A Flexible Over-Frequency Generator Tripping Method Based on Power Flow Tracing
Yi-xuan Chen, Zhi-hang Zhou, Ye He, Ling-fang Li, Li-bao Shi
Available Online July 2019.
- https://doi.org/10.2991/eee-19.2019.19How to use a DOI?
- Frequency stability, Asynchronous interconnection, Over-frequency generator tripping, Power flow tracing
- With the rapid development of DC transmission in recent years in China, frequency stability has become a key issue for the normal operation of the entire asynchronous interconnected electric system. When the external DC transmission line experiences a fault, the frequency of the electric grid at sending end will inevitably rise, which may further cause frequency stability problem. Therefore, in order to prevent system frequency instability, over-frequency generator tripping devices are widely installed in major power plants. This paper proposes an over-frequency generator tripping scheme based on the power flow tracing technology. Some significant strategies including predetermination of maximum generator tripping capacity in each round, calculation of the power flow contribution level for each generator, sorting and grouping of generators to be tripped, optimized proportion of generator tripping, and the inspection of over tripping phenomenon are discussed elaborately. Finally, the validity and effectiveness of the proposed strategy is verified by conducting case studies.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Yi-xuan Chen AU - Zhi-hang Zhou AU - Ye He AU - Ling-fang Li AU - Li-bao Shi PY - 2019/07 DA - 2019/07 TI - A Flexible Over-Frequency Generator Tripping Method Based on Power Flow Tracing BT - 2nd International Conference on Electrical and Electronic Engineering (EEE 2019) PB - Atlantis Press SP - 112 EP - 117 SN - 2352-5401 UR - https://doi.org/10.2991/eee-19.2019.19 DO - https://doi.org/10.2991/eee-19.2019.19 ID - Chen2019/07 ER -