Harmonics and reactive power compensation method by grid-connected Photovoltaic generation system

Seo, Hyo-Ryong; Kim, Gyeong-Hun; Jang, Seong-Jae; Kim, Sang-Yong; Park, Sangsoo; Park, Minwon; Yu, In-Keun

doi:10.1109/icems.2009.5382712

Cited by 20 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the other hand, at low frequencies the size and cost of the magnetic components and the link capacitor would be high to maintain the DC-link voltage ripple in acceptable operating range. Furthermore, the parasitic capacitance of the PV panels to ground could cause leakage currents due to lack of isolation [8,9]. Power electronic devices especially photovoltaic inverter, together with operation of nonlinear appliances, injects harmonics into the grid, which may potentially create voltage distortion problems.…”

Section: System Modelingmentioning

confidence: 99%

Harmonic current detection based on the generalized instantaneous reactive power theory

Teng

Xiong

et al. 2015

2015 IEEE International Conference on Progress in Informatics and Computing (PIC)

View full text Add to dashboard Cite

This paper presents harmonic current detection based on a generalized theory of instantaneous reactive power for three-phase power systems. This new theory gives a generalized definition of instantaneous reactive power, which is valid for sinusoidal or no sinusoidal, balanced or unbalanced, three-phase power systems with or without zero-sequence currents and/or voltages. The properties and physical meanings of the newly defined instantaneous reactive power are discussed in detail. A harmonic and reactive power compensator based on the new theory for a three-phase harmonic distorted power system with zero-sequence components in the load current and/or source voltage is then used as an example to show harmonic and reactive power measurement and compensation using the new theory. Simulation and experimental results are presented.

show abstract

Section: System Modelingmentioning

confidence: 99%

Harmonic current detection based on the generalized instantaneous reactive power theory

Teng

Xiong

et al. 2015

2015 IEEE International Conference on Progress in Informatics and Computing (PIC)

View full text Add to dashboard Cite

show abstract

“…Além disto, a propagação de harmônicos poder causar interferências em instrumentos mais sensíveis e eventuais ressonâncias entre equipamentos e sistemas distintos. Neste contexto, propõe-se utilizar os próprios geradores distribuídos como condicionadores de energia elétrica, tal como proposto em [15][16][17]. …”

Section: Multifuncionalidades Propostas Para O Sistema De Geraçãunclassified

Estratégia De Controle Multifuncional Para Sistemas Fotovoltaicos De Geração De Energia Elétrica

Brandão¹,

Marafão²,

Gonçalves³

et al. 2013

Revista Eletrônica de Potência

View full text Add to dashboard Cite

Resumo -Este artigo propõe uma estratégia multifuncional para o controle dos inversores nos sistemas fotovoltaicos de geração distribuída. Tal estratégia permite que o sistema injete na rede a energia disponível do lado primário, e funcione simultaneamente como regulador de tensão no ponto de acoplamento comum ou filtro ativo de potência, reduzindo os distúrbios da corrente e melhorando a qualidade da energia no ponto de conexão. A principal diferença entre a estratégia proposta e outras encontradas na literatura é que neste trabalho, as referências de controle são geradas por meio da Teoria de Potência Conservativa. Isto possibilita o uso de referên-cias desacopladas (ortogonais) de corrente e de potência para o controle do inversor, o que torna o sistema de controle bastante flexível e seletivo no que diz respeito à escolha de diferentes objetivos de operação. Além disto, o controlador multifuncional também permite a operação do sistema em modo ilhado ou conectado à rede. Resultados de simulação e experimentais são apresentados para validar a metodologia proposta. MULTIFUCTIONAL CONTROL STRATEGY FOR PHOTOVOLTAIC DISTRIBUTED GENERATION SYSTEMSAbstract -This paper deals with a multi task control strategy for photovoltaic distributed generation inverters. Such strategy simultaneously allows the systems to inject the available energy on the primary side (usually DC), as well as to work as a voltage drop compensator or an active power filter, mitigating load current disturbances and improving power quality at the point of common coupling. The main difference among the proposed methodology from others in literature is that most of the proposed control loops are based on the Conservative Power Theory. It provides decoupled power and current references for the inverter control, offering a very flexible, selective and powerful strategy for the control system. Moreover, the proposed multifunctional controller also allows the system's operation in island or grid-connected mode. Simulation and experimental results will be de- picted in order to validate some of the possible functionalities of the proposed scheme control.

show abstract

“…One practical approach is that synchronous machines of old power plants are still connected to the grid and providing the reactive power and inertia [10]. It has also been a practical topic to study how the stability of the power grid can be kept in the lower rotational inertia case (because of high penetration of renewable sources) using some faster control reserves [11,12]. One possible option is to use battery storage providing primary control reserve, see e.g.…”

Section: Introductionmentioning

confidence: 99%

Different Terms Fluctuations of Solar Power System

Liu¹,

Hu²,

Miao³

et al. 2016

Proceedings of the 2016 4th International Conference on Machinery, Materials and Information Technology Applications

View full text Add to dashboard Cite

The generation of solar power are known to be seriously influenced by many factors, such as temperature, humidity, et al. These factors cause the fluctuations of solar power system. This paper considers those fluctuations of different terms by using actual historical data and the different distribution method. From the analysis and simulations, we find the fluctuation data for different terms can fit different kinds of distribution functions, such Gaussian distribution, T Location-scale, Histogram distribution, and Logistic distribution. Finally, the simulation shows the method is effective and efficient.

show abstract

Harmonics and reactive power compensation method by grid-connected Photovoltaic generation system

Cited by 20 publications

References 10 publications

Harmonic current detection based on the generalized instantaneous reactive power theory

Harmonic current detection based on the generalized instantaneous reactive power theory

Estratégia De Controle Multifuncional Para Sistemas Fotovoltaicos De Geração De Energia Elétrica

Different Terms Fluctuations of Solar Power System

Contact Info

Product

Resources

About