SPPA-P3000 Solutions for Steam Power Plants
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SPPA-P3000 Solutions for Steam Power Plants
SPPA-P3000 Process Optimization
Optimizing processes in the power plant is one of the most demanding tasks of all. Especially if it is to be achieved without costly modifications on the mechanical engineering side, i.e without major conversions to the steam generator and turbine.
This purely software-oriented approach followed by Siemens has been an ongoing success in the world's power plants for just on a decade now and has made many operators happy people – especially when they think about their ROI (return on investment).
Besides being widely incorporated into new power plants, Siemens' SPPA-P3000 Process Optimization is nowadays a popular choice for power plant upgrades. More and more operators are going beyond simply replacing their obsolete instrumentation and control systems and are taking the opportunity of a scheduled modernization to bring their power plants into line with the current market situation, which calls above all for greater flexibility and higher efficiency, better availability and lower emissions.
This is precisely where the focus of the SPPA-P3000 Process Optimization Solutions lies.
High flexibility is increasingly demanded especially in the liberalized markets. SPPA-P3000 solutions for enhancing flexibility allow optimal reactions to changing power demands. Basis for the simultaneously flexible and stable operation are control concepts with the respective increments in the subordinated control circuits for maximum and minimum load.
High efficiency by optimized controls is well proven in power plant of all kinds all over the world. SPPA-P3000 solutions optimize the overall cycle efficiency thanks to better utilization of the power plant unit, e.g. by reducing throttling losses and optimizing the combustion air, the steam temperatures or the circulating water temperature.
High availability through less stress. The feedforward control consistently implemented in the SPPA-P3000 solutions allows fuel overfiring to be reduced and the number of control actions to be kept to a minimum. This helps to reduce service life consumption effects on components. The tried-and-tested load-capability circuit enables the plant to cope with the loss of major components without tripping.
Low emissions are achieved as SPPA-P3000 solutions create an increase in efficiency which yields a simultaneous reduction in CO2 emissions.
SPPA-P3000 solutions for enhancing flexibility without modifying the hardware is enjoying growing popularity especially in the liberalized markets. MaxLoadPlus makes it possible e.g. to boost power output to 110% on the basis of control actions alone – as has been demonstrated in practice! A profitable investment that pays off in next to no time!
SPPA-P3000 solutions for high flexibility allow optimum response to changing load demands. The control concept together with extension of the operating range of the subordinate controls to cover higher maximum and lower minimum loads lay the foundations for flexible and at the same time stable operation.
Using optimized control technology to improve efficiency is a solution that has been tried and tested in power plants of the most diverse types worldwide. One example of how this can be done is optimization of the combustion air using the PROFI CombustOptimizer, which can achieve a significant improvement in efficiency, depending on the plant.
SPPA-P3000 Process Optimization Solutions optimize the overall cycle efficiency thanks to better utilization of the power plant unit, e.g. by reducing throttling losses and optimizing the combustion air, the steam temperatures or the circulating water temperature.
Availability continues to be top priority on the specifications list of many operators. Understandably so, because a power plant on an unscheduled outage not only costs money, it also pulls down the overall output balance. PROFI LowStress is a successful example of how a lot can be achieved at low cost.
The feedforward control consistently implemented in the PROFI Solutions allows fuel overfiring to be reduced and the number of control actions to be kept to a minimum. This helps to reduce service life consumption effects on components. The tried-and-tested load-capability circuit enables the plant to cope with the loss of major components without tripping.
Since Kyoto, emissions have been back in the spotlight. Keeping them low is in the interest of every plant operator, not only but also for cost reasons. With SPPA-P3000 Emissions Control we have developed a solution that optimizes the performance of each burner to help sustainably reduce CO2 emissions. And save money!
SPPA-P3000 solutions reduce emissions through stable plant operation and continuous optimization of the operating points of the separate burners. Any increase in efficiency yields a simultaneous reduction in CO2 emissions.
Mr. Dr. Bernhard Meerbeck