WO2015078028A1 - 一种区域电网智能设备时间分析仪 - Google Patents

一种区域电网智能设备时间分析仪 Download PDF

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Publication number
WO2015078028A1
WO2015078028A1 PCT/CN2013/088472 CN2013088472W WO2015078028A1 WO 2015078028 A1 WO2015078028 A1 WO 2015078028A1 CN 2013088472 W CN2013088472 W CN 2013088472W WO 2015078028 A1 WO2015078028 A1 WO 2015078028A1
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Prior art keywords
time
module
test
ieee1588
power grid
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PCT/CN2013/088472
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English (en)
French (fr)
Inventor
魏勇
李俊刚
刘星
马仪成
郑拓夫
沈沉
胡源奇
史宏光
Original Assignee
许继电气股份有限公司
许昌许继软件技术有限公司
魏勇
李俊刚
刘星
马仪成
郑拓夫
沈沉
胡源奇
史宏光
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Publication of WO2015078028A1 publication Critical patent/WO2015078028A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • H04J3/0697—Synchronisation in a packet node
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0644—External master-clock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

Definitions

  • the invention belongs to the time peer test field of the power system regional power grid and the intelligent substation intelligent device, and specifically relates to a regional power grid intelligent equipment time analyzer.
  • the highest accuracy of time is 1 microsecond.
  • the clock synchronization function of the real-time relay protection control of the regional power grid and the intelligent substation basically adopts the IRIG-B code mode and the IEEE1588 mode.
  • the IEEE1588 protocol is a precision time protocol, which is very suitable for the implementation of the clock peer function of the regional power grid protection control function. If the intelligent device adopts the hardware-assisted time stamping method, the time and the same precision can reach sub-microseconds, fully satisfying the intelligent substation time. Peer accuracy requirements.
  • IEEE1588 precision time homology technology has just started to be applied in the power industry. Many domestic power secondary equipment manufacturers have successively launched IEEE1588 application research and product development. The power company also organized IEEE1588 product interoperability testing, but The IEEE1588 protocol conformance test for products supporting the IEEE1588 protocol has not been carried out, which is not conducive to the promotion and application of the IEEE1588 protocol in regional power grids and smart substation networks. In addition, in the functional test and performance test of products such as the main clock, switch and digital merging unit supporting the IEEE1588 protocol, the lack of a special IEEE1588 test instrument leads to the tester's low test efficiency, especially the abnormal test, the test case coverage. It is narrow and cannot fully test IEEE1588 products.
  • Time peer technology is the key supporting technology of regional power grid protection and control system, which is related to the reliability of network protection control function and the security of regional power grid operation.
  • the IRIG-B code pulse networking mode and the IEEE1588 high-precision network mode perform clock synchronization.
  • the test of the smart device clock peer performance generally adopts the network access detection mode, and adopts a universal imported instrument, which is complicated to use, high in cost, and cannot be carried out.
  • FAT and SAT have hidden hidden dangers for the safe operation of the power grid. Therefore, the current regional power grid and intelligent substation urgently need to be able to use in the IEEE1588 protocol conformance test and time performance index analysis and evaluation of smart devices, and meet the requirements of mobile test requirements. Analysis of the invention
  • the object of the present invention is to provide a regional power grid intelligent equipment time analyzer for solving the problem of current time-precision index analysis and evaluation of intelligent equipment in regional power grids and intelligent substations and the absence of a dedicated test analyzer in the field of IEEE 1588 protocol conformance testing.
  • a regional power grid intelligent device time analyzer comprising:
  • the time analysis main control module is used for transmitting and receiving IEEE1588 messages and other time performance data messages, analyzing and processing various forms of input and output signals, processing satellite clock signals, performing all IEEE1588 tests and time performance index analysis and evaluation operations;
  • An optical Ethernet communication module configured to output a second pulse time signal to the analysis main control module and send an IEEE1588 message timestamp information
  • Electrical Ethernet module for use as a debug interface for the time analyzer
  • a signal input/output module configured to input various forms of second pulse signals and IRIG-B signals to the analysis main control module
  • a satellite signal receiving module configured to receive an external satellite clock signal
  • the carrier clock module is used to track the external clock source and the clock signal output that guarantees stable accuracy for a specific time within the design time limit.
