WO2021147281A1 - 配电开关量化评估测试装置与方法 - Google Patents

配电开关量化评估测试装置与方法 Download PDF

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Publication number
WO2021147281A1
WO2021147281A1 PCT/CN2020/104355 CN2020104355W WO2021147281A1 WO 2021147281 A1 WO2021147281 A1 WO 2021147281A1 CN 2020104355 W CN2020104355 W CN 2020104355W WO 2021147281 A1 WO2021147281 A1 WO 2021147281A1
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WIPO (PCT)
Prior art keywords
switch
power distribution
master station
control master
waveform data
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PCT/CN2020/104355
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English (en)
French (fr)
Inventor
韩筛根
高昇宇
肖晶
高媛
贾勇勇
刘锋
薛琳
王春宁
张玮亚
王永强
杨景刚
朱孟周
王树刚
殷俊
Original Assignee
中国电力科学研究院有限公司
国家电网有限公司
国网江苏省电力有限公司南京供电分公司
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Publication of WO2021147281A1 publication Critical patent/WO2021147281A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3271Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
    • G01R31/3272Apparatus, systems or circuits therefor

Definitions

  • the present application relates to an evaluation and test system, for example, to a quantitative evaluation and test device and method for power distribution switches.
  • Distribution switchgear is an important part of the power system.
  • the performance quality of the distribution switch is directly related to the reliability and safety of the entire power grid and even the entire power system.
  • the separation type power distribution switch has seriously hindered the rapid development of smart grid construction. Therefore, it has overcome the separation type
  • the primary and secondary fusion of switch defects arises at the historic moment.
  • the transmission signals of the power distribution switches are more susceptible to electromagnetic fields and various environmental factors during the transmission process, which reduces the operational stability of the power distribution switch equipment.
  • the test system related to the stability of the switchgear is mainly an online monitoring system for faults and defects, which is a real-time monitoring and evaluation system after the switchgear has been put into operation. It is used to find faults and predict the time of occurrence of faults and defects, and then advance Arrange maintenance, but this is not suitable for the actual needs of accurately and efficiently selecting high-quality products from many manufacturers and many product batches, controlling the quality of switchgear, and ensuring the safe operation of the power grid from the source.
  • This application proposes a quantitative evaluation test device for power distribution switches, including:
  • Control master station switch controller, sensor; among them:
  • the switch controller is connected to the switch under test, and the switch controller is configured to control the opening and closing of the switch under test;
  • the sensor is connected to the switch controller, and the sensor is configured to collect waveform data generated when the switch under test is opened and closed, and transmit the waveform data to the control master station;
  • the switch controller and the sensor are both connected to the control master station, the control master station is set to control the opening and closing of the tested switch through the switch controller, and the control master station is also It is configured to collect the waveform data through the sensor, analyze based on the waveform data, judge the life trend of the switch characteristic parameters according to the analysis result, and perform a test according to the judgment result.
  • the present application also provides a method for quantitative evaluation and testing of the life of a power distribution switch, including;
  • the control master station controls the opening and closing of the tested switch through the switch controller
  • the sensor transmits the waveform data collected when the switch under test is opened and closed to the control master station;
  • the control master station analyzes the waveform data collected by the sensor, and judges the life trend of the switch characteristic parameters according to the analysis result;
  • the control master station performs the test according to the judgment result.
  • Figure 1 is a schematic diagram of a quantitative evaluation and testing device for power distribution switches provided by this application;
  • Figure 2 is a working block diagram of a quantitative evaluation and test system for power distribution switches provided by this application;
  • FIG. 3 is a functional block diagram of a switch controller for quantitative evaluation and testing of power distribution switches provided by this application;
  • Fig. 4 is a functional block diagram of a data acquisition device for quantitative evaluation and testing of power distribution switches provided by this application;
  • FIG. 5 is a flowchart of a method for quantitative evaluation and testing of power distribution switches provided by this application.
  • This application provides a quantitative evaluation test device for power distribution switches, as shown in FIG. 1.
  • control master station Including: control master station, switch controller, sensor; among them:
  • the control master station is connected to the switch controller and the sensor, and is used to control the opening and closing of the switch under test through the switch controller, and is also used to collect the waveform data of the waveform data through the sensor.
  • the analyzed waveform data result is used to judge the life trend of the switch characteristic parameters, and the test is carried out according to the judgment result;
  • the switch controller is connected to the switch under test, and is used to control the opening and closing of the switch under test by the master station through the switch controller;
  • the sensor is connected to the switch controller, and is used to transmit the waveform data collected when the switch under test is opened and closed to the control master station.
  • the system platform refers to a quantitative evaluation test device for power distribution switches.
  • the system platform is built based on system hardware equipment and system software.
