由于交流电压下的空间电荷在交联聚乙烯（XLPE）电缆绝缘老化过程中起到非常重要的作用，采用新研制的基于电声脉冲（PEA）法的空间电荷测量系统，对10 kV XLPE电缆本体在工频交流电压下的空间电荷进行测量。提出一种采用最高频率为200 Hz的继电器产生高压窄脉冲以及控制脉冲施加到固定工频相位的方法，实现一个工频周波下每隔22.5°为1个测试点，共计16个不同相位的空间电荷信息采集。结果表明：在外施交流电压90°和270°相位处测得的PEA信号峰幅值最大，在0°和180°相位处峰幅值最小。
Space charge plays a very important role in the ageing process of cross-linked polyethylene (XLPE) cable insulation under AC voltage. A new space charge measurement system based on pulsed electro-acoustic(PEA) method was developed to measure the space charge of 10 kV XLPE cable under AC voltage. A relay with the highest frequency of 200 Hz was used to generate high voltage narrow pulse and control the pulse to regular power frequency phase, and every 22.5° as one test point under a power frequency cycle, a total of sixteen space charge information at different phases were collected. The results show that the PEA peaks reach the maximum value at 90° and 270° under AC voltage, and the peaks have the smallest amplitude at 0° and 180°.
参考文献
| [1] | Li Ziyu;Liu Rongsheng .Space charges and initiation of electrical trees[J].IEEE transactions on electrical insulation. (Institute of Electrical and Electronics Engineers. Electrical Insulation Group). New York.,1989(1):83-89. |
| [2] | P. Notingher;Jr.;A. Toureille;J. Santana;L. Martinotto;M. Albertini .Study of space charge accumulation in polyolefins submitted to ac stress[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,2001(6):972-984. |
| [3] | 陈广辉,王安妮,何东欣,杨凯,陈胜科,王伟,孙辉.交联聚乙烯绝缘空间电荷研究进展[J].绝缘材料,2012(04):27-30. |
| [4] | 郑飞虎,张冶文,肖春.聚合物电介质的击穿与空间电荷的关系[J].材料科学与工程学报,2006(02):316-320,285. |
| [5] | George Chen;Zhiqiang Xu .Charge trapping and detrapping in polymeric materials[J].Journal of Applied Physics,2009(12):123707-1-123707-5. |
| [6] | Y. F. F. Ho;G. Chen;A. E. Davies;S. G. Swingler;S. J. Sutton;R. N. Hampton;S. Hobdell .Measurement of space charge in XLPE insulation under 50 Hz AC electric stresses using the LIPP method[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,2002(3):362-370. |
| [7] | Xu Z;Zhao J;Chen G.An Improved Pulsed Electro-acoutic System for Space Charge Measurement under AC Conditions[A].Potsdam,Germany,2010:1-4. |
| [8] | Fabiani D;Montanari G C;Laurent C et al.Polymeric HVDC Cable Design and Space Charge Accumulation Part 1[J].IEEE ELECTRICAL INSULATION MAGAZINE,2007,23(6):11-19. |
| [9] | John Denseley .Aging Mechanisms and Diagnostics for Pow-er Cables-An Overview[J].IEEE Electrical Insulation Maga-zine,2001,17(1):14-22. |
| [10] | A. Ishibashi;T. Kawai;S. Nakagawa;H. Muto;S. Katakai;K. Hirotsu;T. Nakatsuka .A study of treeing phenomena in the development of insulation for 500 kV XLPE cables[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,1998(5):695-706. |
| [11] | J. C. Fothergill;G. C. Montanari;G. C. Stevens;C. Laurent;G. Teyssedre;L. A. Dissado;U. H. Nilsson;G. Platbrood .Electrical, microstructural, physical and chemical characterization of HV XLPE cable peelings for an electrical aging diagnostic data base[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,2003(3):514-527. |
| [12] | Tzimas A;Fu M;Dissado L A.Space Charge Char-acterization of XLPE peelings with a Cable Prehistory：Be-fore and After AC Endurance Tests[A].Winchester,2007 |
| [13] | 欧阳本红,赵健康,陈铮铮,李巍巍,王霞,李建英.交联聚乙烯电缆空间电荷与理化性能的关系[J].绝缘材料,2012(03):47-50. |
| [14] | 郝建,徐瑞林,George Chen,廖瑞金,伏进,吴高林,王谦.直流和工频电压下油浸纸绝缘系统空间电荷特性的差异[J].电网技术,2013(04):1166-1173. |
| [15] | Chong YL;Chen G;Miyake H;Matsui K;Tanaka Y;Takada T .Space charge and charge trapping characteristics of cross-linked polyethylene subjected to ac electric stresses[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2006(8):1658-1666. |
| [16] | Chong Y L;Miyake H;Tanaka Y.Space Charge in Polyethylene under AC Electric Stress using the Plused Electroacoustic Method[A].IEEE Boulder,CO,USA,2004:77-80. |
| [17] | 王伟,高超飞,孙辉,李上国.电缆本体空间电荷电声脉冲法测量装置的研制[J].高电压技术,2011(06):1349-1354. |
| [18] | Takada Tatsuo.Space Charge Measurement in Solid Dielec-tric Materials by Pulsed Electroacoustic Method[M].Tokyo Musashi Institute of Technology,1994 |
| [19] | 尹毅 .聚合物电老化的物理和化学机理的研究[D].上海交通大学,2002. |
| [20] | 高宇,杜伯学.采用表面电位衰减法表征高压交联聚乙烯电缆绝缘中空间电荷的输运特性[J].高电压技术,2012(08):2097-2103. |
| [21] | 郑飞虎,张冶文,宫斌,朱建伟,吴长顺.低密度聚乙烯中空间电荷包的形成与迁移过程[J].中国科学E辑,2005(07):701-707. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%