Analysis and Control of Once-Through Boiler-Turbine Unit

Wei Jian Huang; Yu Zhong Wu; Wei Min Kan; Xi Zhang

doi:10.4028/www.scientific.net/AMR.805-806.678

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A Method of Detecting Measurement Uncertainty of Voltage Unbalance
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The Identification of Single-Line-to-Ground Fault in Neutral Un-Effectively Earthed System
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Analysis and Control of Once-Through Boiler-Turbine Unit
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A Novel Method of Detecting Measurement Uncertainty of Voltage Deviation
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Simulation on Dual 12-Pulse Converter Groups in Respectively Controlled UHVDC System
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 805-806Analysis and Control of Once-Through...

Analysis and Control of Once-Through Boiler-Turbine Unit

Abstract:

A nonlinear once-through coal-fired boiler-turbine unit model is introduced and analyzed for the purpose of control system design. Firstly, input-output variable pairing configurations for this 3×3 system are obtained based on static relative gain array and row-Gershgorin band analysis using its linearization model at 100% load. A decentralized PI control system is then deployed and tuned to explore its control system performance as the basis of further study. Results show that the decentralized control structure has good setpoint tracking performance, while the disturbances between loops are still notable due to non-diagonal dominance, thus control strategy of decoupling or disturbance rejection is necessary.