The company provides a complete automation control solution for mechanical drive gas turbines, station controls and Emergency Shutdown (ESD) systems. Our systems provide complete SCADA, DCS as well as Fault Tolerant systems and we are at the very forefront of machinery control and monitoring technology.

Facilities
We provide the basic engine sequencing and closed loop governor control our GT control systems can also include HMI systems, plant control systems such as Station Control and Anti-surge control systems for turbo-compressor plant as well as synchronisation and load control for power generation equipment.

Control Platforms
Our control platforms include the state of the art Rockwell Controllogix and Siemens S7 family of PLC’s.

These systems provide interchangeable hardware and portable software, greater standardisation, supplier independence as well as upgradeable technology with global support from established companies. Integration of the controls onto other hardware platforms is available where the controllers meet the performance requirements.

Each of the control platforms uses conventional I/O but may be interfaced with distributed I/O technologies such as Profibus, ControlNet and Genius Bus to provide a cost-effective alternative to traditional multi-core field cabling.

Engine control
The basic gas turbine engine control schema within the controller platform consists of:

• Governor control module—Closed loop control of engine speed and engine parameter limiters

• Exhaust Gas Temperature (EGT) package—Monitoring of the EGT temperatures as well as the calculation of average, deviation, spread, temperature alarming etc.

• Engine sequencer control module—The sequenced start-up and stop control of the engine as well as alarm handling and the interface to HMI and SCADA systems

Each software control module is designed to operate within its own independent optimised program execution blocks to provide robust high speed control. Interfaces to the modules are simplified through defined parameter lists and command structures.

Load control
Additional modules can be installed within the GT controller platform to provide driven load control facilities including:

• Compressor Anti-Surge control

• Compressor Station control

• Electrical load control

• Electrical load balancing and load shedding

• Plant sequencing