Wondering what magnet material to select for your application? Attend our tutorial at the ITEC 2017 conference and learn more. Arnold's Dave Farnia will discuss the impact of magnet material selection on transformers as well as permanent magnet machines. Basic concepts for electrical steels and permanent magnets will be covered, as well as their impact on overall system performance. Dave will wrap it up with pricing trends in both permanent magnets and thin gauge electrical steels.
Permanent magnet assemblies and electric machines are challenged to achieve maximum power density in a smaller, lighter package. Join us at the IEEE International Electric Machines & Drives Conference, where we'll take a closer look at the material technology and motor topology of two high speed applications.
Motor designers in markets such as aerospace, motorsports, automotive, and industrial are challenged to continually improve the efficiency of their high efficiency, high switching frequency applications. These applications demand the best magnetic materials, and Arnold L Type laminated magnets maximize performance under extreme conditions.
Aaron Williams, Arnold Magnetic Technologies' Engineering Manager, will speak about magnetic material selection at the upcoming Motor & Drive Systems Conference. The conference focuses on on the latest technical advancements impacting the design and integration of motor, drive systems and motion control for manufacturing, industrial and packaging, as well as automotive/EV applications.
Arnold Magnetic Technologies will showcase its high performance magnetic materials for the oil and gas market at next week’s SPE Artificial Lift Conference and Exhibition—North America. The conference focuses on case studies and best practices in artificial lift applications, primarily for unconventional shale developments.
Following in the slipstream of the aerospace industry, automotive OEMs are increasingly turning to new materials and technologies to reduce weight and improve energy efficiency in their products. The use of magnet-based motor designs is one approach that is translating successfully to the automotive industry.
Permanent Magnets Dominate EV
Vehicle electrification is a growing market for rare earth magnets. Consumption of rare earth magnets in transportation is estimated to rise from 7,000 tons in 2015 to 17,000 tons in 2020. Government mandates to reduce pollution, as well as high gasoline prices, are driving users to purchase more environmentally friendly vehicles. Permanent magnet machines are currently the leading choice for high performance automotive applications. The rotor’s well-balanced magnetic field and the lower stator current requirement, paired with very strong positional control, result in a higher motor efficiency. Two common choices for electric vehicle applications are neodymium magnets and samarium cobalt magnets, and each has its advantages.
Every type of permanent magnet has a unique set of characteristics that can affect how is performs in various applications. When evaluating magnet options for your project, pay attention to the following:
Smaller Motors, Bigger Design Challenges
Permanent magnet (PM) motors for EV applications have unique design challenges. As electric motors become smaller and faster, designers must consider the potential effects of electrical drive frequencies, magnetic eddy currents, laminated steel core loss, mechanical stresses on the quickly rotating shaft (rotor dynamics), and electrical control of the motor through the inverter.