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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">research-focus</journal-id>
      <journal-title-group>
        <journal-title>Research Focus International Scientific Journal</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Research Focus</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="epub" publication-format="electronic">2181-3833</issn>
      <publisher>
        <publisher-name>Ilm-fan va innovatsiyalar akademiyasi</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.66073/researchfocus.v4i10.1794</article-id>
      <article-id pub-id-type="other" assigning-authority="relibrary.uz">REL-A-013111</article-id>
      <article-categories>
        <subj-group subj-group-type="oak">
          <subject>05.00.00</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">LOAD FORECASTING AND EQUIPMENT OPTIMIZATION IN RENEWABLE ENERGY INTEGRATION</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>ПРОГНОЗИРОВАНИЕ НАГРУЗКИ И ОПТИМИЗАЦИЯ ОБОРУДОВАНИЯ ПРИ ИНТЕГРАЦИИ ВОЗОБНОВЛЯЕМЫХ ИСТОЧНИКОВ ЭНЕРГИИ</trans-title>
        </trans-title-group>
        <trans-title-group xml:lang="uz">
          <trans-title>QAYTA TIKLANUVCHI ENERGIYA ULANISHIDA YUKLAMANI BASHORATLASH VA QURILMALARNI OPTIMALLASHTIRISH</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group content-type="author">
        <contrib contrib-type="author">
          <string-name>Turaxanov Sherzod Shadiyarovich</string-name>
          <aff>“RIETER TEXTILSYSTEMEN” LLC</aff>
        </contrib>
      </contrib-group>
      <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-11-05">
        <day>05</day>
        <month>11</month>
        <year>2025</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2025</year>
      </pub-date>
      <volume>4</volume>
      <issue>10</issue>
      <fpage>26</fpage>
      <lpage>32</lpage>
      <permissions>
        <license xlink:href="https://creativecommons.org/licenses/by/4.0">
          <ali:license_ref>https://creativecommons.org/licenses/by/4.0</ali:license_ref>
          <license-p>This work is licensed under a Creative Commons Attribution 4.0 International License.</license-p>
        </license>
      </permissions>
      <self-uri xlink:href="https://relibrary.uz/REL-A-013111/"/>
      <abstract xml:lang="en">
        <p>This paper presents a two-layer integrated framework for load forecasting and equipment optimization under renewable energy integration. The first layer delivers day-ahead and near real-time forecasts using a hybrid LSTM–Transformer model trained on SCADA/AMI data enriched with weather and calendar features. The second layer performs multi-objective MILP optimization combined with Model Predictive Control (MPC) to coordinate capacitor banks, voltage regulators/OLTC, inverter PQ dispatch, demand response (DR) signals, and energy storage, while explicitly accounting for forecast uncertainty. Simulation results indicate reduced technical losses and voltage violations, lower renewable curtailment, transformer loading relief, and improved operational costs. By unifying the forecast–control loop within a smart-grid context, the proposed approach enhances network resiliency and overall energy efficiency.</p>
      </abstract>
      <trans-abstract xml:lang="ru">
        <p>Статья предлагает двухуровневый интегрированный подход к прогнозированию нагрузки и оптимизации оборудования в условиях интеграции ВИЭ. На первом уровне формируется суточный и ближний оперативный прогноз с использованием гибридной модели LSTM–Transformer на данных SCADA/AMI с учётом погодных и календарных факторов. На втором уровне выполняется многоцелевой MILP-оптимизатор и модельно-предиктивное управление (MPC), координирующие режимы конденсаторных установок, регуляторов напряжения/РПН, инверторов (PQ-диспетчирование), мероприятий управления спросом (Demand Response) и систем накопления энергии с учётом неопределённости прогноза. Моделирование демонстрирует снижение технических потерь и нарушений ограничений по напряжению, сокращение ограничений выработки ВИЭ (curtailment), разгрузку трансформаторов и оптимизацию эксплуатационных затрат. Предложенное решение объединяет связку «прогноз–управление» в среде smart-grid, повышая устойчивость сети и энергоэффективность.</p>
      </trans-abstract>
      <trans-abstract xml:lang="uz">