  • the analyzer also includes a display module for displaying time information and indicator information.
  • a second pulse signal line for outputting a second pulse time signal to the analysis main control module and a time communication line for transmitting IEEE1588 message time stamp information are disposed between the analysis main control module and the optical Ethernet communication module.
  • the time analysis master module includes interconnected DSPs and FPGAs.
  • the optical Ethernet communication modules are two.
  • the satellite signal receiving module is a GPS/Beidou satellite dual-channel clock signal adaptive receiving module.
  • the regional power grid intelligent equipment time analyzer of the invention supports the analysis and evaluation of the time peer precision index and the IEEE1588-conformity test, and can provide a convenient intelligent device time and peer index test instrument, effectively overcoming the time precision of the current regional power grid and intelligent substation intelligent equipment. Indicators and IEEE1588 product testing methods are insufficient, can not effectively carry out abnormal testing, test coverage is narrow, and the problem of mis-positioning during testing is difficult. It is applicable to regional power grids and smart substation-related smart devices, such as mergers, intelligent terminals, and IEEE1588 support. Switches, clock source devices, protection and control devices, etc., have important practical value.
  • FIG. 1 is a schematic diagram of a hardware component system of the present invention
  • FIG. 2 is a structural diagram of a system control software of the present invention
  • Figure 3 is a flow chart of the side test operation of the present invention.
  • FIG. 1 is a schematic diagram of a hardware component system of a regional power grid intelligent device time analyzer according to the present invention.
  • the analyzer adopts a modular design, including a hardware component structure of the analyzer and a software control system.
  • the analyzer includes an analysis master module and a connection thereto
  • the Ethernet module, the Ethernet module, the IRIG-B and the pulse clock of the IEEE1588 time-synchronous function are input and output modules, satellite signal receiving modules and transport clock modules in the form of optical and electrical BNC signals.
  • the specific analysis of each module is as follows:
  • the time analysis main control module is used for transmitting and receiving IEEE1588 messages and other time performance data messages, analyzing and processing input and output signals of various forms (mainly including optical signals and BNC electrical signals), processing satellite clock signals, and performing all IEEE1588 tests and Time performance indicator analysis and evaluation operations.
  • the optical Ethernet communication module is configured to output a second pulse time signal to the analysis main control module and send an IEEE1588 message time stamp information.
  • optical Ethernet communication modules with IEEE1588 time synchronization function which are connected with the analysis main control module, and serve as an IEEE1588 test interface of the time analyzer; each optical Ethernet communication module and the analysis main control module are provided.
  • the electrical Ethernet module is connected to the analysis main control module and is used as a debugging interface of the time analyzer.
  • the signal input/output module and the analysis main control module are connected through the European connector, and the time signal from the panel interface is level-converted and sent to the FPGA pin of the analysis main control module through the European connector for input to the analysis main control module.
  • the module can input light second pulse clock signal, BNC electric second pulse clock signal, light IRIG-B code clock signal, BNC electrical IRIG-B code clock signal, can output optical second pulse clock signal, BNC electric second pulse clock signal, optical IRIG-B code clock signal, optical second pulse clock signal, electrical BNC set frequency Square wave signal.
  • the module can simultaneously evaluate the comparison time index of 8 time input signals (6 BNC electrical signals and 2 optical signals), which is very suitable for multiple observation points in the regional network protection control system (such as the main transformer 3 side).
  • the frequency signal output by the device is multiplexed with the time signal output terminal, and the frequency output port is not separately set.
  • the satellite signal receiving module is a GPS/Beidou satellite dual-channel clock signal adaptive receiving module, and is connected to the analysis main control module for receiving an external satellite clock signal (GPS/Beidou).
  • GPS/Beidou an external satellite clock signal
  • the satellite model is selected, and different satellite clock signal inputs are tracked in different two-way satellite tracking modes, mainly including automatic optimization mode and manual designation mode, and the signal is sent to the analysis main control. Module.
  • the received GPS second pulse signal and serial time signal can also be sent to the main control module for processing by the DSP chip and the FPGA chip.
  • the transport clock module is connected to the analysis main control module.
  • the module is equipped with a large-capacity lithium battery.
  • the initial clock When the initial clock is tamed, it can track the high-precision external clock source. After a few hours, the transport clock enters a stable taming state.
