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Abstract
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Article Information:
Automatic Meter Reading using Power Line Signaling and Voltage Zero-crossing Detection
C.L. Vasu and R. Jayaparvathy
Corresponding Author: C.L. Vasu
Submitted: January 19, 2015
Accepted: February 24, 2015
Published: June 05, 2015 |
Abstract:
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In India, the electric power transmission and distribution loss is very high, about 7% in transmission and 26% in distribution. Though deployment of automated meter reading system will reduce losses, particularly in distribution, penetration of automated meter reading is low due to high costs involved. World over, the Two-Way Automatic Communications System (TWACS) is the most widely used power line communications technology offering two-way communication between substation and end users. The TWACS introduces disturbance on the power system voltage for short durations near zero-crossing to generate the outbound (from substation to end user) signal. To generate the inbound (from end user to substation) signal, short duration current pulses are introduced, near voltage zero-crossings. Information is generated as a sequential combination of voltage disturbances for the outbound signal and current pulses for the inbound signal. The current study proposes a low-cost modification of the TWACS to reduce voltage and current harmonics. The proposed system has been modelled and simulated using SIMULINK/SIMPOWER Systems. The simulation results show that there is a reduction in voltage harmonics from 0.84 to 0.17% and in current harmonics from 2.07 to 1.10%.
Key words: Harmonics, power line communication, power line quality, smart grid, smart meters, ,
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Cite this Reference:
C.L. Vasu and R. Jayaparvathy, . Automatic Meter Reading using Power Line Signaling and Voltage Zero-crossing Detection. Research Journal of Applied Sciences, Engineering and Technology, (4): 414-424.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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