Inverter Technology Development and Demand Analysis

With the rapid development of power electronic technology, computer technology and automatic control technology, electric drive technology is facing a new revolution. In the field of electrical drives, frequency conversion speed control systems have become mainstream because of their high efficiency and good performance. Benefited from the strategy of energy conservation, emission reduction, and environmental protection, the inverter industry has become one of the industries with huge market potential in the next few years as an important equipment for variable frequency speed control.

New Trends in Inverter Technology

The development of information technology has led to the development of frequency conversion technology. Frequency conversion speed control has characteristics such as high speed control accuracy, low start-up energy consumption, small footprint, advanced technology, rich functions, easy operation, high versatility, and easy formation of closed-loop control. It is considered to be the most ideal speed regulation program and represents the development direction of electric drive.

High-voltage and high-power inverters have become a hot spot for competition among major electric companies in the world because of their great technical development difficulties in electromagnetic compatibility, electromagnetic radiation, and series technology. At present, many domestic inverter manufacturers have invested a lot of manpower and material resources in the field of high-voltage inverters, and strive to occupy the commanding heights in the current frequency converter technology. In spite of this, the core components of the inverter have always depended on imports, which has become the bottleneck restricting the development of domestic inverters.

In response to challenges from different application areas, inverters are constantly being updated and the products are becoming increasingly diverse. In general, the new generation of inverters should have the following features: First, all-digital, full-featured, capable of compensating for load changes, especially with distributed communication and networking functions and programmable functions. The second is a simple or industry-specific inverter and the realization of mechatronics and miniaturization. The third is networking and systematization. Through the network connection, production costs are reduced. Through fieldbus modules, different types of inverters are configured with the same programming language and communication protocol.

In addition, with the advent of new high-voltage power electronic devices, high-voltage and medium-voltage inverters have also made considerable progress. In the next few years, new inverters such as matrix inverters and green inverters will be available soon.

The current status of the inverter <br> <br> domestic inverter manufacturers on the domestic market has more than 300. As China's inverter supporting industry's strength is relatively weak, domestic brands have a certain gap with foreign brands in terms of processing and manufacturing, industrial design and other technical aspects. At present, the share of foreign brands in the domestic inverter market is about 70%. Local inverter companies mainly produce V/F control products. For vector inverters with superior performance and high technical content, most of the products developed by domestic companies are also Not mature enough.

Therefore, China's inverter market is still price-oriented, but with the rise of local brands, the market share of domestic-funded inverter companies is gradually expanding, especially in recent years, the trend of accelerating the substitution of foreign brands. Although it does not have the strength to compete with top international brands, it has shown certain competitive advantages in some segmented products and markets, and its market share has gradually expanded.

As a whole, the competition in China's inverter industry is increasingly fierce. As the market is extremely attractive, not only has the market formed a certain scale, but also its potential capacity is very impressive, and it has continuously attracted new players in the industry.

With the advancement of domestic manufacturers' technological progress and quality stability, coupled with the advantages of services and prices, it is expected that the market situation of high-end products monopolized by foreign manufacturers in the next few years will change.

Drive market development prospects <br> <br> inverter technology, the inverter unprecedented promotion and application in the field of electricity, cement, elevator, mining, metallurgy, transportation and other modern.

According to statistics from the inverter branch of the China Industrial Electrical Appliance Association, in recent years, China's inverter market needs about 10 billion yuan in market space each year. Moreover, with the advancement and diversification of user needs, the functions of domestic inverter products are constantly improving and increasing, and the degree of integration and systemization are also getting higher and higher, and some special inverter products have emerged, which are all in our country. The foundation for further expansion of the inverter market has been laid.

The data shows that in recent years, China's inverter market has maintained a growth rate of 12% to 15%, and it is expected that at least in the next five years, the inverter market demand will still maintain a growth rate of more than 10%. And after 10 years, the inverter market will be saturated.

The total potential market space of China's converters is approximately 120 billion to 180 billion yuan, of which atmospheric frequency inverters account for about 60% of the market share. The number of medium and high voltage inverters is relatively small, but the power of a single inverter is large. The price is high, only about 40% of the market. At present, there are at least 180 million kilowatts of electric motors with variable load and potential for energy conservation in China, which provides a very large market for the application of frequency converters.