一种智能电压核相及并列装置
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摘要
电力系统单一核相工作原理简单、重复性高,加之变电站距离较远,每年需耗费大量继保人员精力去完成该项工作,极大地增加了继保人员的工作量;电压切换装置的插件发生损坏时,会导致损坏插件所对应母线上的间隔二次电压不健全,影响保护正常运行。文章介绍了一种智能电压核相及并列装置,该装置与现有电压并列装置并列运行,能够实现在线电压核相功能,只需值班员将核相结果拍照发送给继保人员,继保人员对核相结果进行分析即可,避免了继保人员长途跋涉,足不出户就可以实现核相,减少了继保人员工作量、提高了工作效率;该装置还能够实现电压强制并列及电压强制切换功能,在电压并列装置插件损坏时,手动将强制并列、强制切换把手投上,保证电压输出正常,极大地方便了电压并列装置消缺过程,避免了传统消缺方法中电压二次线松动、二次线接错等造成的保护装置失压问题。该装置的使用将产生良好的经济效益及社会效益。
It is simple and high repeatability in signal voltage phase checking of power system,moreover,the far distance of transformer substations takes a lot of energy to complete this work every year,and greatly increases the workload of the relay protection personnel. The principle of only checking Voltage phase is simple,and it's high repeatability,and the distance from the substation is far away,which takes a lot of energy to complete this work every year,which greatly increases the workload of the relay protection personnel. When the plug-in of the voltage switching device is damaged,it will result in the secondary voltage on the bus is not perfect,which affects the relay protection device of normal operation. In this paper,an intelligent voltage phase checking and a parallel device are introduced. The device operates in parallel with the existing voltage parallel device. It can realize the function of the on-line voltage phase checking. It only needs the duty crew to photograph the results to the relay protection personnel. The results are soon analyzed,which reduces the workload and improves the work efficiency. The device can also implement the function of voltage forced paralleling and voltage forced switching. When the voltage parallel device plug-in is damaged,the handle will be manually paralleled and forced to switch to ensure the voltage output is normal and greatly bring convenience to eliminating the parallel device. It can avoid the loss of pressure caused by the looseness of the voltage secondary and the wrong connection of the secondary in the traditional methods,and so on. The use of the device will bring good economic and social benefits.
It is simple and high repeatability in signal voltage phase checking of power system,moreover,the far distance of transformer substations takes a lot of energy to complete this work every year,and greatly increases the workload of the relay protection personnel. The principle of only checking Voltage phase is simple,and it's high repeatability,and the distance from the substation is far away,which takes a lot of energy to complete this work every year,which greatly increases the workload of the relay protection personnel. When the plug-in of the voltage switching device is damaged,it will result in the secondary voltage on the bus is not perfect,which affects the relay protection device of normal operation. In this paper,an intelligent voltage phase checking and a parallel device are introduced. The device operates in parallel with the existing voltage parallel device. It can realize the function of the on-line voltage phase checking. It only needs the duty crew to photograph the results to the relay protection personnel. The results are soon analyzed,which reduces the workload and improves the work efficiency. The device can also implement the function of voltage forced paralleling and voltage forced switching. When the voltage parallel device plug-in is damaged,the handle will be manually paralleled and forced to switch to ensure the voltage output is normal and greatly bring convenience to eliminating the parallel device. It can avoid the loss of pressure caused by the looseness of the voltage secondary and the wrong connection of the secondary in the traditional methods,and so on. The use of the device will bring good economic and social benefits.
引文
[1]刘宾礼,刘德志,罗毅飞,等.基于电压电流的IGBT关断机理与关断时间研究[J].物理学报,2013,62(05):392-400.LIU Binli,LIU Dezhi,LUO Yifei,et al.Investigation into the turnoff mechanism and time of IGBT based on voltage and current[J].Acta Physics Sinica,2013,62(05):392-400.
