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 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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    ABSTRACT: With the advances of power electronic technologies and permanent magnet materials, there have been great interest to direct driven permanent magnet synchronous generators (PMSG) among wind turbine manufactures. Since PMSG directly connected to the wind turbine, controlling of the power electronic converters has vital role at gearless connection. This paper presents grid side converter (GSC) control algorithm for a grid connected PMSG used in wind power conversion system. In developed system operation of the GSC are controlled by using vector control algorithm and a PLL algorithm is employed for compensation of phase difference between grid and GSC voltage. Operation of the system has been verified through simulation.
    2013 International Conference on Renewable Energy Research and Applications (ICRERA); 10/2013
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    • "The aerodynamic torque on the shaft of a wind turbine rotor was described by [14] "
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    ABSTRACT: With a high penetration of wind turbines, the proportion of synchronous generation in the power system will be reduced at times, thus creating operating difficulties especially during frequency events. Therefore, it is anticipated that many grid operators will demand inertia response from wind turbines. In this article, different ways for emulating inertia response in full-rated power converter-based wind turbines equipped with permanent magnet synchronous generators are considered. Supplementary control signals are added to the controller of the wind turbine to extract stored energy from the rotating mass and DC-link capacitors. Simulations in MATLAB/Simulink show that the inertia response is improved by adding a term proportional to the rate of change of frequency and by extracting the stored energy in the DC-link capacitors.
    06/2013; 1(1). DOI:10.1007/s40565-013-0002-6
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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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    ABSTRACT: For power rating of 2MW or higher, the medium voltage (MV) back-to-back (BTB) neutral-point clamped (NPC) converters are most preferable choice for wind turbine manufacturers as they reduce cost, size and complexity of the system compared to the BTB two-level converters. In this paper, a new MV topology using diode rectifier, three-level boost (TLB) and NPC converter has been proposed to further reduce the cost and size. The dc-link maximum power point tracking (MPPT) control scheme has been proposed with which the TLB performs MPPT and balancing of dc-link capacitors and thus provides a greater flexibility for NPC control. The simulation results for 3MW/3000V/53.33Hz non- salient pole PMSG wind energy system validate the proposed topology and control scheme.
    Energy Conversion Congress and Exposition (ECCE), 2011 IEEE; 01/2011
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