【作者】 杨军；

【导师】 孟祥忠； 亓学广；

【作者基本信息】 山东科技大学 ， 电力电子与电力传动， 2005， 硕士

【摘要】 在现代电力系统中,继电保护装置是保证电力系统安全运行和提高电能质量的重要工具,而且,电力系统的规模在不断扩大,用户对电能质量的要求也在不断提高。因此,对继电保护装置本身的要求也越来越高。 本文在对高压线路微机保护现状分析的基础上,设计了一套基于嵌入式系统的微机保护装置。文中,首先简要介绍了电力系统微机继电保护的发展历史、现状、技术特点及其发展方向。接着着重分析了以Samsung公司32位嵌入式微处理器S3C4510B为核心的嵌入式网络系统的软件硬件设计原理,给出了硬件原理图。其中在微机保护系统的硬件设计中,主要介绍了遥测电路、遥信电路、遥控电路等功能的实现。又详细论述了线路保护的配置及其工作原理,还对装置中采用的保护、测量算法进行了详细论述。对其中的一些算法进行了详细推导。在微机保护系统的软件设计中,主要介绍了利用介绍了模块化设计方法以及各个子程序的功能。设计并实现了网络层协议IP、ARP及可靠流式报文段传输协议TCP以及部颁CDT规约。 本文最后研究了微机保护装置的抗干扰措施并进行了误差分析。更多还原

【Abstract】 Relay protection is the most important tool to make the power system work safely and improves the quality of power energy. With the expansion of the power system and the consumer raising higher requirement for quality of power energy, the protection relay must be improved greatly to fulfill the higher requirement.Based on the analysis for microcomputer protection of high voltage line, the dissertation designs an adaptive microcomputer protection of high voltage line which is based on embedded systems. Firstly, This paper introduces the developing history, the actuality, and new developing aspect of microcomputer protection. Secondly, emphasized to analyze the software and hardware design principle of the embedded network system based on the company of Samsung 32 bit embedded microprocessor S3C4510B, putting out the software thought and the hardware principle diagram. In hardware designing of the microcomputer protection, it mainly presents the realization of telemetering circuit, teleindication circuit, and telecommand circuit. This paper particular discusses the configuring and work principle of line protection, analyzes algorithm of microcomputer protection. Thirdly, the protocols of network level such as IP, ARP, TCP are analyzed and implement. The Cyclic Digital Transmission更多还原