Synchronous performance prediction of AC permanent magnet motor.

Ishizaki, Akira; Tabako, Tomoyuki; Saitō, Kazuo

doi:10.1541/ieejpes1972.106.347

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…2 shows the configuration of the harmonic component estimation method. As a conventional estimation method for the harmonic components included in the flux-linkage, there are the estimation method from the measured induced voltage, and computer analysis method using simulation software such as JMAG [12]. These methods have disadvantages such as requiring certain time for the analysis and the measurement in advance.…”

Section: The Proposed Methodsmentioning

confidence: 99%

A novel suppression method of 6th-order torque ripple of permanent magnet synchronous motor without torque meter

Nakata

Hoshi

Yamaguchi

2015

2015 18th International Conference on Electrical Machines and Systems (ICEMS)

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The authors have proposed a new suppression method of the 6th-order torque ripple of permanent magnet synchronous motors (PMSMs). The proposed method can estimate the harmonic components in the flux-linkage which is the cause of 6th-order torque ripple. And, the proposed method does not use a torque meter, and estimate the harmonic components by mainly using current sensors of the inverter. By simulation using two RT models, it was confirmed that the 6th-order torque ripple could be suppressed approximately 48%.Index Terms-Permanent magnet synchronous motor, 6th-order torque ripple, periodic disturbance observer, without Torque Meter.

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Section: The Proposed Methodsmentioning

confidence: 99%

A novel suppression method of 6th-order torque ripple of permanent magnet synchronous motor without torque meter

Nakata

Hoshi

Yamaguchi

2015

2015 18th International Conference on Electrical Machines and Systems (ICEMS)

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“…Search coils had been used for measuring stator flux. Another interior type PMSM was developed at Nagaoka University by Ishizaki et al [14] in 1985, also by using ferrite magnets, of rating 0.75 kW and having four poles. Ferrite magnets were located inside the rotor in radial and peripheral directions as shown in Fig.…”

Section: Rotor Topologies and Designmentioning

confidence: 99%

“…The machine was represented by a two‐axis phasor diagram and the results were compared with the test results conducted on a three‐phase, star connected, four‐pole PMSM with SmCo 5 . During the same period, Ishizaki et al [14] of Japan analysed the synchronous performance of an improved version of ac PMSM, for which the rotor had three‐interior magnets per pole and double cage winding for starting. The air gap field was obtained by FE field solution and combined with air gap inductance calculations.…”

Section: Steady‐state Analysismentioning

confidence: 99%

Overview of research evolution in the field of line start permanent magnet synchronous motors

Ugale

Chaudhari

Pramanik

2014

IET Electric Power Applications

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In this study, wide overview of the existing line start permanent magnet synchronous motors literature is presented. The treatment of the subject has been effectively subdivided in to five sections; (i) rotor topologies and design, (ii) steady state analysis, (iii) transient state analysis, (iv) parameter estimation and (v) high efficiency standards. Although, there are numerous papers published in each category, only those important papers which have made significant contributions in the developments and thus triggered research in this field are discussed here. 2 Rotor topologies and design The performance of the Merrill's PM excited synchronous motor [1] was found to be comparable with that of induction motor (IM). Fig. 1 shows the Merrill's rotor configuration. The four sets of flux loops (i.e. A, B, C and D) as shown in the figure, show the corresponding flux patterns under different operating conditions; and should not be taken as a complete flux distribution pattern for a single condition. The machine has negligible reluctance torque component. Alger's discussion on this paper is quite informative and he had postulated that LSPMSM will gain popularity if the future research produces a magnet of higher stored energy and coercive force. Douglas [2], then in 1959, derived the current loci of Merrill's motor by using Blondel's two-reactance theory and predicted that with improved magnet materials, the machine performance would be better. Subsequently, based on the guidelines by Merrill in his paper, a 2 pole, 0.5 hp machine was developed as shown in Fig. 2, and reported by Cahill and Adkins [3]. They found that the rated and the pull-out torque of this machine were less than those of IM of the same frame size because of the lower value of air gap flux density. Moreover, authors observed that this www.ietdl.org

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Steady-state performance analysis of permanent magnet synchronous motors including space harmonics

1994

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Synchronous performance prediction of AC permanent magnet motor.

Cited by 4 publications

References 4 publications

A novel suppression method of 6th-order torque ripple of permanent magnet synchronous motor without torque meter

A novel suppression method of 6th-order torque ripple of permanent magnet synchronous motor without torque meter

Overview of research evolution in the field of line start permanent magnet synchronous motors

Steady-state performance analysis of permanent magnet synchronous motors including space harmonics

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