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Development of Wireless IoT Sensors for Individual Photovoltaic Module Monitoring

태양광 모듈 개별 모니터링을 위한 무선 IoT센서

Jongsung Park1*
,
Changheon Kim2
,
Jiwon Lee2
,
Jihyun Kim2
,
Sanghyuk Yoo3
,
Bum Seung Yang3**
박 종성1*
,
김 창헌2
,
이 지원2
,
김 지현2
,
유 상혁3
,
양 범승3**
1Department of Energy Engineering, Gyeongsang National University, Jinju 52849, Korea
2Solar Energy R&D Dept., Green Energy Institute, Mokpo 58656, Korea
3Powercons, Ltd., Naju 58324, Korea
1에너지공학과, 경상국립대학교, 진주시, 경상남도, 52849
2태양에너지연구실, 녹색에너지연구원, 목포시, 전라남도, 58656
3파워콘스, 나주시, 전라남도, 58324
*Corresponding Author
**Corresponding Author
30 September 2021. pp. 106-109
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Abstract

In order to perform photovoltaic (PV) operation and management (O&M) efficiently, individual PV module monitoring is becoming more important. In this research, we developed wireless IoT sensor which can monitor individual photovoltaic modules. This IoT sensor can detect the output voltage, current and module temperature of individual modules and provide monitored data by wireless communication. Measured voltage error was 1.23%, and it shows 16.6 dBM, 0.42sec and 7.1 mA for voltage, transmittance output, response time and mean power consumption, respectively. IoT sensors were demonstrated in the test field with real climate environment condition and each of 5 sensors showed precise results of voltage, current and temperature. Also, sensors were compared with commercial power-optimizers and showed result difference within 5%.

Keywords
IoT
Sensor
PV module
monitoring
Wireless
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Information
  • Publisher :Korea Photovoltaic Society
  • Publisher(Ko) :한국태양광발전학회
  • Journal Title :Current Photovoltaic Research
  • Volume : 9
  • No :3
  • Pages :106-109
  • Received Date : 2021-09-08
  • Revised Date : 2021-09-14
  • Accepted Date : 2021-09-15
  • DOI :https://doi.org/10.21218/CPR.2021.9.3.106
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