可编程逻辑器件在数字式保护中的应用与探讨

在简要介绍强编程逻辑器件（FPGA／CPLD）的基本原理和结构特点的基础上，分析了FPGA／CPLD具备的高集成度，高速度，资源丰度，设计灵活，保密性好等技术优势，并结合数字式保护的研发实践，阐述了FPGA／CPLD在数字式保护中的多种应用，取得了提高保护硬件密度，改善电气稳定性，简化电路设计，缩短开发周期和加强技术保密等良好效果。不基于FPGA／CPLD的数字式保护硬件设计，以及FPGA／CPLD实际使用中的可靠性，工艺要求，性价比，编程方式，设计编辑器选择及优化仿真等相关问题进行了分析与探讨。

Application and research of programmable logic device in digital protection

Based on the brief introduction of the basic principle and structure of the programmable logic device FPGA(Field Programmable Gate Array)/CPLD(Complex Programmable Logic Device),its technical advantages of high integration,high speed,rich resource,flexible design and excellent security are analyzed.Considering the research and development of digital protections,the various applications of FPGA/CPLD to digital protection are presented,which increase HW density,im prove electrical stability of equip ment ,simplify circuit design,shorten developing period and strengthen tech nical security.The FPGA/CPLD-based hardware design of digital protection and the rele vant aspects in the application of FPGA/CPLD are detailed,such as reliability,technique,performance-price ratio,programming,selection of design edi tor,op timization,simulation and so on.