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本文首先讨论磁链开环控制系统中的走向偏差，然后分析复合矢量控制系统如何通过校正来消除定向偏差，达到正确的磁场走向控制。采用复合矢量控制原理的交-交变频调速装置已成功地应用于轧机主传动。文中还介绍了试验和现场的测试结果。
In this paper, we first discuss the deviation of the open-loop flux control system, and then analyze how the composite vector control system can eliminate the directional deviation through the calibration to achieve the correct control of the magnetic field. The principle of compound vector control of AC - AC variable speed device has been successfully applied to the mill main drive. The article also describes the test and field test results.