State of the art artificial intelligence-based MPPT techniques for mitigating partial shading effects on PV systems – A review

Seyedmahmoudian, Mehdi; Horan, Ben; Soon, Tey Kok; Rahmani, Rasoul; Oo, Amanullah M. T.; Mekhilef, Saad; Stojcevski, Alex

doi:10.1016/j.rser.2016.06.053

Cited by 297 publications

(154 citation statements)

References 109 publications

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“…UCs are gaining popularity in many industries as a reliable energy storage device because of their specific properties: larger capacitance, high power density, high energy density, and fast charging. Among existing UC-based storage technologies [4][5][6][7][8][9][10], symmetric double-layer UCs [5] and asymmetric Li-ion hybrid UCs [6][7][8] exhibit superior behavior to that of others. Alizadeh et al showed that the application of UCs improves the performance of microgrid frequency regulation as a result of improved virtual system inertia [11].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Study on Dynamic Parameters of Symmetric and Asymmetric Ultracapacitors

et al. 2019

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Electrical storage components such as ultracapacitors (UC) have received significant attention from various industrial sectors, from electric vehicles to renewable power plants. This article presents the investigations on dynamic properties of asymmetric Li-ion hybrid (CPQ2300S: 2300 F, 2.2-3.8 V, JSR Co., Tokyo, Japan) and symmetric double-layer (BCAP3400: 3400 F, 2.85 V, Maxwell Technologies Co., San Diego, CA, USA) ultracapacitors. The internal resistance and capacitance of both UCs were slightly changed with respect to current and voltage alterations, but these changes were more prominent for the Li-ion UC. The internal resistance of the Li-ion UC became five times larger and its capacitance decreased significantly when the temperature decreased from +25 • C to −20 • C. More importantly, the double-layer UC exhibited nearly constant capacitance for a wide range of temperature changes (0 • C to −40 • C), although internal resistance increased somewhat. Electrochemical impedance spectroscopy analysis of both UCs was performed for the frequency range of 1 Hz-1 kHz and in the temperature range from −15 • C to +30 • C. It was observed that the temperature effects were much more pronounced for the asymmetric Li-ion UC than that of the symmetric double-layer UC. This work also proposes an improved equivalent circuit model based on an infinite number of resistance-capacitance (r-C) chains. The characteristic behavior of symmetric UCs can be explained precisely by the proposed model. This model is also applicable to asymmetric UCs, but with less precision. similar asymmetric UCs are also applicable to pulsed electric power sources [12,13]. Piórkowski et al. presented a case study about the application of UCs in hybrid systems including an engine start module (ESM), a photovoltaic (PV) module, a battery, and an internal combustion engine (ICE) [14]. In continuation, the hybrid model control strategy was proposed for a double active bridge-based supercapacitor energy storage system [15]. More importantly, the service lifetime of UCs is three times higher compared to electrochemical storage batteries (e.g., Li-ion or lead-acid) although UCs are relatively bulky and voluminous [16]. Consequently, there is a lack of accurate information regarding the ability of Li-ion UCs to provide voltage and current during charge-discharge cycles. Previously, a significant number of experimental investigations were carried out [16][17][18][19][20][21][22] in order to understand the characteristic behavior of UCs. Different direct measurement methods for the evaluation of UC parameters were also proposed [16][17][18][19][20]. A comprehensive review of characterization methods for supercapacitor modeling and general parameter identification techniques were also discussed [21,22].A significant amount of effort has been made to describe dynamic UC behavior using different types of equivalent circuits [23][24][25][26][27][28][29][30]. Some works presented modeling approaches based on electrochemical explanations of UC performance [31][32][33...

