CONTROL SYSTEM FOR GAS REGULATION STATIONS
About Technology
The underground gas storage reservoirs are used for seasonal storage of natural gas. Actual space for storage is either in a mined-out natural deposit of the gas or in a geologically suitable area. The premises of the reservoirs is extensive in terms of its area, the distances between the individual plants amounts up to several
kilometres. A centre contains technological equipment for purifying, drying and heating the gas and for regulating the amount and pressure of the gas. At each centre the connection from the
The control system was designed with regard to the functionality in space arangement of the technology. Network topology corresponds to multilevel distributed control system which consists of field RTUs and operator station.
DISTRIBUTED CONTROL SYSTEM WITH CENTRAL CONTROL ROOM FOR UNDERGROUND GAS STORAGE
(SOUTH MORAVIA, CZECH REPUBLIC)
General Information
| Type of configuration Hierarchical |
Hierarchical |
| Number of levels |
3 levels |
| Type of connection |
Star |
| Number of RTUs |
54 |
| Max. distance |
6 km |
Level 1 - Central Control Room
| Multiuser SCADA System |
IGSS |
| Communication Concentrator |
VME Based |
| Communication with Level 2 |
HDLC |
Level 2 - Central Area Stations, Collection Centres
| Number of Stations |
14 |
| Operates for direct controlling |
Compressors, heating and pressure control, water separation |
| Communication with Level 3 |
HDLC |
Level 3 - Outdoor Wells Controllers
| Number of Stations |
40 |
| Operating Temperature Range |
-40°C .. +85°C |
Total Number of Signals
| DI |
2120 |
| DO |
870 |
| AI |
705 |
| AO |
55 |
DISTRIBUTED CONTROL SYSTEM WITH CENTRAL CONTROL ROOM FOR UNDERGROUND GAS STORAGE
(NORTHERN MORAVIA, CZECH REPUBLIC)
General Information
| Type of configuration |
Hierarchical |
| Number of levels |
3 levels |
| Type of connection |
Star |
| Number of RTUs |
27 |
| Max. distance |
10 km |
Level 1 - Central Control Room
| Multiuser SCADA System |
IGSS |
| Communication Concentrator |
VME Based |
| Communication with Level 2 |
HDLC |
Level 2 - Central Area Stations
| Number of Stations |
4 |
| Operates for direct controlling |
Compressors, heating and pressure control, water separation |
| Communication with Level 3 HDLC |
HDLC - radiomodem |
Level 3 - Outdoor Wells Controllers
| Number of Stations |
20 |
| Operating Temperature Range |
-40°C .. +85°C |
Total Number of Signals
| DI |
708 |
| DO |
304 |
| AI |
286 |
| AO |
40 |
CONTROL SYSTEM FOR GAS REGULATION STATIONS
DISTRIBUTED TELEMETRIC SYSTEM FOR DATA MONITORING SUPERVISION AND CONTROL OF GAS REGULATION STATIONS (SOUTH MORAVIA, CZECH REPUBLIC)
About Technology
The gas distribution system consists of a very-high-presure transit system (VVTL) from vhich the gas is suplied to the high-pressure (VTL) and medium-presure distribution
systems.
The stations usually contain equipment for actual gas pressure reduction, safety closures operating autonomously when the pressure drops below, filtres for gas purification, gas closures, equipment for heating the gas, for measuring the pressure ant the temperature of the
gas.
Dispatcher system ensure the folowing functions:
- continuous monitoring of the distribution network and display the current situation
- possibility of remote control
- archiving the data obtained from measurements and their use for further processing particularly by database system
General Information
| Type of configuration |
Hierarchical |
| Number of levels |
2 levels |
| Type of connection |
Star, via telephone, GSM, Satellite |
| Number of RTUs |
22 |
| Max. distance |
200 km |
Level 1 - Central Control Room
| Multiuser SCADA System |
IGSS |
| Communication Concentrator |
VME Based |
| Communication with Level 2 |
HDLC via telephone, GSM, Satellite |
Level 2 - Telemetric Stations
| Number of Stations |
22 |
| Operating Temperature Range |
-40°C .. +85°C |
Total Number of Signals
| DI |
410 |
| DO |
120 |
| AI |
210 |
| AO |
30 |
|
