Title :
STATCOM modeling impact on wind turbines´ Low Voltage Ride Through capability
Author :
Awad, A.S.A. ; Salama, M.M.A. ; Shatshat, R.E.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
Ideal Static Compensator (STATCOM) modeling may be deceiving for determining the protection device settings that will operate to fulfill Low Voltage Ride Through (LVRT) requirements of wind turbines. If these settings are not accurately calculated, premature tripping or machines instability may occur and hence LVRT will not be achieved in such cases. Therefore, a more realistic STATCOM model is introduced in this paper and compared to the ideal one. Squirrel Cage Induction Generator (SCIG) based wind turbines are studied using a simplified approach based on torque speed characteristics of induction machines. The transient stability margin is proposed as an indicator for LVRT capability. Theoretical expectations are verified by digital simulation using EMTDC simulation package.
Keywords :
asynchronous generators; digital simulation; power system transient stability; static VAr compensators; wind turbines; EMTDC simulation package; LVRT capability; STATCOM modeling; digital simulation; induction machine instability; low voltage ride through requirement; premature tripping; protection device; squirrel cage induction generator; static compensator modeling; torque speed characteristics; transient stability margin; wind turbine; Automatic voltage control; Educational institutions; Induction machines; Mathematical model; Power system stability; Torque; Wind turbines; Low Voltage Ride Through (LVRT); Squirrel Cage Induction Generator (SCIG); Static Compensator (STATCOM);
Conference_Titel :
Power and Energy Society General Meeting, 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1000-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2011.6039003
