Algorithm of parameter identification for temperature distributed parameter system of large-scale vertical quench furnace

作者：Yu, Shou-Yi^*; Cao, Yue-Bin; Zhou, Xuan

来源：Journal of Central South University(Science and Technology), 2008, 39(6): 1285-1290.

• Distributed parameter systems
• Distribution parameter system
• Integral operational matrix
• Iterative algorithm of parameters identification
• On-line parameter identification
• Orthogonal function transform
• Parameter identification algorithms
• Parameter identification methods

Taking block pulse function as basic function and using orthogonal function transfer, the partial differential equation describing distribution parameter system model was transferred to algebra equation of least square, and the parameter identification algorithm for temperature distribution parameter system of large-scale vertical quench furnace was deduced. The emulational was made and it was applied in 31 m vertical quench furnace temperature control system indicating that this method can meet the demand on real-time and precision of parameter identification. The results show that the key of this algorithm is the solution of the integral operational matrix of orthogonal function. The identification considers the influence of initial condition and boundary condition, so the parameter identification precision is improved to -6%-6% and that also keeps the special distribution characteristic of system. This parameter identification method is easy to compute and can realize online parameter identification.

• 出版日期2008-12
• 单位中南大学; 华南理工大学