宜宾白沙220kV变电站主变绝缘多参量在线监测系统及应用研究
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摘要
电力变压器是变电站最昂贵的设备，也是事故多发的电气设备之一，其运行的可靠性直接关系到电力系统的安全及供电的可靠性，为保证电力系统的安全运行，必须加强对运行电力变压器绝缘的监测与诊断。
通过对主变压器套管介损在线监测原理及应用的研究，提出了以电流和电压过零相位差为原理的在线监测介损的方法，分析了产生误差的原因及系统干扰的来源，提出了适合现场实际的抗干扰的方法，通过现场实测数据说明了变压器套管介损在线监测系统可行性。
通过对变压器局部放电的在线监测原理及方法的研究，提出了有高频谐振电流传感器、抗干扰调节系统及信号采集系统组成的局部放电在线监测方案，并分析了抑制干扰的方法。
通过对主变铁芯接地电流的在线监测技术的研究，提出了采用不同档次长线传感器在线监测铁芯接地电流的新方法。
通过对主变油中六种溶解气体在线监测原理及应用的研究，提出了以渗透膜、多传感气敏元件检测油中多种气体为特征的变压器油中六种溶解气体色谱在线监测方法，通过现场实测数据分析了其运行的稳定性与可靠性。
论文通过对宜宾白沙220KV变电站主变压器实施多参量在线监测原理及方法的研究，为无人职守站的推广应用和及主变压器在线监测装置做出了实际尝试。整体装置的现场运行表明：该系统运行稳定、数据可靠，具备在线监测的能力，可作为变压器状态检修的依据。
Main transformer is most costly and easily goes wrong. The security and
reliability of the power system is directly influenced by its reliability. The
monitoring and diagnosis of transformer is necessarily reinforced.
The paper presents the method and principle of on-line monitoring of
dielectric loss based on the theory of phasic difference which current and
voltage pass zero. As the same time, it analyzes data measured in the
substation and the reason of error.
Secondly, The paper studies the method and principle of on-line
monitoring of partial discharge and presents the monitoring project base on the
system which includes high frequency syntonic sensor, anti-jamming control
and signal sampling. The method of disturb elimination is given.
Thirdly, The paper researches the on-line monitoring of grounding current
in core and presents the new method that adopts diverse long-string sensor.
The paper analyses the meaning of the implement of transformer
insulation faults diagnosis in the substation based on chromatogram of
transformer oil, the direction of transformer insulation faults diagnosis
technology and brings forward the on-line monitoring equipment which can
detect six gases dissolved in transformer oil, and is charactered with
infiltrative film. A great deal locale data proves the stabilization of this
system.
The paper studies the method and principle of multi-parameter on-line
monitoring system and application of main transformer insulation for Basha
220kv transformer substation in Yibin. The system can reflect the actual state,
and can become the warrant of condition service.
通过对主变压器套管介损在线监测原理及应用的研究，提出了以电流和电压过零相位差为原理的在线监测介损的方法，分析了产生误差的原因及系统干扰的来源，提出了适合现场实际的抗干扰的方法，通过现场实测数据说明了变压器套管介损在线监测系统可行性。
通过对变压器局部放电的在线监测原理及方法的研究，提出了有高频谐振电流传感器、抗干扰调节系统及信号采集系统组成的局部放电在线监测方案，并分析了抑制干扰的方法。
通过对主变铁芯接地电流的在线监测技术的研究，提出了采用不同档次长线传感器在线监测铁芯接地电流的新方法。
通过对主变油中六种溶解气体在线监测原理及应用的研究，提出了以渗透膜、多传感气敏元件检测油中多种气体为特征的变压器油中六种溶解气体色谱在线监测方法，通过现场实测数据分析了其运行的稳定性与可靠性。
论文通过对宜宾白沙220KV变电站主变压器实施多参量在线监测原理及方法的研究，为无人职守站的推广应用和及主变压器在线监测装置做出了实际尝试。整体装置的现场运行表明：该系统运行稳定、数据可靠，具备在线监测的能力，可作为变压器状态检修的依据。
Main transformer is most costly and easily goes wrong. The security and
reliability of the power system is directly influenced by its reliability. The
monitoring and diagnosis of transformer is necessarily reinforced.
The paper presents the method and principle of on-line monitoring of
dielectric loss based on the theory of phasic difference which current and
voltage pass zero. As the same time, it analyzes data measured in the
substation and the reason of error.
Secondly, The paper studies the method and principle of on-line
monitoring of partial discharge and presents the monitoring project base on the
system which includes high frequency syntonic sensor, anti-jamming control
and signal sampling. The method of disturb elimination is given.
Thirdly, The paper researches the on-line monitoring of grounding current
in core and presents the new method that adopts diverse long-string sensor.
