EPE Association: EPE-PEMC 2004 - Topic 05-7: Modelling and simulation

EPE-PEMC 2004 - Topic 05-7: Modelling and simulation
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 05: ELECTRICAL MACHINES AND ACTUATORS > EPE-PEMC 2004 - Topic 05-7: Modelling and simulation

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   A Novel Induction Machine Vector Control Scheme With Parameter Estimation And Over-Current Protection
By Mario J. Duran, Jose L. Duran, Jose R. Saenz [View]
[Download]

Abstract: The improvements in the schemes for sensorless vector control has been a challenge for researchers and several approaches have been considered. Two big trends can be considered: field oriented control (FOC) and direct torque control (DTC), with inherent advantages and disadvantages. Among the former trend, indirect rotor type (IRFOC) is one of the most popular techniques, whose main weaknesses are the low speed performance and the parameter dependence. In the present work, a novel scheme for the control is presented that considers static friction and takes into account parameter detuning due to motor heating and skin effect (deep/bar effect). An over-current protection is also considered using a nonconservative criterion that allows transient currents above the rated value.

   A Simple PSpice Implementation Of A Squirrel Cage Induction Motor Drive
By Wissam Jamal, Petar Igic, Guy Williams, Philip Mawby [View]
[Download]

Abstract: This paper presents a modular SPICE implantation of a squirrel cage induction motor drive. A simple modelling approach for motor model is proposed with the aid of the Analogue Behavioural Models (ABM) library provided in OrCad-PSPICE. This expands the distinguished ability of SPICE simulation to not only simulate discrete device electronic circuits very accurately but also to simulate transient models for electrical machines. The motor model developed in this paper is based on the state-space equations derived in the synchronous reference frame. An application example of a direct start-up of an induction motor drive is presented. The transient characteristics of some of the motor variables are presented and compared with those obtained in MATLAB/SIMULINK.

   Control And Simulation Of Bearingless Induction Motor
By Juraj Wagner, Jan Sitar, Peter Uhlik, Dusan Maga, Rene Hartansky [View]
[Download]

Abstract: The paper deals with the field oriented control of the bearingless induction machine. Simulations were done with parameters of designed machine based on classical induction motor with mechanical bearings. Designed machine has fourpole drive winding and additional winding to centre the rotor in the machine. Both windings are distributed in stator slots.

   Fabrication Technology And Modeling Of Electrostatically Actuated Microswitch
By Vytautas Ostasevicius, Rolanas Dauksevicius, Sigitas Tamulevicius, Algimantas Bubulis [View]
[Download]

Abstract: The paper describes surface-micromachined electrostatically actuated microswitch and its fabrication technology, which was developed for the first time in Lithuania, in Kaunas University of Technology. The dimensions of the smallest microdevice are 67 ×30 ×3.2 µm. Mathematical model of the microswitch is considered, which takes into account electrostatic actuation, squeeze-film damping and impact interactions between contacting element and substrate that greatly influence switching speed, reliability and durability of the switch.

   Induction Machines With Rotor Asymmetries: Modelling And Simulations
By C. C. M. Cunha, R. O. C. Lyra, B. J. Cardoso Filho [View]
[Download]

Abstract: The need for detection of rotor faults at an earlier stage, so that maintenance can be planned ahead, has pushed the development of monitoring methods with increasing sensitivity and noise immunity. An important issue in such effort is the modelling of the induction machine including rotor bar and end-ring faults, with a minimum of computational complexity. In this paper, a new and simpler method is employed in the simulation and analysis of an induction motor with rotor asymmetries. Simulation, Finite Element Analysis and experimental results are presented to support the proposed approach.

   Mathematical Model Of Non-Stationary Braking Processes Of Electromechanical Power Converters
By Olga Daruliene, Bronius Karaliunas [View]
[Download]

Abstract: This paper presents a survey of specific power converters in the context of the existing electrical machines. All methods of an electromechanical power converter (EMC) braking are based on using generator driven by the energy of a magnetic field under specific conditions. For non-stationary braking transitional processes and dynamic characteristics of converters are typical. The studies mainly refer to stationary braking, considering that the speed of the rotor . const v = Non-stationary processes are accompanied by transitional processes when converters acquire the dynamic characteristics. Their analysis and the development of new methods and models of description are an acute research and technical problem. One of the major objectives of the present investigation is developing a generalising mathematical model of braking processes, finding major equations and relationships, calculating the magnetic fields and determining spectral characteristics of converters.

