IMPROVING METROLOGICAL PROPERTIES OF ELECTRIC TRACTION ENERGY METERS USING FUZZY CONTROLLERS

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Transport Problems

Silesian University of Technology

Subject: Economics , Transportation , Transportation Science & Technology

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VOLUME 13 , ISSUE 1 (March 2018) > List of articles

IMPROVING METROLOGICAL PROPERTIES OF ELECTRIC TRACTION ENERGY METERS USING FUZZY CONTROLLERS

Bartosz DOMINIKOWSKI * / Krzysztof PACHOLSKI / Jan ANUSZCZYK / Andrzej GOCEK

Keywords : gain factor correction; traction meter, Mamdani and Takagi-Sugeno fuzzy inference

Citation Information : Transport Problems. Volume 13, Issue 1, Pages 147-158, DOI: https://doi.org/10.21307/tp.2018.13.1.13

License : (CC BY 4.0)

Received Date : 10-December-2016 / Accepted: 10-March-2018 / Published Online: 25-March-2018

ARTICLE

ABSTRACT

This paper presents the possibility of using a fuzzy controller to correct metrological properties of an electric traction energy meter. So far, no algorithms based on fuzzy logic to determine the desired conversion value of the current channel of the electricity meter have been applied. Currently, for the mentioned channel, conventional methods of gain determination are used, based on a sequential algorithm that controls operation of the programmable gain amplifier. The proposed corrector is designed for smart and continuous modification of the conversion factor of the low-voltage input part of the current channel in the electric energy meter. The authors have performed an accurate analysis of the current function in the main circuit of an electric locomotive by creating a model of a traction inverter subject to asynchronous motor load. An essential concept is this paper is to present the possibility of having a multi-input fuzzy controller split into two-input controllers connected in parallel and cascade. By performing a computer simulation of systems used for correcting metrological properties of electric traction energy meters, it has been proven that the applied fuzzy systems, based on an expert’s knowledge of digitally controlled PGA (Programmable Gain Amplifier) type operational amplifiers, are advantageous.

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