Article

Michalke, G.: Multi-pole permanent magnet synchronous generator wind turbines’ grid support capability in uninterrupted operation during grid faults. IET Renew. Power Gener. 3(3), 333-348

Wind Energy Dept., Riso-DTU Nat. Lab., Riso, Denmark
IET Renewable Power Generation (Impact Factor: 2.28). 10/2009; 3(3):333 - 348. DOI: 10.1049/iet-rpg.2008.0055
Source: IEEE Xplore

ABSTRACT Emphasis in this paper is on the fault ride-through and grid support capabilities of multi-pole permanent magnet synchronous generator (PMSG) wind turbines with a full-scale frequency converter. These wind turbines are announced to be very attractive, especially for large offshore wind farms. A control strategy is presented, which enhances the fault ride-through and voltage support capability of such wind turbines during grid faults. Its design has special focus on power converters' protection and voltage control aspects. The performance of the presented control strategy is assessed and discussed by means of simulations with the use of a transmission power system generic model developed and delivered by the Danish Transmission System Operator Energinet.dk. The simulation results show how a PMSG wind farm equipped with an additional voltage control can help a nearby active stall wind farm to ride through a grid fault, without implementation of any additional ride-through control strategy in the active stall wind farm.

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    • "A new and simple control method for maximum power tracking in a variable speed wind turbine by using a step-up dc-dc converter has been discussed in [6]. On the fault ride-through and grid support capabilities of multi-pole permanent magnet synchronous generator (PMSG) wind turbines with a full-scale frequency converter has been tested in [7]. These wind turbines are announced to be very attractive, especially for large offshore wind farms. "
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    • "The variable speed wind turbine technology using permanent magnet synchronous generators (PMSG) and fullscale power converters is rapidly growing due to higher efficiency, lower mechanical stress and reduction in installation and maintenance costs [3]. Moreover, the leading/lagging grid reactive power control and fault ride through operation can be achieved without the need for additional equipment [4]. Many power converter topologies are being developed for PMSG wind energy conversion systems (WECS) in a continued effort to reduce cost, increase reliability and improve wind energy conversion efficiency [5]-[7]. "
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