基于数字物理混合仿真的电子式电压互感器暂态特性及其测试技术研究
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摘要
介绍了阻容分压电子式电压互感器的原理架构,分析了阻容分压电子式互感器经微分积分后的暂态传变特性。从继电保护应用的角度关注了电子式电压互感器的暂态传变特性对快速距离保护的影响。提出了一种基于数字物理混合仿真的电子式电压互感器暂态测试技术方案。采用数字仿真输出小电压信号再利用功率放大器将其放大,再搭建电子式电压互感器阻容分压的物理仿真平台,建立完整的测试系统。利用突变量检测确定初始时刻,同步采集模拟量原始电压信号与试品数字信号,进行暂态过程电子式电压互感器的暂态误差计算。通过开发的测试系统在实验室的应用,以验证测试技术方案的可行性。
According to the principle structure of the resistor-capacitor voltage-divided electronic voltage transformer, the transient transfer characteristics of the resistor-capacitor voltage-divided electronic transformer after differential integration are analyzed. With relay protection application, the influence of transient voltage transfer characteristics of electronic voltage transformer on fast distance protection is studied. A digital voltage transformer transient test technology scheme based on digital physics hybrid simulation is proposed. The small voltage signal is digitally simulated and amplified by a power amplifier. The physical simulation platform of the electronic voltage transformer resistance-capacitor voltage divider is built and a complete test system is established. The initial time is determined by the mutation detection, and the analog raw voltage signal and the digital signal of the sample are synchronously acquired, then, the transient error calculation of the electronic voltage transformer in the transient process is performed. The feasibility of the test technology solution is verified by the application of the developed test system in the laboratory.
According to the principle structure of the resistor-capacitor voltage-divided electronic voltage transformer, the transient transfer characteristics of the resistor-capacitor voltage-divided electronic transformer after differential integration are analyzed. With relay protection application, the influence of transient voltage transfer characteristics of electronic voltage transformer on fast distance protection is studied. A digital voltage transformer transient test technology scheme based on digital physics hybrid simulation is proposed. The small voltage signal is digitally simulated and amplified by a power amplifier. The physical simulation platform of the electronic voltage transformer resistance-capacitor voltage divider is built and a complete test system is established. The initial time is determined by the mutation detection, and the analog raw voltage signal and the digital signal of the sample are synchronously acquired, then, the transient error calculation of the electronic voltage transformer in the transient process is performed. The feasibility of the test technology solution is verified by the application of the developed test system in the laboratory.
引文
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[2]倪传坤,张克元,杨生苹,等.基于电子式互感器的R_L模型距离保护应用研究[J].电力系统保护与控制,2012,40(15):132-135.NI Chuankun,ZHANG Keyuan,YANG Shengping,et al.Application of R-L model distance protection based on ECT[J].Power System Protection and Control,2012,40(15):132-135.
[3]李长云,李庆民,李贞,等.直流偏磁和剩磁同时作用下保护用电流互感器的暂态特性研究[J].电力系统保护与控制,2010,38(23):107-111.LI Changyun,LI Qingmin,LI Zhen,et al.DC magnetic bias and remanence while under the effect of protection of transient characteristic of current transformer[J].Power System Protection and Control,2010,38(23):107-111.
[4]戴魏,郑玉平,白亮亮,等.保护用电流互感器传变特性分析[J].电力系统保护与控制,2017,45(19):46-54.DAI Wei,ZHENG Yuping,BAI Liangliang,et al.Analysis of protective current transformer transient response[J].Power System Protection and Control,2017,45(19):46-54.
[5]樊占峰,白申义,杨智德,等.光学电流互感器关键技术研究[J].电力系统保护与控制,2018,46(3):67-74.FAN Zhanfeng,BAI Shenyi,YANG Zhide,et al.Research on key technology of optical current transformer[J].Power System Protection and Control,2018,46(3):67-74.
[6]康小宁,张新,索南加乐,等.电压互感器和电流互感器暂态特性对距离保护算法的影响[J].西安交通大学学报,2006,40(8):955-960.KANG Xiaoning,ZHANG Xin,SUONAN Jiale,et al.Influence of transient characteristics of capacitor voltage transformer and current transformer on distance protection[J].Journal of Xi’an Jiaotong University,2006,40(8):955-960.
