Visualization and control of the power unit processes at
a small biomass power plant in the town of Kolin

February 11, 2014 | Reliance SCADA

Between the years 2010 and 2013, the construction of an oil mill and a small biomass power plant was carried out near the train station in Kolin. They are two plants interconnected in
a technologically smart way, which focus on the production of vegetable oils from rapeseeds and sunflower seeds and on the production of electricity and heat in the so-called cogeneration unit. Press cakes (biomass) from oilseed processing are burned in the cogeneration unit.

Control system

The installed system is designed to control and monitor the power unit, which consists of a 25t/h steam boiler for burning biomass and a 6.3MW steam turbine.

To control the boiler, five Teco PLCs are used (1 x Tecomat TC700 and 4 x Tecomat Foxtrot). The steam turbine is controlled by a Siemens SIMATIC S7-300 PLC. Communication with this PLC is realized via an OPC server by DELTALOGIC.

To visualize and control the processes of combustion and heat/electric power production in the power unit, six workstations (standard PCs equipped with the Reliance SCADA/HMI system) have been installed in the main control room. The entire system is interconnected via Ethernet. This allows accessing individual controllers, servers, and workstations from remote locations. The power unit processes can also be remotely controlled over the Internet using Reliance's Web client, or they can be viewed on a tablet or smartphone via Reliance 4 Smart Client. Thanks to the use of two servers and support for redundancy, the entire system is very reliable and there is no chance of process data loss.

The main control room

The Reliance SCADA/HMI system is used for the monitoring and control of the following processes:

• Fuel transport and combustion
• Steam production in the boiler
• Dust and soot collecting and clinker removal from the boiler
• Water treatment
• Steam turbine control
• Water cooling

The monitoring of the power unit processes and timely service work can be carried out from the headquarters of the general contractor, the SEA CZ company.

Examples of visualization windows

Visualization of biomass transport

Visualization of the biomass combustion process

Visualization of the steam production process in the boiler

Visualization of the steam turbine

Visualization of steam turbine lubrication

Visualization of the chemical water treatment process

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