Research of the basic characteristics of the new magnetic elastic force sensors

Amirov, Sulton; Jurayeva, Kamila

doi:10.1051/e3sconf/201913901084

Cited by 7 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Synchronous and asynchronous motors have low reverse sequence resistance. Even small reverse sequence voltages in the TPSS can cause significant reverse sequence currents in engines, which, superimposed on the direct sequence currents, cause current overload of individual phases of the engine and, consequently, additional heating of the stator and rotor which leads to accelerated aging of the insulation and a decrease in the available power of the engine [21,22];  There are additional losses of active power and electrical energy due to the flow of reverse and zero sequence currents in the elements of the TPSS up to 1 kV [4];  Due to voltage losses from the reverse and zero sequence currents, additional voltage deviations in individual phases of the TPSS up to 1 kV appear, which are not eliminated by conventional (three-phase) voltage regulation means [23,24].…”

Section: Resultsmentioning

confidence: 99%

“…The operating conditions of traction power supply systems are characterized by current asymmetry and non-sinusoidal voltage, as a result of which current measuring converters (CMC) should be included in the composition of devices for automatic distribution of active and reactive loads between various power equipment (motor, generator, rectifier, etc.) switched on for parallel operation, as well as various current protection devices [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A device for detecting current asymmetry in a three-phase alternating current system

et al. 2023

View full text Add to dashboard Cite

The article discusses the issues of identifying the asymmetry of currents in a three-phase alternating current system. The design of a current converter designed to detect the unevenness of the current load in parallel branches of the current lines of various power equipment is proposed. It is shown that a positive effect is achieved by making the magnetic circuit four-rod and the introduction of rectangular cutouts with modulating and output windings on two central rods of the magnetic circuit and it is possible to determine the unevenness of the current load of three parallel branches before (in three-phase AC circuits) or after rectifier-converter installations (in DC circuits), therefore, the functionality of the device for detecting current asymmetry is expanded.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A device for detecting current asymmetry in a three-phase alternating current system

et al. 2023

View full text Add to dashboard Cite

show abstract

“…At the same time, it should be noted that special attention is currently being paid to the digitalization of the conversion of output values of AC bridges, with the possibility of entering measurement results into microprocessor units, in particular, using microcontrollers [1,2,6,10].…”

Section: Methodsmentioning

confidence: 99%

Structural method for increasing the accuracy of converting parameters of the complex resistance of traction power supply objects into a time-frequency signal

Yakubov,

Jurayeva,

Saidvaliev

2024

E3S Web Conf.

View full text Add to dashboard Cite

The article discusses the principles of operation of quasi-balanced bridge converters with closely inductive couplings between the arms, having an extended range and maximum sensitivity by creating a parametric auto-resonant mode by changing the supply frequency of the measuring bridge. To reduce the errors of the conversion elements, a conversion algorithm based on a mathematical model is proposed, and a schematic diagram of a capacitive sensor parameter into code using a microcontroller is given.

show abstract

“…Input currents of reactive power sources in the PSS -when phase currents flow from the first IА, second IB, third IC, primary windings of the sensor, in the common-base magnetic core and parallel cores Фµ1, Фµ2 and Фµ3 magnetic currents are generated, which also flow through the air gap between the cores [4,5].…”

Section: Methodsmentioning

confidence: 99%

Analysis of three-phase asymmetrical currents in the secondary voltage of signal change sensors in the power supply system using graph models

Abubakirov,

Kurbaniyazov,

Bekimbetov

2024

E3S Web of Conf.

View full text Add to dashboard Cite

This article presents the principles of modeling three-phase asymmetrical currents in the form of secondary voltages of signal change sensors in the power supply system. The classical methods of signal transformation modeling do not provide the necessary accuracy due to the complexity in representing the interdependence between input and output quantities and parameters, as well as the difficulty in capturing the interchain dependencies and associated physical-technical effects. The analysis in this work focuses on the principles of signal transformation based on graph models, including the physical and technical effects of the three-phase primary current electromagnetic sensor that creates the interacting magnetic fields. The modifications to elements with nonlinear parameters and the values of the electric network currents in the power supply system during estimation have been considered as an object with concentrated parameters. In contrast to traditional single-phase current transformers, the complex transducing components, weight, and volume of the items are laborintensive when used in combined power measurement and control systems. They also do not provide the universality of the output value when interfacing with microprocessors and electronic technologies in intelligent systems.

show abstract

Research of the basic characteristics of the new magnetic elastic force sensors

Cited by 7 publications

References 1 publication

A device for detecting current asymmetry in a three-phase alternating current system

A device for detecting current asymmetry in a three-phase alternating current system

Structural method for increasing the accuracy of converting parameters of the complex resistance of traction power supply objects into a time-frequency signal

Analysis of three-phase asymmetrical currents in the secondary voltage of signal change sensors in the power supply system using graph models

Contact Info

Product

Resources

About