        <p>Maqolada qayta tiklanuvchi energiya manbalari (QTM) ulanishi sharoitida yuklamani bashoratlash va elektr texnikasi qurilmalarini optimallashtirish uchun ikki pog‘onali integratsiyalashgan yondashuv taklif etiladi. Birinchi pog‘onada SCADA/AMI ma‘lumotlari, ob-havo hamda kalendar ko‘rsatkichlari asosida gibrid LSTM–Transformer modeli yordamida kun- / oldi va yaqin real vaqt yuklama prognozi olinadi. Ikkinchi pog‘onada prognoz noaniqligini inobatga oluvchi MILP asosidagi ko‘p-maqsadli optimallashtirish va modelga asoslangan prediktiv boshqaruv (MPC) orqali kompensatorlar, kuchlanish regulyatorlari/OLTC, invertorlar (PQ-dispatch), talabga javob (DR) signallari hamda saqlash tizimlari ish rejimlari muvofiqlashtiriladi. Simulyatsiya natijalari tarmoqdagi texnik yo‘qotishlarni va kuchlanish cheklovi buzilishlarini kamaytirish, RES curtailmentini qisqartirish, transformator yuklanishini pasaytirish hamda ekspluatatsion xarajatlarni optimallashtirish imkonini ko‘rsatadi. Taklif etilgan usul aqlli tarmoq (smart-grid) muhitida bashorat–boshqaruv bog‘liqligini yagona yechimga birlashtirib, tarmoq barqarorligi va energiya samaradorligini oshiradi.</p>
      </trans-abstract>
      <kwd-group xml:lang="en">
        <kwd>smart grid</kwd>
        <kwd>load forecasting</kwd>
        <kwd>LSTM</kwd>
        <kwd>Transformer</kwd>
        <kwd>MILP</kwd>
        <kwd>MPC</kwd>
        <kwd>demand response (DR)</kwd>
        <kwd>reactive power control</kwd>
        <kwd>inverter dispatch</kwd>
        <kwd>OLTC</kwd>
        <kwd>SCADA/AMI</kwd>
        <kwd>renewable integration</kwd>
        <kwd>loss reduction</kwd>
        <kwd>voltage stability</kwd>
      </kwd-group>
      <kwd-group xml:lang="ru">
        <kwd>smart-grid</kwd>
        <kwd>прогнозирование нагрузки</kwd>
        <kwd>LSTM</kwd>
        <kwd>Transformer</kwd>
        <kwd>MILP</kwd>
        <kwd>MPC</kwd>
        <kwd>управление спросом (DR)</kwd>
        <kwd>управление реактивной мощностью</kwd>
        <kwd>диспетчирование инверторов</kwd>
        <kwd>РПН</kwd>
        <kwd>SCADA/AMI</kwd>
        <kwd>интеграция ВИЭ</kwd>
        <kwd>снижение потерь</kwd>
        <kwd>стабильность напряжения</kwd>
      </kwd-group>
      <kwd-group xml:lang="uz">
        <kwd>smart-grid</kwd>
        <kwd>yuklama bashorati</kwd>
        <kwd>LSTM</kwd>
        <kwd>Transformer</kwd>
        <kwd>MILP</kwd>
        <kwd>MPC</kwd>
        <kwd>talabga javob (DR)</kwd>
        <kwd>reaktiv quvvat boshqaruvi</kwd>
        <kwd>invertor dispatch</kwd>
        <kwd>OLTC</kwd>
        <kwd>SCADA/AMI</kwd>
        <kwd>QTM integratsiyasi</kwd>
        <kwd>yo‘qotishlarni kamaytirish</kwd>
        <kwd>kuchlanish barqarorligi</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <back>
    <ref-list>
      <ref id="r1">
        <label>1</label>
        <mixed-citation>T. Hong and S. Fan, “Probabilistic electric load forecasting: A tutorial review,” International Journal of Forecasting, vol. 32, no. 3, pp. 914–938, 2016. DOI:</mixed-citation>
      </ref>
      <ref id="r2">
        <label>2</label>
        <mixed-citation>1016/j.ijforecast.2015.11.011. IDEAS/RePEc</mixed-citation>
      </ref>
      <ref id="r3">
        <label>3</label>
        <mixed-citation>S. Hochreiter and J. Schmidhuber, “Long Short-Term Memory,” Neural Computation, vol. 9, no. 8, pp. 1735–1780, 1997. DOI: <pub-id pub-id-type="doi">10.1162/neco.1997.9.8.1735</pub-id>. MIT Press Direct</mixed-citation>
      </ref>
      <ref id="r4">
        <label>4</label>
        <mixed-citation>A. Vaswani et al., “Attention Is All You Need,” in Advances in Neural Information Processing Systems (NeurIPS), 2017. (arXiv:1706.03762). arXiv+1</mixed-citation>
      </ref>
      <ref id="r5">
        <label>5</label>
        <mixed-citation>B. Lim, S. O. Arik, N. Loeff, and T. Pfister, “Temporal Fusion Transformers for interpretable multi-horizon time-series forecasting,” International Journal of Forecasting, vol. 37, no. 4, pp. 1748–1764, 2021. (See preprint arXiv:1912.09363). arXiv</mixed-citation>
      </ref>
      <ref id="r6">
        <label>6</label>
        <mixed-citation>M. E. Baran and F. F. Wu, “Optimal capacitor placement on radial distribution systems— Part I,” IEEE Transactions on Power Delivery, vol. 4, no. 1, pp. 725–734, 1989. DOI:</mixed-citation>
      </ref>
      <ref id="r7">
        <label>7</label>
        <mixed-citation>1109/61.19266. chrisyeh96.github.io</mixed-citation>
      </ref>
      <ref id="r8">
        <label>8</label>
