ABB wins order to modernize the control system at E.ON's Scholven power plant
ABB has won an order worth 4.4 million euros covering complete replacement of the unit control system in Unit C of E.ON's hard-coal-fired Scholven power plant, including DeNox, flue gas cleaning and the turbine control system. The unit was orginally designed for base load and is now, due to changed market requirements, utilized in medium-load operation. In order to ensure continuingly profitable operation of Unit C (rated at 384 MW and commissioned in 1969) for the years ahead, it was necessary to replace the instrumentation and control equipment. The modification work will be carried out during a unit standstill lasting only ten weeks, and is scheduled for completion by the end of 2005.
As part of the replacement job for the control system, the plant's degree of automation is being upgraded for fully automatic mode, thus enabling it to be run from a single workplace in "one-man operation". The use of the MODAN model-based unit control systems provides primary frequency control for both operating modes: turbine follow and boiler follow operation. This enables the plant to respond promptly to fast demand changes on the grid.
ABB will not only be replacing the existing third-party control system, but also modernizing the turbine's hydraulic and electronic protection and automation systems. The use of ABB's field-proven power plant control package IndustrialIT System 800xA for Melody will significantly improve the plant's operating capabilities and enable the unit's optimization potentials to be fully exploited. The control system scores in terms of its consistently integrated system for the main DCS and the protection features and the turbine governor, plus state-of-the-art concepts for monitoring and control.
For operator control and visualization, Unit C's control room is being completely replaced and upgraded from a conventional operator control and visualization philosophy to a state-of-the-art control room designed for "one-man operation".
In addition, the client also placed an order with ABB to replace the boiler control and install a system for process quality monitoring in Unit F. The boiler control is being replaced because most of the existing devices / systems are no longer available. The new boiler control will enable the boiler's optimization potentials to be exploited more effectively. The process quality monitoring feature enables the power plant's operating staff to supervise and optimize process control, producing a sustained improvement in process quality.
The Scholven power plant, located in the eastern part of the Ruhr, was originally an energy facility for the auxiliaries at a mine in a suburb of Gelsenkirchen. The installation developed into a high-performance power plant, ranking among Europe's largest. Its tasks cover not only producing electricity for RWE, but also generating and decoupling district heat for the district heat network, which extends over the eastern part of the Ruhr region. The Scholven power plant comprises five units, four of which are fired with hard coal, and Unit H with light fuel oil, plus the Buer district heating power plant, which is fired with hard coal. The total installed capacity is 2'600 MW.
As part of the replacement job for the control system, the plant's degree of automation is being upgraded for fully automatic mode, thus enabling it to be run from a single workplace in "one-man operation". The use of the MODAN model-based unit control systems provides primary frequency control for both operating modes: turbine follow and boiler follow operation. This enables the plant to respond promptly to fast demand changes on the grid.
ABB will not only be replacing the existing third-party control system, but also modernizing the turbine's hydraulic and electronic protection and automation systems. The use of ABB's field-proven power plant control package IndustrialIT System 800xA for Melody will significantly improve the plant's operating capabilities and enable the unit's optimization potentials to be fully exploited. The control system scores in terms of its consistently integrated system for the main DCS and the protection features and the turbine governor, plus state-of-the-art concepts for monitoring and control.
For operator control and visualization, Unit C's control room is being completely replaced and upgraded from a conventional operator control and visualization philosophy to a state-of-the-art control room designed for "one-man operation".
In addition, the client also placed an order with ABB to replace the boiler control and install a system for process quality monitoring in Unit F. The boiler control is being replaced because most of the existing devices / systems are no longer available. The new boiler control will enable the boiler's optimization potentials to be exploited more effectively. The process quality monitoring feature enables the power plant's operating staff to supervise and optimize process control, producing a sustained improvement in process quality.
The Scholven power plant, located in the eastern part of the Ruhr, was originally an energy facility for the auxiliaries at a mine in a suburb of Gelsenkirchen. The installation developed into a high-performance power plant, ranking among Europe's largest. Its tasks cover not only producing electricity for RWE, but also generating and decoupling district heat for the district heat network, which extends over the eastern part of the Ruhr region. The Scholven power plant comprises five units, four of which are fired with hard coal, and Unit H with light fuel oil, plus the Buer district heating power plant, which is fired with hard coal. The total installed capacity is 2'600 MW.
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