[2]雷博,肖国春,吴旋律,等.单相全桥DC-AC电压逆变电路数字控制中的振荡现象分析[J].物理学报,2011,60(09):122-132.LEI Bo,XIAO Guochun,WU Xuanlv,et al.Analysis of the oscillation phenomena in digital controlled DC-AC H-bridge inverter[J].Acta Physics Sinica,2011,60(09):122-132.
[3]刘光晔,杨以涵.电力系统电压稳定与功角稳定的统一分析原理[J].中国电机工程学报,2013,33(13):135-149,17.LIU Guangye,YANG Yihan.Theoretical foundation of power system voltage and angle stability unified analysis[J].Proceedings of the CSEE,2013,33(13):135-149,17.
[4]苏文博.关于发电机组启动时核相方法的研究[J].电力建设,2003,24(08):51-54.SU Wenbo.Study on phase-check method during start-up of power generation unit[J].Electric Power Construction,2003,24(08):51-54.
[5]郭占伟,魏晓强,肖志刚,等.电压切换回路故障分析[J].继电器,2006,34(22):81-83.GUO Zhanwei,WEI Xiaoqiang,XIAO Zhigang,et al.Analysis of busbar secondary voltage selection route faults[J].Relay,2006,34(22):81-83.
[6]刘宾礼,唐勇,罗毅飞,等.基于电压变化率的IGBT结温预测模型研究[J].物理学报,2014,63(17):251-260.LIU Binli,TANG Yong,LUO Yifei,et al.Investigation of the prediction model of IGBT junction temperature based on the rate of voltage change[J].Acta Physics Sinica,2014,63(17):251-260.
[7]黄灿,郑建勇,梅军.基于FPGA的数字化变电站电压并列与切换设计[J].电力系统保护与控制,2010,38(22):196-199.HUANG Can,ZHENG Jianyong,MEI Jun.FPGA-based logical control strategy of voltage parallel and voltage switch in digital substation[J].Power System Protection and Control,2010,38(22):196-199.
[8]张耀洪,袁锋,岑林,等.考虑PT二次电压及刀闸辅助触点的电压并列判据[J].电力系统保护与控制,2011,39(15):137-140.ZHANG Yaohong,YUAN Feng,CEN Lin,et al.A new criterion for voltage juxtaposition considering the secondary voltage and auxiliary contact of PT disconnector[J].Power System Protection and Control,2011,39(15):137-140.
[9]严棋.继电保护二次电压切换的探讨[J].通信电源技术,2015,32(03):106-107,109.YAN Qi.Discussion of secondary voltage switching in relay protection[J].Telecom Power Technologies,2015,32(03):106-107,109.
[10]曾智锋,郭开禄,赵希斌.继电保护电压切换回路的改进[J].江西电力,2012,36(02):26-28,52.ZENG Zhifeng,GUO Kailu,ZHAO Xibin.Improvement of voltage switching circuit on relay protection[J].Jiangxi Electric Power,2012,36(02):26-28,52.
[11]吴杰余,陈德树,尹项根,等.电压切换的新方法研究[J].继电器,2002,30(09):39-42.WU Yujie,CHEN Deshu,YIN Xianggen,et al.A new method of voltage switching[J].Relay,2002,30(09):39-42.
[12]刘伟平.电压切换回路异常情况的分析[J].继电器,2007,35(06):71-73.LIU Weiping.Analysis of unusual situation of the voltage switching circuit[J].Relay,2007,35(06):71-73.
[13]刘家军,姚李孝,吴添森,等.基于电压型换流器电网间同期并列仿真研究[J].系统仿真学报,2011,23(03):528-535.LIU Jiajun,YAO Lixiao,WU Tiansen,et al.Simulation research on synchronization parallel between grids through VSC[J].Journal of System Simulation,2011,23(03):528-535.
[14]闫朝阳,吴晓雨,李建霞,等.电压型矩阵整流器解结耦矢量调制原理研究[J].太阳能学报,2017,38(12):3291-3301.YAN Chaoyang,WU Xiaoyu,LI Jianxia,et al.Research of modulation principle of DE-RE-coupling vector for voltage matrix rectifier[J].Acta Energiae Solaris Sinica,2017,38(12):3291-3301.
