CN113448308A - Remote closed-loop test system and method for stability control system - Google Patents
Remote closed-loop test system and method for stability control system Download PDFInfo
- Publication number
- CN113448308A CN113448308A CN202110401557.6A CN202110401557A CN113448308A CN 113448308 A CN113448308 A CN 113448308A CN 202110401557 A CN202110401557 A CN 202110401557A CN 113448308 A CN113448308 A CN 113448308A
- Authority
- CN
- China
- Prior art keywords
- stability control
- test
- signal
- signals
- goose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 210
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004088 simulation Methods 0.000 claims abstract description 82
- 230000009471 action Effects 0.000 claims abstract description 45
- 230000006854 communication Effects 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 24
- 238000010998 test method Methods 0.000 claims abstract description 7
- 241000272814 Anser sp. Species 0.000 claims description 66
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000011217 control strategy Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The application discloses a remote closed-loop test system and a remote closed-loop test method for a stability control system, wherein the system consists of an RTDS real-time simulation system, a stability control test service terminal, a 5G CPE module, a stability control test terminal and a stability control device, the stability control test service terminal distributes simulation test data output by the RTDS real-time simulation system to each plant station stability control test terminal point to point through a 5G public network, and a stability control device action signal fed back by each plant station stability control test terminal is fed back to the stability control test service terminal through the 5G public network, so that the closed-loop test of real-time simulation data of a simulation laboratory carried by the existing 5G network to the stability control device distributed on the site is realized, the investment cost is low, the communication realization method is simple, the communication time delay is small, and the current stability control site joint debugging method is optimized and improved. The technical problems of high investment cost, huge workload and low efficiency of the conventional simulation test of the stability control system are solved.
Description
Technical Field
The application relates to the technical field of safety and stability control of electric power systems, in particular to a remote closed-loop test system and method of a stability control system.
Background
The safety and stability control system (stability control system) of the power system is a system formed by the communication of two or more safety and stability control devices (stability control devices) of a plant station through communication equipment, and is an important facility of a second defense line for ensuring the safe and stable operation of the power system. The transmission of information such as tide, running state, element fault and the like of a plurality of elements in the system is realized among the station stability control devices in the regional stability control system through a power system communication network, and concentrated or dispersed load shedding and load shedding measures are adopted when a power grid has serious faults so as to ensure the safe and stable running of the power system.
Because the area stability control system relates to a plurality of stations and has wide regional span, the field joint debugging test of the existing stability control system needs testers of a plurality of stations to manually operate the testers, the synchronization among the testers can be realized only by telephone contact, the efficiency is low, and the logical time sequence matching check of the stability control device is not accurate; the partial stability control system tests and utilizes a GPS or a network to realize synchronization of the tester, but needs to be additionally provided with GPS equipment, so that the investment cost is high, the workload is huge, and the efficiency is not high; and the 4G network has large communication time delay and is not suitable for closed-loop real-time simulation test.
Disclosure of Invention
The application provides a remote closed-loop test system and a remote closed-loop test method for a stability control system, which are used for solving the technical problems of high investment cost, huge workload and low efficiency of the conventional simulation test on the stability control system.
In view of the above, a first aspect of the present application provides a remote closed-loop test system for a stability control system, the system comprising:
the system comprises an RTDS real-time simulation system, a stability control test server, a 5G debugging network, a plurality of stability control test terminals and corresponding stability control devices;
the RTDS real-time simulation system is used for generating simulation test data of a power grid and converting the simulation test data into SV/GOOSE signals to be output according to preset interval time;
and is also used for: receiving the GOOSE signal and driving a switch signal of a stable control system to enable the stable control system to complete closed loop test;
the stability control test server is used for acquiring the SV/GOOSE signals, converting the GOOSE signals into switching value signals, and then respectively sending the switching value signals and the SV signals to each stability control test terminal through the 5G debugging network;
and is also used for: receiving the action signal, converting the action signal into a GOOSE signal and then feeding back the GOOSE signal to the RTDS real-time simulation system;
the stability control test terminal is used for receiving the SV signal and the switching value signal, converting the SV signal into analog quantity data and then sending the analog quantity data and the switching value signal to corresponding stability control devices;
and is also used for: sending the action signal to the stability control test server through the 5G debugging network;
and the stability control device is used for generating an action signal according to the analog quantity data and the switching value signal based on a preset stability control strategy and feeding the action signal back to the stability control test terminal.
