Power optimization strategy for cascaded DC-DC converter architectures of photovoltaic modules
- 1 February 2009
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1-8
Abstract
This paper proposes a control strategy aiming at operating cascaded DC-DC converter architectures of photovoltaic (PV) modules at maximum power irrespective of the irradiance conditions, meanwhile meeting constraints of voltage-limitation type. The global optimum of cascaded connections of PV modules is generally equivalent with operating all the modules at maximum power point tracking (MPPT). The most important disturbance occurs when the irradiance levels of modules are sensibly different because of various reasons - in this case, voltage-limitation requirements may be broken. The proposed supervising strategy then attempts to establish the best suboptimal power regime. MATLABreg/Simulinkreg numerical simulation results are presented in the case of a monophased grid-connected PV system, where individual MPPTs have been implemented by extremum seeking control (ESC).Keywords
This publication has 17 references indexed in Scilit:
- Power Controller Design for Photovoltaic Generation System under Partially Shaded Insolation Conditions2007
- Analytic Solution to the Photovoltaic Maximum Power Point ProblemIEEE Transactions on Circuits and Systems I: Regular Papers, 2007
- An Intelligent Maximum Power Point Tracker Using Peak Current Control2006
- Optimization of Perturb and Observe Maximum Power Point Tracking MethodIEEE Transactions on Power Electronics, 2005
- Cascaded DC–DC Converter Connection of Photovoltaic ModulesIEEE Transactions on Power Electronics, 2004
- A Comparative Study of Maximum-Power-Point Trackers for Photovoltaic Panels Using Switching-Frequency Modulation SchemeIEEE Transactions on Industrial Electronics, 2004
- Real‐Time Optimization by Extremum‐Seeking Control2003
- Study on dynamic and static characteristics of photovoltaic cell2003
- A novel maximum power point tracking technique for solar panels using a SEPIC or Cuk converterIEEE Transactions on Power Electronics, 2003
- Wind Energy Handbook2001