The paper analyses the meaning of the implement of transformer
insulation faults diagnosis in the substation based on chromatogram of
transformer oil, the direction of transformer insulation faults diagnosis
technology and brings forward the on-line monitoring equipment which can
detect six gases dissolved in transformer oil, and is charactered with
infiltrative film. A great deal locale data proves the stabilization of this
system.
The paper studies the method and principle of multi-parameter on-line
monitoring system and application of main transformer insulation for Basha
220kv transformer substation in Yibin. The system can reflect the actual state,
and can become the warrant of condition service.
引文
[1] 吴竞昌等，电力系统谐波，北京，水利电力出版社，1988．11
[2] 赵秀山等，介质损耗角的数字化测量，《清华大学学报》，1996年36卷第9期
[3] 廖瑞金等， 电力系统暂动态谐波在线监测原理及设计，《高压电器》，1998．3
[4] 陶德光等编著，数字信号处理原理及应用，四川大学出版社，1991．7
[5] 陆廷信编，供电系统中的谐波分析测量与抑制，机械工业出版社，1990．8
[6] 葛景滂等，局部放电测量，机械工业出版社，1984
[7] 孙才新、廖瑞金等，变压器油中溶解气体在线监测的研究，电工技术学报，1996，NO．2
[8] 罗兵、孙才新等，局部放电在线监测的电磁干扰及抑制方法，高压电器，1995，NO．3
[9] 唐炬、孙才新等，微机在线测量高压电容型设备介质损耗的方法和误差分析，CSEE，1995
[10] G. C. Stone. Practical techniques for measuring partial discharge in operating equipment. IEEE Electrical Insulation Magazine, 1991. 7(4): 9～19
[11] R. Malewski et. al. Insulation diagnostic system for HV power transformer in service. CIGRE, 1986 Session, No. 12-01
[12] H. Kawada et. al. Partial discharge automatic monitor for oil-filled power transformer. IEEE, Trans. 1984, Vol. PAS-103(2): 422～482
[13] 操敦奎，变压器油中溶解气体分析与诊断，中国水利电力企业管理协会、武汉电力企业管理协会，1987．10
[14] 魏新劳、韩树耶，过零时间差法介质损失角正切测量技术，哈尔滨电工学院学报，1995．3
[15] 姚文冰、马治亮等，变电站一次设备绝缘在线监测系统研究，高电压技术，1996，22(3)
[16] 王昌长、李福祺 编著，电力设备的在线监测与故障诊断，清华大学电机工程与应用电子技术系自编教材，1996．5
[17] 电力部电力科学研究院，《1984-1986年110KV及以上等级变压器事故统计分析》，1987．7
[18] 电力部电力科学研究院，《1990年全国110KV及以上电压等级变压器类设备事故统计分析》，1991．10
[19] 陈宗穆，高压电流互感器的可靠性数据统计分析，湖南大学学报，1990．15(5)：219～225
[20] 王昌长、郑光辉、郑振中，电力电容器的可靠性评估和失效分析，清华大学学报，1991．31
[21] 电力部，电力设备预防性试验规程，中国电力出版社，1997．4
[22] Allan D et al. New techniques for monitoring the insulation quality f in-service HV apparatus. IEEETrans. EI, 1993, 27 (3): 578
[23] Sam J. Ferrito. A Comparative study of dissolved gas analysis techniques: The vacuum extraction method versus the direct injection method. IEEE Trans. On Power Delivery. 1990, 5(1): 220～225.
[24] Yasuo lnoue et. al. Development of oil -dissolved hydrogen gas detector for diagnoses of
transformers IEEE. Trans.on PWRD 1990． 5(1) : 226-232．
[25] Y. Tanaka et. al Development of diagnostic instrument by acetylene and hydrogen gas detector for oil-filled equipment. Research report. Nissin Electric Co., Ltd., Japan 1993．
[26] Xue Wude et. al., A study of the measuring technique for micro-gas concentration dissolved in the Trans-former oil, proceedings of 1994 International Joint Conference, Sept.26-30 1994,pp439-442． Osaka, Japan.
