Research on Variation of Reactive Power Capacity under DC Bias of Transformers
- 10.2991/ame-17.2017.6How to use a DOI?
- HVDC, DC bias, Transformer, Excitation current, Reactive power compensation capacity.
When the high voltage direct current (HVDC) transmission lines run in monopole grounding operation or bipolar asymmetric operation, most of the DC current will flow the loop consisted of the grounding electrode and AC lines between transformers. This current increases the reactive power consumption of the transformer and threats the normal operation of the power grid. To solve this problem, this paper focuses on the increasing of excitation current when the transformer works on DC magnetic bias, and a simulation model of substation system under DC bias condition is established based on PSCAD. Quantitative analysis of the variation of the excitation current and the condition of reactive power consumption of transformers under different biasing current injection is carried out. The result shows that with the increase of the DC biasing current, the transformer excitation current distortion and reactive power loss increases sharply, which is important to the research on DC current and the reactive power consumption of the transformer under different bias current injections.
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Ying-Fa He AU - Hang Zhao AU - Chang Liu AU - Xuan Zhou AU - Cao-Wei Wu AU - Zhi-Xun Wang AU - Ying Zheng PY - 2017/04 DA - 2017/04 TI - Research on Variation of Reactive Power Capacity under DC Bias of Transformers BT - Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017) PB - Atlantis Press SP - 33 EP - 40 SN - 2352-5401 UR - https://doi.org/10.2991/ame-17.2017.6 DO - 10.2991/ame-17.2017.6 ID - He2017/04 ER -