This paper has a study on linear motor zero transmission feed unit in NC operation, system. It analyzes the importance of using PID parameters adjust, gives a control algorithm of linear motor PID based on PMAC and tests PID control performance. 研究了数控加工系统中的直线电机零传动进给单元,在此基础上分析了采用PID参数调节的重要性,建立了基于PMAC基础上的直线电机PID的控制算法,并通过PID控制性能加以验证。
With the description of the structure and working principle of the turning for the feed pump turbines in Zhuhai Power Station, this paper analyzes the causation of the turning malfunction during the operation of Feed Pump Turbine B of Unit 2. 为此,在对珠海发电厂汽轮机盘车结构和工作原理介绍的基础上,探讨了2号机组B汽动给水泵汽轮机运行时盘车异常的原因,并提出了改进建议。