Journal article Open Access

Embedding Power Line Communication in Photovoltaic Optimizer by Modulating Data in Power Control Loop

Zhu, Yue; Wu, Jiande; Wang, Ruichi; Lin, Zhengyu; He, Xiangning


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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Zhu, Yue</dc:creator>
  <dc:creator>Wu, Jiande</dc:creator>
  <dc:creator>Wang, Ruichi</dc:creator>
  <dc:creator>Lin, Zhengyu</dc:creator>
  <dc:creator>He, Xiangning</dc:creator>
  <dc:date>2018-05-24</dc:date>
  <dc:description>In Photovoltaic (PV) system, dc-dc power op-timizer (DCPO) is an option to maximize output power. At the same time, data links among DCPOs are often required for system monitoring and controlling. This paper pro-poses a novel power line communication (PLC) method for the DCPOs, in which the data of a DCPO is modulated into the control loop of power converter, and then transmitted through the series-connected dc power line to other DCPOs. In the process of communication, differential phase shift keying (DPSK) modulation and discrete Fourier transformation (DFT) demodulation are employed. To ana-lyze the quality of communication, the communication model of the system is built, based on small-signal model. Furthermore, the noises of the system, including switch-ing, maximum power point tracking (MPPT) and additive white Gaussian noise (AWGN), are discussed and meas-ured to evaluate the signal-to-noise ratio (SNR). At last, an experimental system including 6 DCPOs is established and tested, which verifies the feasibility and effectiveness of the proposed method.</dc:description>
  <dc:identifier>https://zenodo.org/record/1287279</dc:identifier>
  <dc:identifier>10.5281/zenodo.1287279</dc:identifier>
  <dc:identifier>oai:zenodo.org:1287279</dc:identifier>
  <dc:relation>info:eu-repo/grantAgreement/EC/H2020/734796/</dc:relation>
  <dc:relation>doi:10.5281/zenodo.1287278</dc:relation>
  <dc:relation>url:https://zenodo.org/communities/rdc2mt</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
  <dc:source>IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS</dc:source>
  <dc:subject>Photovoltaic (PV) system, Power line communication, DC power optimizer</dc:subject>
  <dc:title>Embedding Power Line Communication in Photovoltaic Optimizer by Modulating Data in Power Control Loop</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>
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