DC bus control of variable speed wind turbine using a buck boost converter

... a variable- speed control can adjust the speed of the turbine as the wind speed changes, so as to operate at the peak of the Cp curve. This will maximize the power generated for a particular ... in a buck boost converter inserted between the rectifier output and the DC bus. The control relationship between generator speed and the DC bus voltage is u...

Ngày tải lên: 03/01/2014, 19:15

... Spirov * † and Zahari Zarkov * * Technical University-Sofia, Bulgaria, e-mail: vl_lazarov@tu-sofia.bg, d_spirov@tu-sofia.bg, zzz@tu-sofia.bg † G2ELab, INP Grenoble, Saint-Martin-d'Hères, France, ... voltage Fig. 11. DC voltages at real wind conditions. T12-123 New Control Strategy for Variable Speed Wind Turbine with DC- DC converters Vladimir Lazarov * , Danie...

Ngày tải lên: 03/01/2014, 19:15

... reinforced plastic 16) Output voltage 12 or 24 V 17) Minimum operation temperature Artic °C 18) Maximum operation temperature Sahara °C 19) Acoustic levels at a distance of 20 m? at nacelle? (wind ... Demonstration at installation company Netherlands Waregem On the roof of industrial building Belgium Perugia Plasto Work and Wind Engineering Italy CREST Stand alone electricity...

Ngày tải lên: 24/03/2014, 05:20

... and boost operation, feeding power to a grid with a reasonable power quality from a widely variable dc source. Fig. 11. Gating signals of the 3-device buck- boost inverter. TABLE I SUMMARY ... applications as distributed generators (DG), variable sources often cause wide changes in the converter input voltage above and below the output ac voltage, thus demanding a...

Ngày tải lên: 03/01/2014, 19:16

... REPRESENTATIVES John B. Bass, Jr., M.D. American Thoracic Society University of South Alabama Mobile, AL Nancy E. Dunlap, M.D. American College of Chest Physicians University of Alabama at Birmingham Birmingham, ... management of BCG adenitis are variable (i.e., the recommended management ranges from no treatment to treatments such as surgical drainage, administration of anti-TB d...

Ngày tải lên: 15/02/2014, 13:20

... International Work- shop on NLG, pages 98–107, Niagara-on-the- Lake, Ontario, Canada. Eleni Miltsakaki. 2002. Towards an aposyn- thesis of topic continuity and intrasenten- tial anaphora. Computational ... order fac ts for discourse planning in natural language gen- eration. In Proceedings of the 9th European Workshop on Natural Language Generation, Budapest, Hungary. Barbara J. Grosz, Ar...

Ngày tải lên: 17/03/2014, 06:20

... Koyasu S, Nishida E, Kadowaki T, Matsuzaki F, Iida K, Harada F, Kasuga M, Sakai H & Yahara I (1986) Two mammalian heat shock proteins, HSP90 and HSP100, are actin-binding proteins. Proc Natl ... Releasing an inhibitory subunit from a catalytic subunit can activate a kinase. By contrast, binding an activating regulatory coprotein to an inac- tive catalytic subunit can activate a kina...

Ngày tải lên: 30/03/2014, 03:20

... left-right areas) and was analyzed using the correct rate for six areas. 51 points were set as a cutoff value. 3-2. Special test with HMD (Figure 2) (a) Experimental apparatus The main experimental apparatus ... Japan, 3 AdIn Research, Inc., Sapporo, Hokkaido, Japan and 4 Research Center for Advanced Science and Technology, The University of Tokyo. Tokyo, Japan Email: Toshiaki Tanak...

Ngày tải lên: 19/06/2014, 10:20

... eight-hour paid working days per year at an average annual salar y of $34,426 (or a compensation rate of $19.56/hour) [19]. Statistical analyses were performed using the SAS statistical pack- age (SAS ... Dean 1* , Brian C Calimlim 1 , Patricia Sacco 2 , Daniel Aguilar 1 , Robert Maykut 3 , David Tinkelman 4 Abstract Background: Results of a national survey of asthmatic children...

Ngày tải lên: 20/06/2014, 16:20

... data, i.e., polar maps and 3D images were not taken from any of the quantitation software packages in order to avoid that a clinician’s familiarity with interpreting data from a particular pack- age ... MPS clinic, we evaluated the three software packages with their American normal databases and a gold standard based on a European team of physicians. We therefore feel that this ty...

Ngày tải lên: 20/06/2014, 23:20