NDLI: Evaluating the performance of external fault ride-through solutions used in wind farms with fixed speed induction generators when facing unbalanced faults

Content Provider	IEEE Xplore Digital Library
Author	Resende, F.O. Lopes, J.
Copyright Year	2009
Description	Author affiliation: Power System Unit of INESC Porto, Porto and with the School of Technology and Management ¿ Polytechnic Institute of Bragança (ESTG-IPB), Bragança Portugal (Resende, F.O.) \|\| Power System Unit of INESC Porto and with the Department of Electrical and Computer Engineering of FEUP ¿ Faculdade de Engenharia da Universidade do Porto, Porto, Portugal (Lopes, J.)
Abstract	The continuous growth of wind energy integration on electrical networks has led many utilities to impose fault ride-through capability to wind farms. This means that wind turbines must remain connected to the system during severe fault occurrence. Regarding the existing wind farms equipped with fixed speed induction generators directly connected to the grid, fault ride-through capability is commonly assisted with dynamic compensation devices, such as DSTATCOM units. These power electronic devices are controlled for voltage regulation purposes and behave like a balanced three-phase voltage source converter since commonly used control techniques are based only on the positive sequence of both voltage and current measured at its connection point. These control techniques are suitable only when compensation devices are operated under balanced conditions and therefore its performance when facing unbalanced faults needs to be evaluated. This paper tackles with this subject and the results obtained through numerical simulations demonstrate that over voltages can arise on non faulty phases leading to the wind farm disconnection.
Starting Page	1
Ending Page	6
File Size	312730
Page Count	6
File Format	PDF
ISBN	9781424422340
DOI	10.1109/PTC.2009.5282211
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-28
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system stability Wind farms Induction generators Voltage control Wind energy Wind turbines Power electronics Current measurement Power measurement Voltage measurement over voltages Fault ride through grid codes DSTATCOM wind farms fixed speed induction generators unbalanced faults
Content Type	Text
Resource Type	Article

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