[27] H. Tsukioka, K. Sugawara, Apparatus for continuously monitoring hydrogen gas dissolved in transformer oil, IEEE. Trans. EI, 1981,16(6) ; 502-509．
[28] H. Tsukioka, K. Sugawara. New apparatus for detecting H2,CO and CH4 dissolved in transformer oil, IEEE. Trans. On EI, 1983,18(4) . 409-419．
[29] H. Tsukioda, K. Sugawara. New Apparatus for detecting transformer faults. IEEE Trans. On EI,1986,21(2) :221~229．
[30] K. Feser et. al. On-line diagnostic system for monitoring the thermal behavior of transformers CIGRE Symposium Berlin 1993 No. 110-08．
[31] G. C. Stone. Practical techniques for measuring partial discharge in operating equipment. IEEE Electrical Insulation Magazine,1991． 7(4) :9~19
[32] R.Malewski et al. Insulation diagnostic system for HV power transformer in service. CIGRE, 1986 Session, NO. 12-01
[33] H.Kawada et. al. Partial discharge automatica monitor for oil-filled power transformer. IEEE, Trans. 1984, Vol PAS-103(2) :422~482
[2] 赵秀山等，介质损耗角的数字化测量，《清华大学学报》，1996年36卷第9期
[3] 廖瑞金等， 电力系统暂动态谐波在线监测原理及设计，《高压电器》，1998．3
[4] 陶德光等编著，数字信号处理原理及应用，四川大学出版社，1991．7
[5] 陆廷信编，供电系统中的谐波分析测量与抑制，机械工业出版社，1990．8
[6] 葛景滂等，局部放电测量，机械工业出版社，1984
[7] 孙才新、廖瑞金等，变压器油中溶解气体在线监测的研究，电工技术学报，1996，NO．2
[8] 罗兵、孙才新等，局部放电在线监测的电磁干扰及抑制方法，高压电器，1995，NO．3
[9] 唐炬、孙才新等，微机在线测量高压电容型设备介质损耗的方法和误差分析，CSEE，1995
[10] G. C. Stone. Practical techniques for measuring partial discharge in operating equipment. IEEE Electrical Insulation Magazine, 1991. 7(4): 9～19
[11] R. Malewski et. al. Insulation diagnostic system for HV power transformer in service. CIGRE, 1986 Session, No. 12-01
[12] H. Kawada et. al. Partial discharge automatic monitor for oil-filled power transformer. IEEE, Trans. 1984, Vol. PAS-103(2): 422～482
[13] 操敦奎，变压器油中溶解气体分析与诊断，中国水利电力企业管理协会、武汉电力企业管理协会，1987．10
[14] 魏新劳、韩树耶，过零时间差法介质损失角正切测量技术，哈尔滨电工学院学报，1995．3
[15] 姚文冰、马治亮等，变电站一次设备绝缘在线监测系统研究，高电压技术，1996，22(3)
[16] 王昌长、李福祺 编著，电力设备的在线监测与故障诊断，清华大学电机工程与应用电子技术系自编教材，1996．5
[17] 电力部电力科学研究院，《1984-1986年110KV及以上等级变压器事故统计分析》，1987．7
[18] 电力部电力科学研究院，《1990年全国110KV及以上电压等级变压器类设备事故统计分析》，1991．10
[19] 陈宗穆，高压电流互感器的可靠性数据统计分析，湖南大学学报，1990．15(5)：219～225
[20] 王昌长、郑光辉、郑振中，电力电容器的可靠性评估和失效分析，清华大学学报，1991．31
[21] 电力部，电力设备预防性试验规程，中国电力出版社，1997．4
[22] Allan D et al. New techniques for monitoring the insulation quality f in-service HV apparatus. IEEETrans. EI, 1993, 27 (3): 578
[23] Sam J. Ferrito. A Comparative study of dissolved gas analysis techniques: The vacuum extraction method versus the direct injection method. IEEE Trans. On Power Delivery. 1990, 5(1): 220～225.
[24] Yasuo lnoue et. al. Development of oil -dissolved hydrogen gas detector for diagnoses of
transformers IEEE. Trans.on PWRD 1990． 5(1) : 226-232．
[25] Y. Tanaka et. al Development of diagnostic instrument by acetylene and hydrogen gas detector for oil-filled equipment. Research report. Nissin Electric Co., Ltd., Japan 1993．
[26] Xue Wude et. al., A study of the measuring technique for micro-gas concentration dissolved in the Trans-former oil, proceedings of 1994 International Joint Conference, Sept.26-30 1994,pp439-442． Osaka, Japan.
[27] H. Tsukioka, K. Sugawara, Apparatus for continuously monitoring hydrogen gas dissolved in transformer oil, IEEE. Trans. EI, 1981,16(6) ; 502-509．
[28] H. Tsukioka, K. Sugawara. New apparatus for detecting H2,CO and CH4 dissolved in transformer oil, IEEE. Trans. On EI, 1983,18(4) . 409-419．
[29] H. Tsukioda, K. Sugawara. New Apparatus for detecting transformer faults. IEEE Trans. On EI,1986,21(2) :221~229．
[30] K. Feser et. al. On-line diagnostic system for monitoring the thermal behavior of transformers CIGRE Symposium Berlin 1993 No. 110-08．
[31] G. C. Stone. Practical techniques for measuring partial discharge in operating equipment. IEEE Electrical Insulation Magazine,1991． 7(4) :9~19
[32] R.Malewski et al. Insulation diagnostic system for HV power transformer in service. CIGRE, 1986 Session, NO. 12-01
[33] H.Kawada et. al. Partial discharge automatica monitor for oil-filled power transformer. IEEE, Trans. 1984, Vol PAS-103(2) :422~482