   Mechatronic System Modelling By Hybrid Analytical And Finite-Element-Method
By Rene Sallier, Steven Liu, Kai Lehmann, Bernd Reimann [View]
[Download]

Abstract: The paper presents the modelling of two shortstroke permanent magnet linear actuators for control studies. It is shown how the electrical, the magnetic and the mechanical circuits of the actuators are identified and modelled analytically. Finite-element analysis is then used to determine the non-linear parameters of the model. The derived models are implemented for dynamic simulations using Matlab/Simulink and calculation results are compared with those of Finite-Element-Analysis.

   Parameter Estimation Of Induction Motors By A Hybrid Method And Effect Of Aging On Motor Parameters
By Babak Enayati, Behzad Mirzaeian, Mehdi Moallem, Masood Heirani [View]
[Download]

Abstract: The aim of this paper is the application of a new hybrid method for identification of the induction machine parameters. Simulation and experimental results shows accurate performance of the method. The advantages of the hybrid method are its fast convergence, good accuracy in finding roots of functions and estimating five machine parameters at the same time. The measured variables are the stator currents, voltages and rotor angular speed, while the predicted parameters are stator resistance, stator inductance, magnetizing inductance, rotor resistance and rotor inductance. The method can also be used for estimation of aged motor parameters.

   Performance Comparison Of Modern Control Techniques Used In Induction Motor Vector Drives
By W. Jamal, M. S. Khanniche, P. A. Mawby [View]
[Download]

Abstract: A quick response Induction Motor (IM) drive, insensitive to parameter and operating condition changes can be achieved using modern control techniques such as Fuzzy Logic and Sliding Mode Control (SLMC). This paper presents performance comparison of Sliding Mode Control, Combined Fuzzy-Sliding Mode Control, and Conventional Fuzzy Logic Control when they are applied to the outer-loop speed regulator of IM vector drive. The control dynamics for speed response and impact load disturbances are investigated. The results demonstrated the superiority of the conventional Fuzzy Logic Control over the other two controllers

   Reccurence Relations In Saturated A. C. Machines Modeling
By Aurel Campeanu, S. Ivanov [View]
[Download]

Abstract: The paper deals with a series of recurrence relations that are established, in order to obtain the mathematical models of the saturated a.c. machines. It is shown that various sets of state variables have a common theoretical background that simplifies the deduction of the saturated models.

   Study Of Inter-Turn Short Circuits In The Stator Windings Of Induction Machines Including Saturation Effect
By G. Houdouin, G. Barakat, B. Dakyo [View]
[Download]

Abstract: This paper deals with an improved model enabling accurate simulation of inter-turn short circuits in the stator windings of induction machines. This model is based on the coupled magnetic circuits theory. The system of differential equations describing the induction machine behavior in presence of inter-turn short circuits in the stator windings is given. The machine inductances expressions are carried out using the airgap magnetic energy which is determined by means of the winding functions method. In addition, the magnetic circuit saturation is taken into account by including the fundamental saturation harmonic in the inductances calculation. The proposed model allows the authors to study precisely the inter-turn short circuits signature. Finally, the simulation results of the proposed model are validated by means of a 4 kW specially rewound induction motor which is loaded by a DC generator.

   The Multimachine Systems Dynamic Researchs Technique A By A Method Of Mathematical Simulation
By S. Zimina, E. Ketnere, K. Ketner, J. Dirba [View]
[Download]

Abstract: In work the problems mathematical, numerical modeling of physical processes of systems are stated by example of electromechanical processes in autonomous electrical power systems, arbitrary radial structure. For giving model of a system of required flexibility the principle of structural simulation will widely be utilized. The mathematical models of synchronous, asynchronous machines grounded on full equations such as a Park - Goreva.