  • Accuracy external clock source which guarantees clock signal output with stable accuracy at specific time within the design time limit, realizes high-precision mobile time performance test.
  • the analyzer also includes a display module for displaying time information and indicator information, including a 7-segment digital tube for time display and 9 LED indicators.
  • the time display digital tube displays the time of the "year, month and day” format from the GPS satellite signal.
  • the LED indicator shows GPS, Beidou, Tongyu, Failed, satellite signal second pulse, optical network port A master status, optical network port A slave Status, optical network port B master Status, optical network port B slave status, which means "GPS", “Beidou”, “Tong", “Alarm”, "1588 A clock master”, “1588 A clock slave”, “1588 B clock master”, “1588 B clock from", "PPS”.
  • the time analysis main control module mainly includes interconnected DSP and FPGA, and also includes SDRAM chip and FLASH chip memory.
  • the DSP chip adopts Texas Instruments' high-performance TMS320DM642A (main frequency 600M), and the FPGA chip adopts Xilinx's Spartan_3E series XC3S500E. With this architecture, the communication speed is fast and the system is stable and reliable.
  • the DSP chip has a time index analysis engine. All the tests and evaluations of the analyzer are controlled by the software control system on the supporting computer.
  • the time analysis engine execution module on the analyzer is responsible for the specific execution and real-time in the process. Data and execution results are passed to the control system for display or analysis.
  • the time analysis engine supports the IEEE1588-2008 standard and the IEEE C37.238 standard (IEEE1588 Prof ile) in the IEEE1588 protocol conformance test, and supports any intelligent device supporting the IEEE1588 protocol in the intelligent substation; following the time precision test, analysis and evaluation
  • the regional power grid and intelligent substation protection control function realizes the profile (mask) requirement for time accuracy index. Therefore, the time analyzer is suitable for the realization of network protection control functions of regional power grid and intelligent substation.
  • the physical layer chip of the optical Ethernet port of each optical Ethernet module with IEEE1588 time-synchronous function uses National's DP83640 chip, which can capture the accurate transmission or reception timing of IEEE1588 messages with a time-scale resolution of 8 ns. It can fully meet the test requirements of the intelligent device supporting IEEE1588 protocol in the intelligent substation; the general-purpose input and output pin GPI0 of the DP83640 chip can be defined as the second pulse output port of the chip clock, which is output to the FPGA pin in the test main control module, and tested. It can be used to monitor this second pulse.
  • the time difference between the rising edge of the second pulse and the rising edge of the second pulse of the IEEE1588 main clock is the clock deviation of the slave clock from the IEEE1588 master clock.
  • One RJ45 electrical Ethernet port is used as a test interface and can be connected to a personal computer network port.
  • the software control system on the supporting computer has a system parameter setting interface, an IEEE1588-based test interface, an IEEE1588 function test interface, an IEEE1588 performance test interface, a time-accuracy index analysis and evaluation interface, and a frequency.
  • the time performance index evaluation and analysis interface includes five time precision indicators such as TIE, MTIE, TDEV, ADEV, MDEV, etc. According to the preset regional grid time precision index profile, the analysis results are given and displayed in the form of graphical curves.
  • the frequency generator interface includes frequency setting, square wave amplitude and duty cycle setting.
  • the test case editor interface includes test case editing and more.
  • the control system has monitoring, control, configuration and statistical analysis functions. All conformance tests, functional tests and performance tests are carried out under the control of time test analysis software.
  • the editing functions in the time test analysis software include the test clock parameter editing function and the test case editing function; the test clock parameter editing function test engineer can configure the parameters of the two optical test ports; through the test case editing function, the test engineer can Edit your own test cases, not limited to software default test cases.
  • the performance test data can be transferred from the tester to the PC monitoring software and stored in a file on the hard disk.
  • test operation procedure of the time analyzer of the present invention is as follows:
  • Test environment preparation First connect the time analyzer and the device under test with the optical fiber, and connect the network port of the computer where the software is analyzed and the debugging electric port of the time analyzer. (2), select the test category;
  • test process information During the test, the tester sends the test process information to the IEEE1588 test analysis software. The entire test process can be monitored through a graphical interface. If necessary, user confirmation may be required to continue the test.
