Briefly describe the development of frequency converters

Inverter is the application of frequency conversion technology and microelectronics technology, by changing the frequency of motor power supply to control the AC motor power control equipment. The inverter is mainly composed of rectification (AC to DC), filtering, inverter (DC to AC), brake unit, drive unit, and detection unit micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by breaking 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 a lot of protection functions. , such as over-current, over-voltage, overload protection and so on. With the continuous improvement of industrial automation, inverters have also been widely used.

Recently, environmental protection has been attached great importance. It is enough to see the country’s determination for environmental governance, but it also restrains companies from focusing on economic development while expanding their scale. At the same time, they should also make energy saving and emission reduction and low carbon environmental protection the long-term development of the company. The core values ​​and preconditions. This is also the power source that ensures the sustainable and long-term development of the inverter, PLC and electric automation industry. However, behind the current domestic inverter industry and high-speed economic development, the overall size and strength of the electrical automation industry in the domestic market are uneven, and the scale, financial strength, technical strength, and industrial modules of many enterprises are seriously behind those of foreign brands. To a certain extent, it has become the biggest obstacle to the continuous high-growth economic model of China's inverter industry.

With the increasing demand for large-scale frequency conversion devices in China and the successful development of high-end frequency conversion products, the development of intelligent inverters has become an urgent task. Our basic performance of frequency conversion has not yet reached the appropriate level, and the market has not yet reached this level. Fortunately, we have seen some domestic inverter companies have conducted beneficial R&D practices. On the one hand, they digest foreign advanced technologies and on the other hand try to introduce their own frequency conversion standards.

Therefore, it is very important to strengthen the construction of new industrialization. The so-called new industrialization is a process of industrialization that does not sacrifice the cost of resources and the environment. To achieve this in the process of drive companies in the drive for industrial progress, we must rely on continuous technological investment to lead the advancement of science and technology in order to achieve maximum improvement. The utilization efficiency of resources and energy sources reduces the consumption of resources; at the same time, it is also more intelligent, economical, and environmentally friendly in the development trend of inverters. It has reached the grain configuration of available resources, reduced unnecessary waste, and implemented green. The low-carbon development strategy must also restrict all enterprises from reducing and reducing the discharge of wastes and pollutants during the process of industrialization, and build a resource-conserving and environment-friendly enterprise. This is something that all inverter companies should do, and it must also be done. of.