WO2014121620A1

WO2014121620A1 - Cyclic verification and test system for power transmission and transformation status maintenance and test devices

Info

Publication number: WO2014121620A1
Application number: PCT/CN2013/085697
Authority: WO
Inventors: 罗涛; 雷民; 袁恒; 徐子立; 陈纓; 张军
Original assignee: 国家电网公司; 国网四川省电力公司电力科学研究院
Priority date: 2013-02-05
Filing date: 2013-10-22
Publication date: 2014-08-14
Also published as: CN103135084A; CN103135084B

Abstract

A cyclic verification and test system for power transmission and transformation status maintenance and test devices comprises an industrial computer, a test standard apparatus, a data collection module and a data processing module. The test standard apparatus is connected to the industrial computer through a CAN bus. A data collection card, a digital multimeter and a manual input unit of the data collection module are connected to the test standard apparatus respectively. The data processing module comprises the following: a PCI interface, a GPIB interface and a USB interface. A data processing template library and a certificate template library are connected to a data processor respectively. The data collection card, the data multimeter and the manual input unit are connected to the PCI interface, the GPIB interface and the USB interface respectively. The data processor is connected to the industrial computer. The cyclic verification and test system for power transmission and transformation status maintenance and test devices has advantages of high reliability, high stability, high integrity density, easy to use onsite and the like, and can perform onsite inspection and test on power transmission status maintenance and test devices for a long period of time without interruption.

Description

Circulating verification experiment system for power transmission and transformation state maintenance test equipment

Technical field

The invention relates to an experimental platform for patrolling verification of power transmission and transformation state inspection and test equipment, in particular to on-site calibration, verification and detection of power transmission and transformation state inspection test equipment, namely, AC/DC voltage divider, loop resistance tester and high voltage medium Reasonable and efficient on-site calibration, verification and inspection of loss and power test equipment such as loss tester, variable ratio tester, zinc oxide arrester tester and on-load tap-changer tester.

Background technique

In recent years, with the vigorous development of electric power construction, new equipment for power systems has emerged, and the influence of test results of high-voltage test equipment has also been expanding. The quality of data results has been increasingly valued by the power production department. At present, there are many types of power transmission and transformation state inspection and testing equipment used in the first-line power production, and the product quality is uneven. In response to this situation, in order to control the quality of such test instruments, the departments of the provincial power-saving departments are being carried out in an orderly manner. Periodic measurement verification of power transmission and transformation state maintenance test equipment. As far as the current actual work is carried out, the metrological verification of the power transmission and transformation status test equipment is mainly carried out by the metrology department of the Ministry of Science and Technology, etc. The measurement standard equipment is mainly stored in a fixed laboratory environment, and the specific work is taken by the user. The bottom-up cycle inspection method, but there are some shortcomings in this cycle inspection mode, mainly reflected in: Basic users (such as power supply bureaus, power plants, etc.) are more and more dispersed, and the collection equipment and transportation take up more At the same time, the superior metrological verification department often has a backlog of inspection equipment and cannot follow the inspection, which affects the normal use of the user. Some of the power transmission and maintenance inspection equipments have large or large quantities, and the inspection is inconvenient. .

With the continuous deepening of smart grid construction, more and more intelligent substations and state maintenance tests The equipment is put into operation on the grid. Since the state inspection test equipment mostly adopts the working mode of the hanging network operation, the equipment is directly installed in the power grid and is difficult to disassemble. The traditional periodic inspection and inspection method to the laboratory cannot be applied to the state inspection test equipment. The grid power outage time is limited, and the traditional inspection and return cycle is long, which cannot meet the grid requirements at all. Moreover, due to the great uncertainty in the process of transportation, even if the equipment passed the laboratory is inspected, there may be damages during transportation, resulting in the accuracy of the test data being unguaranteed and causing extreme impact on the safe operation of the power system. Big hidden dangers. The power transmission and transformation status test equipment can only meet the needs of the calibration work of the equipment and ensure the accuracy of equipment verification.

