CN107167686B - An intelligent substation merging unit testing supporting device - Google Patents
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Abstract
Description
技术领域technical field
本发明涉及变电站合并单元测试领域，具体地，涉及一种智能变电站合并单元测试配套装置。The invention relates to the field of substation merging unit testing, in particular to a matching device for intelligent substation merging unit testing.
背景技术Background technique
伴随着智能变电站的快速发展，新型智能设备成为智能变电站的重要组成部分。合并单元作为与测量、保护及控制设备之间衔接的信号采集装置更在智能变电站中广泛应用，因此也对合并单元的的测试提出了更高的要求。With the rapid development of smart substations, new smart devices have become an important part of smart substations. As a signal acquisition device connected with measurement, protection and control equipment, the merging unit is widely used in smart substations, so it also puts forward higher requirements for the test of the merging unit.
“十二五”期间，是智能变电站建设初期，由于当时电子式互感器、电子式合并单元开发还不成熟，电子式互感器本身采样精度、灵敏度受智能变电站现场环境条件影响，无法达到使用要求，因此在“十二五”期间新建的智能变电站大量采用的是传统互感器、传统合并单元。所谓传统合并单元，即是合并单元接收传统互感器的模拟量电压、电流信号，合并单元接收到模拟量后自身转变成数字量信号，将数字量信号发送到其他需要的智能设备。During the "Twelfth Five-Year Plan" period, it was the initial stage of the construction of smart substations. Due to the immature development of electronic transformers and electronic merging units at that time, the sampling accuracy and sensitivity of electronic transformers were affected by the on-site environmental conditions of smart substations and could not meet the requirements for use. Therefore, during the "Twelfth Five-Year Plan" period, a large number of new intelligent substations use traditional transformers and traditional merging units. The so-called traditional merging unit means that the merging unit receives the analog voltage and current signals of the traditional transformer, and after receiving the analog quantity, the merging unit converts itself into a digital signal, and sends the digital signal to other required smart devices.
为了对传统合并单元进行测试，研发出了传统合并单元测试仪，该类合并单元测试仪原理：合并单元测试仪输出的电流、电压模拟量信号作为标准源，将输出的电压、电流信号发送至传统合并单元，合并单元将模拟量信号转换成数字量信号后在发回至传统合并单元测试仪，传统合并单元将数字量信号与标准源模拟量进行精度、角差、比差的分析，完成对合并单元装置的测试。“十二五”建设期间，传统合并单元测试仪得到广泛的应用。In order to test the traditional merging unit, a traditional merging unit tester was developed. The principle of this type of merging unit tester: the current and voltage analog signals output by the merging unit tester are used as standard sources, and the output voltage and current signals are sent to the Traditional merging unit, the merging unit converts the analog signal into a digital signal and sends it back to the traditional merging unit tester. The traditional merging unit analyzes the digital signal and the standard source analog quantity for accuracy, angle difference and ratio difference Tests on merged unit installations. During the construction of the "Twelfth Five-Year Plan", traditional merged unit testers have been widely used.
然后随着智能电网技术的发展，电子式互感器、电子式合并单元技术已经成熟，在“十三五”期间，开始普遍采用电子式互感器、电子式合并单元。而对电子式合并单元的测试设备还没有成熟研发和应用，对电子式合并单元测试仪的研发将淘汰大量传统合并单元测试仪，而对电子式合并单元测试仪的研发难度大，时间长。Then with the development of smart grid technology, the technology of electronic transformers and electronic merging units has matured. During the "13th Five-Year Plan" period, electronic transformers and electronic merging units have been widely used. However, the test equipment for the electronic merging unit has not been developed and applied maturely. The research and development of the electronic merging unit tester will eliminate a large number of traditional merging unit testers, and the research and development of the electronic merging unit tester is difficult and time-consuming.
综上所述，本申请发明人在实现本申请发明技术方案的过程中，发现上述技术至少存在如下技术问题：To sum up, in the process of realizing the technical solution of the invention of the present application, the inventor of the present application found that the above-mentioned technology has at least the following technical problems:
在现有技术中，传统合并单元测试仪存在无法对电子式合并单元进行测试的技术问题。In the prior art, the traditional merging unit tester has the technical problem that the electronic merging unit cannot be tested.
