高电压技术2011，Vol.37Issue(2)：422-428,7.
采用统一磁路及空载试验的变压器饱和模型
Saturation Model of Transformer Using Unified Magnetic Equivalent Circuit Model and No-load Experiment
林济铿 1王超 1吕晓艳 2武乃虎 3郑卫洪4
作者信息
- 1. 天津大学电力系统仿真控制教育部重点实验室,天津,300072
- 2. 辽宁电力勘测设计院,沈阳,110005
- 3. 山东电力研究院,济南,250002
- 4. 天津电力公司调度中心,天津,300010
- 折叠
摘要
Abstract
To accurately simulate transformer saturation and to establish a transformer saturation model, based on UMEC(Unified Magnetic Equivalent Circuit) model and the no-load experiment, a new model considering the magnetic circuit saturation characters of the transformer is proposed. The model uses the UMEC model to describe the relationship of each permeance of magnetic circuit, and the curve of voltage /current and the curve of power loss gained by the no-load experiment are piecewise lined to approximately achieve the relationship of the transformer excitation permeance and excitation current. The advantages of the UMEC model such as needing no winding turns, core cross-sectional area and the length and so on, as well as the relationship between core permeance and yoke permeance, are fully utilized by the model, so that the nonlinearization of the yoke can also be indirectly considered through the nonlinearization of excitation branch; meanwhile, the nonlinearization of excitation branch can be easily obtained by the simple no-load experiment. The simulation results demonstrate that the model possesses high precision, and is conveniently applied for the practical engineering due to the needed parameters being easily obtained.关键词
变压器模型/磁路饱和/磁导非线性/UMEC/分段线性化/空载试验Key words
transformer mode/ magnetic circuit saturation/ nonlinear permeance/ UMEC/ piecewise linearization/ no-load experiment分类
信息技术与安全科学引用本文复制引用
林济铿,王超,吕晓艳,武乃虎,郑卫洪..采用统一磁路及空载试验的变压器饱和模型[J].高电压技术,2011,37(2):422-428,7.