According to the applicant's knowledge, in the development of the electric test vehicle platform, the relevant units at home and abroad have carried out relevant research work, but the research involves the pre-test/transfer test project or the on-site verification of the electric transformer. The on-site measurement verification content of the substation state maintenance test equipment.

Summary of the invention

The object of the present invention is to provide a circuit test system for power transmission and transformation state inspection and test equipment with high integration density, good reliability and convenient on-site operation.

The object of the present invention is achieved as follows: A circuit test system for power transmission and transformation state inspection and test equipment consists of an industrial computer, a test standard device, a data acquisition module and a data processing module; the test standard device is connected to the industrial computer through a CAN bus. ;

The data acquisition module is composed of a data acquisition card, a digital multimeter and a manual input unit; the data acquisition card, the digital multimeter and the manual input unit are respectively connected with the test standard device;

The data processing module is composed as follows: a PCI interface, a GPIB interface, and a USB interface are respectively connected to the data processor, and the data processing template library and the certificate template library are respectively connected to the data processor;

The data acquisition card, the digital multimeter and the manual input unit of the above data acquisition module are respectively associated with the number According to the PCI interface, the GPIB interface and the USB interface in the processing module;

The data processor in the above data processing module is connected to the industrial computer.

The test standard device consists of 200kV DC measurement system standard device, 200kV AC measurement system standard device, high power DC standard resistance device, dielectric loss tester standard device, variable ratio tester standard device, zinc oxide arrester tester standard device, on-load The tap changer tester consists of standard devices.

The industrial computer is composed of a human-computer interaction unit and a microprocessor.

The manual input unit uses a keyboard.

The invention aims at the shortage of field calibration and verification in the power system transmission and transformation state inspection test equipment, and proposes and implements a circuit inspection laboratory for power transmission and transformation state inspection and test equipment, which can effectively carry out the field of power transmission and transformation state inspection and test equipment. Calibration, verification work, to achieve the inspection requirements of the transmission and transformation state maintenance test equipment.

The invention consists of an industrial computer, a test standard device, a data acquisition module and a data processing module. The industrial computer completes the functions of the experimental standard device operation and the display of the test results. The test standard device provides the relevant standard quantity according to the industrial computer command. The data acquisition module automatically selects the appropriate method to collect the experimental data. The data processing module completes the processing of the test data and the generation of the test certificate according to the experimental data collected by the data acquisition module according to the test data processing template and the test certificate template. The on-site verification laboratory is built on the on-site intelligent test vehicle platform to realize the top-down cycle inspection method, to make up for the shortcomings of the top-up cycle inspection method, and to implement the intensive management of the national grid company's human, financial and material resources. The guidelines and the roving verification ideas advocated by the General Administration of Quality Supervision, Inspection and Quarantine.

The working principle of the invention: The power calibration and testing equipment testing circuit (or experimental platform, or experimental system) by the industrial computer, test standard device, data acquisition module and data office The composition of the module. The industrial computer completes functions such as experimenter management, sample registration, sample inquiry, and certificate printing. The test management personnel register the test samples to be inspected through the industrial computer and assign them to the experiment personnel account. The industrial computer automatically assigns each test sample a unique task number. According to the assigned task list, the experimenter selects the appropriate experimental standard device through the processor of the industrial computer, completes the experimental task, and feeds the experimental result back to the human-computer interaction unit. The test standard device includes 200kV DC measurement system standard device, 200kV AC measurement system standard device, high-power DC standard resistance device, dielectric loss tester standard device, variable ratio tester standard device, zinc oxide arrester tester standard device, on-load tap The switch tester standard device has a total of 7 standard devices. The test standard device is connected to the industrial computer through the CAN bus. The experimenter operates one or more test standard devices through the industrial computer. The data acquisition module can select one or more of the data acquisition card, the digital multimeter or the manual input according to the working characteristics and the output type of the standard device, and store and transmit the experimental data of the standard device to the data processing module. data processing. The data processing module selects one or more of a PCI interface, a GPIB interface, and a USB interface according to the data type sent by the data acquisition module, and sends the data of the data acquisition module to the data processing unit, and the data processing unit processes the data according to the test type. The relevant test data processing template is called in the template library, the calculation and processing of the test data is completed, and the processing result is sent to the certificate generation unit. The certificate generation unit puts the processed test data into the corresponding experimental certificate template, generates an experimental certificate, and sends it back to the industrial computer for confirmation and printing of the certificate, and completes the calibration and verification work.

