Starting and synchronization of permanent magnet hysteresis motors

Rahman, M.A.; Qin, Ruifeng

doi:10.1109/ias.1994.377470

Cited by 14 publications

(5 citation statements)

References 13 publications

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“…The motor torque is thoroughly developed with both a permanent magnet and hysteresis effects at synchronous speed [13]. The dq-axis equations of the motor are derived from the equivalent circuits and are expressed as in [14].…”

Section: Modeling Of the Hysteresis Motormentioning

confidence: 99%

Design of a self-starting hybrid permanent magnet hysteresis synchronous motor connected directly to the grid

Gedikpınar¹,

Atdogmus²

2017

Turk J Elec Eng & Comp Sci

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Abstract:In this work, a permanent magnet hysteresis synchronous (PMHS) motor was designed to improve the efficiency of the system. The proposed motor is intended for pumping applications, such as submersible pump motors, fire pumps, oil-well pumps, and circulation pumps requiring high-speed operation. The efficiency of the pump system increases depending on the speed of the pump fans. The total efficiency of the pump system is reduced because the load increases exponentially in these types of application systems. The speed is important for the pumping applications in order to improve the efficiency of the pump system. Nowadays, traditional induction motors are widely used in these applications; however, they experience rotor slip when operating under synchronous speed with loaded conditions. The system efficiency is dramatically reduced when the rotor slip is increased by depending on the pump load. The proposed motor can achieve self-starting without any kind of driver for direct connection to the grid. In addition, the proposed motor can be operated at synchronous speed under full load conditions. The designed motor is analyzed by using simulation results, such as the performance of the starting motor at various loads, stator-rotor flux density, and synchronous speed at stand-still.

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Section: Modeling Of the Hysteresis Motormentioning

confidence: 99%

Design of a self-starting hybrid permanent magnet hysteresis synchronous motor connected directly to the grid

Gedikpınar¹,

Atdogmus²

2017

Turk J Elec Eng & Comp Sci

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“…Park's equations are obtained by setting the speed of the stator frame equal to the rotor speed, as shown in Fig. 3 [9].…”

Section: Equivalent Circuitmentioning

confidence: 99%

A permanent magnet hysteresis hybrid synchronous motor for electric vehicles

Rahman

Qin

1997

IEEE Trans. Ind. Electron.

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This paper presents the design, analysis, and PWM vector control of a hybrid permanent magnet hysteresis synchronous (PMHS) motor with a view to improve the performances of the motors for electric vehicle application. This hybrid design combines the advantageous performance features of both the conventional hysteresis motors and the permanent magnet motors. Electrical equivalent circuits of the PMHS motor are developed for both the synchronous and asynchronous modes of operation. PWM vector control simulation results for the motor drives are given. Finally, a laboratory prototype hybrid hysteresis permanent magnet motor was built. Test results validate the superior performances of the new motor.

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“…However, the disadvantages of these motors are low power factor, high magnetizing current, and low efficiency. Moreover, when a random disturbance happens, the rotor of the hysteresis motor oscillates around the synchronous speed at a low frequency equal to [3][4][5] Hz. This phenomenon is called "hunting".…”

Section: Introductionmentioning

confidence: 99%

“…Experimental results of this research showed that the hysteresis-reluctance motor has better performance characteristics in comparison to the conventional hysteresis motor. In [4], a cylindrical PMHS motor was investigated, and by using state-space equations, the performance characteristics of this motor were predicted in the time domain. This method in comparison to the previous analytical methods has some advantages such as the capability of prediction of the machine performance characteristics even in the case of having asymmetric or nonlinear parameters.…”

Section: Introductionmentioning

confidence: 99%

A new semianalytical method for analysis of the disc-type permanent magnet hysteresis motor in steady-state operational conditions

Behniafar¹,

Darabi²

2018

Turk J Elec Eng & Comp Sci

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Considering the characteristics of hysteresis and permanent magnet motors, it seems that these two motors are complements of each other. Thus, their combination yields a motor with an excellent performance. In order to preserve the major advantages of both motors in the new motor, a disc-type slotless structure is chosen. This paper presents a new finite-element method for the modeling of disc-type permanent magnet hysteresis synchronous (PMHS) motor. In this modeling method a new iterative algorithm is used. Programming software has been linked to finiteelement software because of its limitation in the modeling of hysteresis phenomena. Validity of the proposed analysis is checked by experimental results. Reasonably close agreement between the two is obtained and good performance of the PMHS motor is verified.

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Starting and synchronization of permanent magnet hysteresis motors

Cited by 14 publications

References 13 publications

Design of a self-starting hybrid permanent magnet hysteresis synchronous motor connected directly to the grid

Design of a self-starting hybrid permanent magnet hysteresis synchronous motor connected directly to the grid

A permanent magnet hysteresis hybrid synchronous motor for electric vehicles

A new semianalytical method for analysis of the disc-type permanent magnet hysteresis motor in steady-state operational conditions

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