Modeling and simulation of DC motors in dynamic conditions allowing for the armature reaction

Lobosco, Orlando Silvio

doi:10.1109/60.815061

Cited by 5 publications

(3 citation statements)

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“…A linear model is usually used [3,4], but this type of model has the problem that the parameters used, such as resistance, inductance, and back electromotive force (back-EMF), change under different operating conditions [5,6]. In this situation, the parameters are adjusted for one specific work condition and they are not modified.…”

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confidence: 99%

A Novel Method for Sensorless Speed Detection of Brushed DC Motors

2016

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Many motor applications require accurate speed measurement. For brushed dc motors, speed can be measured with conventional observers or sensorless observers. Sensorless observers have the advantage of not requiring any external devices to be attached to the motor. Instead, voltage and/or current are measured and used to estimate the speed. The sensorless observers are usually divided into two groups: those based on the dynamic model, and those based on the ripple component. This paper proposes a method that measures the current of brushed dc motors and analyses the position of its spectral components. From these spectral components, the method estimates the motor speed. Three tests, performed each with the speeds ranging from 2000 to 3000 rpm either at constant-speed, at slowly changing speeds, or at rapidly changing speeds, showed that the average error was below 1 rpm and that the deviation error was below 1.5 rpm. The proposed method: (i) is a novel method that is not based on either the dynamic model or on the ripple component; (ii) requires only the measurement of the current for the speed estimation; (iii) can be used for brushed dc (direct current) motors with a large number of coils; and (iv) achieves a low error in the speed estimation.

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confidence: 99%

A Novel Method for Sensorless Speed Detection of Brushed DC Motors

2016

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“…Even though such a model has been extensively used in the literature [11]- [13], another issue was found to be very important for an accurate machine mathematical model: the mutual inductance between phases and the armature reaction [14]. Although such a phenomenon is usually neglected in high-power three-phase machines, considering that thickness of magnets plus air gap is too substantial, that is not actually the case for low-power machines [14], [15] . The stator currents impose a magnetomotive force (MMF) with a spatial triangular distribution while the magnets MMF distribution is essential triangular.…”

Section: Modeling Developmentmentioning

confidence: 99%

A high torque low-speed multi-phase brushless machine a perspective application for electric vehicles

Simões

Vieira²

2000 26th Annual Conference of the IEEE Industrial Electronics Society. IECON 2000. 2000 IEEE International Conference on Indus

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Abstract-This paper presents the design, analysis, simulation, and modeling of a high-torque low-speed multiphase permanentmagnet brushless machine. The machine fits an in-wheel motor arrangement to be used for electric vehicle applications. This paper presents issues regarding the high-level modeling comprised of a transient model in conjunction with their corresponding experimental evaluation. Analysis was made to combine the modeling efforts with the expected behavior concerned with mutual inductance and armature reaction effects, so as to have realistic simulation results verified by the experimental setup. Comprehensive experimental results corroborate the work.

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“…: são construtivamente mais complexas, sofrem elevado desgaste, apresentam altos custos de manutenção, normalmente exigem ventilação forçada no interior Aplicando-se esta teoria, recai-se num sistema de equações diferencias o qual, para ser solucionado, necessita que sejam determinadas constantes associadas à máquina (na realidade, uma matriz de indutâncias) com base nas quais tais equações são expressadas. No entanto, os métodos então propostos[35,36] para o cálculo das indutâncias consistiam em técnicas semi-empíricas, que decerto prejudicavam a qualidade dos modelos[37]. máximo da ordem de 5% entre dados simulados e experimentais.…”

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Modelagem e simulação de uma máquina elétrica de corrente contínua levando-se em consideração os efeitos de reação de armadura.

Melo¹

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Acionamentos elétricos em corrente contínua ainda são largamente empregados em plantas industriais. Os modelos usualmente adotados para os motores envolvem diversas simplificações, desprezando os efeitos da reação de armadura. Neste trabalho, foi realizada uma pesquisa bibliográfica a fim de se encontrar modelos matemáticos que contemplassem os efeitos da reação de armadura em máquinas CC. Devido à escassez de material encontrado, optou-se por desenvolver um modelo próprio com base em dados obtidos experimentalmente em ensaios de laboratório. Tal modelo, o qual foi validado através da comparação com os dados experimentais, visa a contemplação dos principais efeitos da reação de armadura tanto no circuito de campo como também no circuito de armadura.

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Modeling and simulation of DC motors in dynamic conditions allowing for the armature reaction

Cited by 5 publications

References 1 publication

A Novel Method for Sensorless Speed Detection of Brushed DC Motors

A Novel Method for Sensorless Speed Detection of Brushed DC Motors

A high torque low-speed multi-phase brushless machine a perspective application for electric vehicles

Modelagem e simulação de uma máquina elétrica de corrente contínua levando-se em consideração os efeitos de reação de armadura.

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