Hybrid Systems: Wind Solar And Wind Hydro Hybrid Systems With Battery Storage
This paper deals with a novel isolated wind solar and wind hydro hybrid generation system. The wind solar
hybrid generation system employs squirrel cage induction generator (SCIG) driven by a variable speed wind turbine and a
high power photovoltaic system. The wind hydro hybrid generation system is designed with SCIG driven by a variable speed
wind turbine and another squirrel cage induction generator driven by a constant power hydro turbine. The system
utilizes two back to back connected voltage source converters (VSCs) with a battery energy storage system at their dc link.
The main objectives of the control algorithm for the VSCs are to achieve maximum power tracking (MPT) through rotor
speed control of a wind turbine driven SCIG under varying wind speeds and control of the magnitude and the frequency of
the load voltage. The above mentioned hybrid systems have the ability of bidirectional active and reactive power flow by
which it controls the magnitude and frequency of the load voltage. The two electromechanical systems are modeled and
simulated in MATLAB using Simulink and Sim Power System set tool boxes and different aspects of the proposed systems
are studied for various loads under varying wind speed conditions.