SYNTHESIS OF PID CONTROLLERS FOR NONLINEAR NONSTATIONARY PLANTS
A. S. Vostrikov, G. A. Frantsuzova
Novosibirsk State Technical University, pr. Karla Marksa 20, Novosibirsk, 630073 Russia
Keywords: управление, ПИД-регулятор, нелинейный объект, метод локализации, разнотемповые процессы, control, PID controller, nonlinear plant, localization method, multirate processes
Abstract
A possible approach to the calculation of standard controller parameters based on the localization method is considered. It is shown that the controllers designed in this way completely solve the problem of stabilization of first- and second-order nonlinear nonstationary plants. Variants of implementation of standard controllers and recommendations for calculating their parameters are presented and the properties of the obtained automatic systems are investigated. It is noted that a general characteristic feature of systems with the proposed PID controller is the occurrence of fast motion components against the background of slow work processes. Results of numerical modeling illustrate the main properties of the systems considered.
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