Performance improvement of a photo voltaic array using MPPT (P&amp;amp;O) technique

Sridhar, R.; Selvan, N. Thamizh; Jeevananthan, S.; Chowdary, PV Sujith

doi:10.1109/icccct.2010.5670550

Cited by 17 publications

(7 citation statements)

References 4 publications

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“…In the world of renewable energy, optimization algorithms for the MPPT problem are used to improve energy transformation. Among the most used algorithms, we find the P&O, which is used by many authors such as [13,[42][43][44]. Its simplicity and few code lines make it easy to deploy.…”

Section: Mppt Algorithms Based On Pandomentioning

confidence: 99%

Maximum Power Point Tracking of Photovoltaic Panels by Using Improved Pattern Search Methods

et al. 2017

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This paper deals with the optimization of maximum power point tracking when a photovoltaic panel is modelled as two diodes. The adopted control is implemented using a sliding mode control (SMC) and the optimization is implemented using an improved Pattern Search Method. Thus, the problem of maximum power point tracking is reduced to an optimization problem whose solution is implemented by Pattern Search Techniques, inheriting their convergence properties. Simulation examples show the effectiveness of the proposed technique in practice, being able to deal with different radiations. In addition, improved pattern search method (IPSM) is compared with other techniques such as perturb & observe and Particle Swarm optimization, after which IPSM presents lower energy losses in comparison with the other two algorithms, with the advantage of ensuring the location of the optimal power point in all cases.

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Section: Mppt Algorithms Based On Pandomentioning

confidence: 99%

Maximum Power Point Tracking of Photovoltaic Panels by Using Improved Pattern Search Methods

et al. 2017

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“…Figure 1 shows more detail on the operation of the conventional P&O algorithm. Based on the obtained information, P&O algorithm is able to predict when the operating voltage is approaching the V MPP by comparing the actual and the previous state of the power, P, and voltage, V. In short, the next perturbation to reach the MPP will be the same if there is an increment of P and vice versa [20], as shown concluded in Table 1. The process of perturbation and observation will be carried continuously until the systems reach the MPP.…”

Section: Perturb and Observe (Pando) Mppt 21 Conventional Pando Mpptmentioning

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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“…However, there is always a unique point on the V-I or V-P curve called the maximum power point (MPP). This point is not known on these characteristics, but it can be located by MPPT algorithms categorized generally as follows: Perturbation and Observation (P&O) algorithms [3]- [5], Incremental Conductance (InC) algorithm [6][7][8], Constant Current (CC) or Voltage (CV) algorithm [9]- [10] and other algorithms such as Fuzzy Logic (FL) algorithm [11]- [12], Artificial Neural Network (ANN) algorithm [13] and the Particle Swarm Optimization (PSO) algorithm [14][15]. These existing algorithms have several advantages and disadvantages concerned with simplicity, convergence speed, extra hardware and cost.…”

Section: Introductionmentioning

confidence: 99%

Maximum Power Point Tracking Using an Adaptive Perturbation and Observation Algorithm For A Grid-Connected Solar Photovoltaic System

Huynh¹,

Dunnigan²

2015

IJGDC

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Performance improvement of a photo voltaic array using MPPT (P&O) technique

Cited by 17 publications

References 4 publications

Maximum Power Point Tracking of Photovoltaic Panels by Using Improved Pattern Search Methods

Maximum Power Point Tracking of Photovoltaic Panels by Using Improved Pattern Search Methods

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

Maximum Power Point Tracking Using an Adaptive Perturbation and Observation Algorithm For A Grid-Connected Solar Photovoltaic System

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