The beneficial effects of the invention are:

1. The invention is constructed based on the on-site intelligent test vehicle platform, and the laboratory can realize the top-down cycle inspection method to make up for many shortcomings of the bottom-up cycle inspection mode. The superior metrological verification department can proceed from the actual needs of the grassroots users, and based on the distribution of the main users and the conditions of the equipment to be inspected. The scheme, on-the-spot measurement and verification according to the plan and the cycle to the user, is more flexible and convenient, and can save the user's inspection cost while better meeting the user's equipment usage requirements, and can effectively solve the volume of the user to be inspected. Large or large number of problems caused by inconvenient inspection.

2. The invention comprises 7 standard devices such as a standard device of 200 kV DC measurement system, a standard device of 200 kV AC measurement system, and a high-power DC standard resistance, which can be used for power transmission and transformation states such as a conventional voltmeter, a DC resistance tester, and a loop resistance tester. The inspection and test equipment is convenient and effective for on-site measurement and verification.

3. The invention has the characteristics of high reliability, high stability, high accuracy and high integration. All the equipment can be tested without carrying, and the vehicle GPS global positioning system and the wireless dispatching communication device are installed, which can be uninterrupted for a long time. Conduct on-site inspections.

The invention is directed to the design of the tour verification requirement for the power system transmission and transformation state inspection test equipment, and can comprehensively calibrate and verify the main functions of the main power transmission and transformation state inspection test equipment in the market, and effectively evaluate the performance of the test instrument. To further meet the diversity requirements of metrological verification of power system transmission and transformation state maintenance test equipment, improve the operational safety of power systems, improve the economic efficiency of the power industry, and strengthen the measurement capability of domestic power systems.

DRAWINGS

Figure 1 is a block diagram of the basic working principle of the patrol verification laboratory.

Figure 2 is a block diagram of the industrial computer.

Figure 3 is a block diagram of the test standard device.

Figure 4 is a block diagram of the data acquisition module.

Figure 5 is a block diagram of the data processing module.

Marked in the figure: 1 industrial computer, 2 - test standard device, 3 - data acquisition module, 4 data Processing module, 5 - human-computer interaction unit, 6 - processor, 7 - 200kV DC measurement system standard device, 8 - 200kV AC measurement system standard device, 9 large power DC standard resistance, 10 - dielectric loss tester standard device, 11 one ratio tester standard device, 12-zinc oxide arrester tester standard device, 13-on-load tap-changer tester standard device, 14 CAN bus, 15 data acquisition card, 16 digital multimeter, 17-manual input unit , 18 - PCI interface, 19 GPIB interface, 20 USB interface, 21 - data processing template library, 22 certificate template library, 23 - data processor (ie dedicated microprocessor).

detailed description

The invention will be further described below in conjunction with the drawings and embodiments.

See the block diagram of the basic working principle of the tour verification laboratory shown in Figure 1. The experimental platform (or laboratory) is based on the on-site intelligent test vehicle platform and consists of an industrial computer, a test standard device, a data acquisition module and a data processing module. The industrial computer consists of a human-computer interaction unit and a processor. The experimenter inputs control commands through the human-computer interaction unit. The processor operates the test standard device according to the control command, and the test result is returned to the human-computer interaction unit. The test standard device provides the relevant standard quantity according to the industrial computer command. The data acquisition module selects the appropriate method to collect the experimental data according to the working mode of the test standard device. The data processing module completes the processing of the test data and the generation of the experimental certificate according to the experimental data collected by the data acquisition module according to the test data processing template and the test certificate template.

