how to correctly choose servo motor and stepper motor?

ainly depending on the specific application,simply to determine:the nature of the load (such as

horizontal or vertical load,etc.),Torque,moment of inertia,rotational speed,precision,deceleration

requirements,such as upper control requirements (such as requirement for port interface www.dongfeng-motor.com and communication),main control mode is position,torque,or speed Way.Power supply is dc or ac power,or battery power,voltage range.Accordingly to determine motor and drives or the model of the controller.2,select the step motor or servo motor system? Actually,should choose what kind of motor pumps according to the specific application,each have its characteristics.? 3,how to stepper motor driver? According to the current of motor,with greater than or equal to the current drive.If you need or high precision,low vibration with segment type Drive.For large torque motor,high voltage type drive as far as possible,in order to obtain good performance at a high speed.rotor balancing machineAccording to the current of motor,with greater than or equal to the current driver Device.If you need or high precision,low vibration can be blending subdivision

drive.For large torque motor,high voltage type drive as far as possible,in order to obtain good

performance at a high speed.

Research and development in our country the first hydrogen fuel electric locomotive

China's first hydrogen fuel cell electric locomotive "blue sky" has run successfully in southwest jiaotong university railway private sidings. "Blue sky" by southwest jiaotong university after 4 years of independent research and development, realize the fuel cell power environment, the permanent magnet synchronous motor and so on many technological breakthroughs, car, service unit, and the future can be widely used in engineering work station shunting, and other areas of the rail transit. Hydrogen fuel cell power is clean, efficient, safe and energy conversion rate is high, higher than the power characteristics, known as the century's most promising "green energy". As the ac synchronous motor industrial www.dongfeng-motor.com application of new energy, high stability and "zero emissions" and other characteristics of hydrogen fuel electric locomotive, is currently in Europe and the United States attaches great importance to and vigorously develop. "Blue sky" with 150 kw fuel cell as a traction, 2 units of asynchronous motor 120 mw permanent magnet synchronous motor as a traction motor, the design speed of 65 km per hour, continuous traction for 20000 cows, traction weight 200 tons, light load continuous operation 24 hours a day filled with hydrogen. Next, southwest jiaotong university "national rail transportation electrification and automation engineering center" will rely on, to continue to study on the basis of the hydrogen fuel power and battery power of the hybrid electric locomotive, realization of industrialization as soon as possible.