电线加塑系统中基于DSP的恒张力控制

Constant Tension Control for System of Electric Cable Plastic Wrapping Process Based on DSP

针对电线加塑生产过程中张力系统中存在的加塑不均匀、铜芯易被拉断或堆挤等问题,提出利用DSP对张力进行控制的方案。系统的硬件设计以TMS320LF2407A DSP芯片为主控单元,并辅以相应外围设备;软件设计在DSP集成开发环境CCS 2.2下进行,在控制策略上采用增量式PID控制方法。实验结果表明:以DSP为主控单元的控制器在电线加塑系统中的应用能够成功地通过DSP自带的PWM输出达到恒张力控制的目的,取得了很好的控制效果。

According to the problem such as plastic wrapping nonuniform, copper proning to pull and break or clump and squeeze of tension control system for electric cable plastic wrapping process, this paper presented a method of tension control in the system of electric cable plastic wrapping process using DSP. The design of hardware used TMS320LF2407A DSP as the main unit and use corresponding peripheral device as subsidiariness. The design of software used CCS 2. 2 intergration development environ- ment, increasing PID control algorithm was applied. The experimental result shows that the application of using DSP as the main control unit in the system of electric cable plastic wrapping process by the PWM output of DSP is successful to realize the constant tension control; and it shows excellent control effect.