  • step (3) If you need to carry out the next test case, go to step (3), otherwise go to (7);
  • test report When all the test cases selected by the user are completed, a test report can be generated, which can be saved as an electronic document or printed.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electric Clocks (AREA)

Abstract

本发明公开了一种区域电网智能设备时间分析仪，包括分析主控模块及与其连接的具有 IEEE1588时间同步功能的以太网模块、电以太网模块、IRIG-B 及脉冲时钟以光及电气 BNC信号形式输入输出模块、卫星信号接收模块及搬运钟模块。本发明的区域电网智能设备时间分析仪支持时间同步精度指标分析评估和 IEEE1588一致性测试，可提供方便的智能装置时间同步指标测试仪器, 有效克服当前区域电网和智能变电站智能设备时间精度指标及 IEEE1588 产品测试手段不足，无法有效进行异常测试，测试覆盖面较窄，以及测试时错误定位困难等一系列难题，适用于区域电网及智能变电站相关智能设备，如合并器、智能终端、支持 IEEE1588交换机、时钟源设备、保护控制设备等，具有重要的实用价值。

Description

一种区域电网智能设备时间分析仪
技术领域
本发明属于电力系统区域电网及智能变电站智能设备的时间同歩测试领 域， 具体涉及一种区域电网智能设备时间分析仪。
背景技术
在区域电网及智能变电站过程层内， 时间同歩精度最高要求为 1 微秒。 现阶段， 区域电网及智能变电站的实时继电保护控制的时钟同歩功能基本采 用 IRIG-B码方式和 IEEE1588方式。
IEEE1588协议是精密时间协议， 非常适用于区域电网网络保护控制功能 的时钟同歩功能实现， 如果智能装置采用硬件辅助打时间戳的方法时间同歩 精度可以达到亚微秒， 完全满足智能变电站对时间同歩的精度要求。
IEEE1588精密时间同歩技术在电力行业内应用刚刚起歩， 国内多个电力 二次设备制造商都陆续开展了 IEEE1588的应用研宄和产品开发， 电力公司也 组织进行了 IEEE1588产品互操作性测试， 但尚未开展对支持 IEEE1588协议 的产品进行 IEEE1588规约一致性测试， 这不利于 IEEE1588协议在区域电网 和智能变电站网络的推广应用。 另外， 支持 IEEE1588协议的主钟、 交换机和 数字合并单元等产品的功能测试、 性能测试中， 因为缺乏专门的 IEEE1588测 试仪器， 导致测试工程师测试效率较低， 特别是无法进行异常测试， 测试案 例覆盖面较窄， 不能对 IEEE1588产品进行充分测试， 无法保证实现 IEEE1588 协议的产品的时间同歩可靠性， 为采用 IEEE1588同歩技术的区域电网及智能 变电站的运行带来了安全隐患。 时间同歩技术是区域电网网络保护控制系统的关键支撑技术， 关系着网 络保护控制功能实现的可靠性和区域电网运行的安全性。 目前主要采用
IRIG-B码脉冲组网方式和 IEEE1588高精度网络方式进行时钟同歩，对智能设 备时钟同歩性能的测试一般采用入网检测方式， 且采用通用的进口仪器， 使 用复杂， 成本高， 且无法开展 FAT及 SAT, 为电网的安全运行埋下了隐患， 因 此当前的区域电网和智能变电站急切需要能够在智能设备的 IEEE1588规约一 致性测试、 时间性能指标分析评估中使用， 且满足移动测试要求的时间分析 发明内容
本发明的目的是提供一种区域电网智能设备时间分析仪， 以解决目前在 区域电网和智能变电站的智能设备时间精度指标分析评估及 IEEE1588规约一 致性测试领域没有专用测试分析仪的问题。
