Notable Features/Aspects of the Mark VIe Control System


Digital Bus Protocols GE’s Mark VIe Plant Control System hosts several digital data bus technologies to facilitate communication among the controllers and sensors, as well as the actuators and electrical equipment. In contrast to traditional methods, digital bus technologies allow several signals to be transmitted over one set of wires for control and monitoring purposes. Digital bus devices can also exchange additional information with the controller and remote platforms, such as identification, health, diagnostics, and control settings.


Digital bus connection methods and the additional information provided decrease total installed cost by significantly reducing the amount of effort spent on interconnecting wires and terminations, thus, simplifying and speeding up checkout and commissioning. A typical 9HA plant with digital bus technology will realize approximately $1 million in cost savings. The technology also can provide long-term operational benefits to power plant owners and operators through improved fault detection and diagnostics.


2% 2% 16% 35% 61% 37% 61% 22% 62%


Gas Turbine FOUNDATION™ Fieldbus


Steam Turbine Traditional Wiring


Profibus™


Balance of Plant CAN®


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Control Software Applications GE’s position as an OEM enables the use of strong domain expertise to differentiate turbine and plant performance and operability with controls. High-fidelity physics-based models of the plant components are embedded within the controls logic to run in real time, and are the backbone of adaptive control strategies that protect assets and enhance operation. Features and benefits of this model- based control strategy include:


• Startup agility, providing fast, reliable, repeatable starts with low emissions • Combustion versatility and improved turndown, providing robust operation during variations in weather, fuel, and grid • Load flexibility, for load range expansion, and improved efficiency and responsiveness • System reliability enhancements for reliable, cost-effective operations


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