基于ARM和ADE7878的多功能电力监测装置

发布时间：2018-06-21 14:47

  本文选题：监测装置 + LPC2214　； 参考：《南京理工大学》2012年硕士论文

【摘要】：如今人们的生活越来越依赖电能,因此,对电网电力参数的监测就显得非常重要。本文所述的电力监测装置是一种多功能电力参数测量仪表,能够实时监测电网的运行状态。 本装置以飞利浦公司推出的高性能低功耗的LPC2214芯片和ADI公司的专用电能计量芯片ADE7878为核心,其中LPC2214芯片主要完成对ADE7878芯片的电力参数测量值的读取,电压电流瞬时波形的采集与谐波分析、人机交互和其他监控功能。此外,装置带有RS485通信接口,能够方便的与上位机进行本地和远程通信。ADE7878实现对电网数据的采集并进行有功、无功及视在功率,有功能量以及无功能量,电压、电流有效值计算等。 本论文首先介绍了电力计量的发展状况,对目前国内外常见的电力监测装置的结构进行了综述,接着阐述了基本电力参数的测量原理,然后详细介绍了多功能电力监测装置的硬件设计和软件设计,给出了总体设计方案、详细的硬件原理图和软件设计流程图。其中,硬件设计包括采样电路、电源电路、核心电路和显示电路等,软件系统是以嵌入式实时操作系统μC/OS-Ⅱ为核心,将其移植到LPC2214处理器上。最后对装置各个功能模块做了初步整合,采用三相精准测试电源对监测装置进行了实验论证,通过实测数据表明该装置具有较高的测量精度,能够实时和稳定的工作,达到了预期设计要求。
[Abstract]:Nowadays, people depend more and more on electric energy, so it is very important to monitor power parameters. The power monitoring device described in this paper is a kind of multifunctional power parameter measuring instrument, which can monitor the running state of power network in real time. The device is based on Philips LPC2214 chip with high performance and low power consumption and ADE7878 from ADI company, in which LPC2214 chip mainly reads the power parameter measurement value of ADE7878 chip. Voltage and current instantaneous waveform acquisition and harmonic analysis, man-machine interaction and other monitoring functions. In addition, the device has RS485 communication interface, which can conveniently communicate with the host computer for local and remote communication. ADE7878 can collect and carry out active power, reactive power and apparent power, active power and reactive energy, and reactive energy and voltage. Calculation of effective value of current, etc. This paper first introduces the development of electric power metering, summarizes the structure of common power monitoring devices at home and abroad, and then expounds the measuring principle of basic power parameters. Then the hardware design and software design of the multifunctional power monitoring device are introduced in detail. The overall design scheme, the detailed hardware schematic diagram and the software design flow chart are given. The hardware design includes sampling circuit, power supply circuit, core circuit and display circuit. The software system is transplanted to LPC2214 processor based on embedded real-time operating system 渭 C / OS- 鈪，

本文编号：2049105