冷连轧机是供冷轧铝板带、铜板带等带材之用，在工业现代化进程中，钢铁工业一直是基础产业，地位重要，而冷板带的生产又是钢铁工业发展中的重要方向之一。冷连轧机即生产板带的生产设备，其性能的好坏直接决定板带的质量，进而影响我国工业化 ，所以冷连轧机的发展十分重要。冷连轧机控制系统的核心就是电机的控制，可将其视为一个复杂的电力拖动系统。-Cold tandem mill for cold rolling aluminum strip is, copper belt strip with, in industrial modernization process, the iron and steel industry has been the basic industry, an important position, while the cold strip production is one of the important direction in the development of iron and steel industry. Cold rolling mill production production equipment with the board, its performance directly determines the quality of strip, and the impact of China s industrialization, so it is very important for the development of cold rolling mill. Cold tandem mill control system is the core of the motor control, which can be regarded as a complex electric drive system.