摘要
为开展直流陡脉冲复合电场净化脏污变压器油的实验研究,研制了1套可循环运行的电场反应器。首先建立了油中杂质颗粒在直流及脉冲电场作用下的受力模型,得出适合净油的电场类型;然后采用Ansoft Maxwell仿真软件对板-板电场反应器、线-筒电场反应器进行电场分布的优化仿真;最后,综合考虑电气、机械等因素,对反应器的循环方式、板间距离、使用材料等进行设计和制作,并进行性能测试。模型计算显示,具有较大电场强度和电场梯度的直流陡脉冲复合电场适用于净化脏污变压器油;仿真结果显示,含有集尘体的板-板电场反应器更适于变压器油净化;测试结果显示,反应器的各项性能均满足设计要求,其中绝缘性能可以承受20 kV直流叠加10 kV脉冲,完全可以用于后续脏污变压器油的净化实验研究。
We developed a circulative reactor as a part of DC-steep pulse electric field generator to purify contaminated or aged transformer oil. Firstly, we established a model of impurity particle involved in transformer oil to analyze the force condition on the particles under DC and pulsed electric fields. Then, we simulated the electric field distribution of plate-plate shape reactor and wire-tube shape reactor by using the Ansoft Maxwell to select a better geometric shape for the reactor. Finally, we designed, built up, and tested the reactor taking into account some electrical and mechanical fac- tors such as circulatory mode, distance between electrodes, materials, etc. The force condition analysis show that the superposed DC-steep pulse electric field with high intensity and large electric field gradient is effective in purifying con- taminated transformer oil. The simulation of electric field distribution suggests that the plate-plate shape reactor with impurity collecting body is suitable for transformer oil purification. According to the performance test, the reactor meets all the design requirements, and its insulation can withstand electric field of superposed 20 kV DC and 10 kV impulse, which is fully capable for future purification experiments.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2014年第9期2714-2720,共7页
High Voltage Engineering
基金
国家重点基础研究发展计划(973计划)(2009CB724505)
重庆市科委自然科学基金(CSTC
2010BB4219)
中央高校基本科研业务费(CDJRC10150007)~~
关键词
变压器油
净化
直流叠加脉冲
受力分析
电场分布仿真
可循环反应器
transformer oil
purification
superposed DC-steep pulse
force condition analysis
electric field distributionsimulation
circulative reactor
