(1) The variable frequency speed regulation system has low self-consumption and high work efficiency. (2) The motor operates at a low slip rate, reducing rotor wear. (3) It can achieve soft start and braking functions, minimizing the impact of starting current. When using variable frequency power supply for speed regulation, it is necessary to consider factors such as process requirements, cost-saving benefits, and return on investment. If only considering process requirements and cost-saving benefits, the following situations are more advantageous for choosing variable frequency speed regulation: According to process requirements, production lines or individual equipment need to adjust the motor speed programmatically or according to specifications. For example, in packaging machine conveyor systems, depending on different types of products, the system transmission speed needs to be changed. Using variable frequency speed regulation can simplify the structure of the speed regulation control system, ensure accurate control, and facilitate program control. Aviation ground power 2, 36V aviation power 1, 400Hz variable frequency power supply 7, 115/200V power supply 2, 27V DC power supply 5, 400Hz power supply 12, aviation power
Replacing mechanical speed control with variable frequency speed control. For example, in machine tools, this not only eliminates the complex gear transmission box but also improves accuracy and meets program control requirements. Replacing gate or plate adjustments for flow control is suitable for fans, pumps, compressors, etc. For instance, the water pumps, blowers, and induced draft fans on boilers have implemented variable frequency speed control. This not only eliminates servomotor amplifiers, electric operators, electric actuators, and water valves (or baffle plates), but also enables the entire boiler control system to achieve rapid dynamic response, high control accuracy, and stability.
