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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">Physical Oceanography</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">Physical Oceanography</journal-title>
      </journal-title-group>
      <issn publication-format="print">1573-160X</issn>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">20240406</article-id>

      <article-categories>
        <subj-group subj-group-type="toc-heading" xml:lang="en">
          <subject>Automation of research of seas and oceans</subject>
        </subj-group>
        <subj-group subj-group-type="article-type">
          <subject>Research Article</subject>
        </subj-group>
      </article-categories>

      <title-group>
        <article-title xml:lang="en">An Advanced Electric Power Generator for Offshore Autonomous Stations</article-title>
      </title-group>

      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3562-6815</contrib-id>
          <name>
            <surname>Gryazin</surname>
            <given-names>D. G.</given-names>
          </name>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <email>volnagdg@yandex.ru</email>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4914-3603</contrib-id>
          <name>
            <surname>Gleb</surname>
            <given-names>K. A.</given-names>
          </name>
          <address>
            <country country="RU">Russian Federation</country>
          </address>
          <email/>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
      </contrib-group>

      <aff id="aff1">
        <institution>"Concern "SCRI "Elektropribor", JSC</institution>
        <addr-line>Saint Petersburg</addr-line>
        <country country="RU">Russia</country>
      </aff>

      <aff id="aff2">
        <institution>FSAEI HE "National Research University ITMO"</institution>
        <addr-line>Saint Petersburg</addr-line>
        <country country="RU">Russia</country>
      </aff>

      <aff id="aff3">
        <institution>PJSC "Gazprom"</institution>
        <addr-line>Saint Petersburg</addr-line>
        <country country="RU">Russia</country>
      </aff>

      <pub-date date-type="pub" iso-8601-date="2024-08-31" publication-format="electronic">
        <day>31</day>
        <month>08</month>
        <year>2024</year>
      </pub-date>
      <volume>31</volume>
      <issue>4</issue>
      <fpage>539</fpage>
      <lpage>561</lpage>

      <history>
        <date date-type="received" iso-8601-date="2024-04-22">
          <day>22</day>
          <month>04</month>
          <year>2024</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2024-05-06">
          <day>06</day>
          <month>05</month>
          <year>2024</year>
        </date>
        <date date-type="accepted" iso-8601-date="2024-05-16">
          <day>16</day>
          <month>05</month>
          <year>2024</year>
        </date>
      </history>

      <permissions>
        <copyright-statement xml:lang="en">Copyright ©; 2024, D. G. Gryazin, K. A. Gleb</copyright-statement>
        <copyright-year>2024</copyright-year>
        <copyright-holder xml:lang="en">D. G. Gryazin, K. A. Gleb</copyright-holder>
        <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/>
        <license>
          <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0/</ali:license_ref>
        </license>
      </permissions>

      <self-uri xlink:href="https://physical-oceanography.ru/repository/issues/2024/04/06/" xlink:title="Article page">https://physical-oceanography.ru/repository/issues/2024/04/06/</self-uri>

      <abstract xml:lang="en">
        <p><bold>Purpose.</bold> The research is purposed at substantiation of the design of floating marine stations with a wave energy generator. The proposed construction is of higher efficiency as compared to the known designs due to the application of roll oscillations and resonance operating mode.</p>
        <p><bold>Methods and Results.</bold> The resonance method of converting wave energy into electrical energy, as well as the design of an autonomous station based on the resonance conversion of the station hull roll oscillations into the electrical energy are described. The method implies adjusting the frequency of natural angular oscillations of the floating station hull to the significant wave frequency. It has been theoretically proved that the conversion of roll oscillations energy is more effective than the conversion of vertical oscillations. This is due to the fact that the amount of damping during vertical vibrations of a cylindrical body in water exceeds the amount of damping during angular oscillations of such a body. Besides, the proposed method is shown to be effective for applications in the development of measurement systems and storage devices. The design of a floating station is proposed for implementing the resonance method for converting wave energy. It is shown that adjusting the frequency of natural onboard oscillations of the station hull to the significant wave frequency can be done using the additional filled tanks. The algorithm for adjusting the hull roll oscillations to the resonance with significant wave frequency is described. The kinematic scheme for a mechanical converter of roll energy into electrical one is proposed.</p>
        <p><bold>Conclusions.</bold> The results of theoretical studies were validated experimentally using the device test model in a wave experimental basin. They show that the hydrodynamic efficiency of the proposed wave converter increases as the wave heights decrease.</p>
      </abstract>

      <kwd-group>
        <kwd>energy</kwd>
        <kwd>waves</kwd>
        <kwd>conversion</kwd>
        <kwd>mechanical</kwd>
        <kwd>electrical energy</kwd>
        <kwd>floating stations</kwd>
        <kwd>roll oscillations</kwd>
      </kwd-group>

      <funding-group>
        <funding-statement xml:lang="en">The authors are grateful to Sergei G. Zhivitsa, PhD, a specialist of FSUE Krylov State Research Center, for his valuable assistance in conducting the studies and preparing the materials for the paper.</funding-statement>
      </funding-group>
    </article-meta>
  </front>

