基于虚拟仪器的阻抗继电器设计

介绍了虚拟仪器的概念及国内外研究现状，以图形化编程软件LabVIEW为软件开发平台，开发了虚拟阻抗继电器系统。实现的虚拟圆特性继电器和虚拟四边形特性继电器，经实验测试满足要求。在降低设备成本的同时，该系统还具有友好的人机界面，并且方便进行维护和实现功能扩充。

Design of Impedance Relay Based on Virtual Instruments

The concept of virtual instruments and the research current situation at home and abroad were introduced in this paper, the system of virtual impedance relay based on LabVIEW graphical programming environment was developed. The roundity characteristic of virtual relay and quadrangle characteristic of virtual relay were designed. The experiment results showed that it could satisfy the request. Reducing the cost of the equipment, the system can also provide a friendly human-machine interface. In addition, it is convenient for the system maintenance and function expansion.