Linearized Modeling of Switched Reluctance Motor for Closed-Loop Current Control

This study presents a non-linear modelling method for a switched reluctance linear machine (SRLM), which achieves high modelling precision while requiring no prior knowledge regarding the specific structural dimensions of an SRLM. The proposed modelling method provides accurate flux linkage data based on limited experimental measurements through an interpolation process using a variant sigmoid function. The accuracy of the interpolation process is further increased by considering mutual coupling among the three phases. The performance of the proposed method is validated experimentally by comparing it with the performances of the Fourier series method and the two-dimensional finite element method. The results demonstrate that the proposed method achieves greater modelling precision than the other methods considered in modelling an SRLM.

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“…A previously proposed quasi-linear model of magnetisation curves is shown in Fig. 2a [21]. Accordingly, the flux linkage is expressed as follows:…”

Section: Modified Quasi-linear Modelmentioning

confidence: 99%

High‐precision non‐linear modelling method for a switched reluctance linear machine by interpolation with using variant sigmoid function

Nie

Chen

Wang

et al. 2020

IET Electric Power Applications

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“…In [31], neural network has been used to find the gains of controller for different situations. Introducing appropriate equations for different situations in [32], the controller gains are calculated using the Bode diagram and the frequency response method. The block diagram used here to control thrust force of the STLSRM based on current control method is shown in Fig.…”

Section: Current Controlmentioning

confidence: 99%

Instantaneous Thrust Control of the Linear Switched Reluctance Motors with Segmental Translator

Ganji

Zare

2019

Scientia Iranica

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The linear switched reluctance machine (LSRM) has all advantages of rotary switched reluctance machine including simple and rugged structure, absence of magnetic material and windings on translator, high reliability and appropriate performance over a wide range of speed. Like rotary switched reluctance motor with segmental rotor, segmental translator linear switched reluctance motor (STLSRM) has capability to produce higher output power/weight in comparison to the conventional linear switched reluctance motors. Due to high advantages of the STLSRM drive, various control algorithms including current control, model predictive control, direct force control, universal control and force distribution function are investigated for the first time to control the instantaneous thrust of this motor. Applying these algorithms to a typical three-phase STLSRM, simulation results are presented and they are compared together from the force ripple reduction point of view.

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“…Como alternativa, alguns trabalhos na literatura fazem uso de modelos linearizados em pontos críticos de operação (por exemplo, elevada potência e baixa velocidade) para o projeto dos controladores. Entretanto, temse como desvantagem uma potencial perda de desempenho em regiões de operação distantes do ponto de projeto [12]. Neste sentido, para garantir desempenho robusto em GRVs, diferentes estratégias têm sido utilizadas [5], [6], [8], [13].…”

Section: Introductionunclassified

Controle Robusto Aplicado a Geradores de Relutância Variável Conectados à Rede

Osório¹,

Scalcon²,

Koch³

et al. 2020

Eletrônica de Potência

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Este artigo apresenta como contribuição uma estratégia de controle para geradores de relutância variável conectados à rede por meio de inversor trifásico com filtro LCL, na qual controladores robustos são projetados para garantir estabilidade e desempenho. Um controlador sliding mode é utilizado para regular a tensão do barramento CC, sendo detalhados o procedimento de projeto e a análise de estabilidade com esta técnica. Para o inversor conectado à rede, um controlador de corrente robusto por realimentação de estados é projetado com base em desigualdades matriciais lineares, garantindo correntes de rede com baixo conteúdo harmônico, rejeição de distúrbios e fornecendo um certificado de estabilidade robusta frente a incertezas e variações paramétricas nas impedâncias da rede. Resultados experimentais e de simulação são apresentados, confirmando boa regulação da tensão do barramento CC e correntes injetadas na rede com bons desempenhos transitório e em regime permanente, atendendo aos requisitos de norma pertinente para conexão à rede elétrica.

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Linearized Modeling of Switched Reluctance Motor for Closed-Loop Current Control

Cited by 76 publications

References 20 publications

High‐precision non‐linear modelling method for a switched reluctance linear machine by interpolation with using variant sigmoid function

High‐precision non‐linear modelling method for a switched reluctance linear machine by interpolation with using variant sigmoid function

Instantaneous Thrust Control of the Linear Switched Reluctance Motors with Segmental Translator

Controle Robusto Aplicado a Geradores de Relutância Variável Conectados à Rede

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