EPE-PEMC 2004 - Topic 05-7: Modelling and simulation
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 05: ELECTRICAL MACHINES AND ACTUATORS > EPE-PEMC 2004 - Topic 05-7: Modelling and simulation
	[return to parent folder]

	A Novel Induction Machine Vector Control Scheme With Parameter Estimation And Over-Current Protection By Mario J. Duran, Jose L. Duran, Jose R. Saenz	[View] [Download]
Abstract: The improvements in the schemes for sensorless vector control has been a challenge for researchers and several approaches have been considered. Two big trends can be considered: field oriented control (FOC) and direct torque control (DTC), with inherent advantages and disadvantages. Among the former trend, indirect rotor type (IRFOC) is one of the most popular techniques, whose main weaknesses are the low speed performance and the parameter dependence. In the present work, a novel scheme for the control is presented that considers static friction and takes into account parameter detuning due to motor heating and skin effect (deep/bar effect). An over-current protection is also considered using a nonconservative criterion that allows transient currents above the rated value.

	A Simple PSpice Implementation Of A Squirrel Cage Induction Motor Drive By Wissam Jamal, Petar Igic, Guy Williams, Philip Mawby	[View] [Download]
Abstract: This paper presents a modular SPICE implantation of a squirrel cage induction motor drive. A simple modelling approach for motor model is proposed with the aid of the Analogue Behavioural Models (ABM) library provided in OrCad-PSPICE. This expands the distinguished ability of SPICE simulation to not only simulate discrete device electronic circuits very accurately but also to simulate transient models for electrical machines. The motor model developed in this paper is based on the state-space equations derived in the synchronous reference frame. An application example of a direct start-up of an induction motor drive is presented. The transient characteristics of some of the motor variables are presented and compared with those obtained in MATLAB/SIMULINK.

	Control And Simulation Of Bearingless Induction Motor By Juraj Wagner, Jan Sitar, Peter Uhlik, Dusan Maga, Rene Hartansky	[View] [Download]
Abstract: The paper deals with the field oriented control of the bearingless induction machine. Simulations were done with parameters of designed machine based on classical induction motor with mechanical bearings. Designed machine has fourpole drive winding and additional winding to centre the rotor in the machine. Both windings are distributed in stator slots.

	Fabrication Technology And Modeling Of Electrostatically Actuated Microswitch By Vytautas Ostasevicius, Rolanas Dauksevicius, Sigitas Tamulevicius, Algimantas Bubulis	[View] [Download]
Abstract: The paper describes surface-micromachined electrostatically actuated microswitch and its fabrication technology, which was developed for the first time in Lithuania, in Kaunas University of Technology. The dimensions of the smallest microdevice are 67 ×30 ×3.2 µm. Mathematical model of the microswitch is considered, which takes into account electrostatic actuation, squeeze-film damping and impact interactions between contacting element and substrate that greatly influence switching speed, reliability and durability of the switch.

	Induction Machines With Rotor Asymmetries: Modelling And Simulations By C. C. M. Cunha, R. O. C. Lyra, B. J. Cardoso Filho	[View] [Download]
Abstract: The need for detection of rotor faults at an earlier stage, so that maintenance can be planned ahead, has pushed the development of monitoring methods with increasing sensitivity and noise immunity. An important issue in such effort is the modelling of the induction machine including rotor bar and end-ring faults, with a minimum of computational complexity. In this paper, a new and simpler method is employed in the simulation and analysis of an induction motor with rotor asymmetries. Simulation, Finite Element Analysis and experimental results are presented to support the proposed approach.

	Mathematical Model Of Non-Stationary Braking Processes Of Electromechanical Power Converters By Olga Daruliene, Bronius Karaliunas	[View] [Download]
Abstract: This paper presents a survey of specific power converters in the context of the existing electrical machines. All methods of an electromechanical power converter (EMC) braking are based on using generator driven by the energy of a magnetic field under specific conditions. For non-stationary braking transitional processes and dynamic characteristics of converters are typical. The studies mainly refer to stationary braking, considering that the speed of the rotor . const v = Non-stationary processes are accompanied by transitional processes when converters acquire the dynamic characteristics. Their analysis and the development of new methods and models of description are an acute research and technical problem. One of the major objectives of the present investigation is developing a generalising mathematical model of braking processes, finding major equations and relationships, calculating the magnetic fields and determining spectral characteristics of converters.

