CN111668932A - Laboratory synchronous testing system and method for transformer substation total-station PMU device - Google Patents
Laboratory synchronous testing system and method for transformer substation total-station PMU device Download PDFInfo
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- CN111668932A CN111668932A CN202010530251.6A CN202010530251A CN111668932A CN 111668932 A CN111668932 A CN 111668932A CN 202010530251 A CN202010530251 A CN 202010530251A CN 111668932 A CN111668932 A CN 111668932A
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- 238000012360 testing method Methods 0.000 title claims abstract description 102
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 43
- 238000010835 comparative analysis Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 abstract description 9
- 230000010355 oscillation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 238000012026 site acceptance test Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- 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
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a laboratory synchronous testing system and method for a transformer substation total station PMU device, which realize comprehensive tests such as power grid modeling simulation and test signal output, voltage and current amount acquisition and phasor data output, PMU device sampling precision test, protocol test, disturbance and fault test, low-frequency oscillation test and the like, and can replace the PMU device acceptance test and joint regulation part work with a dispatching master station, so that the field acceptance test only needs to be carried out by carrying out simple sampling and network connectivity test, the field workload can be greatly simplified on the premise of ensuring the acceptance quality, and the working efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of synchronous phasor measurement, in particular to a laboratory synchronous testing system and method of a transformer substation total station PMU device.
Background
In recent years, a high-voltage alternating current and direct current series-parallel large power grid system is gradually formed in a power grid in China, meanwhile, the access proportion of new energy such as photovoltaic energy, wind power energy and the like is greatly improved year by year, more distributed power sources, energy storage and the like are flexibly accessed to a user side, the power grid structure is more networked, the operation mode is more flexible, the control strategy is more complicated, dynamic safety monitoring of the power system becomes more important, and a Wide Area Measurement System (WAMS) provides an important data base for safe and stable operation of a large-area interconnected power grid. As a PMU device which is the most important data source of the WAMS system, how to improve data quality under the current and future power grid situation is a crucial research direction.
The PMU field test in the prior art depends on instrument and equipment such as a high-precision standard source, a synchronous clock and the like, and because the PMU field test has many production projects and the acceptance time is generally insufficient, the completion acceptance of the PMU is usually only the simplest single test on the field, and the integrity test is lacked. In the prior art, although laboratory tests of PMUs can completely test static and dynamic performances of PMUs, the tests are often limited to single-channel tests of a single device, and are less related to synchronous tests of multiple devices, communication protocol tests and interactive function tests with a master station.
Disclosure of Invention
The invention aims to provide a laboratory synchronous testing system and method of a transformer substation total station PMU device, which aim to solve the problems of complex field test and long time consumption in the prior art, realize replacement of the field test, simplify the field workload and improve the working efficiency.
In order to achieve the technical purpose, the invention provides a laboratory synchronous testing system of a transformer substation total station PMU device, which comprises:
the system comprises an RTDS simulation system, a reference PMU, a measured PMU, a switch, an upper computer, a protocol tester and a scheduling control simulation system;
the RTDS simulation system is respectively connected with the reference PMU and the measured PMU, phasor data generated by the measured PMU is sent to the switch, and the switch is also respectively connected with the upper computer, the protocol tester and the scheduling control simulation system;
the RTDS simulation system generates corresponding test signals according to different test cases, establishes a power grid simulation model of the tested transformer substation, and outputs simulation results to the PMU;
the reference PMU and the measured PMU collect voltage and current quantities and generate synchronous phasor;
and the upper computer compares and analyzes the synchronous phasor of the measured PMU and the synchronous phasor of the reference PMU.
Preferably, the reference PMU and the measured PMU are in voltage parallel and current series relation.
Preferably, the dispatching control simulation system is a laboratory simulation system of a power grid D5000 system, and during testing, the dispatching control simulation system is configured according to parameters of an actual WAMS system access transformer substation.
