2. Development and application analysis of motor frequency conversion control
In the initial time, China's motor frequency was fixed, and the motor could only output a fixed power, a voltage. Therefore, the driving frequency of the motor at the time of operation is completely unchanged. However, the driving frequency required for the load is constantly changing. In order to meet the driving frequency required by the load, the rated driving frequency of the motor is generally greater than the driving frequency required by the load. Although this can ensure that the motor provides sufficient driving frequency to ensure the normal operation of the motor, a large part of the driving frequency will be wasted, which causes a large amount of electric energy to be wasted and cannot be effectively utilized. Does not meet the strategic requirements of China's sustainable development.
In order to save power and make full use of electric power, motor frequency conversion control technology has been developed. The motor frequency conversion control can change the power and voltage of the motor output according to the driving frequency required by the load, so as to ensure that no extra drive is driven. Waste, a good increase in the utilization of electrical energy, fully in line with China's energy-saving emission reduction requirements. As China's requirements for energy conservation and emission reduction are getting higher and higher, the development and research of frequency conversion energy-saving control systems are constantly improving, and have been better promoted and applied in more and more places.
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