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Metso DNA Steam Turbine Controller

High usabilityThe Metso DNA Steam Turbine Controller is designed to be installed as part of a retrofit old existing steam turbines or as part of supply package of new steam turbines. The controller has a robust system structure that is achieved by utilizing well proven standard DCS components. All system hardware components have been designed and manufactured meeting all applicable power generation specifications and standards.

Control of all aspects of turbine functionalityTurbine control functions integrated in the Steam Turbine Controller include fast servo valve control, a SIL3 overspeed protection and an integrated machine monitoring system.

The Metso DNA Steam Turbine Controller is based on standard Metso DNA DCS hardware and software which have been adapted for industrial and large utility sized turbines. It includes all steam turbine control and steam turbine governor functions required for safe and reliable steam turbine operation.

Steam Turbine Controller main functions:• Turbine governor and coordinated valve

control• Turbine overspeed SIL3• Turbine protection

(pressure, temperature, etc.)• Turbine monitoring

(vibration, shaft position, etc.)• All engineering and configuration with

standard Metso DNA tools• Seamless integration with Metso DNA

information management system

For more information, contact your local automation expert at Metso.

www.metso.com/automation

The information provided in this brochure contains descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products.

An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. Availability and technical specifications are subject to change without notice.E8

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Cost-effective maintenanceThe Metso DNA Steam Turbine Controller is based on well tested redundant solutions with special turbine functions and features. One of the key objectives of the Metso DNA Steam Turbine Controller has been a high level of system integra-tion. This makes the system engineering, integra-tion testing and field commissioning and main-tenance straight-forward and easy. These saves significant time and money during the final phases of the project, particularly in the commissioning and maintenance phases. Metso training simulator can also be easily added.

Integrated system performanceThe control system includes redundancies:•Process controllers•System busses• I/O busses• I/O units •Power Supplies and power feeds•Field bus communications and power supplies

All controls are executed in the high-speed redun-dant Metso DNA ACN process controllers. Each process controller is capable of handling Metso DNA I/O families, PROFIBUS DP, and FF field busses. The Metso DNA ACN controllers used for Steam Turbine Controller are of industrial design and they meet demanding power industry requirements.

IPSP power supply

ACN MR controllerACN I/O units

Benefits•Open platform, no black boxes •Control and protection in one system•High usability•Easy and cost-effective maintenance•Seamless coordination throughout boiler

and turbine control• Improved usability•Start-up can be performed directly from the

control room

ACN MR process controller and I/O units

User interface for Steam Turbine Controller