  • the system ie, system platform
  • the system is mainly composed of automatic test and control systems for power distribution switches, and power distribution switches.
  • the system hardware mainly includes a control master station (industrial computer), a switch controller, a stroke sensor, a current sensor, a power distribution switch data acquisition device, and a photoelectric switch.
  • a control master station industrial computer
  • a switch controller a stroke sensor
  • a current sensor a current sensor
  • a power distribution switch data acquisition device a power distribution switch data acquisition device
  • a photoelectric switch a photoelectric switch
  • the control master station mainly realizes the overall control of the automatic test evaluation system, which runs through the entire test process;
  • the switch controller realizes the manual/automatic control operation of the power distribution switch by receiving the control information of the control master station, and controls "open", "close”, “open-close”, “close-open”, “open-close-open” "action;
  • the stroke sensor mainly realizes the stroke-time waveform acquisition of the opening and closing mechanism of the power distribution switch
  • the current sensor mainly realizes the acquisition of the current-time waveform of the opening and closing electromagnet coil of the power distribution switch tube, and the acquisition of the current-time waveform of the energy storage motor of the power distribution switch;
  • the power distribution switch data acquisition device mainly realizes the collection of the break time of the power distribution switch and the summary processing of the data of the current sensor and the travel sensor, and stores and manages the waveform data;
  • the photoelectric switch mainly transmits the collected power distribution switch signal data to the control master station, and also receives the control signal from the control master station, and transmits it to the switch controller to realize the switching control of the power distribution switch.
  • the system software may include automatic testing and control of power distribution switches, a data management module for power distribution switch action characteristics, a graphic analysis module, a key parameter extraction analysis module, a power distribution switch operation stability determination module, a power distribution switch operation life evaluation module, and There are seven modules in total for the test report output module. in:
  • the main function of the automatic test and control module is the preparation of automatic test plans, the setting of operating parameters and the execution of test plans;
  • the main function of the power distribution switch action characteristic data management module is the management of wave files, the management of characteristic parameter data and the management of the factory parameters of the test switch;
  • the main function of the graphic analysis module is to realize the preview of waveform files, mobile waveform comparison, waveform zoom and waveform measurement;
  • the main function of the key parameter extraction analysis module is to extract and analyze the characteristic parameters of the opening current curve, closing current curve and energy storage motor current curve of the distribution switch;
  • the main function of the power distribution switch operation stability judgment module is to realize the calculation of the correlation between the defect and the switch characteristic parameters, the statistics of the probability density distribution of the switch characteristic parameters, and the stability analysis of the switch characteristic parameters;
  • the main function of the power distribution switch operating life evaluation module is to realize the setting of the key parameter range, the fitting of the life curve trend of the switch characteristic parameters, and the judgment of the life trend of the switch characteristic parameters;
  • test report output module The main function of the test report output module is to automatically export the test data results and form a test report.
  • This application provides a quantitative evaluation and testing device for power distribution switches.
  • the evaluation and testing device is mainly constructed by a hardware system and a software system.
  • the working principle of the overall testing system is a working block diagram of a quantitative evaluation and testing system for power distribution switches. Refer to Figure 2.
  • the hardware equipment of the test system includes a control master station (industrial computer), a switch controller, a power distribution switch data acquisition device, a flexible encoder, a current sensor, and a photoelectric switch.
  • control master station The main function of the control master station is to realize the data management, calculation processing and control of the entire test system. Due to the large number of switch devices tested at the same time, the control master station industrial computer needs to have strong data processing capabilities to ensure the stability of the test system , MTTR, MTTF and other indicators of industrial computer need to meet certain technical requirements.
  • the working principle of the switch controller a functional block diagram of the switch controller for quantitative evaluation and testing of power distribution switches, please refer to Figure 3. It receives control signals and status signals to realize the delayed start, sub-control and close control of the switch equipment, and the switch control sequence
  • the accuracy is up to 0.05ms
  • the switch control response time is up to 1ms
  • the maximum off current of the loop is 30A;
  • the principle of a data acquisition device for power distribution switches a block diagram of a power distribution switch quantitative evaluation test data acquisition device for power distribution switches, please refer to Figure 4, the current signal is sampled by the current sensor, and the current sensor for operating the coil current meets the accuracy of 1%.
  • Full-scale sampling (sampling speed 10K, maximum sampling current 10A), the current sensor of the energy storage motor current meets the accuracy of 1%, the full-scale sampling is 500-2K, and the maximum sampling current is 10A; the mechanism stroke signal is sampled by the stroke sensor, and the laser Meet the simulation accuracy of 1%, full-scale 10K sampling, grating meets the resolution of 2500PPR, quadruple frequency encoder decoding, 10K sampling speed.
