The background of frequency conversion technology is the wide demand of ac motor stepless speed regulation.
The application of traditional DC speed regulation technology is limited due to the large volume and high failure rate.
Since the 1960s, thyristors and their upgrades have been widely used in power electronic devices.
But its speed regulation performance is far from satisfying the need.
Since the 1970s, the research on pulse-width modulation variable voltage frequency conversion (WM-VVVF) speed regulation has made a breakthrough, and the improvement of microprocessor technology since the 1980s makes various optimization algorithms easy to be realized.
In the middle and late 1980s, the VVVF inverter technology of developed countries such as THE United States, Japan, Germany and The United Kingdom has been applied practically, and the commodity has been put into the market, and has been widely used.
The first frequency converters were probably developed with British patents bought by the Japanese.
But the United States and Germany, with their advantages in electronic components and electronics technology, quickly grabbed the market for high-end products.
After stepping into the 21st century, home-made frequency converters gradually rise and now occupy the high-end market gradually.
Shanghai and Shenzhen have become the forefront of the development of domestic frequency converters, and a number of well-known domestic frequency converters such as Huichuan frequency converters, Yingweiteng frequency converters, Anbangxin frequency converters, And Ourui Frequency converters have emerged.
Anbangxin inverter was founded in 1998, is one of the earliest inverter manufacturers in China.
For more than ten years, anbang Xin people with rich cultural deposits as the cornerstone, supporting the growth, the enterprise earlier passed the TUV organization ISO9000 quality system certification, was awarded "national high-tech enterprise", has been awarded "China frequency converter user satisfaction top ten Domestic brands".