Title :
Concerning “Maximum Power Point Tracking for Photovoltaic Optimization Using Ripple-Based Extremum Seeking Control”
Author :
Bazzi, Ali M. ; Krein, Philip T.
Author_Institution :
Grainger Center for Electr. Machinery & Elec Tromechanics, Univ. of Illinois, Urbana, IL, USA
fDate :
6/1/2011 12:00:00 AM
Abstract :
This paper highlights key contributions in extremum seeking (ES) control and ripple correlation control (RCC). Maximum power point tracking (MPPT) utilizing the 120-Hz inherent inverter ripple is shown to be developed in the early 1980s. Even though that specific MPPT development did not explicitly mention ES control, the analysis presented there shows otherwise. RCC stability and operating properties are also addressed where the fundamental difference between RCC and popular ES control methods is the perturbation source. Since RCC utilizes inherent switching ripple in power electronics, the high ripple frequency leads to fast RCC convergence.
Keywords :
invertors; maximum power point trackers; optimisation; photovoltaic power systems; power electronics; switching convertors; ES control method; MPPT development; RCC convergence; RCC stability; high ripple frequency; inherent inverter ripple; inherent switching ripple; maximum power point tracking; perturbation source; photovoltaic optimization; power electronics; ripple correlation control; ripple-based extremum seeking control; Correlation; Inverters; Optimization; Photovoltaic systems; Stability analysis; Switches; Extremum seeking control; optimization methods; photovoltaic systems; ripple correlation control; solar power generation;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2010.2093605
