Two-stage grid-connected inverter for PV systems

Altın, Necmi; Özdemir, Şaban; Kömürcügil, Hasan; Sefa, İbrahim; Biricik, Samet

doi:10.1109/cpe.2018.8372540

Cited by 23 publications

(5 citation statements)

References 22 publications

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“…Also, the inductance decreases with the increasing current about change in solar irradiance. In [80]- [82], the inductor core gradually saturates with increasing current to track the MPP and reduces the overall inductor value by up to 75% with an increased operating range of MPPT at lower solar irradiance levels utilizing the variable inductor method.…”

Section: ) Variable Inductance (Vl) Methodsmentioning

confidence: 99%

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

et al. 2020

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A significant growth in solar photovoltaic (PV) installation has observed during the last decade in standalone and grid-connected power generation systems. The solar PV system has a non-linear output characteristic because of weather intermittency, which tends to have a substantial effect on overall PV system output. Hence, to optimize the output of a PV system, different maximum power point tracking (MPPT) techniques have been used. But, the confusion lies while selecting an appropriate MPPT, as every method has its own merits and demerits. Therefore, a proper review of these techniques is essential. A "Google Scholar" survey of the last five years (2015-2020) was conducted. It has found that overall seventy-one review articles are published on different MPPT techniques; out of those seventy-one, only four are on uniform solar irradiance, seven on non-uniform and none on hybrid optimization MPPT techniques. Most of them have discussed the limited number of MPPT techniques, and none of them has discussed the online and offline under uniform and hybrid MPPT techniques under non-uniform solar irradiance conditions all together in one. Unfortunately, very few attempts have made in this regard. Therefore, a comprehensive review paper on this topic is need of time, in which almost all the well-known MPPT techniques should be encapsulated in one paper. This article focuses on classifications of online, offline, and hybrid optimization MPPT algorithms, under the uniform and non-uniform irradiance conditions. It summarizes various MPPT methods along with their mathematical expression, operating principle, and block diagram/flow charts. This research will provide a valuable pathway to researchers, energy engineers, and strategists for future research and implementation in the field of maximum power point tracking optimization.

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Section: ) Variable Inductance (Vl) Methodsmentioning

confidence: 99%

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

et al. 2020

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“…The state equation of the VSI system can be represented (8) to (10). (10) where (𝑉𝑑, 𝑉𝑞) is the input control vector.…”

Section: Dc-ac Inverter Modelingmentioning

confidence: 99%

“…The time derivative of the tracking error Ɛ 3 ̇ can be expressed as using (8): The Lyapunov candidate function (LCF) and its derivatives can be written as (25).…”

Section: Control Of Active and Reactive Power Of Grid Sidementioning

confidence: 99%

Power quality optimization using a novel backstepping control of a three-phase grid-connected photovoltaic systems

Naddami¹,

Ababssi²

2023

IJECE

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<span lang="EN-US">A novel nonlinear backstepping controller based on direct current (DC) link voltage control is proposed in three-phase grid-connected solar photovoltaic (PV) systems to control the active and reactive power flow between the PV system and the grid with improved power quality in terms of pure sinusoidal current injection with lower total harmonic distortion (THD), as well as to ensure unity power factor, or to compensate for reactive power required by the load, i.e., the electrical grid. The output power of the PV array is supplied to the grid through a boost converter with maximum power point tracking (MPPT) control and an inverter. Simulation results of the proposed controller show good robustness under nominal conditions, parameter variations, and load disturbances, which presents the main advantage of this controller as compared to an existing controller. The performance of this work was evaluated using a MATLAB/Simulink environment.</span>

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“…The single-stage application is an inverter that simultaneously performs the functions of MPPT, boosting, and voltage conversion from DC to AC [43]. In the two-stage converter, these functions are split between DC-DC and DC-AC inverters [44]. Depending on the safety conditions or voltage gain requirements, applications may be equipped with transformers or be transformerless.…”

Section: Ac Grid On Pv Applicationsmentioning

confidence: 99%

Power Converter Solutions for Industrial PV Applications—A Review

et al. 2022

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As the use of photovoltaics becomes more widespread, new technologies for more efficient energy generation, transmission, and distribution based on power electronics converters are being developed. The most common applications are grid-on, energy storage, hybrid, and high voltage gain applications. These applications impose several additional requirements in the design of power converters associated with the solar battery’s maximum power tracking and operation in a wide range of input currents and voltages. The practical realization of such solutions can be implemented on the basis of various topologies, which requires a preliminary application of criteria for assessing their effectiveness. The paper conducts a comparison of different topologies on power converters based on two parameters that describe their cost and power loss for various PV applications. For a straightforward study, these parameters are represented using the gain factor, which allows for an accurate comparison of the efficiency of various types of converters.

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Two-stage grid-connected inverter for PV systems

Cited by 23 publications

References 22 publications

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

Power quality optimization using a novel backstepping control of a three-phase grid-connected photovoltaic systems

Power Converter Solutions for Industrial PV Applications—A Review

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