| Title |
A Sensor Value Validation Technique for Supporting Stable Operations of Thermal Power Plants |
| Authors |
Seung-Chul Lee ; Seung-Jin Kim ; Seung-Woo Han |
| Keywords |
Sensor Value Validation ; Power Plant Monitoring ; Power Plant Fault Diagnosis ; Causal Relation ; Sensor Precision |
| Abstract |
In power plant operations, sensor values often exhibit erroneous values due to their failures or the intrusions of various noises. However, most of the power plant monitoring and fault diagnosis systems perform their tasks based on the assumptions that the collected sensor values are correct all the times. These assumptions, which are not valid, often lead to serious consequences such as power plant trips. In this paper, we propose a power plant sensor value validation technique that can utilize the relationships existing among the sensor values as the sensor redundancy. The proposed technique is applied to the flow meters installed along boiler feed water systems of a typical tubular type boiler thermal power plant and shows a good potential of future applications. |