Simplified I-V Characteristic Tester for Photovoltaic Modules Using a DC-DC Boost Converter

Khatib, Tamer; Elmenreich, Wilfried; Mohamed, Azah

doi:10.3390/su9040657

Cited by 37 publications

(12 citation statements)

References 20 publications

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“…The DC-link capacitor droop control technique is used with a DC-DC converter, using the power equilibrium principle to determine the duty cycle ratio is given by equation 15for stable output and power quality improvement [57], [58]. The PV system is parallelly coupled with the AC system, as depicted in Figure 13, where is the PV cell, and are the voltages across the DC link.…”

Section: ) Dc-link Capacitor Droop Control (Dc-link Cdc) Methodsmentioning

confidence: 99%

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

et al. 2020

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A significant growth in solar photovoltaic (PV) installation has observed during the last decade in standalone and grid-connected power generation systems. The solar PV system has a non-linear output characteristic because of weather intermittency, which tends to have a substantial effect on overall PV system output. Hence, to optimize the output of a PV system, different maximum power point tracking (MPPT) techniques have been used. But, the confusion lies while selecting an appropriate MPPT, as every method has its own merits and demerits. Therefore, a proper review of these techniques is essential. A "Google Scholar" survey of the last five years (2015-2020) was conducted. It has found that overall seventy-one review articles are published on different MPPT techniques; out of those seventy-one, only four are on uniform solar irradiance, seven on non-uniform and none on hybrid optimization MPPT techniques. Most of them have discussed the limited number of MPPT techniques, and none of them has discussed the online and offline under uniform and hybrid MPPT techniques under non-uniform solar irradiance conditions all together in one. Unfortunately, very few attempts have made in this regard. Therefore, a comprehensive review paper on this topic is need of time, in which almost all the well-known MPPT techniques should be encapsulated in one paper. This article focuses on classifications of online, offline, and hybrid optimization MPPT algorithms, under the uniform and non-uniform irradiance conditions. It summarizes various MPPT methods along with their mathematical expression, operating principle, and block diagram/flow charts. This research will provide a valuable pathway to researchers, energy engineers, and strategists for future research and implementation in the field of maximum power point tracking optimization.

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Section: ) Dc-link Capacitor Droop Control (Dc-link Cdc) Methodsmentioning

confidence: 99%

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

et al. 2020

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“…A DC-DC boost converter is a switch-mode power supply which converts a direct voltage coming from a DC source into another higher direct voltage value by adjusting the switch duty cycle d. The output voltage of the DC-DC boost converter can be calculated as Equation ( 7) [30,31].…”

Section: Dc-dc Boost Convertermentioning

confidence: 99%

An Efficient and Robust Current Control for Polymer Electrolyte Membrane Fuel Cell Power System

et al. 2021

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Taking into account the restricted ability of polymer electrolyte membrane fuel cell (PEMFC) to generate energy, it is compulsory to present techniques, in which an efficient operating power can be achieved. In many applications, the PEMFC is usually coupled with a high step-up DC-DC power converter which not only provides efficient power conversion, but also offers highly regulated output voltage. Due to the no-linearity of the PEMFC power systems, the application of conventional linear controllers such as proportional-integral (PI) did not succeed to drive the system to operate precisely in an adequate power point. Therefore, this paper proposes a robust non-linear integral fast terminal sliding mode control (IFTSMC) aiming to improve the power quality generated by the PEMFC; besides, a digital filter is designed and implemented to smooth the signals from the chattering effect of the IFTSMC. The stability proof of the IFTSMC is demonstrated via Lyapunov analysis. The proposed control scheme is designed for an experimental closed-loop system which consisted of a Heliocentric hy-Expert™ FC-50W, MicroLabBox dSPACE DS1202, step-up DC-DC power converter and programmable DC power supplies. Comparative results with the PI controller indicate that a reduction of 96% in the response time could be achieved using the suggested algorithm; where, up to more than 91% of the chattering phenomenon could be eliminated via the application of the digital filter.

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“…Characterization of a PV Panel. One of the most significant parameter of a PV panel is the I-V curve, which includes PV panel performance metrics such as efficiency, η; open circuit voltage, V oc ; short circuit current, I sc ; maximum power, P max ; voltage at maximum power point, V mp ; and current at maximum power, I mp [32]. In order to achieve the I-V curve of a PV panel, it is required to control the current generated by a PV panel from zero current point to short circuit point [33].…”

Section: Mosfet As An Electronic Load and I-vmentioning

confidence: 99%

Outdoor Performance Assessment of New and Old Photovoltaic Panel Technologies Using a Designed Multi-Photovoltaic Panel Power Measurement System

Karabulut

Kusetoğulları

Kivrak

2020

International Journal of Photoenergy

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This paper presents a new multi-photovoltaic panel measurement and analysis system (PPMAS) developed for measurement of atmospheric parameters and generated power of photovoltaic (PV) panels. Designed system presented with an experimental study evaluates performance of four new and four 5-year-old PV panel technologies which are based on polycrystalline (Poly), monocrystalline (Mono), copper indium selenide (CIS), and cadmium telluride (CdTe) in real time, under same atmospheric conditions. The PPMAS system with the PV panels is installed in Yildirim Beyazit University, Ankara Province, in Turkey. The designed PPMAS consists of three different subsystems which are (1) photovoltaic panel measurement subsystem (PPMS), (2) meteorology measurement subsystem (MMS), and (3) data acquisition subsystem (DAS). PPMS is used to measure the power generation for PV panels. MMS involves different types of sensors, and it is designed to determine atmospheric conditions including wind speed, wind direction, outdoor temperature, humidity, ambient light, and panel temperatures. The measured values by PPMS and MMS are stored in a database using DAS subsystem. In order to improve the measurement accuracy, PPMS and MMS are calibrated. This study also focuses on outdoor testing performances of four new and four 5-year-old PV panels. Average monthly panel efficiencies are estimated as 8.46%, 8.11%, 5.65%, and 3.88% for new Mono, new Poly, new CIS, and new CdTe PV panels, respectively. Moreover, average monthly panel efficiencies of old panels are calculated as 8.22%, 7.85%, 5.35%, and 3.63% in the same order. Test results obtained from the experimental system are also statistically examined and discussed to analyze the performance of PV panels in terms of monthly panel efficiencies.

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Simplified I-V Characteristic Tester for Photovoltaic Modules Using a DC-DC Boost Converter

Cited by 37 publications

References 20 publications

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

Investigation of MPPT Techniques Under Uniform and Non-Uniform Solar Irradiation Condition–A Retrospection

An Efficient and Robust Current Control for Polymer Electrolyte Membrane Fuel Cell Power System

Outdoor Performance Assessment of New and Old Photovoltaic Panel Technologies Using a Designed Multi-Photovoltaic Panel Power Measurement System

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