Journal
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
Volume 56, Issue -, Pages 286-297Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijepes.2013.11.020
Keywords
Module-integrated converter; Series-connected; Maximum power point tracking; Zigbee communication
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Funding
- Human Resources Development program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) [20124030200070]
- Korea government Ministry of Knowledge Economy
- Korea Evaluation Institute of Industrial Technology (KEIT) [20124030200070] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this paper, a simple maximum power point tracking method for series-connected DC-DC converter module of photovoltaic power conditioning systems is proposed. This approach enables maximum power point tracking control with the converter's output voltage information instead of calculating solar array power, which significantly simplifies the sensor network by removing any current sensor. Furthermore, there is no multiplication process of power calculation for perturbation-and-observation algorithm to track the maximum power point because the power calculation is replaced by simple output voltage sensing. This simple tracker realization can reduce the cost and size, and can be utilized with a low performance/low cost controller. For the implementation of the proposed control strategy, Zigbee (Xbee-pro) wireless communications and DSP's Series Communications Interface are utilized. Then, a couple of series-connected hardware prototype of photovoltaic modules was built and tested for the performance evaluation. (C) 2013 Elsevier Ltd. All rights reserved.
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