Sensor Dynamics Compensator for Temperature Measurement in Combustion Chambers of Utility Boilers and Incinerators

Igor Boiko, Vardan Mkrttchian

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

This chapter proposes a sliding mode compensation scheme for the dynamics of sensors used for temperature measurements in the combustion chambers of utility boilers and incinerators. The proposed compensator can be used as a part of the electronics of temperature transmitters. Analysis and design are carried out in the frequency domain by using the locus of a perturbed relay system (LPRS) method. Frequency-domain characteristics of the compensator dynamics are derived. The compensator is capable of restoring the original temperature variations which otherwise are lagged. It can be used as a part of a temperature transmitter improving its dynamic response. The compensation is based on the "sliding mode observation principle." The sliding mode is generated in the compensator loop, which includes the model of the sensor dynamics and the SM controller. If ideal sliding mode occurs then the equivalent control would be equal to the observed temperature signal. The observed temperature signal is approximately equal to the averaged control signal.

Original languageBritish English
Title of host publicationPower Plants and Power Systems Control 2006
Pages237-241
Number of pages5
DOIs
StatePublished - 2007

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