CN113036752A - Transformer substation intelligent secondary equipment fault simulation device and method - Google Patents

Transformer substation intelligent secondary equipment fault simulation device and method Download PDF

Info

Publication number
CN113036752A
CN113036752A CN202110154224.8A CN202110154224A CN113036752A CN 113036752 A CN113036752 A CN 113036752A CN 202110154224 A CN202110154224 A CN 202110154224A CN 113036752 A CN113036752 A CN 113036752A
Authority
CN
China
Prior art keywords
fault
signal
secondary equipment
transformer substation
intelligent secondary
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.)
Granted
Application number
CN202110154224.8A
Other languages
Chinese (zh)
Other versions
CN113036752B (en
Inventor
何昭辉
刘海鹏
曹锐
吴通华
安林
王应瑞
沈桂鹏
侯启林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NARI Group Corp
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
Original Assignee
NARI Group Corp
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NARI Group Corp, Nari Technology Co Ltd, NARI Nanjing Control System Co Ltd filed Critical NARI Group Corp
Priority to CN202110154224.8A priority Critical patent/CN113036752B/en
Publication of CN113036752A publication Critical patent/CN113036752A/en
Application granted granted Critical
Publication of CN113036752B publication Critical patent/CN113036752B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • 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]
    • 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
    • H02J13/00002—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 monitoring
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • 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
    • H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • 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
    • 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]
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

Abstract

The invention discloses a fault simulation device and method for intelligent secondary equipment of a transformer substation, wherein the device comprises the following steps: a fault database in which fault cases of the intelligent secondary equipment are stored; the control module is used for calling a corresponding fault case from the fault database based on the fault simulation instruction obtained from the human-computer interaction module, modifying a fault signal in the fault case according to the fault simulation instruction and generating an actual fault signal; and the execution module receives actual fault signals sent by the control module, generates corresponding output signals, sends the output signals to the intelligent secondary equipment of the transformer substation, enables the intelligent secondary equipment of the transformer substation to generate faults, receives fault information sent by the intelligent secondary equipment of the transformer substation, sends the fault information to the human-computer interaction module through the control module, and displays the fault information by the human-computer interaction module. The invention realizes the simulation of the fault of the intelligent secondary equipment of the transformer substation caused by the abnormal external input under the laboratory condition, improves the safety of fault research and reduces the inspection cost.

