L.I. Mazurenko

National Academy of Sciences of Ukraine

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O.V. Dzhura

Institute of Electrodynamics

M. O. Shykhnenko

Institute of Electrodynamics

O.V. Bibik

Institute of Electrodynamics

МО

Максим Олегович Шихненко

K. M. Vasyliv

Lviv Polytechnic National University

A. V. Kotsiuruba

National University of Civil Defense of Ukraine

ВГ

В.В. Гребеніков

Institute of Electrodynamics

O.A. Bilyk

Institute of Electrodynamics

ОА

Олександр Анатолійович Білик

РГ

Р.В. Гамалія

Institute of Electrodynamics

Cooperative Institutions

Institute of Electrodynamics

National Academy of Sciences of Ukraine

Kremenchuk Mykhailo Ostrohradskyi National University

ORCID

North-West University

National Technical University "Kharkiv Polytechnic Institute"

National University of Civil Defense of Ukraine

Oregon Institute of Technology

University of Minho

Louisiana State University

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Calculation of Magnetic Losses with Non-Uniform Distribution of Magnetic Induction in the Stator Tooth of a Switched Reluctance Motor

Problems of the Regional Energetics (2024)

O.V. Bibik L.I. Mazurenko O.M. Popovych Ivan Golovan M. O. Shykhnenko

The aim of this study is to investigate and determine the effect of accounting for the non-uniform distribution of magnetic induction (by detailing the stator tooth model) on the calculation results of magnetic losses in the stator teeth of a switched reluctance motor in quasi-steady-state modes. To achieve this goal, dependencies of phase flux linkage, electromagnetic torque of the motor, and additionally, dependencies of the root mean square values of magnetic inductions in stator tooth elements on the rotor angle and current have been determined using the finite element method. An investigation of dynamic modes of the switched reluctance motor based on an improved simulation model has been conducted at various values of constant load torque. Dependencies of magnetic inductions over time for each stator tooth element for the studied quasi-steady-state operating modes have been obtained. Magnetic losses have been calculated, taking into account the maxima of the temporal dependencies of root mean square values of magnetic induction in stator tooth elements. The most important outcome is a quantitative assessment of the influence of the non-uniform distribution of magnetic induction on the calculated value of magnetic losses based on the detailing of the stator tooth model in the operational modes of the switched reluctance motor compared to the traditional approach. The significance of the work lies in developing an approach to refining the calculation of magnetic losses by considering local saturation in the magnetic circuit during the operation of the switched reluctance motor.

Reluctance motor

Magnetic reluctance

10.52254/1857-0070.2024.1-61.02

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Steady-state analysis of a hybrid power supply system using an induction generator with a shunt AC/DC converter

Electrical Engineering & Electromechanics (2024)

L.I. Mazurenko O.V. Dzhura M. O. Shykhnenko

Hybrid power supply systems (HPSSs) are considered as a good option for electric power supply of remotely located from the grid consumers due to significant fuel savings compared to diesel sets. Quick development and improvement of HPSSs may be achieved using specialized methodologies and programs. In the paper a schematic diagram is proposed and operation principles of a 400 V / 50 Hz HPSS were developed. The system’s main component is the master generating unit of the hydropower plant using a 250 kW induction generator (IG). The voltage of the system is controlled by the controller of the AC/DC power converter. The electrical frequency of the system is controlled by the speed controller of the hydropower turbine. A wind turbine, an energy storage system and a regulated dump load are connected to the IG through the AC/DC converter. Goal. The paper aims to develop a methodology for steady state performance analysis of the hydraulic turbine driven isolated IG operating in parallel through an AC/DC power converter with additional sources and consumers of active power. Methodology. The methodology for evaluation of performance characteristics of the IG operating in the proposed system has been developed. The methodology is based on the equivalent circuit of the system, equations of active and reactive power balance in the system and the superposition method. Results. The equations of frequency, voltage and power regulators of the system are given. The performance characteristics of the IG operating in the system supplying resistive and RL load in «constant voltage – constant frequency» mode are obtained. Novelty. The developed methodology is innovative in taking into account the control algorithms of the system. The comparative analysis of the IG’s performance operating in the stand-alone generating unit and in the generating unit connected to the proposed system is performed. Practical value. The developed methodology can be used for development and performance improvement of hybrid AC power systems.

10.20998/2074-272x.2024.2.10

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Transients in a transistor-switched capacitor regulator of a stand-alone induction generator supplying a single-phase load

2017 International Conference on Modern Electrical and Energy Systems (MEES) (2017)

L.I. Mazurenko O.V. Dzhura Stepan Shevchuk

This paper presents a stand-alone three-phase induction generator with a transistor-switched capacitor regulator tied to the electric machine stator winding. The stator winding phases are interconnected according to the so called Smith winding connection. The generator supplies an isolated single-phase passive load. The transistor-switched capacitor regulator dynamic model has been derived from its equivalent circuits and is augmented with an RCD snubber. The regulator has to regulate the generator voltage according to a bang-bang control algorithm. Transient response of the generator excitation system based on its time domain dynamic model simulation is evaluated after switching on and off the transistor.