Optionally, the 5G debug network specifically includes: a 5G CPE module and a 5G public network;
the stability control testing server and each stability control testing terminal are respectively provided with the corresponding 5G CPE module, so that the stability control testing server and each stability control testing terminal form a point-to-point transmission network.
Optionally, the stability control testing server and the 5G CPE module, and each stability control testing terminal and the 5G CPE module are connected through a wired network interface, and a communication protocol is UDP/IP.
Optionally, the RTDS real-time simulation system is specifically configured to:
constructing a power grid model, calculating the simulation test data required by each stability control device in real time through electromagnetic transient simulation, converting the simulation test data into SV/GOOSE signals and outputting the SV/GOOSE signals according to preset interval time, wherein the simulation test data comprises the following steps: three-phase voltage and three-phase current of lines, transformers and units.
Optionally, the acquiring the SV/GOOSE signals, converting the GOOSE signals into switching value signals, and then sending the switching value signals and the SV signals to each stability control test terminal through the 5G debug network respectively includes:
acquiring the SV/GOOSE signals, and calculating the amplitude values and phase angles of three-phase voltages and three-phase currents in the SV signals at each preset interval time through an interpolation algorithm and FFT;
and after the GOOSE signal is converted into a switching value signal, generating a data packet by the switching value signal, the amplitude value and the phase angle in a UDP/IP format, and sending the data packet to each stability control test terminal through the 5G debugging network.
Optionally, the receiving the SV signal and the switching value signal, converting the SV signal into analog data, and then sending the analog data and the switching value signal to a corresponding stability control device specifically includes:
receiving the data packet, carrying out discretization processing on the amplitude value and the phase angle in the data packet to obtain a digital quantity instantaneous value, and converting the digital quantity instantaneous value into the analog quantity data through D/A conversion;
and sending the analog quantity data and the switching value signals to corresponding stability control devices.
Optionally, the sending the data packet to each stability control test terminal through the 5G debug network specifically includes:
and setting an Internet of things SIM card as an identity recognizer of the 5G CPE module, sending the data packet to the 5G CPE module corresponding to each stability control test terminal through a 5G network slicing technology, and sending the data packet to the stability control test terminal through a UDP protocol.
The remote closed-loop test system of stability control system of claim 1, wherein said preset interval time is 10 ms.
A second aspect of the present application provides a remote closed-loop test method for a stability control system, which is applied to a remote closed-loop test system for a stability control system of a first aspect, and the method includes:
s1, generating simulation test data of the power grid through an RTDS real-time simulation system, and converting the simulation test data into SV/GOOSE signals to be output according to preset interval time;
s2, the stability control test service terminal acquires the SV/GOOSE signals, converts the GOOSE signals into switching value signals, and sends the switching value signals and the SV signals to each stability control test terminal through a 5G debugging network;
s3, the stability control test terminal receives the SV signal and the switching value signal, converts the SV signal into analog quantity data, and sends the analog quantity data and the switching value signal to corresponding stability control devices;
s4, the stability control device generates an action signal according to the analog quantity data and the switching value signal based on a preset stability control strategy, and feeds the action signal back to the stability control test terminal;
s5, the stability control test terminal sends the action signal to the stability control test server through the 5G debugging network;
s6, the stability control test server receives the action signal, converts the action signal into a GOOSE signal and feeds the GOOSE signal back to the RTDS real-time simulation system;
and S7, the RTDS real-time simulation system receives the GOOSE signal and drives a switch signal of the stability control system, so that the stability control system completes closed loop test.
Optionally, the 5G debug network specifically includes: a 5G CPE module and a 5G public network;
the stability control testing server and each stability control testing terminal are respectively provided with the corresponding 5G CPE module, so that the stability control testing server and each stability control testing terminal form a point-to-point transmission network.
According to the technical scheme, the method has the following advantages:
the application provides a remote closed loop test system of stability control system, includes: the RTDS real-time simulation system is used for generating simulation test data of the power grid and converting the simulation test data into SV/GOOSE signals to be output according to preset interval time; and is also used for: receiving a GOOSE signal and driving a switching signal of the stability control system to enable the stability control system to complete closed loop test; the stability control test server is used for acquiring SV/GOOSE signals, converting the GOOSE signals into switching value signals, and then respectively sending the switching value signals and the SV signals to each stability control test terminal through a 5G debugging network; and is also used for: receiving the action signal, converting the action signal into a GOOSE signal and feeding back the GOOSE signal to the RTDS real-time simulation system; the stability control test terminal is used for receiving the SV signal and the switching value signal, converting the SV signal into analog quantity data and then sending the analog quantity data and the switching value signal to corresponding stability control devices; and is also used for: sending the action signal to a stability control test server through a 5G debugging network; and the stability control device is used for generating an action signal according to the analog quantity data and the switching value signal based on a preset stability control strategy and feeding the action signal back to the stability control test terminal.
