718 successfully developed the first domestic high-power inverter

China Shipbuilding Heavy Industry News, October 15 The seven-eighth holding company , Perry Energy Saving Control Technology Co., Ltd. and Shenzhen Huichuan Co., Ltd. jointly developed the " common DC bus type high-power inverter " successfully tested in the bar production line of Hebei Mingfang Iron and Steel Co., Ltd. The performance and rolling effect meet the requirements of rolling steel production. This is the first time that the domestic high-power inverter is used in the full rolling mill, which has opened up a new field of domestic inverters and realized an important breakthrough in the national inverter industry.


Rolling steel high-power vector inverters have high requirements for high-power components and vector control functions, and have high technical and industry thresholds. The domestic market has been monopolized by foreign products such as Siemens and ABB . Although the AC rolling mill has many advantages, due to the investment cost of the AC variable frequency drive, it is not popularized in a large area, and the spare parts are expensive, the service is inconvenient, and the later operating cost is high, which limits the application of the AC drive in the rolling steel.


  In recent years, Perry Save Energy Co., has made remarkable achievements in the field of exchange of the rolling line, Siemens 6SE70 and S120 drive system are Hebei Province for the first time in the mill AC inverter system has accumulated a wealth of experience, beginning in 2010 Cooperate with Shenzhen Huichuan Co., Ltd. to develop a domestic common DC bus high-power inverter for rolling steel.

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