DIASYS netmation

Coal firing power plant in Thailand


Mitsubishi Power, Ltd. entered into a full-turnkey contract and turned it over to the customer, for a large scale coal firing conventional plant which consists of a coal fired boiler and a reheat steam turbine.

The Distributed Control System (DCS) totally adopts the DIASYS Netmation system which includes a boiler control unit, a turbine control unit, an auxiliary control unit, a flame detection unit, monitoring units for a communication gateway connected to island equipment PLC, and a facility control unit. In addition Mitsubishi Power have introduced an operation training simulator which provides an environment to support plant operation, maintenance, and upskilling of staff.

Background of introduction and issues

For the long-term stable operation of a thermal power plant, high reliability, availability, and serviceability for the plant itself are required, as is the reliability of the DCS. Furthermore, though automation is handled mostly by the DCS, control of a large scale conventional plant consisting of various types of equipment is complicated. It is very important to maintain and improve the skill and knowledge of the operation staff and maintenance engineers so that they can quickly and accurately judge the correct actions, not only during normal operation, but especially in emergencies.

Achievements and Effects of Introduction

We have introduced an operation training simulator that closely reproduces plant operation using precise models of the plant’s construction. This simulator provides a human resources development environment that contributes to maintaining and improving the technological capabilities of operators and maintenance engineers.

System Configuration

We are providing total service, including guidance and maintenance support for signs of abnormalities and performance degradation through long-term data collection and analysis. Our support also includes a proposal for periodic inspection plans, service parts, and dispatch of staff to the customer. Stable power plant operation is maintained by these support services.

System Configuration

System Configuration

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