Optimal torque control of permanent magnet synchronous machines using magnetic equivalent circuits

Kemmetmüller, Wolfgang; Faustner, David; Kugi, Andreas

doi:10.1016/j.mechatronics.2015.10.007

Cited by 20 publications

(16 citation statements)

References 37 publications

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“…• Finally, a theoretical model using the MEC approach as in [19] or [20]. For that, the magnetic circuit has been decomposed in several elements of simple geometry (see Fig.…”

Section: Model Comparisonmentioning

confidence: 99%

“…A different approach is the use of magnetic equivalent circuits (MEC), a method that simplifies the description of the electromagnetic dynamics and provides an analytical expression for the reluctance. Several recent MEC-based works can be found, including [19], where a permanent magnet actuator is analyzed by means of three magnetic subcircuits, [20], where an MEC model is used to design a torque controller for a synchronous machine, or [21], where the authors propose a partially unknown reluctance which is experimentally identified. There also exist some works that use the MEC approach to calculate an analytical reluctance which is later validated or even corrected with FEM simulations [3,22], and some papers that compare the results of both approaches [23].…”

Section: Introductionmentioning

confidence: 99%

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Reluctance actuator characterization via FEM simulations and experimental tests

Ramirez-Laboreo

Sagüés

2018

Mechatronics

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Modeling the reluctance of an electromagnetic actuator is a critical step to analyze its dynamics and design model-based controllers. On the one hand, analytical expressions based on either theoretical or empirical models often lack accuracy due to model inconsistencies. On the other, numerical methods are much more precise but require exact information about the system geometry, materials and winding configuration. In this paper we present a new method that brings together the good properties of the finite element method and of system identification techniques to obtain an accurate description of the reluctance and its derivative. Since the method is designed to identify the unknown parameters of the system, it is particularly well suited for modeling existing commercial devices. An application on a safety valve used in gas lines is included to illustrate the method and a discussion on the results shows the advantages of our proposal.

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“…• Finally, a theoretical model using the MEC approach as in [19] or [20]. For that, the magnetic circuit has been decomposed in several elements of simple geometry (see Fig.…”

Section: Model Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reluctance actuator characterization via FEM simulations and experimental tests

Ramirez-Laboreo

Sagüés

2018

Mechatronics

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“…Proceeding as usual, the switching action is designed so that s ds dt < 0. Adding and subtracting Bu eq , taking into account (14) and particularizing all of the computations to the model given in (13) and to the switching function (10) one yields…”

Section: Sliding Mode Controllermentioning

confidence: 99%

“…The permanent magnet case (PMSM, Permanent Magnet Synchronous Machine) is the most studied. Examples for controlling PMSM include linear techniques [8], Model Predictive Controls [9], direct torque control [10], hybrid sensorless control [11]and, recently, nonlinear control techniques such as Passivity-based control [12] Optimal torque control [13], Fault-Tolerant Control [14] or Lyapunov-based designs [15] are also used for driving applications.…”

Section: Introductionmentioning

confidence: 99%

Extended SMC for a stand-alone wound rotor synchronous generator

Munoz-Aguilar

Dòria‐Cerezo

Fossas

2017

International Journal of Electrical Power & Energy Systems

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In this paper, a sliding mode controller for the stator voltage amplitude of a stand-alone wound rotor synchronous generator is presented. The standard dq-model of the electrical machine connected to an isolated inductive load is obtained. Then, the control law is designed using sliding mode techniques. The controller introduces a dynamic extension so that the stator voltage amplitude has relative degree one. As a result, a fast controller, robust to both machine and load parameters variations, is obtained. The control algorithm, that does not requires the knowledge of the parameters, is implemented and validated experimentally.

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“…The magnetic equivalent circuit (MEC) method is a common analytical method. The MEC simplifies the geometry or material nonlinearity and can quickly determine the influence of key design parameters [20][21][22][23][24]. Mohammadi S et al use the MEC to study the performance of the PMEC.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Modeling of Transmission Performance for Permanent Magnet Eddy Current Coupler

Yang

Liu

Wang

2019

Mathematical Problems in Engineering

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Establishing the analytical model for accurately predicting the transmitted torque of the permanent magnet eddy current coupler (PMEC) with double conductor rotors is very important to study the nonlinear transmission performance of the PMEC. In this paper, based on magnetic equivalent circuit (MEC) approaches, considering the effects of permanent magnet (PM) end leakage, side leakage, and back iron saturation, the 3D magnetic field model of the PMEC is established. Based on the magnetic field model, combined with Faraday’s law and Ampere’s law, the 3D nonlinear model of the PMEC is established. The proposed model adopts the Jenei method to describe the inductance limited eddy current field. The theoretical data, 3D finite element method (FEM) data, and experimental data are compared. The research shows that the predicted value of the analytical model matches well with the torque obtained by 3D FEM and experiments in the range of 0-100% slip, with an error less than 5.3% observed. Finally, the influence of structural parameters on the transmission performance of the PMEC is studied by using the proposed model.

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Optimal torque control of permanent magnet synchronous machines using magnetic equivalent circuits

Cited by 20 publications

References 37 publications

Reluctance actuator characterization via FEM simulations and experimental tests

Reluctance actuator characterization via FEM simulations and experimental tests

Extended SMC for a stand-alone wound rotor synchronous generator

Nonlinear Modeling of Transmission Performance for Permanent Magnet Eddy Current Coupler

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