一种航空直流固态功率控制器的设计  

A Design of DC Solid-State Power Controller

作　　者：谢拴勤[1] 叶留义[1] 薛寒[1] 刘成[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《计算机测量与控制》2010年第7期1553-1556,共4页Computer Measurement &Control

摘　　要：提出了一种基于嵌入式实时操作系统μC/OS-Ⅱ和CPLD的SSPC设计方案。对整个系统的结构进行了分析,结合分析给出了系统硬件和软件设计方案。硬件设计部分给出了系统的硬件结构原理图,分析了系统性能和各部分功能,并给出了子系统的设计;软件部分根据μC/OS-Ⅱ系统建立了任务结构框图和系统流程,给出了I2T反时限保护的一种算法,并通过对CPLD的编程实现SSPC的短路保护功能;实验证明这种设计方案具有硬件电路设计简单、实时性好、可靠性高和智能化水平高的优点,符合航空直流固态功率控制器的设计要求。A designed scheme of solid--state power controller （SSPC） is bringed forward based on the real--time embedded operating system μC/OS-Ⅱ and CPLD. A. analysis will be made about the whole system structure, and the software and hardware design will be giv- en based on the analysis. Hardware design gives the system＇ s hardware schematics, analysis of system performance and functions of every parts, and the design of subsystems. Software design gives the mission structure and system flow diagram and a I2T inverse time--lag cur- rent protection algorithm. Then the design realizes the function of short-- circuit protection through CPLD program. The related experi- ments prove that this designed scheme has many advantages, includes the simple circuit design, fast time response high reliability, high Intelligence. It meets the requirements of SSPC.

关 键 词：SSPC μC/OS-Ⅱ CPLD 反时限保护 

分 类 号：TN407[电子电信—微电子学与固体电子学]