The remote closed-loop test system of the stability control system comprises an RTDS real-time simulation system, a stability control test service end, a 5G CPE module, a stability control test terminal and a stability control device, wherein the stability control test service end distributes simulation test data output by the RTDS real-time simulation system to each plant station stability control test terminal point to point through a 5G public network, and feeds back a stability control device action signal fed back by each plant station stability control test terminal to the stability control test service end through the 5G public network, so that closed-loop test of the stability control device distributed on the site by using the existing 5G network to bear real-time simulation data simulating a real laboratory is realized, the investment cost is low, the communication implementation method is simple, the communication delay is small, and the current stability control site combined debugging method is optimized and improved. The technical problems of high investment cost, huge workload and low efficiency of the conventional simulation test of the stability control system are solved.
Drawings
Fig. 1 is a system architecture diagram of a remote closed-loop test system of a stability control system provided in an embodiment of the present application;
fig. 2 is a data flow diagram in a remote closed-loop test system of a stability control system provided in an embodiment of the present application;
fig. 3 is a schematic flow chart of a remote closed-loop testing method of a stability control system provided in the embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by a person skilled in the art from the embodiments given in the present application without making any creative effort shall fall within the protection scope of the present application.
It should be noted that, with the application and popularization of the 5G network, some substations already have conditions for application and access of the 5G network; meanwhile, the 5G network slicing technology based on the Internet of things can enable the communication delay to meet the requirement of closed-loop real-time simulation of the stability control system. Therefore, the remote closed-loop test system and method of the stability control system are provided, the closed-loop test of the real-time simulation system of the laboratory on the stability control devices distributed on the site is realized by using the commercial 5G network to bear the closed-loop simulation test data and the action signals of the stability control system, the communication realization method is simple, the investment cost is low, the flow is simple, and the current joint debugging method of the stability control site is optimized and improved.
Please refer to fig. 1 and fig. 2.
The system of the remote closed-loop test system of the stability control system of the embodiment comprises:
the system comprises an RTDS real-time simulation system, a stability control test server, a 5G debugging network, a plurality of stability control test terminals and corresponding stability control devices.
The RTDS real-time simulation system is used for generating simulation test data of the power grid and converting the simulation test data into SV/GOOSE signals to be output according to preset interval time;
it should be noted that the RTDS real-time simulation system has the characteristic of digital simulation, and more importantly, the adoption of parallel processing technology and the design of special hardware ensure the real-time performance of RTDS operation and the capability of closed-loop test, and can complete the real-time simulation operation of a large-scale power system at a step length of 50 μ S. Goose (generic object oriented substation event) is a generic object oriented substation event. The Intelligent Electronic Device (IED) is mainly used for realizing information transmission among a plurality of Intelligent Electronic Devices (IEDs), and has high transmission success probability, wherein the transmission of various signals (commands) such as tripping, closing and interlocking are transmitted. Sv (sampledvalue) is a sample value that exchanges relevant model objects and services of sample values in a sample data set based on a publish/subscribe mechanism, and the mapping of these model objects and services to ISO/IEC8802-3 frames.
In this embodiment, the RTDS real-time simulation system is used to simulate the power grid system, and generate simulation test data of the power grid, such as: voltage, current, position, etc.; and converting the simulation test data into SV/GOOSE signals and outputting the SV/GOOSE signals to the stability control test server according to a preset interval time, where the output interval time selected in this embodiment is 10ms, and those skilled in the art can select the SV/GOOSE signals according to actual situations, which is not limited herein.
And is also used for: and receiving the GOOSE signal and driving a switch signal of the stability control system so that the stability control system completes closed loop test.
As can be known from fig. 1 and fig. 2, the data flow in the closed-loop test system of the present application is a bidirectional process, and it can be understood that the RTDS real-time simulation system is further configured to receive a GOOSE signal output by the stability control test service end, and is configured to drive a switching signal of the stability control system so that the stability control system completes the closed-loop test, where specific data flow conditions can refer to fig. 3 or an embodiment of the method.
The stability control test server is used for acquiring SV/GOOSE signals, converting the GOOSE signals into switching value signals, and then respectively sending the switching value signals and the SV signals to each stability control test terminal through a 5G debugging network;
it should be noted that, the stability control test service end is a data acquisition and distribution device, and can acquire SV signals of at least 24 interval voltages.
