Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Kaygusuz, Abdullah(35)
- Sipahi, Ferkan(35)
- Karsli, Orhan(34)
- Dokuz, Abdurrahman(30)
- Duran, Celal(30)
- Kandemir, Raif(29)
- Ozdes, Duygu(28)
- Maden, Nafiz(27)
- Uzun, Sevda(27)
- Merdan, Mehmet(26)
- Vural, Alaaddin(26)
- Öztürk, Serkan(25)
- Araz, Onur(24)
- Kulakaç, Nurşen(24)
- Ashyralyyev, Charyyar(23)
- Yildiz, Salih(23)
- Yilmaz, Ozgur(23)
- Doğan, Kadir Caner(21)
- Arslan, Mehmet(20)
- Aydin, Faruk(20)
- Doğru, Bülent(20)
- Bayraktar, Alemdar(19)
- Kankal, Murat(19)
- Ayaydin, Hasan(18)
- Baltaci, Cemalettin(18)
- Yolcu, Halil(18)
- Cakir, Tufan(17)
- Cengiz, Ekrem(17)
- Demir, Selim(17)
- Gücer, Mehmet Ali(17)
- Akaryali, Enver(16)
- Artan, Seyfettin(16)
- Hayaloğlu, Pınar(16)
- Kaya, Afşin Ahmet(16)
- Tosunoğlu, Büşra(16)
- Uysal, Ibrahim(16)
- Kurt, Kemal(15)
- Ozturk, Samet(15)
- Reis, Hatice Catal(15)
- Aksakal, Vecihi(14)
Yayınlar
- MakaleYalnız künye2023Scopus SJRQ1Do earthquake survivors want to escape the threats of earthquakes and why?
Özdemir, Ahmet; Mızrak, Sefa
Destructive earthquakes and the possibility of experiencing destructive earthquakes may cause people to move from their area to safer ones. However, despite high earthquake risk, people may not want to leave the area they reside for various reasons. The objective of this study was to investigate whether earthquake experience, earthquake insurance, satisfaction with city, self-efficacy, risk perception, social support, post-earthquake insecurity and price gouging was correlated with relocation willingness in an earthquake-prone area. Data were collected using a survey from 1114 people residing in Kocaeli (Türkiye), where a devastating earthquake occurred in 1999. 610 people who participated in the study were affected by this earthquake and 504 people were not affected. In order to better understand the impact of earthquake exposure on relocation willingness, ordinal logistic regression analyzes were performed separately for the earthquake affected and unaffected sample. The result showed that the relocation willingness of the unaffected participants was higher than the relocation willingness of the affected participants. People who were psychologically affected by the earthquake were more likely to relocate. Satisfaction with the city reduced the participants' relocation willingness mostly. The fear of earthquakes and perceived insecurity after a future earthquake increased all participants' relocation willingness. It is hoped that this study will guide scientists and disaster managers working in regions where destructive disasters may occur to improve strategies related to relocation policy and earthquake risk reduction.
AtıfScopus10WoS9OpenAlex10
İncele - MakaleYalnız künye2023Scopus SJRQ3Phenolic Components, Mineral Composition, Physicochemical, and Bioactive Properties of Opuntia ficus-indica with Different Drying Methods
Capar, Tugba Dursun; Dedebas, Tugba; Kavuncuoglu, Hatice; Karatas, Seyda Merve; Ekici, Lutfiye; Yalcin, Hasan
Cactus pear fruit (Opuntia ficus-indica) have nutritional and antioxidant properties due to the presence of vitamins, fibers, minerals, and polyphenols. The present paper aims to examine the effects of drying methods (sun, oven, vacuum, and freeze) on the bioactivity and antimicrobial quality of prickly pear fruit. Total phenolic content (TPC), antioxidant (DPPH) and antimicrobial activity, mineral content, phenolic compounds, and color values were investigated. The highest antioxidant activity (DPPH) and color values were observed in the freeze-dried samples, which were very close to the values for fresh samples. The total phenolic content (TPC) of the freeze-dried sample was 503.53 mg GAE/100 g. The most abundant phenolic compound was p-hydroxybenzoic acid (210 ppm) identified in fresh and freeze-dried fruit extract, which may be more effective antimicrobials than the rest. The mineral content of freeze- and vacuum-dried samples was very close to that of fresh fruit. This study indicates that freeze-drying of prickly pear fruit improved the bioactive and antimicrobial properties without leading to nutritional loss.
