How to do efficient brushless dc motor energy conservation in the south of anhui? | | efficient energy-saving brushless dc motor brushless dc motor

Anhui anhui brushless dc motor co. , LTD. Is a professional manufacturer of motor manufacturers, in order to achieve the 2013 industrial development special action plan for energy saving and green notification requirements, do the national industrial power saving 1% (30 billion degrees), explore the development patterns and industrial energy saving and green, brushless dc motor has been in the effort to explore research and development in the south of anhui, efficient brushless dc motor for brushless dc motor product upgrading and industrial upgrading, at present, the company has a full range production level 2 efficiency brushless dc motor, small batch production level 1 efficiency brushless dc motor. In order to make the better use and understand users efficient brushless dc motor, the following efficient brushless dc motor in southern anhui province to do a simple introduction: refers to the efficient brushless dc motor with the general standard of brushless dc motor with high efficiency, it USES a new type of brushless dc motor design, new technology and new materials, by reducing the wastage of the electromagnetic energy, heat energy and mechanical energy, improve the efficiency of output, the efficiency should meet the requirement of energy efficiency level, at present in our country is to point to reach or exceed the allowable value of small and medium-sized three-phase asynchronous motor efficiency and energy efficiency grade (GB18613 -2012). In the standard energy-saving evaluation value of brushless dc motor. Mainly from the brushless dc motor control in the south of anhui five big loss, improve the efficiency of the brushless dc motor. One, reduce the loss of the stator of the motor stator loss: the main means of 1, increasing the cross-section of the stator slot, stator diameter under the same condition, the increase of the stator slot sectional area can reduce magnetic circuit area, increase tooth flux density; 2, increase the rate of the stator slot full trough, the effect of the low pressure small motor; 3, try to shorten the stator winding end minister degrees, loss of the stator winding end winding 1/4 to 1/2 of the total loss, reduce the winding end minister degrees, can improve the motor efficiency. Second, motor rotor loss loss mainly related to the rotor current and the rotor resistance, energy saving methods mainly include: 1, reduce the rotor current, it can be improved from two aspects of voltage and power factor brushless dc motor; 2, increase the rotor slot section area; 3, reduce the resistance of the rotor winding, use coarse wire and low resistance of the material. Three, iron loss, reduce the motor iron loss mainly adopts the following steps: 1, reduce the magnetic density, increase the length of the iron core is to reduce the magnetic flux density, but the motor with iron content increases; 2, reduce the thickness of the iron chip to reduce the loss of the induced current; 3, use the good permeability properties of cold rolled silicon steel sheet to reduce hysteresis losses; 4, using high-performance insulation coating iron chip; 5, heat treatment and manufacturing technology, iron chip processing after the serious influence the loss of the motor, the residual stress of silicon steel sheet processing, cutting direction, punching shear effect on the core loss is bigger. Four, stray loss to reduce stray main methods are: 1, heat treatment and finish machining are adopted to decrease the rotor surface short circuit; 2, through improvement on the design of the stator winding to reduce harmonic; 3, improve the rotor slot design and cooperate to reduce the harmonic, increased or, rotor tooth trough, trough the rotor design into chute; With magnetic slot mud or the place of traditional insulating magnetic slot wedge groove, the use of magnetic slot wedge mud filled motor stator core slot. Five, the wind friction loss of friction loss caused the main bearing and seal, mainly adopts the following steps: 1, reduce the size of the shaft, but need to meet the requirement of output torque and rotor dynamics; 2, using efficient bearings; 3, using efficient lubrication system and lubricant; 4, the use of advanced sealing technology. To sum up, the brushless dc motor in the south of anhui after adopting these measures, the whole series of brushless dc motor efficiency more than national standard requirements, with 11 kw brushless dc motor as an example, the level of efficiency than secondary efficiency can power saving a year more than 1500 degrees, the secondary efficiency than the efficiency of electricity saving of more than 3400 degrees, electricity per degree 0. 5 yuan, economic benefit is very considerable. This article by the brushless dc motor in the south of anhui anhui co. , LTD. Original, reproduced please indicate.