Operation and control of grid connected wind &amp;#x2014; PV hybrid system

Nair, Neethi R; Ebenezer, Mabel

doi:10.1109/icage.2014.7050165

Cited by 13 publications

(7 citation statements)

References 9 publications

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“…Hence, the input current ripple from input sources, such as FCs and PV modules, can be reduced using this converter. Although the MI Ćuk converter is adopted in various applications, such as the wind and PV hybrid power systems [23]− [24], its drawbacks of low power efficiency and high current stress of the switches remain.…”

Section: Introductionmentioning

confidence: 99%

Multiple-Input Soft-Switching DC–DC Converter to Connect Renewable Energy Sources in a DC Microgrid

Sun

Bae

2022

IEEE Access

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This paper presents a new multiple-input soft-switching DC−DC Ćuk converter for clean and renewable energy sources. The proposed converter can buck and boost the different voltages of renewable energy sources to produce a constant DC output voltage in a DC microgrid. In the proposed converter, edge-resonant soft-switching modules are used to perform better than the conventional multiple-input Ćuk converter. All switches in the edge-resonant soft-switching modules can realize zero-current switching turnon and zero-voltage switching turn-off. By using these modules, the proposed converter can achieve lower current stress of the switches, wider soft-switching range, and higher power efficiency than the conventional multiple-input Ćuk converter. These advantages are achieved in the edge-resonant modules, which optimize soft-switching states and costs. In addition, the soft-switching states can be easily achieved because the edge-resonant soft-switching modules have a wide soft-switching range. Furthermore, the proposed converter can independently transfer the generated power from renewable energy sources to the DC microgrid. In this article, the operation principles and performance of the proposed converter are discussed in detail. The theoretical analysis is validated by experimental results obtained from a laboratoryscale prototype and full-scale real-time hardware-in-the-loop experiments.INDEX TERMS DC−DC power converters, Edge-resonant, Multiple-input Ćuk converter, Zero-current switching, Zero-voltage switching.

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Section: Introductionmentioning

confidence: 99%

Multiple-Input Soft-Switching DC–DC Converter to Connect Renewable Energy Sources in a DC Microgrid

Sun

Bae

2022

IEEE Access

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“…Como resultado, las fuentes de energías renovables (FER) han ido ganando más importancia y participación dentro de la generación de electricidad en la mayoría de países [1]- [2]. En este sentido, muchas investigaciones han sido enfocadas en mejorar la eficiencia de estas tecnologías, pero sobretodo en definir escenarios apropiados para su integración con las redes eléctricas convencionales [3].…”

Section: Introductionunclassified

Auto – Conversores Sincrónicos: Emulación de Generadores Sincrónicos con Conversores para la Inyección de Inercia Virtual en Sistemas de Potencia de 60 Hz Considerando Auto-sincronización

Riofrio¹,

Farkas²

2022

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La generación de electricidad a partir de fuentes renovables y la integración de las redes eléctricas inteligentes son tendencias en la actualidad de los sistemas eléctricos de potencia. Sin embargo, estos están intensificando la falta de inercia durante la operación de los sistemas modernos. Esto ha conllevado a la aparición de nuevas técnicas que buscan emular la inercia de los sistemas digitalmente, y así resolver esta limitación operativa. Una de estas técnicas es la denominada como conversores sincrónicos (CS) que busca replicar la operación de un generador sincrónico (GS) utilizando conversores CC/CA. De hecho, un SV permite que los sistemas eléctricos de potencia controlen las plantas de energía renovable conectadas a la red y evita la pérdida de estabilidad de voltaje y frecuencia durante su operación. Esta investigación presenta una variación del modelo original del SV, la misma que es capaz de auto sincronizarse con la red antes de su conexión, y además rastrear la frecuencia de la red después de esto. De igual manera, el circuito de potencia del SV ha sido modificado para incluir una planta fotovoltaica (FV) y un controlador de seguimiento del punto de máxima potencia (MPPT) como fuentes de voltaje en CC. Esto junto con el cálculo de los parámetros del SV para una frecuencia de 60 Hz brinda novedad a esta investigación. Finalmente, las simulaciones en MATLAB confirman una operación confiable del SV propuesto ante variaciones de potencia activa (P) y reactiva (Q) en una red de prueba.

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“…A grid inverter was developed for operating in both modes. In [3], [4], [5], solar and wind power systems were connected via the DC bus, then injected to the AC grid using inverter. In [6], [7], the wind power, solar power and the grid were connected using AC bus.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the complicated and high costs for implementing the hybrid power systems, most works described previously implemented and tested the algorithms using the simulation systems [3] - [6], [8] - [12]. In [2], the hybrid wind-solar power system was implemented on the laboratory scale.…”

Section: Introductionmentioning

confidence: 99%

A Hardware Testbed of Grid-Connected Wind-Solar Power System.

Soetedjo¹,

Lomi²,

Puspita³

2019

ijsgset

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This paper presents the development of hardware testbed for implementing grid connected wind-solar power system. A solar simulator using halogen lamp is employed to simulate the sun irradiation. The wind power simulator is developed by coupling the DC motor and the DC generator. A grid tie inverter is employed to connect the power from the solar and wind power system with the grid system. The experimental results show that the developed testbed could be used for testing the hybrid power system in the real hardware.

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Operation and control of grid connected wind — PV hybrid system

Cited by 13 publications

References 9 publications

Multiple-Input Soft-Switching DC–DC Converter to Connect Renewable Energy Sources in a DC Microgrid

Multiple-Input Soft-Switching DC–DC Converter to Connect Renewable Energy Sources in a DC Microgrid

Auto – Conversores Sincrónicos: Emulación de Generadores Sincrónicos con Conversores para la Inyección de Inercia Virtual en Sistemas de Potencia de 60 Hz Considerando Auto-sincronización

A Hardware Testbed of Grid-Connected Wind-Solar Power System.

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