Multidimensional Taylor network optimal control of MIMO nonlinear systems without models for tracking by output feedback. (English) Zbl 1426.93148
Summary: The actual controlled objects are generally multi-input and multioutput (MIMO) nonlinear systems with imprecise models or even without models, so it is one of the hot topics in the control theory. Due to the complex internal structure, the general control methods without models tend to be based on neural networks. However, the neuron of neural networks includes the exponential function, which contributes to the complexity of calculation, making the neural network control unable to meet the real-time requirements. The newly developed multidimensional Taylor network (MTN) requires only addition and multiplication, so it is easy to realize real-time control. In the present study, the MTN approach is extended to MIMO nonlinear systems without models to realize adaptive output feedback control. The MTN controller is proposed to guarantee the stability of the closed-loop system. Our experimental results show that the output signals of the system are bounded and the tracking error goes nearly to zero.
The MTN optimal controller is proven to promise far better real-time dynamic performance and robustness than the BP neural network self-adaption reconstitution controller.
MSC:
| 93C40 | Adaptive control/observation systems |
| 60H10 | Stochastic ordinary differential equations (aspects of stochastic analysis) |
| 93C55 | Discrete-time control/observation systems |
| 94A40 | Channel models (including quantum) in information and communication theory |
| 93E35 | Stochastic learning and adaptive control |
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