Title :
Analysis of dual-infeed HVDC with LCC inverter and VSC rectifier
Author :
Chunyi Guo ; Chengyong Zhao ; Xiuyu Chen
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
A dual-infeed HVDC with LCC inverter and VSC rectifier at the same busbar is investigated. The impact of VSC rectifier on LCC inverter is quantified by the “Apparent Increase in Short Circuit Ratio” or AISCR index. Then, steady state and transient aspects, such as the maximum available power (MAP), temporary over-voltage (TOV), "Commutation Failure Immunity Index" (CFII), and fault recovery performance are considered in the system performance analysis. The results show that, the VSC rectifier has the ability to improve the maximum available power, regulate the ac voltage, and enhance commutation failure immunity of LCC inverter. Moreover, compared with the dual-infeed HVDC with VSC and LCC both inverters, the VSC rectifier provides more contribution to the performance improvement of LCC converter.
Keywords :
HVDC power convertors; busbars; fault diagnosis; invertors; rectifiers; AISCR index; Apparent Increase in Short Circuit Ratio; CFII; Commutation Failure Immunity Index; LCC inverter; MAP; TOV; VSC rectifier; ac voltage regulation; busbar; commutation failure immunity enhancement; dual-infeed HVDC; fault recovery performance; line commutated converter high voltage direct current; maximum available power; performance improvement; steady state aspects; temporary over-voltage; transient aspects; voltage source converter; HVDC transmission; Indexes; Inverters; Power conversion; Rectifiers; Thyristors; Apparent Increase in Short Circuit Ratio; Dual-Infeed HVDC; Line Commutated Converter; Voltage Source Converter;
Conference_Titel :
PES General Meeting | Conference & Exposition, 2014 IEEE
Conference_Location :
National Harbor, MD
DOI :
10.1109/PESGM.2014.6939185
