Design and performance analysis of permanent magnet flux-switching motors using segmental permanent magnets

Zhou, Yongqin; Zhou, Lei; Hu, Bo; Li, Ran

doi:10.1587/elex.16.20190193

Cited by 6 publications

(6 citation statements)

References 23 publications

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“…The rotor excitation and stator armature winding of HTS machines are fixed on nonmagnetic structures. Therefore, we make the following basic assumptions in this paper [28,29]. 1) Ferromagnetic core with infinitely large magnetic permeability.…”

Section: Problem Definition and Assumptionmentioning

confidence: 99%

Accurate sub-domain model for magnetic field computation in electrical machines with HTS materials

Chang

Bao

2023

IEICE Electron. Express

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The primary aim of this study was to develop and validate an accurate sub-domain analytical model to estimate the magnetic field of electric machines with high-temperature superconducting (HTS) excitation and armature windings. The model was developed by utilizing the separation variable and harmonic analysis methods to solve Laplace's or Poisson's equations of the vector magnetic potential in two-dimensional polar coordinates. The theoretical derivations of the final analytical equations for the magnetic flux density distribution in the air-gap and in permanent magnets, electromagnetic torque, and no-load backelectromotive force (back-EMF) are explained in detail. Finally, the magnetic vector potential, flux density distribution of each sub-domain, noload back-EMF, and inductive reactance of the armature winding were solved by considering the critical parameters of the superconducting materials, and the influence of higher harmonics. The finite-element method (FEM) was used to validate the accuracy of the developed analytical method for the investigated HTS generator. The results show the developed analytical method is accurate and time-saving.

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Section: Problem Definition and Assumptionmentioning

confidence: 99%

Accurate sub-domain model for magnetic field computation in electrical machines with HTS materials

Chang

Bao

2023

IEICE Electron. Express

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“…The system block diagram of the whole PID controller is shown in Figure 1, and its corresponding transfer function is shown in Equation (2), where K p is the proportional coefficient, K i is the integral coefficient, K d is the derivative coefficient, and DELAY is the system delay time, expressed as t d .…”

Section: Pid Controller Parameters Tuning Considering Delay Timementioning

confidence: 99%

“…The motor drive system consists of a drive motor, power converter, and controller [1][2]. The winding of the drive motor can be regarded as a combination of resistance and inductance in the calculation and analysis.…”

Section: Introductionmentioning

confidence: 99%

A Parameter Tuning Method of Adaptive Dynamic PID Controller for Time Delay Integral System

Wang,

Chen,

Shao

et al. 2023

J. Phys.: Conf. Ser.

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PID controllers are widely used in the control of integral systems. In the practical application of integral systems, the control effect is usually affected by the delay time, and at the same time, the large variation of the controlled integral parameters will also affect the control effect of the controller. This paper proposes an adaptive dynamic PID controller parameter tuning method suitable for time delay integral systems, considering the influence of parameters such as the voltage of the integral system, the variation range of the controlled object, and delay time, making the relationship between the parameters of the PID controller and the control object of the integral system more explicit. At the same time, this paper considers the tuning of the differential filter parameters in practical applications. A non-linear system with a 10-fold variation of the controlled integral parameters is simulated in Simulink, and the dynamic control of the non-linear system is realized using the method proposed in this paper, achieving a better control effect compared to the traditional control with constant PID parameters.

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“…For an electric vehicle, it is known that a driving system is one of the most important parts. For the existing electric vehicles, the drive system usually uses a permanent magnet motor, on the other hand, as an excellent alternative to permanent magnet synchronous motors (PMSMs) or induction motors [1] [2], switched reluctance motors (SRMs) have the advantages of simple structure, robustness, low cost, long life, etc., at the same time, however, SRMs suffer from the noise and torque ripple, which restrict the application of SRMs. A main reason is that SRMs are conventionally driven by a rectangular winding current, which is generated by the asymmetric H-bridge (AHB) power converter [3].…”

Section: Introductionmentioning

confidence: 99%

A space vector PWM fed SRM with full bridge power converter

Sun

Chen

Dou

2023

IEICE Electron. Express

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In order to reduce the torque ripple of a switched reluctance motor in the electric vehicles, a space vector pulse width modulation (SVPWM) driving method for the switched reluctance motor (SRM) is proposed. With a ring structure, a three-phase SRM can be driven by using a standard fullbridge power converter instead of the conventional asymmetric H-bridge. Based on this type of driving topology, an SVPWM method is applied for driving the SRM. The SVPWM method is compared to the conventional SRM driving method by using the asymmetric H-bridge, the results show that the SVPWM can reduce the torque ripple in the SRM effectively. The experimental validation is also made to verify the proposed driving topology and method, of which the results match well with the simulated results.

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Design and performance analysis of permanent magnet flux-switching motors using segmental permanent magnets

Cited by 6 publications

References 23 publications

Accurate sub-domain model for magnetic field computation in electrical machines with HTS materials

Accurate sub-domain model for magnetic field computation in electrical machines with HTS materials

A Parameter Tuning Method of Adaptive Dynamic PID Controller for Time Delay Integral System

A space vector PWM fed SRM with full bridge power converter

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