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    <p>Article text not included.</p>
  </body>

  <back>
    <ref-list>
      <title>REFERENCES</title>
      <ref id="B1">
        <label>1.</label>
        <element-citation publication-type="book">
          <person-group person-group-type="editor">
            <name><surname>Pachauri</surname><given-names>R.K.</given-names></name>
            <name><surname>Pandey</surname><given-names>J.K.</given-names></name>
            <name><surname>Sharmu</surname><given-names>A.</given-names></name>
            <name><surname>Nautiyal</surname><given-names>O.P.</given-names></name>
            <name><surname>Ram</surname><given-names>M.</given-names></name>
          </person-group>
          <source>Applied Soft Computing and Embedded System Applications in Solar Energy</source>
          <publisher-loc>Boca Raton, USA</publisher-loc>
          <publisher-name>CRC Press</publisher-name>
          <year>2021</year>
          <size units="pages">254</size>
        </element-citation>
      </ref>
      <ref id="B2">
        <label>2.</label>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name><surname>Mikhaylov</surname><given-names>D.N.</given-names></name>
            <name><surname>Senin</surname><given-names>R.N.</given-names></name>
            <name><surname>Dubrovin</surname><given-names>F.S.</given-names></name>
            <name><surname>Boreyko</surname><given-names>A.A.</given-names></name>
            <name><surname>Strykul</surname><given-names>R.I.</given-names></name>
            <name><surname>Khramov</surname><given-names>O.A.</given-names></name>
          </person-group>
          <article-title>Autonomous Underwater Vehicle Application for Hydrographic Research in the Sea of Okhotsk</article-title>
          <source>Underwater Investigations and Robotics</source>
          <year>2017</year>
          <volume>2</volume>
          <issue>24</issue>
          <fpage>4</fpage>
          <lpage>13</lpage>
          <comment>(in Russian)</comment>
        </element-citation>
      </ref>
      <ref id="B3">
        <label>3.</label>
        <element-citation publication-type="paper-conference">
          <person-group person-group-type="author">
            <name><surname>Storey</surname><given-names>J.P.</given-names></name>
            <name><surname>Hammond</surname><given-names>J.L.</given-names></name>
            <name><surname>G-H-Cater</surname><given-names>J.E.</given-names></name>
            <name><surname>Metcalfe</surname><given-names>B.W.</given-names></name>
            <name><surname>Wilson</surname><given-names>P.R.</given-names></name>
          </person-group>
          <article-title>Modelling Dynamic Photovoltaic Arrays for Marine Applications</article-title>
          <source>2016 IEEE 17th Workshop on Control and Modeling for Power Electronics (COMPEL)</source>
          <publisher-loc>Trondheim, Norway</publisher-loc>
          <year>2016</year>
          <fpage>1</fpage>
          <lpage>8</lpage>
          <pub-id pub-id-type="doi">10.1109/COMPEL.2016.7556720</pub-id>
        </element-citation>
      </ref>
      <ref id="B4">
        <label>4.</label>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name><surname>Ruellan</surname><given-names>M.</given-names></name>
            <name><surname>BenAhmed</surname><given-names>H.</given-names></name>
            <name><surname>Multon</surname><given-names>B.</given-names></name>
            <name><surname>Josset</surname><given-names>C.</given-names></name>
            <name><surname>Babarit</surname><given-names>A.</given-names></name>
            <name><surname>Clement</surname><given-names>A.</given-names></name>
          </person-group>
          <article-title>Design Methodology for a SEAREV Wave Energy Converter</article-title>
          <source>IEEE Transactions on Energy Conversion</source>
          <year>2010</year>
          <volume>25</volume>
          <issue>3</issue>
          <fpage>760</fpage>
          <lpage>767</lpage>
          <pub-id pub-id-type="doi">10.1109/TEC.2010.2046808</pub-id>
        </element-citation>
      </ref>
      <ref id="B5">
        <label>5.</label>
        <element-citation publication-type="paper-conference">
          <person-group person-group-type="author">
            <name><surname>Rhinefrank</surname><given-names>K.</given-names></name>
            <name><surname>Schacher</surname><given-names>A.</given-names></name>
            <name><surname>Prudell</surname><given-names>J.</given-names></name>
            <name><surname>Hammagren</surname><given-names>E.</given-names></name>
            <name><surname>von Jouanne</surname><given-names>A.</given-names></name>
            <name><surname>Brekken</surname><given-names>T.</given-names></name>
          </person-group>
          <article-title>Scaled Development of a Novel Wave Energy Converter through Wave Tank to Utility-Scale Laboratory Testing</article-title>
          <source>2015 IEEE Power &amp; Energy Society General Meeting</source>
          <publisher-loc>Denver, CO, USA</publisher-loc>
          <year>2015</year>
          <fpage>1</fpage>
          <lpage>5</lpage>
          <pub-id pub-id-type="doi">10.1109/PESGM.2015.7286008</pub-id>
        </element-citation>
      </ref>
