DESIGN AND IMPLEMENTATION OF A CONTROL PERFORMANCE MONITORING SOFTWARE
Timetable: | Begin: 2000-01-01 | |
End: 2003-05-01 | ||
Description:The number of control loops used in industry is growing continuously and there are problems in keeping them well tuned. In order to ensure highest product quality it is essential to maintain the control systems in an adequate manner. An improved control performance has a considerable effect on variations in end product quality, and thus on the productivity of the plant. Additional benefits are low consumption of raw materials and energy, as well as a longer life span of the instruments. During the last decades considerable effort has been placed on developing suitable indices for evaluating control performance. The evaluation methods can be divided into two categories: stochastic and deterministic methods. The most widely studied stochastic indices are those based on using of MVC (minimum variance controller) calculation as a benchmark. Deterministic indicators are more informative in the case of a sudden load disturbance or a set point change. Various dimensionless indices for setpoint changes have been proposed in the literature. | ||
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This info last modified 2005-08-15 by Jerri Kämpe-Hellenius |