发明内容SUMMARY OF THE INVENTION
本发明提供了一种智能变电站合并单元测试配套装置，解决了传统合并单元测试仪存在无法对电子式合并单元进行测试的技术问题，实现了利用现有传统合并单元测试仪完成对电子式合并单元进行快速可靠测试，合理节约利用原有资源的技术效果。The invention provides an intelligent substation merging unit testing supporting device, which solves the technical problem that the traditional merging unit tester cannot test the electronic merging unit, and realizes the use of the existing traditional merging unit tester to complete the electronic merging unit tester. Carry out fast and reliable tests, and reasonably save the technical effect of using original resources.
为解决上述技术问题，本申请提供了一种智能变电站合并单元测试配套装置，所述装置包括：In order to solve the above technical problems, the present application provides a smart substation merging unit testing supporting device, the device includes:
模拟量信号采集单元，用于采集合并单元测试仪输出的模拟量信号；The analog signal acquisition unit is used to collect the analog signal output by the combined unit tester;
模拟量信号采集单元，用于采集合并单元测试仪输出的模拟量信号；The analog signal acquisition unit is used to collect the analog signal output by the combined unit tester;
模拟量信号处理单元，用于对传统合并单元测试仪输出的交流电压、电流模拟量按照一定变比转换成4mA-20mA的小模拟量信号；The analog signal processing unit is used to convert the AC voltage and current analog output from the traditional merging unit tester into a small analog signal of 4mA-20mA according to a certain transformation ratio;
A/D采样单元，用于将4mA-20mA的小模拟量信号转换成按某一种(可选取不同厂家规约)规约的数字信号；The A/D sampling unit is used to convert the small analog signal of 4mA-20mA into a digital signal according to a certain (different manufacturer's protocol can be selected);
数字信号处理单元，用于将分相转换采集的数字信号进行整合处理，即将A、B、C相分别接入的电流和电压的数字信号整合在一个通信报文中，分别接入的A相电流和电压输出后电流和电压信息在一个数字通道中；The digital signal processing unit is used to integrate and process the digital signals collected by phase-split conversion. Current and voltage information in a digital channel after current and voltage output;
CPU电光转换单元，用于将整理好的数字报文信息发送。The CPU electro-optical conversion unit is used to send the sorted digital message information.
其中，本申请中智能变电站合并单元测试配套装置的原理为：装置将采集到传统合并单元测试仪作为标准源输出的电压、电流信息转换成可选择的厂家的通信协议的数字信息发送至数字式合并单元，合并单元收到数字式信息整理后反馈给传统合并单元测试仪，传统合并单元测试仪将收到的数字信息和自己作为标准源发出的模拟量信息进行比对以测试合并单元误差。Among them, the principle of the intelligent substation merging unit testing supporting device in this application is: the device converts the voltage and current information collected by the traditional merging unit tester as a standard source output into digital information of a selectable manufacturer's communication protocol and sends it to the digital Merging unit, the merging unit receives the digital information and then feeds it back to the traditional merging unit tester. The traditional merging unit tester compares the received digital information with the analog information sent by itself as a standard source to test the error of the merging unit.
进一步的，合并单元测试仪连接、模拟量信号采集单元、模拟量信号处理单元、A/D采样单元、数字信号处理单元、CPU电光转换单元依次连接，CPU电光转换单元与合并单元连接，合并单元与合并单元测试仪连接。Further, the merging unit tester is connected, the analog signal acquisition unit, the analog signal processing unit, the A/D sampling unit, the digital signal processing unit, and the CPU electro-optical conversion unit are sequentially connected, and the CPU electro-optical conversion unit is connected with the merging unit, and the merging unit Connect with the Merge Unit Tester.
进一步的，所述装置用于配合合并单元测试仪对电子式合并单元进行测试，装置用于将合并单元测试仪输出的标准电流、电压模拟量信息转换成电子式合并单元能够识别认可的数字量信息。Further, the device is used to cooperate with the merging unit tester to test the electronic merging unit, and the device is used to convert the standard current and voltage analog quantity information output by the merging unit tester into a digital quantity that the electronic merging unit can identify and approve. information.
进一步的，模拟量信号采集单元能够采集6路模拟量电压信号和6路模拟量电流信号。合并单元采集的信息有分别有A、B、C三相保护电流和保护电压，还有A、B、C三相测量电流和测量电压，所以总共需要采集6路模拟量电压信号和6路模拟量电流信号。Further, the analog signal acquisition unit can collect 6 channels of analog voltage signals and 6 channels of analog current signals. The information collected by the merging unit includes A, B, C three-phase protection current and protection voltage, and A, B, C three-phase measurement current and measurement voltage, so a total of 6 analog voltage signals and 6 analog voltage signals need to be collected. quantity current signal.
