8200-1302 WOODWARD controller governor

8200-1302

8200-1302 Advantages of Woodward governor over traditional governor

The traditional speed control system, although through the rotor serial resistance to achieve the speed control function (also has a level), but can not change the synchronous speed of the motor, resulting in the mechanical characteristics of the transmission system is very soft, resulting in speed stability and speed accuracy is very poor. More due to the change of load, the smoothness of the track, the dispersion of the motor parameters and so on lead to the torsion of the girder and the vibration of the electric control equipment on the road. It not only worsens the working environment of the operators, leading to operational errors, but also reduces the stability, reliability and service life of the entire equipment.
8200-1302 The governor must satisfy the stability condition

Adding damping to a regulated system is a way to improve the dynamic stability. Adjust the damping in the system and the friction in the high voltage frequency conversion governor, such as the friction in the motion pair, so that the governor has a certain insensitivity, that is, when the speed of the controlled shaft slightly deviates from the set value, the governor does not produce the corresponding action. The insensitivity of the mechanical governor is generally about 1% of its set value. The governor with high sensitivity will also produce undue adjustment action due to periodic speed fluctuations in the normal operation of the unit.