AtıfScopus5WoS4OpenAlex3İncele - MakaleYalnız künye2023Scopus SJRQ1Full-scale structural evaluations of İskenderpaşa minaret
Aymelek, Abdullah; Yanik, Yusuf; Demirtaş, Betül; Yildirim, Ömer; Çalik, İsmet; Türker, Temel
Nowadays, innovative methods have been used for observing and structural evaluating of historical structures. In this paper, it is presented the full-scale structural assessments of a minaret after a Finite Element model calibrating according to vibration test results. Also, the structural behaviours under earthquake and wind loads were identified by considering the environmental effects on the selected masonry minaret of İskenderpaşa Mosque. First of all, modal analysis was executed on the three-dimensional Finite Element model created according to field survey in ANSYS Workbench. In-situ vibration tests were implemented at different intervals by using developed vibration measurement system. The experimental modal parameters were attained from collected signals. The experimental results were used as reference values in model calibration of this minaret to reflect the existing structural behaviour. Model calibration process was carried out on the initial model both by changing of material properties of masonry wall and by taking into account the interactions with mosque walls and ground. Full-scale structural evaluation was carried out under earthquake and wind loads on both the initial and the calibrated models in the weak direction of this minaret. The top displacements, drift ratios, principal stress values and their distributions were determined. It was shown that the analyses on the calibrated model produce more realistic structural behaviour.
AtıfScopus21WoS20İncele - MakaleYalnız künye2023Scopus SJRQ4Description of the Unknown Female of the Harvestman Rafalskiaazizsancari Kurt, Yagmur & Tezcan, 2019 (Arachnida: Opiliones: Phalangiidae) from Turkey
Kurt, Kemal; Yagmur, Ersen Aydln; Kurt, Plnar
The female of Rafalskia azizsancari Kurt, Yagmur & Tezcan, 2019, previously known only from the male in Turkey, is now described based on new material from Ödemiş District, Izmir Province, Turkey. Detailed morphological descriptions, photographs and illustration of the female ovipositor are provided.
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2023Scopus SJRQ1Needs of caregivers of patients with palliative neurological problems: a qualitative study
Ulutaşdemİr, Nilgün; Ay, Halil; Göçmen, Adalet; Uzun, Sevda; Kulakaç, Nurşen
Objective: This article aimed to investigate the needs of caregivers of patients with palliative neurological problems and contribute to the solution proposals. Material-method: Phenomenological research design, a qualitative research design, was used in the study. The article was conducted with 16 relatives of patients with palliative neurological problems. The interviews were conducted using face-to-face in-depth semi-structured interview form. Colaizzi’s phenomenological analysis method used for the analyse. Results: In the analysis of the data, three categories, eight main themes, and seventeen sub-themes emerged. As a result of the interviews with the participants, the category of the effect of neurological palliative disease on the quality of life of individuals was gathered under three main themes, namely mental, physical, and social effects, and in the process of coping with the disease requiring neurological palliative care, two main themes were identified as emotion-focused coping and problem-focused coping. Conclusion: It was concluded in our study that having a patient in palliative care has psychological, social, and physical effects on the relatives of the patients. The burden of caregiving mostly affects the relatives of patients negatively. Relatives of patients mostly need time for themselves, moral support, and companion support.
AtıfScopus18WoS24OpenAlex30İncele - MakaleYalnız künye2023Scopus SJRQ3Local gravity and magnetic anomalies associated with the oil and gas reservoirs in the cretaceous carbonate deposits of Yevlakh-Agjabedi depression, Azerbaijan
Gadirov, Vagif G.; Maden, Nafiz; Gadirov, Kamran V.
Local gravity and magnetic anomalies are employed to identify potential hydrocarbon reservoirs in the Middle Kura Depression (MKD) within the South Caspian basin in Azerbaijan. The MKD basin in Azerbaijan including the Yevlakh-Agjabedi trough covers a large part of the Kura intermountain basin between the Greater and Lesser Caucasus. In the study region, several local gravity and magnetic anomalies are discovered related to oil and gas deposits in the sedimentary depression whose thickness is 12–14 km. Gravity minima and maxima expressed by different wavelength anomalies are indicative of density variations within the basin. Local gravity minima with an intensity of 0.3–0.4 mGal identified in the study areas are related to the oil–gas deposits. While the local positive magnetic anomalies are associated with the volcanic formations, local negative magnetic anomalies appear over the productive parts of the buried structure within the sedimentary complex. Intense local magnetic minima anomalies with an intensity of 20–30 nT are evidence of oil and gas accumulations. The limitations of traditional methods for interpreting gravity and magnetic data to locate oil and gas fields have led to the use of gravity field gradients. This alternative approach has proven advantageous, as it confirms the results of gravity exploration and is useful for directly searching for hydrocarbons.
