基于嵌入式系统的电能质量检测仪的研究与实现

发布时间：2018-02-26 05:32

本文关键词： 嵌入式系统电能质量 DSP ARM Windows CE　出处：《华北电力大学》2012年硕士论文　论文类型：学位论文

【摘要】：针对当前电网电能质量检测的实际问题,借鉴已有的检测理论和实践成果,依据我国制定的电能质量检测仪器通用要求,结合嵌入式系统在电能质量检测中的应用,最终设计并研制了基于嵌入式DSP和ARM处理器双CPU为核心,辅以其它必要的嵌入式外围电路而组成的电能质量检测仪。利用DSP芯片强大的数字运算能力,完成基本电力参数和各项电能指标的计算和分析。利用ARM9系列微处理器速度快、高性能、外围接口丰富和方便移植嵌入式实时操作系统等优势,实现系统多任务调度,数据显示和存储等功能。检测仪的硬件电路设计包括信号采集运算的DSP部分和数据显示存储的ARM部分。主要有数据采集模块电路设计、高速A/D转换电路设计、DSP最小系统设计、ARM最小系统和外围电路以及两个处理器之间数据传输模块双口RAM的电路设计。检测仪的软件设计与编写同样包括两个部分,在DSP子系统下,利用CSS3.1集成开发环境,完成数据采集与运算程序的编写。在ARM子系统下,实现WindowsCE5.0嵌入式操作系统的定制与安装,并在Windows CE5.0操作系统的基础上,利用VS2005开发工具设计实现了电能质量检测的主控软件。最后,通过实验室三相电能功率标准源的实际测试,得到电能质量检测仪的实测数据,分析其测量误差并通过软硬件方式进行调试和修正。实验表明,本文研制的电能质量检测仪,其电力参数和各项电能质量指标的检测基本达到了预期准确度。
[Abstract]:In view of the practical problems of power quality detection in power grid at present, based on the existing testing theory and practical results, according to the general requirements of power quality testing instruments formulated in our country, combined with the application of embedded system in power quality detection, Finally, a power quality detector based on embedded DSP and dual CPU of ARM processor is designed and developed, which is composed of other necessary embedded peripheral circuits, and makes use of the powerful digital computing ability of DSP chip. Based on the advantages of ARM9 series microprocessors, such as high speed, high performance, rich peripheral interfaces and convenient transplanting of embedded real-time operating system, the multitask scheduling of the system can be realized. Data display and storage and other functions. The hardware circuit design of the detector includes the DSP part of signal acquisition and the ARM part of data display and storage. Design of High Speed A / D conversion Circuit the minimum system Design of DSP the circuit design of arm minimum system and peripheral circuit as well as the dual-port RAM of data transmission module between two processors the software design and writing of the detector also includes two parts under the DSP subsystem. Using the CSS3.1 integrated development environment, the data acquisition and operation program are compiled. Under the ARM subsystem, the WindowsCE5.0 embedded operating system can be customized and installed, and on the basis of the WindowsCE5.0 operating system, the embedded operating system can be customized and installed. The main control software of power quality detection is designed by using VS2005 development tool. Finally, through the actual test of the standard source of three-phase power power in the laboratory, the measured data of the power quality detector are obtained, and the measurement error is analyzed and debugged and corrected by the way of software and hardware. The experimental results show that, The power quality detector developed in this paper has achieved the expected accuracy in the detection of its power parameters and power quality indexes.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TM711;TP368.12

【参考文献】