Preferably, the system further comprises a synchronous clock for clocking the various PMUs of the test system.
Preferably, the power grid simulation model comprises a voltage level, a power grid topological relation and a current transformer configuration.
The invention also provides a laboratory synchronous testing method of the transformer substation total-station PMU device by using the synchronous testing system, which comprises the following operations:
generating corresponding test signals in the RTDS according to different test cases, and building a power grid simulation model of the tested newly-built substation;
configuring according to the parameters of the transformer substation accessed by the actual WAMS system in a dispatching control simulation system, and downloading the transformer substation configuration file actually accessed by the measured PMU device, wherein the configuration of the reference PMU device is the same as that of one measured PMU device;
and acquiring the voltage and current magnitude of a power grid simulation model in the RTDS by using the reference PMU and the measured PMU, generating a synchronous phasor, and performing comparative analysis on the synchronous phasor of the measured PMU and the synchronous phasor of the reference PMU.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
compared with the prior art, the invention realizes comprehensive tests of power grid modeling simulation and test signal output, voltage and current amount acquisition and phasor data output, PMU device sampling precision test, protocol test, disturbance and fault test, low-frequency oscillation test and the like, can replace PMU device acceptance test and joint debugging part work with a dispatching master station which are carried out on site through the tests, ensures that the site acceptance test only needs to carry out simple sampling and network connectivity test, can greatly simplify the site workload on the premise of ensuring the acceptance quality, and improves the working efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a laboratory synchronous testing system of a total substation PMU device in a transformer substation provided in the prior art;
fig. 2 is a flowchart of a laboratory synchronous testing method for a substation total-station PMU device provided in the embodiment of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
The laboratory synchronous testing system and method for the total-station PMU device of the transformer substation provided by the embodiment of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention discloses a laboratory synchronous testing system for a total substation PMU device of a transformer substation, where the system includes:
the system comprises an RTDS simulation system, a reference PMU, a measured PMU, a switch, an upper computer, a protocol tester and a scheduling control simulation system;
RTDS simulation system is connected with benchmark PMU and PMU under test respectively, phasor data transmission who PMU under test produced to the switch, host computer, protocol tester, dispatch control simulation system are still connected respectively to the switch.
The embodiment of the invention can realize power grid modeling simulation and test signal output, voltage and current amount acquisition and phasor data output, PMU device sampling precision test, protocol test, disturbance and fault test, low-frequency oscillation test and the like.
The RTDS simulation system is used for generating corresponding test signals according to different test cases, establishing a power grid model of a tested substation, including voltage levels, power grid topological relations, current transformer configuration and the like, simulating normal operation conditions, low-frequency oscillation conditions, out-of-area and in-area short circuit fault conditions according to test requirements, and outputting different simulation results to the PMU.
Gather voltage and current volume and generate synchronous phasor through the PMU, benchmark PMU is the high accuracy PMU device through the calibration, and wherein benchmark PMU is parallelly connected, the electric current series relation for the voltage with one of them PMU of being surveyed to realize being surveyed PMU and benchmark PMU's comparison.
The upper computer realizes the contrastive analysis function of the synchronous phasor of the PMU to be measured and the synchronous phasor of the reference PMU, gives a contrast result, automatically forms a test report and realizes the precision test of the PMU.
The protocol tester realizes the test of the PMU communication protocol under various test environments, gives a protocol test result and automatically generates a test report.
The dispatching control simulation system is a laboratory simulation system of a power grid D5000 system, is provided with a WAMS system, is used for joint debugging test of the PMU device and the dispatching master station, and can realize the test of the function of the WAMS system.
The exchanger is used for forming a local area network and realizing the exchange of PMU output phasor information.
The system also comprises a synchronous clock which is used for timing various PMUs of the test system.