Snubber

Transient (computer programming)

10.1109/mees.2017.8248901

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Моделювання автономної енергосистеми постійного струму з асинхронними генераторами

L.I. Mazurenko Александр Васильевич Джура Владимир Иванович Романенко

Inverter excited induction generators (IEIG) because of their ruggedness and brushless construction are well suited for autonomous applications. Equipped with electronic excitation systems the IEIGs can generate stabilized dc voltage and may be integrated in dc autonomous power systems (APS). The dc APS with diesel (gas) generators are potentially more effective than ac APS due to the possibility of varying diesel engine speed. In this paper a dc APS equipped with two IEIGs operated parallel on a common load and driven by diesel engines is simulated. The dc APS model used includes models of diesel engines, induction machines and inverters with taking into account saturation effect, IEIG and diesel engine control systems. Active energy control in the system is provided in accordance with the reference power curves. The results of simulation have shown stable operation of the system with the developed control techniques.

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Mathematical Model, Research and Improvement of the Switched Reluctance Generator Voltage Stabilization Methods

M. O. Shykhnenko L.I. Mazurenko O.V. Dzhura O.A. Bilyk

A mathematical model of the switched reluctance generator is developed, taking into account losses in windings, magnetic losses and core saturation. The adequacy of the model is verified by comparing the instantaneous values of the phase currents of the proposed model with the known one. The methods of generator voltage stabilization by changing the commutation angles and by regulating the average value of the stator winding current are investigated, the advantages and drawbacks of each method are analyzed. It is recommended to use in practice more efficient method of adjusting the average value of the stator current.

Commutation

Magnetic reluctance

Reluctance motor

Shunt generator

10.1109/ieps.2018.8559578

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Wind Energy Conversion System with Induction Generators Connected to a Single Static Compensator

2021 IEEE International Conference on Modern Electrical and Energy Systems (MEES) (2019)

L.I. Mazurenko O.V. Dzhura Maxim Kramar M. O. Shykhnenko

In this paper a new configuration of a wind energy conversion system (WECS) supplying power to the dc-link regulated load is presented. The system is developed with two induction generators (IGs) connected to variable speed wind turbines (WTs). With the aim to concentrate the IGs power flow control in one unit and reduce the installed in WT gondola equipment weight a single static compensator (STATCOM) outside WTs is used. Based on the vector control technique the IGs power flow controller is proposed. Simulations are performed to validate the capability of the system to supply dc load at two operation modes.

Static VAR compensator

10.1109/mees.2019.8896405

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МОДЕЛЮВАННЯ ПЕРЕХІДНИХ ПРОЦЕСІВ У ВІТРОУСТАНОВЦІ МАЛОЇ ПОТУЖНОСТІ З МАГНІТНИМ РЕДУКТОРОМ І ЕЛЕКТРОГЕНЕРАТОРОМ НА ПОСТІЙНИХ МАГНІТАХ

Vidnovluvana energetika (2024)

В.В. Гребеніков O.D. Podoltsev L.I. Mazurenko Р.В. Гамалія

У роботі розроблена комп’ютерна Simulink-модель вітроенергетичної установки малої потужності (3 кВт), в який замість механічного редуктора використовується магнітний редуктор, а також наявний синхронний генератор з постійними магнітами. На основі цієї моделі проведені розрахунки пов’язаних механічних та електричних процесів у двох режимах її роботи – пусково-му режимі та режимі миттєвого коливання швидкості вітру, що діє на вітрову турбіну (від 10 до 14 м/с і потім знову 10 м/с). За результатами проведених розрахунків показано, що в перехідних режимах при виник-ненні короткочасних динамічних перевантажень обидва ротори магнітного редуктора на пев-ний проміжок часу можуть випадати з синхронного руху і далі, залежно від параметрів редуктора (а також інших елементів). Електромеханічна система або досягає певного робочого усталеного режиму, або втрачає можливість передавання механічної потужності від вітрової турбіни до генератора внаслідок випадіння із синхронізму роторів магнітного редуктора. При цьому переважно від значення максимального магнітного моменту редуктора залежить стійкість роботи вітроенергетичної установки в цілому. Бібл. 13, рис. 8.

10.36296/1819-8058.2024.3(78).84-91

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The research of the switched reluctance starter-generator in starter mode

Bulletin of NTU Kharkiv Polytechnic Institute Series Electrical Machines and Electromechanical Energy Conversion (2020)

L.I. Mazurenko Максим Олегович Шихненко O.V. Dzhura Олександр Анатолійович Білик

Using the previously developed mathematical model, the investigation of the switched reluctance starter-generator in starter mode powered by battery was performed. The calculations of a starter-generator starting processes was performed when changing the moment of inertia, the semiconductor converter capacitor capacitance and the battery resistance. Their influence on the duration and the efficiency of starting processes in the absence of the phase current limit was determined. It is concluded that it is necessary to develop new principles of formation the switched reluctance starter-generator starter modes processes to provide a predetermined starting time, phase currents and minimum energy consumption of the battery.

Starter

10.20998/2409-9295.2020.3.16

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Analysis of the self-excitation of an asynchronous rectifying generator with a transistorized converter

A. I. Lishchenko L.I. Mazurenko

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The excitation processes from the battery and the influence of parameters on the switched reluctance generator performances

Bulletin of NTU Kharkiv Polytechnic Institute Series Electrical Machines and Electromechanical Energy Conversion (2019)

L.I. Mazurenko Максим Олегович Шихненко O.V. Dzhura Олександр Анатолійович Білик

Investigation of excitation processes of the switched-reluctance generator (SRG) from the battery with parameters change was performed. Influence of the capacitor capacitance, the phase windings resistance and the switching angles on the SRG external characteristics has been defined. According to the research results, measures were proposed to reduce the battery capacity and to lower the excitation process duration while maintaining the reliability of this process.

10.20998/2409-9295.2019.4.18

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