Improving dynamic stability of a wind turbine using a magnetic continuously variable transmission

Udalov, Sergey N.; Pristup, A. G.

doi:10.1109/dynamics.2016.7819102

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…Também observa-se que alterações no plano original da campanha criam vulnerabilidades e o fator humano é determinante para isso, pois Roberts afirmava que Star Citizen custaria até $14 milhões, mas mudou o discurso em busca de "um jogo maior e mais desafiador, um sonho a se realizar", o que após arrecadar quase $240 milhões de dólares, continua sendo apenas um sonho (NEHKARA et al, 2019;ROBERTS, 2015;YIN-POOLE, 2012 Ilhamento 136,137,138,139,140,141,142,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,160,164,165,168 Instalações elétricas 77,78,79,80,82,83,85,86,242,243,250 L Localização 29,30,32,33,34,36,42,43,45,151,152,171,175,176,177,…”

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Análise Da Segurança Das Instalações Elétricas De Uma Edificação Localizada No Município De Teófilo Otoni-Mg

Amaral¹,

Moura²

2021

Engenharias: Metodologias E Práticas De Caráter Multidisciplinar 3

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Direitos para esta edição cedidos à Atena Editora pelos autores. Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais. Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica. A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…Remoção de sombras 112, 113, 116, 118 Risco nuclear 12 S Segurança 1,2,4,5,6,10,11,12,13,14,16,18,29,30,32,33,34,37,38,40,41,44,58,59,63,74,77,78,79,80,82,85,86,88,100,101,111,121,136,159,172,173,176,206,…”

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confidence: 99%

Análise Da Segurança Das Instalações Elétricas De Uma Edificação Localizada No Município De Teófilo Otoni-Mg

Amaral¹,

Moura²

2021

Engenharias: Metodologias E Práticas De Caráter Multidisciplinar 3

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“…Therefore, such design eliminates higher harmonics generation in the network. For realization of control, an inverter and a rectifier are used, which power is lower than power of an inverter between the generator and the power system in the case of the direct-drive conception (Atallah et al, 2004; Udalov et al, 2016). Additional power supply for the winding control unit can be realized from the power system directly.…”

Section: Proposed Solutionmentioning

confidence: 99%

Increasing the regulating ability of a wind turbine in a local power system using magnetic continuous variable transmission

et al. 2018

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The paper is devoted to investigations of dynamic processes in a local power system consisting of wind turbines with a magnetic continuously variable transmission. Due to low inertia of wind turbine generator rotors, there is a problem of ensuring dynamic stability at sharp load changes or at short circuits in an autonomous power system. To increase dynamic stability of the system, two algorithms for controlling a magnetic continuously variable transmission are presented. The first algorithm stabilizes a rotation speed of the high-speed rotor of a magnetic continuously variable transmission from the generator side in a local power system consisting of wind turbines with uniform synchronous generators with permanent magnets having equal moments of inertia. Undoubtedly, local power systems having only the wind turbines with equal mechanical inertia time constants are not widely used due to stochastic nature of wind energy. Therefore, wind power systems are combined with a diesel generator or a gas-turbine unit. Investigations show that the use of the only speed stabilization algorithm is not enough for such power systems, because there is a possibility for occurrence of asynchronous operation under specific power changes due to the difference in moments of inertia of generator rotors. Thus, the second algorithm uses the phase shift compensation in accordance with a primary generator in an autonomous power system consisting of non-uniform generators having different mechanical inertia time constants. As a primary generator, a diesel generator or a gas-turbine unit having a primary speed controller may be used. It should be noted that algorithms of stabilization for speed and phase angle are extended by an inertial circuit of aerodynamic compensation for torque of rotation from the wind turbine side to reduce loading on an energy storage unit of the magnetic continuously variable transmission at disturbances from the generator side and the turbine side.

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“…Примем в качестве допущения в уравнениях (10) Известно, что СГПМ можно описать следующей системой уравнений [11]:…”

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Control of a Wind Power Plant with a Synchronous Permanent Magnet Generator and a Magnetic Variator

Achitaev

Barkhatov

Udalov

2021

Journal of Siberian Federal University. Engineering &Amp; Technologies

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Currently, the use of wind power plants with magnetic speed reduction is beginning to develop in the world literature. Features of the application of these systems in combination with a wind power plant allows you to solve the issue of its interface with the electric power system. The controlled flexible connection between the turbine and the generator makes it possible to coordinate the control of the load angle of the synchronous generator. In this paper, we consider a developed controller that provides integrated control of a wind turbine with a magnetic variator with a variable pitch of the blade angle and a variable speed of rotation of the wind turbine. A promising direction for the construction of wind power systems is currently the use of electromagnetic variators as part of wind power plants. This work is devoted to the study of electric power systems that include wind turbines with electromagnetic variators. The variator is built between the wind turbine and the generator, instead of a mechanical gearbox. The high-speed change in the torque of the electromagnetic variator allows you to keep the speed of the generator. Due to the inherent non-linearity of the wind turbine and CVT, a set of operational and emergency modes was defined and then the controller was designed for each operating point. In addition, the aerodynamic torque and effective wind speed are estimated online and a planned variable schedule for the controller implementation is obtained. Was tested by simulating with MATLAB/Simulink

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Improving dynamic stability of a wind turbine using a magnetic continuously variable transmission

Cited by 7 publications

References 4 publications

Análise Da Segurança Das Instalações Elétricas De Uma Edificação Localizada No Município De Teófilo Otoni-Mg

Análise Da Segurança Das Instalações Elétricas De Uma Edificação Localizada No Município De Teófilo Otoni-Mg

Increasing the regulating ability of a wind turbine in a local power system using magnetic continuous variable transmission

Control of a Wind Power Plant with a Synchronous Permanent Magnet Generator and a Magnetic Variator

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