On-line Identification of Furnace Parameters for Coal-Fired Boiler Control | Zendy

Yukio Fukayama | Zendy; Kotaro Hirasawa | Zendy; Katsumi Shimohira | Zendy; Toshikazu Tsumura | Zendy; Koji Yamamoto | Zendy

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On-line Identification of Furnace Parameters for Coal-Fired Boiler Control

Author(s) -

Yukio Fukayama,

Kotaro Hirasawa,

Katsumi Shimohira,

Toshikazu Tsumura,

Koji Yamamoto

Publication year - 1999

Publication title -

journal of robotics and mechatronics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.257

H-Index - 19

eISSN - 1883-8049

pISSN - 0915-3942

DOI - 10.20965/jrm.1999.p0374

Subject(s) - boiler (water heating) , control theory (sociology) , combustor , discretization , coal , engineering , combustion , mathematics , computer science , waste management , chemistry , mathematical analysis , control (management) , organic chemistry , artificial intelligence

A new identifier for furnace parameters on control coalfired boilers fuel ratio dominating coal burning speed and slagging factor influencing the heat resistance on heating surfaces was applied to a 1000MWe power station. The identifier is based on the Extended Kalman Filtering on a nonlinear boiler dynamics model including energy and mass conservation laws in continuous time with seeking parameters fluctuated as the Brownian motion. The identifier refers to not only measured gas and water temperature at boilers (observable) but also actual fuel flow of each burner (manipulation) for the guidance to plant operators to cope with parameter fluctuation. Due to numerical stability, the identifier uses both Pade (1,1) approximation for time discretizing and U-D factorization for calculating the covariance matrix.

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