Dynamic Response of Automatic WaterLevel Controller. Part II: Application

Constant waterlevel controllers of various kinds are used within many irrigation canal distribution systems. In a companion paper, simple transferfunction equations were developed for one style of automatic waterlevel controller, the dual acting controlled leak system. Such information can be used to study the dynamic response of proposed designs. In this paper, these transferfunction equations are used to evaluate the stability and dynamic response of the system. It is shown that these systems are always stable. Response times and control decrement are well modeled.