Global Maximum Power Point Tracking (MPPT) of a Photovoltaic Module Array Constructed through Improved Teaching-Learning-Based Optimization

Chao, Kuei‐Hsiang; Wu, Meng-Cheng

doi:10.3390/en9120986

Cited by 27 publications

(34 citation statements)

References 27 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Incorporating smart‐tracking and self‐learning strategies can improve the tracking speed and steady‐state response of TLBO‐based GMPPT. The results revealed that I‐TLBO performs well in comparison with conventional TLBO, ACO and PSO in terms of GMPPT, convergence time, oscillation around steady state and efficiency [72].…”

Section: Metaheuristic Techniques Used As Gmpptmentioning

confidence: 99%

Grade point average assessment for metaheuristic GMPP techniques of partial shaded PV systems

Eltamaly

Farh

Al-Saud

2019

IET Renewable Power Generation

View full text Add to dashboard Cite

Photovoltaic (PV) maximum power point tracker (MPPT) is compulsory in PV systems to improve its output power and efficiency. Conventional techniques can track the maximum power under uniform irradiances efficiently and accurately. Nevertheless, in case of partial shading conditions where multiple peaks are generated, these conventional techniques may stick at any local peak of the P-V curve of the PV energy systems. Metaheuristic techniques have been applied to PV energy systems to overcome this limitation, where most of these techniques can catch the global MPP (GMPP) easily and efficiently. In case of dynamic change of partial shading, most of these techniques need reinitialisation to disperse the search agents to look again for a new position and value of GMPP. This study introduces a brief description, assessment and evaluation for these techniques. In addition, it proposes a novel assessment criterion based on grade point average for evaluating and ranking the 20 famous metaheuristic and hybrid GMPP techniques. This evaluation methodology can help researchers, designer and decision maker to choose the best option for MPPT of dynamic change of partially shading PV energy systems.

show abstract

Section: Metaheuristic Techniques Used As Gmpptmentioning

confidence: 99%

Grade point average assessment for metaheuristic GMPP techniques of partial shaded PV systems

Eltamaly

Farh

Al-Saud

2019

IET Renewable Power Generation

View full text Add to dashboard Cite

show abstract

“…Therefore, according to KVL, the string voltage equals the summation of modules voltage in the string, and according to KCL, the array current equals the summation of string current in the array [31]. However, in a practical PV array, a central maximum power point tracker (MPPT) [45][46][47][48] is used to get its global maximum power (GMPP) [49][50][51][52]. Therefore, all modules are led to work at their maximum potential, which is not exactly same for all modules even from same power rating due to the manufacturing tolerances, which causes MML in the PV array.…”

Section: Mathematical Model Of MML In Sp Configurationmentioning

confidence: 99%

Performance Comparison of Mismatch Power Loss Minimization Techniques in Series-Parallel PV Array Configurations

2019

View full text Add to dashboard Cite

The mismatch in current-voltage (I-V) characteristics of photovoltaic (PV) modules causes significant power loss in a large PV array, which is known as mismatch power loss (MML). The PV array output power generation can be improved by minimizing MML using different techniques. This paper investigates the performance of different module arrangement techniques to minimize MML both for long series string (LSS) and long parallel branch (LPB) in series-parallel (SP) array configurations at uniform irradiance condition. To investigate the significance of MML LSS-SP configuration with dimensions: 1 × 40, 2 × 20, 4 × 10, 5 × 8 and LPB-SP configuration with dimensions: 40 × 1, 20 × 2, 10 × 4, 8 × 5 were used. A comparative analysis is made to find the effectiveness of MML reduction techniques on PV arrays with three different power ratings. Simulation results show that the PV modules arrangement obtained by the genetic algorithm (GA) and current based arrangement (Im) performed better than the arrangements obtained by all other techniques in terms of PV array output power and MML minimization. The performance of the proposed technique was analyzed for both LSS-SP and LPB-SP array configurations in 400 W, 3400 W, and 9880 W arrays. To substantiate the simulation results experiment was performed using a 400 W PV array in outdoor weather condition and obtained similar results. It was also observed that the percentage of recoverable energy (%RE) obtained by arranging the modules using the GA method was higher than Im based method for both LSS-SP and LPB-SP array configurations. A maximum %RE of 4.159 % was recorded for a 5 × 8 LSS-SP array configuration by applying the GA based MML reduction method.

show abstract

“…where ξ c represents the damping factor, f sw is the switching frequency and the settling time is chosen as t s = N c × T sw , with T sw = 1/ f sw [2,6]. In addition, the voltage reference y 1 = x 1 required in Equation (2) can be obtained by different MPP-ST [21][22][23][24]. In the present work, the Fractional Method is used due to its simplicity [24].…”

Section: Nominal Mppt Controllermentioning

confidence: 99%

Open- and Short-Circuit Fault Identification for a Boost dc/dc Converter in PV MPPT Systems

et al. 2018

View full text Add to dashboard Cite

This paper proposes a fault identification system for short and open-circuit switch faults (SOCSF) for a dc/dc converter acting as a Maximum Power Point Tracker (MPPT) in Photovoltaic (PV) systems. A closed-loop operation is assumed for the boost dc/dc converter. A linearizing control plus a Proportional-Derivative (PD) controller is suggested for PV voltage regulation at the maximum power point (MPP). In this study, the SOCSF are modeled by using an additive fault representation and the fault identification (FI) system is synthesized departing from a Luenberger observer. Hence, an FI signal is obtained, which is insensitive to irradiance and load current changes, but affected by the SOCSF. For FI purposes, only the sensors used in the control system are needed. Finally, an experimental evaluation is presented by using a solar array simulator dc power supply and a boost dc/dc converter of 175 W in order to validate the ideas this study exposes.

show abstract

Global Maximum Power Point Tracking (MPPT) of a Photovoltaic Module Array Constructed through Improved Teaching-Learning-Based Optimization

Cited by 27 publications

References 27 publications

Grade point average assessment for metaheuristic GMPP techniques of partial shaded PV systems

Grade point average assessment for metaheuristic GMPP techniques of partial shaded PV systems

Performance Comparison of Mismatch Power Loss Minimization Techniques in Series-Parallel PV Array Configurations

Open- and Short-Circuit Fault Identification for a Boost dc/dc Converter in PV MPPT Systems

Contact Info

Product

Resources

About