虚拟仿真技术在现代电气控制教学中的应用

Application of virtual simulation technology in modern electrical control teaching

为解决现代电气控制技术实验装置成本高、结构复杂、很难满足学生课外自学需求的问题,研究利用虚拟仿真技术搭建现代电气控制虚拟仿真实验平台,探索虚拟仿真和传统硬件相结合的实验教学方法。提出利用组态软件模拟PLC控制对象,结合PLC仿真软件及NetToPLCsim软件,构建PLC虚拟仿真教学系统。以工业控制领域典型的物料混合控制系统作为教学案例,给出了虚拟仿真实验系统开发流程。将设计的虚拟仿真系统应用于实际教学,实际运行结果表明:虚拟系统无需实际物理控制对象便可实现对PLC控制程序的调试和仿真运行,节约了设备成本,激发学生学习兴趣,提高了实验效率与实验效果。

Modern electrical control technology experimental device has the disadvantages of high cost and complex structure and is difficult to meet the needs of the students’extracurricular self-study.Aiming at the above problems,a new method of using virtual simulation technology to build the modern electrical control virtual simulation experimental platform is proposed,teaching method of combining virtual simulation with traditional hardware is researched.A method of using configuration software to simulate the PLC control object,combining with PLC simulation and NetToPLCsim software,to build PLC virtual simulation teaching system is proposed.Taking the typical material mixing control system in the industrial control as a teaching case,the development flow of the virtual simulation experiment system is presented.The virtual simulation system is applied to practical teaching.Actual operation results show that the virtual system can realize the debugging and simulation operation of the PLC control pro?gram without the actual physical control object,saving the cost of the equipment,stimulating the interest in learning,improving the efficiency of the experiment and the effect of the experiment.