Topology research of deexcitation system for large generator based on soft-switching technology
- DOI
- 10.2991/ifeesd-16.2016.191How to use a DOI?
- Keywords
- large generators; deexcitation; soft-switching; "parallelÿcharged, seriesÿdischarged"; nonlinear resistor.
- Abstract
Theÿdamageÿofÿovervoltageÿandÿarcÿcausedÿbyÿstronglyÿpullingÿoutÿtheÿmagneticÿswitchingÿinÿtheÿtraditionalÿprocessÿofÿdeexcitationÿmakesÿtheÿdeexcitationÿproblemÿofÿtheÿlargeÿgeneratorÿbe-comeÿanÿimportantÿresearchÿsubject.ÿTheÿtechnologyÿofÿpowerÿelectronicsÿsoft-switchingÿprovidesÿa new way for the deexcitation of the large generator. In this paper, the topology of deexcitation system and its corresponding control circuit is designed, and it depend on the excitation parameters of the "Three Gorges" power plant. It propose a new way to design the non-linear resistor of energy consumption in deexcitation, or "parallelÿcharged, seriesÿdischarged", which significantly reduces the impact of voltage in deexcitation process, the deexcitation main switch is turned off when the main circuit current reduce to zero. The theoretical analysis prove that the deexcitation time is 0.51s and it's 0.4s from the simulation analysis. The results indicate that the deexcitation system with new topology can be fast, safe and reliable.
- Copyright
- © 2016, 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 - Qinyue Tan AU - Jianhang Zhu AU - Shiying Wang AU - Sihang Cui AU - Lei Liang PY - 2016/05 DA - 2016/05 TI - Topology research of deexcitation system for large generator based on soft-switching technology BT - Proceedings of the 2016 International Forum on Energy, Environment and Sustainable Development PB - Atlantis Press SP - 1065 EP - 1070 SN - 2352-5401 UR - https://doi.org/10.2991/ifeesd-16.2016.191 DO - 10.2991/ifeesd-16.2016.191 ID - Tan2016/05 ER -