DC Voltage Prediction based on CNN with Physics Information Embedding for MVDC Distribution Systems

Pingyang Sun, Rongcheng Wu, Hongyi Wang, Zhiwei Shen, Gen Li, Muhammad Khalid, Georgios Konstantinou

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Conventional neural networks (NNs), though efficient in rapid dc voltage calculations for medium-voltage direct current (MVDC) distribution systems with diverse converter control schemes, face accuracy challenges with untrained system parameter distributions and topology structures. This paper proposes a physics-embedded convolutional NN (PECNN) to address this issue. The PECNN is enhanced with two additional layers, including a multi-channel combination layer and a physics operation layer. The former channel combination layer strengthens the model feature extraction capability by converting all input channels constituted by initial data matrix into dc voltage, current and line conductance matrix channels. The latter physics operation layer reformulates the combined input channels by physical connections in MVDC systems. The new layers enhance the prediction accuracy and allow generalization of the model. Three MVDC distribution networks with different dc voltage levels and network layouts are used to verify the superiority of proposed PECNN compared to other NNs in different topologies.
Original languageEnglish
Title of host publicationProceedings of 2024 Ieee 10th International Power Electronics and Motion Control Conference (ipemc2024-ecce Asia)
PublisherIEEE
Publication date2024
Pages2700-2705
ISBN (Electronic)979-8-3503-5133-0
DOIs
Publication statusPublished - 2024
Event10th International Power Electronics and Motion Control Conference - Tivoli Chengdu, Chengdu, China
Duration: 17 May 202420 May 2024

Conference

Conference10th International Power Electronics and Motion Control Conference
LocationTivoli Chengdu
Country/TerritoryChina
CityChengdu
Period17/05/202420/05/2024

Keywords

  • Medium-voltage dc (MVDC) system
  • Dc voltage estimation
  • Neural network (NN)
  • Convolutional NN (CNN)

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