Domestic inverter or welcome industrial change

Entering the 1980s, the speed of global inverter technology change has accelerated, and mature frequency products have been widely used in various sectors of the national economy. As China becomes a global factory, the rapid development of manufacturing provides more and more market space for inverter products. However, to date, the domestic inverter market can be said to be the world of foreigners, Japanese and European and American divisions. 80% of the market share, but in recent years, Taiwan's frequency conversion brand also has some strong performance, and domestic brands are still generally weak.

With the continuous improvement of the technical field, the thyristors of the inverter itself have also been innovated from generation to generation. China's inverter industry has also ushered in a revolution in the course of catching up with the development of similar foreign products.

In the past few decades, power electronics devices have gone from the original SCR (thyristors), GTOs (gate turn-off thyristors), through BJTs (bipolar power transistors), MOSFETs (metal oxide field effect transistors), and SITs. Static-induction transistor, SITH (static induction thyristor), MGT (MOS control transistor), MCT (MOS control thyristor), developed to today's IGBT (insulated gate bipolar transistor), HVIGBT (high-voltage insulated gate bipolar thyristor), The renewal of the devices has led to a wider range of applications for frequency converters and the rapid expansion of the market size.

However, domestic frequency conversion has been behind the foreign "10-15 years", in recent years has been to catch up, not only in technology has made great breakthroughs, the development of a number of domestic frequency conversion is also in line with international standards, with a considerable amount of corporate competition force. The domestic inverter manufacturers, such as Inventronics, Easy Energy, Anbangxin, Zhiguang Electric, etc., have begun to occupy more and more market shares thanks to their price advantages. However, it is undeniably conclusively determining whether the domestically produced frequency conversion has the core factor of competitiveness or technical level.

Over the years, the National Development and Reform Commission, in conjunction with the relevant state departments, has been giving priority support to the frequency conversion technology development, technological transformation, etc., organized the evaluation of frequency conversion speed regulation technology recommendations, and at the same time encourage relevant units to catch development and grasp demonstration engineering projects. Based on this, the domestic frequency control technology has been a certain development and application. For China, the process of industrialization is not over yet. The high proportion of high-energy-consuming industries will continue to promote the sustained and rapid growth of China’s energy demand. The industry is highly energy-intensive, and the country’s energy-saving and emission-reduction policies have also enabled domestic inverter companies to Multiple opportunities.

Domestic frequency conversion, the market is expanding, the technology is progressing, and talents are increasing. With the increase of state support and the increase of private enterprise investment, domestic frequency conversion will surely usher in its own “spring”. However, don't be eager to be happy. In order to make "spring" more long-lasting, it is necessary to make technology more advanced, that is, to constantly surpass technology. Only in this way can we ensure that domestic frequency conversion is achieved in variable frequency green forests. What makes us feel gratified is that domestic frequency conversion companies represented by Zhiguang are constantly increasing input in human, material, and financial resources. I think that in the next few years, domestic frequency conversion will become the world's frequency conversion.