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本文讨论图1所示DDC(直接数字控制)转速调节系统。受控设备为轧钢机。在DDC调节装置中采用微型计算机,与通用模拟调节器相比,其精度高,成本仅为通用高精度调节器的三分之一。对控制系统的保
This article discusses the DDC (Direct Digital Control) speed regulation system shown in Figure 1. Controlled equipment for the rolling mill. The use of a microcomputer in a DDC regulating unit provides high accuracy compared to a general purpose analog regulator at a cost that is only one-third that of a general purpose high precision regulator. The protection of the control system