NDLI: Study on the hybrid ion-flow field of HVDC and HVAC transmission lines by the nodal discontinuous Galerkin time-domain method

Content Provider	IET Digital Library
Author	Tian, Yi Huang, Xinbo Tian, Wenchao Zhu, Yongcan Zhao, Long Zhang, Ye
Abstract	The high-voltage direct current (HVDC) and HV alternating current (HVAC) hybrid transmission lines in the same corridor is an effective way to enhance the power transmission capacity of the corridor and save land resource. The transmission lines parameters such as the corridor width, the height of transmission lines, and electromagnetic environment can be analysed and optimised by the calculation of the hybrid ion-flow field. In this study, nodal discontinuous Galerkin time-domain method is for the first time applied to the calculation of the hybrid ion-flow field. Furthermore, corona interactions between the HVDC and HVAC lines are considered in the process of numerical solution. Compared with measured results and previous methods, the proposed approach is verified to be able to obtain wiggle-free numerical solution with significantly reducing the computational burden, and meanwhile, the calculation precision is increased greatly. The ground-level electric field and ion current density of the hybrid lines in time domain are analysed, and then the time-domain characteristic is explored. Finally, the ion-flow fields of the hybrid ±800 kV DC/500 kV AC transmission lines in parallel and on the same tower have been made a comparative analysis and optimisation, which provide theoretical basis for real hybrid towers design.
Starting Page	209
Ending Page	217
Page Count	9
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 1, Jan (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.0843
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-01-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Corona Interactions Corridor Width D.C. Transmission Electromagnetic Environment Galerkin Method Ground-level Electric Field High-voltage Direct Current Hybrid Transmission Line HV Alternating Current Hybrid Transmission Line HVAC Hybrid Transmission Line HVDC Hybrid Transmission Line HVDC Power Transmission Hybrid Ion-flow Field Ion Current Density Mathematical Analysis Network And Transmission Line Calculations Nodal Discontinuous Galerkin Time-domain Method Power Transmission Cables Power Transmission Capacity Power Transmission Line Real Hybrid Towers Design Time Domain Analysis Transmission Line Height Transmission Network Calculations Voltage 500 KV Voltage 800 KV
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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Influence factors and reasonable arrangement of corridor width of ±800 kV HVDC and 750 kV HVAC hybrid transmission lines

Characteristics of electrostatic discharges between metallic objects in the ion-flow field under HVDC lines

Simplified approach of maximum electric field distribution on the ground near HVAC–HVDC shared tower transmission lines

Simplified calculation of maximum ground-level electric field when two HVDC transmission lines run across at any intersection angle

Ground-level DC electric field sensor for overhead HVDC/HVAC transmission lines in hybrid corridors

Ion flow field modelling based on lattice Boltzmann method and its mesh refinement

Shielding Effect of HVAC Transmission Lines on the Ion-Flow Field of HVDC Transmission Lines

Simulation of Ion-Flow Field at the Crossing of HVDC and HVAC Transmission Lines

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Study on the hybrid ion-flow field of HVDC and HVAC transmission lines by the nodal discontinuous Galerkin time-domain method

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