[7]ZHANG Baohui,HAO Zhiguo,BO Zhiqian.New development in relay protection for smart grid[J].Protection and Control of Modern Power Systems,2016,1(1):121-127.DOI:10.1186/s41601-016-0025-x.
[8]王佳颖,郭志忠,张国庆,等.电子式电压互感器暂态特性仿真与研究[J].电力自动化设备,2012,32(3):62-65.WANG Jiaying,GUO Zhizhong,ZHANG Guoqing,et al.Investigation and simulation of transient characteristics of electronic voltage transformer[J].Electric Power Automation Equipment,2012,32(3):62-65.
[9]张可畏,王宁,段雄英,等.用于电子式电流互感器的数字积分器[J].中国电机工程学报,2004,24(12):104-108.ZHANG Kewei,WANG Ning,DUAN Xiongying,et al.Digital integrator for electronic current transformer[J].Proceedings of the CSEE,2004,24(12):104-108.
[10]刘琦,徐雁,高飞,等.电子式电压互感器暂态响应的影响因素分析[J].电气工程学报,2015,10(10):37-43.LIU Qi,XU Yan,GAO Fei,et al.Simulation research on electronic voltage transformer transient process[J].Journal of Electrical Engineering,2015,10(10):37-43.
[11]赵勇,孔圣立,罗强,等.电子式电流互感器暂态传变延时测试技术研究[J].电力系统保护与控制,2014,42(17):125-130.ZHAO Yong,KONG Shengli,LUO Qiang,et al.Research on testing technology of ECT transmission delay time in transient state[J].Power System Protection and Control,2014,42(17):125-130.
[12]王佳颖,郭志忠,张国庆,等.电子式电压互感器暂态特性仿真与研究[J].电力自动化设备,2012,32(3):62-65,75.WANG Jiaying,GUO Zhizhong,ZHANG Guoqing,et al.Investigation and simulation of transient characteristics of electronic voltage transformer[J].Electric Power Automation Equipment,2012,32(3):62-65,75.
[13]李谦,张波,蒋愉宽,等.变电站内短路电流暂态过程及其影响因素[J].高电压技术,2014,40(7):1986-1993.LI Qian,ZHANG Bo,JIANG Yukuan,et al.Transient process of short-circuit current in substations and its influential factors[J].High Voltage Engineering,2014,40(7):1986-1993.
[14]互感器第八部分:电子式电流互感器:GB/T 20840.8[S].
[15]变电站通信网络和系统第9-1部分:特定通信服务映射-通过单向多路点对点串行通信链路的模拟量采样值:DL/T860.91[S].
[16]变电站通信网络和系统第9-2部分:特定通信服务映射-通过ISO8802-3的模拟量采样值:DL/T860.92[S].
[17]陶文伟,高红亮,杨贵,等.智能变电站过程层冗余组网模式及网络延时累加技术研究[J].电力系统保护与控制,2018,46(8):124-129.TAO Wenwei,GAO Hongliang,YANG Gui,et al.Research on redundant networking mode and network delay accumulation technology of smart substation process layer[J].Power System Protection and Control,2018,46(8):124-129.
[18]李澄,袁宇波,罗强.基于电子式互感器的数字保护接口技术研究[J].电网技术,2007,31(9):84-87.LI Cheng,YUAN Yubo,LUO Qiang.Research on interfacing technology for digital protection based on ECT/EVT[J].Power System Technology,2007,31(9):84-87.
[19]龚坚,彭晖,乔庐峰,等.标准802.3以太网MAC控制器的FPGA设计与实现[J].军事通信技术,2005(4):21-24.GONG Jian,PENG Hui,QIAO Lufeng,et al.FPGAdesign and implementation of standard 802.3 ethernet MAC controller[J].Journal of Military Communications Technology,2005(4):21-24.
[20]高吉普,徐长宝,王宇,等.光学电子式电压互感器暂态特性及其测试技术研究[J].电测与仪表,2016,53(4):84-89.GAO Jipu,XU Changbao,WANG Yu,et al.The optical electronic voltage transformer based on faraday magnetooptical theory[J].Electrical Measurement&Instrumentation.2016,53(4):84-89.
[21]徐长宝,高吉普,鲁彩江,等.适用电子式互感器的变压器保护磁通制动技术[J].电力系统保护与控制,2015,43(18):80-86.XU Changbao,GAO Jipu,LU Caijiang,et al.Flux restraint technology of transformer protection for electronic transformer[J].Power System Protection and Control,2015,43(18):80-86.