Field and Torque Calculation and Transient Analysis in Variable Reluctance Machines

Amin, Bahram; Masoumi, Moien; Mirsalim, Mojtaba

doi:10.1109/tmag.2017.2714622

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…On the other hand, information about machine and material properties are not required to obtain magnetic characteristics through experimental method. It comprises of direct and indirect method of finding magnetic characteristics [17]- [19]. Magnetic sensors are employed in the direct measurement method to measure the magnetic flux linkages.…”

Section: Introductionmentioning

confidence: 99%

A simple approach for the computation of magnetic characteristics of 4-phase switched reluctance motor

Hadapad,

Naik

2024

IJPEDS

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Switched reluctance motor (SRM) is non-linear in nature due to non-uniform air gap between stator and rotor that is produced from doubly salient poles. To control the operation of non-linear motor, a precise modelling of magnetic characteristic is essential. Traditionally magnetic equivalent circuit, finite element method (FEM) and experimental approaches have been used to derive magnetic characteristics of SRM. These methods involve complex computational steps and numerous assumptions for its calculations. To avoid this complexity, a simple approach is suggested in this paper to compute magnetic characteristics of 4-phase SRM. In this approach, SRM phase inductance is measured directly to identify the location of rotor with respect to stator from unaligned to aligned position. Then, single phase of SRM is excited through asymmetric converter and voltage and currents of corresponding phase is recorded with rotor being blocked using indexing head. Later recorded values are used to compute the magnetic characteristics from unaligned to aligned position. The proposed method is carried out using field programmable gate array (FPGA) controlled 8/6, 4-phase SRM. Further, accuracy of obtained magnetic characteristic is verified using FEM. In addition, fidelity of the magnetic characteristic is also validated by developing a dynamic model of SRM in MATLAB/Simulink

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Section: Introductionmentioning

confidence: 99%

A simple approach for the computation of magnetic characteristics of 4-phase switched reluctance motor

Hadapad,

Naik

2024

IJPEDS

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“…These methods are seldom adopted in practical SRM speed control system, as large quantity of measurement data is required to ensure the modelling accuracy. In [5, 19, 20], control schemes were obtained where look‐up tables and improved look‐up tables were used to calculate torque of the motor, where a large amount of data storage resources is required.…”

Section: Introductionmentioning

confidence: 99%

Torque analytical model of switched reluctance motor considering magnetic saturation

Hao

Wang

Cui

et al. 2020

IET Electric Power Applications

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Flux saturation of switched reluctance motors (SRMs) and severe non‐linear relationship between current, position angles and electromagnetic torque lead to the difficulty of torque modelling and analysis. Specifically, the permeability of ferromagnetic material varies with the magnetic field strength H, and the core saturation effect increases with H. In this study, piecewise curve fitting method is adopted for analysing the relationship between the permeability and the stator winding current. The magnetic equivalent circuit method is adopted to build an analytical model for a SRM where the saturation of ferromagnetic material is expressed in the form of variable permeance. The comparison between computation results of analytical model and finite‐element method simulation results verifies the correctness of the proposed model. Simulation and experimental research of a SRM speed control system verify the practicability of the model.

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Analytical Prediction of Torque of Switched Reluctance Machines Considering Nonlinear Characteristics

Hua

Wang

2022

IEEE Trans. Ind. Electron.

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Field and Torque Calculation and Transient Analysis in Variable Reluctance Machines

Cited by 4 publications

References 9 publications

A simple approach for the computation of magnetic characteristics of 4-phase switched reluctance motor

A simple approach for the computation of magnetic characteristics of 4-phase switched reluctance motor

Torque analytical model of switched reluctance motor considering magnetic saturation

Analytical Prediction of Torque of Switched Reluctance Machines Considering Nonlinear Characteristics

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