  • the photoelectric switch provides an exclusive signal path for the power distribution switch data acquisition device and the control master station, the switch controller and the control master station, and realizes the transmission of data and control signals.
  • Ethernet meets 100BASE-FX multi-mode ST interface, 10BASE-T/100BASE-TX RJ45 interface, RS485 bus meets baud rate 2400-115200bps, and can be connected to RS485 bus interface equipment.
  • the implementation steps can include step 1, step 2, step 3, and step 4;
  • step 1 includes:
  • the tester prepares the automatic test plan, sets the operating parameters and starts to execute the test plan through the automatic test and control module;
  • the switch controller operates the delayed start and switch control of the power distribution switchgear by receiving the control signal
  • Step 2 includes:
  • the third step the power distribution switch data acquisition device collects the action data of the switch equipment through the current sensor and the stroke sensor, and realizes the management of the current-time waveform and the travel-time waveform through the waveform file management function of the action characteristic data management module;
  • Step 3 includes:
  • the fourth step is to analyze the collected waveforms through the waveform file preview, moving waveform comparison, waveform zoom and waveform measurement functions of the graphic analysis module, and extract and analyze the key parameters of the power distribution switch through the key feature parameter extraction analysis module (among which ,
  • the key parameters of the power distribution switch can include the characteristic parameters of the opening curve, the characteristic parameters of the closing curve and the characteristic parameters of the energy storage motor), and the characteristic parameter data is put into the action characteristic data management module for management;
  • the fifth step is to perform statistics and fitting on the characteristic parameter data to realize the statistics of the probability density distribution of the switch characteristic parameters in the power distribution switch operation stability evaluation module and the trend of the switch characteristic parameter life curve in the power distribution switch operation life evaluation module. Fitting
  • the sixth step is to analyze the defect type and defect location of the switch, calculate the correlation between the defect and the switch characteristic parameter by the relation matrix method, obtain the weight coefficient of the key characteristic parameter, and combine the statistics of the probability density distribution of the switch characteristic parameter to realize the stability of the switch characteristic parameter Degree analysis;
  • the seventh step is to set the key parameter range and combine the fitting curve of the life curve trend of the switch characteristic parameters to realize the judgment of the life trend of the switch characteristic parameters;
  • Step 4 includes:
  • the eighth step is to determine whether the test plan is completed. If the test plan is not completed, turn back to the operation switch to continue the test process. If the test plan is completed, export the test data through the test report output module and print the test report, and the test ends.
  • this application also provides a method for quantitative evaluation and testing of the life of a power distribution switch, as shown in FIG. 5, which includes:
  • the control master station controls the opening and closing of the tested switch through the switch controller
  • the sensor transmits the waveform data collected when the switch under test is opened and closed to the control master station;
  • the control master station analyzes the waveform data collected by the sensor, and judges the life trend of the switch characteristic parameters according to the analysis result;
  • the control master station performs a test according to the judgment result.
  • control master station performs analysis according to the waveform data collected by the sensor, and performs judgment according to the life trend of the switch characteristic parameters according to the analysis result, including:
  • the control master station obtains the defect type and defect position of the switch by performing statistics, fitting and analysis on the collected waveforms and the key characteristic parameters of the power distribution switch;
  • the key parameter range is set, and the life trend of the switch characteristic parameter is judged in combination with the fitting curve of the life curve trend of the switch characteristic parameter.
  • the senor includes: a current sensor and a travel sensor;
  • the current sensor transmits the current-time waveform data of the opening and closing electromagnet coil of the power distribution switch tube and the current-time waveform data of the energy storage motor of the power distribution switch collected during the opening and closing of the tested switch to Said control master station;
  • the stroke sensor transmits the stroke-time waveform data of the opening and closing mechanism of the power distribution switch collected during the opening and closing of the tested switch to the control master station.
  • the current sensor collects the current-time waveform of the opening and closing electromagnet coil of the power distribution switch tube and the current-time of the energy storage motor of the power distribution switch collected when the switch under test is opened and closed.
  • the waveform data transmission to the control master station includes:
  • the current sensor transmits the collected current-time waveform data of the opening and closing electromagnet coils of the power distribution switch tube and the current-time waveform data of the energy storage motor of the power distribution switch to the power distribution switch data acquisition device;
  • the power distribution switch data acquisition device transmits the collected current-time waveform data of the opening and closing electromagnet coils of the power distribution switch tube and the current-time waveform data of the energy storage motor of the power distribution switch to the control master station.
  • the stroke sensor which transmits the stroke-time waveform data of the opening and closing mechanism of the power distribution switch collected during the opening and closing of the tested switch to the control master station, includes:
  • the stroke sensor transmits the collected stroke-time waveform data of the opening and closing mechanism of the power distribution switch to the power distribution switch data acquisition device;
  • the power distribution switch data acquisition device transmits the collected stroke-time waveform data of the power distribution switch opening and closing mechanism to the control master station.