      <ref id="B6">
        <label>6.</label>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name><surname>Pozzi</surname><given-names>N.</given-names></name>
            <name><surname>Bracco</surname><given-names>G.</given-names></name>
            <name><surname>Passione</surname><given-names>B.</given-names></name>
            <name><surname>Sirigu</surname><given-names>S.</given-names></name>
            <name><surname>Vissio</surname><given-names>G.</given-names></name>
            <name><surname>Mattiazzo</surname><given-names>G.</given-names></name>
            <name><surname>Sannino</surname><given-names>G.</given-names></name>
          </person-group>
          <article-title>Wave Tank Testing of a Pendulum Wave Energy Converter 1:12 Scale Model</article-title>
          <source>International Journal of Applied Mechanics</source>
          <year>2017</year>
          <volume>9</volume>
          <issue>2</issue>
          <fpage>1750024</fpage>
          <pub-id pub-id-type="doi">10.1142/S1758825117500247</pub-id>
        </element-citation>
      </ref>
      <ref id="B7">
        <label>7.</label>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name><surname>Clément</surname><given-names>A.H.</given-names></name>
            <name><surname>Babarit</surname><given-names>A.</given-names></name>
          </person-group>
          <article-title>Discrete Control of Resonant Wave Energy Devices</article-title>
          <source>Philosophical Transactions of the Royal Society A. Mathematical, Physical, and Engineering Sciences</source>
          <year>2012</year>
          <volume>370</volume>
          <issue>1959</issue>
          <fpage>288</fpage>
          <lpage>314</lpage>
          <pub-id pub-id-type="doi">10.1098/rsta.2011.0132</pub-id>
        </element-citation>
      </ref>
      <ref id="B8">
        <label>8.</label>
        <element-citation publication-type="paper-conference">
          <person-group person-group-type="author">
            <name><surname>Saeidtehrani</surname><given-names>S.</given-names></name>
            <name><surname>Lomónaco</surname><given-names>P.</given-names></name>
            <name><surname>Hagmüller</surname><given-names>A.</given-names></name>
            <name><surname>Levites-Ginsburg</surname><given-names>M.</given-names></name>
          </person-group>
          <article-title>Application of a Simulation Model for a Heave Type Wave Energy Converter</article-title>
          <source>Proceedings of the 12th European Wave and Tidal Energy Conference, 27th Aug – 1st Sept 2017</source>
          <publisher-loc>Cork, Ireland</publisher-loc>
          <year>2017</year>
          <volume>948</volume>
          <fpage>1</fpage>
          <lpage>8</lpage>
        </element-citation>
      </ref>
      <ref id="B9">
        <label>9.</label>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name><surname>Bal</surname><given-names>V.B.</given-names></name>
            <name><surname>Gecha</surname><given-names>V.Ya.</given-names></name>
            <name><surname>Goncharov</surname><given-names>V.I.</given-names></name>
            <name><surname>Ezhov</surname><given-names>E.V.</given-names></name>
            <name><surname>Chirkin</surname><given-names>V.G.</given-names></name>
            <name><surname>Shirinsky</surname><given-names>S.V.</given-names></name>
            <name><surname>Petrichenko</surname><given-names>D.A.</given-names></name>
          </person-group>
          <article-title>Linear Electrical Reciprocating Machines – Types and Design of Electrical Machines</article-title>
          <source>Electromechanical Matters. VNIIEM Studies</source>
          <year>2015</year>
          <volume>148</volume>
          <issue>5</issue>
          <fpage>3</fpage>
          <lpage>13</lpage>
          <comment>(in Russian)</comment>
        </element-citation>
      </ref>
      <ref id="B10">
        <label>10.</label>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name><surname>Salter</surname><given-names>S.</given-names></name>
          </person-group>
          <article-title>Wave Energy: Nostalgic Ramblings, Future Hopes and Heretical Suggestions</article-title>
          <source>Journal of Ocean Engineering and Marine Energy</source>
          <year>2016</year>
          <volume>2</volume>
          <issue>4</issue>
          <fpage>399</fpage>
          <lpage>428</lpage>
          <pub-id pub-id-type="doi">10.1007/s40722-016-0057-3</pub-id>
        </element-citation>
      </ref>
      <ref id="B11">
        <label>11.</label>
        <element-citation publication-type="paper-conference">
          <person-group person-group-type="author">
            <name><surname>Pastor</surname><given-names>J.</given-names></name>
            <name><surname>Dou</surname><given-names>Y.-Q.</given-names></name>
            <name><surname>Liu</surname><given-names>Y.</given-names></name>
          </person-group>
          <article-title>Wave Energy Resource Analysis for Use in Wave Energy Conversion</article-title>
          <source>Proceedings of the 36th Industrial Energy Technology Conference (IETC 2014)</source>
          <publisher-loc>New Orleans, USA</publisher-loc>
          <year>2014</year>
        </element-citation>
      </ref>
    </ref-list>
  </back>
</article>