为了实现以上目的， 本发明所采用的技术方案是： 一种区域电网智能设 备时间分析仪， 包括：
时间分析主控模块， 用于收发 IEEE1588报文及其它时间性能数据报文， 分析处理各种形式的输入输出信号， 处理卫星时钟信号， 进行所有 IEEE1588 测试及时间性能指标分析评估操作；
光以太网通信模块， 用于向分析主控模块输出秒脉冲时间信号和发送 IEEE1588报文时间戳信息；
电以太网模块， 用于作为该时间分析仪的调试接口；
信号输入输出模块， 用于向分析主控模块输入各种形式的秒脉冲信号及 IRIG-B信号； 卫星信号接收模块， 用于接收外部卫星时钟信号；
搬运钟模块， 用于跟踪外部时钟源及在设计时限内保证特定时间稳定精 度的时钟信号输出。
该分析仪还包括用于显示时间信息及指示灯信息的显示模块。
所述分析主控模块与光以太网通信模块之间设有用于向分析主控模块输 出秒脉冲时间信号的秒脉冲信号线和用于发送 IEEE1588报文时间戳信息的时 间通信线。
所述时间分析主控模块包括相互连接的 DSP和 FPGA。
所述光以太网通信模块为两个。
所述卫星信号接收模块为 GPS/北斗卫星双路时钟信号自适应接收模块。 本发明的区域电网智能设备时间分析仪支持时间同歩精度指标分析评估 和 IEEE1588—致性测试， 可提供方便的智能装置时间同歩指标测试仪器， 有 效克服当前区域电网和智能变电站智能设备时间精度指标及 IEEE1588产品测 试手段不足， 无法有效进行异常测试， 测试覆盖面较窄， 以及测试时错误定 位困难等一系列难题， 适用于区域电网及智能变电站相关智能设备， 如合并 器、 智能终端、 支持 IEEE1588交换机、 时钟源设备、 保护控制设备等， 具有 重要的实用价值。
附图说明
图 1是本发明的硬件组成系统原理图；
图 2是本发明系统控制软件结构图；
图 3是本发明侧测试操作流程图。
具体实施方式 下面结合附图及具体的实施例对本发明进行进一歩介绍。
如图 1 所示为本发明区域电网智能设备时间分析仪的硬件组成系统原理 图， 该分析仪采用模块化设计， 包括分析仪的硬件组成结构及软件控制系统， 从硬件组成结构来说， 该分析仪包括分析主控模块及与其连接的具有
IEEE1588时间同歩功能的以太网模块、 电以太网模块、 IRIG-B及脉冲时钟以 光及电气 BNC信号形式输入输出模块、 卫星信号接收模块及搬运钟模块， 各 模块的具体分析如下：
时间分析主控模块， 用于收发 IEEE1588报文及其它时间性能数据报文， 分析处理各种形式 （主要包括光信号及 BNC 电气信号） 的输入输出信号， 处 理卫星时钟信号， 进行所有 IEEE1588测试及时间性能指标分析评估操作。
光以太网通信模块， 用于向分析主控模块输出秒脉冲时间信号和发送 IEEE1588报文时间戳信息。
本实施例具有 IEEE1588时间同歩功能的光以太网通信模块为两个， 与分 析主控模块相连， 作为时间分析仪的 IEEE1588测试接口； 各光以太网通信模 块与分析主控模块之间均设有： 1)秒脉冲信号线， 用于此太网通信模块向分析 主控模块输出秒脉冲时间信号； 2)时间通信线， 用于此以太网通信模块向分 析主控模块发送 IEEE1588报文时间戳信息。
电以太网模块与分析主控模块相连， 用于作为该时间分析仪的调试接口。 信号输入输出模块与分析主控模块通过欧式连接器相连， 来自面板接口 的时间信号经电平转换后通过欧式连接器送至分析主控模块的 FPGA引脚中， 用于向分析主控模块输入各种形式的非网络方式的秒脉冲信号及 IRIG-B 信 号， 该模块具体可以输入光秒脉冲时钟信号、 BNC 电气秒脉冲时钟信号、 光 IRIG-B码时钟信号、 BNC电气 IRIG-B码时钟信号， 可以输出光秒脉冲时钟信 号、 BNC电气秒脉冲时钟信号、 光 IRIG-B码时钟信号、 光秒脉冲时钟信号、 电气 BNC设定频率方波信号。该模块最多可以同时对 8路时间输入信号（6路 BNC电气信号及 2路光信号）进行比对性时间指标评估， 非常适合于区域网络 保护控制系统中多个观测点 （如主变 3侧差动数据的同歩） 的时间同歩性能 评测， 并输出由分析主控模块发送来的各种时间信号 （当被定义为频率发生 器时， 输出设定频率的方波信号）， 频率发生器输出的频率信号和时间信号输 出端子复用， 不单独设置频率输出端口。
