Low-speed Direct-drive Magnetically Assisted Synchronous Inductive Motors for Cooling Tower Applications
In this article we will introduce the application of low-speed direct-drive reluctance motors in cooling towers, which is the first customer order for Oceanpower's self-developed low-speed direct-drive magnetically assisted synchronous reluctance motor system.
Advantages of Low-Speed Direct-Drive Magnet-Assisted Synchronous Reluctance Motor
Low-speed direct drive motors, because they eliminate the intermediate transmission link, have the advantages of maintenance-free and high efficiency, and are the preferred solution to replace the traditional asynchronous motor + reducer drive method. At present, domestic low-speed direct drive motors are mainly rare earth permanent magnet motors. However, because the permanent magnet material is neodymium iron boron, it is expensive, is greatly affected by rare earth price fluctuations, and is easy to demagnetize at high temperatures. There are certain difficulties in its promotion and application. . The low-speed direct-drive magnet-assisted synchronous reluctance motor developed by Hiatran Electric uses rare-earth-free and high-temperature-resistant ferrite permanent magnet materials. Through multi-parameter and multi-objective simulation optimization of the motor topology, the reluctance torque is fully utilized to achieve better performance. The low cost achieves the same performance as the low-speed direct drive rare earth permanent magnet motor, while also having better high temperature resistance.
Cooling Tower Direct Drive Modification
The first application scenario of Hiatran Electric's low-speed direct-drive magnet-assisted synchronous reluctance motor system is the direct-drive transformation of cooling towers. The traditional cooling tower drive structure is an asynchronous motor + reducer. The efficiency of the asynchronous motor itself is low, and it is affected by the problems of the reducer and the transmission shaft. Efficiency is affected, the system efficiency is often low, and the reducer requires regular maintenance by dedicated personnel. Using a low-speed direct-drive magnet-assisted synchronous reluctance motor for direct-drive transformation, the rated efficiency of the motor is higher, the high-efficiency area is wider, and there is no loss of the intermediate transmission device. Compared with the traditional structure, the power saving rate can generally reach more than 30%, with Obvious energy saving effect and economic benefit.
Applications In Other Areas
In addition to cooling towers, low-speed direct drive motors have a wide range of applications, such as powder concentrators, mixers, ball mills, belt conveyors, elevators, traction machines, wind power, etc. Hiatran Electric's low-speed direct drive magnet-assisted synchronous reluctance motor system takes care of both High efficiency, high reliability and low cost, it is currently the most cost-effective solution and best choice for low-speed direct drive systems!
The low-speed direct-drive magnet-assisted synchronous reluctance motor system independently developed by Hiatran Electric is the first low-speed direct-drive magnet-assisted synchronous reluctance motor in China. It has achieved a breakthrough in this technology and filled the application field of magnetization-assisted synchronous reluctance motor technology. The gap is an important milestone in the development of magnet-assisted synchronous reluctance technology and is of very important significance.