Optimization of partially shaded PV array using fuzzy MPPT

Chin, Chia Seet; Tan, Min; Neelakantan, P.; Chua, Bih Lii; Teo, Kenneth Tze Kin

doi:10.1109/chuser.2011.6163777

Cited by 32 publications

(9 citation statements)

References 15 publications

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“…We will describe the most frequently used algorithm for MPPT named Perturb and Observe (P&O) as presented in [7,8,9]. A minor improvement of the way how the algorithm is expressed will be introduced leading to a Modified Perturb and Observe (MP&O) algorithm.…”

Section: Introductionmentioning

confidence: 98%

MPPT controller design for a standalone PV system

Stošović

Dimitrijević

Litovski³

2013

2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)

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Circuit for maximum power point tracking (MPPT) is one among several equally important subsystems of a standalone photovoltaic (PV) system. In this paper we will implement one algorithm for maximum power point tracking, based on the maximum simplicity criteria, into the whole PV system. SPICE circuit simulation of the complete standalone PV system will be performed in order to verify the proposed algorithm. Different working conditions will be examined.

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Section: Introductionmentioning

confidence: 98%

MPPT controller design for a standalone PV system

Stošović

Dimitrijević

Litovski³

2013

2013 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS)

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“…4. [8,9]. One may see from the figure that as a result a fixed increment (positive or negative) of the PV panel voltage is produced after each sampling period (of the voltage and the power of the PV panel).…”

Section: Introductionmentioning

confidence: 99%

“…First we will describe the basic properties of the PV panel from the sensitivity to illumination and temperature point of view in order to establish the feeling about the reason why the maximum power point is migrating during the operation of the PV system. Then, we will describe the most frequently used algorithm for MPPT named Perturb and Observe (P&O), as described in [7,8,9]. A minor improvement of the way how the algorithm is expressed will be introduced leading to a Modified Perturb and Observe (MP&O) algorithm.…”

Section: Introductionmentioning

confidence: 99%

SPICE Modeling and Simulation of a MPPT Algorithm

Stošović¹,

Dimitrijević²,

Lukac³

et al. 2014

ELS

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Abstract-One among several equally important subsystems of a standalone photovoltaic (PV) system is the circuit for maximum power point tracking (MPPT). There are several algorithms that may be used for it. In this paper we choose such an algorithm based on the maximum simplicity criteria. Then we make some small modifications to it in order to make it more robust. We synthesize a circuit built out of elements from the list of elements recognized by SPICE. The inputs are the voltage and the current at the PV panel to DC-DC converter interface. Its task is to generate a pulse width modulated pulse train whose duty ratio is defined to keep the input impedance of the DC-DC converter at the optimal value.

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“…In fact, the PV array rarely receives uniform irradiation most of the time, as parts of the PV arrays may be shaded by heavy cloud, trees or nearby buildings, which cause partial shading condition (PSC) [6,11], [13][14], [19], [23][24][25][26][27].…”

Section: Pando Mppt For Partial Shading Condition 31 Overview On Pando mentioning

confidence: 99%

“…However, sweeping leads to complexity and incurs more power loss. [10,11] and Artificial Neural Network (ANN) [12]. The advantages of using FLC method are it does not require accurate mathematical model and can operate well under varying atmospheric conditions.…”

Section: Introductionmentioning

confidence: 99%

A Review on Perturb and Observe Maximum Power Point Tracking in Photovoltaic System

2015

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Solar energy is becoming popular and has drawn lots of attention from researchers nowadays. However, the output power of the photovoltaic (PV) arrays varies with solar irradiation and temperature, which affect the efficiency of PV arrays. Therefore, Maximum Power Point Tracking (MPPT) IntroductionFulfilling the energy demand from the people all over the world would be not enough if the energy sources are only limited to utilization of non-renewable sources such as fuel, gas and coal. Besides, most non-renewable energies cause pollution and less non-environmentally friendly. Hence, renewable energies are introduced in the past two decades to fulfill the energy demand. One of the popular renewable energies is solar energy which is extracted by converting sunlight into electrical power using the photovoltaic system. However, the conversion efficiency is relatively low with the range of only from 12% up to 20%, and it is highly dependent on the solar irradiation and panel temperature [1]. Thus, in this paper, Maximum Power Point Tracking (MPPT) control technique is explained which can increase the efficiency of the overall Photovoltaic (PV) system by extracting the maximum available power from the PV arrays [1][2][3].There are many MPPT techniques that have been introduced and elaborated extensively by researchers. Reference [4] stated that at least 19 distinct methods have been promoted, developed and implemented to improve solar photovoltaic. Each method differs in theirs complexity, number of sensors used, cost and effectiveness.The simplest technique that can be used is fixed duty cycle method [5] since it does not need any feedback to be implemented; but when the operation environment changes, the efficiency will become low. Fractional open circuit voltage (OCV) and fractional short circuit current (SCC) are also said to be the easiest offline methods for MPPT [3,4], [6][7][8]. As for the OCV method, the voltage at MPP (V MPP ) is approximately equal to the open circuit voltage (V OC ) of PV array with the factor of k 1 such that V MPP ≈ k 1 V OC , where k 1 ranges between 0.71 and 0.78 [9]. Similar with SCC method, the current at MPP (I MPP ) is approximately linearly related to the short circuit current (I SC ) of PV array, such that IMPP ≈ k 2 I SC, where k 2 ranges between 0.78 and 0.9 [4]. Regardless of their simplicity, the Maximum Power Point (MPP) obtained from these methods is not true due to the imprecise MPP tracking. Plus, the constants k 1 and k 2 are not valid during partial shading condition. It have been improved by sweeping the PV array voltage or current in order to update k 1 and k 2 , respectively. However, sweeping leads to complexity and incurs more power loss.

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Optimization of partially shaded PV array using fuzzy MPPT

Cited by 32 publications

References 15 publications

MPPT controller design for a standalone PV system

MPPT controller design for a standalone PV system

SPICE Modeling and Simulation of a MPPT Algorithm

A Review on Perturb and Observe Maximum Power Point Tracking in Photovoltaic System

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