Thermal power plant dynamics identification

Abstract

Aspects of the process identifiability and accuracy of the frequency response identification are discussed for a two stage identification approach proposed by Kulessky et al. (1996, 1998) and Peer et al. (1997). A frequency region is defined in which accuracy of the frequency response identification from noise data reaches maximum. Besides, the requirement for a deterministic test signal is formulated from the identifiability point of view. Retrofit of two 75 MW boilers and 140 MW power unit modeling at IEC Power Station are fulfilled by implementation of this identification procedure, yielding satisfactory results.