The Outdoor Field Test and Energy Yield Model of the Four-Terminal on Si Tandem PV Module

Araki, Kiyomichi; Tawa, Hiroki; Saiki, Hiromu; Ota, Yasuyuki; Nishioka, Kensuke; Yamaguchi, Masafumi

doi:10.3390/app10072529

Cited by 5 publications

(2 citation statements)

References 96 publications

(74 reference statements)

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“…A natural gas system with a 14-node power system of a certain area [43], as shown in Figure 4, is used to illustrate the effectiveness of the proposed model. The stations in the natural gas pipeline network system are categorized into pressure stations, sub-transmission stations, and pressure sub-transmission stations [44]. These station types are represented topologically using squares, circles, and hexagons, respectively.…”

Section: Natural Gas Supply Chain and Power System Initial Parameter ...mentioning

confidence: 99%

Reliability Assessment of Power Systems in High-Load Areas with High Proportion of Gas-Fired Units Considering Natural Gas Loss

Zeng

Wang

et al. 2023

Applied Sciences

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The “dual-carbon” policy underscores the crucial importance of a secure and stable natural gas supply to ensure the reliable operation of power systems. In high-load areas with a high proportion of gas-fired units and no alternative energy supply, urgent attention needs to be paid to the impact of natural gas loss on power system reliability. Given this background, a method to evaluate power system reliability that considers natural gas supply fluctuations is proposed. In this method, a reliability model of the natural gas supply chain based on the minimal cut set theory is constructed and the influence of policy regulations and economic market factors on system components is quantified. Then, a reliability-evaluation model for a power system that considers gas loss is constructed, and a non-sequential Monte Carlo simulation is used to solve it. Afterward, a reliability-evaluation method considering the power system reserve capacity is proposed. Finally, case studies on a natural gas system with a 14-node power system of a certain area are performed to verify the effectiveness of the proposed method, and the simulation results demonstrate that the reliability of the energy supply directly affects the reliability of the power system.

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Section: Natural Gas Supply Chain and Power System Initial Parameter ...mentioning

confidence: 99%

Reliability Assessment of Power Systems in High-Load Areas with High Proportion of Gas-Fired Units Considering Natural Gas Loss

Zeng

Wang

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

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“…Figure 13 shows our preliminary results 48 (c) possible aero-dynamics advantages using a shark-skin structure.…”

Section: Si Tandem Solar Cellsmentioning

confidence: 99%

Development of high‐efficiency and low‐cost solar cells for PV‐powered vehicles application

Yamaguchi

Masuda

Araki

et al. 2020

Progress in Photovoltaics

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Development of high-efficiency solar cell modules and new application fields are significant for the further development of photovoltaics (PVs) and the creation of new clean energy infrastructure based on PV. Notably, the development of PV-powered vehicle applications is desirable and very important for this end.According to the NEDO's Interim Report "PV-Powered Vehicle Strategy Committee," a new broader PV markets with more than 10 GW and 50 GW in 2030 and 2040, respectively, are expected to be established when PV-powered vehicles are developed. Cumulative PV capacity for PV-powered vehicles will be 50 GW and 0.4 TW in 2030 and 2040, respectively. This paper presents impacts on efficiency and cost for PV-powered vehicles. According to our survey, the use of more than 30% of high-efficiency PV enables 30 km per day driving without external charging and the society that the majority of the family cars run by the sunlight and without supplying gas. Thus, we are developing high-efficiency and low-cost solar cells and modules for automobile applications. In this paper, our analytical results for the efficiency potential of various solar cells for choosing candidates of high-efficiency solar cell modules for automobile applications. This paper also presents our recent approaches: demonstration car (Toyota Prius PHV) by using Sharp's high-efficiency III-V triple-junction solar cell modules with an output power of 860 W, static low concentrator InGaP/GaAs/InGaAs triple-junction solar cell module with efficiency of 32.84%, and so forth.

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Curve correction of vehicle‐integrated photovoltaics using statistics on commercial car bodies

Ota

Araki

Nagaoka

et al. 2021

Progress in Photovoltaics

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Typically, car roofs are curved, which means that vehicle‐integrated photovoltaics (VIPVs) are also curved along the roof surface. The performance of the PV module is influenced by the local cosine loss and self‐shadowing loss due to the curved surface. The ratio between the solar irradiances of curved and flat surfaces is defined as the curve correction factor, and it widely varies with the shape of the curved surface. When the curve correction factor is less than unity, the PV on a curved car roof performs worse than the PV on a flat plate. Understanding the typical range of the curve correction factor is important for the estimation of the energy generated by VIPV. We investigated the curved shapes of 100 lines of cars and 200 cases. The curved shapes were then used to extract eight nondimensional geometric parameters, and the distributions and correlations among the parameters were investigated. The parent population of the curved surfaces was estimated via a Monte Carlo simulation based on an analysis of the statistical characteristics. The distribution of curve correction factors for the car population was calculated via differential geometry weighted by the distribution of incident angles of sunlight (direct and diffused) affected by shading along the streets, which was obtained from 1 year of driving data for Miyazaki City, Japan. The curve correction factors were highly skewed, but the average value was 0.92. This means that VIPV requires a 10% boost in performance to compensate for the inherent loss due to the geometry of curved roofs.

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The Outdoor Field Test and Energy Yield Model of the Four-Terminal on Si Tandem PV Module

Cited by 5 publications

References 96 publications

Reliability Assessment of Power Systems in High-Load Areas with High Proportion of Gas-Fired Units Considering Natural Gas Loss

Reliability Assessment of Power Systems in High-Load Areas with High Proportion of Gas-Fired Units Considering Natural Gas Loss

Development of high‐efficiency and low‐cost solar cells for PV‐powered vehicles application

Curve correction of vehicle‐integrated photovoltaics using statistics on commercial car bodies

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