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http://dx.doi.org/10.7836/kses.2019.39.1.059

A Case Study on the Islanding Detection Protection of PV System and ESS System  

Lim, Jong Rok (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Hwang, Hye-Mi (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Shin, Woo Gyun (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Ju, Young-Chul (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Jung, Young Seok (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Kang, Gi-Hwan (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Ko, Suk-Whan (Photovoltaics Laboratory, New and Renewable Energy Institute, Korea Institute of Energy Research)
Publication Information
Journal of the Korean Solar Energy Society / v.39, no.1, 2019 , pp. 59-66 More about this Journal
Abstract
BIPV or BAPV installation applied to building is increasing through public utility mandates enterprise. Solar PV energy generates only during the day, but if it is operated in convergence with ESS, which stores electrical energy, it can restrain the fossil energy used in buildings throughout the day. A solution is to converge with PV system and ESS. However, PV systems and ESS connected to the power grid in parallel can cause problems of electrical stability. A study was conducted on the case of failure to detect islanding operation under the parallel operation of PV generation and ESS that are connected in parallel to power grid. Experiments conducted various non-islanding detections under the operating conditions. In the experiment results, when one PCS - PV inverter or ESS inverter - was operating under the islanding condition, it stopped working within 0.5 seconds of the Korean grid standard. However, when both of PV inverter and ESS inverter were operating at the same time under the islanding situation, the anti-islanding algorithm did not operate normally and both inverters continuously supplied power to the connected RLC loads. islanding detection Algorithm developed by each inverter manufacturer has caused this phenomenon. Therefore, this paper presented a new test standard for islanding detection.
Keywords
Photovoltaic system; ESS system; Islanding detection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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