摘要
基于多变量系统的性能评价,论文首先提出了一套完整的基于最小方差基准界的性能评价体系,该体系包括4个最小方差基准界,2个最小方差上界,2个最小方差下界。然后将此应用到火电厂协调控制系统的性能评价中,通过对比不同控制策略下系统的性能,找到了适合于多变量系统的较好控制策略。对比结果表明,自抗扰解耦控制综合了自抗扰控制和解耦补偿器的优点,能更进一步解除变量间的耦合,从而能更进一步提高系统的性能。
Based on the performance assessment of multivariable control systems, a complete theoretical system based on minimum variance benchmark bounds is put forward in this paper. The theoretical system consists of four minimum variance benchmark bounds, two upper bounds and two lower bounds. Then, these minimum variance benchmark bounds are applied to assess the performance of the coordinated control system in thermal power plant. By comparing the performance of different control strategies, the strategy which can improve the performance of the multivariable control system more effectively is found in this paper. Simulation results show that ADRC decoupling control can further remove the coupling between variables, thus improving the performance of the system.
出处
《控制工程》
CSCD
北大核心
2017年第9期1871-1876,共6页
Control Engineering of China
关键词
性能评价
最小方差基准界
自抗扰控制器
解耦控制
关联矩阵
多变量系统
Performance assessment
minimum variance benchmark bound
active disturbance rejection controller
decoupling control
interactor matrix
multivariable system