卫星信号接收模块为 GPS/北斗卫星双路时钟信号自适应接收模块， 与分 析主控模块相连， 用于接收外部卫星时钟信号 （GPS/北斗）。 能根据双路卫星 跟踪模式， 选定卫星型号， 在不同的双路卫星跟踪模式下， 跟踪不同的卫星 时钟信号输入， 主要包括自动优选模式和人工指定模式， 并将该信号发送至 分析主控模块。 还可以把接收到的 GPS秒脉冲信号和串口时间信号也送至主 控模块， 供 DSP芯片和 FPGA芯片处理。
搬运钟模块与分析主控模块相连， 该模块具备大容量锂电池， 在初始的 时钟驯服状态时， 能跟踪高精度的外部时钟源， 若干小时后， 搬运钟进入稳 定的驯服状态， 可脱离高精度外部时钟源， 在设计时限内保证特定时间稳定 精度的时钟信号输出， 实现高精度的移动方式时间性能测试。
该分析仪还包括用于显示时间信息及指示灯信息的显示模块， 包括时间 显示用的 7段数码管和 9个 LED指示灯。 时间显示数码管显示来自 GPS卫星 信号的 "年月日"格式的时间， LED指示灯显示 GPS、 北斗、 同歩、 失歩、 卫 星信号秒脉冲、光网口 A master状态、光网口 A slave状态、光网口 B master 状态、 光网口 B slave状态， 即分别指示 "GPS"、 "北斗"、 "同歩"、 "告警"、 " 1588 A钟主"、 " 1588 A钟从"、 " 1588 B钟主"、 " 1588 B钟从"、 "PPS"。
时间分析主控模块主要包括相互连接的 DSP和 FPGA, 还包括 SDRAM芯片 和 FLASH 芯片的存储器。 DSP 芯片采用德州仪器公司的高性能 TMS320DM642A (主频 600M)， FPGA 芯片采用赛灵思公司的 Spartan_3E 系列 XC3S500E, 采用这种架构通信速度快、 系统稳定可靠。 DSP芯片内设时间指标 分析引擎， 本时间分析仪所有测试及评估分析都在配套的计算机上软件控制 系统的控制下， 由分析仪上的时间分析引擎执行模块负责具体执行并将过程 中的实时数据及执行结果传送至控制系统显示或分析。
时间分析引擎在 IEEE1588规约一致性测试方面支持 IEEE1588-2008标准 和 IEEE C37. 238标准（电力行业 IEEE1588 Prof ile)，支持智能变电站内任何 支持 IEEE1588协议的智能设备； 在时间精度测试、 分析评估方面遵循区域电 网及智能变电站保护控制功能实现对时间精度指标要求 profile (mask), 因 此该时间分析仪适用于区域电网及智能变电站网络保护控制功能的实现。
每个具有 IEEE1588时间同歩功能的光以太网模块的光以太网口的物理层 芯片采用美国国家半导体的 DP83640芯片， 可以捕获 IEEE1588报文的精确发 送或接收时标， 时标分辨率为 8ns， 可完全满足智能变电站内支持 IEEE1588 协议的智能装置的测试需求； 可定义 DP83640芯片的通用输入输出引脚 GPI0 为芯片时钟的秒脉冲输出口， 输出到测试主控模块中的 FPGA引脚中， 测试时 可用来监视此秒脉冲，例如此光网口作为从钟时，此秒脉冲上升沿与 IEEE1588 主钟的秒脉冲上升沿之间的时间差就是此从钟相对于 IEEE1588主钟的时钟偏 差。 1个 RJ45电以太网口用做测试接口， 可连接到个人计算机网口。 如图 2所示为配套的计算机上的软件控制系统， 主界面下设有系统参数设 置界面、 IEEE1588—致性测试界面、 IEEE1588功能测试界面、 IEEE1588性能 测试界面、 时间精度指标分析评估界面、 频率发生器设定界面、 测试案例编 辑器； IEEE1588—致性测试界面包括主钟一致性测试模块、 从钟一致性测试 模块、 透明时钟一致性测试模块； IEEE1588功能测试界面包括主钟功能测试 模块、 从钟功能测试模块、 透明时钟功能测试模块； IEEE1588性能测试界面 包括主钟性能测试模块、 从钟性能测试模块、 透明时钟性能测试模块。 时间 性能指标评估分析界面包括 TIE、 MTIE、 TDEV、 ADEV、 MDEV等 5项时间精度指 标， 根据预设的区域电网时间精度指标 profile, 给出分析结果， 并以图形化 曲线形式展示。 频率发生器界面包括频率设定、 方波幅值及占空比设定等。 测试案例编辑器界面包括测试案例编辑等。