And is also used for: and receiving the action signal, converting the action signal into a GOOSE signal, and feeding back the GOOSE signal to the RTDS real-time simulation system.
The stability control test terminal is used for receiving the SV signal and the switching value signal, converting the SV signal into analog quantity data and then sending the analog quantity data and the switching value signal to corresponding stability control devices;
and is also used for: and sending the action signal to a stability control test server through a 5G debugging network.
And the stability control device is used for generating an action signal according to the analog quantity data and the switching value signal based on a preset stability control strategy and feeding the action signal back to the stability control test terminal.
It should be noted that the stability control device executes relevant logic based on a stability control strategy preset by itself, generates an action signal according to the analog quantity data and the switching value signal, and feeds back the action signal to the stability control test terminal.
The remote closed-loop test system of the stability control system in the embodiment comprises an RTDS real-time simulation system, a stability control test service end, a 5G debugging network, a stability control test terminal and a stability control device, wherein the stability control test service end distributes simulation test data output by the RTDS real-time simulation system to each plant station stability control test terminal point to point through a 5G public network, and feeds back a stability control device action signal fed back by each plant station stability control test terminal to the stability control test service end through the 5G public network, so that the closed-loop test of the stability control device distributed on the site by using real-time simulation data of an existing 5G network bearing simulation laboratory is realized, the investment cost is low, the communication realization method is simple, the communication time delay is small, and the method for optimizing and improving the current stability control site combined debugging is optimized. The technical problems of high investment cost, huge workload and low efficiency of the conventional simulation test of the stability control system are solved.
In an optional embodiment, the 5G debug network specifically includes: a 5G CPE module and a 5G public network; the stability control test service end and each stability control test terminal are respectively provided with a corresponding 5G CPE module, so that the stability control test service end and each stability control test terminal form a point-to-point transmission network.
As can be seen from fig. 1, the 5G debug network in this embodiment is composed of a 5G CPE module disposed at the stability control test service end, a 5G CPE module disposed at each stability control test terminal, and a 5G public network, where the 5G public network is an existing commercial 5G network.
It should be noted that, through the practical tests of the inventor, under the current 5G network condition, the end-to-end delay from the 5G CPE module of the stability control test service end to the 5G CPE module of each stability control test terminal generally does not exceed 40ms, and considering the transmission delay of the communication packet, the one-way communication delay between the stability control test service end and the stability control test terminal can be controlled to be not more than 50 ms; considering the transmission interval of UDP of 10ms, the bidirectional communication delay can be controlled to be not more than 120 ms. The typical fault and the judgment delay of an actual stability control system are comprehensively considered and are generally not more than 150ms, the once closed-loop simulation is realized for 270ms, and the real-time simulation requirement that the once closed-loop test needs to be completed within 300ms after the fault occurs is met.
Further, in an optional embodiment, the stability control test server and the 5G CPE module, and each stability control test terminal and the 5G CPE module are connected through a wired network interface, and a communication protocol is UDP/IP.
In this embodiment, in order to ensure consistency of the communication protocol, the communication protocols of the stability control test server and the 5G CPE module, and the stability control test terminals and the 5G CPE module are UDP/IP.
Further, in an optional implementation manner, the RTDS real-time simulation system is specifically configured to:
the method comprises the following steps of constructing a power grid model, calculating simulation test data required by each stability control device in real time through electromagnetic transient simulation, converting the simulation test data into SV/GOOSE signals and outputting the SV/GOOSE signals according to preset interval time, wherein the simulation test data comprise the following steps: three-phase voltage and three-phase current of lines, transformers and units.
Further, in an optional implementation manner, after acquiring SV/GOOSE signals and converting the GOOSE signals into switching value signals, the switching value signals and SV signals are respectively sent to each stability control test terminal through a 5G debug network, which specifically includes:
the method comprises the steps of collecting SV/GOOSE signals, and calculating the amplitude values and phase angles of three-phase voltages and three-phase currents in the SV signals at each preset interval time through an interpolation algorithm and FFT; and after the GOOSE signals are converted into switching value signals, generating data packets by the switching value signals, the amplitude values and the phase angles in a UDP/IP format, and sending the data packets to each stability control test terminal through a 5G debugging network.