AtıfScopus3WoS3İncele - Kitap BölümüYalnız künye2023Artificial intelligence in health and applications
Köse, Asli
Artificial intelligence technologies are tools that develop with the contribution of different disciplines from statistics to computer science. These tools contribute to the health sector in many ways, from reducing medical errors, especially in costs, to increasing the patient's accessibility to health services. In addition to the contributions of artificial intelligence technologies, there are ethical concerns and concerns about the use and dissemination of these technologies. The recent COVID-19 pandemic has supported the increase in the level of patient participation in healthcare processes and the transfer of personalized applications to digital environments. Within the scope of this research, artificial intelligence concepts and applications in the field of health will be included. The advantages and disadvantages of artificial intelligence applications in the field of health service delivery will be evaluated.
AtıfScopus10OpenAlex8İncele - Kitap BölümüYalnız künye2023Cyberwars and national business systems from a macro-institutional perspective
Bekar, Fevziye
From the past to the present, strategies have been developed for business internationalization in the context of strategic management. These strategies have been examined theoretically and practically. To give an example of these approaches, the internationalization processes of businesses were primarily examined under two sub-headings, static and dynamic. A process where globalization affects national culture, social life, and borders is lived. Therefore, macro theory literature is another field that deals with the globalization process and internationalization strategies. The aim of this study is to examine how cyber wars will affect national business systems, based on the macro theory literature, with the interpretive paradigm.
- MakaleYalnız künye2023Scopus SJRQ1The effectiveness of post-disaster psychotherapeutic interventions: A systematic review and meta-analysis study
Semerci, Murat; Uzun, Sevda
Objective: This study aimed to determine the level of impact of post-disaster psychotherapeutic interventions. Material method: For this systematic review and meta-analysis study, the studies were accessed through the databases of PubMed, Web of Science, EBSCOhost, Google Scholar, and YÖK Thesis Center in July-September 2022 without any year limitation. As a result of the examinations, 27 studies were included in the study. The data were synthesized by meta-analysis and narrative methods. Results: According to the results of this systematic review and meta-analysis, post-disaster psychotherapeutic interventions were found to be effective (SMD:−0838, %95 CI: −1,087- 0.588; Z = −6588, p = 0.000, I2 = %95,249). Individuals who have undergone psychotherapeutic interventions experience either no or fewer post-traumatic stress disorder symptoms. The country/continent of the research, the types of psychotherapeutic interventions, the type of disaster, and the measurement tool used influence the effectiveness of the psychotherapeutic interventions. Psychotherapeutic interventions applied especially after earthquakes, one of the types of disasters, were found to be effective. In addition, EMDR, cognitive behavioral therapy, psychotherapy, and exposure method were found to reduce posttraumatic stress disorder symptoms in individuals in the post-disaster period. Conclusion: Post-disaster psychotherapeutic interventions have positive impacts on people and improve their mental health.
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İncele - MakaleYalnız künye2023Scopus SJRQ1Multi-Scenario Analysis of Rockfall Hazard for a Historical Vaulted Masonry Building in Sumela Monastery
Nasery, Mohammad Manzoor; Cosgun, Suleyman Istemihan; Temel, Bayram Ali
Sumela Monastery located in the northeast city of Trabzon is one of the most-visited touristic places in Turkey. As it is located in a mountainous area, rockfall hazards have become a crucial problem that the Monastery complex faces, especially in the last decade. Due to several rockfall cases, the monastery was closed for visitors in 2015 to take preventative measures. The current study examines the whole stages assessing and eliminating rockfall hazards that a historical Vaulted masonry building in the Sumela Monastery is exposed to. First of all, field studies were conducted to determine the kind and type of rockfall hazard. For this purpose, the regional geology of the area was evaluated and due to the inaccessibility of the region, industrial climbers were recruited to climb the slope above the Historical Vaulted building to determine the locations, dimensions, and risk level of the risky blocks that threatened the building. After that, the terrain of the risky area was modeled with Unmanned Aerial Vehicle (UAV) using the digital photogrammetry method. In the last step of the field studies, samples were taken to determine the mechanical and physical properties of the rocks and several laboratory tests were conducted. In the second part of the study, probabilistic analyses of 2400 rockfall simulations with eight different trajectories were conducted to calculate the maximum run-out distance, velocity, kinetic energy, and bounce heights of falling blocks. In the third part, to evaluate the damage status on the vaulted building, six different possible rockfall scenarios determined by the rockfall analysis were simulated using the Finite Element Method. After determining the rock block size that would not cause significant damage to the building, the cleaning and controlled removal method of the risky blocks was determined. In the last stage, controlled crushing and removing practices for risky rock blocks were carried out and the building was restored. Consequently, the rockfall hazard for the historical Vaulted building was eliminated and the monastery complex opened for visitors in 2021.
