A simple and efficient hybrid maximum power point tracking method for PV systems under partially shaded condition

Jiang, Lijing; Nayanasiri, Dulika; Maskell, Douglas L.; Vilathgamuwa, D.M.

doi:10.1109/iecon.2013.6699357

Cited by 29 publications

(26 citation statements)

References 21 publications

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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%

“…Despite of the availability of other MPPT techniques, Perturb and Observe (P&O) algorithm is still the most common and broadly used due to its simplicity and low cost implementation [1], [3][4], [13][14][15][16][17][18]. Besides, it can be used practically in microcontroller or Digital Signal Processing System.…”

Section: Introductionmentioning

confidence: 99%

“…Yet, the effectiveness of this method depends a lot on the user knowledge. Even though MPPT with ANN controller can provide good performance, the neural network must be trained specifically beforehand with the PV array [4,13].…”

Section: Introductionmentioning

confidence: 99%

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

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

2015

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“…Another two-stage GMPP method is proposed in [5], this method requires additional circuit to measure the open circuit voltage and short circuit current, which adds complexity to the hardware and the control algorithm. Reference [6] proposes a GMPP method based on artificial neural network. This method is fast in speed and can track the GMPP under various conditions.…”

Section: Introductionmentioning

confidence: 99%

A New Two-stage Photovoltaic GMPPT Method under Partially Shaded Conditions

Jia¹,

Zhang²,

Yang³

2015

Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015

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Abstract. In a photovoltaic (PV) system that consists of multiple series-connected PV modules with bypass diode, multiple peak points could exist in the P-V curve of the PV system under partially shaded conditions (PSC), causing conventional MPPT methods sometimes unable to track the true global maximum power point (GMPP). In view of this problem, we propose in this paper a new two-stage global maximum power point tracking (GMPPT) method based on the distribution characteristic of the GMPP voltage and the dividing point voltage. The method proposed finds all the possible peak power points and compares the power of those points to find the GMPP in the first stage. In the second stage, the method sets the operation point to the point of the maximum power found in the first stage and uses the hill climbing (HC) method to keep the operation point at that point. The method proposed is validated by simulation. Simulation result shows that this method can track the GMPP effectively.

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“…In the meantime, some researchers suggest the use of some soft computing based method such as Artificial Neural Network (ANN) and Fuzzy Logic Control (FLC) [6][7][8][9]. These methods can assure a good performance and can perform well in various atmospheric condition, besides not requiring accurate mathematical modelling.…”

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confidence: 99%

A Simple Checking Algorithm with Perturb and Observe Maximum Power Point Tracking for Partially Shaded Photovoltaic System

2016

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A simple and efficient hybrid maximum power point tracking method for PV systems under partially shaded condition

Cited by 29 publications

References 21 publications

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

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

A New Two-stage Photovoltaic GMPPT Method under Partially Shaded Conditions

A Simple Checking Algorithm with Perturb and Observe Maximum Power Point Tracking for Partially Shaded Photovoltaic System

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