Tracking control and output power optimization of a concentrator photovoltaic system with polar axis

Lv, Hui; You, Zheng; Wang, Jinfang; Chen, Benyuan; Sheng, Fei; Lv, Qinghua

doi:10.1016/j.ijleo.2016.01.092

Cited by 13 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By considering N s and N p as the number of series and parallel cells or modules, respectively, the output current and voltage of the PV array or module can be calculated as Equations 23 and 24. [77][78][79] In Figure 18, four-square solar cells are connected together to form a bigger square. 70 An optical concentrating system causes the solar beams to focus on the smaller surface and consequently, the solar cell can be designed much smaller than an equivalent structure in the flat PV systems.…”

Section: Models For Solar Cell Combinationmentioning

confidence: 99%

“…Also, the heat load of the solar cell can be decreased by using a cold mirror for the second reflector. [77][78][79] In Figure 18, four-square solar cells are connected together to form a bigger square. 77 This structure can prepare the same radiant energy for each cell due to radial symmetry of the irradiance distribution.…”

Section: Models For Solar Cell Combinationmentioning

confidence: 99%

See 1 more Smart Citation

Generation and combination of the solar cells: A current model review

Khatibi

Astaraei

Ahmadi

2019

Energy Science & Engineering

104

View full text Add to dashboard Cite

Generally, first and second generations of photovoltaic (PV) cells are including mono‐crystalline silicon, amorphous silicon, and dye‐synthesized solar cells. Investigating the electrical current behavior of these sorts of PV cells shows that a modified multi‐ or single diode(s) model with shunt and series resistance can use as a good choice in a specific range of the current. For other constructions such as multi‐junction PV cells that consist of the third generation, the network models are the best choice. Also, the network models can be used for the first and second generations to improve the validity of model in the wider range of current. In addition to existing generations, PV array and modules, which are serial and parallel arrays of PV cells, will lead to a higher current or voltage. The main disadvantage of using these sorts of systems is their more space occupation. This problem can be solved by using the concentrated PV (CPV) systems that focus the received irradiation on a smaller surface. By considering the generated current, voltage, power, temperature effect, and financial analysis, it seems third‐generation PV systems are more efficient among all the generations. Finally, by considering the ratio of generated current on the occupied space, the CPV systems will be a better choice.

show abstract

Section: Models For Solar Cell Combinationmentioning

confidence: 99%

Section: Models For Solar Cell Combinationmentioning

confidence: 99%

Generation and combination of the solar cells: A current model review

Khatibi

Astaraei

Ahmadi

2019

Energy Science & Engineering

104

View full text Add to dashboard Cite

show abstract

“…Alexandru et al [19] designed a polar dual-axis system for improving the energetic efficiency of a photovoltaic panel, it can reduce the angular field of the daily motion and the number of actuating operations, without significantly affecting the incoming solar energy. Lv et al [20] investigated a concentrator photovoltaic (CPV) system with the polar tracking system which can satisfy to the maximum extent and the operating costs of the CPV system can be reduced. However, solar receivers must still be free to rotate with the solar concentrator which increases the energy consumption for tracking and cannot be separated or repaired conveniently.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Study on the Optical Performance of a Fixed-Focus Fresnel Lens Solar Concentrator Using Polar-Axis Tracking

et al. 2018

View full text Add to dashboard Cite

Most sun-tracking systems of solar concentrators are expensive, sensitive to operational costs, and complicated in optical design in which the receiver must be free to rotate about the axis. To overcome the aforementioned problems, this study presents a fixed-focus Fresnel lens solar concentrator (FFFSC) using polar-axis tracking which allows the Fresnel lens to concentrate sunlight to a fixed small heat-receiving area and the receiver remained fixed in location and rotation. Experimental research has been conducted to obtain the optical characteristics of the FFFSC for different solar times, tracking errors, and periodical adjustment errors. It has been found that maximum values of the relative optical efficiency loss (η re-opt,loss) and minimum value of the optical efficiency (η opt) of the FFFSC for different solar times are 1.87% and 71.61%, respectively. The mean value and maximum value of the local concentration ratio of the solar flux on the receiver are more than 86.64 and 1319.43, respectively. When the tracking error and periodical adjustment error are within 1 • , the η opt of the FFFSC can reach 70.38% and 68.94%, respectively. The optical characteristics of FFFSC is also verified numerically. Especially, according to the total year simulation of the FFFSC's optical characteristics, maximum value of η re-opt,loss is 0.116%, which means the proposed the FFFSC can achieve fixed-focus.

show abstract

“…However, an accurate model is required for design, control and evaluation of PV systems. Accuracy of PV models depends on parameters of the model (Lv et al, 2016;Malekzadeh et al, 2019aMalekzadeh et al, , 2019b. As these parameters which include photon current (I ph ), saturation current (I o ), ideality factor of the diode (n), series resistance (R s ) and parallel resistance (R p ) of the solar cell are not available in data sheet of the module manufacturer, researchers are trying to extract these parameters using various methods (Fathy and Rezk, 2017;Salahshour et al, 2019aSalahshour et al, , 2019b.…”

mentioning

confidence: 99%

Parameter identification of solar cells and fuel cell using improved social spider algorithm

Kashefi

Sadegheih

Mostafaeipour

et al. 2020

COMPEL

View full text Add to dashboard Cite

Purpose To design, control and evaluate photovoltaic (PV) systems, an accurate model is required. Accuracy of PV models depends on model parameters. This study aims to use a new algorithm called improved social spider algorithm (ISSA) to detect model parameters. Design/methodology/approach To improve performance of social spider algorithm (SSA), an elimination period is added. In addition, at the beginning of each period, a certain number of the worst solutions are replaced by new solutions in the search space. This allows the particles to find new paths to get the best solution. Findings In this paper, ISSA is used to estimate parameters of single-diode and double-diode models. In addition, effect of irradiation and temperature on I–V curves of PV modules is studied. For this purpose, two different modules called multi-crystalline (KC200GT) module and polycrystalline (SW255) are used. It should be noted that to challenge the performance of the proposed algorithm, it has been used to identify the parameters of a type of widely used module of fuel cell called proton exchange membrane fuel cell. Finally, comparing and analyzing of ISSA results with other similar methods shows the superiority of the presented method. Originality/value Changes in the spider’s movement process in the SSA toward the desired response have improved the algorithm’s performance. Higher accuracy and convergence rate, skipping local minimums, global search ability and search in a limited space can be mentioned as some advantages of this modified method compared to classic SSA.

show abstract

Tracking control and output power optimization of a concentrator photovoltaic system with polar axis

Cited by 13 publications

References 13 publications

Generation and combination of the solar cells: A current model review

Generation and combination of the solar cells: A current model review

Simulation and Experimental Study on the Optical Performance of a Fixed-Focus Fresnel Lens Solar Concentrator Using Polar-Axis Tracking

Parameter identification of solar cells and fuel cell using improved social spider algorithm

Contact Info

Product

Resources

About