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Review of Industrial Engineering Letters

March 2015, Volume 2, 1, pp 1-9

Simulations of Wind Energy Conversions Systems with Asymmetrically Rnsic

Irinel Valentin Pletea

,

Dimitrie Alexa

,

Dan Dorin Cepareanu

Irinel Valentin Pletea 1 ,

Dimitrie Alexa 1 Dan Dorin Cepareanu 3

  1. Technical University “Gheorghe Asachi” of Iasi, Faculty of Electronics, Telecommunications and Informations Technology, Blv, Romania, SC COMFRAC R&D PROJECT EXPERT SRL, Bucuresti, Sector 3, Bulevardul Decebal, Romania 1

  2. Technical University “Gheorghe Asachi” of Iasi, Faculty of Electronics, Telecommunications and Informations Technology, Blv. Romania 3

Pages: 1-9

DOI: 10.18488/journal.71/2015.2.1/71.1.1.9

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Abstract:

The electric energy losses as well as electromagnetic pollution of the environment by the modern electric or electronic apparatus running in a commutating regime may be reduced to minimum with the help of power electronics, field which will be well developed in the next century in order to modernize industry, transport, telecommunications, etc. The paper present a wind generator system based on a new converter configuration with a asymmetrical rectifier with near sinusoidal input currents (Asim-RNSIC), we propose a method to reduce by 15%-25% of the reactive elements (capacitors and inductances) of a asymmetrical rectifiers with near sinusoidal input currents (Asim-RNSIC). This method consists of the parallel connection of two RNSIC converters of the same type, dimensioned for half of the converted nominal power and whose entry currents are phase-shifted with an angle of 30°-40° by the correct choosing of the inductances on the AC part. Thus, it results a sufficient compensation of the type 5 current harmonics generated in the power grid when the capacitors and inductances of the two rectifiers are lowered accordingly. The converter, named Asim-RNSIC, is economically and technically more competitive compared to the three-phase six-pulse full-bridge diode rectifier with passive filters. 
Contribution/ Originality
The paper’s primary contribution is finding that reduced to minimum electromagnetic pollution of the environment with the help of power electronics by the modern electric or electronic converters running in a commutating regime.

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Reference:

  1. N. Mohan, T. Undeanland, and W. Robbins, Power electronics – converters, applications and design: John Wiley & Sons Inc, 1995.
  2. J. C. Das, "Passive filters - potentialities and limitations," IEEE Trans. On  Inustr. Applications, vol. 40, pp. 232-241, 2004.
  3. D. Alexa, "Three-phase rectifier with almost sinusoidal input current," Electronics Letters, vol. 37, pp. 1148 – 1150, 2001.
  4. D. Alexa, A. Sirbu, and A. Lazar, "Three – phase rectifier with near sinusoidal nput currents and capacitors connected on the AC side," IEEE Trans. Ind. Electron., vol. 53, pp. 1612 – 1620, 2006.
  5. D. Alexa, A. Sirbu, I. V. Pletea, and T. C. Goras, "Hybrid rectifier with near-sinusoidal Input currents," IEEE Trans. Ind. Electron., vol. 59, pp. 2947-2958, 2012.
  6. D. Alexa, T. C. Goras, A. Sirbu, I. V. Pletea, C. Filote, and F. Ionescu, "Analysis of the two-quadrant converter with rectifier with near sinusoidal input currents," IET Power Electronics, vol. 1, pp. 224-234, 2008.
  7. J. M. Miller, Ultracapacitor applications. London: The Institution of Engineering and Technology, 2011.
  8. N. Vasquez, H. Rodriguez, C. Hernandez, E. Rodriguez, and I. Arann, "Three-phase rectifier with active current injection and high efficiency," IEEE Trans. Ind. Electron., vol. 56, pp. 110-119, 2009.
  9. F. K. A. Lima, A. Luna, P. Rodriguez, E. H. Watanabe, and F. Blaabjerg, "Rotor voltage dynamics in the doubly fed induction generator during grid faults," IEEE Trans. Pow. Electron., vol. 25, pp. 118-130, 2010.
  10. D. Alexa, I. V. Pletea, A. Sîrbu, and A. Lazar, "Wind energy conversion into electricity by means of the rectifier with near sinusoidal input current-1converter," IET Renewable Power Generation, vol. 7, pp. 475–483, 2013.
  11. D. Alexa, A. Sirbu, I. V. Pletea, C. Filote, and R. Chiper, "Variants of rectifier with near sinusoidal input currents—a comparative analysis with the conventional diode rectifier," IET Power Electron., vol. 4, pp. 632–641, 2011.

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