Control system of gas distribution pipeline system for Eastern Bohemia

Vychodoceska plynarenska, a.s. is a gas distribution company in the east-bohemian region. The company belongs to the RWE Group. The company decided to innovate its main SCADA/HMI system in 1998. After thorough evaluation of several SCADA systems, the gas distribution company chose Reliance. The aim of a new system was to visualize all interchange super high-pressure regulation stations and high-pressure regulation stations.

The approach of the company has been very active since the beginning. Employees at the gas distribution company wanted to create and maintain the visualization by themselves, so after creating the basic project for several first regulation stations, people were well trained to be able to maintain and expand the system independently.

Several dozen regulation stations were modernized and connected to the system every year. In 2004 all gas regulation stations were finally connected to the visualization. The system now consists of more than 400 regulation stations communicating with the main control room 24 hours a day.

Vychodoceska plynarenska, a.s. headquarters in Hradec Kralove

The control system provides

• Data acquisition from all connected gas regulation stations
• Communication with regulation stations using modems and mobile network
• Automatic handling of incoming calls
• Generating and logging Alarms and Events
• Logging all historical data
• Setting up limits
• Sending commands to regulations stations
• Network communication among computers in the system using TCP/IP protocol
• Statistical evaluation of historical data
• Access to the system for Web clients
• Exporting the data to the Corporate Central Data Storage system
• Exchanging the data with the Customer Information System

A picture of the control room

The whole control system has client-server architecture. There is a central control room in the headquarters and 7 secondary control rooms located in regional branches. Communication among main control room and regional control rooms uses a WAN network.

Example of a visualization window

A visualization window that display the distribution pipeline system