Voltage stabilization of a controlled autonomous magnetoelectric generator with a magnetic shunt and permanent magnet excitation

Chumack, Vadim; Bazenov, Volodymyr; Tymoshchuk, Oksana; Kovalenko, Mykhailo; Tsyvinskyi, Serhii; Коваленко, І. М.; Tkachuk, Ihor

doi:10.15587/1729-4061.2021.246601

Cited by 6 publications

(13 citation statements)

References 7 publications

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“…An important feature of the model is taking into account the saturation of the ferromagnetic system through the dependence of the mutual inductance of the windings on the current of the additional magnetizing winding L m  f (i f ). This dependence was obtained in previous works [1,2] as a result of fi eld mathematical modeling.…”

Section: Introductionsupporting

confidence: 76%

“…В. М. Головко 1,2 , М. Я. Островерхов 2 , М. А. Коваленко 2 , І. Я. Коваленко 2 , Д. В. Ципленков 3 1 -Інститут відновлюваної енергетики НАН України, м. Київ, Україна 2 -Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського», м. Київ, Україна 3 -Національний технічний університет «Дніпровська політехніка», м. Дніпро, Україна, e-mail: Tsyplenkov.dv@ nmu.one Мета. Розробка математичної моделі автономної вітроелектричної установки на основі торцевого електрогенератора з подвійним статором і комбінованим збудженням для оцінки методів підвищення ефективності перетворення механічної енергії вітру в електричну.…”

Section: математичне моделювання автономної вітроелектричної установк...unclassified

“…The axial fl ux synchronous magnetoelectric generator with combined excitation combines the advantages of permanent magnet generators with the simultaneous possibility of controlling the magnetic fl ux in the air gap using one or more additional magnetizing windings [1,2]. This design is promising for use in wind power plants [3,4], as it allows you to abandon the multiplier and expand the limits of regulation of the autonomous wind power system [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…One of the main functional parameters of the generation system is the output voltage of the electric generator [2,3]. The stability and reliability of the autonomous consumer depends on it.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical simulation of autonomous wind electric installation with magnetoelectric generator

Golovko¹,

Ostroverkhov²,

Kovalenko³

et al. 2022

Nauk. visn. nat. hirn. univ.

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Purpose. Development of a mathematical model of an autonomous wind power plant based on an end-generator with a double stator and combined excitation to evaluate methods for improving the efficiency of conversion of mechanical wind energy into electricity. Methodology. The research used methods of general theory of wind power plants, methods of mathematical modeling, which are based on the numerical solution of nonlinear differential equations to evaluate methods for correcting the output power in Matlab-Simulink by modifying standard units. Findings. A numerical simulation mathematical model of an autonomous wind power plant consisting of a magnetoelectric generator with an axial magnetic flux with combined excitation and a double stator has been developed. The model was created to study the parameters and characteristics of the installation, as well as to evaluate methods and means to improve the efficiency of conversion of wind energy into electricity. According to the research, it is established that a more effective method for regulating the output power of the generator in the wind turbine is the use of additional winding for magnetization, compared with the use of additional capacity. The latter provides up to 716% increase in output power, while using the magnetizing winding can increase the output power to 3235%. The results obtained by the authors allow further developing a number of methods to increase the efficiency of conversion of mechanical energy of the wind turbine rotor into electrical energy. Originality. The mathematical model developed for the first time, in contrast to the existing ones, takes into account the presence of a double stator, an additional winding for magnetization of the magnetic system and the axial nature of the circuit of the main and additional magnetic flux. The developed model also takes into account the change in the parameters of the electric generator with axial magnetic flux when changing the parameters of the wind, the rotor of the wind turbine and the load. The model is designed to analyze the possibility of adjusting the output power of the generator when the wind speed changes. Practical value. The simulation results indicate the prospects of industrial implementation of wind power plant based on magnetoelectric generator for their use as autonomous electrical installations and as part of shunting power systems.

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Section: Introductionsupporting

confidence: 76%

Section: математичне моделювання автономної вітроелектричної установк...unclassified

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mathematical simulation of autonomous wind electric installation with magnetoelectric generator

Golovko¹,

Ostroverkhov²,

Kovalenko³

et al. 2022

Nauk. visn. nat. hirn. univ.

