Synthesis of two-mass electromechanical systems with cascade connection of fractional-order controllers

Authors

DOI:

https://doi.org/10.15587/1729-4061.2023.293206

Keywords:

two-mass electromechanical system, fractional-order controllers, fire lift

Abstract

The research focused on two-mass electromechanical systems widely utilized in industry. The challenge addressed in this work was to improve the synthesis of controllers for such systems to simplify it and enhance the quality of transition processes. Traditionally, the synthesis of control system loops for these systems was carried out using integer controllers and standard forms. However, this approach led to the synthesis of complex integer controllers that are difficult to implement. To overcome this issue, an original approach to the synthesis of control system loops based on the fractional characteristic polynomial is proposed. The fractional characteristic polynomial ensures the desired quality of the transition process given the implementation of a specified structure of the fractional controller. A new method of structural-parametric synthesis of fractional-order controllers is developed for the case of their cascade connection in multi-loop two-mass electromechanical systems. Additionally, an algorithm for synthesizing fractional-order controllers for the corresponding control loops is presented. This enabled the structural-parametric synthesis of fractional-order controllers for a two-mass electromechanical system with the cascade connection of controllers. Such an approach provides better quality of transition processes compared to classical integer controllers, simplifies the synthesis, and thereby enhances the quality of the synthesized systems. The impact of the synthesized fractional-order controllers using the proposed approach on the dynamic properties of the two-mass «thyristor converter – motor» system was investigated. The research results demonstrated the practical applicability of fractional controllers designed using the proposed method for the synthesis of automatic control systems of two-mass electromechanical systems in the industry.

Author Biographies

Bohdan Kopchak, Lviv Polytechnic National University

Doctor of Technical Sciences, Professor

Department of Electromechatronics and Computerized Electromechanical Systems

Andrii Kushnir, Lviv State University of Life Safety

PhD, Associate Professor

Department of Observant-Prophylactic Activity and Fire Automation

Inna Onoshko, Lviv State University of Life Safety

Department of Observant-Prophylactic Activity and Fire Automation

Sergiy Vovk, Lviv State University of Life Safety

PhD, Associate Professor

Department of Observant-Prophylactic Activity and Fire Automation

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Synthesis of two-mass electromechanical systems with cascade connection of fractional-order controllers

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Published

2023-12-29

How to Cite

Kopchak, B., Kushnir, A., Onoshko, I., & Vovk, S. (2023). Synthesis of two-mass electromechanical systems with cascade connection of fractional-order controllers. Eastern-European Journal of Enterprise Technologies, 6(5 (126), 26–35. https://doi.org/10.15587/1729-4061.2023.293206

Issue

Vol. 6 No. 5 (126) (2023): Applied physics

Section

Applied physics

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Copyright (c) 2023 Bohdan Kopchak, Andrii Kushnir, Inna Onoshko, Sergiy Vovk

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