See the block diagram of the industrial computer shown in Figure 2. The industrial computer is composed of a human-computer interaction unit and a processor. The human-computer interaction unit mainly performs functions such as test command input and test information display. The personnel management function divides the operators into managers and experimenters according to the type of work. The management personnel complete the registration of the test sample through the industrial computer and assign it to the experimenter account. The IPC automatically assigns each test sample a unique task number; the experimenter selects the appropriate experimental standard device through the IPC according to the assigned task list. , Complete the experimental task and feed back the experimental results back to the human-computer interaction unit.

See the block diagram of the test standard device shown in Figure 3. The test standard device consists of 200kV DC measurement system standard device, 200kV AC measurement system standard device, high power DC standard resistance device, dielectric loss tester standard device, variable ratio tester standard device, zinc oxide arrester tester standard device, on-load tap The switch tester consists of standard devices. The test standard device is connected to the industrial computer via the CAN bus. The experimenter operates one or more test standard devices through the industrial computer.

See the block diagram of the data acquisition module shown in Figure 4. The data acquisition module consists of a data acquisition card, a digital multimeter, and a manual input unit (a keyboard is available). The data acquisition module can select a data acquisition card, a digital multimeter or a manual input unit (connected to the test standard device through the data line respectively) according to the working characteristics and output type of the standard device. One or more of the three methods will be the standard device. The experimental data is stored and transmitted to the data processing unit for data processing.

See the block diagram of the data processing module shown in Figure 5. The data processing module consists of a PCI interface, a GPIB interface, a USB interface, a data processing template library, and a certificate template library. The data processing module selects one or more of a PCI interface (connected to the data acquisition card), a GPIB interface (connected to the digital multimeter), and a USB interface (connected to the manual input unit) according to the type of data sent by the data acquisition module. Data collection and transmission, call the relevant test data processing template from the data processing template library, complete the calculation and processing of the test data, and enter the corresponding experimental certificate template in the certificate template library, generate the experimental certificate, and send it back to the industrial computer for certificate. Confirmation and printing. The data processing template library and the certificate template library are respectively connected to the data processor. The data processor is connected to the industrial computer.

Claims

& He J wants

1. A circuit calibration experiment system for power transmission and transformation status maintenance test equipment, consisting of an industrial computer, a test standard device, a data acquisition module and a data processing module;

The test standard device is connected to the industrial computer through CAN bus;

The data acquisition module consists of a data acquisition card, a digital multimeter and a manual input unit; the data acquisition card, digital multimeter and manual input unit are respectively connected to the test standard device;

The data processing module is composed as follows: PCI interface, GPIB interface and USB interface are connected to the data processor respectively, and the data processing template library and certificate template library are connected to the data processor respectively;

The data acquisition card, digital multimeter and manual input unit of the above-mentioned data acquisition module are respectively connected to the PCI interface, GPIB interface and USB interface in the data processing module;

The data processor in the above-mentioned data processing module is connected to the industrial computer.

2. The circuit calibration experimental system for power transmission and transformation status maintenance test equipment according to claim 1, characterized in that the test standard device consists of a 200kV DC measurement system standard device, a 200kV AC measurement system standard device, and a high-power DC standard resistor. , dielectric loss tester standard device, transformation ratio tester standard device, zinc oxide arrester tester standard device, on-load tap changer tester standard device.

3. The power transmission and transformation status maintenance test equipment patrol verification experiment system according to claim 2, characterized in that the industrial computer is composed of a human-computer interaction unit and a microprocessor.

4. The power transmission and transformation status maintenance test equipment tour calibration experimental system according to claim 3, characterized in that the manual input unit adopts a keyboard.