AtıfScopus13WoS13OpenAlex14İncele - MakaleYalnız künye2023Scopus SJRQ4MODELING DISEASE TRANSMISSION DYNAMICS WITH RANDOM DATA AND HEAVY TAILED RANDOM EFFECTS: THE ZIKA CASE
Bekiryazici, Z.; Kesemen, T.; Merdan, M.; Khaniyev, T.
In this study, we investigate a compartmental model of Zika Virus transmission under random effects. Random effects enable the analysis of random numerical characteristics of transmission, which cannot be modeled through deterministic equations. Data obtained from Zika studies in the literature are used along with heavy tailed random effects to obtain new random variables for the parameters of the deterministic model. Finally, simulations of the model are carried out to analyze the random dynamics of Zika Virus transmission. Deterministic results are compared with results from the simulations of the random system to underline the advantages of a random modeling approach. It is shown that the random model provides additional results for disease transmission dynamics such as results for standard deviation and coefficients of variation, making it a valuable alternative to deterministic modeling. Random results suggest around 90% - 120% coefficient of variation for the random model underlining the fact that the randomness should not be ignored for the transmission of this disease.
AtıfScopus2WoS2İncele - MakaleYalnız künye2023Scopus SJRQ1Calculation of radiation shielding parameters of YBa2Cu3O7 and Y3Ba5Cu8O18 superconductors for the energies from 122 to 1332 keV using EGS4 code
Kaya, Selim
This Study aims to evaluate the radiation shielding efficiency of YBa2Cu3O7 and Y3Ba5Cu8O18 superconducting ceramics. In the current study, the radiation shielding efficiency of YBa2Cu3O7 and Y3Ba5Cu8O18 superconducting ceramics were calculated using the EGS4 code and discussed experimentally and theoretically by comparing with XCOM data. The mass attenuation coefficients (μ/ρ) for YBa2Cu3O7 and Y3Ba5Cu8O18 superconductors and their contents was investigated theoretically (EGS4 and WinXcom) and experimentally at gamma-ray energies from 122 to 1332 keV. The theoretical values have been computed in the energy range from 1 keV to 100 MeV using WinXcom program. Then, using the mass attenuation coefficients, it was determined some shielding parameters such as mean free path (MFP), half value layer (HVL), effective atomic number (Zeff), radiation protection efficiency (RPE) and gamma–ray kerma coefficients ((kγ). It has been seen that the theoretical and the empirical results were in agreement. The data and findings from this study can guide further research and development of shielding materials for gamma-ray and neutron shielding applications.
AtıfScopus13WoS11OpenAlex13İncele - MakaleYalnız künye2023Scopus SJRQ2COVID-19 Vaccine Acceptance, Trust in Vaccine, Anxiety Levels, and Related Factors in Turkish Society
Aydln, Merve; Kulakaç, Nurşen; Uzun Şahin, Ceyda
Background: Vaccine acceptance and trust in vaccines pose a complex process affected by many factors. The present study was conducted to determine coronavirus disease 2019 (COVID-19) vaccine acceptance, trust in vaccines, anxiety levels, and related factors in Turkish society. Methods: The data of this cross-sectional and descriptive-correlational study were collected with the snowball method by using an online questionnaire throughout Turkey. The study was conducted between March 15 and April 3, 2021, with 3148 participants from 7 regions and 81 cities in Turkey. Results: It was found that the participants accepted the vaccine at 72.8%, and the trust rate in the vaccine was 66.0%. It was also found that women, single participants, those who had immune system diseases, and with COVID-19 had higher Coronavirus Anxiety Scale scores at significant levels. According to Logistic Regression Analysis, gender, age, trust in the vaccine, perception of risk levels regarding COVID-19, and coronavirus anxiety levels are factors affecting the intentions of participants to accept/reject the vaccine. It was determined that male participants were more likely to accept the coronavirus vaccine (P = 0.028). It was found that health-care employees had higher trust in the coronavirus vaccine (P = 0.006) and acceptance rates (P = 0.010) at significant levels compared with the general population. Conclusion: The COVID-19 vaccine acceptance rate in Turkish society was found to be high, and the level of trust in vaccines and anxiety levels were above the moderate level.