  • the power distribution switch data acquisition device transmits the collected travel-time waveform data of the power distribution switch opening and closing mechanism to the control master station, including:
  • the power distribution switch data acquisition device transmits the collected travel-time waveform data of the opening and closing mechanism of the power distribution switch to the control master station through the photoelectric switch.
  • the method further includes:
  • it also includes:
  • it further includes: based on being installed in the control master station and cooperating with the control master station to complete the work.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • This application provides a device and method for quantitative evaluation and testing of power distribution switches.
  • a control master station a switch controller, and a sensor; wherein: the control master station is connected to the switch controller and the sensor, and is used to control the opening and closing of the switch under test through the switch controller, and It is used to collect the waveform data of the waveform data through the sensor, the analyzed waveform data result is used to judge the life trend of the switch characteristic parameters, and perform the test according to the judgment result; the switch controller is connected to the switch under test for The control master station controls the opening and closing of the switch under test through the switch controller; the sensor is connected to the switch controller and is used to transmit the waveform data collected during the opening and closing of the switch under test to the station.
  • the control master station mentioned above.
  • control master station can be used to realize the data management, calculation processing and control of the entire test system, which reduces the influence of human factors on the final evaluation results.
  • the evaluation of the operating reliability and operating life of the power distribution switch in this application is based on scientific theories, and is scientific, repeatable and traceable; it is based on the weight coefficients of characteristic parameters to evaluate the operating reliability and operation of the switchgear Life, it can accurately find out the short-board factors that affect product quality, and feedback to manufacturers for product improvement and upgrades; it can realize automatic evaluation and testing of the