摘要
从分数阶微积分的数学定义推导出分数阶微积分的数值表达式,并利用粒子群优化算法辨识得到分数阶模型,将其应用于超超临界燃煤机组,得到燃料量与中间点压力之间的分数阶模型和整数阶模型,在所求模型的基础上设计了分数阶内模控制器,对整数阶控制器和分数阶控制器的控制效果进行对比。结果表明:分数阶内模控制器比整数阶内模控制器具有更好的控制效果和抗干扰能力。
The mathematical expression of fractional-order calculus was derived from the fractional-order calculus definition,and then the particle swarm optimization algorithm was applied to identify the fractional-order model for the relationship between the fuel flow and intermediate-point pressure in supercritical power plant.On this basis,a fractional internal model controller（IMC）was designed.Moreover,the control effects of this IMC was compared with that of the conventional integer-order IMC.The results show that the fractional-order IMC this paper designed has better control effect and anti-disturbance ability.
出处
《热力发电》
CAS
北大核心
2016年第4期106-110,共5页
Thermal Power Generation
基金
河北省教育厅2012科研项目资助项目(z2012011)
关键词
热工控制
分数阶
整数阶
内模控制器
微积分
粒子群算法
thermal engineering control
fractional-order
integer-order
internal model controller
calculus
particle swarm optimization
