Maximum power point tracking of a DFIG wind turbine system

... diagram of the DFIG- based wind generation system (6) II MODEL OF A DFIG WIND ENERGY SYSTEM USING INSTANTANEOUS POWER COMPONENTS (7) A Definitions and Assumptions The schematic diagram of a DFIG wind ... AND CONCLUSION An alternative modeling and controller design approach based on the notion of the instantaneous power transfer matrix is described for...

Ngày tải lên: 27/06/2014, 16:04

... Hydro-Québec, Natural Resources Canada and the Natural Sciences and Engineering Research Council of Canada VII [1] REFERENCES C.L Kana; M Thamodharan and A Wolf; “System management of a wind- energy converter , ... 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...

Ngày tải lên: 03/01/2014, 19:15

... Training Information Monitoring System (TIMS©), which stores key participant and training information for all PEPFAR-funded training events This paper describes a project that uses training data ... participants so that follow-up data could be collected on an individual basis at each facility In some cases, training information was not yet entered into TIMS, and the pa...

Ngày tải lên: 18/06/2014, 17:20

... integrals,” Journal of Mathematical Analysis and Applications, vol 305, no 1, pp 227–239, 2005 18 A Kangtunyakarn and S Suantai, “Hybrid iterative scheme for generalized equilibrium problems and ... iterative method for finding common solutions of equilibrium and fixed point problems, ” Journal of Mathematical Analysis and Applications, vol 344, no 1, pp 3...

Ngày tải lên: 21/06/2014, 11:20

... Rabian Wangkeeree 17 12 K Aoyama, Y Kimura, W Takahashi, and M Toyoda, Approximation of common fixed points of a countable family of nonexpansive mappings in a Banach space,” Nonlinear Analysis: ... extragradient method for fixed point problems and variational inequality problems, ” Journal of Inequalities and Applications, vol 2007, Article ID 38752, 12 p...

Ngày tải lên: 21/06/2014, 23:20

Ngày tải lên: 05/08/2014, 10:20

... purpose The separate data area of these database systems means that they not need the segment cleaning mechanisms of the Sprite LFS to reclaim log space The space occupied by the log in a database system ... log as the most up to date ‘‘truth’’ about the state of the data on disk The main difference is that database systems not use the log as the final repositor...

Ngày tải lên: 12/09/2012, 15:05

... adopted to treat a typical village sewage There is the long rain season in local place always accompanied with strong storms at the beginning The stormwater runoff not only brings the large amounts ... or float method RESULTS AND DISCUSSION Removal performance of constructed wetland system for village sewage The COD Profiles of influent and effluent, as well as corre...

Ngày tải lên: 05/09/2013, 08:40

... Modeling of wind turbine The turbine is a wind energy conversion system It consists of an induction generator and other electrical control power requirements The wind turbine is effected by many parameters ... losses in wind turbine, ρ = air density in kg/m3, A = swept area in m2, Cp =power coefficient of wind turbine, V = wind speed in m/s Mechanical power of w...

Ngày tải lên: 05/09/2013, 16:10

... the operation for this inverter have proved its feasibility for dc-ac conversion in wind turbine applications ACKNOWLEDGMENT The authors wish to thank Natural Sciences and Engineering Research Council ... possibility for a low cost and high efficiency dc-ac converter appropriate for small wind turbine applications The inverter has a low component count with only power...

Ngày tải lên: 03/01/2014, 19:16

... complete home alarm system, but merely illustrates that the home automation system can interface with a larger existing alarm system The alarm interface unit provides the home alarm system with an arm/disarm ... very important, as it means that on a noisy powerline circuit, home automation signals can be sent reliably, as long as the rate of transmission is low enou...

Ngày tải lên: 19/01/2014, 20:20

... directly accessed on the screen But the translation is always done by the translator This data base is composed of dictionaries, "formats" and "procedures" of the analysis, transfer and synthesis phases ... phases (the conventional phases of a CAT system) For any given source lexical unit in this data base, VISULEX searches for all the associated information THAM cons...

Ngày tải lên: 17/03/2014, 19:21

... of ces Notification (Change) of place of residence At Regional Immigration Of ces Notification of (a change of) an item other than the place of residence Notification of a change of name, date of ... visiting Japan for a short period of time as a tourist * The Ministry of Justice ordinance specifies staff of the Japanese of ce of the Association of East Asian Re...

Ngày tải lên: 17/03/2014, 20:20

... chromatogram using the same criteria as for ADP and inosine Enzyme assays and identification of reaction products Enzyme assays The AMP–AMP phosphotransferase assay mixture contained 4.0 mm cold AMP ... phosphotransferase reaction (< 10% inhibition) AMP–AMP phosphotransferase reaction in human colorectal mucosa from cancer patients Table shows the activities of AdK, MK, ADA and AMP–AMP p...

Ngày tải lên: 23/03/2014, 06:20

... syntax, and parsing In Proceedings of the ~8th annual A CL, 1990 [2] R Helzerman and M.P Harper Parsec: An architecture for parallel parsing of constraint dependency grammars In Submitted to The ... feedback about impossible word candidates • We have been able to incorporate the durational information from Bear and Price quite easily into our framework An advantage of our ap...

Ngày tải lên: 23/03/2014, 20:20