A distributed approach to MPPT for PV sub-module differential power processing
Authors:
Open Access
- 1 September 2013
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 23293721,p. 2778-2785
Abstract
This paper presents a distributed control algorithm for differential power processing in photovoltaic (PV) applications. This distributed algorithm performs true maximum power point tracking (MPPT) of series-connected PV sub-modules with only neighbor-to-neighbor communication and local measurements of each differential power converter voltages, obviating the need for local current measurements. Reduced number of perturbations at each step and potentially faster tracking can be achieved compared to previous solutions, while no extra hardware is required, all of which make this algorithm well-suited for long sub-module strings. The formulation of the control algorithm as well as three case studies are presented; both simulations and hardware experiments have confirmed the effectiveness of the proposed distributed algorithm.Keywords
This publication has 20 references indexed in Scilit:
- Submodule Integrated Distributed Maximum Power Point Tracking for Solar Photovoltaic ApplicationsIEEE Transactions on Power Electronics, 2013
- Architectures and Control of Submodule Integrated DC–DC Converters for Photovoltaic ApplicationsIEEE Transactions on Power Electronics, 2013
- Sub-module differential power processing for photovoltaic applications2013
- Resonant Switched-Capacitor Converters for Sub-module Distributed Photovoltaic Power ManagementIEEE Transactions on Power Electronics, 2012
- DC-DC converter for high granularity, sub-string MPPT in photovoltaic applications using a virtual-parallel connection2012
- Comparison of PV module performance before and after 11 and 20 years of field exposure2011
- Improved Energy Capture in Series String Photovoltaics via Smart Distributed Power Electronics2009
- Distributed maximum power point tracking of photovoltaic arrays: Novel approach and system analysisIEEE Transactions on Industrial Electronics, 2008
- Cell binning method analysis to minimize mismatch losses and performance variation in Si-based modules2003
- Quantization resolution and limit cycling in digitally controlled PWM convertersIEEE Transactions on Power Electronics, 2003