operating reliability and operating life of the power distribution switch, which does not require high requirements for testers, which reduces the test The labor cost of the test; in some embodiments, this application can simultaneously implement the evaluation and testing of 4 power distribution switchgears, and can simultaneously implement the evaluation and testing of up to 64 switchgears at the same time.
  • the efficiency is high and it meets the needs of many manufacturers and many High-quality and qualified switchgear is selected from the products for the needs of power grid construction; it can realize the evaluation and testing of the power distribution switchgear before it is officially put into operation, so as to ensure the safe and stable operation of the power grid from the source; this application has strong flexibility and versatility It is not only suitable for the evaluation and testing of primary and secondary integrated power distribution switchgear, but also for the testing of various action equipment.

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  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

一种配电开关量化评估测试装置与方法。装置包括控制主站、控制器和传感器。开关控制器和被测开关相连;传感器与开关控制器相连;开关控制器和传感器均与控制主站相连,控制主站被设置为通过开关控制器控制被测开关的开合闸,控制主站还被设置为通过传感器采集波形数据,根据分析结果对开关特征参数寿命趋势进行判断,并根据判断结果进行测试。

Description

配电开关量化评估测试装置与方法
本公开要求在2020年01月20日提交中国专利局、申请号为202010067343.5的中国专利申请的优先权,以上申请的全部内容通过引用结合在本公开中。
技术领域
本申请涉及一种评估测试系统,例如涉及一种配电开关量化评估测试装置与方法。
背景技术
配电开关设备是电力系统的重要组成部分,配电开关的性能质量直接关系到整个电网甚至整个电力系统的可靠性和安全性。相关技术中,分离式配电开关由于存在一二次设备接口不匹配,兼容性、扩展性、互换性差,设备凝露等问题,严重阻碍了智能电网建设的快速发展,因此,克服分离式开关缺陷的一二次融合配电开关设备应运而生。但是由于一二次融合配电开关中电子互感器的应用,导致配电开关的传输信号在传输过程中更容易受到电磁场和各种环境因素的影响,降低了配电开关设备的运行稳定性。
随着智能电网建设的快速发展,导致一二次融合配电开关设备的使用量大幅增加,对电网的安全运行带来了新的挑战。并且由于生产厂家众多,开关设备的性能质量良莠不齐,危及电网安全,亟需加强一二次融合配电开关质量管控。
相关技术中,配电开关的运行可靠性和运行寿命评估的研究主要集中在评估方法和故障缺陷监测系统的研究两大类,这些相关技术评估存在以下不足:
(1)配电开关的可靠性和寿命评估方法早期主要是人工定性评估法,这种评估方法主要依赖于人为主观感觉进行定性判断,对于测试人员的要求很高,判断结果容易受主观因素和客观因素影响,产生较大偏差;
(2)由于人工定性评估方式缺乏理论技术的支撑,不具备可复现性和可追溯性,针对这一问题,相关技术中的评估方法多为基于曲线拟合迭代的定性评估方法,虽然具有一定的科学性,但是缺乏自动化测试平台的建设,自动化程度不高,效率低下,不能满足配电开关设备大批量高效率测试的需求;
(3)相关技术中,开关设备稳定性相关的测试系统主要是故障缺陷的在线监测系统,是开关设备已经投运后实时监测评估系统,用于发现故障和预测故障缺陷出现的时间,然后提前安排检修,但这并不适合投运前需要在众多厂家、 众多产品批次中准确、高效地选取优良产品,管控开关设备质量,从源头上保证电网运行安全的现实需求。
发明内容
本申请提出一种配电开关量化评估测试装置,包括:
控制主站、开关控制器、传感器;其中:
所述开关控制器和被测开关相连,所述开关控制器被设置为控制所述被测开关的开合闸;
所述传感器与所述开关控制器相连,所述传感器被设置为采集所述被测开关的开合闸时产生的波形数据,并将所述波形数据传输给所述控制主站;
所述开关控制器和所述传感器均与所述控制主站相连,所述控制主站被设置为通过所述开关控制器控制所述被测开关的开合闸,所述控制主站还被设置为通过所述传感器采集所述波形数据,基于所述波形数据进行分析,根据分析结果对开关特征参数寿命趋势进行判断,并根据判断结果进行测试。
