摘要

Turbine exhaust temperature is an important thermal parameter in gas turbine power plants and its measured value is affected by sensors state. General regression neural network (GRNN) was used to construct an auto-detection network for turbine exhaust temperature sensors. Optimizing design of network, error controlling and effect testing were studied, and also a method of threshold for sensor detection was advanced. The network is verified by practical data from a power plant and is proved to be with good value of engineering application for sensor state detection of unit.

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