RS Based SCADA System for Longer Distance Powered Devices

This project aims at building an efficient and
automatic power monitoring SCADA system, which is capable of
monitoring the electrical parameters of high voltage powered devices
in real time for example RMS voltage and current, frequency, energy
consumed, power factor etc. The system uses RS-485 serial
communication interface to transfer data over longer distances.
Embedded C programming is the platform used to develop two
hardware modules namely: RTU and Master Station modules, which
both use the CC2540 BLE 4.0 microcontroller configured in slave /
master mode. The Si8900 galvanic ally isolated microchip is used to
perform ADC externally. The hardware communicates via UART
port and sends data to the user PC using the USB port. Labview
software is used to design a user interface to display current state of
the power loads being monitored as well as logs data to excel
spreadsheet file. An understanding of the Si8900’s auto baud rate
process is key to successful implementation of this project.

Authors:

• Harkishen Singh
• Gavin Mangeni

Keywords:

• SCADA
• RS485
• CC2540
• Labview
• Si8900.

References:

[1] J. Santos and A. De Almeida, 'Concepts for SCADA systems planning in
a changing competitive environment', Electricity Distribution, 2005.
CIRED 2005. 18th International Conference and Exhibition on, pp. 1-5,
2005.
[2] K. Kumar and R. Balakrishna, 'Supervisory Control and Data Acquistion
(SCADA) in Subtransmission and Distribution Levels in Power Systems',
ResearchGate, 2013.
[3] M. Ahmed, 'New Supervisory Control and Data Acquisition (SCADA)
Based Fault Isolation System for Low Voltage Distribution Systems',
2010.
[4] D. Mohamed, 'Practical Implementation of SCADA System for Fallujah
Substation', ResearchGate, 2009.
[5] J. Gardner, 'Basic SCADA Communication Design'. (Online). Available:
http://asgmt.com/wp-content/uploads/pdf-docs/2004/1/F3.pdf.
(Accessed: 20- Jan- 2015).
[6] A. Yao, 'Developing a PC-based automated monitoring and control
platform for electric power systems', Sciencedirect.com, 2002.
[7] M. Najeh and M. Kamel, 'Project Management Phases of a SCADA
System for Automation of Electrical Distribution Networks', 2012.