Control Method of Active Electronic Ladder Circuit Based on Iterative Learning Control
An iterative learning control and iterative learning technology, applied in the control field of active electronic ladder circuits, can solve the problems of system control accuracy and dynamic quality reduction, slow convergence speed, etc.
Active Publication Date: 2020-06-16
JIANGNAN UNIV
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Problems solved by technology
Fuzzy control has strong robustness and fault-tolerant performance, but due to its fuzzy characteristics, the control accuracy and dynamic quality of the system will be reduced.
Neural network control has a strong adaptive ability, but it must have known specific engineering application data samples, and it also needs a long enough time for online or offline learning and training, so its convergence speed is slow
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[0025] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0026] The application discloses a control method of an active electronic ladder circuit based on iterative learning control, the method comprising the following steps:
[0027] Step 1: Establish the state-space equation of the active electronic ladder circuit according to Kirchhoff's voltage law and Kirchhoff's current law.
[0028] Adopted in active electronic ladder circuit figure 2 The structure shown is taken as an example, that is, an active electronic ladder circuit includes several nodes, and the several nodes are connected in sequence to form a series circuit, which is connected with a voltage source U(t) and a current source i(t). The circuit structure of each node in the active electronic ladder circuit is the same, and the circuit structure of the pth node is as follows figure 1 As shown, p is a parameter and the initial value...
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The invention discloses an iterative learning control based control method of an active electronic ladder circuit, and relates to the field of iterative learning control. The active electronic laddercircuit is characterized by periodical operation, an iterative learning control algorithm is applied to the active electronic ladder circuit to design an iterative learning control law, a necessary and sufficient condition for system stability and batch monotone convergence of output tracking errors is obtained according to the stability condition in the repetition process within the finite frequency domain of a KYP lemma, the condition is converted into corresponding LMI so as to solve the iterative learning control law, and an input vector of the active electronic ladder circuit is determined according to the iterative learning control law, thus, circuit control is realized. The algorithm is simple, the control precision is high, and engineering is easy to realize, the system characteristics in the time and batch dimension are taken into consideration, the control method can be directly applied to the active electronic ladder circuit which is more complex and includes extra node dimension, and the control precision is higher.
Description
technical field [0001] The invention relates to the field of iterative learning control, in particular to a control method of an active electronic ladder circuit based on iterative learning control. Background technique [0002] Active electronic ladder circuits consist of some identical units regularly distributed in space, realized by longitudinal and transverse resistance or reactance. A single subcircuit is structurally very simple, but the subcircuit directly interacts with its neighboring cells, and the resulting active electronic ladder circuit can exhibit rich and complex behaviors, such as figure 1 A schematic diagram of a single node circuit for an active electronic ladder circuit, figure 2 Circuit schematic of a single active electronic ladder connected for multiple nodes. This type of ladder circuit is currently used to analyze LED light circuits, which contain a series of light-emitting elements used to produce a specific visual image. At the same time, the ...
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IPC IPC(8): G05B13/04
Inventor 陶洪峰魏强周龙辉
Owner JIANGNAN UNIV