View full text Add to dashboard Cite

show abstract

“…Under the condition of a change in wind speed, the electric generator gives active power to the load from ≈20 W to 270 W at a wind speed of 8 m/s. This makes it possible to increase the efficiency of converting mechanical wind energy into electrical energy by 15-40 % [11,13].…”

Section: Discussion Of Results Of Controlling the Maximum Power Of An...mentioning

confidence: 99%

Development of the control system for taking off the maximum power of an autonomous wind plant with a synchronous magnetoelectric generator

Ostroverkhov

Chumack

Kovalenko

et al. 2022

EEJET

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The object of this study is electromechanical processes in an autonomous wind power plant with a magnetoelectrical generator. Under actual conditions, the wind speed is constantly changing. The wind turbine works as efficiently as possible only at the rated value of wind speed. When the wind speed changes, the efficiency of converting mechanical wind energy into electrical energy decreases. Controlling the power of the electric generator when the wind speed changes is a relevant scientific and technical task. A maximum power selection control system based on the parameters of an experimental sample of a synchronous magnetoelectric generator has been designed and investigated. A feature of the synthesized control system is that it was developed on the basis of the concept of inverse dynamics problems in combination with minimization of local functionals of instantaneous energy values. The control law provides weak sensitivity to parametric perturbations of the object and carries out dynamic decomposition of the interdependent nonlinear system, which predetermines its practical implementation. Transient processes of the power, voltage, and current of the stator, as well as the voltage and excitation current were established when the wind speed changes from 3 to 8 m/s, as well as when the active electrical resistance of the load changes. The results of this study confirm the effectiveness of the maximum power take-off control system when wind speed and load change. When the wind speed changes within 3–8 m/s and the load by 50 %, the efficiency of converting mechanical wind energy into electrical energy increases by 15–40 % compared to the traditional magnetoelectric system. The findings of the current study are recommended for practical use in autonomous power plants based on wind turbines with generators with permanent magnets.

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Designing a voltage control system of the magnetoelectric generator with magnetic flux shunting for electric power systems

Ostroverkhov

Chumack

Tymoshchuk³

et al. 2022

EEJET

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The object of research in this work is a three-phase magnetoelectric generator with magnetic flux shunting based on industrial induction electric motors. The presence of a magnetic shunt makes it possible to control the voltage of the generator by changing the excitation current in the non-contact electrical winding of the magnetic shunt, which is powered by direct current. Thus, the problem of stabilization of the output voltage of the generator with permanent magnets is solved when the speed of rotation and load change. This paper reports the construction of a three-dimensional field mathematical model of the generator, which allows for electromagnetic calculations of the generator with specified parameters, taking into consideration the influence of final effects, magnetic scattering fields, as well as their radial-axial nature. The results of the calculation of the electromagnetic field are the initial parameters for building a simulation model in the MATLAB-Simulink environment. A simulation model of a magnetoelectric generator with magnetic flux shunting under conditions of changing rotational speed and load has been constructed in the MATLAB-Simulink environment. On the basis of the built models, the performance characteristics of a magnetoelectric generator with magnetic flux shunting were established, which show the limits of control of the output voltage. Adjusting characteristics were determined at zero and rated shunt current for different types of load. The adjusting characteristics of the generator are presented at the rated voltage of the generator for different types of load and with an increase to 150 % of the rated value. The study's results show the high efficiency of the voltage control system of a magnetoelectric generator with a magnetic shunt at different speeds of rotation and load

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Voltage stabilization of a controlled autonomous magnetoelectric generator with a magnetic shunt and permanent magnet excitation

Cited by 6 publications

References 7 publications

Mathematical simulation of autonomous wind electric installation with magnetoelectric generator

Mathematical simulation of autonomous wind electric installation with magnetoelectric generator

Development of the control system for taking off the maximum power of an autonomous wind plant with a synchronous magnetoelectric generator

Designing a voltage control system of the magnetoelectric generator with magnetic flux shunting for electric power systems

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