It should be noted that, the stability control test server is a data acquisition and distribution device, and can acquire SV signals of at least 24 intervals of voltage and current, calculate values such as amplitude and phase angle of each interval through an interpolation algorithm and FFT, and convert the GOOSE signals into switching value signals for storage. And the stability control test server forms a data packet sent to each plant station tester according to a preset configuration file. In order to ensure consistency of communication protocols, a data packet adopts a UDP/IP format, and the data packet of this embodiment specifically includes:
(1)14 bytes of ethernet data;
(2)20 bytes of IP layer data;
(3) a UDP header of 8 bytes;
(4) frame number, total 2 bytes;
(5) the amplitude and the phase angle of the bus voltage of 2 voltage levels are 24 bytes;
(6) the amplitude and phase angle of 12 interval three-phase currents are 144 bytes in total;
(7)32 switching value signals, 4 bytes in total;
(8) spare, 38 bytes total;
(9) data checksum: (4) the complement of the sum of the (5) (6) (7) (8) terms, 2 bytes.
The above is 256 bytes for one packet. The communication transmission interval is transmitted at 10ms per point, the rate of the transmitted data is 80kbps, and is much less than the transmission rate of 5G (considered at the minimum rate of 100 Mbps).
Further, in an optional embodiment, after receiving the SV signal and the switching value signal and converting the SV signal into analog quantity data, the method specifically includes:
receiving a data packet, carrying out discretization processing on the amplitude value and the phase angle in the data packet to obtain a digital quantity instantaneous value, and converting the digital quantity instantaneous value into analog quantity data through D/A conversion; and sending the analog quantity data and the switching value signals to corresponding stability control devices.
It should be noted that, after receiving the data packet, the stability control testing terminal of this embodiment discretizes the three-phase voltage, the amplitude of the three-phase current, and the phase angle in the data packet into a digital instantaneous value, re-matches the received three-phase voltage and the received three-phase current according to the interval correspondence according to the configuration file, and converts the three-phase voltage and the three-phase current into analog data through the D/a conversion circuit and outputs the analog data to the stability control device; the switching value signal is output to the stable control device through the idle contact signal.
For easy understanding, after the steady control device receives the switching value signal, the specific processing flow is as follows:
the stability control device executes relevant logic according to a stability control strategy of the stability control device by collecting analog quantity and switching quantity signals output by the stability control test terminal, and finally outputs action signals which are fed back to the stability control test terminal through the switching quantity signals.
And the stability control test terminal still uses UDP/IP protocol to frame and sends the frame to the corresponding 5G CPE module. The frame format is:
(1)14 bytes of ethernet data;
(2)20 bytes of IP layer data;
(3) a UDP header of 8 bytes;
(4) frame number, total 2 bytes;
(5) stability control strategy action signal, 4 bytes in total
(6) Spare 14 bytes
(7) Data checksum: (4) and (5) the complement of the sum of the (6) terms, 2 bytes.
A total of 64 bytes, still transmitted at 10ms intervals, with a transmission rate of 10 kbps.
The feedback action signal is transmitted back to the service end of the 5G CPE through the 5G network, and finally, the feedback action signal is fed back to the RTDS system through the GOOSE signal to drive the relevant switch signal, so that the complete closed-loop test of the stability control system is completed.
Further, in an optional implementation manner, sending the data packet to each stability control test terminal through a 5G debug network specifically includes:
the SIM card of the Internet of things is set as an identity recognizer of a 5G CPE module, the data packet is sent to the 5G CPE module corresponding to each stability control test terminal through a 5G network slicing technology, and the data packet is sent to the stability control test terminal through a UDP protocol.
It should be noted that, in the embodiment, the stability control test server and the stability control test terminal construct an interconnection point-to-point connection through the 5G CPE module, the 5G CPE module uses an internet of things SIM card as an identity identifier, and the 5G network slicing technology is used to distribute the data packet to the 5G CPE module of each stability control test terminal and send the data packet to the stability control test terminal through a UDP protocol.
The above is an embodiment of a remote closed-loop test system of a stability control system provided in the embodiment of the present application, and the following is an embodiment of a remote closed-loop test method of a stability control system provided in the embodiment of the present application
Referring to fig. 3, the remote closed-loop testing method for the stability control system provided in the present embodiment includes:
And 102, acquiring SV/GOOSE signals by a stability control test service terminal, converting the GOOSE signals into switching value signals, and respectively transmitting the switching value signals and the SV signals to each stability control test terminal through a 5G debugging network.
And 103, receiving the SV signal and the switching value signal by the stability control test terminal, converting the SV signal into analog quantity data, and sending the analog quantity data and the switching value signal to corresponding stability control devices.
