无刷直驱型圆刀裁布机的控制系统设计

Design of BLDCM Control System for Direct-Drive Discal Knife Cutter

针对服装产业的发展需求,采用无刷直流电机(BLDCM)驱动技术研制出一种直驱型圆刀裁布机的控制系统,实现了综合性能的提升。设计由单片机及外围电路、功率及驱动电路、霍尔位置检测电路、操控电路和辅助电源组成的数字控制器硬件电路,根据直驱结构的BLDCM特性和整个裁布机的工作特点,分析设计转速闭环控制策略。通过负载测试试验证明,调速性能精确高效;通过堵转测试试验证明,堵转时的过流保护迅速可靠。

Aiming at the development demand of garment industry,the control system of the direct-drive discal knife cutter was developed by using brushless DC motor(BLDCM)drive technology to improve the comprehensive performance.The total hardware circuit of the digital controller was composed of the single-chip microcomputer and peripheral circuit,power and drive circuit,Hall position detection circuit,operating circuit and auxiliary power supply.The speed closed-loop control strategy and control program were designed according the performance of direct-drive BLDCM and the working characteristics of discal knife cutter.The load test experiment proved that the speed regulation performance was accurate and efficient.The blocking test proved that the overcurrent protection during stalling was fast and reliable.