China South Locomotive inverter "test water" metallurgical mill successfully
China Education Equipment Purchasing Network News: Recently, the first qualified steel belt was rolled by a test rolling mill equipped with an industrial drive inverter independently developed and produced by China South Locomotive Corporation Zhuzhou, which is also a domestic independent brand inverter in high-end industrial drives- The first successful application in the main drive field of rolling mills.
The main drive field of metallurgical rolling mills has extremely strict requirements on the control accuracy, response speed, reliability and stability of the drive inverter, and represents the highest-end application of industrial drive inverters. Its core technology and key equipment have long been used by a few foreign multinational companies. monopoly.
The load of the main drive of the metallurgical rolling mill is abruptly abrupt, and the system control performance is required to not significantly fluctuate when the impact of 1 to 2 times the rated load impacts and recovers quickly within the second level. The various technical indicators are extremely demanding.
The CSR Zhuzhou Institute of Industrial Transmission Department organized a lean force to solve many key technical problems such as the dynamic droop of the frequency converter under the sudden impact of the load when biting the steel, and mastered the key technology of the main transmission system of the rolling mill. The dynamic droop index reached 0.3 % s, which is equivalent to the technical level of similar products from Siemens, has laid a solid foundation for the application in the metallurgical transmission field where CSR Zhuzhou is located.
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