Built in permanent magnet synchronous machine (IPMSM) has the characteristics of high efficiency and high power density. It is widely used in household appliances, electric vehicles, new energy power generation, aerospace and other fields. The sensorless control of permanent magnet synchronous moto ...

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Since the iPhone 8 in 2017, Apple has added the wireless charging function to all iPhone models, which is close to the use of other mobile phone wireless charging methods. It starts charging when it is placed on the wireless charger. This wireless charging depends on the alignment of the transmitti ...

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Based on the basic performance requirements of new energy vehicle drive motor, the commonly used drive motor types mainly include three categories, namely AC asynchronous motor, permanent magnet synchronous motor and switched reluctance motor. At present, in the statistics of matching models of var ...

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Permanent magnet synchronous motor is mainly composed of stator, rotor and shell. The stator core is laminated to reduce the iron loss due to eddy current and hysteresis effect; The winding is usually three-phase symmetrical structure, but the parameter selection is quite different. The rotor par ...

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Abstract The bending strength, fracture toughness, hardness and brittleness index of Ce-Fe-B magnets with different CE contents (R1-xCex)30.5’31.5Febal.B1M1 (mass fraction,%) were tested, and the micro fracture of the magnets was analyzed by SEM and EDS. The results show that the ...

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In this paper, the development process, performance requirements and main types of rare earth permanent magnet materials are introduced, with emphasis on the production process of sintered NdFeB magnets. Finally, the application of sintered NdFeB magnets in production, scientific research, life a ...

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In this article, the development process, performance requirements and main types of rare earth permanent magnet materials are introduced, with emphasis on the production process of sintered NdFeB magnets. Finally, the application of sintered NdFeB magnets in production, scientific research, life ...

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This paper outlines the principle and advantages of magnetic levitation motor, focusing on the structure and working principle of magnetic levitation wind turbine. The current application fields of magnetic levitation motor are introduced. Finally, this paper looks forward to the future developme ...

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What is magnetic levitation motor? Magnetic levitation motor is a kind of special motor which has no contact between stator and mover. According to the force of magnetic field, it can be divided into attraction type and repulsion type; According to the coupling degree of magnetic field, it can ...

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Magnets are like people. Some people don’t like hot, others don’t like cold. Some are very strong, some are easy to go wrong. Some people are more dangerous than others. This may seem like a lot to remember, but handling and storing magnets properly is the best way to ensure optimal and ...

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Copper has excellent electrical conductivity, which is the reason why copper is widely used in the field of power supply and use. The application of copper in the field of motor is of great significance to improve the energy efficiency of motor. As a successful case of copper in the field of high ...

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What is an electric vehicle motor? An electric vehicle motor refers to a kind of electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. Permanent magnet motor is represented by the letter “M” in ...

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