Controller with double-closed-loop structure for controlling unstable lag object
A controller and double-closed-loop technology, applied in the general control system, adaptive control, control/adjustment system, etc., can solve the problems of complex controller movement, complex controller structure, unfavorable implementation, etc., to suppress the influence of interference, The effect of few adjustable parameters, good control performance and robust and stable performance
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[0017] The present invention will be further explained below in conjunction with specific embodiments.
[0018] The present invention provides a double closed-loop structure controller for controlling unstable and lagging objects. The double closed-loop structure is formed by only the main controller and the sub-controller; the sub-controller is a PD controller, which is located in the inner loop feedback loop. It is used to stabilize the unstable and lagging object and eliminate its unstable pole; the main controller is a combined integral controller, located in the forward loop of the outer loop, used to eliminate the influence of input interference and make the control system reach the specified dynamic performance index. The following describes the controller in detail.
[0019] 1. First introduce the combined integral system and its advanced control algorithm
[0020] Although the combined point system has been widely used in a series of industrial processes such as steel, petr...
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