Research on circuit breaker failure protection and the secondary accelerated fault isolation scheme of VSC-HVDC grids
نویسندگان
چکیده
When the direct current circuit breaker (DCCB) fails to operate, fault range will further expand, endangering safe operation of power gird. Therefore, this study proposes a DCCB failure protection method and secondary accelerated isolation scheme voltage source converter-based high-voltage (VSC-HVDC) grids. On basis considering influence disconnection, characteristics after are analyzed, based on “increase current” discrimination is proposed. By analyzing logical relationship among failed re-tripping, adjacent action, blocking converter station, AC proposed minimize area. The achieves DC faults avoids trip effectively. Simulation results verify effectiveness scheme.
منابع مشابه
A Novel Topology of Hybrid HVDC Circuit Breaker for VSC-HVDC Application
Van-Vinh Nguyen 1, Ho-Ik Son 1, Thai-Thanh Nguyen 1 ID , Hak-Man Kim 1,2,* and Chan-Ki Kim 3 1 Department of Electrical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea; [email protected] (V.-V.N.); [email protected] (H.-I.S.); [email protected] (T.-T.N.) 2 Research Institute for Northeast Asian Super Grid, Incheon National University, 119 Academy-ro, Yeo...
متن کاملRequirements for Fault Protection in HVDC Grids
Conventional Voltage Source Converters (VSC) cannot interrupt DC fault currents and DC circuit breakers are not yet commercially available for HVDC power ratings. Thus, the protection of VSC-HVDC systems is still an obstacle for the development of this technology. The features of VSC-HVDC systems make them suitable for implementing HVDC grids. Nevertheless, HVDC grids are more complex than poin...
متن کاملA Hybrid Reliability Evaluation Method for Meshed VSC-HVDC Grids
Haipeng Xie 1, Zhaohong Bie 1,*, Yanling Lin 1 and Chao Zheng 2 1 The State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China; [email protected] (H.X.); [email protected] (Y.L.) 2 The Department of Research and Application of New Technology, China Electric Power Research Institution, Beijing 100192, China; zhengch@epri....
متن کاملOf a High Current Hvdc Circuit Breaker with Fast Fault Clearing Capability
Recent yea rs have seen r a p i d growth i n d i r e c t c u r r e n t t ransmiss ion. Th is growth increases the need and scope o f a p p l i c a t i o n f o r a h i g h vo l tage d i r e c t c u r r e n t c i r c u i t breaker . S i g n i f i c a n t improvements have been made i n a p r e v i o u s l y developed 500 kV, 2000A HVdc c i r c u i t breaker . These improvements have increased t h...
متن کاملControl and Protection of HVDC Grids
......................................................................... iii Acknowledgements ........................................................ v Table of
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Energy Research
سال: 2023
ISSN: ['2296-598X']
DOI: https://doi.org/10.3389/fenrg.2023.1211269