基于自适应采样算法及数据处理的过程层设备时延优化设计
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摘要
智能变电站与传统变电站相比,二次保护系统中增加了过程层设备合并单元及智能终端,引起了保护设备动作时间变慢。提出将合并单元的单一插值采样算法改为同步采样算法与插值算法相结合,基于同步状态自适应调整采样算法,减小了合并单元内部采样数据的处理时延。针对智能终端的CPU插件进行了改进,由FPGA完成GOOSE组播过滤、网络风暴功能,CPU负责处理GOOSE的接收与发送,同时采用MOSFET光电耦合继电器作为启动继电器,通过优化设计减少了智能终端的出口时间。基于上述设计,研制了新型过程层装置,并对比开展了动模仿真及静模仿真验证。仿真试验结果表明,新研制的过程层装置配合线路保护装置的整体动作时间相比优化前减少3 ms,能够满足GB/T-14285标准对继电保护装置整组动作时间的要求。
Compared with the traditional substation, the system has added the process layer equipment merging unit and the intelligent terminal, which causes the time of the protection equipment to move slowly. In this paper, a single interpolation sampling algorithm is proposed to combine the synchronous sampling algorithm with the interpolation algorithm. Based on synchronous state adaptive adjustment sampling algorithm, the processing delay of the internal sampling data is reduced. The CPU plug-in of the intelligent terminal is improved and the GOOSE multicast filtering and network is completed by FPGA. The function of the winding storm, CPU is responsible for the reception and transmission of GOOSE, and the MOSFET photoelectric coupling relay is used as the starting relay, and the exit time of the intelligent terminal is reduced by the optimization design. On this basis, a new process layer device is developed, and the dynamic model simulation and static model simulation are compared. The simulation test results show that the newly developed process layer device can reduce the 3 ms before optimizing the whole action time of the line protection device, and can meet the whole group action time of the GB/T-14285 standard for the relay protection device.
Compared with the traditional substation, the system has added the process layer equipment merging unit and the intelligent terminal, which causes the time of the protection equipment to move slowly. In this paper, a single interpolation sampling algorithm is proposed to combine the synchronous sampling algorithm with the interpolation algorithm. Based on synchronous state adaptive adjustment sampling algorithm, the processing delay of the internal sampling data is reduced. The CPU plug-in of the intelligent terminal is improved and the GOOSE multicast filtering and network is completed by FPGA. The function of the winding storm, CPU is responsible for the reception and transmission of GOOSE, and the MOSFET photoelectric coupling relay is used as the starting relay, and the exit time of the intelligent terminal is reduced by the optimization design. On this basis, a new process layer device is developed, and the dynamic model simulation and static model simulation are compared. The simulation test results show that the newly developed process layer device can reduce the 3 ms before optimizing the whole action time of the line protection device, and can meet the whole group action time of the GB/T-14285 standard for the relay protection device.
引文
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[14]刘昊昱,左群业,张保善.智能变电站过程层网络性能测试与分析[J].电力系统保护与控制,2012,40(18):112-116.LIU Haoyu,ZUO Qunye,ZHANG Baoshan.Process level network performance testing and analysis in smart substation[J].Power System Protection and Control,2012,40(18):112-116.
[15]黄灿,肖驰夫,方毅,等.智能变电站中采样值传输延时的处理[J].电网技术,2011,35(1):5-10.HUANG Can,XIAO Chifu,FANG Yi,et al.A method to deal with packet transfer delay of sampled value in smart substation[J].Power System Technology,2011,35(1):5-10.
[16]李文俊,程志伟,薛忠新,等.基于光纤通信的防越级跳闸方案设计和应用[J].电力系统保护与控制,2015,43(21):131-135.LI Wenjun,CHENG Zhiwei,XUE Zhongxin,et al.Design and application on preventing override trip system based on fiber-optic communication[J].Power System Protection and Control,2015,43(21):131-135.
[17]殷志良,刘万顺,杨奇逊,等.一种遵循IEC 61850标准的合并单元同步的实现新方法[J].电力系统自动化,2004,28(11):57-61.YIN Zhiliang,LIU Wanshun,YANG Qixun,et al.New method for implementing the synchronization of merging unit according to the IEC 61850 standard[J].Automation of Electric Power Systems,2004,28(11):57-61.
[18]吴涛,周有庆,曹志辉,等.新型电子式电压互感器及其误差分析[J].电网技术,2010,34(4):209-213.WU Tao,ZHOU Youqing,CAO Zhihui,et al.Anew type of electronic voltage transformer and its error analysis[J].Power System Technology,2010,34(4):209-213.
[19]杨锐.电子式电压互感器行波传变特性研究[D].济南:山东大学,2014.YANG Rui.The research on electronic voltage transducer’s transfer characteristics on travelling waves[D].Jinan:Shandong University,2014.
[20]易永辉,王雷涛,陶永健.智能变电站过程层应用技术研究[J].电力系统保护与控制,2010,38(21):47-50.YI Yonghui,WANG Leitao,TAO Yongjian.Process level application scheme in smart substation[J].Power System Protection and Control,2010,38(21):47-50.
[2]刘海峰,赵永生,李辉,等.基于全站同步时钟扩展装置的智能变电站同步整组试验方法的研究[J].电力系统保护与控制,2015,43(4):150-154.LIU Haifeng,ZHAO Yongsheng,LI Hui,et al.Study on the whole system synchronization testing method based on the clock extended device in smart substation[J].Power System Protection and Control,2015,43(4):150-154.
[3]张旭泽,郑永康,康小宁,等.智能变电站继电保护系统所面临的若干问题[J].电力系统保护与控制,2018,46(6):90-96.ZHANG Xuze,ZHENG Yongkang,KANG Xiaoning,et al.Several problems of intelligent substation relay protection system[J].Power System Protection and Control,2018,46(6):90-96.
