field compensation principle, this paper presents a new type single-Phase Motor with a special stator windings configuration to weaken the negative sequence magnetic field and improve the efficiency and power density of the Motor. By the equivalent current method and the equivalent circuit, the static performance of the new type Motor is studied. With the aid of finite element software JMAG, the comparison between the new type Motor and the ordinary Motor proves that the efficiency and the performance of the single-Phase Motor with the new stator structure can be greatly improved.