Experimental Verification of The Modified PSA Algorithm

Being abundant and non-polluted, solar energy is an increasingly desirable energy source. Growing research is concerned about maximum solar energy acquisition from solar panels, especially in the automatic sun-tracking of the solar panels. This paper presents a modified algorithm based on the "...

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Vydané v:	IEEE access Ročník 10; s. 1
Hlavní autori:	Li, Xiao, Wang, Liqiang, Munochiveyi, Munyaradzi
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Piscataway IEEE 2022 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:	Algorithms Automatic solar tracking system Earth Global positioning systems GPS Licenses measurement accuracy Microcontrollers Photovoltaic cells Prediction algorithms Prototypes PSA modified algorithm Satellite navigation systems Solar energy Solar panels Stepping motors Sun Time measurement Tracking Tracking systems two-axis tracking method Zenith Zenith angle
ISSN:	2169-3536, 2169-3536
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Abstract	Being abundant and non-polluted, solar energy is an increasingly desirable energy source. Growing research is concerned about maximum solar energy acquisition from solar panels, especially in the automatic sun-tracking of the solar panels. This paper presents a modified algorithm based on the "PSA Algorithm" proposed in the 2001. And presents a new automatic solar tracking system with a two-axis is designed based on the algorithm. The PSA modified algorithm is used to calculate the sun's horizontal azimuth and zenith angle combined with time, longitude, latitude, and other information. We designed a prototype mainly composed of a microcontroller, a Global Positioning System (GPS) module, a digital compass, a tilt sensor, a 555 timer, and gates, optical couples, an H-bridge and two stepper motors. Then using the proposed prototype, a series of experiments are conducted in Tianjin City. Measured zenith angle values were collected and recorded based on the PSA modified algorithm and the original PSA algorithm, compared with the actual Zenith Angle of the Sun in Tianjin City. The comparison curves of Zenith Angle show that the measurement accuracy of the modified PSA algorithm is higher than that of the PSA original algorithm.
AbstractList	Being abundant and non-polluted, solar energy is an increasingly desirable energy source. Growing research is concerned about maximum solar energy acquisition from solar panels, especially in the automatic sun-tracking of the solar panels. This paper presents a modified algorithm based on the “PSA algorithm” proposed in the 2001, and presents a new automatic solar tracking system with a two-axis is designed based on the algorithm. The PSA modified algorithm is used to calculate the sun’s horizontal azimuth and zenith angle combined with time, longitude, latitude, and other information. This experiment of the prototype mainly composed of a microcontroller, a global positioning system (GPS) module, a digital compass, a tilt sensor, a 555 timer, and gates, optical couples, a H-bridge and two stepper motors. Then a series of experiments are conducted using the proposed prototype in Tianjin City. Measured zenith angle values were collected and recorded based on the PSA modified algorithm and the original PSA algorithm, compared with the actual Zenith Angle of the Sun in Tianjin City. The comparison curves of Zenith Angle show that the measurement accuracy of the modified PSA algorithm is higher than that of the PSA original algorithm. Being abundant and non-polluted, solar energy is an increasingly desirable energy source. Growing research is concerned about maximum solar energy acquisition from solar panels, especially in the automatic sun-tracking of the solar panels. This paper presents a modified algorithm based on the "PSA Algorithm" proposed in the 2001. And presents a new automatic solar tracking system with a two-axis is designed based on the algorithm. The PSA modified algorithm is used to calculate the sun's horizontal azimuth and zenith angle combined with time, longitude, latitude, and other information. We designed a prototype mainly composed of a microcontroller, a Global Positioning System (GPS) module, a digital compass, a tilt sensor, a 555 timer, and gates, optical couples, an H-bridge and two stepper motors. Then using the proposed prototype, a series of experiments are conducted in Tianjin City. Measured zenith angle values were collected and recorded based on the PSA modified algorithm and the original PSA algorithm, compared with the actual Zenith Angle of the Sun in Tianjin City. The comparison curves of Zenith Angle show that the measurement accuracy of the modified PSA algorithm is higher than that of the PSA original algorithm.
Author	Li, Xiao Wang, Liqiang Munochiveyi, Munyaradzi
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SubjectTerms	Algorithms Automatic solar tracking system Earth Global positioning systems GPS Licenses measurement accuracy Microcontrollers Photovoltaic cells Prediction algorithms Prototypes PSA modified algorithm Satellite navigation systems Solar energy Solar panels Stepping motors Sun Time measurement Tracking Tracking systems two-axis tracking method Zenith Zenith angle
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Title	Experimental Verification of The Modified PSA Algorithm
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