Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks
The integration of distributed generation (DG) into a power distribution network allows the establishment of a microgrid (MG) system when the main grid experiences a malfunction or is undergoing maintenance. In this case, the power-generating capacity of distributed generators may be less than the l...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/6/2659 |
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| author | Zohaib Hussain Leghari Mohammad Yusri Hassan Dalila Mat Said Laveet Kumar Mahesh Kumar Quynh T. Tran Eleonora Riva Sanseverino |
| author_facet | Zohaib Hussain Leghari Mohammad Yusri Hassan Dalila Mat Said Laveet Kumar Mahesh Kumar Quynh T. Tran Eleonora Riva Sanseverino |
| author_sort | Zohaib Hussain Leghari |
| collection | DOAJ |
| description | The integration of distributed generation (DG) into a power distribution network allows the establishment of a microgrid (MG) system when the main grid experiences a malfunction or is undergoing maintenance. In this case, the power-generating capacity of distributed generators may be less than the load demand. This study presents a strategy for the effective utilization of deployed active and reactive power sources under power mismatch conditions in the islanded distribution networks. Initially, the DGs’ and capacitors’ optimal placement and capacity were identified using the Jaya algorithm (JA) with the aim to reduce power losses in the grid-connected mode. Later, the DG and capacitor combination’s optimal power factor was determined to withstand the islanded distribution network’s highest possible power demand in the event of a power mismatch. To assess the optimal value of the DG–capacitor pair’s operating power factor (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>p</mi><mi>f</mi></mrow><mrow><mi>s</mi><mi>o</mi><mi>u</mi><mi>r</mi><mi>c</mi><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula>) for the islanded operation, an analytical approach has been proposed that determines the best trade-off between power losses and the under-utilization of accessible generation. The test results on 33-bus and 69-bus IEEE distribution networks demonstrate that holding the islanded network’s load power factor (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>p</mi><mi>f</mi></mrow><mrow><mi>l</mi><mi>o</mi><mi>a</mi><mi>d</mi></mrow></msub></mrow></semantics></math></inline-formula>) equal to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>p</mi><mi>f</mi></mrow><mrow><mi>s</mi><mi>o</mi><mi>u</mi><mi>r</mi><mi>c</mi><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula> during the power imbalance conditions allows the installed distributed sources to effectively operate at full capacity. As expected, the proposed strategy will assist the utility companies in designing efficient energy management or load shedding schemes to effectively cope with the power mismatch conditions. |
| first_indexed | 2024-03-11T06:37:07Z |
| format | Article |
| id | doaj.art-a95229a70ec2466c9b299dabbb76e2c4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T06:37:07Z |
| publishDate | 2023-03-01 |
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| series | Energies |
| spelling | doaj.art-a95229a70ec2466c9b299dabbb76e2c42023-11-17T10:49:12ZengMDPI AGEnergies1996-10732023-03-01166265910.3390/en16062659Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution NetworksZohaib Hussain Leghari0Mohammad Yusri Hassan1Dalila Mat Said2Laveet Kumar3Mahesh Kumar4Quynh T. Tran5Eleonora Riva Sanseverino6Centre of Electrical Energy Systems (CEES), Institute of Future Energy (IFE), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru 81310, Johor, MalaysiaCentre of Electrical Energy Systems (CEES), Institute of Future Energy (IFE), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru 81310, Johor, MalaysiaCentre of Electrical Energy Systems (CEES), Institute of Future Energy (IFE), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru 81310, Johor, MalaysiaDepartment of Mechanical Engineering, Mehran University of Engineering and Technology (MUET), Jamshoro 76062, Sindh, PakistanDepartment of Electrical Engineering, Mehran University of Engineering and Technology (MUET), Jamshoro 76062, Sindh, PakistanInstitute of Energy Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10072, VietnamDepartment of Engineering, University of Palermo, 90128 Palermo, ItalyThe integration of distributed generation (DG) into a power distribution network allows the establishment of a microgrid (MG) system when the main grid experiences a malfunction or is undergoing maintenance. In this case, the power-generating capacity of distributed generators may be less than the load demand. This study presents a strategy for the effective utilization of deployed active and reactive power sources under power mismatch conditions in the islanded distribution networks. Initially, the DGs’ and capacitors’ optimal placement and capacity were identified using the Jaya algorithm (JA) with the aim to reduce power losses in the grid-connected mode. Later, the DG and capacitor combination’s optimal power factor was determined to withstand the islanded distribution network’s highest possible power demand in the event of a power mismatch. To assess the optimal value of the DG–capacitor pair’s operating power factor (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>p</mi><mi>f</mi></mrow><mrow><mi>s</mi><mi>o</mi><mi>u</mi><mi>r</mi><mi>c</mi><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula>) for the islanded operation, an analytical approach has been proposed that determines the best trade-off between power losses and the under-utilization of accessible generation. The test results on 33-bus and 69-bus IEEE distribution networks demonstrate that holding the islanded network’s load power factor (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>p</mi><mi>f</mi></mrow><mrow><mi>l</mi><mi>o</mi><mi>a</mi><mi>d</mi></mrow></msub></mrow></semantics></math></inline-formula>) equal to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>p</mi><mi>f</mi></mrow><mrow><mi>s</mi><mi>o</mi><mi>u</mi><mi>r</mi><mi>c</mi><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula> during the power imbalance conditions allows the installed distributed sources to effectively operate at full capacity. As expected, the proposed strategy will assist the utility companies in designing efficient energy management or load shedding schemes to effectively cope with the power mismatch conditions.https://www.mdpi.com/1996-1073/16/6/2659capacitorsdistributed generationdistribution networkislanded operationmicrogridpower supply–demand imbalance |
| spellingShingle | Zohaib Hussain Leghari Mohammad Yusri Hassan Dalila Mat Said Laveet Kumar Mahesh Kumar Quynh T. Tran Eleonora Riva Sanseverino Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks Energies capacitors distributed generation distribution network islanded operation microgrid power supply–demand imbalance |
| title | Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks |
| title_full | Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks |
| title_fullStr | Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks |
| title_full_unstemmed | Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks |
| title_short | Effective Utilization of Distributed Power Sources under Power Mismatch Conditions in Islanded Distribution Networks |
| title_sort | effective utilization of distributed power sources under power mismatch conditions in islanded distribution networks |
| topic | capacitors distributed generation distribution network islanded operation microgrid power supply–demand imbalance |
| url | https://www.mdpi.com/1996-1073/16/6/2659 |
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