摘要
采用PLC等控制技术,构成完整的模拟闭环控制系统,并通过编写PLC程序自行研发出先进模糊PID算法,实现对温度控制中大滞后对象的有效控制,采用易控组态软件设计上位监控界面,并实现了装置的远程控制。在此基础上,结合单片机、CPLD技术设计了具有自定义I/O口的多通道模拟I/O模块,并以QXLPC-Ⅲ过程控制实验装置为例,将普通的过程实验装置改造成为一个技术先进的综合性的过程控制系统,优化了控制效果,使整套过程控制实验装置的性价比和应用价值得以提升。
In view of the fact that the current process control devices in university laboratories are not advanced, the design proposal of secondary development was proposed in this paper. Advanced technologies such as PLC control technology were adopted to constitute the analog closed-loop control system, and develop advanced fuzzy-PID algorithm, which realized effective control of the big delay in temperature control. A monitoring interface was designed by using configuration software INSPEC, which achieved remote monitoring of the device. Based on tile above designs, by combining MCU technology with CPLD technology, a multi-channel analog I/O module was designed, which can customize the I/O interface. Then, by taking the QXLPC-III process control experimental device as an example, the ordinary process control experimental device is transformed into an advanced and synthetic process control system, which has optimized the control effect. The secondary development of the device saved cost and improved the value of the experimental device.
出处
《实验室研究与探索》
CAS
北大核心
2012年第9期32-35,56,共5页
Research and Exploration In Laboratory
基金
四川省精品课程建设项目(XHJP060102)
关键词
可编程逻辑控制器
过程控制实验装置
模糊PID
复杂可编程逻辑器件
programmable logic controller （PLC）
programmable logic device （CPLD） process control experimental device
fuzzy-PID
complex