进一步的，CPU电光转换单元设有8路光口输出，数字信号处理时将分别采集的A、B、C相电压和电流整合为A、B、C三相通道和同期电压通道，每一相通道中包含了此相得电流电压信息，所以起码需要4路光口输出，同时多出4组光口进行冗余配置。Further, the CPU electro-optical conversion unit is provided with 8 optical port outputs. During digital signal processing, the A, B, and C phase voltages and currents collected respectively are integrated into A, B, and C three-phase channels and synchronous voltage channels. The channel contains this phase current and voltage information, so at least 4 optical ports are required for output, and 4 additional optical ports are required for redundant configuration.
进一步的，装置设有2路光口接收对时信号，装置需要与传统合并单元测试仪及合并单元装置在同一个时间坐标下进行数据分析，所以装置需要对时信号，设置时间信号接口，冗余一个。Further, the device is provided with 2 optical ports to receive timing signals, and the device needs to perform data analysis under the same time coordinate as the traditional merging unit tester and the merging unit device, so the device needs timing signals, a time signal interface is set, and redundant. One more.
进一步的，装置设有与操作系统相连的数据线接口、电源接口，装置具有强大的配置功能，需要数据线与客户端相连接；装置需要供电使用需要电源接口。Further, the device is provided with a data line interface and a power interface connected to the operating system, the device has a powerful configuration function, and requires a data line to be connected to the client; the device needs power supply and a power interface.
进一步的，装置能够配置模拟量电流、电压通道的精度等级，在写入FPGA程序时将保护通道精度等级要求和测量通道精度等级要求同时写入配置，在配置接口时接入的保护等级还是测量等级可根据接口选择配置。Further, the device can configure the accuracy level of the analog current and voltage channels. When writing the FPGA program, the protection channel accuracy level requirements and the measurement channel accuracy level requirements are written into the configuration at the same time, and the protection level accessed when configuring the interface is still measurement. The level can be configured according to the interface selection.
进一步的，装置能够自定义电流、电压选相通道，并能够定义光口输出选相。通道在写入FPGA程序时将接收电压还是电流A、B、C三相模拟量通道同时写入配置，在配置模拟量接收接口时接入的电压和电流A、B、C三相选择配置。同时输出光信号时可选择自定义8组光口中的任何一组光口输出选A、B、C其中的一相。Further, the device can customize the current and voltage phase selection channels, and can define the optical port output phase selection. When writing the FPGA program, the channel will receive voltage or current A, B, C three-phase analog channels into the configuration at the same time. When configuring the analog receiving interface, the voltage and current A, B, C three-phase selection configuration. When outputting optical signals at the same time, you can choose any one of the 8 groups of optical ports to output and select one phase among A, B, and C.
进一步的，装置能够选择电子式互感器类型，并能够选择电子式互感器厂家私有协议，并能够对厂家私有协议数据通道进行配置，并能够对系统参数(即频率、变比等)进行参数设置。Further, the device can select the type of electronic transformer, and can select the private protocol of the electronic transformer manufacturer, and can configure the data channel of the manufacturer's private protocol, and can set the parameters of the system parameters (ie frequency, transformation ratio, etc.). .
本申请提供的一个或多个技术方案，至少具有如下技术效果或优点：One or more technical solutions provided by this application at least have the following technical effects or advantages:
解决了传统合并单元测试仪存在无法对电子式合并单元进行测试的技术问题，实现了利用现有传统合并单元测试仪完成对电子式合并单元进行快速可靠测试，合理节约利用原有资源的技术效果。It solves the technical problem that the traditional merging unit tester cannot test the electronic merging unit, and realizes the technical effect of using the existing traditional merging unit tester to complete the fast and reliable testing of the electronic merging unit, and reasonably saving and utilizing the original resources. .
附图说明Description of drawings
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分，并不构成对本发明实施例的限定；The accompanying drawings described herein are used to provide further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute limitations to the embodiments of the present invention;
图1是本申请中装置与传统合并单元测试仪配合使用对电子式合并单元进行测试的连接示意图。FIG. 1 is a schematic diagram of the connection of the device in the present application and the conventional merging unit tester used in conjunction with the electronic merging unit to test.
