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에너지저장장치를 이용한 풍력발전 출력 제어 성능 평가

Assessment of performance for Output Power Control of Wind Turbine using Energy Storage System

  • 투고 : 2014.10.27
  • 심사 : 2014.11.18
  • 발행 : 2014.12.01

초록

In this paper, we describe construction of a wind stabilization demo-site and effects of output power control of wind turbines for suppression of ramp rate using ESS (Energy Storage System). It is difficult to control the output power of distributed generator such as wind turbine which of variation is very large. If the large capacity wind farm be interconnected into power system may cause blackout due to Power Quality. For these reasons, the international standards such as Grid-Code is limited to less than 10 [%/min] of renewable energy ramp rate. The case of Korea, government actively conducts propagating large-scale renewable energy for green growth policy, to interconnecting more renewable energy into power system is necessary for stabilization technology. For these reasons, the POSCO consortium has constructed a wind stabilization demo-site that is configured as 500 [kWh] battery energy storage systems can output up to 3 [C-Rate] and two wind turbines rated 750 [kW]. In POSCO consortium, which implements various methods stabilizing output power of wind turbine such as smoothing, section firming and ramp control, we derive the results of long-term demonstration that can be controlled to satisfy to the international standard about ramp rate [%/kW] of wind turbine output power.

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참고문헌

  1. RE-thinking 2050, "A 100% Renewable Energy Vision for the European Union", EREC, 2010
  2. The European Wind Energy Association, "EU Energy Policy to 2050", March 2011.
  3. Kim Yeong-Hwan, Kim Se-Ho, "Increasing Effect Analysis of the Wind Power Limit Using Energy Storage System in Jeju-Kore" Journal of the Korean Solar Energy Society Vol. 34, No. 1, pp. 81-90, February 2014. https://doi.org/10.7836/kses.2014.34.1.081
  4. Jin-woo Park, Young-ho Park, and Seung-il Moon, "Instantaneous wind power penetration in Jeju Island", Power and Energy Society General Meeting, July 2008.
  5. IEC-61400-21, "Wind Turbines, Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines"