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Research on Power Quality monitoring system based on low-voltage PLC technology

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3 Author(s)
JunChang Guo ; Dept. of Electr. & Inf. Eng., Changsha Univ. of Sci. & Technol., Changsha, China ; ShiPing Su ; Chuanzong Fu

There are massive nonlinear,impulsive and undulatory loads in the power supply system. These loads may cause damage to the electrical network, such as wave distortion(wave distortion), voltage hunting, voltage flicker, three-phase unbalance, and the asymmetry. All of these had very bad effects on Power Quality of power supply network. As the development and construction of smart grid, the power consumers are getting more and more strict with the power quality. This paper proposed that a kind of power quality monitoring system based on low-voltage PLC technology, the power quality monitor module uses binuclear structure include DSP and MCU, carries on the high speed data communication through the HPI interface. The DSP chip adopt TMS320C6711,Which monitor each target of power quality through appropriate algorithm. Then MCU take further process to the data that has been processed by DSP. Simultaneously complete the function such as LCD display,the large capacity data storage,and remote data transmission. The low-voltage PLC module uses the MAX2990 communication module, which adopted OFDM mode to retransmit information. The OFDM mode has advantages such as stable performance and could sending data quickly.

Published in:

Advanced Power System Automation and Protection (APAP), 2011 International Conference on  (Volume:2 )

Date of Conference:

16-20 Oct. 2011