数据硬实时交换技术在数字化保护装置中的实现

Implementation of a New Hardware Real-time Data Exchange Technique in Digital Protection

快速、高效、可靠地进行数据传输和处理是实现智能数字化保护装置的关键技术之一。结合数字化保护装置及其相关设备对数据传输处理的基本技术需求,提出了一种基于多现场可编程门阵列(FPGA)系统的用于数字化保护装置内部多板卡间数据共享的高速多通道同步串行数据硬实时交换技术。详细论述了该技术在数字化保护装置中的设计与实现,并指出了在硬件可靠性设计方面的具体措施。采用该技术的数字化保护设备已在工程中得到应用,并且此技术可以推广至其他数字化设备的应用中。

Fast,efficient,and reliable data transmission and processing are one of critical techniques to achieve smart digital relay protection.The fundamental technology requirements for data transmission of digital protection and related equipments are analyzed,and a new high-speed multi-channel synchronous serial hardware real-time exchange technique is proposed,which is based on multi field programmable gate array（FPGA） system for data sharing among CPU boards.Then the design and implementation of this technology in digital protection is introduced in detail.Meanwhile,the specific methods of hardware reliability design are presented.Finally,the digital protection equipment with this technique has been successfully applied in typical digital substation.In addition,this technique can be extended to applications of other digital equipment.