PLC Scada Based Boiler Control Operation
This paper outlines the various stages of operation involved in the conversion of manually operated boiler towards
a fully automated boiler. Over the years the demand for high quality, greater efficiency and automated machines has
increased in this globalised world The initial phase of the paper focuses on passing the inputs to the boiler at a required
temperature, so as to constantly maintain a particular temperature in the boiler. The Air preheater and Economizer helps in
this process. And the paper mainly focuses on level, pressure and flow control at the various stages of the boiler plant. Thus
the temperature in the boiler is constantly monitored and brought to a constant temperature as required by the power plant.
The automation is further enhanced by constant monitoring using SCADA screen which is connected to the PLC by means
of communication cable. By means of tag values set to various variable in SCADA the entire process is controlled as
required. At the automated power plant, the boiler is controlled by Variable Frequency Drive (VFD) to put in action the
required processes to be carried out at the boiler .Thus the entire cycle is carried out as a paper and at various stages each
phase is detailed out .This paper has proved to be very efficient practically as the need for automation grows day by day.
Keywords- Automation, PLC-SCADA, Boiler, VFD