And 104, generating an action signal by the stability control device according to the analog quantity data and the switching value signal based on a preset stability control strategy, and feeding the action signal back to the stability control test terminal.
And 105, the stability control test terminal sends the action signal to a stability control test service end through a 5G debugging network.
And 106, receiving the action signal by the stability control test service end, converting the action signal into a GOOSE signal and feeding the GOOSE signal back to the RTDS real-time simulation system.
And 107, the RTDS real-time simulation system receives the GOOSE signal and drives a switch signal of the stability control system, so that the stability control system completes closed loop test.
According to the remote closed-loop test method of the stability control system, the remote real-time closed-loop test of the stability control system can be realized by utilizing the public 5G network, the communication link is simple, the situation that a special debugging channel is added to the field stability control system is avoided, the operation of field equipment is not influenced, the operation and maintenance are simple, the remote real-time simulation of the stability control system can be realized, and the efficiency and the quality of field joint debugging of the stability control system are improved. The technical problems of high investment cost, huge workload and low efficiency of the conventional simulation test on the stability control system are solved.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described method may refer to the corresponding process in the foregoing system embodiment, and is not described herein again.
The terms "first," "second," "third," "fourth," and the like (if any) in the description of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicates that there may be three relationships, for example, "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the contextual objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and in actual implementation, there may be other divisions, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a hardware form, and can also be realized in a software functional unit form.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A remote closed-loop test system of a stability control system is characterized by comprising: the system comprises an RTDS real-time simulation system, a stability control test server, a 5G debugging network, a plurality of stability control test terminals and corresponding stability control devices;
the RTDS real-time simulation system is used for generating simulation test data of a power grid and converting the simulation test data into SV/GOOSE signals to be output according to preset interval time;
and is also used for: receiving the GOOSE signal and driving a switch signal of a stable control system to enable the stable control system to complete closed loop test;
the stability control test service end is used for acquiring the SV/GOOSE signals, converting the GOOSE signals into switching value signals, and then respectively sending the switching value signals and the SV signals to each stability control test terminal through the 5G debugging network;
and is also used for: receiving the action signal, converting the action signal into a GOOSE signal and feeding back the GOOSE signal to the RTDS real-time simulation system;
the stability control test terminal is used for receiving the SV signal and the switching value signal, converting the SV signal into analog quantity data and then sending the analog quantity data and the switching value signal to corresponding stability control devices;
and is also used for: sending the action signal to the stability control test server through the 5G debugging network;
and the stability control device is used for generating an action signal according to the analog quantity data and the switching value signal based on a preset stability control strategy and feeding the action signal back to the stability control test terminal.
2. The remote closed-loop test system of the stability control system according to claim 1, wherein the 5G debug network specifically comprises: a 5G CPE module and a 5G public network;
the stability control testing server and each stability control testing terminal are respectively provided with the corresponding 5G CPE module, so that the stability control testing server and each stability control testing terminal form a point-to-point transmission network.
3. The remote closed-loop test system of the stability control system according to claim 2, wherein the stability control test server and the 5G CPE module, and each stability control test terminal and the 5G CPE module are connected through a wired network interface, and a communication protocol is UDP/IP.
4. The remote closed-loop test system of the stability control system according to claim 3, wherein the RTDS real-time simulation system is specifically configured to:
constructing a power grid model, calculating the simulation test data required by each stability control device in real time through electromagnetic transient simulation, converting the simulation test data into SV/GOOSE signals and outputting the SV/GOOSE signals according to preset interval time, wherein the simulation test data comprises the following steps: three-phase voltage and three-phase current of lines, transformers and units.
5. The remote closed-loop test system of the stability control system according to claim 4, wherein the acquiring the SV/GOOSE signals, converting the GOOSE signals into switching value signals, and sending the switching value signals and SV signals to each stability control test terminal through the 5G debug network respectively comprises:
acquiring the SV/GOOSE signals, and calculating the amplitude values and phase angles of three-phase voltages and three-phase currents in the SV signals at each preset interval time through an interpolation algorithm and FFT;
and after the GOOSE signal is converted into a switching value signal, generating a data packet by the switching value signal, the amplitude value and the phase angle in a UDP/IP format, and sending the data packet to each stability control test terminal through the 5G debugging network.
