Improved DPC method of VSC to fulfill low voltage ride through requirements in wind power applications

An analysis and improvement of the direct power control method (DPC) for converter feeding generators in wind power applications under disturbed grid voltages is presented. An improved DPC method is derived and described, and its performance is analyzed as well. This improved DPC permits a robust and dynamic control of active and reactive power even under symmetrical and unsymmetrical voltage sags, unbalanced grid voltages, and voltage harmonics.

[1]  M.P. Kazmierkowski,et al.  Direct power control with virtual flux estimation for three-phase PWM rectifiers , 2000, ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543).

[2]  Hirofumi Akagi,et al.  Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components , 1984, IEEE Transactions on Industry Applications.

[3]  Toshihiko Noguchi,et al.  Direct power control of PWM converter without power source voltage sensors , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[4]  J. L. Rodriguez-Amenedo,et al.  Direct power control of voltage source inverters with unbalanced grid voltages , 2008 .

[5]  Frede Blaabjerg,et al.  Control in Power Electronics: selected problems , 2002 .

[6]  F. W. Fuchs,et al.  Transformer Based Voltage Sag Generator to test Renewable Energy Systems during Grid Faults in the Laboratory , 2010 .

[7]  P. Antoniewicz,et al.  Predictive Direct Power Control Algorithm for Three Phase AC/DC Converter , 2007, EUROCON 2007 - The International Conference on "Computer as a Tool".

[8]  Marian P. Kazmierkowski,et al.  Simple direct power control of three-phase PWM rectifier using space-vector modulation (DPC-SVM) , 2004, IEEE Transactions on Industrial Electronics.

[9]  J.-P. Gaubert,et al.  Direct power control of shunt active filter , 2007, 2007 European Conference on Power Electronics and Applications.

[10]  F. Blaabjerg,et al.  Direct power control for three-phase PWM rectifier with active filtering function , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[11]  Marco Liserre,et al.  New Positive-sequence Voltage Detector for Grid Synchronization of Power Converters under Faulty Grid Conditions , 2006 .

[12]  Fang Zheng Peng,et al.  Reactive power and harmonic compensation based on the generalized instantaneous reactive power theory for three-phase power systems , 1996 .

[13]  Math Bollen,et al.  Understanding Power Quality Problems: Voltage Sags and Interruptions , 1999 .

[14]  P. Antoniewicz,et al.  Virtual Flux Predictive Direct Power Control of three phase AC/DC converter , 2008, 2008 Conference on Human System Interactions.

[15]  J. Doval-Gandoy,et al.  On the discrete-time implementation of resonant controllers for active power filters , 2009, 2009 35th Annual Conference of IEEE Industrial Electronics.

[16]  Mariusz Malinowski,et al.  Sensorless Control Strategies for Three - Phase PWM Rectifiers , 2001 .