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http://dx.doi.org/10.14346/JKOSOS.2019.34.1.21

Development of Hardware for Controlling Abnormal Temperature in PCS of Photovoltaic System  

Kim, Doo-Hyun (Department of Safety Engineering, Chungbuk National University)
Kim, Sung-Chul (Department of Safety Engineering, Chungbuk National University)
Kim, Yoon-Bok (Korea Polytechnics College Cheongju Campus)
Publication Information
Journal of the Korean Society of Safety / v.34, no.1, 2019 , pp. 21-26 More about this Journal
Abstract
This paper is purposed to develop hardware for controlling abnormal temperature that can occur environment and component itself in PCS. In order to be purpose, the hardware which is four part(sensing, PLC, monitoring and output) keep detecting temperature for critical components of PCS and can control the abnormal temperature. Apply to the hardware, it is selected to PV power generation facilities of 20 kW in Cheong-ju city and measured the data for one year in 2017. Through the temperature data, it is found critical components of four(discharge resistance, DC capacitor, IGBT, DSP board) and entered the setting value for operating the fan. The setting values for operating the fan are up to $130^{\circ}C$ in discharge resistance, $60^{\circ}C$ in DC capacitor, $55^{\circ}C$ in IGBT and DSP board. The hardware is installed at the same PCS(20 kW in Cheong-ju city) in 2018 and the power generation output is analyzed for the five days with the highest atmospheric temperature(Clear day) in July and August in 2017 and 2018 years. Therefore, the power generation output of the PV system with hardware increased up to 4 kWh.
Keywords
PV(photovoltaic); hardware; IGBT(insulated gate bipolar transistor); PCS (power conditioning system); DSP(digital signal processor);
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Times Cited By KSCI : 4  (Citation Analysis)
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