Does the DC motor work the same as the AC motor?
DC motor has fast response, large starting torque and rotational speed from zero to the rated speed with rated torque available performance, but the advantages of DC motor is a DC motor because of its disadvantages, to generate performance under rated load torque is constant, the armature magnetic field and the rotor flux to maintain constant 90 degrees, this by brush and commutator. Carbon brush and commutator motor rotates in sparks, so in addition to cause toner component damage, use is restricted.
AC motor without carbon brush and commutator, maintenance free, strong and wide application, but the characteristics to achieve performance equivalent to DC motor to be used to achieve complex control technology. AC motor is divided into two categories: asynchronous motor and synchronous motor. Asynchronous motor is divided into single-phase asynchronous motor, two-phase asynchronous motor and three-phase asynchronous motor according to the number of stator phases. The three-phase asynchronous motor is simple in structure, reliable in operation and low in cost.
1KW DC motor with 1KW AC motor is not the same, 1000 Watt DC motor will be a lot of small volume, although the power is 1000 watts, DC motor torque is relatively large, speed control is relatively easy. The DC motor is more powerful against overload, but the price is more expensive.1KW DC motor can bring a large generator, 900 watt generator, the actual output power of power generation is at most 800 watts. If you want to get the power of different types, using a motor driven generator is one of the most stupid way to use the lowest efficiency, power supply module, the highest efficiency, fast response, easy to adjust the noise to a minimum, the price is the cheapest.
