Title :
Coordination of voltage and frequency feedback in load-frequency control capability of wind turbine
Author :
Hoseinzadeh, Bakhtyar ; da Silva, Filipe Faria ; Bak, Claus Letti
Author_Institution :
Aalborg Univ., Aalborg, Denmark
Abstract :
In close future, with high Wind Power (WP) penetration in the power system, the burden of Load-Frequency Control (LFC) is gradually shifted to Variable Speed Wind Turbines (VSWTs). In order to equip the VSWT with LFC capability to support the grid during sudden load-generation imbalance, sufficient reserve capacity should be procured. This paper addresses the LFC scheme offered by VSWT. Feedback loop of locally measured voltage and frequency data is employed to improve transient and permanent response to achieve faster and more efficient LFC action and voltage regulation. The proposed scheme demonstrates remarkable improvement in transient state of both voltage and frequency profiles in comparison with conventional LFC designs provided by Central Power Plants (CPP) or Wind Power Plants (WPP). Numerical simulations carried out in DigSilent PowerFactory confirm the superiority of proposed methodology used in Permanent Magnet Synchronous Machine (PMSG) connected to 9-bus IEEE standard test system.
Keywords :
frequency control; load regulation; permanent magnet machines; synchronous machines; transient response; wind power plants; wind turbines; feedback loop; frequency feedback; load-frequency control; permanent magnet synchronous machine; permanent response; transient response; variable speed wind turbines; voltage feedback; wind power; Frequency control; Power system stability; Rotors; Sensitivity; Voltage control; Voltage measurement; Wind turbines; Load frequency control; electrical distance; sensitivity matrix; variable speed wind turbine; wind power;
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7049341