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Section: Introductionmentioning

confidence: 99%

Comprehensive Study on Dynamic Parameters of Symmetric and Asymmetric Ultracapacitors

et al. 2019

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“…Many improved MPPT methods have attained high tracking speed in the dynamics. For example, a modified firefly algorithm has higher tracking precision than the ordinary PSO algorithm [9]. Noises due to measurement error can reduce the tracking accuracy of an MPPT algorithm.…”

Section: Tracking Performancementioning

confidence: 99%

“…Photovoltaic technology (PV) is an important technology that can convert solar irradiance directly to electrical energy through a PV panel [5,7]. However, solar PV panels have drawbacks, such as very low energy conversion efficiency (less than 22.5%), the high manufacturing cost of energy, and high dependence on environmental factors [5,[7][8][9]. The power of a PV array is unstable, and the current and voltage characteristics curve of a PV cell is non-linear at different solar irradiations, temperatures, and loads [10,11].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Maximum Power Point Tracking Approaches and Photovoltaic Systems

et al. 2018

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This paper elaborates a comprehensive overview of a photovoltaic (PV) system model, and compares the attributes of various conventional and improved incremental conductance algorithms, perturbation and observation techniques, and other maximum power point tracking (MPPT) algorithms in normal and partial shading conditions. Performance evaluation techniques are discussed on the basis of the dynamic parameters of the PV system. Following a discussion of the MPPT algorithms in each category, a table is drawn to summarize their key specifications. In the performance evaluation section, the appropriate PV module technologies, atmospheric effects on PV panels, design complexity, and number of sensors and internal parameters of the PV system are outlined. In the last phase, a comparative table presents performance-evaluating parameters of MPPT design criterion. This paper is organized in such a way that future researchers and engineers can select an appropriate MPPT scheme without complication.

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“…According to the proposed algorithm, as shown in blocks 1 and 2 (B-1 and B-2), the voltage current of the solar cell and PV system, and the temperature of air are measured. The irradiances and temperatures of every solar cell obtained are calculated using the functions shown in Equations (30) and (31) (B-3). The vector → S , which removes the elements unsatisfied the Equation (22), can be structured and the numbers of LMPPs are calculated (B-4).…”

Section: Proposed Gmppt Control Strategymentioning

confidence: 99%

Analysis of Dynamic Characteristic for Solar Arrays in Series and Global Maximum Power Point Tracking Based on Optimal Initial Value Incremental Conductance Strategy under Partially Shaded Conditions

Zhao

Zhou

et al. 2017

Energies

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Partial shading (PS) is an unavoidable condition which significantly reduces the efficiency and stability of a photovoltaic (PV) system. With PS, the system usually exhibits multiple-peak output power characteristics, but single-peak is also possible under special PS conditions. In fact it is shown that the partial shading condition (PSC) is the necessary but not sufficient condition for multiple-peak. Based on circuit analysis, this paper shows that the number of peak points can be determined by short-circuit currents and maximum-power point currents of all the arrays in series. Then the principle is established based on which the number of the peak points is to be determined. Furthermore, based on the dynamic characteristic of solar array, this paper establishes the rule for determination of the relative position of the global maximum power point (GMPP). In order to track the GMPP within an appropriate period, a reliable technique and the corresponding computer algorithm are developed for GMPP tracking (GMPPT) control. It exploits a definable nonlinear relation has been found between variable environmental parameters and the output current of solar arrays at every maximum power point, obtained based on the dynamic performance corresponding to PSC. Finally, the proposed method is validated with MATLAB ® /Simulink ® simulations and actual experiments. It is shown that the GMPPT of a PV generation system is indeed realized efficiently in a realistic environment with partial shading conditions.

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State of the art artificial intelligence-based MPPT techniques for mitigating partial shading effects on PV systems – A review

Cited by 297 publications

References 109 publications

Comprehensive Study on Dynamic Parameters of Symmetric and Asymmetric Ultracapacitors

Comprehensive Study on Dynamic Parameters of Symmetric and Asymmetric Ultracapacitors

Performance Evaluation of Maximum Power Point Tracking Approaches and Photovoltaic Systems

Analysis of Dynamic Characteristic for Solar Arrays in Series and Global Maximum Power Point Tracking Based on Optimal Initial Value Incremental Conductance Strategy under Partially Shaded Conditions

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