6. The remote closed-loop test system of the stability control system according to claim 5, wherein the receiving the SV signal and the switching value signal, converting the SV signal into analog data, and sending the analog data and the switching value signal to the corresponding stability control device specifically includes:
receiving the data packet, carrying out discretization processing on the amplitude value and the phase angle in the data packet to obtain a digital quantity instantaneous value, and converting the digital quantity instantaneous value into the analog quantity data through D/A conversion;
and sending the analog quantity data and the switching value signals to corresponding stability control devices.
7. The remote closed-loop test system of the stability control system according to claim 5, wherein the sending the data packet to each stability control test terminal through the 5G debug network specifically includes:
and setting an Internet of things SIM card as an identity recognizer of the 5G CPE module, sending the data packet to the 5G CPE module corresponding to each stability control test terminal through a 5G network slicing technology, and sending the data packet to the stability control test terminal through a UDP protocol.
8. The remote closed-loop test system of stability control system of claim 1, wherein said preset interval time is 10 ms.
9. A remote closed-loop test method for a stability control system, which is applied to the remote closed-loop test system for the stability control system as claimed in any one of claims 1 to 8, the method comprising:
s1, generating simulation test data of the power grid through an RTDS real-time simulation system, and converting the simulation test data into SV/GOOSE signals to be output according to preset interval time;
s2, the stability control test service terminal acquires the SV/GOOSE signals, converts the GOOSE signals into switching value signals, and sends the switching value signals and the SV signals to each stability control test terminal through a 5G debugging network;
s3, the stability control test terminal receives the SV signal and the switching value signal, converts the SV signal into analog quantity data, and then sends the analog quantity data and the switching value signal to corresponding stability control devices;
s4, the stability control device generates an action signal according to the analog quantity data and the switching value signal based on a preset stability control strategy, and feeds the action signal back to the stability control test terminal;
s5, the stability control test terminal sends the action signal to the stability control test server through the 5G debugging network;
s6, the stability control test server receives the action signal, converts the action signal into a GOOSE signal and feeds the GOOSE signal back to the RTDS real-time simulation system;
and S7, the RTDS real-time simulation system receives the GOOSE signal and drives a switch signal of the stability control system, so that the stability control system completes closed loop test.
10. The remote closed-loop test method of the stability control system according to claim 9, wherein the 5G debug network specifically comprises: a 5G CPE module and a 5G public network;
the stability control testing server and each stability control testing terminal are respectively provided with the corresponding 5G CPE module, so that the stability control testing server and each stability control testing terminal form a point-to-point transmission network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401557.6A CN113448308A (en) | 2021-04-14 | 2021-04-14 | Remote closed-loop test system and method for stability control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401557.6A CN113448308A (en) | 2021-04-14 | 2021-04-14 | Remote closed-loop test system and method for stability control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113448308A true CN113448308A (en) | 2021-09-28 |
Family
ID=77809521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110401557.6A Pending CN113448308A (en) | 2021-04-14 | 2021-04-14 | Remote closed-loop test system and method for stability control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113448308A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137930A (en) * | 2021-10-18 | 2022-03-04 | 国网浙江省电力有限公司温州供电公司 | Test system and method for regional stability control system |
| CN114785724A (en) * | 2022-04-14 | 2022-07-22 | 云南电网有限责任公司电力科学研究院 | Remote test system |
| CN115623554A (en) * | 2022-07-08 | 2023-01-17 | 国网新疆电力有限公司电力科学研究院 | Debugging and testing terminal communication module, equipment and method based on wireless communication technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675522A (en) * | 2013-11-12 | 2014-03-26 | 国电南瑞科技股份有限公司 | Bay-orient intelligent substation multifunctional secondary device and sampling platform |
| CN106093627A (en) * | 2016-06-01 | 2016-11-09 | 武汉中元华电科技股份有限公司 | Digital transformer substation power quality event record ripple monitoring device and monitoring method |
| US20170017298A1 (en) * | 2015-07-15 | 2017-01-19 | Washington State University | Real time control of voltage stability of power systems at the transmission level |
