A systematic approach to grid connected PV system

Afroze, Shazia; Udaykumar, R. Y.; Naik, Anant

doi:10.1109/poweri.2012.6479486

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…When the difference between the previous power and the current power is not 0, the purpose of this algorithm is to find an optimal position on the left or the right side of the last position. Maximum power is reached when ∆P is equal to 0 [9,10]. The P&O solution shall be applied to the buck-boost by changing the duty period of the PWM.…”

Section: Maximum Power Point Tracking (Mppt)mentioning

confidence: 99%

“…With the development of the power electronics network, the role of the PV source in all domestic and few commercial sectors has been extended. Renewable energy, such as the PV network, is linked to the grid in a number of ways [6][7][8][9][10]. When surplus power returns to the grid and is purchased from the grid when there is a power deficit through a net metering system, excess power is pumped into the electricity grid when PV generates more than the required demand.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Photovoltaic Grid System under Non-Uniform Irradiance Conditions

2020

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Photovoltaic (PV) systems have recently been recognized as a leading way in the production of renewable electricity. Due to the unpredictable changes in environmental patterns, the amount of solar irradiation and cell operating temperature affect the power generated by the PV system. This paper, therefore, discusses the grid-integrated PV system to extract maximum power from the PV array to supply load requirements and the supply surplus power to the AC grid. The primary design is to have maximum power point tracking (MPPT) of the non-uniformly irradiated PV array, conversion efficiency maximization, and grid synchronization. This paper investigates various MPPT control algorithms using incremental conductance method, which effectively increased the performance and reduced error, hence helped to extract solar array’s power more efficiently. Additionally, other issues of PV grid-connected system such as network stability, power quality, and grid synchronization functions were implemented. The control of the voltage source converter is designed in such a way that PV power generated is synchronous to the grid. This paper also includes a comparative analysis of two MPPT techniques such as incremental conductance (INC) and perturb-and-observe (P&O). Extensive simulation of various controllers has been conducted to achieve enhanced efficient power extraction, grid synchronization and minimal performance loss due to dynamic tracking errors, particularly under fast-changing irradiation in Matlab/Simulink. The overall results favour INC algorithm and meet the required standards.

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Section: Maximum Power Point Tracking (Mppt)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Photovoltaic Grid System under Non-Uniform Irradiance Conditions

2020

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“…The Fuzzy Logic Controller is an effective method to handle the optimization problem such as for minimizing the electricity cost in the grid connected PV-battery system. A Systematic Approach to Grid Connected PV system is presented in [21]. This paper proposed a mathematical model of PV array and a three-level control scheme of a single-phase grid-connected system including maximum power point tracker, voltage source inverter and incorporates the effects of solar irradiation and temperature changes.…”

Section: Stability and Power Quality Improvement In Grid Connectementioning

confidence: 99%

Stability and Power Quality Improvement in Grid Connected System - A Review

Chittora¹

2020

IJRASET

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The modern power system is a complex network which contains of numerous generators, transmission lines, loads and transformers etc. There has been exponential increase in the power demand over the last few decades, transmission lines are loaded more than was planned. With the increased loading of long transmission lines, the problem of transient stability, after a major fault becomes a transmission limiting factor. This leads to FACTs devices being installed in the system. The scarcity of power can be met by using renewable sources like Solar Energy, Wind energy etc. The Solar Energy systems also called PV system can be used in isolated or grid connected mode. PV system has numerous benefits and its use has been increasing in recent years. Beside electricity shortage, a more vulnerable issue in modern power system is related to quality of power delivered. A good quality of power ensures smooth operations of electrical utilities. Harmonic distortion in the grid is produced by non-linear loads connected to grid. This reduces the power quality in the system.

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“…Figure 10 shows irradiance as a variable parameter. The fluctuation of irradiance energy was due to the weather and global sun position, which implies that the PV source is not a constant type of energy, thus posing reliability issues in power generation [13].…”

Section: Load Demand Follow the Pv Generationmentioning

confidence: 99%

Development of Load Control Algorithm for PV Microgrid

Fatheli¹,

Zolkifri²,

Gan³

et al. 2017

IJECE

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The variability of solar irradiance caused by weather conditions could result in the mismatch between the solar PV generation and demand, particularly in the microgrid context. This may lead to detrimental effects of over/under voltage or over/under frequency. In this regard, this paper presents the laboratory setup of a grid-connected PV inverter operating in islanding condition. To achieve this, a load control algorithm is proposed to provide autonomous real time demand control that follows the PV generation to maintain generation-demand equilibrium requirement. Laboratory results show that the proposed load control algorithm is capable to address the voltage and the frequency violation in islanding condition, regardless of the variation of irradiance and power generated by the PV sources.

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A systematic approach to grid connected PV system

Cited by 6 publications

References 9 publications

Investigation of Photovoltaic Grid System under Non-Uniform Irradiance Conditions

Investigation of Photovoltaic Grid System under Non-Uniform Irradiance Conditions

Stability and Power Quality Improvement in Grid Connected System - A Review

Development of Load Control Algorithm for PV Microgrid

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