丁立健
主要从事电介质材料介电现象、放电理论及应用、过电压监测及其防护和电气设备绝缘在线监测等的研究工作。
个性化签名
- 姓名:丁立健
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学术头衔:
博士生导师
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学科领域:
高电压工程
- 研究兴趣:主要从事电介质材料介电现象、放电理论及应用、过电压监测及其防护和电气设备绝缘在线监测等的研究工作。
学历: 1992年哈尔滨电工学院电气绝缘技术与电缆专业本科毕业,1995年哈尔滨电工学院电工材料与绝缘技术专业硕士毕业,2000年华北电力大学电工理论与新技术专业博士毕业。
工作经历: 1995年7月-1999年9月在哈尔滨理工大学电气电子工程学院工作,先后任助教、讲师;1999年9月调入华北电力大学电力系工作至今,2001年破格晋升为副教授,2004年破格晋升为教授。
研究工作经历:从94年以来参加了多个纵向和横向科研项目的研究工作。早期参加了黑龙江省自然科学基金项目“EHD热管的研制”,原能源部重大安全技术项目“500KV电力变压器油流带电试验研究”,黑龙江省科委项目“大型电力变压器外线圈绝缘纸板爬电现象的研究”,近期参加了多个华北电力大学211工程建设项目(电工理论与新技术部级重点学科建设项目)。负责完成了国家电力公司重大技术装备项目“高压直流实验室技术改造”子项目:“合成绝缘子5000h加速老化试验测量、分析和控制系统”等的研究任务,是国家自然科学基金项目“绝缘子在真空中的沿面闪络机理的研究”、国家计委项目“青藏铁路II期110kV输变电工程关键技术研究--高海拔110kV超长输电线路过电压及限制措施的研究”的主要完成人之一,主持完成国家自然科学基金项目一项“材料陷阱对真空中绝缘子沿面闪络影响的研究”(50107002)。另外近年来还负责完成了横向科研项目五项。负责或参与完成的研究项目有10项通过了部级鉴定,获北京市科技进步二等奖两次,黑龙江省科学技术进步三等奖一次,国家电网公司科技进步二等奖一次,其他局级科技进步奖三次,获国家专利一项。目前正负责一项国家自然科学基金项目、一项教育部重点项目、一项教育部优秀青年教师资助计划项目、教育部外专项目等四个纵向科研项目;负责1项横向项目;参加一项国家自然基金项目,3个横向科研项目。近年来一共在国内核心刊物和国外期刊及国际重要学术会议上发表了共发表论文60余篇,其中被SCI收录3篇,EI收录36篇,ISTP收录19篇。目前主要从事电介质材料介电现象、放电理论及应用、过电压监测及其防护和电气设备绝缘在线监测等的研究工作。
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19
丁立健, Lijian Ding, C.R. Li, Jinchun Wang, Zezhong Wang Xiaochun Chi, JiaXiang Yang
Conference Record of the 2000 IEEE International Symposium on Electrical Insulation, Anaheim, CA USA, April 2-5, 2000,-0001,():
-1年11月30日
In this study, the surface charge distribution on insulators in vacuum has been investigated under an impulse voltage (0.7/4μS) with a non-uniform field electrode system. The insulators studied were 99.9% alumina specimens with the shape of right circular cylinders about 5mm thick and 20mm in diameter. Using an electrostatic probe with shield in the form of capacitive voltage divider that was connected to an electrometer, the surface charge distribution on insulators were measured. The applied impulse voltage, and the corresponding current waveforms, the signal of luminosity were also observed during the voltage application. We investigated the surface charge distributions at different impulse voltage levels, at different shot number with a same voltage level, at the situations after a flashover occurred. Based on the experimental results, we found that the surface charge density on insulators is increased with the increase of the applied voltage, the shot number has a little influence at the same voltage level, and the charge density is decreased a lot after a flashover occurs. It's also found that the increase of charge density is often accompanied by the preflashover events.
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【期刊论文】Surface Charge and Surface Preflashover Phenomena of Alumina Insulators in Vacuum
丁立健, Lijian Ding, C.R. Li, Jingchun Wang, Wei Wang, Yangchun Cheng
,-0001,():
-1年11月30日
Investigations have been carried out on Alumina insulators in vacuum under an impulse voltage (0.7/4μS) in order to study the relationship between surface charging and surface preflashover phenomena of insulators in this paper. The Alumina insulators studied were 99.9% alumina cylindrical specimens and the employed electrode system is a non-uniform field electrode system. The surface preflashover phenomena were observed and the surface charge distribution of insulators was measured under varied impulse voltage levels and different shot number at a same fixed voltage level. Based on the experiments, it was found that the charge density and distribution is not only dependent upon the magnitude of the impulse voltage, but also the preflashover phenomena. The number of voltage shot has little influence on the charge density and distribution at the same voltage level if the surface preflashover phenomena can be observed during voltage shot.
Surface charge,, Surface preflashover,, Alumina insulator,, Vacuum
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丁立健, Lijian Ding, C.R. Li, Wei Wang, Jingchun Wang
,-0001,():
-1年11月30日
This paper has investigated flashover performance of alumina insulators prepared with different additives in vacuum under an impulse voltage. Four kinds of alumina insulator were studied, which were prepared under the same sintering conditions with different additives. The surface flashover performance of these samples has been tested in vacuum. The microstructure of alumina samples has also been observed using the technique of scanning electron microscope (SEM). Based on the experimental results, the characteristics of flashover are different from the test samples. The analysis shows that the influence of additives may be attributed to the change of microstructure.
