Publication: Fault ride through and voltage regulation for grid connected wind turbine
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Date
2011
Authors
Kyaw M.M.
Ramachandaramurthy V.K.
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Abstract
High penetration of wind generation challenges wind turbine operators to supply reliable power and extract optimum power from the wind. Hence, the fault ride through (FRT) capability of wind turbine together with the optimum power tracking and regulation of wind turbine output voltage due to fluctuating nature of the wind becomes essential. In this paper, a method is proposed to ensure that the double fed induction generator (DFIG) wind turbine continues to operate during severe grid faults and maintains a constant output voltage, irrespective of the fluctuating wind. The proposed controller also allows the DFIG wind turbine to track optimum power from the wind. Extensive simulation is performed using PSCAD/EMTDC software and results obtained show that the DFIG output voltage fulfills the grid code requirements. The results also show that the proposed method is able to track the optimum power, regulate the DFIG output voltage and perform fault ride through of wind turbine. � 2010 Elsevier Ltd.
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Keywords
Doubly-fed induction generator (DFIG) , Fault ride through (FRT) , Optimum power tracking , Voltage regulation , Wind power generation , Asynchronous generators , Computer software , Electric current regulators , Electric power generation , Power converters , Voltage control , Voltage regulators , Wind turbines , Constant output voltage , Double fed induction generator , Doubly-fed induction generator , Extensive simulations , Fault ride through (FRT) , Fault ride-through , Fluctuating wind , Grid code requirements , Grid connected wind turbine , Grid fault , Optimum power tracking , Output voltages , Power tracking , PSCAD/EMTDC , Voltage regulations , Wind generation , control system , electricity supply , power generation , software , wind power , wind turbine , Wind power