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2023Scopus SJRQ3Gyroscopic suspension for a heavy vehicle
Ünker, Faruk
In this study, an angular momentum generated by a flywheel gyroscope is performed as a suspension to prevent vehicle vibration. The frequency equations are derived and the optimal flywheel speed is obtained for vibration attenuation of the sprung mass. It is observed that the control moment gyroscope (CMG) keeps the sprung mass in the upright position with a small vibration amplitude of a steady motion. The flywheel speed (Ω) is in relation to the amplitude of gimbal motion and the frequency (ω) of the axle’s excitation. Besides, a simulation model of CAE software (RecurDyn) is built to validate the equations of motion.
AtıfScopus6WoS4İncele - MakaleYalnız künye2023Scopus SJRQ3The effect of the Y2O3 buffer layer on the microstructural and physical properties of melt-processed Y358 superconductor
Başoğlu, Mehmet; Çakir, Bakiye; Duman, Şeyda; Aydiner, Alev
The Y3Ba5Cu8O18 (Y358) superconductors were produced using the Melt-Powder-Melt-Growth (MPMG) method. In the crystal growth process, Y2O3 powder was used as a substrate in both powder and tablet form. The first sample was produced without using any buffer layer, the second sample was produced with a powdered Y2O3 buffer layer, and the third sample was produced with a tablet-form Y2O3 buffer layer. The effect of the Y2O3 substrate on the structural and physical properties of the Y358 superconductor samples was investigated. Superconducting phases were observed in all samples of Y358 through XRD measurements, confirming their presence. Samples fabricated using the powder and tablet forms of the Y2O3 substrate had a better microstructure than the sample fabricated without a Y2O3 substrate. The highest critical current density (J c) value was obtained at 77 K for the Y358 sample produced with a Y2O3 powder substrate, and the J c value was calculated as 1.2 × 104 A cm–2 according to the Bean model.
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2023Scopus SJRQ1Investigation of used PCM-integrated into building exterior walls for energy savings and optimization of PCM melting temperatures
Terhan, Meryem; Ilgar, Gamze
In the study, the effects on the building's thermal energy performance of using two different phase change materials (PCMs) integrated into the exterior walls at various thicknesses and melting temperatures have been investigated. Four exterior wall types have been designed by changing the position of PCM integrated into the exterior wall for the purpose to decrease heating and cooling energy demand. For each wall type, three different thicknesses (layers) have been studied and energy savings that PCM provided by decreasing the heating and cooling energy demands have been calculated on a monthly and annual basis. According to the energy simulation analyses, the configuration provided the highest heating energy savings (21.32 %) on an annual basis is the three-layer BioPCM27 integrated exterior wall with a melting temperature of 21 °C. The monthly optimum melting temperatures of PCMs have been determined based on the charge and discharge processes of PCM integrated into the exterior walls by evaluating the results of hourly energy simulation analysis. The annual average optimum melting temperature varies between 18 and 19 °C, depending on the exterior wall and material types. The three-layer (3L) InfiniteRPCM21C configuration (Type 3) has the best thermal energy performance among all exterior wall types, with 24.45 % total energy savings in the cooling season and 14.76 % in the heating season.
AtıfScopus71WoS64OpenAlex73İncele - MakaleYalnız künye2023Scopus SJRQ1Unpacking the power of user-generated videos in hospitality and tourism: a systematic literature review and future direction
Polat, Eray; Çelik, Fatih; Ibrahim, Blend; Köseoglu, Mehmet Ali
We review user-generated video (UGV)-research in hospitality and tourism (H&T), provide an overview of its current-state, and suggest ways forward. We adopted a systematic literature review methodology and reviewed 66 articles with TCM (theory/context/methodology) framework. UGV-research focuses on (i) destination image perception, (ii) short-form videos and travel live-streaming, (iii) behavioral intentions, and (iv) crisis management. Theoretical development is diverse, given the descriptive nature of research questions, but it is still in its infancy. The context varies by H&T setting, type of social media platform, population, and country. Research methods and techniques range from traditional analysis to advanced machine learning or artificial intelligence-based quantitative approaches, predominantly qualitative methods.