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【期刊论文】Micro-Discharge and Surface Flashover of Insulators in Vacuum
丁立健, Lijian Ding, C.R. Li, Jingchun Wang, Y.C. Cheng
,-0001,():
-1年11月30日
Recently surface flashover phenomena of insulators in vacuum were investigated with an impulse voltage (0.7/41as). The test samples studied were 99.9% alumina specimens. The impulse voltage, current and luminosity waveforms were observed whether a flashover occurred or not. Surface charges on insulator were also measured after impulse voltage application. Micro-discharge on the surface of insulators was observed in the experiments. The experimental results show that the micro-discharge occurs frequently as a kind of preflashover phenomenon and can be observed right before the current burst of flashover almost every time. It's considered that the micro-discharge is related to the accumulated charges on the surface, which initiates a flashover.
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【期刊论文】Study of the Influence of Injected Charge on Streaming Electrification
丁立健, Jiaxiang Yang, Lijian Ding, Xiaochun Chi, Ji Liu and Yuanji He
IEEE Transactions on Dielectrics and Electrical Insulation Vol.5 No.4, August 1998 513~517,-0001,():
-1年11月30日
In this paper, the influence of injected charge on streaming electrification of transformer oil has been investigated using a combined model. The experimental results reveal that there are relations between the injected charge, the charge density and the leakage current, and the polarity effect of injected charge exist in the influence on streaming electrification. The influence of injected charge is attributed to the interaction between the electric double layer and the injected charge. The effect of oil velocity on injected charge has been analyzed also.
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【期刊论文】Creeping Discharge Performance of Oil-paper Insulation with Streaming Electrification
丁立健, Yang Jia-Xiang, Chi Xiao-Chun, Ding Li-Jian and Liu Ji
IEEE Transactions on Dielectrics and Electrical Insulation Vol.4 No.6, December I997 780~784,-0001,():
-1年11月30日
In this paper, the influence of streaming electrification on the creeping discharge of oil-paper insulation system has been investigated, using experimental models. The experimental results indicate that the initial creeping discharge voltage of oil-paper insulation system decreases with oil flow rate. The creeping discharge path develops toward the oil entrance, and there are polarity and position effects on creeping discharge under oil flowing conditions. Reasons of failure due to dendritic discharge on the surface of barrier boards in power transformers have been revealed in these experiments.
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【期刊论文】Influences of Electrical Field on Boiling-Condensation Heat Transfer System
丁立健, Yang Jia-Xiang, Ding Li-Jian, Chi Xiao-Chun, Liu Ji, Yang He
Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, Montreal, Qubec, Canada, June 16-19, 1996,-0001,():
-1年11月30日
In this paper, the Influences of electrical field on boiling-condensation heft transfer system have been investigated using a cylinder beat transfer model Freon-ll is selected as working fluid. The condensation heat transfer coefficient, the boiling heat flux the saturation pressure are meassured in this investigation. According to the experimental results, it is found that the electrical field can influence best transfer system. The boiling heat transfer is enhanced by the applied voltage, and the saturate vapor of working fluid is condensed on the high voltage electrode directly when the applied voltage is higher than 6kv. The experimental results have been discussed, and it is considered that the high electrical field strength change the thermal properties of working fluid.
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【期刊论文】A Preliminary Study of Oil-Polypropylene Insulating System
丁立健, Chi Xiao-Chun Ding Li-Jian, Yang Jia-Xiang
Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, Montreal, Qubec, Canada, June 16-19, 1996,-0001,():
-1年11月30日
In this paper, creeping discharge of oil-polypropylene insulating system have been studied using an experimental model with the flowing oil under ac voltage. The ac creeping discharge inception voltage of the oil-polypropylene system has been tested under varied conditions. According to the experimental results, all of the oil temperature, the oil flow rate and the position of poly propylene film can influence the ac creeping discharge inception voltage of oil-polypropylene system. The ac inception voltage of this system is increased along with the increase of oil temperature and oil flow rate. Moreover, the ac inception voltage is higher at the position near to oil entrance than that at the position far to oil entrance. Considering the experimental results, a new composite insulating system is put forward for reducing the negative effects of streaming electrification in larger power devices with forced-oil cooling systems.
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【期刊论文】Generator PD Measurement by Using UHF and HF Sensors
丁立健, Xin Li*, C.R. Li, Lijian Ding, Wei Wang, Weijiang Wan
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation, Indianapolis, IN USA, 19-22 September 2004,-0001,():
-1年11月30日
A measuring system for on-line detecting partial discharge of generators has been designed with the ultra high frequency (UHF) and high frequency (HF) method. It not only has the capability of calibrating the PD level, but also has the excellent ability of anti-interfering on site. The test data shows this technique is very promising.
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丁立健, Lijian Ding, Youping Tu, C.R. Li, Wei Wang
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation, Indianapolis, IN USA, 19-22 September 2004,-0001,():
-1年11月30日
This paper provides some experimental investigation on the influence of the surface roughness on the flashover performance of ceramics in vacuum. The test samples were prepared with four kinds of ceramics (99.9% Alumina) which were polished by four different SIC abrasives. The flashover performances of 20 kinds of test samples have been tested with an impulse voltage in vacuum. According to the experimental results, it was found that the roughness of the test sample was quite different among different ceramics although the same grinding procedure was used with the same abrasive. It was also found that the flashover performance was influenced by the surface roughness, and there is a trend that the samples with a lower surface roughness have a higher breakdown voltage.
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