The use of a digital controller in the loading system of the test bench to improve the accuracy of simulating the modes of oil pumping units

Timur Petrov,Vladimir Kornilov,Ramil Gibadullin,Alfred Safin,Nikita Kuvshinov,Alexey Tsvetkov,A Fedyukhin,S Dixit

doi:10.1051/e3sconf/202022001072

Timur Petrov, Vladimir Kornilov + Show 6 more

Open Access

https://doi.org/10.1051/e3sconf/202022001072

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Abstract

Modern trends in the development of technologies are based on the need to conduct experimental studies of the developed equipment in laboratory conditions with the maximum approximation of operating modes to real ones. Such studies are impossible without the development of specialized stands with test automation systems. In modern test equipment systems, devices are often used to create a mechanical load on the shaft of the electric motor under study. As such a device, a system of frequency converter load asynchronous electric motor has been proposed and implemented, which has been tested at the test bench and has proven itself from the best side in comparison with traditional circuits using DC motors.

Highlights

In the development and design of electric drives for oil pumping units used in installations, the problem arises of developing analytical and experimental methods and hardware and software for monitoring the performance of electric drives based on permanent magnet synchronous motors in normal and emergency operating modes
The use of a load asynchronous electric motor as part of the test bench revealed a number of disadvantages: overheating of the asynchronous electric motor operating in the opposing mode and low accuracy of creating the load torque and the speed of the system response [4]
MFS - signal conditioning module; Tz is the value of the given control signal; MBB signal input-output module as part of the stand control system; Driver - load frequency converter of the stand; AD - load electric motor; DM - torque sensor on the load motor shaft; MDM is a digital converter of the torque sensor

Summary

Introduction

In the development and design of electric drives for oil pumping units used in installations, the problem arises of developing analytical and experimental methods and hardware and software for monitoring the performance of electric drives based on permanent magnet synchronous motors in normal and emergency (critical) operating modes. One of the possible ways to solve this problem is long-term field tests on existing installations, which entails the need to attract large material resources and attract a large number of specialists involved in setting up individual systems that are part of the electric drive. The use of a load asynchronous electric motor as part of the test bench revealed a number of disadvantages: overheating of the asynchronous electric motor operating in the opposing mode and low accuracy of creating the load torque and the speed of the system response [4]. The article will talk about the developed stand, about its structure and features, and the shortcomings that have arisen. Some of these problems can be solved by using a digital regulator, the advantages of which will be presented in the article. The results from the introduction of this regulator into the stand will be demonstrated

Test bench composition

Benefits of a digital controller

Digital controller application

Findings

Conclusion