【摘要】 在渠道运行控制系统中 ,只能用有限的水位测量来确定节制闸门的开度调节 ,而渠道水体经常受到外来干扰 ,水位传感器存在量测误差 ,将这些干扰和误差按白噪声处理 ,应用最优估计理论设计渠道运行系统观测器 ,求解观测器增益矩阵 Ke。通过对实验渠道的模拟仿真说明所设计的观测器能跟踪水流状态的变化 ;用观测器估计的水流状态反馈能将渠道水面线从初始位置控制转移到目标位置 ;闸门运行是稳定的。提出的渠道测量—控制系统设计方法可以作为渠道自动控制设计的理论参考更多还原

【Abstract】 For a canal operating control system, lock operation usually is regulated mainly according to limited water level measures. In real canal operation, canal water level fluctuates with environmental disturbance, and there is measurement error in level sensors. The water level fluctuation and measurement error is dealt with as white noise. The intensity of noise is calculated. Optimal estimation theory is applied to design observer for canal control system, and to calculate observer gain matrix K e. Operation simulation results with an experimental canal demonstrate that estimated flow state traces well the real flow state in canal system, and that feedback control with estimated flow state can transfer the surface of canal pool from initial position to object position. The lock operation is steady and reliable. The design method of canal measure control system can be applied in design of canal automatic control system.更多还原