Micctech frequency converter

Frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.

The Micctech frequency converter is mainly composed of rectifier (AC to DC), filtering, inverter (DC to AC), braking unit, drive unit, detection unit and micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by the opening and closing of the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions. , Such as overcurrent, overvoltage, overload protection and so on. With the continuous improvement of industrial automation, frequency converters have also been widely used.

The energy saving of the frequency converter is mainly manifested in the application of fans and water pumps. After the fan and pump load adopts frequency conversion speed regulation, the power saving rate is 20% to 60%. This is because the actual power consumption of the fan and pump load is basically proportional to the third power of the speed. When the average flow rate required by the user is small, the fan and pump adopt frequency conversion speed regulation to reduce the speed, and the energy-saving effect is very obvious. However, traditional fans and pumps use baffles and valves for flow adjustment, the motor speed is basically the same, and the power consumption does not change much. According to statistics, the electricity consumption of fans and pump motors accounted for 31% of the national electricity consumption and 50% of the industrial electricity consumption. It is very important to use variable frequency speed regulation device on this kind of load. At present, the more successful applications include constant pressure water supply, various types of fans, central air conditioners and frequency conversion speed regulation of hydraulic pumps.