【作者】 禹红杰；

【导师】 刘向杰； 郝自力；

【作者基本信息】 华北电力大学（北京） ， 控制工程， 2010， 硕士

【摘要】 火电单元机组协调控制系统具有多变量、强耦合、大迟延、强非线性等特性,常规机炉协调控制策略远远不能满足电网对机组的要求,因此研究适合于大型火电机组先进协调控制方案,对机组的安全经济稳定运行至关重要。考虑到模型预测控制可以有效的解决变量间的耦合问题,本文针对一个330MW燃煤单元机组的两输入两输出模型,设计了多变量广义预测控制器,并与传统的PID控制器进行比较,采用Matlab进行编程仿真,仿真结果表明广义预测控制有效地解决了变量间的耦合,并在大范围工况变化情况下能够取得满意的控制效果。更多还原

【Abstract】 The coordinated control system for fossil-fired boiler-turbine unit is usually featured by multi-variable, strong couple, large delay, nonlinear characteristics, the conventional control strategy can not meet the requirement of the grid, thus the study for effective advanced control scheme is essential for the economic and stable operation of the unit. Given the fact that model predictive control can effectively solve the couple between variables, this paper designs a multivariable generalized predictive controller (GPC) for a 330MW boiler-turbine unit model with two inputs and two outputs. The stimulation result is compared with the traditional PID controller’s using Matlab programming. The results show that GPC gets a good performance under different power conditions.更多还原