[15]谢禄波,李鹏翔.电压互感器一次绕组末端未接地的故障分析[J].电力大数据,2012,15(01):61-62.XIE Lubo,LI Pengxiang.Analysis of the ungrounded primary winding ending fault of voltage transfomer[J].Guizhou Electric Power Technology,2012,15(01):61-62.
[16]周学斌,李晓明,杨俊杰,等.一种连续供电系统双电源快速柔性切换方法[J].电测与仪表,2017,54(08):33-38.ZHOU Xuebin,LI Xiaoming,YANG Junjie,et al.Fast and flexible switching method for double power supply in continuous power supply system[J].Electrical Measurement&Instrumentation,2017,54(08):33-38.
[17]施永,杨向真,苏建徽,等.微网系统不平衡电压补偿控制策略[J].电力系统自动化,2017,41(23):96-102.SHI Yong,YANG Xiangzhen,SU Jianhui,et al.Compensation control strategy of unbalanced voltage for microgrid[J].Automation of Electric Power Systems,2017,41(23):96-102.
[18]王丹,柳依然,梁翔,等.直流配电网电压等级序列研究[J].电力系统自动化,2015,39(09):19-25,47.WANG Dan,LIU Yiran,LIANG Xiang,et al.DC distribution network voltage class series[J].Automation of Electric Power Systems,2015,39(09):19-25,47.
[19]吴志宇,温才权,全杰熊,等.厂站二次设备多电源切换回路的改造分析[J].广东电力,2016,29(07):97-100.WU Zhiyu,WEN Caiquan,QUAN Jiexiong,et al.Analysis on transformation of multi-power supply switching circuits of secondary equipment in power plants and stations[J].Guangdong Electric Power,2016,29(07):97-100.
[2]雷博,肖国春,吴旋律,等.单相全桥DC-AC电压逆变电路数字控制中的振荡现象分析[J].物理学报,2011,60(09):122-132.LEI Bo,XIAO Guochun,WU Xuanlv,et al.Analysis of the oscillation phenomena in digital controlled DC-AC H-bridge inverter[J].Acta Physics Sinica,2011,60(09):122-132.
[3]刘光晔,杨以涵.电力系统电压稳定与功角稳定的统一分析原理[J].中国电机工程学报,2013,33(13):135-149,17.LIU Guangye,YANG Yihan.Theoretical foundation of power system voltage and angle stability unified analysis[J].Proceedings of the CSEE,2013,33(13):135-149,17.
[4]苏文博.关于发电机组启动时核相方法的研究[J].电力建设,2003,24(08):51-54.SU Wenbo.Study on phase-check method during start-up of power generation unit[J].Electric Power Construction,2003,24(08):51-54.
[5]郭占伟,魏晓强,肖志刚,等.电压切换回路故障分析[J].继电器,2006,34(22):81-83.GUO Zhanwei,WEI Xiaoqiang,XIAO Zhigang,et al.Analysis of busbar secondary voltage selection route faults[J].Relay,2006,34(22):81-83.
[6]刘宾礼,唐勇,罗毅飞,等.基于电压变化率的IGBT结温预测模型研究[J].物理学报,2014,63(17):251-260.LIU Binli,TANG Yong,LUO Yifei,et al.Investigation of the prediction model of IGBT junction temperature based on the rate of voltage change[J].Acta Physics Sinica,2014,63(17):251-260.
[7]黄灿,郑建勇,梅军.基于FPGA的数字化变电站电压并列与切换设计[J].电力系统保护与控制,2010,38(22):196-199.HUANG Can,ZHENG Jianyong,MEI Jun.FPGA-based logical control strategy of voltage parallel and voltage switch in digital substation[J].Power System Protection and Control,2010,38(22):196-199.
