What is Eddy Current Losses in Permanent Magnet Materials? Understanding and Minimizing Eddy Current Losses in SmCo and NdFeB Magnets Eddy current losses are a significant concern in rotating machinery, especially when using metal-based permanent magnets like Samarium-Cobalt (SmCo) and Neodymium-Iron-Boron (NdFeB). Core losses, which include both eddy current losses and hysteresis losses, must be [...]
Eddy Current Loss of Rare Earth Permanent Magnet Both samarium cobalt and neodymium iron boron are metal materials. Due to the good electrical conductivity of metal materials, the resistivity is very low. This is not a good thing for rotating machinery such as motors, because it will bring eddy currents to rotating machinery Loss, causing [...]
Customized Laminated Magnet Used in Motor or Generator Laminated magnet mainly used in the motor or generator industry, so we call it laminated motor magnet sometimes.Usually laminating rare earth magnet to make them stronger and efficiency for motor or rotor building only. Decrease Eddy Current Loss in High-Efficiency Motors. High efficiency demands the best materials, [...]
Magnetic Losses Reversible Magnetic losses are normal behavior for all magnetic materials. As the remanence of the all the magnetic materials decreases with increasing temperature, the temperature coefficient is negative, it is to be expected that the magnetic field of a magnet also will decrease with an increase of the temperature. However, this decrease of [...]
Investigation of magnet segmentation techniques for eddy current losses reduction in permanent magnets electrical machines Reducing eddy current losses in magnets of electrical machines can be obtained by means of several techniques. The magnet segmentation is the most popular one. It imposes the least restrictions on machine performances. This paper investigates the effectiveness of the [...]