Difference in Iron Loss and Magnetic Characteristics for Magnetic Excitation by PWM Inverter and Linear Amplifier

Fujisaki, Keisuke; Yamada, Ryou; Kusakabe, Takahiro

doi:10.1541/ieejias.133.69

Cited by 19 publications

(9 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9 The core losses under no-load condition are superior because of the effect of the PWM carrier frequency on the magnetic flux density time harmonics. 12,13 When the NO stator is used, this increase is 22 % in average, against 9 % for the AMM stator. The core losses caused by the carrier frequency in the AMM-IPM are then smaller than in the NO-IPM, which confirms the benefit of using AMM at high frequencies (carrier frequency of 10 kHz and fundamental frequency of 200 Hz at 3000 rpm).…”

Section: B Core Losses Measurement Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Core losses of an inverter-fed permanent magnet synchronous motor with an amorphous stator core under no-load

et al. 2016

Self Cite

View full text Add to dashboard Cite

In this paper, an interior permanent magnet synchronous motor (IPMSM) with a stator core made of amorphous magnetic material (AMM) is presented. The IPMSM is driven by a voltage source three-phase inverter with classical pulse width modulation (PWM) control. The core losses under no-load condition are measured by experiment and compared to an equivalent IPMSM with a stator core made of NO steel. Under these conditions, the core losses are influenced by the stator, rotor and magnet shapes but also by the PWM carrier signal that implies a high frequency harmonic in the magnetic flux density. It is demonstrated that the AMM can reduce the core losses by about 56 %.

show abstract

Section: B Core Losses Measurement Resultsmentioning

confidence: 99%

“…9, the inverter pulse width modulation (PWM) is responsible for high frequency harmonics in the magnetic flux density that increase the core losses. [11][12][13] a Nicolas Denis is the main author of this work (nicolas.denis@toyota-ti.ac.jp). …”

Section: Introductionmentioning

confidence: 99%

Core losses of an inverter-fed permanent magnet synchronous motor with an amorphous stator core under no-load

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…[1][2][3]. Eddy-current loss in the stator core also increases when the motors are driven by PWM inverters [4][5][6]. To decrease eddy-current loss in the stator cores of small, high-speed high-power motors, we developed a 0.08-mm-thick ultrathin electrical steel sheet.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Property Evaluation of the High-Speed Motor Stator Core Under Sinusoidal and Pulse Width Modulation Wave Excitation Using the Stator Winding Excitation Method

Oka

Enokizono²

2019

Journal of the Japan Society of Applied Electromagnetics and Me

View full text Add to dashboard Cite

Development of a small, high-speed and high-power motor is necessary to improve the performance of machines such as robots, and drones. The motor is excited by a high frequency voltage when the motor rotates high-speed. Moreover, the motor is driven by the pulse width modulation (PWM) inverter because efficiency and controllability is good. The driving voltage of the PWM inverter contains many higher harmonics waves. In such a motor, generation of heat due to the loss is a major problem. The loss of the motor includes an iron loss, a copper loss, and a machine loss; here we focus on the iron loss. Eddy-current loss increases especially under a condition of high frequency excitation. To suppress the eddy-current loss, we produced the stator core for a small, high-speed and high-power motor using a 0.08-mm-thick ultrathin electrical steel sheet. Additionally, to evaluate the magnetic properties of this new stator core with complex shape, we also developed a stator winding excitation method using a dummy rotor made of the 0.08-mm-thick ultrathin electrical steel sheet. In this paper, the effectiveness of a small, high-speed, and high-power motor stator core made of the 0.08mm-thick ultrathin electrical steel sheet is shown using the stator winding excitation method when it is excited by the PWM wave.

show abstract

“…For this reason, evaluation of this difference is important for the realization of even greater improvements in motor efficiency. Consequently, the effects of inverter excitation on the iron loss characteristics have been evaluated [9][10][11][12][13][14][15][16]. From the viewpoint of the characteristics of magnetic materials, we have especially pursued basic investigations of the effects of the on-voltage characteristics of power semiconductors on the minor loop of magnetic characteristics and on iron loss.…”

Section: Introductionmentioning

confidence: 99%

Iron Loss Characteristics of Electrical Steel Sheet under Inverter Excitation by Power Semiconductor with Extremely Low On‐Voltage Property

Odawara

Kayamori

Fujisaki

2016

Electrical Engineering Japan

Self Cite

View full text Add to dashboard Cite

SUMMARYIn this study, it is demonstrated that the iron loss from the SiC-MOSFET, which represents a new power semiconductor with an extremely low on-voltage for electric machine drives, is almost the same as that from an Si-IGBT, which is a conventional power semiconductor. In order to evaluate the iron loss characteristics when an SiC device is used, two single-phase pulse width modulation inverters were built and used for the excitation of a ring made up of electrical steel sheet. One of the inverter employed an SiC-MOSFET, and the other inverter employed an Si-IGBT. The iron losses for the two inverters are compared.

show abstract

Difference in Iron Loss and Magnetic Characteristics for Magnetic Excitation by PWM Inverter and Linear Amplifier

Cited by 19 publications

References 6 publications

Core losses of an inverter-fed permanent magnet synchronous motor with an amorphous stator core under no-load

Core losses of an inverter-fed permanent magnet synchronous motor with an amorphous stator core under no-load

Magnetic Property Evaluation of the High-Speed Motor Stator Core Under Sinusoidal and Pulse Width Modulation Wave Excitation Using the Stator Winding Excitation Method

Iron Loss Characteristics of Electrical Steel Sheet under Inverter Excitation by Power Semiconductor with Extremely Low On‐Voltage Property

Contact Info

Product

Resources

About