摘要
为了优化脱硫除尘用离心泵流量控制系统数学模型,引入了脱硫除尘用离心泵流量控制的方法,设计了脱硫除尘用离心泵的H∞控制系统。分别计算出变频器,电机和离心泵的数学模型,得到脱硫除尘用离心泵流量控制系统数学模型,从而推导出其状态空间表达式,并结合MATLAB软件对控制系统进行稳定性、动态性等性能分析。对脱硫除尘用离心泵流量控制系统而言,经过H∞优化后的流量控制系统性能得到改善,无明显的超调量,控制系统性能良好。仿真与实验显示,相比传统的PID控制算法,H∞控制系统能够使控制系统的响应时间缩短0.50 s。
In order to optimize the mathematical model of the flow control system of centrifugal pumps for desulfurization and dust removal, the method is introduced based on the flow control of centrifugal pumps for desulfurization and dust removal. The H∞ control system of centrifugal pumps for desulfurization and dust removal is determined. The mathematical model of the frequency converter, the motor and the centrifugal pump is calculated respectively. The mathematical model of the flow control system of centrifugal pumps for desulfurization and dust removal is obtained and the state space representation is derived. The steady-state anddynamic performanceof control system is analyzedcombined with Matlab software. For the flow control system of centrifugal pumps for desulphurization and dust removal, the performance ofthe flow control systemis obviously improvedafter the H∞ optimization. The system has no obviousovershoot and has good control performance. Simulations and experiments reveal thatthe H∞control system can make the response time of control system shorten 0.50 secondscompared withthe traditional PID control algorithm.
出处
《铜仁学院学报》
2018年第3期68-75,共8页
Journal of Tongren University
关键词
脱硫除尘
流量控制
H∞控制
desulfurization and dust removal, flow control, H∞ control
