About half of the output of samarium cobalt magnetic steel material is used to manufacture various magnetic motors. There are many types of samarium cobalt motors, and according to the classification of AC and DC, permanent magnet motors can be divided into 10 motor names. Samarium cobalt permanent magnet AC motors include permanent magnet synchronous generators, etc. The uses of these Samarium cobalt magnetic steel motors are shown in the table, with capacities ranging from a few milliwatts to hundreds of kilowatts. They are widely used in modern science and technology, as well as in the national economy and living sectors.

The advantages of samarium cobalt permanent magnet motors compared to non permanent magnet motors are that they do not require excitation windings or exciters, have high specific power, small size, light weight, power saving, copper saving, and other valuable metals. The emergence of the third-generation samarium cobalt magnetic steel material has promoted the development of permanent magnet motors.

The Current Status and Future of Samarium Cobalt Magnet Materials in the Wind Power Industry

Wind power generation is one of the important application fields of samarium cobalt magnets. At present, the global installed capacity of wind power has exceeded 200 million kilowatt hours. In 2012, the total amount of wind power connected to the grid in China reached 60.83 million kilowatt hours, and the power generation reached 100.4 billion kilowatt hours. However, due to factors such as excessive expansion and a significant increase in rare earth raw materials, wind power equipment has an overcapacity of 260%.

The two main types of generator sets in the world today are doubly fed generator sets and direct drive generator sets. In a doubly fed generator set, the cost of the generator accounts for 7% of the entire unit, while in a direct drive generator set, the cost of the generator accounts for 31.5%. That is to say, for a direct drive generator set, the cost of the generator cannot exceed 31.5%. If the price of samarium cobalt magnets can maintain long-term stability and be accepted by application companies, then samarium cobalt permanent magnet direct drive technology will become the mainstream technology in the future wind power market.