[4]张炳达,王岚禹.基于FPGA的变电站实时仿真培训系统[J].电力系统保护与控制,2017,45(6):55-61.ZHANG Bingda,WANG Lanyu.Real-time simulation training system for substation based on FPGA[J].Power System Protection and Control,2017,45(6):55-61.
[5]胡宝,张文,李先彬,等.智能变电站嵌入式平台测试系统设计及应用[J].电力系统保护与控制,2017,45(10):129-133.HU Bao,ZHANG Wen,LI Xianbin,et al.Design and application of embedded platform test system in smart substation[J].Power System Protection and Control,2017,45(10):129-133.
[6]王超,王慧芳,张弛,等.数字化变电站继电保护系统的可靠性建模研究[J].电力系统保护与控制,2013,41(3):8-13.WANG Chao,WANG Huifang,ZHANG Chi,et al.Study of reliability modeling for relay protection system in digital substations[J].Power System Protection and Control,2013,41(3):8-13.
[7]张智锐,肖繁,焦邵麟,等.不同过程层网络结构的保护系统可靠性分析[J].电力系统保护与控制,2013,41(18):142-148.ZHANG Zhirui,XIAO Fan,JIAO Shaolin,et al.Reliability evaluation of protection relay system based on process layer network[J].Power System Protection and Control,2013,41(18):142-148.
[8]郭伟,张红超,于朝辉.电子式互感器模拟输出校准系统[J].电力系统保护与控制,2010,38(6):49-51.GUO Wei,ZHANG Hongchao,YU Zhaohui.A calibration system for electrical transformers with analog output[J].Power System Protection and Control,2010,38(6):49-51.
[9]乔洪新,黄少锋,刘勇.基于二次插值理论的电子式互感器数据同步的研究[J].电力系统保护与控制,2009,37(15):49-52.QIAO Hongxin,HUANG Shaofeng,LIU Yong.Discussion on data synchronization of electronic current transducer based on quadratic interpolation[J].Power System Protection and Control,2009,37(15):49-52.
[10]魏勇,罗思需,施迪,等.基于IEC61850-9-2及GOOSE共网传输的数字化变电站技术应用于分析[J].电力系统保护与控制,2010,38(24):146-152.WEI Yong,LUO Sixu,SHI Di,et al.Research and application on digital substation based on IEC61850-9-2and GOOSE communication in one network[J].Power System Protection and Control,2010,38(24):146-152.
[11]闫志辉,周水斌,郑拓夫.新一代智能站合并单元智能终端集成装置研究[J].电力系统保护与控制,2014,42(14):68-71.YAN Zhihui,ZHOU Shuibin,ZHENG Tuofu.Study of device with merging unit and intelligent terminal for new intelligent substation[J].Power System Protection and Control,2014,42(14):68-71.
[12]宴玲,李伟,曹津平.采用FPGA实现合并单元同步采样的方案[J].电力自动化设备,2010,30(10):126-128.YAN Ling,LI Wei,CAO Jinping.Synchronized sampling of merging unit with FPGA[J].Electric Power Automation Equipment,2010,30(10):126-128.
[13]倪兆瑞,王延安.智能变电站合并单元延时特性现场测试仪的设计[J].电力系统保护与控制,2014,42(10):119-124.NI Zhaorui,WANG Yanan.Design of field testing instrument for merging unit delay characteristics in smart substation[J].Power System Protection and Control,2014,42(10):119-124.
[14]刘昊昱,左群业,张保善.智能变电站过程层网络性能测试与分析[J].电力系统保护与控制,2012,40(18):112-116.LIU Haoyu,ZUO Qunye,ZHANG Baoshan.Process level network performance testing and analysis in smart substation[J].Power System Protection and Control,2012,40(18):112-116.
[15]黄灿,肖驰夫,方毅,等.智能变电站中采样值传输延时的处理[J].电网技术,2011,35(1):5-10.HUANG Can,XIAO Chifu,FANG Yi,et al.A method to deal with packet transfer delay of sampled value in smart substation[J].Power System Technology,2011,35(1):5-10.
[16]李文俊,程志伟,薛忠新,等.基于光纤通信的防越级跳闸方案设计和应用[J].电力系统保护与控制,2015,43(21):131-135.LI Wenjun,CHENG Zhiwei,XUE Zhongxin,et al.Design and application on preventing override trip system based on fiber-optic communication[J].Power System Protection and Control,2015,43(21):131-135.
[17]殷志良,刘万顺,杨奇逊,等.一种遵循IEC 61850标准的合并单元同步的实现新方法[J].电力系统自动化,2004,28(11):57-61.YIN Zhiliang,LIU Wanshun,YANG Qixun,et al.New method for implementing the synchronization of merging unit according to the IEC 61850 standard[J].Automation of Electric Power Systems,2004,28(11):57-61.
[18]吴涛,周有庆,曹志辉,等.新型电子式电压互感器及其误差分析[J].电网技术,2010,34(4):209-213.WU Tao,ZHOU Youqing,CAO Zhihui,et al.Anew type of electronic voltage transformer and its error analysis[J].Power System Technology,2010,34(4):209-213.
[19]杨锐.电子式电压互感器行波传变特性研究[D].济南:山东大学,2014.YANG Rui.The research on electronic voltage transducer’s transfer characteristics on travelling waves[D].Jinan:Shandong University,2014.
[20]易永辉,王雷涛,陶永健.智能变电站过程层应用技术研究[J].电力系统保护与控制,2010,38(21):47-50.YI Yonghui,WANG Leitao,TAO Yongjian.Process level application scheme in smart substation[J].Power System Protection and Control,2010,38(21):47-50.