A method for MPPT control while searching for parameters corresponding to weather conditions for PV generation systems

Mutoh, N.; Ohno, Masahiro; Inoue, Takashi

doi:10.1109/iecon.2004.1432306

Cited by 48 publications

(63 citation statements)

References 4 publications

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“…The tracker operates periodically by comparing the actual value of the power with the previous value to determine the change (incrementing or decrementing) on the solar array voltage or current (depending on the control strategy). If a given perturbation leads to an increase (decrease) in the output power of the PV, then the subsequent perturbation is generated in the same (opposite) direction [7,11,13,20]. The algorithm is summarized in Fig.…”

Section: B the Perturb And Observe (Pando) Methodsmentioning

confidence: 99%

The influence of current sensor and MPP tracking on energy yield for PV power systems

Al-Diab

Bouabana

2010

7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion (MedPower 201

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Maximum power point tracking (MPPT) techniques are employed in photovoltaic (PV) systems to maximize the PV array output power which depends on solar irradiance and temperature. Most of these techniques depend on the measurement of the current sensor which needs to be simulated on the design phase. Simulation tools like Matlab/SIMULINK, measurement devices and only deal with ideal characteristics which make it difficult to understand the exact response of such system on the operation mode. Current sensor model is implemented to enhance the design and the implementation of the proposed modified P&O algorithm. The algorithm is designed in order to overcome the drawbacks in traditional P&O MPPT algorithm. Varying the step size value and the sampling time reduces the oscillations around the MPP and leads to a faster response. When a step change in the solar irradiance occurs, the step size and sampling time are automatically tuned according to the operating point. If the operating point is far from the MPP, it increases the step size and decreases the sampling time which enables a fast tracking ability with smaller oscillation steps around the MPP.I.

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Section: B the Perturb And Observe (Pando) Methodsmentioning

confidence: 99%

The influence of current sensor and MPP tracking on energy yield for PV power systems

Al-Diab

Bouabana

2010

7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion (MedPower 201

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“…MPPT for photovoltaic is discussed in many studies (Fangrui Liu et al 2008, Femia et al 2008, Fortunato et al 2008, Kim and Kim 2006, Gules et al 2008, Mutoh and Ohno 2006, Park et al 2006, Patel and Agarwal 2008, Scarpa et al 2009, Sera et al 2008, Xiao et al 2006). We proposed a novel method for photovoltaic MPPT based on a neuro-fuzzy algorithm and this algorithm is introduced in our previous work (Kamel et al 2010).…”

Section: Neuro-fuzzy Mppt Controllermentioning

confidence: 99%

Micro-grid transient dynamic response enhancement during and subsequent to huge and multiple disturbances by connecting it with nearby micro-grids

Kamel

Chaouachi

Nagasaka

2011

International Journal of Sustainable Energy

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The necessity for solving global warming problems by reducing CO 2 emissions in the electricity generation field has led to an increase in interest in micro-grids (MGs), especially one which included renewable sources. This article deals with the connection of two nearby MGs during emergency situations in order to enhance their transient dynamic performance during and subsequent to two huge disturbances under different load conditions of the two MGs. The first disturbance is the two MGs islanding from the main grid followed by failure of a dominant micro source in the first MG. Also, this study introduces a novel neuro-fuzzy maximum power point tracking (MPPT) controller applied to all photovoltaic panels installed in the two MGs. All components and micro sources installed inside the two MGs are dynamically modelled in detail. All micro source models and controllers are built in the Matlab Simulink environment.

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“…The main disadvantages of solar power are high installation cost, low energy conversion efficiency, and change in the amount of power generation due to change in weather condition (i.e. irradiation) [3], [4]. With the development of technology, it is expected that the cost of installation will decrease in future.…”

Section: Introductionmentioning

confidence: 99%

Improvement in the power generation of a PV array under partial shading conditions

Sahu

Nayak

2014

2014 Eighteenth National Power Systems Conference (NPSC)

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Photovoltaic (PV) arrays are susceptible to large amounts of power losses due to partial shading on the array. The power-voltage characteristics of partially shaded array contain multiple local maxima and global maximum power point (GMPP) is one of them. The losses in the PV array depend both, the shadow shape and physical location of the shaded modules. This paper presents an innovative approach to arrange the modules in the array in such a way that there is an increase of power generation of array under partial shading condition. In this approach, without changing the electrical connection of the modules, the physical locations of the modules in Total Crossed Tired (TCT) structure are rearranged. The modules are rearranged in such a way that the shading effect is distributed over the array, and it reduces the shading modules in the same row. The power generation of array with TCT and proposed configuration is compared in this paper. It is demonstrated that the power generation of array with proposed configuration is enhanced under different shading pattern.

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A method for MPPT control while searching for parameters corresponding to weather conditions for PV generation systems

Cited by 48 publications

References 4 publications

The influence of current sensor and MPP tracking on energy yield for PV power systems

The influence of current sensor and MPP tracking on energy yield for PV power systems

Micro-grid transient dynamic response enhancement during and subsequent to huge and multiple disturbances by connecting it with nearby micro-grids

Improvement in the power generation of a PV array under partial shading conditions

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