PERMANENT MAGNET ARRANGEMENT METHOD FOR ELECTRIC MOTOR

A permanent magnet arrangement method for an electric motor. A sinusoidal field pulse width modulation (SFPWM) theory is proposed to design an electric motor permanent magnet array, such that the variation of magnetic induction intensity of a spatial magnetic field of the electric motor permanent ma...

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Bibliographische Detailangaben
Hauptverfasser:	LIU, Haitao, TIAN, Kuisen, SHI, Yu, YUAN, Wenye, KONG, Dekun, SHANG, Jing, XU, Yijing, ZHANG, Wenlong, CHEN, Gaohua, SU, Jungui, HAN, Liang, WANG, Yu, WU, Qiang
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A permanent magnet arrangement method for an electric motor. A sinusoidal field pulse width modulation (SFPWM) theory is proposed to design an electric motor permanent magnet array, such that the variation of magnetic induction intensity of a spatial magnetic field of the electric motor permanent magnet array in a moving direction is close to a sine curve, there being one or more pieces of magnetic steel in the permanent magnet array, reducing the amount of magnetic steel of an electric motor having the same capacity. The permanent magnet arrangement method for an electric motor comprises: proposing a sinusoidal field pulse width modulation (SFPWM) theory to design the number of pieces of magnetic steel, the size of the magnetic steel, and the arrangement position of the magnetic steel in an electric motor permanent magnet array, the number of pieces of magnetic steel being an odd number greater than or equal to 1; and arranging corresponding magnetic steel according to the arrangement position of the magneti