A non-unit line protection method for MMC-HVDC grids based on the curvatures of backward traveling waves

• Main Authors: Xie, Fan, Hao, Zhiguo, Ye, Dongmeng, Yang, Songhao, Li, Chuanxi, Dai, Guoan, Zhang, Baohui, Wang, Ting
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Electrical and electronic engineering; Modular Multilevel Converters; Non-Unit Protection
• Online Access: https://hdl.handle.net/10356/171255
• Institution: Nanyang Technological University

The existing protection techniques for high-voltage direct-current (HVDC) grids suffer from several shortcomings such as high sampling frequency, poor robustness, and reliance on simulation for threshold setting. To solve these problems, this paper proposes a non-unit protection method for modular m...