Application of Embedded System in Synchronized Phasor Measurement Unit

• Main Authors: Chun-Hao Chen, 陳鈞豪
• Other Authors: Jun-Zhe Yang
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/10765067727777490424

碩士 === 義守大學 === 電機工程學系碩士班 === 99 === By using the 1PPS (1 Pulse Per Second) and time marker provided by GPS (Global Positioning System), PMUs (Phasor Measurement Units) can sample the whole power system synchronously. PMUswill beplaced ina number ofmeasurementsitesrequired tomeasure thebusvoltageand currentPhasor,because thebusvoltage and current samples are measured simultaneously. With PMUs, we can totally know the situations of power system without solving power flow or state estimation. Therefore, the reliability and security of power system can be raised by PMUs. With the increase of applications, Taiwan Power Companyset upbythe ADX PMU products are increased. It is foreseeable that the computational load will exceed in the near future. For the real time response of operation and the convenience of clients, it is necessary to upgrade the DSP processor. However, with the great progress in hardware, it is not just to upgrade the DSP processor, but have to integrate each function cards in the ADX series products, rewrite the programs and consider the new method to expand the functions for the future demands. In this paper, we chose embedded system and FPGA to achieve these jobs. This is because embedded system is easy to integrate hardware, has enough computational capability, and has internet to transmit increasing data to users or to update firmware. Moreover, FPGA can simplify the design of digital circuits and let the embedded system easier to combine with other ADX function cards.