국내 풍력발전 이용률의 변동성 특성 분석
Analysis of Volatility Characteristics of Wind Power Capacity Factors in Korea
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초록
The high volatility caused by the intermittent nature of wind power generation adds uncertainty to power grid systems. Herein, we analyzed the characteristics of domestic wind power output by focusing on the volatility of capacity factors. Initially, the average characteristics and the number and duration of ramps, which are representative measures of the volatility of the capacity factors, were analyzed by year and month, using the data for 2018 ~ 2022 with a temporal resolution of 1 h. Subsequently, we generated data at various resolution levels using the 2019 data with a temporal resolution of 5 min and analyzed how the number and duration of ramps were affected according to the resolution. The results showed that the frequency and duration of ramps strongly depended on the time resolution of the data, and that evaluating and considering ramp characteristics can assist in enhancing the flexibility of power system operations by mitigating rapid ramp events.
Abstract
The high volatility caused by the intermittent nature of wind power generation adds uncertainty to power grid systems. Herein, we analyzed the characteristics of domestic wind power output by focusing on the volatility of capacity factors. Initially, the average characteristics and the number and duration of ramps, which are representative measures of the volatility of the capacity factors, were analyzed by year and month, using the data for 2018 ~ 2022 with a temporal resolution of 1 h. Subsequently, we generated data at various resolution levels using the 2019 data with a temporal resolution of 5 min and analyzed how the number and duration of ramps were affected according to the resolution. The results showed that the frequency and duration of ramps strongly depended on the time resolution of the data, and that evaluating and considering ramp characteristics can assist in enhancing the flexibility of power system operations by mitigating rapid ramp events.
참고문헌 (16)
- Ministry of Trade, Industry and Energy, "The 10th Basic Plan of Long-Term Electricity Supply and Demand Korea", ~ (2023)
- Wu, C., "Wind Power Generation Variations And Aggregations", CSEE Journal of Power and Energy Systems, 8(1), pp.17~38 (2022)
- Engeland, K., "Space-time Variability of Climate Variables and Intermittent Renewable Electricity Production-A Review", Renewable and Sustainable Energy Reviews, 79, pp.600~617 (2017)
- Dlyoke, C., "A New Approximate Capacity Factor Method for Matching Wind Turbines to a Site: Case Study of Humber Region, UK", International Journal of Energy and Environmental Engineering, 10, pp.451~462 (2019)
- Bolson, N., "Capacity Factors for Electrical Power Generation from Renewable and Nonrenewable Sources", PNAS, 119(2) (2022)
- Jorgenson, J., "A Systematic Evaluation of Wind's Capacity Credit in the Western United States", Wind Energy, 24(10), pp.1107~1121 (2021)
- Paik. C., "ELCC-based Capacity Credit Estimation Accounting for Uncertainties in Capacity Factors and Its Application to Solar Power in Korea", Renewable Energy, 164, pp.833~841 (2021)
- Malvaldi, A., "A Spatial and Temporal Correlation Analysis of Aggregate Wind Power in an Ideally Interconnected Europe", Wind Energy, 20, pp.1315~1329 (2017)
- Coughlin, K., "Multi-Scale Analysis of Wind Power and Load Time Series Data", Renewable Energy, 68, pp.494~504 (2014)
- Zhang, X., "Energy Quality : A Definition", IEEE Open Access Journal of Power and Energy, 7, pp.430~440 (2020)
- "Electric Power Statistics Information System(EPSIS)"[URL]
- "Public Data Portal"[URL]
- Kim, H., "Analysis of Wind Energy Status and Capacity Factor of South Korea by EPSIS Wind Power Generation Data", Journal of Wind Energy, 8(2), pp.21~27 (2017)
- Paik, C. H., "Analysis of Capacity Factors and Capacity Credits for Wind Turbines Installed in Korea", Journal of the Korean Solar Energy Society, 30(4), pp.79~91 (2019)
- Lim, H., "Analysis of Ramp Characteristics of Shinan Wind Power Plant", Journal of Wind Energy, 9(3), pp.13~18 (2018)
- Analysis of Wind Power Ramping Behavior in ERCOT, "Wan, Y.", NREL, ~, pp.TP-5500-49218 (2011)