| CN208351269U (en) * | 2018-04-25 | 2019-01-08 | 中国南方电网有限责任公司电网技术研究中心 | It is a kind of for surely controlling the remote testing data transmission system of emulation testing |
| CN109495911A (en) * | 2018-12-21 | 2019-03-19 | 京信通信系统（中国）有限公司 | LTE-CPE equipment and antenna adjusting method |
| CN110730472A (en) * | 2019-09-18 | 2020-01-24 | 深圳市优克联新技术有限公司 | Communication certificate state detection method and server |
| CN111983996A (en) * | 2020-08-28 | 2020-11-24 | 南方电网科学研究院有限责任公司 | Remote testing device, method and equipment of stability control system |
-
2021
- 2021-04-14 CN CN202110401557.6A patent/CN113448308A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675522A (en) * | 2013-11-12 | 2014-03-26 | 国电南瑞科技股份有限公司 | Bay-orient intelligent substation multifunctional secondary device and sampling platform |
| US20170017298A1 (en) * | 2015-07-15 | 2017-01-19 | Washington State University | Real time control of voltage stability of power systems at the transmission level |
| CN106093627A (en) * | 2016-06-01 | 2016-11-09 | 武汉中元华电科技股份有限公司 | Digital transformer substation power quality event record ripple monitoring device and monitoring method |
| CN208351269U (en) * | 2018-04-25 | 2019-01-08 | 中国南方电网有限责任公司电网技术研究中心 | It is a kind of for surely controlling the remote testing data transmission system of emulation testing |
| CN109495911A (en) * | 2018-12-21 | 2019-03-19 | 京信通信系统（中国）有限公司 | LTE-CPE equipment and antenna adjusting method |
| CN110730472A (en) * | 2019-09-18 | 2020-01-24 | 深圳市优克联新技术有限公司 | Communication certificate state detection method and server |
| CN111983996A (en) * | 2020-08-28 | 2020-11-24 | 南方电网科学研究院有限责任公司 | Remote testing device, method and equipment of stability control system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137930A (en) * | 2021-10-18 | 2022-03-04 | 国网浙江省电力有限公司温州供电公司 | Test system and method for regional stability control system |
| CN114137930B (en) * | 2021-10-18 | 2023-12-19 | 国网浙江省电力有限公司温州供电公司 | Test system and method for regional stability control system |
| CN114785724A (en) * | 2022-04-14 | 2022-07-22 | 云南电网有限责任公司电力科学研究院 | Remote test system |
| CN114785724B (en) * | 2022-04-14 | 2024-03-19 | 云南电网有限责任公司电力科学研究院 | Remote test system |
| CN115623554A (en) * | 2022-07-08 | 2023-01-17 | 国网新疆电力有限公司电力科学研究院 | Debugging and testing terminal communication module, equipment and method based on wireless communication technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113448308A (en) | Remote closed-loop test system and method for stability control system | |
| Sidhu et al. | Modelling and simulation for performance evaluation of IEC61850-based substation communication systems | |
| CN104539473B (en) | Intelligent substation network virtual secondary circuit whole group of method of calibration and system | |
| CN109525285B (en) | Power line carrier communication module with power grid topology sensing function | |
| CN102497019B (en) | Transformer substation-dispatching center two-stage state estimation multi-source data timing and splicing method | |
| CN104375038A (en) | Extensible closed-loop synchronous power distribution automation terminal detection platform and method | |
| CN106712295B (en) | Logic distribution terminal and communication means based on Automation System for Distributing Substation | |
| CN111983996A (en) | Remote testing device, method and equipment of stability control system | |
| CN111884211A (en) | Joint simulation method and system for primary system and secondary system of intelligent substation | |
| CN104730397A (en) | Interoperation test system and method between distribution automation terminals | |
| CN111030910A (en) | Method and system for monitoring communication state of ring network node, measurement and control device and local module | |
| Ali et al. | Methodology & tools for performance evaluation of IEC 61850 GOOSE based protection schemes | |
| CN206251112U (en) | A kind of intelligent substation relay protection network pressure automatic testing equipment | |
| CN113391145A (en) | Test system of distribution automation feeder terminal | |
| KR101992980B1 (en) | Virtual data generator for multiple protocols | |
| Styczynski | Network protection in distribution systems with dispersed generation | |
| CN215641682U (en) | Residual current operated circuit breaker performance detection device | |
| CN108233537A (en) | A kind of micro-capacitance sensor electric energy quality monitoring system, method | |
| Uluski | Interactions between AMI and distribution management system for efficiency/reliability improvement at a typical utility | |
| CN212518535U (en) | Power distribution terminal and power distribution protection system | |
| CN103997123B (en) | A kind of based on smelling the circuit breaker of intelligent transformer substation remote control system and method for visiting idle condition | |
| Lifan et al. | The Experiences of Decentralized Self-Healing Grid | |
| CN113239568A (en) | Substation fault simulation method based on wave recording file and related device | |
| Xia et al. | A review of 3gpp release 18 on smart energy and infrastructure | |
| CN203894624U (en) | Low-voltage intelligent controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210928 |