TMS320VC5509故障录波系统的研究

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摘要：故障录波器是电力系统进行状态分析的重要设备之一。依据故障录波器记录下来的数据，分析电力系统正常及故障状态下的运行规律，对工作人员进行预防、处理故障等有非常重要的意义。

本论文首先介绍了故障录波器的功能和发展现状，分析了现有录波器的一些缺点。针对采集变电所二次侧直流电源故障信号的需要，提出一种高速采集故障信号的故障录波器方案。在明确故障录波器基本要求的基础之上，采用分层的思想方法上设计了故障录波器的总体方案：本文的高速数据采集装置采用TI公司的TMS320VC5509作为控制器，充分利用其高速运算和强大的数据处理能力，并采用模块化的思想，提出了模拟信号调理隔离电路、DSP与 A/D 转换器的硬件接口电路、DSP 与数据存储器的接口电路、DSP 电源电路、通信接口电路的设计方案。55430

毕业论文关键词：故障录波器，TMS320VC5509，高速数据采集，模块化

Abstract：The fault recorder is one of important equipments which provide data to analyze lots of power system states. It has very important value for workers to analyze the system condition under the normal and fault states and treat faults according to the data gathered by the fault recorder.

Firstly, this paper presents the functions and developing status of fault recorder,then analysis disadvantages and developing trend of recorders . Because of the need of gathering the fault signal on DC power supply at the transformer’s substation side, a fault recorder that is used to gather the fault signal is designed highly.First, the blue print is designed using the thinking of muti-hierarchy which means that there is a data acquisition equipment at the bottom. The top and the bottom communicate in serial model. This system uses TMS320VC5509 of the TI company as the controller of the data acquisition equipment. Related hardware is devised based on its high speed of computing and strong ability of the data processing, and is designed by the thinking of modularization.Put forward design schemies of the analog signal isolating circuit, DSP and A/D converter interface circuit, DSP and data storage interface circuit,power supply circuit, communication interface circuit.

Key words: fault wave recorder, TMS320VC5509, high speed data acquisition, modularization

1 绪论 4

1.1 故障录波器功能概述 4

1.2 故障录波器的发展历史和存在的问题 5

1.3 本论文主要研究内容 6

2 系统总体设计方案 6

2.1 电力系统常见故障分析及故障诊断方法概述 6

2.2 故障录波器的基本要求 7

2.3 录波器的硬件结构 7

2.3 本章小结 9

3 高速数据采集模块的设计 9

3.1 TMS320VC5509处理器介绍 9

3.2 数据采集模块的硬件实现 12

3.3 本章小结 17

结论 18

参考文献 19

致谢 20

1 绪论

电力系统中，由于人为原因及设备老化自然灾害，电力系统会发生各种故障。它们对社会生产、民众生活、国民经济等都会造成巨大的影响，我们必须想方设法避免和尽快正确处理这些问题。分析、研究这些故障发生发展的规律，并采取相应的处理措施，可以有效地减少它们的危害。当电力系统出现事故时，故障录波器记录数据是分析事故起因、继电保护装置的动作情况和事故发展过程的重要依据。