具体实施方式Detailed ways
本发明提供了一种基于双目立体视觉的接触网几何参数检测测量系统，解决了现有的基于单目视觉的检测方法存在先天的误差的技术问题，实现了测量系统设计合理，几何参数检测测量结果准确的技术效果。The invention provides a catenary geometric parameter detection and measurement system based on binocular stereo vision, solves the technical problem of inherent errors existing in the existing detection method based on monocular vision, and realizes the reasonable design of the measurement system and the detection of geometric parameters. Accurate technical effects of measurement results.
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在相互不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other under the condition that they do not conflict with each other.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述范围内的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways that are different from the scope of this description. Therefore, the protection scope of the present invention is not subject to the following disclosure. The limitations of the specific embodiment.
请参考图1，本申请提供了本发明提供了一种智能变电站合并单元测试配套装置，解决了传统合并单元测试仪存在无法对电子式合并单元进行测试的技术问题，实现了利用现有传统合并单元测试仪完成对电子式合并单元进行快速可靠测试，合理节约利用原有资源的技术效果。Please refer to FIG. 1, the present application provides a smart substation merging unit testing supporting device, which solves the technical problem that the traditional merging unit tester cannot test the electronic merging unit, and realizes the use of the existing traditional merging unit. The unit tester completes the fast and reliable test of the electronic merging unit, and the technical effect of rationally saving and utilizing the original resources.
为解决上述技术问题，本申请提供了一种智能变电站合并单元测试配套装置，所述装置包括：In order to solve the above technical problems, the present application provides a smart substation merging unit testing supporting device, the device includes:
模拟量信号采集单元，用于采集合并单元测试仪输出的模拟量信号；The analog signal acquisition unit is used to collect the analog signal output by the combined unit tester;
模拟量信号处理单元，用于对传统合并单元测试仪输出的交流电压、电流模拟量按照一定变比转换成4mA-20mA的小模拟量信号；The analog signal processing unit is used to convert the AC voltage and current analog output from the traditional merging unit tester into a small analog signal of 4mA-20mA according to a certain transformation ratio;
A/D采样单元，用于将4mA-20mA的小模拟量信号转换成按某一种(可选取不同厂家规约)规约的数字信号；The A/D sampling unit is used to convert the small analog signal of 4mA-20mA into a digital signal according to a certain (different manufacturer's protocol can be selected);
数字信号处理单元，用于将分相转换采集的数字信号进行整合处理，即将A、B、C相分别接入的电流和电压的数字信号整合在一个通信报文中，分别接入的A相电流和电压输出后电流和电压信息在一个数字通道中；The digital signal processing unit is used to integrate and process the digital signals collected by phase-split conversion. Current and voltage information in a digital channel after current and voltage output;
CPU电光转换单元，用于将整理好的数字报文信息发送。The CPU electro-optical conversion unit is used to send the sorted digital message information.
其中，本申请中智能变电站合并单元测试配套装置的原理为：装置将采集到传统合并单元测试仪作为标准源输出的电压、电流信息转换成可选择的厂家的通信协议的数字信息发送至数字式合并单元，合并单元收到数字式信息整理后反馈给传统合并单元测试仪，传统合并单元测试仪将收到的数字信息和自己作为标准源发出的模拟量信息进行比对以测试合并单元误差。Among them, the principle of the intelligent substation merging unit testing supporting device in this application is: the device converts the voltage and current information collected by the traditional merging unit tester as a standard source output into digital information of a selectable manufacturer's communication protocol and sends it to the digital Merging unit, the merging unit receives the digital information and then feeds it back to the traditional merging unit tester. The traditional merging unit tester compares the received digital information with the analog information sent by itself as a standard source to test the error of the merging unit.
其中，本申请中的智能变电站合并单元测试配套装置具有如下特点：(1)配合传统合并单元测试仪对电子式合并单元进行测试。(2)装置可以将传统合并单元测试仪输出的标准电流、电压模拟量信息转换成电子式合并单元能够识别认可的数字量信息。(3)装置有6路模拟量电压采集、有6路模拟量电流采集。(4)装置有8路光口输出。(5)装置有2路光口接收对时信号。(6)装置有与操作系统相连的数据线接口、电源接口。(7)装置可以配置模拟量电流、电压通道的精度等级。(8)装置可自定义电流、电压选相通道。(9)装置可定义光口输出选相通道。(10)装置可选择电子式互感器类型。(11)装置可选择电子式互感器厂家私有协议。(12)装置可对厂家私有协议数据通道进行配置。(13)装置可对对系统参数、频率、变比等进行参数设置。Among them, the supporting device for testing the merging unit of the intelligent substation in the present application has the following characteristics: (1) Cooperate with the traditional merging unit tester to test the electronic merging unit. (2) The device can convert the standard current and voltage analog information output by the traditional merging unit tester into digital information that the electronic merging unit can recognize and approve. (3) The device has 6 channels of analog voltage acquisition and 6 channels of analog current acquisition. (4) The device has 8 optical port outputs. (5) The device has 2 optical ports to receive timing signals. (6) The device has a data line interface and a power interface connected with the operating system. (7) The device can configure the accuracy level of analog current and voltage channels. (8) The device can customize the current and voltage phase selection channels. (9) The device can define the optical port output phase selection channel. (10) The device can choose the type of electronic transformer. (11) The device can choose the private agreement of the electronic transformer manufacturer. (12) The device can configure the manufacturer's private protocol data channel. (13) The device can set parameters for system parameters, frequency, transformation ratio, etc.