本申请还提供了一种配电开关寿命量化评估测试方法,包括;
控制主站通过开关控制器控制被测开关的开合闸;
传感器把所述被测开关的开合闸时所采集到的波形数据传输给所述控制主站;
所述控制主站根据所述传感器采集的波形数据进行分析,并根据分析结果对开关特征参数寿命趋势进行判断;
所述控制主站根据判断结果进行测试。
附图说明
图1为本申请提供的一种配电开关量化评估测试装置示意图;
图2为本申请提供的一种配电开关量化评估测试系统工作框图;
图3为本申请提供的一种配电开关量化评估测试开关控制器原理框图;
图4为本申请提供的一种配电开关量化评估测试配电开关数据采集装置原理框图;
图5为本申请提供的一种配电开关量化评估测试方法流程图。
具体实施方式
下面结合附图对本申请的具体实施方式做进一步的详细说明。
实施例1:
本申请采用如下技术方案:
本申请提供一种配电开关量化评估测试装置,如图1所示。
包括:控制主站、开关控制器、传感器;其中:
所述控制主站,与所述开关控制器和所述传感器相连,用于通过所述开关控制器控制被测开关的开合闸,还用于通过所述传感器采集波形数据的波形数据,所分析出的波形数据结果进行开关特征参数寿命趋势进行判断,并根据判断结果进行测试;
所述开关控制器,和被测开关相连,用于控制主站通过开关控制器控制被测开关的开合闸;
所述传感器,与所述开关控制器相连,用于把所述被测开关的开合闸时所采集到的波形数据传输给所述的控制主站。
系统平台表示一种配电开关量化评估测试装置,该系统平台基于系统硬件设备和系统软件共同搭建而成,该系统(即,系统平台)主要由配电开关自动测试与控制系统、配电开关动作特性数据采集系统、配电开关运行可靠性判定和运行寿命评估软件系统组成,其中,系统软件可以安装在系统硬件设备控制主站中。
所述系统硬件主要包括控制主站(工控机)、开关控制器、行程传感器、电流传感器、配电开关数据采集装置、光电交换机。其中:
控制主站主要实现自动测试评估系统的整体控制,贯穿整个测试流程的始终;
开关控制器通过接收控制主站的控制信息,实现配电开关的手动/自动控制操作,控制“分”、“合”、“分-合”、“合-分”、“分-合-分”动作;
行程传感器主要实现配电开关分、合闸机构的行程-时间波形采集;
电流传感器主要实现配电开关管分闸、合闸电磁铁线圈的电流-时间波形的采集、配电开关储能电机的电流-时间波形的采集;
配电开关数据采集装置主要实现配电开关断口时间的采集以及对电流传感器和行程传感器的数据进行汇总处理,存储、管理波形数据;
光电交换机主要将采集到的配电开关信号数据传输给控制主站,同时也接收来自控制主站的控制信号,传输给开关控制器实现配电开关的分合控制。
所述系统软件可以包括配电开关自动测试与控制、配电开关动作特性数据管理模块、图形分析模块、关键参量提取分析模块、配电开关运行稳定性判定模块、配电开关运行寿命评估模块和检测报告输出模块共七大模块。其中:
自动测试与控制模块的主要功能是自动测试计划的编制、操作参数的设置和测试计划的执行;
配电开关动作特性数据管理模块的主要功能是波形文件的管理、特征参数数据的管理和试验开关出厂参数的管理;
图形分析模块主要功能是实现波形文件的预览、移动波形对比、波形缩放和波形测量;
关键参数提取分析模块主要功能是实现配电开关分闸电流曲线、合闸电流曲线和储能电机电流曲线特征参量的提取和分析;
配电开关运行稳定性判定模块的主要功能是实现缺陷与开关特征参数相关度计算、开关特征参数概率密度分布统计和开关特征参数稳定度分析;
配电开关运行寿命评估模块的主要功能是实现关键参数范围的设定、开关特征参数寿命曲线趋势的拟合、开关特征参数寿命趋势的判断;
检测报告输出模块主要功能是实现将测试数据结果自动导出并形成检测报告。
本申请提供一种配电开关量化评估测试装置,所述评估测试装置,主要由硬件系统和软件系统共同构建而成,整体测试系统工作原理,一种配电开关量化评估测试系统工作框图,请参阅图2。
所述测试系统的硬件设备包括控制主站(工控机)、开关控制器、配电开关数据采集装置、柔性编码器、电流传感器和光电交换机。
控制主站主要功能是实现整个测试系统的数据管理、运算处理和控制,由于同时测试的开关设备台数较多,控制主站工控机需要具备较强的数据处理能力,为保障测试系统的稳定性,工控机的MTTR、MTTF等指标均需要满足一定技术要求。
开关控制器的工作原理,一种配电开关量化评估测试开关控制器原理框图,请参阅图3,其接收控制信号和状态信号以实现开关设备的延时启动、分控制和合控制,开关控制时序精度达到0.05ms,开关控制响应时间达到1ms,回路最大关断电流为30A;
配电开关数据采集装置的原理,一种配电开关量化评估测试配电开关数据 采集装置原理框图,请参阅图4,电流信号通过电流传感器进行采样,操作线圈电流的电流传感器满足精度1%,满量程采样(采样速度10K,最大采样电流10A),储能电机电流的电流传感器满足精度1%,满量程500-2K采样,最大值采样电流10A;机构行程信号通过行程传感器进行采样,其中激光满足模拟精度1%,满量程10K采样,光栅满足分辨率2500PPR,四倍频编码器解码,10K采样速度。
光电交换机为接入其中的配电开关数据采集装置与控制主站、开关控制器与控制主站提供独享的信号通路,实现数据和控制信号的传输。
设备之间的通讯方式支持以太网和RS485,以太网满足100BASE-FX多模ST接口,10BASE-T/100BASE-TX RJ45接口,RS485总线满足波特率2400-115200bps,可外接RS485总线接口设备。
结合软件系统,如图5所示,实施步骤可以包括步骤1、步骤2、步骤3和步骤4;
其中,步骤1包括:
第一步,测试人员通过自动测试与控制模块进行自动测试计划的编制、操作参数的设置并开始执行测试计划;
第二步,开关控制器通过接收控制信号,操作配电开关设备的延时启动和分合控制;
