Analysis of regulation indicators in schemes with subordinate regulation and modal control of electric drive of feeding mill for cold rolling tube

[摘要] The article is devoted to the issue of selection of the preferred structure of a positional electric drive of the feeding mill for a cold rolling tube by the criterion of minimum feed overshoot and, as a consequence, minimum polythickness of the tube. The cut-off frequency limit of a torque control loop is determined as 200 rad/s, for which the subordinate regulation is optimal. If the value of this parameter is high, then the modal control is preferred. This article consists of recommendations how to choose an actual control system according to processing speed opportunities of an electric drive torque control loop.

[发布机构] Department of Electric Drive, South Ural State University, Lenin Av. 76, Chelyabinsk; 454080, Russia^1

[效力级别] 电工学

[关键词] Drive torque;Feeding mills;Modal control;Polythickness;Processing speed;Subordinate regulation;Torque control loop