设置传统合并单元测试仪的电流、电压输出通道，配置配套装置的电流电压、接收、系统参数设置、小模拟量变比设置、采样变比设置、频率、有效值、采样通道配置、互感器类型选择、同期电压配置、私有协议厂家选择、私有协议输出通道配置等等。配置完成后输出私有协议的数字量发送至电子式合并单元，电子式合并单元整合信号后发送至传统合并单元测试仪对电子式合并单元的数据进行测试。Set the current and voltage output channels of the traditional merging unit tester, configure the current and voltage of the supporting device, receive, system parameter settings, small analog variable ratio settings, sampling ratio settings, frequency, RMS, sampling channel configuration, transformer type selection , Same-period voltage configuration, private protocol manufacturer selection, private protocol output channel configuration, etc. After the configuration is completed, the digital output of the private protocol is sent to the electronic merging unit, and the electronic merging unit integrates the signal and sends it to the traditional merging unit tester to test the data of the electronic merging unit.
进一步的，合并单元测试仪连接、模拟量信号采集单元、模拟量信号处理单元、A/D采样单元、数字信号处理单元、CPU电光转换单元依次连接，CPU电光转换单元与合并单元连接，合并单元与合并单元测试仪连接。Further, the merging unit tester is connected, the analog signal acquisition unit, the analog signal processing unit, the A/D sampling unit, the digital signal processing unit, and the CPU electro-optical conversion unit are sequentially connected, and the CPU electro-optical conversion unit is connected with the merging unit, and the merging unit Connect with the Merge Unit Tester.
进一步的，所述装置用于配合合并单元测试仪对电子式合并单元进行测试，装置用于将合并单元测试仪输出的标准电流、电压模拟量信息转换成电子式合并单元能够识别认可的数字量信息。Further, the device is used to cooperate with the merging unit tester to test the electronic merging unit, and the device is used to convert the standard current and voltage analog quantity information output by the merging unit tester into a digital quantity that the electronic merging unit can identify and approve. information.
请参考图1，设置传统合并单元测试仪的电流、电压输出通道，配置配套装置的电流电压、接收、系统参数设置、小模拟量变比设置、采样变比设置、频率、有效值、采样通道配置、互感器类型选择、同期电压配置、私有协议厂家选择、私有协议输出通道配置等等。配置完成后输出私有协议的数字量发送至电子式合并单元，电子式合并单元整合信号后发送至传统合并单元测试仪对电子式合并单元的数据进行测试。Please refer to Figure 1, set the current and voltage output channels of the traditional combined unit tester, and configure the current and voltage, receiving, system parameter settings, small analog variable ratio settings, sampling ratio settings, frequency, RMS, and sampling channel configuration of the supporting device. , Transformer type selection, synchronous voltage configuration, private protocol manufacturer selection, private protocol output channel configuration, etc. After the configuration is completed, the digital output of the private protocol is sent to the electronic merging unit, and the electronic merging unit integrates the signal and sends it to the traditional merging unit tester to test the data of the electronic merging unit.
本申请提供的一个或多个技术方案，至少具有如下技术效果或优点：One or more technical solutions provided by this application at least have the following technical effects or advantages:
解决了传统合并单元测试仪存在无法对电子式合并单元进行测试的技术问题，实现了利用现有传统合并单元测试仪完成对电子式合并单元进行快速可靠测试，合理节约利用原有资源的技术效果。It solves the technical problem that the traditional merging unit tester cannot test the electronic merging unit, and realizes the technical effect of using the existing traditional merging unit tester to complete the fast and reliable testing of the electronic merging unit, and reasonably saving and utilizing the original resources. .
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。Although preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of the present invention.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
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