循环流化床锅炉燃烧系统的多模态仿人智能控制

Multi Modal Human-Simulated Intelligent Control of Circulating Fluidized Bed Boiler Combustion System

针对循环流化床锅炉燃烧被控对象的非线性、时变、大滞后及多变量强耦合的特点,将基于多模态仿人智能控制的解耦控制策略应用于该系统中;根据智能逻辑选择回路的逻辑信号,对相应的仿人智能模糊控制器进行选通,从而实现主蒸汽压力和床体温度之间的动态解耦;仿真结果证明,该策略基本上消除了主蒸汽压力和床体温度之间的耦合,响应曲线过渡平稳,响应较快,能收到良好的控制效果;为解决循环流化床锅炉燃烧控制参数强耦合问题提供了一种新的尝试和途径。

This paper takes the combustion system of circulating fluidized bed boiler as the research object. According to the characteristics of nonlinear, time--varying, large delay and multivariable strong coupling, we put forward decoupling control strategy based on multi modal human--simulated intelligent control strategy. According to the logic signal of intelligent logic selection circuit, it selected the corresponding human--simulated intelligent fuzzy control, so as to realize the dynamic decoupling between the main steam pressure and bed temperature. The simulation results showed that the method basically eliminated the coupling between the main steam pressure and bed temperature, the response curve transition smooth, quick response and receive the good control effect. The algorithm attempted to provide a new way to solve strong coupling problems of parameters in the circulating fluidized bed boiler combustion control.