Work

Power reversal strategy through DC current reversal using a new bidirectional LCC HVDC system

Year: 2025

Type: article

Abstract: This paper presents a new LCC HVDC topology with bidirectional current capability. Based on the proposed topology, this paper further develops a control strategy that achieves power reversal without reversing the DC voltage polarity, different from the power reversal strategy in conventional LCC HVDC that is based on reversing the DC voltage polarity. This distinguished feature of the proposed method significantly improves the applicability of LCC HVDC for projects where DC voltage polarity reversal is undesirable. Simulation results of the proposed method using the CIGRE benchmark system and a modified 39-bus system are presented to validate the performance of the proposed method. Comparison with conventional power reversal method is made. Cost implications and various aspects of practical implementation of the proposed method are also discussed.

Source: International Journal of Electrical Power & Energy Systems

DOI: 10.1016/j.ijepes.2025.111282

Authors: Kai Zhang, Ying Xue, Zhixuan Li

Institutions: Guangdong Power Grid Company (China), China Southern Power Grid (China), South China University of Technology

Language: English

Topic: HVDC Systems and Fault Protection

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $3,920