摘要
阐述了一种新型的微机变压器保护算法，该算法利用变压器磁链平衡方程，考虑了变压器铁芯非线性和磁滞效应，但又不直接反映在算法中，无需铁芯的Ｖ─Ｈ曲线数据。经数字仿真验证，此算法在半个周波左右能区别出变压器区内外故障和励磁涌流，很适合于微机变压器保护。
This paper presents a new algorithm on transfurmer protection with micro-computer. Consideringthe iron core nonlinearity of the transformer and the magnetic-delay effect, the algorithm uses the flux balance equation of the transformer without the B-H curve. Havlng being tested by digital simulation, this al-gorithm can discern outer faults, inner faults and the exciting current of the transformer within half wave.SO, this algorithm is particularly suitable for transformer protection with micro-computer.
出处
《电力系统自动化》
EI
CSCD
北大核心
1994年第9期24-29,共6页
Automation of Electric Power Systems
关键词
变压器
非线性
微机保护
transformer differential equatiun non-linearity magnetic-delay effect
