【作者】 张国志；

【导师】 高金峰；

【作者基本信息】 郑州大学 ， 电工理论与新技术， 2007， 硕士

【摘要】 本论文基于相关性检测原理，结合现代数字信号处理技术，对电力系统中电力高频阻波器阻塞特性的测试方法进行了讨论和研究，并给出了软硬件实现。实验结果证实了该方法的有效性。主要工作有以下几个方面：1．阻波器测试方法的研究现状介绍与讨论，详细介绍了阻波器的各种测量方法，讨论了其优缺点，对现有的测试仪表的原理与性能进行了剖析。2．提出了一种基于相关原理的测试方法，该方法利用了一对正交信号检出被测信号的幅值和相位，理论精度仅取决于样本的容量。对该方法的抗噪声性能进行了着重分析，并给出了该方法的MATLAB仿真。仿真结果显示，该方法可达到1％的测量精度。3．以DSP芯片TMS320LF2407与A／D转换芯片THS12082为核心，GAL16V8作为外围元件片选，SPLC501显示模组作为输出，进行了系统硬件的设计，并对系统模拟部分进行了PSPICE仿真，仿真结果证实了模拟部分设计的可行性。4．利用德州仪器公司提供的针对TMS320LF240x系列DSP的C和汇编语言开发软件和北京瑞泰的仿真器，进行了系统软件的设计与调试。调试结果证实，本仪器的硬软件设计符合理论的预期，并可达到所期望的精度。5．给出实验结果，并对未来的研究进行展望。更多还原

【Abstract】 This thesis discusses and studies the blocking characteristic testing method of the power line trap based on correlative detecting principle and modern digital signal processing technology . Also it gives its hardware and software realization. Experiments approve the validity of the method . The main work of this paper is presented as follow:1. Introduce and discuss the research actuality of the power line trap testing methods. Introduce in detail various testing methods, discuss their advantages and shortcomings. Analyze the principle and capability of the current testing instruments.2. Present a new testing method based on the correlation principle . The method makes use of a pair of orthogonal signals to detect the amplitude and phase of the signal to be measured. Its accuracy in theory only depends on the sample quantity. Emphasize its anti-noise ability analysis, and giving its MATLAB simulation . Simulation result indicates that the accuracy of the method can achieve a level of 1%.3. Get DSP chip TMS320LF2407 and A/D conversion chip as its centre, GAL16V8 as the chip-select unit, SPLC501 display module as the output of the instrument, design the hardware system and give the PSPICE simulation of its analog part. Simulation result proves that the design of the analog section is feasible.4. Making use of the Texas Instruments provided C and assemble language developing software and Beijing Real-time Technology Company’s simulator, design and debug the software of the system. Adjustment result demonstrates that the hardware and software design of this instrument accord with the academic anticipation, and can achieve the anticipant precision.5. Give the result of the experiment, present the possible improvements in the future更多还原