Comparative Study on Melting Ice with High Frequency AC and DC Short Circuit Method

doi:10.11930/j.issn.1004-9649.2014.9.94.5

Abstract

Abstract: It is a feasible method to use the joule heat generated by the current through power lines to melt ice. Therefore, the AC current with a frequency of 1 kHz is suggested to be used for melting ice, which means by using the current-skin-effect produced by the high frequency current through the transmission line, the equivalent resistance in the unit length of transmission line will be increased. Compared with the DC current, in the same electric shed, the AC current will generate two times of joule heat in a short period of time,which will shorten the melting time and reduce the economic loss. Moreover, a serial-connected type of high frequency and high voltage power device is designed and simulated by Matlab. The results show that the alternating current with 1 kHz high-frequency is applicable to melting ice in power systems of 35 kV and below, which can provide a reference for melting ice in low-voltage distribution systems.

Key words: transmission line, icing, high-frequency current, ice-melting, distribution system, frequency conversion device, simulation calculation

CLC Number:

TM752⁺.5

ZHONG Hong-zhou, LIU Ming-guang, ZHANG Xue-Liang. Comparative Study on Melting Ice with High Frequency AC and DC Short Circuit Method[J]. Electric Power, 2014, 47(9): 94-99.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.9.94.5

https://www.electricpower.com.cn/EN/Y2014/V47/I9/94

References

[1] 周羽生,陈佩瑶. 基于高频高压激励法的输电线路融冰方法研究[J]. 电瓷避雷器,2011,14（6）：1-6.
ZHOU Yu-sheng, CHEN Pei-yao. Research on transmission line de-icing method based on high-frequency and high voltage excitation [J]. Insulators and Surge Arresters, 2011, 14(6): 1-6.
[2] 粟琼. 趋肤效应对圆柱导线电阻和电感的影响[J]. 黔东南民族师范学报,2005,23（3）：9-10,12.
LI Qiong. Skin effect of cylindrical conductor resistance and inductance[J]. Journal of Southeast Guizhou National Teacher’s College, 2005, 23(3): 9-10, 12.
[3] 覃晖,邓帅,黄伟,等. 南方电网输电线路融冰措施综述[J]. 电力系统保护与控制,2010,38（24）：231-235.
QIN Hui, DENG Shuai, HUANG Wei, et al . Summary of power transmission line thawing measures[J]. Power System Protection and Control, 2010, 38(24): 231-235.
[4] 谢运华,王坚. 川西南导线覆冰时空分布规律的研究[J]. 中国电力,2013,46（3）：30-34.
XIE Yun-hua, WANG Jian. Study on spatiotemporal distribution of conductor icing in Southwestern Sichuan[J]. Electric Power,2013, 46(3): 30-34.
[5] 谭绒,郑国. 输电导线覆冰与绝缘子串覆冰的关系分析[J]. 电力建设,2012,33（9）：28-30.
TAN Rong, ZHENG Guo. Analyze on relationship between wire icing and insulator strings icing[J]. Electric Power Construction,2012, 33(9): 28-30.
[6] 蒋兴良,范松海. 输电线路直流短路融冰的临界电流分析[J]. 中国电机工程学报,2010,30（1）：111-116.
JIANG Xing-liang, FAN Song-hai. Analysis of critical ice-melting current for short-circuit DC transmission line[J]. Proceedings of the CSEE, 2010, 30(1): 111-116.
[7] 刘和云,周迪. 防止导线覆冰临界电流的传热研究[J]. 中国电力,2001,34（3）：42-44.
LIU He-yun, ZHOU Di. Heat transfer investigation on critical current to prevent wires from icing[J]. Electric Power, 2001, 34(3): 42-44.
[8] 吴端华,何东. 输电线路直流融冰的临界电流和融冰时间分析[J]. 电力系统及其自动化学报,2010,22（5）：86-91.
WU Duan-hua, HE Dong. Analysis on critical current and ice- melting time by DC on transmission line[J]. Proceedings of the CSU-EPSA, 2010, 22(5): 86-91.
[9] 赵杰. 电网防冰融冰技术及应用[M]. 北京：中国电力出版社,2010.
[10] SADOV S Y, SHIVAKUMAR P N, FIRSOV D, et al . Mathematical model of ice melting on transmission lines[J]. Journal of Mathematical Modeling and Algorithms, 2007, 6(2):273-286.
[11] 杨世铭,陶文铃. 传热学[M]. 北京：高等教育出版社,1998.
[12] 范松海. 输电线路短路电流融冰过程与模型研究[D]. 重庆：重庆大学,2010：50-60.
[13] 蒋兴良,易辉. 输电线路覆冰及防护[M]. 北京：中国电力出版社,2002.
[14] 张志劲,黄海舟. 交流输电导线覆冰增长及临界防冰电流的试验研究[J]. 高电压技术,2012,38（2）：469-477.
ZHANG Zhi-jin, HUANG Hai-zhou. Experimental research on the icing accretion and its critical anti-icing current for conductors under AC condition [J]. High Voltage Engineering, 2012, 38(2):469-477.
[15] 王长永,张仲超. 级联型相移SPWM变流器及其在有源电力滤波器中的应用[J]. 电力系统自动化,2001,25（1）：28-30.
WANG Chang-yong, ZHANG Zhong-chao. Phase shifted SPWM technique based cascade converter and its application to active power filter[J]. Automation of Electric Power Systems, 2001, 25(1): 28-30.
[16] 王鹏,刘文胜. 移相变压器应用于高压变频器的研究与设计[J]. 变压器,2009,46（3）：9-14.
WANG Peng. LIU Wen-sheng. Research and design of application of phase-shifting transformer to HV frequency converter [J]. Transformer, 2009, 46(3): 9-14.
[17] 王鹏,耿洋,刘文胜. 高压变频器36脉波移相变压器的设计[J]. 电气开关,2009（1）：36-40.
WANG Peng, GENG Yang, LIU Wen-sheng. Design of 36 pulse phase-shiting transformer of HV frequency inverter [J]. Electric Switchgear, 2009(1): 36-40.