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In the work, a suboptimal controller is proposed for an electro-hydraulic system. The controller design bases on a recent genetic algorithm. The genetic algorithm can select the weighting matrices with respect to the suboptimal control scheme. In addition, in order to improve robust performance of the electro-hydraulic system, parameter uncertainties are considered in the process of genetic search...
A class of hybrid uncertain system and its uncertainty boundary are put forward in respect to nonlinearity and uncertainty of power systems with STATCOM (static synchronous compensator). The design method of robust H∞ controller for the system is given and applied to four-node multi-machine power system with STATCOM. Decentralized robust controller for STATCOM and excitation of generators is designed...
For a class of nonlinear systems with uncertain multiple time delays, a kind of adaptive robust tracking controller is presented in this paper. First, a time-delay compensator as one of the controller's important components is designed based on Lyapunov-Krasovskii function in order to deal with the multiple time delays. Then the other important component, a dynamic adaptive neural network, is introduced...
This article surveys a class of large-scale systems with uncertainties and nonlinear interconnected items in its subsystems, and presents a kind of decentralized robust adaptive controller. First, a kind of robust Hinfin output feedback controller is designed for restraining the external disturbances, and then a dynamic structure adaptive neural network is introduced, which can eliminate the uncertainties...
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