scholarly journals Development of a Fractional Order Chaos Synchronization Dynamic Error Detector for Maximum Power Point Tracking of Photovoltaic Power Systems

2015 ◽  
Vol 5 (4) ◽  
pp. 1117-1133 ◽  
Author(s):  
Kuo-Nan Yu ◽  
Her-Terng Yau ◽  
Chi-Kang Liao
Keyword(s):  
Power Systems ◽  
Fractional Order ◽  
Chaos Synchronization ◽  
Dynamic Error ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Photovoltaic Power ◽  
Error Detector ◽  
Power Point

scholarly journals A New Fractional-Order Based Intelligent Maximum Power Point Tracking Control Algorithm for Photovoltaic Power Systems

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Kuo-Nan Yu ◽  
Chih-Kang Liao ◽  
Her-Terng Yau
Keyword(s):  
Power Systems ◽  
Fractional Order ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Photovoltaic Power ◽  
Incremental Conductance ◽  
Conductance Method ◽  
Power Point

This paper proposes a new type of variable fractional-order incremental conductance algorithm (VFOINC), combined with extenics variable step size (EVSS) control into the maximum power point tracking (MPPT) design for photovoltaic power systems. At the beginning of maximum power tracking, the fractional-order numberαis selected as 1; the good transient tracking characteristic of traditional incremental conductance method is used. When the maximum power point is approached, the fractional-order numberαis selected as variable fractional order; the curve profile ofαin fractional order is used to approximate, so that the system has good tracking effect in transient and steady states. The experimental and simulation results show that, compared with traditional incremental conductance method (INC) and fractional-order incremental conductance method (FOINC), this method has better MPPT effect.

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