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大功率直流电机的好处是什么你知道吗?

来源:http://www.jnmcd.com 发布时间:2019-01-23 浏览:
  使用大功率直流电机的长处是电机启动容易,而且负载能力强,提速快,而且带相同负载的时候比小功率电机省电,可是无功功率会比较大,对电网会造成必定的资源占用糟蹋,但实际消耗的功率却很小。
  The advantage of using high-power DC motor is that it is easy to start, with strong load capacity, fast speed-up, and with the same load, it saves more power than low-power motor, but reactive power will be relatively large, which will cause certain waste of resources on the grid, but the actual power consumption is very small.
  尽管大功率直流电机会比小功率直流电机长处,可是并不是越大功率就越好,由于功率过高也会损坏电机的,归于超负荷,电机寿命大大缩减,电机的标称功率一般是极限功率的80%,过了极限功率一段时刻后,就会对电机造成不可逆转的危害。所以所挑选的直流电机功率应当在其合理的范围内使用。
  Although the high-power DC motor will be better than the low-power DC motor, but not the higher the power, because too high power will damage the motor, due to overload, motor life is greatly reduced, the nominal power of the motor is generally 80% of the ultimate power, after a period of time, it will cause irreversible harm to the motor. Therefore, the selected DC motor power should be used within its reasonable range.
  例如,有刷直流电机功率在6W-200W范围,而相对大功率直流电机是无刷直流电机,功率在20W-2000W范围。
  For example, the power of brushless DC motor is in the range of 6W-200W, while that of high-power DC motor is brushless DC motor, and the power is in the range of 20W-2000W.
  或许有人会问“为什么交流电动机的功率比直流电机的功率大呢?”
  Maybe someone will ask, "Why is the power of AC motor larger than that of DC motor?"
  这是由于日子中交流电电压大,电机功率P=U*I,U表示电压,I是电流,通常状况交流电和直流电流不会相差太大 大多电压差很多 比如日子用电压是220V 工业用电是380v 而直流电由于一般由储电设备(电池之类)供电,它的电压底子达不到那么高,一般几伏货、十几伏、几十伏这样子。
  This is due to the large AC voltage in the day, motor power P = U*I, U means voltage, I is current, usually AC and DC current will not differ too much, most of the voltage difference, for example, daily voltage is 220V industrial power is 380V and DC power is generally supplied by storage equipment (batteries and so on), its voltage base can not reach that high, generally several volts, dozens of volts. Dozens of volts.
山东微型电机
  如果与交流电机相对,大功率直流电机有那些优势呢?
  What are the advantages of high-power DC motors over AC motors?
  直流电机的长处:
  Advantages of DC motors:
  1、具有杰出的启动特性和调速特性
  1. Excellent start-up and speed regulation characteristics
  2、直流电机的转矩比较大
  2. The torque of DC motor is relatively large.
  3.修理比较便宜。
  3. Repair is cheaper.
  4.直流电机的直流相对于交流比较节能环保。
  4. DC motor is more energy-saving and environmentally friendly than AC.
  大功率直流电机具有杰出的启动特性和调速特性。因而,在调速功能要求较高的大型设备,比如轧钢机上都采用大功率直流电机拖动。
  High-power DC motor has excellent starting and speed regulation characteristics. Therefore, high-power DC motor is used to drive large-scale equipment with high speed regulation function, such as rolling mill.
  当然,直流电机也有一些不足之处。
  Of course, DC motors also have some shortcomings.
  如.
  If.
  直流电机制作比较贵,有碳刷,更换麻烦,这里的有碳刷是针对有刷直流电机而言,所以现阶段机电多向用户推荐无刷直流电机,由于无刷直流电机没有碳刷,故也没有相关接口,因而更干净,噪声更小,无需保护,使用寿命更长。
  DC motor production is more expensive, there are carbon brushes, replacement troubles, where carbon brushes are for brushless DC motor, so at this stage, electromechanical brushless DC motor is recommended to users. Because brushless DC motor has no carbon brushes, there is no relevant interface, so it is cleaner, less noise, no protection, and longer service life.
  以上信息是我们山东微型电机整理发布希望对大家有所帮助我们的网站是:http://www.jnmcd.com
  The above information is our Shandong micro-motor sorting and publishing hope to help you all on our website is: http://www.jnmcd.com!
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