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The GE MARK system, especially its application in the field of gas turbine control, such as the GE MARK VI control system, is the result of years of technological accumulation and innovation by GE. The system not only integrates advanced control algorithms, but also adopts high reliability hardware design and redundant configuration to ensure the efficient and stable operation of the gas turbine. The following is a detailed introduction to the GE MARK VI control system:
1、 System Overview
The GE MARK VI control system is the latest generation control system designed by GE for gas turbines. It integrates modern electronic and computer technology to achieve precise control and monitoring of the operating status of gas turbines. This system has high reliability and flexibility, and can meet the diverse needs of different users.
2、 System composition
The GE MARK VI control system mainly consists of the following parts:
Controller: The core component responsible for receiving and processing various sensor signals, executing control algorithms, and outputting control signals. The controller adopts redundant configuration to improve the reliability and availability of the system.
Human Machine Interface (HMI): A computer based on the Windows operating system that provides an intuitive operating interface and graphical display function, facilitating real-time monitoring of the operating status of gas turbines by operators.
I/O module: responsible for the input and output of signals, converting the control signals of the controller into the actual actions of the executing mechanism, and transmitting the signals of on-site sensors to the controller for processing.
Communication network: Advanced technologies such as high-speed Ethernet are used to achieve data exchange and communication between controllers, controllers and HMI, and controllers and field devices.
3、 Main functions
The GE MARK VI control system has multiple important functions to ensure the safe and stable operation of gas turbines:
Speed control: Based on the preset speed reference signal and actual speed signal, precise control of gas turbine speed is achieved by adjusting parameters such as fuel quantity.
Load control: Automatically adjust the output power of the gas turbine according to the user’s load demand to meet the requirements of the power grid or process system.
Temperature control: Monitor the temperature of key parts of the gas turbine, and ensure that the gas turbine operates within the allowable temperature range by adjusting parameters such as cooling water flow rate and fuel quantity.
Safety protection: Equipped with comprehensive safety protection functions such as overspeed protection, vibration protection, axial displacement protection, etc. Once abnormal situations are detected, corresponding measures will be taken immediately to protect the gas turbine from damage.
4、 Technical advantages
Highly integrated: adopting modular design to integrate various control functions into one system, reducing interfaces and fault points between systems.
High reliability: Adopting redundant configuration and fault diagnosis technology to ensure stable operation of the system in harsh environments such as high load and high temperature.
Easy to maintain: Provides rich fault diagnosis information and maintenance tools, making it convenient for operators to quickly locate and solve problems.
Flexible and scalable: Supports multiple communication protocols and interface standards, making it easy to integrate and expand with other systems such as DCS systems.
5、 Application Cases
The GE MARK VI control system has been widely used in gas turbine power plants and combined cycle power plants around the world, such as multiple refineries and power plants in China that have adopted this system for gas turbine control and monitoring. These cases fully demonstrate the reliability and superiority of the GE MARK VI control system in practical applications.
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