Title :
The protection strategy analysis of the last circuit breaker in the 1 + 1/2 operation mode
Author :
Fengwei Tian ; Ming Li ; Xiangning Lin ; Pengyu Yang ; Peiwen Zheng
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper makes a brief introduction to the protection logic of the last circuit breaker of arrester type. Afterwards, two novel protection strategies for the last circuit breaker of arrester type are proposed aiming at solving the problem that the protection of the arrester type last circuit breaker at the inverter side of the high-end converter cannot function properly when it´s out of operation. Based on the simulation model of the ±800 kV Yunnan-Guangdong UHV AC-DC hybrid systems, a simulation verification is carried out on the PSCAD / EMTDC platform, and the result indicates the correctness of the proposed two novel protection strategies for the arrester type last circuit breaker.
Keywords :
HVDC power transmission; arresters; circuit breakers; hybrid power systems; invertors; power transmission protection; PSCAD-EMTDC platform; Yunnan-Guangdong UHV AC-DC hybrid system; arrester type last circuit breaker protection strategy analysis; inverter; voltage 800 kV; Analytical models; Arresters; Circuit breakers; Integrated circuit modeling; Inverters; Leakage currents; Voltage control; arrester type last circuit breaker protection; electromagnetic transient simulation; novel protection strategy;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2014 IEEE PES Asia-Pacific
DOI :
10.1109/APPEEC.2014.7065997
