Autonomous Wind & Hydro Hybrid System using cage Generators and Battery Storage

  Sudhakar Durga,  Dr.N.Visali

This paper deals with the new autonomous wind hydro hybrid system using two squirrel cage generators. Onecage generator driven by a variable speed wind turbine and another cage generator driven by constant power hydro turbine feeding three phase four wire local loads. The proposed system utilizestwo back to back connected insulated-gate-bipolar–transistor- based voltage source converters controlled by pulse width modulation technique, and a battery energy storage system is kept in between them with the help of dc link. The main goal of the control algorithm is to achieve maximum power tracking through rotor speed control of wind turbine driven SCIG under varying wind speeds through machine side converter. And the proposed wind hydro hybrid system it has the capability of bi-directional active and reactive power flow, by which it controls the magnitude and the frequency of the load voltage through load side converter . The performance of the proposed hybrid system has been demonstrated under different electrical(consumerload variations) and mechanical(with wind speed variations) conditions. It also has the capability of harmonic elimination and reduction of peak oscillations of output voltage and current, neutral current compensation and load balancing.

Keywords- Battery energy storage system (BESS),small hydro, Wind Energy Conversion System (WECS), Squirrel Cage Induction Generator (SCIG).

Unique Identification Number - IJEDR1601050
Page Number(s) - 303-318
Pubished in - Volume 4 | Issue 1 | February 2016
DOI (Digital Object Identifier) -    --
Publisher - IJEDR (ISSN - 2321-9939)

  Sudhakar Durga,  Dr.N.Visali,   "Autonomous Wind & Hydro Hybrid System using cage Generators and Battery Storage", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 1, pp.303-318, February 2016, Available at :http://www.ijedr.org/papers/IJEDR1601050.pdf