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Two Newton-Based Improved Algorithms for AC/DC Hybrid Power Flow

  • Yinsheng Su
  • , Nanyu Wang
  • , Guanghu Xu
  • , Qin Gao
  • , Tongpeng Mu
  • , Haicheng Yao
  • , Bao Li
  • , Yujun Li
  • China Southern Grid Co. Ltd.
  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The conventional Newton method faces plenty of challenges in calculating the power flow in AC/DC hybrid systems. This paper initially establishes a unified model for AC-DC systems to enable uniform iteration, mainly considering the multi-terminal DC based on VSC. Subsequently, an augmented rectangular coordinate model that incorporates converter losses is developed. In the rectangular coordinate system, the power flow equation is in quadratic form, and its Taylor expansion can be exactly expanded to the third term. Further, two improved algorithms, the retaining nonlinearity method and the optimal multiplier method, are proposed and implemented for the calculations. The computational results demonstrate their superior efficiency and precision.

Original languageEnglish
Title of host publication2024 8th International Conference on Power and Energy Engineering, ICPEE 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages319-326
Number of pages8
ISBN (Electronic)9798331530860
DOIs
StatePublished - 2024
Event8th International Conference on Power and Energy Engineering, ICPEE 2024 - Chengdu, China
Duration: 20 Dec 202422 Dec 2024

Publication series

Name2024 8th International Conference on Power and Energy Engineering, ICPEE 2024

Conference

Conference8th International Conference on Power and Energy Engineering, ICPEE 2024
Country/TerritoryChina
CityChengdu
Period20/12/2422/12/24

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • AC/DC hybrid system
  • augmented rectangular coordinate
  • optimal multiplier
  • power flow
  • retaining nonlinearity

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