AtıfScopus61WoS43OpenAlex55İncele - MakaleYalnız künye2023Scopus SJRQ1A Proposed V2V Path Loss Model: Log-Ray
Kuzulugil, Kenan; Tugcu, Zeynep Hasirci; Cavdar, Ismail Hakki
Vehicle-to-vehicle (V2V) communication that has prominent involvement in the design of innovative communication solutions for the intelligent transportation system. Therefore, to develop V2V channel models, the knowledge of the propagation channel on which comprehensive research efforts have been carried is vital. In this study, we focused on the analysis and modeling of path loss characteristics for V2V communications and proposed a log-ray path loss model with the motivation of overcoming remarkable fitting errors between the two-ray model and measured data where the path loss exponent corresponds to different from 2. First, channel measurements were performed at 5.9 GHz with commercially available DSRC OBU devices for five different scenarios in typical highway and suburban environments in Gümüşhane, Turkey. Then, the large-scale characteristics of different propagation scenarios were analyzed and the proposed log-ray model performance was compared with commonly used log-distance and two-ray path loss models qualitatively and quantitatively. On the other hand, analysis of small-scale modeling and shadowing were also conducted for all scenarios and presented in the results. The findings clearly demonstrate that the proposed log-ray path loss model fits the measured data with a smaller RMSE value (2.54 dB) than the results of the log-distance (3.07 dB) and two-ray (3.72 dB) path loss models in the literature. In other words, the proposed model has approximately 17.5% and 32% increase in fitting performance according to the log-distance and the two-ray path loss models, respectively. The study results will be helpful for better performance analysis and system design of V2V communication.
AtıfScopus13WoS11OpenAlex12İncele - MakaleYalnız künye2023Scopus SJRQ1Effect of foundation embedment ratio in suppressing seismic-induced vibrations using optimum tuned mass damper
Araz, Onur; Cakir, Tufan; Ozturk, Kasif Furkan; Kaya, Dilek
Tuned mass damper (TMD), which is used in structures to mitigate the dynamic responses caused by environmental loads, is tuned according to the dominant frequency of the structures. The dominant frequency of structure built on soil with low stiffness is significantly affected by the soil-structure interaction (SSI). In previous studies, only the surface foundation case is considered to investigate the design parameters of TMD considering SSI effects and the embedment depth of the foundation is neglected in these studies. Thus, this paper investigates the optimization of TMD for mitigation of responses of a high-rise building considering various depths of embedment and soil properties. The optimum parameters of TMD are investigated using five different optimization algorithms (i.e., simulated annealing, sequential quadratic programming, genetic algorithm, pattern search, and particle swarm optimization). The objective function minimizes the peak acceleration amplitude at the top of the structure. The effectiveness of optimum TMD is verified to use 20 near-fault pulse-like ground motions. The comparisons show that the embedment ratio of the foundation and the soil properties significantly affect the optimization of TMD.
AtıfScopus28WoS26OpenAlex27İncele - BildiriYalnız künye2023Current Sources and Actual PV Modules based Photovoltaic (PV) Emulator for Testing MPPT Algorithms and PV Inverters
Zhou, Zhongfu; Wang, Yidong; Yanarates, Cagfer; MacAulay, John
PV array emulator has been widely used for testing PV inverters and their control algorithms such as maximum power point tracking (MPPT) algorithms. Various power electronics converter-based PV emulators have been presented in many research papers. This paper presents a PV emulator that is based on indoor solar panels (without solar irradiance) and external current source (dc power supply). The external current source is used to emulate the photo current that is usually generated by solar panel under sunlight. The advantages of the proposed PV emulator are that it can generate similar electrical characteristics of actual PV panel without sunlight, it is suitable for testing PV inverters and MPPT algorithms in indoor conditions where the sunlight is usually very weak. In addition, a PV array emulator that can emulate electrical performance under partial shading conditions was constructed by using two solar panels and two current sources. Test results show that the proposed PV emulator provides a similar performance of real PV array under real sun light. It provides a low-cost solution for testing PV inverters and control algorithms inside a laboratory environment.
AtıfScopus2OpenAlex2İncele