Photovoltaic solar system connected to the electric power grid operating as active power generator and reactive power compensator

Albuquerque, Fabio Lima de; Moraes, A.J.; Guimarães, Geraldo Caixeta; Sanhueza, Sérgio Manuel Rivera; Vaz, Alexandre Rodrigues

doi:10.1016/j.solener.2010.04.011

Cited by 113 publications

(36 citation statements)

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“…Thus, a solar PV power generation system including a shunt active filtering function connected to the grid would be very useful for the improvement of power quality for both costumers and utility operators [14][15][16][17][18][19][20][21][22][23]. The shunt active filtering functionality can be achieved only by changing the control algorithm of the inverter.…”

Section: Introductionmentioning

confidence: 99%

Design and operation of a multifunction photovoltaic power system with shunt active filtering using a single-stage three-phase multilevel inverter

Sezen¹,

Aktaş²,

Uçar³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:In this paper, the control of a multifunction grid-connected photovoltaic (PV) system with a three-phase threelevel (3L) neutral point clamped (NPC) inverter is proposed, which can perform shunt active filtering. Normally, the shunt active filtering is achieved by detecting the harmonic and reactive currents of the nonlinear load and then injecting the compensating current into the grid. Therefore, the proposed system can inject PV power to a grid with power factor correction and current harmonic filtering features simultaneously. In addition, a single-stage compact and efficient transformerless power conversion topology is used in this paper for the grid-connected solar PV system with maximum power point tracking capability. In order to control the multilevel inverter-based combined system, a synchronous reference frame control technique and hysteresis current control pulse width modulation method have been applied.The system configuration and control strategy are verified and validated by simulations based on MATLAB/Simulink and implemented in real-time using the dSPACE DS1103 controller board. The simulation with experimental results indicates that the injected currents are sinusoidal and current total harmonic distortion is about 3.9%, lower than the IEEE 519 harmonic limit.

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Section: Introductionmentioning

confidence: 99%

Design and operation of a multifunction photovoltaic power system with shunt active filtering using a single-stage three-phase multilevel inverter

Sezen¹,

Aktaş²,

Uçar³

et al. 2017

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

show abstract

“…• 22 trabalhos têm o objetivo específico de modelar inversores com a funcionalidade de compensação de reativos incorporada e demonstrar sua viabilidade técnica (HASSAINE et al, 2014;CHANG et al, 2014;RESHMA;RAJESH, 2013;MARTI et al, 2013;BELAIDI et al, 2013;NOROOZIAN;GHAREHPETIAN, 2013;LI et al, 2012;HAMZAOUI;BOUCHAFAA;HADJAMMAR, 2011;TURITSYN et al, 2011;LIU et al, 2011;SEO et al, 2009;ALBUQUERQUE et al, 2010;CAGNANO et al, 2011;TSENGENES;ADAMIDIS, 2011;TURITSYN et al, 2010;GHARAKHANY;MOHAMADIAN;VARJANI, 2009;CHUNLING et al, 2009;HAMROUNI;JRAIDI;CHÉRIF, 2008;HASSAINE et al, 2009;LIBO;ZHENGMING;JIANZHENG, 2007;YU;PAN;XIANG, 2005;BARBOSA et al, 1998;KIM;YOO;SONG, 1996);…”

Section: Síntese Da Revisão Bibliográficaunclassified

Análise de um mecanismo de compensação de reativos incorporado aos inversores de um sistema fotovoltaico conectado à rede elétrica

Benedito¹

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“…On the other hand, depending on time and weather variability, the simultaneous occurrence of excess intermittent renewable generation (i.e., wind and solar PV) and low demand would lead to loss of voltage regulation along with unexpected voltage-rise on the feeders due to reverse power flows [102]. As a fast response device, the inverter-based PV unit is allowed to inject or absorb reactive power to stabilize load voltages as per the new German grid code [103] while supplying energy as a primary task [101,104]. Other technologies such as synchronous machines used in biomass power plants, and Doubly-Fed Induction Generators (DFIGs) or full converter synchronous machines employed in wind farms are also capable of controlling reactive power while supplying active power [105].…”

Section: Grid Codes For Dg Integrationmentioning

confidence: 99%

“…As described in Section 3.3.4, the inverter-based PV technology [101,104], which is capable of delivering active power and exporting or consuming reactive power, is adopted in this study. The relationship between the active and reactive power of a PV unit at bus k ( k PV P and k PV Q ) can be expressed as follows [24]:…”

Section: Solar Pv Modellingmentioning

confidence: 99%

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Smart integration of distributed renewable generation and battery energy storage

Hung¹

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Renewable energy (i.e., biomass, wind and solar) and Battery Energy Storage (BES) are emerging as sustainable solutions for electricity generation. In the last decade, the smart grid has been introduced to accommodate high penetration of such renewable resources and make the power grid more efficient, reliable and resilient. The smart grid is formulated as a combination of power systems, telecommunication communication and information technology. As an integral part of the smart grid, a smart integration approach is presented in this thesis. The main idea behind the smart integration is locating, sizing and operating renewable-based Distributed Generation (DG) resources and associated BES units in distribution networks strategically by considering various technical, economical and environmental issues. Hence, the aim of the thesis is to develop methodologies for strategic planning and operations of high renewable DG penetration along with an efficient usage of BES units.The first contribution of the thesis is to present three alternative analytical expressions to identify the location, size and power factor of a single DG unit with a goal of minimising power losses. These expressions are easily adapted to accommodate different types of renewable DG units for minimizing energy losses by considering the time-varying demand and different operating conditions of DG units. Both dispatchable and nondispatchable renewable DG units are investigated in the study. Secondly, a methodology is also introduced in the thesis for the integration of multiple dispatchable biomass and nondispatchable wind units. The concept behind this methodology is that each nondispatchable wind unit is converted into a dispatchable source by adding a biomass unit with sufficient capacity to retain the energy loss at a minimum level. Thirdly, the thesis studies the determination of nondispatchable photovoltaic (PV) penetration into distribution systems while considering time-varying voltage-dependent load models and probabilistic generation. The system loads are classified as an industrial, commercial or residential type or a mix of them with different normalised daily patterns. The Beta probability density function model is used to describe the probabilistic nature of solar irradiance. An analytical expression is proposed to size a PV unit. This expression is based on the derivation of a multiobjective index (IMO) that is formulated as a combination of iii three indices, namely active power loss, reactive power loss and voltage deviation. The IMO is minimised in determining the optimal size and power factor of a PV unit. Fourthly, the thesis discusses the integration of PV and BES units considering optimal power dispatch. In this work, each nondispatchable PV unit is converted into a dispatchable source by adding a BES unit with sufficient capacity. An analytical expression is proposed to determine the optimal size and power factor of PV and BES units for reducing energy losses and enhancing voltage stability. A self-correction algorith...

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Photovoltaic solar system connected to the electric power grid operating as active power generator and reactive power compensator

Cited by 113 publications

References 15 publications

Design and operation of a multifunction photovoltaic power system with shunt active filtering using a single-stage three-phase multilevel inverter

Design and operation of a multifunction photovoltaic power system with shunt active filtering using a single-stage three-phase multilevel inverter

Análise de um mecanismo de compensação de reativos incorporado aos inversores de um sistema fotovoltaico conectado à rede elétrica

Smart integration of distributed renewable generation and battery energy storage

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