It is assumed that the generator excitation current is constant and the system voltage is also constant. Based on the power angle characteristics of the motor, we will discuss the process of adjusting the active load.
- According to the power angle characteristics of the motor, when the active load changes, the power factor and power angle of the motor will also change. Assuming that the excitation current of the generator and the system voltage remain unchanged, if the active load changes, it will cause the power angle of the motor to change, thus affecting the motor’s operation.
- In the process of adjusting the active load, the operating parameters of the motor need to be adjusted according to the power angle characteristics of the motor to ensure the stable operation of the motor. Specifically, the power factor and power angle of the motor can be controlled by adjusting the excitation current of the motor, the output voltage of the motor or adjusting the load to achieve a stable operation.
- It should be noted that in the process of adjusting the active load, parameters such as the rated power, rated voltage and rated current of the motor need to be considered to ensure the safe operation of the motor. Also, the characteristics of the load and the characteristics of the motor need to be considered to match in order to achieve the best operation.
When regulating the active load, the following points should be noted:
- The load power should not exceed the rated power of the generator, otherwise the generator may be overloaded, damaged or burned up.
- The change of load power should be smooth and avoid sudden changes or drastic fluctuations, otherwise it may affect the stable operation of the motor.
- The power factor of the load should match the power factor of the motor to ensure the efficiency and stability of the motor.
- Over-regulation should be avoided when adjusting the load to avoid affecting the life and performance of the motor.
- The characteristics of the load should be matched with the characteristics of the motor to achieve the best operation.
- Attention should be paid to safety when regulating the load to avoid accidents such as electric shock and fire.
In conclusion, when regulating the active load, the load should be adjusted reasonably according to the rated parameters and characteristics of the motor, as well as the characteristics and requirements of the load to ensure safe, stable and efficient operation of the motor.