TY - GEN
T1 - Control strategy design for line-commutated converter based specail series multi-terminal DC transmission
AU - Li, Shaohua
AU - Wang, Xiuli
AU - Gao, Jianming
AU - Su, Yun
AU - Zhang, Wang
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/19
Y1 - 2016/10/19
N2 - Multi-terminal dc (MTDC) systems based on line-commutated converters have been studied and discussed for more than fifty years. However, no series MTDC system has actually been implemented due to the difficulties in the dc circuit breaker design and the coordination between dc terminals. Recently, the topology with two series converters located in the same station has been becoming popular in practice which in fact is a special series MTDC scheme. This paper describes the control system provided for this special series MTDC schemes. New strategy for the control system is proposed which is much more concise than the conventional method. To optimize the cooperation between series rectifiers, an improved dc voltage balancing control is included. The behavior of the special MTDC system is equal to that of the comparable 2-terminal system with each pole consisting of only one single converter. Connection and disconnection of converters are key technologies for the MTDC system. The method of doing this is described and validated using PSCAD/EMTDC.
AB - Multi-terminal dc (MTDC) systems based on line-commutated converters have been studied and discussed for more than fifty years. However, no series MTDC system has actually been implemented due to the difficulties in the dc circuit breaker design and the coordination between dc terminals. Recently, the topology with two series converters located in the same station has been becoming popular in practice which in fact is a special series MTDC scheme. This paper describes the control system provided for this special series MTDC schemes. New strategy for the control system is proposed which is much more concise than the conventional method. To optimize the cooperation between series rectifiers, an improved dc voltage balancing control is included. The behavior of the special MTDC system is equal to that of the comparable 2-terminal system with each pole consisting of only one single converter. Connection and disconnection of converters are key technologies for the MTDC system. The method of doing this is described and validated using PSCAD/EMTDC.
KW - Multi-terminal dc (MTDC)
KW - connection/disconnection of converters
KW - dc voltage balancing control
KW - series converters
UR - https://www.scopus.com/pages/publications/84997208351
U2 - 10.1109/ICIEA.2016.7603724
DO - 10.1109/ICIEA.2016.7603724
M3 - 会议稿件
AN - SCOPUS:84997208351
T3 - Proceedings of the 2016 IEEE 11th Conference on Industrial Electronics and Applications, ICIEA 2016
SP - 978
EP - 983
BT - Proceedings of the 2016 IEEE 11th Conference on Industrial Electronics and Applications, ICIEA 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE Conference on Industrial Electronics and Applications, ICIEA 2016
Y2 - 5 June 2016 through 7 June 2016
ER -