步骤2包括:
第三步,配电开关数据采集装置通过电流传感器和行程传感器采集开关设备的动作数据,并通过动作特性数据管理模块的波形文件管理功能实现对电流-时间波形和行程-时间波形的管理;
步骤3包括:
第四步,通过图形分析模块的波形文件预览、移动波形对比、波形缩放和波形测量功能对采集到的波形进行分析,并通过关键特征参数提取分析模块提取、分析配电开关的关键参数(其中,配电开关的关键参数可以包括分闸曲线特征参数、合闸曲线特征参数和储能电机特征参数),同时将特征参数数据放入动作特性数据管理模块中进行管理;
第五步,对特征参数数据进行统计、拟合,实现配电开关运行稳定性评估模块中的开关特征参数概率密度分布的统计和配电开关运行寿命评估模块中的开关特征参数寿命曲线趋势的拟合;
第六步,分析开关的缺陷类型和缺陷部位,通过关系矩阵法计算缺陷与开关特征参数的相关度,得到关键特征参数的权重系数,结合开关特征参数概率密度分布的统计,实现开关特征参数稳定度的分析;
第七步,设定关键参数范围,结合开关特征参数寿命曲线趋势的拟合曲线,实现开关特征参数寿命趋势的判断;
步骤4包括:
第八步,判断是否完成测试计划,若未完成测试计划,则转回操作开关继续执行测试流程,若已完成测试计划,则通过测试报告输出模块导出测试数据并打印测试报告,测试结束。
实施例2
基于同一发明构思,本申请还提供了一种配电开关寿命量化评估测试方法,如图5所示,包括;
控制主站通过开关控制器控制被测开关的开合闸;
传感器把被测开关的开合闸时所采集到的波形数据传输给所述的控制主站;
控制主站根据所述传感器采集的波形数据,进行分析,并根据所述分析结果,对开关特征参数寿命趋势进行判断;
控制主站根据所述判断结果,进行测试。
可选的,所述控制主站根据所述传感器采集的波形数据,进行分析,并根据所述分析结果,进行并根据开关特征参数寿命趋势进行判断,包括:
控制主站通过对采集到的波形和对配电开关的关键特征参数进行统计、拟合和分析,得出开关的缺陷类型和缺陷部位;
结合所述开关的缺陷类型和缺陷部位以及开关特征参数概率密度分布的统计的结果,对开关特征参数稳定度进行分析,得到所述稳定度的结果;
根据所述稳定度的结果,设定关键参数范围,结合开关特征参数寿命曲线趋势的拟合曲线,对开关特征参数寿命趋势进行判断。
可选的,所述传感器,包括:电流传感器和行程传感器;
所述电流传感器,把被测开关的开合闸时所采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给所述的控制主站;
所述行程传感器,把被测开关的开合闸时所采集到的配电开关分、合闸机构的行程-时间波形数据传输给所述的控制主站。
可选的,所述电流传感器,把被测开关的开合闸时所采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给所述的控制主站,包括:
所述电流传感器把通过采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给配电开关数据采集装置;
所述配电开关数据采集装置把采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给控制主站。
可选的,所述行程传感器,把被测开关的开合闸时所采集到的配电开关分、合闸机构的行程-时间波形数据传输给所述的控制主站,包括:
所述行程传感器把采集到的配电开关分、合闸机构的行程-时间波形数据传输给配电开关数据采集装置;
所述配电开关数据采集装置把采集到的配电开关分、合闸机构的行程-时间波形数据,传输给所述控制主站。
可选的,所述配电开关数据采集装置把采集到的配电开关分、合闸机构的行程-时间波形数据,传输给所述控制主站,包括:
所述配电开关数据采集装置把采集到的配电开关分、合闸机构的行程-时间的波形数据,通过光电交换机传输给所述控制主站。
可选的,所述根据所述分析结果,进行并根据开关特征参数寿命趋势进行判断之后,还包括::
通过测试报告输出模块导出测试数据。
可选的,还包括:
基于安装在所述控制主站中的系统软件配合所述控制主站完成工作。
可选的,还包括:基于安装在所述控制主站中,并配合所述控制主站完成工作。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品 的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
本申请提供了一种配电开关量化评估测试装置与方法。包括:控制主站、开关控制器、传感器;其中:所述控制主站,与所述开关控制器和所述传感器相连,用于通过所述开关控制器控制被测开关的开合闸,还用于通过所述传感器采集波形数据的波形数据,所分析出的波形数据结果进行开关特征参数寿命趋势进行判断,并根据判断结果进行测试;所述开关控制器,和被测开关相连,用于控制主站通过开关控制器控制被测开关的开合闸;所述传感器,与所述开关控制器相连,用于把所述被测开关的开合闸时所采集到的波形数据传输给所述的控制主站。
能够利用控制主站的主要功能实现整个测试系统的数据管理、运算处理和控制,降低了人为因素对于最终评估结果的影响。
本申请对于配电开关运行可靠性和运行寿命的评估以科学的理论为基础,具有科学性、可重复性和可追溯性;是基于特征参量的权重系数来评估开关设备的运行可靠性和运行寿命,可以准确找出影响产品质量的短板因素,反馈给厂家进行产品的改进和升级;可实现配电开关运行可靠性和运行寿命的自动评估测试,对于测试人员要求不高,降低了测试试验的人工成本;在一些实施例中,本申请可同时实现4台配电开关设备的评估测试,最高可同时实现64台开 关设备的评估测试,效率高,满足了需要快速从众多厂家、众多产品中遴选出优质合格的开关设备投入电网建设的需求;可实现配电开关设备正式投运前的评估测试,从源头上保障电网的安全稳定运行;本申请具有较强的灵活性和通用性,不仅适用于一二次融合配电开关设备的评估测试,也适用于各种动作类设备的测试。

