| .基于MATLAB的电快速瞬变脉冲群形成机理及防护措施研究[J].电气自动化,2011,(4): |
| 基于MATLAB的电快速瞬变脉冲群形成机理及防护措施研究 |
| Study on the Forming Mechanism and Safeguard Procedures of EFT/B |
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| DOI： |
| 中文关键词: 电快速瞬变脉冲群 电力系统建模 电磁兼容(EMC) 电磁干扰 |
| 英文关键词:EFT/B Power System Modeling electromagnetic compatibility(EMC) Electro-magnetic interference |
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| 中文摘要: |
| 根据开关操作时形成电快速瞬变脉冲群的过程,在MATLAB中建立了隔离开关电弧重燃和熄灭的模型,仿真电力系统一次回路中隔离开关切感性负载(空载变压器)时引起的电快速瞬变脉冲群,得到相关电压波形与结果,并采取MOV(金属氧化物避雷器)保护,RC保护,相控开关技术抑制一次回路中的电快速瞬变脉冲群,根据其特点提出综合配合措施,通过仿真验证了采取措施的正确性。通过该工作,介绍利用MATLAB建立瞬态干扰模型的方法,利用MATLAB的易扩展性,为电力系统暂态干扰抑制建模提供新思路。 |
| 英文摘要: |
| Electrical Fast Transient Burst(EFT/B) has characteristic such as short rise time and duration,high amplitude and repeat frequency.It interfere the microcomputer protection system in the transformer station.This is a difficult problem and is hard to conquer.Based on the Mechanism of EFT/B when the no-load transformer switching-off,build the extinguish and restrike model of the isolating switch voltaic arc and got the according voltage waves.Because most integrating circuit for resisting transient disturbanc... |
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