After the motor is separated from the three-phase AC power supply, a DC voltage is added to the stator winding, and the direct current is passed into the direct current, and the action of the rotor induced current and the static magnetic field is used to achieve the purpose of braking. Here is a small series with Senli motor to understand the next.
inThree-phase asynchronous motorDirect current passes through the stator windings to generate a fixed and constant magnetic field. At this point, the rotor cuts the magnetic field line in the direction of rotation, resulting in a braking torque.
Because this braking method is not like regenerative braking, the energy generated during braking is returned to the power grid, but the kinetic energy is consumed by the motor alone, so it is called energy consumption braking. And because the stator winding through the direct current to brake, so energy braking is also called DC injection braking.
Energy braking is solely dependentThree-phase asynchronous motorTo consume kinetic energy to achieve the purpose of stopping, so the braking effect and accuracy are not ideal. In some occasions requiring short braking time and good braking effect, this braking method is generally not used. Like lifting machinery, its operation is characterized by low motor speed, frequent start, stop and reverse rotation, and drag the lifting weight to run.
In order to achieve accurate and flexible control, the motor is often in the braking state, and the braking torque is required to be large. However, energy consumption braking can not meet the above requirements.
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Long axis torque motor products, suitable for winding and winding scenarios, can be customized for different industry scenarios, to meet the requirements of use. This product produced by Senli has the characteristics of reasonable structure, high efficiency, good characteristics and long service life.
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Senli motor products are used180°High temperature resistance all copper coil material, torque motor products can be used with different rotors (ordinary rotors/Steel rotor), rotor of different motor characteristics are different, we from the shell, shaft, rotor, stator are produced by the independent, all products are the use of professional product quality supervision and testing equipment full inspection factory, can provide testing reports.