NDLI: Impact of characteristics of block-transformers on inrush currents and voltage distortions at the connection point of wind parks

Content Provider	IEEE Xplore Digital Library
Author	Bernadic, A. Brnadic, I. Grude, V. Leonowicz, Z.
Copyright Year	2012
Description	Author affiliation: Wroclaw University of Technology, Faculty of Electrical Engineering, Poland (Leonowicz, Z.) \|\| Development Dept., Grude, Bosnia and Herzegovina (Brnadic, I.; Grude, V.) \|\| Electricity Transmission Company, BiH, OP Mostar, Sector for Planning and Engineering, Bosnia and Herzegovina (Bernadic, A.)
Abstract	In the procedure of connecting large wind parks (WP) to the external power grid, TSO's or DSO's request is that WPs in operation do not excessively affect the power quality in the connection point. In the process of determining WP operating procedures it is necessary to include switching operations in the WP main feeder. The transformers connected near the wind generator units are then energized and a transformer inrush current appears, followed usually by voltage distortions. Those currents may cause nuisance tripping of protection devices and power quality problems in the WP connection point. For illustration, the connection to a real power grid of a large WP with twelve generators and block transformers is simulated. Considered network short circuit power is comparable to typical parameters of the transmission or distribution medium-voltage networks. Simulated inrush currents depend on the characteristics of connected devices in the network. Results of our study can be useful for correct protection relay device setting and determining optimal WP exploitation procedures.
Starting Page	59
Ending Page	63
File Size	908231
Page Count	5
File Format	PDF
ISBN	9781457718304
e-ISBN	9781457718298
DOI	10.1109/EEEIC.2012.6221522
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-18
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage distortion Magnetic flux Magnetic cores PSCAD simulation Surge protection UMEC model Switches Wind park (WP) Power transformers Surges Magnetic switching Inrush currents
Content Type	Text
Resource Type	Article

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