Introduction
Pipeline operation mode control system (POCS) is designed for
automatic start-up and shut-down of pipeline operation, switching
between operation modes, independent maintaining of a specified
operation mode and automatic emergency protection of a
pipeline.
Areas of application include oil and gas transportation
pipelines. The system provides better cost efficiency and process
safety for hydrocarbons transportation.
POCS is based on reliable engineering solutions proven in
various spheres of industrial automation applications.
Structure
- Operator workstation
- displaying information about the behaviour of the process and
the progress of algorithm execution;
parameter setting and control instruction issue to algorithm
controller;
- Redundant PLC
- dispatcher command processing and supplying information about
algorithm execution for its displaying on the dispatcher
workstation;
- handling of the process information which comes from
engineering equipment through the input-output server;
- instruction issue in accordance with the fixed algorithms which
are transmitted for action to the telemechanics system through the
input-output server;
- Redundant I/O server
- process data collection and transmission to the algorithm
controller;
- sending executive instructions from the algorithm controller to
the telemechanics system;
- information exchange between the dispatcher workstation and
algorithm controller.
POCS interacts with a pipeline telecontrol system. For best
efficiency POCS uses the same I/O server of the telecontrol
system.
Main Features
- Automatic safeguard of engineering equipment in case of
emergency.
- Automated control of engineering equipment in accordance with
the fixed process.
- Displaying information and reporting to dispatch
personnel.
- Information exchange with related systems available at the
enterprise.
- Organization of reporting on current and historical data.
- Self-diagnosis of software and hardware tools.
Benefits
Hot redundancy of PLCs, and I/O servers. Redundant network
equipment and operator workstations.
Automatic protection algorithms provide bumpless process
shutdown mitigating pipeline accident risks. The system features
inter-network screening to guarantee information security. Access
rights administration system for server and client applications
provides additional security.
Independent maintaining of optimum operation modes.
High-performance I/O servers.
Support of OPC, OLE DB, ODBC, SQL protocols for data
exchange.
Easy-to-operate control system with elaborated user interface.
Automatic report generation.
Block Diagram
