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  4. On a hybrid MPPT control scheme to improve energy harvesting performance of traditional two-stage inverters used in photovoltaic systems
 
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On a hybrid MPPT control scheme to improve energy harvesting performance of traditional two-stage inverters used in photovoltaic systems

Journal
Renewable and Sustainable Energy Reviews
Journal Volume
69
Pages
1113-1128
Date Issued
2017
Author(s)
JOE-AIR JIANG  
Su, Yu-Li
Kuo, Kun-Chang
Wang, Chien-Hao
Liao, Min-Sheng
Wang, Jen-Cheng
CHEN-KANG HUANG  
CHENG-YING CHOU  
Lee, Chien-Hsing
Shieh, Jyh-Cherng
DOI
10.1016/j.rser.2016.09.112
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/438469
URL
https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84992036777&doi=10.1016%2fj.rser.2016.09.112&partnerID=40&md5=6bfd83cc62f065aa237ab63bee764e8b
Abstract
How to promote the energy harvesting performance of traditional two-stage inverters used in photovoltaic (PV) systems is a critical issue in the PV applications. This paper reviews the prevalent maximum power point tracking (MPPT) techniques and the difficulties and performances of using different stage inverter architectures. Based on the findings of the reviews, this study proposes a new hybrid MPPT algorithm to speedily track the MPP of the PV arrays. The algorithm can be used in a single-phase two-stage PV inverter, where the direct current (dc) sensors for tracking the MPP are not required. A current mode control with a phase-locked function is also proposed to combine with the hybrid MPPT method and implemented in the PV inverter. A grid-tied PV power conditioning (PVPC) system with a capacity rating of 4 kW was constructed as a test sample system. An extensive series of experiments were conducted to examine the basic performance for tracking the dynamic MPP of PV array provided by the proposed method. The test results show that the proposed hybrid MPPT method could produce more energy of 2.72% than the traditional P&O method. Moreover, the comparative experiments for several kinds of microprocessor- and digital signal processor (DSP)-based commercial inverters using different MPPT methods were also conducted. Experimental results demonstrate that the commercial inverter equipped with the proposed hybrid MPPT algorithm has a better energy harvesting performance comparing to other commercial inverters with various MPPT methods. The developed hybrid MPPT algorithm and control scheme are promisingly in energy harvest and are ready to use in the commercial PV systems. © 2016 Elsevier Ltd
SDGs

[SDGs]SDG7

Other Subjects
Digital signal processors; Energy harvesting; Maximum power point trackers; Photovoltaic cells; Signal processing; Comparative experiments; Current Mode Control; Digital Signal Processor (DSP); Inverter; Maximum Power Point Tracking; Perturbation and observations; Photovoltaic systems; Power conditioning; Electric inverters
Type
journal article

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