【作者】 周新征；

【导师】 曾春年；

【作者基本信息】 武汉理工大学 ， 控制理论与控制工程， 2004， 硕士

【摘要】 互感器校验仪是电力和计量部门广泛使用的检测仪器。目前，我国所使用的互感器校验仪大多数仍为60—70年代发展起来的电工型，少数数值型和智能型产品也因稳定性差、示值缓慢、自动化程度低等原因，未能被广大用户所接受。因此，开发一种精度适当、自动化程度高、性能稳定的多功能校验仪就有着广泛的前景。 本文针对国内市场目前普遍使用的老式互感器校验仪的现状，提出了智能型互感器校验的研制思想，并详细讲述了其理论依据和实现过程，提出了切实可行的方案：基于测差测量原理，进行基于DSP和MCU双CPU架构、并采用高速A/D的硬件电路设计，并在此基础上采用快速傅立叶变换和准同步采样算法，并完成相关的软件算法框图设计，对互感器校验仪的智能化发展进行了有益的探索，取得了具有实用意义的成果。 全文共分五章。第一章简要介绍互感器校验仪的发展和现状，提出本文研究意义和研究内容。第二章简要介绍DSP技术以及DSP在电力系统中的应用。第三章介绍互感器的基本原理和互感器校验仪的校验原理。第四章在前述基础上，设计互感器校验仪的硬件电路，并给出详细研究思路和主要方法。第五章介绍了交流采样的一些方法，采用快速傅立叶变换和准同步采样技术，提高精度，并给出系统软件框架。更多还原

【Abstract】 Transformer Calibrator is widely used by the electric power department and the measure department. However, the Transformer Calibrators used in our country now are behind the times, most of them were developed in 1960-1970 years, although there are some digital and intelligent products , they are not very satisfied for the many reasons, such as the stability is not good, the display of digital is slow, the degree of automation is low ,.and so on. So to develop a new type of Transformer Calibrator which has the high precision and the high degree of automation is significative .For the outdated Transformer Calibrator is widely used, this paper analyzed the theory of previous calibrators and proposed an idea of designing a new type of intelligent calibrator, based on the theory of measure the difference ,adopt the project of DSP and MCU structure , also use high speed A/D electric chip .After the design of hardware circuit diagram , adopt the theory of FFT and Quasi-Synchronous Sampling Method to reach the demand of precision. This paper discuss the intelligent development of Transformer Calibrator ,achieve some success in the study.There are five chapters in this paper. The first one introduces the development of Transformer Calibrator , put forward the significance and content of this paper. The second chapter introduces DSP technique and the use of it in electric system. The third chapter introduces the theory of transformer and the theory of Transformer Calibrator. The fourth chapter introduces the hardware design of Transformer and its ideas .The fifth chapter introduces the software design and its methods.更多还原