Supervisor control for a stand-alone hybrid generation system using wind and photovoltaic energy

A comprehensive supervisor control for a hybrid system that comprises wind and photovoltaic generation subsystems, a battery bank, and an ac load is developed in this paper. The objectives of the supervisor control are, primarily, to satisfy the load power demand and, second, to maintain the state of charge of the battery bank to prevent blackout and to extend the life of the batteries. For these purposes, the supervisor controller determines online the operation mode of both generation subsystems, switching from power regulation to maximum power conversion. Decision criteria for the supervisor based on measurable system variables are presented. Finally, the performance of the supervisor controller is extensively assessed through computer simulation using a comprehensive nonlinear model of the plant.

[1]  C. P. Butterfield,et al.  Variable speed operation of generators with rotor-speed feedback in wind power applications , 1995 .

[2]  Kostas Kalaitzakis,et al.  Design of a maximum power tracking system for wind-energy-conversion applications , 2006, IEEE Transactions on Industrial Electronics.

[3]  Torbjörn Thiringer,et al.  Control by variable rotor speed of a fixed-pitch wind turbine operating in a wide speed range , 1993 .

[4]  Jongrong Lin,et al.  Implementation of a DSP-controlled photovoltaic system with peak power tracking , 1998, IEEE Trans. Ind. Electron..

[5]  Pekik Argo Dahono,et al.  An LC filter design method for single-phase PWM inverters , 1995, Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95.

[6]  Kjetil Uhlen,et al.  Robust control and analysis of a wind-diesel hybrid power plant , 1994 .

[7]  Bimal K. Bose,et al.  Fuzzy logic based intelligent control of a variable speed cage machine wind generation system , 1995 .

[8]  K. Agbossou,et al.  Output Power Maximization of a Permanent Magnet Synchronous Generator Based Stand-alone Wind Turbine , 2006, 2006 IEEE International Symposium on Industrial Electronics.

[9]  Tsutomu Hoshino,et al.  Maximum photovoltaic power tracking: an algorithm for rapidly changing atmospheric conditions , 1995 .

[10]  Paul Puleston,et al.  Power control of a photovoltaic array in a hybrid electric generation system using sliding mode techniques , 2001 .

[11]  T. Ekelund,et al.  Modeling and control of variable-speed wind-turbine drive-system dynamics , 1995 .

[12]  N.A. Ahmed,et al.  A Stand-Alone Hybrid Generation System Combining Solar Photovoltaic and Wind Turbine with Simple Maximum Power Point Tracking Control , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[13]  C. Chellamuthu,et al.  Intelligent controller for a stand-alone hybrid generation system , 2006, 2006 IEEE Power India Conference.

[14]  R. Ramakumar,et al.  Renewable technologies and distribution system , 1999, IEEE Power Engineering Review.

[15]  Saifur Rahman,et al.  Two-loop controller for maximizing performance of a grid-connected photovoltaic-fuel cell hybrid power plant , 1998 .

[16]  A. Braunstein.  On the Dynamic Optimal Coupling of a Solar Cell Array to a Load and Storage Batteries , 1981, IEEE Transactions on Power Apparatus and Systems.

[17]  F. Valenciaga,et al.  Passivity/sliding mode control of a stand-alone hybrid generation system , 2000 .

[18]  Paul Puleston,et al.  Sliding mode control of wind energy systems with DOIG-power efficiency and torsional dynamics optimization , 2000 .

[19]  Christopher Edwards,et al.  Sliding mode control : theory and applications , 1998 .

[20]  Paul Puleston,et al.  Variable structure system control design method based on a differential geometric approach: application to a wind energy conversion subsystem , 2004 .

[21]  R. Swisher,et al.  Strong winds on the horizon: wind power comes of age , 2001, Proc. IEEE.

[22]  D. B. Snyman,et al.  Combined low-cost, high-efficient inverter, peak power tracker and regulator for PV applications , 1989, 20th Annual IEEE Power Electronics Specialists Conference.

[23]  Paul Puleston,et al.  An adaptive feedback linearization strategy for variable speed wind energy conversion systems , 2000 .

[24]  Paul Puleston,et al.  Sliding mode control for efficiency optimization of wind energy systems with double output induction generator , 2000 .

[25]  C. F. Christiansen,et al.  Dynamical sliding mode power control of wind driven induction generators , 2000 .

[26]  Johan Enslin,et al.  Novel control strategies for variable-speed doubly fed wind power generation systems , 1995 .

[27]  Jay Jayadev.  Harnessing the wind , 1995 .

[28]  Ziyad M. Salameh,et al.  Methodology for optimally sizing the combination of a battery bank and PV array in a wind/PV hybrid system , 1996 .