Claims (14)

  1. 一种配电开关量化评估测试装置,包括:控制主站、开关控制器、传感器;其中:
    所述开关控制器和被测开关相连,所述开关控制器被设置为控制所述被测开关的开合闸;
    所述传感器与所述开关控制器相连,所述传感器被设置为采集所述被测开关的开合闸时产生的波形数据,并将所述波形数据传输给所述控制主站;
    所述开关控制器和所述传感器均与所述控制主站相连,所述控制主站被设置为通过所述开关控制器控制所述被测开关的开合闸,所述控制主站还被设置为通过所述传感器采集所述波形数据,基于所述波形数据进行分析,根据分析结果对开关特征参数寿命趋势进行判断,并根据判断结果进行测试。
  2. 根据权利要求1所述的装置,其中,所述传感器包括:电流传感器和行程传感器;
    所述电流传感器被设置为采集配电开关分闸、合闸电磁铁线圈的电流-时间波形数据和配电开关储能电机的电流-时间波形数据,并传输给所述控制主站;
    所述行程传感器被设置为采集配电开关分、合闸机构的行程-时间波形数据,并将采集到的波形数据传输给所述控制主站。
  3. 根据权利要求1所述的装置,所述装置还包括:配电开关数据采集装置,
    所述控制主站和所述传感器均与所述配电开关数据采集装置相连,所述配电开关数据采集装置被设置为采集配电开关断口时间,并对所述传感器的数据进行汇总处理,存储、管理波形数据;所述配电开关数据采集装置还被设置把采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形数据和配电开关储能电机的电流-时间波形数据以及配电开关分、合闸机构的行程-时间波形数据传输给所述控制主站。
  4. 根据权利要求1所述的装置,所述装置还包括:光电交换机,
    所述开关控制器和配电开关数据采集装置均与所述光电交换机相连接,所述光电交换机被设置为将采集到的配电开关信号数据传输给所述控制主站,并接收来自所述控制主站的控制信号,传输给所述开关控制器实现配电开关的分合控制。
  5. 根据权利要求1所述的装置,其中,所述传感器设有至少一组,每组所述传感器包括:三个电流传感器和一个行程传感器。
  6. 根据权利要求1所述的装置,其中,所述装置还包括:系统软件;
    所述系统软件设置于在所述控制主站中,所述系统软件被设置为配合所述控制主站完成工作。
  7. 一种配电开关寿命量化评估测试方法,包括;
    控制主站通过开关控制器控制被测开关的开合闸;
    传感器把所述被测开关的开合闸时所采集到的波形数据传输给所述控制主站;
    所述控制主站根据所述传感器采集的波形数据进行分析,并根据分析结果对开关特征参数寿命趋势进行判断;
    所述控制主站根据判断结果进行测试。
  8. 根据权利要求7所述的方法,所述控制主站根据所述传感器采集的波形数据进行分析,并根据分析结果对开关特征参数寿命趋势进行判断,包括:
    所述控制主站通过对采集到的波形和对所述配电开关的关键特征参数进行统计、拟合和分析,得出所述配电开关的缺陷类型和缺陷部位;
    结合所述配电开关的缺陷类型和缺陷部位以及开关特征参数概率密度分布的统计的结果,对开关特征参数稳定度进行分析,得到所述稳定度的结果;
    根据所述稳定度的结果,设定关键参数范围,结合开关特征参数寿命曲线趋势的拟合曲线,对开关特征参数寿命趋势进行判断。
  9. 根据权利要求7所述的方法,其中,所述传感器包括:电流传感器和行程传感器;
    所述方法还包括:
    所述电流传感器把被测开关的开合闸时所采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给所述控制主站;
    所述行程传感器把被测开关的开合闸时所采集到的配电开关分、合闸机构的行程-时间波形数据传输给所述控制主站。
  10. 如权利要求9所述的方法,其中,所述电流传感器把被测开关的开合闸时所采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给所述控制主站,包括:
    所述电流传感器把采集到的配电开关管分闸、合闸电磁铁线圈的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给配电开关数据采集装置;
    所述配电开关数据采集装置把采集到的配电开关管分闸、合闸电磁铁线圈 的电流-时间波形和配电开关储能电机的电流-时间波形数据传输给所述控制主站。
  11. 如权利要求9所述的方法,其中,所述行程传感器把被测开关的开合闸时所采集到的配电开关分、合闸机构的行程-时间波形数据传输给所述控制主站,包括:
    所述行程传感器把采集到的配电开关分、合闸机构的行程-时间波形数据传输给配电开关数据采集装置;
    所述配电开关数据采集装置把采集到的配电开关分、合闸机构的行程-时间波形数据,传输给所述控制主站。
  12. 如权利要求11所述的方法,其中,所述配电开关数据采集装置把采集到的配电开关分、合闸机构的行程-时间波形数据,传输给所述控制主站,包括:
    所述配电开关数据采集装置把采集到的配电开关分、合闸机构的行程-时间的波形数据,通过光电交换机传输给所述控制主站。
  13. 如权利要求7所述的方法,其中,所述根据分析结果对开关特征参数寿命趋势进行判断之后,所述方法还包括:
    通过测试报告输出模块导出测试数据。
  14. 根据权利要求7所述的方法,所述方法还包括:基于安装在所述控制主站中的系统软件配合所述控制主站完成工作。
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