Application of indirect matrix converters to variable speed doubly fed induction generators

2008 ◽  
Author(s):  
Eduardo Reyes ◽  
Ruben Pena ◽  
Roberto Cardenas ◽  
Pat Wheeler ◽  
Jon Clare ◽  
...  
Keyword(s):  
Variable Speed ◽  
Matrix Converters ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

Variable-speed Wind Turbines with Doubly-fed Induction Generators Part II: Power System Stability

2002 ◽  
Vol 26 (3) ◽  
pp. 171-188 ◽  
Author(s):  
Vladislav Akhmatov
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Short Circuit ◽  
Power Grid ◽  
System Stability ◽  
Variable Speed ◽  
Electrical Currents ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

This article describes the second part of a larger investigation of dynamic interaction between variable-speed wind turbines equipped with doubly-fed induction generators (DFIG) and the power grid. A simulation model is applied for dynamic stability investigations, with the entire power grid subjected to a short-circuit fault. During the grid disturbances, the DFIG converter is found to be the most sensitive part of the wind turbine. Therefore the electrical currents are determined using the transient generator model. The converter action is crucial for wind turbine operation associated with such disturbances, especially regarding tripping or uninterrupted operation.

Control of Variable Speed Wind Turbines with Doubly-Fed Induction Generators

2004 ◽  
Vol 28 (4) ◽  
pp. 411-432 ◽  
Author(s):  
Anca D. Hansen ◽  
Poul Sørensen ◽  
Florin Iov ◽  
Frede Blaabjerg
Keyword(s):  
Wind Turbines ◽  
Variable Speed ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

Variable-Speed Wind Turbines with Doubly-Fed Induction Generators Part III: Model with the Back-to-back Converters

2003 ◽  
Vol 27 (2) ◽  
pp. 79-91 ◽  
Author(s):  
Vladislav Akhmatov
Keyword(s):  
Wind Turbines ◽  
Short Circuit ◽  
Practical Investigations ◽  
System Stability ◽  
Variable Speed ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Set Up ◽  
Doubly Fed ◽  
Short Circuit Fault

A model of the back-to-back converter is set up and implemented in the simulation tool PSS/E as a user-developed model. This model is applied with that of the doubly-fed induction generator (DFIG), described in previous parts of this work [parts II and I]. The latter models variable-speed wind turbines in power stability investigations. Subjected to a short circuit fault, there will be a risk of converter blocking, followed by tripping of the wind turbine [1, 3]. The main reasons of blocking are over-current in the rotor converter and over-voltage in the dc-link. The DFIG model, with representation of the back-to-back converter, results in (a) more accurate replication of the current in the rotor converter and (b) improved computation of the dc-link voltage. These improvements are compared with the model with representation of the rotor converter only. Hence, the DFIG model with representation of the back-to-back converters might be preferred, in practical investigations of power system stability, to models with representation of the rotor converter only.

Variable-Speed Wind Turbines with Doubly-Fed Induction Generators

2002 ◽  
Vol 26 (2) ◽  
pp. 85-108 ◽  
Author(s):  
Vladislav Akhmatov
Keyword(s):  
Wind Turbines ◽  
Ad Hoc ◽  
Variable Speed ◽  
Control Loops ◽  
Model Code ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed ◽  
Power System Dynamic Stability ◽  
Large Work

Variable-speed pitch-controlled wind turbines with doubly-fed induction generators (DFIG) are modelled for power system dynamic stability. The model is explained and the parts of the model are verified. The model is implemented in the simulation tool PSS/E and created as a modular structure. This means that it is possible easily to add other control loops, as other modules, to the existing model code for ad-hoc investigations. This article is the first part of a large work dealing with investigation of dynamic interaction between the variable-speed wind turbines equipped with DFIG and the power grid.

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