该控制系统具有监视、 控制、 配置及统计分析功能， 所有的一致性测试、 功能测试和性能测试都在时间测试分析软件的控制下进行， 测试过程中可以 通过软件界面监视测试实时数据和整个测试过程。 时间测试分析软件中的编 辑功能包括测试钟参数编辑功能和测试案例编缉功能； 通过测试钟参数编缉 功能测试工程师可以配置 2个光测试口的参数； 通过测试案例编缉功能， 测试 工程师可以编辑自己设计的测试案例， 而不局限于软件默认的测试案例。 在 性能测试中， 性能测试数据可以由测试仪传输至 PC机监控软件， 并存储到硬 盘上的文件中。
如图 3所示，本发明时间分析仪的测试操作流程如下：
( 1 )、 测试环境准备： 首先用光纤连接时间分析仪和被测设备， 连接时间 分析分析软件所在计算机的网口和时间分析仪的调试电口。 (2)、 选择测试类别；
(3)、 在选定的测试类别中选择具体的测试案例；
(4)、 执行选定的测试案例： 在测试过程中， 测试仪把测试过程信息送 至 IEEE1588测试分析软件， 通过图形化界面可以监视整个测试过程， 必要时 可能需要用户确认使得测试继续进行。
(5)、 给出测试案例是否通过的结论： 测试完成后， 时间分析软件给出此 测试案例通过还是不通过的结论， 如果不通过， 给出此测试案例不能通过的 原因。
(6)、 如果需要进行下一个测试案例， 到歩骤 （3 )， 否则到 （7);
( 7)、 生成测试报告： 当用户选择的所有测试案例完成后， 产生一份测试 报告， 可以存为电子文档也可以打印。
以上内容是结合具体的优选实施方式对本发明所作的进一歩详细说明， 本发明的具体实施不局限于这些说明。 对于本发明所属技术领域的普通技术 人员来说， 在不脱离本发明构思的前提下做出若干等同替代， 而且性能或用 途相同， 则应当视为属于本发明所提交的权利要求书确定的保护范围。

Claims

权 利 要 求 书
1、 一种区域电网智能设备时间分析仪， 其特征在于， 包括：
时间分析主控模块， 用于收发 IEEE1588报文及其它时间性能数据报文， 分析处理各种形式的输入输出信号， 处理卫星时钟信号， 进行所有 IEEE1588 测试及时间性能指标分析评估操作；
光以太网通信模块， 用于向分析主控模块输出秒脉冲时间信号和发送 IEEE1588报文时间戳信息；
电以太网模块， 用于作为该时间分析仪的调试接口；
信号输入输出模块， 用于向分析主控模块输入各种形式的秒脉冲信号及 IRIG-B信号；
卫星信号接收模块， 用于接收外部卫星时钟信号；
搬运钟模块， 用于跟踪外部时钟源及在设计时限内保证特定时间稳定精 度的时钟信号输出。
2、 根据权利要求 1所述的区域电网智能设备时间分析仪， 其特征在于： 该分析仪还包括用于显示时间信息及指示灯信息的显示模块。
3、 根据权利要求 1所述的区域电网智能设备时间分析仪， 其特征在于： 所述分析主控模块与光以太网通信模块之间设有用于向分析主控模块输出秒 脉冲时间信号的秒脉冲信号线和用于发送 IEEE1588报文时间戳信息的时间通
4、 根据权利要求 1所述的区域电网智能设备时间分析仪， 其特征在于： 所述时间分析主控模块包括相互连接的 DSP和 FPGA。
5、 根据权利要求 3所述的区域电网智能设备时间分析仪， 其特征在于： 所述光以太网通信模块为两个。
6、 根据权利要求 1〜5任意一项所述的区域电网智能设备时间分析仪， 其特征在于： 所述卫星信号接收模块为 GPS/北斗卫星双路时钟信号自适应接 收模块。
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