Power Reference Control of Wind Farms Based On the Operational Limit

Authors: Dae-Hee Son, Seung-Hwa Kang, Sang-Hee Kang, Soon-Ryul Nam

Abstract:

Wind farms usually produce power irregularly, due to  unpredictable change of wind speed. Accordingly, we should  determine the penetration limit of wind power to consider stability of  power system and build a facility to control the wind power. The  operational limit of wind power is determined as the minimum  between the technical limit and the dynamic limit of wind power. The  technical limit is calculated by the number of generators and the  dynamic limit is calculated by the constraint of frequency variation  when a wind farm is disconnected suddenly. According to the  determined operational limit of wind power, pitch angles of wind  generators are controlled. PSS/E simulation results show that the pitch  angles were correctly controlled when wind speeds are changed in  addition to loads.

Keywords: Pitch Angle, Dynamic limit, Operational limit, Technical limit.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1336995

References:

[1] Jin-woo Park, Young-ho Park, Seung-il Moon "Instantaneous Wind Power Penetration in Jeju Island” Power and Energy Society General Meeting Pittsburgh, PA, July 20-24, 2008.
[2] Seung-il Moon, Gi-chan Pyo, Jin-woo Park "Study on development of Grid code and operation scheme of Juju Island with high wind penetration”, World Energy Council, 2010. 9.
[3] Stavros A. Papathanassiu, Nikos G. Boulaxis, "Power limitations and energy field evaluation for wind farms operating in island systems”, Revewable Energy, 2006. 4.
[4] Soon-ryul Nam, Sang-hee Kang, Hae-kon Nam, Joon-ho Choi "Development of Dynamic Models for DFIG wind Farms and HVDC in Jeju Power System Using PSS/E”, KIEE Volume 60, Issue 12, pp2183-2189, December. 2011.
[5] Biessler, "BOSL Controllers Package Standard-1”, Siemens PTI, 2008.5.
[6] Yuriy Kazachkov, Ping-Kwan Keung, Krishnat Patil, "PSS/E Wind Modeling Package for GE 1.5/3.6/2.5 MW Wind Turbines User Guide” Siemens PTI Issue 5.1.0 2009. June.