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Research on Optimal Estimation Method of Technical Line Loss in Low Voltage Station Area Based on Improved Gradient Descent
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Lei FANG1, Jun XU1, Yi ZHAO1, Xiaofan XING1, Huan MAO2
Electric Drive | 2025, 55(6) : 64 - 71
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Electric Drive | 2025, 55(6): 64-71
Research on Optimal Estimation Method of Technical Line Loss in Low Voltage Station Area Based on Improved Gradient Descent
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Lei FANG1, Jun XU1, Yi ZHAO1, Xiaofan XING1, Huan MAO2
Affiliations
  • 1 Nanjing Power Supply Company，State Grid Jiangsu Electric Power Co.，Ltd.，Nanjing 210000，Jiangsu，China
  • 2 School of Electrical Engineering，Southeast University，Nanjing 210096，Jiangsu，China
Published: 2025-06-20 doi: 10.19457/j.1001-2095.dqcd25613
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The traditional technical line loss prediction method of low voltage station area has some problems，such as relatively extensive calculation，requiring underlying physical topology，and relying on influence characteristic data. In recent years，a technical line loss and meter error joint estimation technical route based on the principle of conservation of electric energy in station area has been formed，but there are still some problems of difficult model solving and long data requirement period. In order to achieve accurate estimation of technical line loss in low voltage station area，the correlation between daily technical line loss and energy supply was further analyzed on the basis of the existing joint estimation route，and the original model was optimized considering those users with small energy consumption have little influence on the model，and the technical line loss was solved based on gradient descending convex optimization algorithm. Finally，6 759 stations in a certain area were used to calculate the technical line loss. Compared with the traditional algorithm，the assignment accuracy of the proposed method reaches 98%，and is significantly improved.

low voltage station area  /  gradient descent （GD）  /  dynamic line loss  /  optimal estimation method
Lei FANG, Jun XU, Yi ZHAO, Xiaofan XING, Huan MAO. Research on Optimal Estimation Method of Technical Line Loss in Low Voltage Station Area Based on Improved Gradient Descent[J]. Electric Drive, 2025 , 55 (6) : 64 -71 . DOI: 10.19457/j.1001-2095.dqcd25613
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Year 2025 volume 55 Issue 6
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Article Info
doi: 10.19457/j.1001-2095.dqcd25613
  • Receive Date：2024-01-19
  • Online Date：2025-10-30
  • Published：2025-06-20
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  • Received：2024-01-19
  • Revised：2024-04-03
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Affiliations
    1 Nanjing Power Supply Company，State Grid Jiangsu Electric Power Co.，Ltd.，Nanjing 210000，Jiangsu，China
    2 School of Electrical Engineering，Southeast University，Nanjing 210096，Jiangsu，China
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光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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