        <mixed-citation>M. E. Baran and F. F. Wu, “Network reconfiguration in distribution systems for loss reduction,” IEEE Transactions on Power Delivery, vol. 4, no. 2, pp. 1401–1407, 1989. DOI: <pub-id pub-id-type="doi">10.1109/61.25627</pub-id>. ecal.studentorg.berkeley.edu</mixed-citation>
      </ref>
      <ref id="r9">
        <label>9</label>
        <mixed-citation>H. Farivar and S. H. Low, “Branch Flow Model: Relaxations and Convexification—Part I,” IEEE Transactions on Power Systems, vol. 28, no. 3, pp. 2554–2564, 2013. DOI:</mixed-citation>
      </ref>
      <ref id="r10">
        <label>10</label>
        <mixed-citation>1109/TPWRS.2013.2255317. SCIRP</mixed-citation>
      </ref>
      <ref id="r11">
        <label>11</label>
        <mixed-citation>S. H. Low, “Convex Relaxation of Optimal Power Flow—Part I: Formulations and Equivalence,” IEEE Transactions on Control of Network Systems, vol. 1, no. 1, pp. 15–27, 2014. DOI: <pub-id pub-id-type="doi">10.1109/TCNS.2014.2309732</pub-id>. SCIRP</mixed-citation>
      </ref>
      <ref id="r12">
        <label>12</label>
        <mixed-citation>A. V. Turitsyn, P. Sulyok, S. Backhaus, and M. Chertkov, “Options for control of reactive power by distributed photovoltaic (PV) inverters,” Proceedings of the IEEE, vol. 99, no. 6, pp. 1063–1073, 2011. Massachusetts Institute of Technology</mixed-citation>
      </ref>
      <ref id="r13">
        <label>13</label>
        <mixed-citation>S. Kundu, S. Backhaus, and I. A. Hiskens, “Distributed control of reactive power from photovoltaic inverters,” IEEE, 2013. (4-p. paper; LinDistFlow formulation used). web.eecs.umich.edu</mixed-citation>
      </ref>
      <ref id="r14">
        <label>14</label>
        <mixed-citation>S. Bolognani and S. Zampieri, “On the existence and linear approximation of the power flow solution in power distribution networks,” IEEE Transactions on Power Systems, 2016 (preprint: arXiv:1403.5031). arXiv</mixed-citation>
      </ref>
      <ref id="r15">
        <label>15</label>
        <mixed-citation>IEEE Std 1547-2018: Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces, 2018 (and Amendments). IEEE Standards Association+1</mixed-citation>
      </ref>
      <ref id="r16">
        <label>16</label>
        <mixed-citation>F. Ding et al., “Photovoltaic impact assessment of smart inverter Volt-VAR control on distribution system conservation voltage reduction and power quality,” NREL Technical Report NREL/TP-5D00-67296, 2016. NREL</mixed-citation>
      </ref>
      <ref id="r17">
        <label>17</label>
        <mixed-citation>J. B. Rawlings, D. Q. Mayne, and M. Diehl, Model Predictive Control: Theory, Computation, and Design (2nd ed.), Nob Hill Publishing, 2017. Google Books</mixed-citation>
      </ref>
      <ref id="r18">
        <label>18</label>
        <mixed-citation>H. Heitsch and W. Römisch, “Scenario reduction algorithms in stochastic programming,” Computational Optimization and Applications, vol. 24, pp. 187–206, 2003. DOI:</mixed-citation>
      </ref>
      <ref id="r19">
        <label>19</label>
        <mixed-citation>1023/A:1021805924152. SpringerLink</mixed-citation>
      </ref>
      <ref id="r20">
        <label>20</label>
        <mixed-citation>R. Koenker and G. Bassett Jr., “Regression quantiles,” Econometrica, vol. 46, no. 1, pp. 33–50, 1978. econ.uiuc.edu</mixed-citation>
      </ref>
      <ref id="r21">
        <label>21</label>
        <mixed-citation>T. Gneiting and A. E. Raftery, “Strictly proper scoring rules, prediction, and estimation,” Journal of the American Statistical Association, vol. 102, no. 477, pp. 359–378, 2007. sites.stat.washington.edu</mixed-citation>
      </ref>
      <ref id="r22">
        <label>22</label>
        <mixed-citation>A. Borghetti, S. Grillo, M. Paolone, F. Napolitano, C. A. Nucci, and M. Sforna, “Volt/VAR optimization of unbalanced distribution feeders via mixed-integer linear programming,” International Journal of Electrical Power &amp; Energy Systems, vol. 64, pp. 78–85, 2015. ScienceDirect</mixed-citation>
      </ref>
      <ref id="r23">
        <label>23</label>
        <mixed-citation>L. Bird, J. Cochran, and X. Wang, Wind and Solar Energy Curtailment: Experience and Practices in the United States, NREL/TP-6A20-60983, 2014. NREL</mixed-citation>
      </ref>
      <ref id="r24">
        <label>24</label>
        <mixed-citation>P. Denholm and T. Mai, Timescales of Energy Storage Needed for Reducing Renewable Energy Curtailment, NREL/TP-6A20-68960, 2017. OSTI</mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