[8]张耀洪,袁锋,岑林,等.考虑PT二次电压及刀闸辅助触点的电压并列判据[J].电力系统保护与控制,2011,39(15):137-140.ZHANG Yaohong,YUAN Feng,CEN Lin,et al.A new criterion for voltage juxtaposition considering the secondary voltage and auxiliary contact of PT disconnector[J].Power System Protection and Control,2011,39(15):137-140.
[9]严棋.继电保护二次电压切换的探讨[J].通信电源技术,2015,32(03):106-107,109.YAN Qi.Discussion of secondary voltage switching in relay protection[J].Telecom Power Technologies,2015,32(03):106-107,109.
[10]曾智锋,郭开禄,赵希斌.继电保护电压切换回路的改进[J].江西电力,2012,36(02):26-28,52.ZENG Zhifeng,GUO Kailu,ZHAO Xibin.Improvement of voltage switching circuit on relay protection[J].Jiangxi Electric Power,2012,36(02):26-28,52.
[11]吴杰余,陈德树,尹项根,等.电压切换的新方法研究[J].继电器,2002,30(09):39-42.WU Yujie,CHEN Deshu,YIN Xianggen,et al.A new method of voltage switching[J].Relay,2002,30(09):39-42.
[12]刘伟平.电压切换回路异常情况的分析[J].继电器,2007,35(06):71-73.LIU Weiping.Analysis of unusual situation of the voltage switching circuit[J].Relay,2007,35(06):71-73.
[13]刘家军,姚李孝,吴添森,等.基于电压型换流器电网间同期并列仿真研究[J].系统仿真学报,2011,23(03):528-535.LIU Jiajun,YAO Lixiao,WU Tiansen,et al.Simulation research on synchronization parallel between grids through VSC[J].Journal of System Simulation,2011,23(03):528-535.
[14]闫朝阳,吴晓雨,李建霞,等.电压型矩阵整流器解结耦矢量调制原理研究[J].太阳能学报,2017,38(12):3291-3301.YAN Chaoyang,WU Xiaoyu,LI Jianxia,et al.Research of modulation principle of DE-RE-coupling vector for voltage matrix rectifier[J].Acta Energiae Solaris Sinica,2017,38(12):3291-3301.
[15]谢禄波,李鹏翔.电压互感器一次绕组末端未接地的故障分析[J].电力大数据,2012,15(01):61-62.XIE Lubo,LI Pengxiang.Analysis of the ungrounded primary winding ending fault of voltage transfomer[J].Guizhou Electric Power Technology,2012,15(01):61-62.
[16]周学斌,李晓明,杨俊杰,等.一种连续供电系统双电源快速柔性切换方法[J].电测与仪表,2017,54(08):33-38.ZHOU Xuebin,LI Xiaoming,YANG Junjie,et al.Fast and flexible switching method for double power supply in continuous power supply system[J].Electrical Measurement&Instrumentation,2017,54(08):33-38.
[17]施永,杨向真,苏建徽,等.微网系统不平衡电压补偿控制策略[J].电力系统自动化,2017,41(23):96-102.SHI Yong,YANG Xiangzhen,SU Jianhui,et al.Compensation control strategy of unbalanced voltage for microgrid[J].Automation of Electric Power Systems,2017,41(23):96-102.
[18]王丹,柳依然,梁翔,等.直流配电网电压等级序列研究[J].电力系统自动化,2015,39(09):19-25,47.WANG Dan,LIU Yiran,LIANG Xiang,et al.DC distribution network voltage class series[J].Automation of Electric Power Systems,2015,39(09):19-25,47.
[19]吴志宇,温才权,全杰熊,等.厂站二次设备多电源切换回路的改造分析[J].广东电力,2016,29(07):97-100.WU Zhiyu,WEN Caiquan,QUAN Jiexiong,et al.Analysis on transformation of multi-power supply switching circuits of secondary equipment in power plants and stations[J].Guangdong Electric Power,2016,29(07):97-100.