	Mechatronic System Modelling By Hybrid Analytical And Finite-Element-Method By Rene Sallier, Steven Liu, Kai Lehmann, Bernd Reimann	[View] [Download]
Abstract: The paper presents the modelling of two shortstroke permanent magnet linear actuators for control studies. It is shown how the electrical, the magnetic and the mechanical circuits of the actuators are identified and modelled analytically. Finite-element analysis is then used to determine the non-linear parameters of the model. The derived models are implemented for dynamic simulations using Matlab/Simulink and calculation results are compared with those of Finite-Element-Analysis.

	Parameter Estimation Of Induction Motors By A Hybrid Method And Effect Of Aging On Motor Parameters By Babak Enayati, Behzad Mirzaeian, Mehdi Moallem, Masood Heirani	[View] [Download]
Abstract: The aim of this paper is the application of a new hybrid method for identification of the induction machine parameters. Simulation and experimental results shows accurate performance of the method. The advantages of the hybrid method are its fast convergence, good accuracy in finding roots of functions and estimating five machine parameters at the same time. The measured variables are the stator currents, voltages and rotor angular speed, while the predicted parameters are stator resistance, stator inductance, magnetizing inductance, rotor resistance and rotor inductance. The method can also be used for estimation of aged motor parameters.

	Performance Comparison Of Modern Control Techniques Used In Induction Motor Vector Drives By W. Jamal, M. S. Khanniche, P. A. Mawby	[View] [Download]
Abstract: A quick response Induction Motor (IM) drive, insensitive to parameter and operating condition changes can be achieved using modern control techniques such as Fuzzy Logic and Sliding Mode Control (SLMC). This paper presents performance comparison of Sliding Mode Control, Combined Fuzzy-Sliding Mode Control, and Conventional Fuzzy Logic Control when they are applied to the outer-loop speed regulator of IM vector drive. The control dynamics for speed response and impact load disturbances are investigated. The results demonstrated the superiority of the conventional Fuzzy Logic Control over the other two controllers

	Reccurence Relations In Saturated A. C. Machines Modeling By Aurel Campeanu, S. Ivanov	[View] [Download]
Abstract: The paper deals with a series of recurrence relations that are established, in order to obtain the mathematical models of the saturated a.c. machines. It is shown that various sets of state variables have a common theoretical background that simplifies the deduction of the saturated models.

	Study Of Inter-Turn Short Circuits In The Stator Windings Of Induction Machines Including Saturation Effect By G. Houdouin, G. Barakat, B. Dakyo	[View] [Download]
Abstract: This paper deals with an improved model enabling accurate simulation of inter-turn short circuits in the stator windings of induction machines. This model is based on the coupled magnetic circuits theory. The system of differential equations describing the induction machine behavior in presence of inter-turn short circuits in the stator windings is given. The machine inductances expressions are carried out using the airgap magnetic energy which is determined by means of the winding functions method. In addition, the magnetic circuit saturation is taken into account by including the fundamental saturation harmonic in the inductances calculation. The proposed model allows the authors to study precisely the inter-turn short circuits signature. Finally, the simulation results of the proposed model are validated by means of a 4 kW specially rewound induction motor which is loaded by a DC generator.

	The Multimachine Systems Dynamic Researchs Technique A By A Method Of Mathematical Simulation By S. Zimina, E. Ketnere, K. Ketner, J. Dirba	[View] [Download]
Abstract: In work the problems mathematical, numerical modeling of physical processes of systems are stated by example of electromechanical processes in autonomous electrical power systems, arbitrary radial structure. For giving model of a system of required flexibility the principle of structural simulation will widely be utilized. The mathematical models of synchronous, asynchronous machines grounded on full equations such as a Park - Goreva.