Development of the model of forced-exhaust ventilation for passenger carriages

Authors

DOI:

https://doi.org/10.15587/1729-4061.2016.59444

Keywords:

forced-exhaust ventilation, model, fractional-differential controllers, genetic algorithms, parameters identification

Abstract

The behavior analysis of the model of forced-exhaust ventilation for the passenger compartment carriage, based on the principle of similarity with electric circuits is performed. For quality indicators of the control object, the parameters of resistance and relative inductances determining the aerodynamic inertia of ducts and compartments are included in the model. The computations produced the charts of transients of air flows in individual compartments and the total flow. Their analysis suggests that despite the model formation only of the objects described by the first-order differential equations, the equivalent models of the carriage and individual compartments may be characterized by fractional order of differential equations. This allows us to offer a method of identifying the dynamic parameters of individual sections of the air duct and the compartment by fractional aperiodic links. Such links are a special case of the hyper-neuron. Their parameters are well defined using genetic algorithms. This reduced the order of equivalent transfer functions to 0.9...1.8 with a relative mean square error between the results of the ventilation system model transients and the solutions of fractional differential equations of no more than 0.14...1.23%.The results indicate the feasibility of constructing a control system for the ventilation unit using the theory of fractional integral-differential controllers.

Author Biographies

Виктор Владимирович Бушер, Odessa National Polytechnic University 1, ave. Shevchenko, Odessa, Ukraine, 65044

Associate Professor, Doctor of Technical Sciences

Department of electromechanical systems with computer control

Виктория Ярославовна Ярмолович, Polytechnic University 1 Shevchenko ave., Odessa, Ukraine, 65044

Senior Lecturer

Department of theoretical foundation and general electrical 

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Published

2016-02-07

How to Cite

Бушер, В. В., & Ярмолович, В. Я. (2016). Development of the model of forced-exhaust ventilation for passenger carriages. Eastern-European Journal of Enterprise Technologies, 1(8(79), 40–46. https://doi.org/10.15587/1729-4061.2016.59444

Issue

Vol. 1 No. 8(79) (2016): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2016 Виктор Владимирович Бушер, Виктория Ярославовна Ярмолович

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