New power station uses 25,000 I/O control system

Jan. 11, 2001–Malaysia’s newest coal-fired power station at Manjung will be fully controlled by one of ABB’s largest ever control systems.

The station, which will be fueled by mainly sub-bituminous and other low-sulphur grade coal, is being built in a three-year project valued at around à‚£640 million.

Control of the plant will involve, altogether, some 25,000 I/O, plus 24 serial links for soft I/O. The plant, due to start operation in 2003, is being constructed by a consortium comprising Alstom Power and local company Peremba Construction.

The ABB automation system was specified by the end user, following its successful implementation at many of its other power stations. It provides total control of all areas of the power plant, including the boilers and burners on the three 700 MW gensets, coal mills, flue gas desulphurisation and common services, such as feed water pumps.

“The trend is towards ever larger control systems, enabling operators to control individual items of the plant from one central point, as well as initiate sequences affecting groups of plant and gather maintenance and management information,” commented Les Andrews, lead engineer for the Manjung DCS System at Alstom Power.

“What will make the ABB technology particularly attractive for the end user in this case is the use of our leading edge human system interface technology. Whilst initially supplied as an operator interface for plant control, this unrivalled technology will permit the later implementation of full web enabled plant management strategies,” said Paul Rix, Utility Sales Manager at ABB Automation.

As a potential starting point for future Asset Optimisation strategies, much of the field instrumentation for the project will be delivered with HART capability – ABB’s Contrans I interface system allowing digital information to be accessed and utilised for non-control purposes.

In addition to this contract, ABB Automation has also secured a subsequent order for the boiler protection system for the same project. Based on Triple Modular Redundant architecture, the ABB Triguard protection system will be delivered and installed alongside the main automation platform.

The plant is located 200 kilometres north of Kuakla Lumpur on the west coast of peninsular Malaysia, built for TNB Janamanjung Sdn Bhd, a wholly owned subsidiary of Malaysia’s national electricity utility Tenaga Nasional Berhad.

It is being constructed to help meet the country’s growing demand for electricity, currently rising by eight to nine percent annually, whilst reducing its heavy dependence on gas. The plant is scheduled to become fully operational during the third quarter 2003.

No posts to display