Control system of power plant with 80MW output

Sitara Energy LTD. is one of the most modern and largest captive plants in Pakistan. Electrical energy is produced by twenty-four generator sets. Eight generator sets operate on diesel fuel and sixteen operate on natural gas. The maximum output power is 80 MW. The power plant is equipped with a combination of the most modern technology from Japan, Europe and USA. 30 MW of electrical energy is supplied to the Sitara Energy sister's concerns and 20 MW is supplied to Faisalabad Electric Supply Company (FESCO).

Control system

A general reconstruction of twenty-four generator sets was carried out from 2005 – 2007. The reconstruction included a modification of the generator sets. Their fuel systems were modified to operate on diesel fuel and natural gas. The whole contract was carried out by Motor System s.r.o. The Reliance SCADA/HMI system was installed for control and visualization of the generator sets and also for control of other engineering facilities. The Reliance system provides communication with WOODWARD Control System over the Modbus protocol. All important parameters from operation are controlled by Reliance. Data from the operation is automatically stored in the database. The historical data is used for displaying the historical trends, alarms/events and other relevant information. The operator (Sitara Energy LTD.) is very satisfied with the control system installed in its power plant.

Examples of visualization windows

Generator set – a main window

Visualization of the exhaust gas temperatures and deviations

A visualization window with trends