The embodiment of the invention realizes comprehensive tests such as power grid modeling simulation and test signal output, voltage and current amount acquisition and phasor data output, PMU device sampling precision test, protocol test, disturbance and fault test, low-frequency oscillation test and the like, can replace the PMU device acceptance test and joint debugging part work with a dispatching master station which are carried out on site through the test, ensures that the site acceptance test only needs to carry out simple sampling and network connectivity test, can greatly simplify the site workload on the premise of ensuring the acceptance quality, and improves the working efficiency.
As shown in fig. 2, an embodiment of the present invention further discloses a laboratory synchronization testing method for a transformer substation total station PMU device, which is implemented by using the synchronization testing system, where the method includes the following operations:
generating corresponding test signals in the RTDS according to different test cases, and building a power grid simulation model of the tested newly-built substation;
configuring according to the parameters of the transformer substation accessed by the actual WAMS system in a dispatching control simulation system, and downloading the transformer substation configuration file actually accessed by the measured PMU device, wherein the configuration of the reference PMU device is the same as that of one measured PMU device;
and acquiring the voltage and current magnitude of a power grid simulation model in the RTDS by using the reference PMU and the measured PMU, generating a synchronous phasor, and performing comparative analysis on the synchronous phasor of the measured PMU and the synchronous phasor of the reference PMU.
Comprehensive tests such as power grid modeling simulation and test signal output, voltage and current amount acquisition and phasor data output, PMU device sampling precision test, protocol test, disturbance and fault test, low-frequency oscillation test and the like are realized, and the tests can replace the PMU device acceptance test and the joint debugging part work with a dispatching master station which are carried out on site, so that the site acceptance test can be carried out only by carrying out simple sampling and network connectivity test.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A laboratory synchronous testing system of a transformer substation total station PMU device, characterized in that the system includes:
the system comprises an RTDS simulation system, a reference PMU, a measured PMU, a switch, an upper computer, a protocol tester and a scheduling control simulation system;
the RTDS simulation system is respectively connected with the reference PMU and the measured PMU, phasor data generated by the measured PMU is sent to the switch, and the switch is also respectively connected with the upper computer, the protocol tester and the scheduling control simulation system;
the RTDS simulation system generates corresponding test signals according to different test cases, establishes a power grid simulation model of the tested transformer substation, and outputs simulation results to the PMU;
the reference PMU and the measured PMU collect voltage and current quantities and generate synchronous phasor;
and the upper computer compares and analyzes the synchronous phasor of the measured PMU and the synchronous phasor of the reference PMU.
2. The laboratory synchronous testing system of the total substation PMU device of claim 1, wherein the reference PMU and the measured PMU are in voltage parallel and current series relationship.
3. The laboratory synchronous testing system for the total substation PMU device of claim 1, wherein the scheduling control simulation system is a laboratory simulation system of a grid D5000 system, and is configured according to parameters of an actual WAMS system accessing to the substation during testing.
4. The laboratory synchronous testing system for PMU devices of a substation total station according to claim 1, further comprising a synchronous clock for clocking the various PMUs of the testing system.
5. The laboratory synchronous testing system of a substation total station PMU device of claim 1, wherein the grid simulation model comprises voltage class, grid topology, current transformer configuration.
6. A laboratory synchronous testing method of substation total PMU devices implemented using the synchronous testing system of any of claims 1-5, the method comprising the operations of:
generating corresponding test signals in the RTDS according to different test cases, and building a power grid simulation model of the tested newly-built substation;
configuring according to the parameters of the transformer substation accessed by the actual WAMS system in a dispatching control simulation system, and downloading the transformer substation configuration file actually accessed by the measured PMU device, wherein the configuration of the reference PMU device is the same as that of one measured PMU device;
and acquiring the voltage and current magnitude of a power grid simulation model in the RTDS by using the reference PMU and the measured PMU, generating a synchronous phasor, and performing comparative analysis on the synchronous phasor of the measured PMU and the synchronous phasor of the reference PMU.
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Application publication date: 20200915 |