Description

Transformer substation intelligent secondary equipment fault simulation device and method
Technical Field
The invention belongs to the technical field of secondary equipment fault simulation, and particularly relates to a fault simulation device and method for intelligent secondary equipment of a transformer substation.
Background
The electric power system is a system for electric energy production and consumption, plays an important role in national production and life, and has profound influence and significance on the development of the social economy in China by safe and stable operation. However, under severe natural environments and complex operating conditions, power systems face a variety of uncertain factors. The secondary equipment is a device for reflecting the running state of the primary equipment, monitoring, measuring and protecting the running of the primary equipment, and when the primary equipment breaks down or has abnormal conditions, the secondary equipment can prevent a fault element or a line from being further damaged by an abnormal running mode, and can ensure that other fault-free equipment or lines can be quickly restored to normal running, thereby playing an active role in the process of ensuring the normal running of a power system. However, the analysis of the historical operation data of the power system can show that the incorrect action of the secondary device causes more than 75% of power accidents. At present, domestic related research mainly focuses on the aspects of state monitoring and fault diagnosis of primary equipment, and is insufficient for fault theory research and engineering application of secondary equipment, particularly intelligent secondary equipment of a transformer substation. Therefore, the fault mechanism of the intelligent secondary equipment of the transformer substation needs to be researched, and the feasibility and the accuracy of subsequent secondary equipment fault diagnosis and fault-tolerant control are verified through simulation faults. However, the intelligent secondary equipment of the transformer substation is often in a severe environment, and fault simulation is carried out, so that certain danger exists.
Disclosure of Invention
Aiming at the problems, the invention provides the fault simulation device and method for the intelligent secondary equipment of the transformer substation, so that the fault of the intelligent secondary equipment of the transformer substation, caused by the abnormal external input, can be simulated under the laboratory condition, the safety of fault research is improved, and the inspection cost is reduced.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a substation intelligent secondary device fault simulation apparatus, including:
the fault database is internally stored with fault cases of the intelligent secondary equipment;
a human-computer interaction module;
the control module is respectively connected with the fault database and the human-computer interaction module, calls corresponding fault cases from the fault database based on fault simulation instructions obtained from the human-computer interaction module, modifies fault signals in the fault cases according to the fault simulation instructions and generates actual fault signals;
and the execution module is connected with the control module, receives actual fault signals sent by the control module, generates corresponding output signals, sends the output signals to the intelligent secondary equipment of the transformer substation, enables the intelligent secondary equipment of the transformer substation to generate faults, receives fault information sent by the intelligent secondary equipment of the transformer substation, sends the fault information to the human-computer interaction module through the control module, and displays the fault information and fault simulation instructions of the intelligent secondary equipment of the transformer substation through the human-computer interaction module.
Optionally, the control module comprises a main control chip and a signal analysis card which are connected with each other;
the signal analysis card is also connected with the human-computer interaction module, the fault database and the execution module, receives a fault simulation instruction sent by the human-computer interaction module and sends the fault simulation instruction to the main control chip, the main control chip calls a corresponding fault case from the fault database according to a control signal sent by the fault simulation instruction, then modifies a fault signal in the fault case according to the fault simulation instruction, generates an actual fault signal, and finally sends the actual fault signal to the execution module;
the signal analysis clamping piece also receives the fault generated by the intelligent secondary equipment of the transformer substation sent by the execution module and sends the fault to the man-machine interaction module.
Optionally, the human-computer interaction module includes a monitoring screen and a fault injection requirement setting submodule; the monitoring screen is used for displaying fault information and fault simulation instructions of the intelligent secondary equipment of the transformer substation in real time; and the fault injection requirement setting submodule is used for inputting a fault simulation instruction to the control module.
Optionally, the fault injection requirement setting sub-module includes an input device, the input device is provided with simulation software, and after receiving a fault simulation requirement sent by an operator based on the input device, the simulation software forms a fault simulation instruction according to the fault simulation requirement of the operator and sends the fault simulation instruction to the control module.
Optionally, the execution module includes: the system comprises a control bus, a controllable power supply submodule, an optical fiber signal interaction submodule, a controllable multi-path alternating current signal submodule, a debugging signal interaction submodule, a controllable high-precision direct current small signal submodule, a state monitoring submodule, a virtual time tick signal submodule and a controllable multi-path direct current signal submodule which are connected with the control bus;
the controllable power supply submodule is used for being connected with a power supply interface of the intelligent secondary equipment of the transformer substation;
the optical fiber signal interaction submodule is used for being connected with an optical fiber interface of the intelligent secondary equipment of the transformer substation;
the controllable multi-path alternating current signal submodule is used for being connected with an alternating current head interface of the intelligent secondary equipment of the transformer substation;
the debugging signal interaction sub-module is used for being connected with a debugging interface of the intelligent secondary equipment of the transformer substation;
the controllable high-precision direct current small signal sub-module is used for being connected with a direct current small signal interface of the intelligent secondary equipment of the transformer substation;
the state monitoring submodule is used for being connected with a relay outlet interface of the intelligent secondary equipment of the transformer substation;
the virtual time tick signal sub-module is used for being connected with an IRIG-B input interface of the intelligent secondary equipment of the transformer substation;
and the controllable multi-path direct current signal sub-module is used for being connected with a strong current input interface of the intelligent secondary equipment of the transformer substation.
Optionally, the controllable power supply sub-module adjusts the amplitude of the direct-current power supply in the intelligent secondary equipment of the transformer substation, and the amplitude, the phase and the frequency of the alternating-current power supply according to the received actual fault signal;
the optical fiber signal interaction submodule sends message information with different light attenuation and waveforms to the intelligent secondary equipment of the transformer substation according to an actual fault signal;
the controllable multi-path alternating current signal submodule adjusts the amplitude, the phase and the frequency of alternating current signals of the intelligent secondary equipment of the transformer substation according to actual fault signals;
the debugging signal interaction submodule sends a debugging instruction according to an actual fault signal and receives running, self-checking and deflection reports returned by the intelligent secondary equipment of the transformer substation;
the controllable high-precision direct-current small-signal submodule sends analog quantity signals with different amplitudes to the intelligent secondary equipment of the transformer substation according to actual fault signals;
the state monitoring submodule monitors the state of the relay of the intelligent secondary equipment of the transformer substation in real time;
the virtual time tick signal submodule sends a time tick signal with fault characteristics to the intelligent secondary equipment of the transformer substation according to an actual fault signal;
and the controllable multipath direct current signal submodule adjusts the amplitude of the direct current signal of the intelligent secondary equipment of the transformer substation according to the actual fault signal.
In a second aspect, the invention provides a fault simulation method for intelligent secondary equipment of a transformer substation, which comprises the following steps:
calling a corresponding fault case from a fault database by using a control module based on a fault simulation instruction obtained from a human-computer interaction module, and modifying a fault signal in the fault case according to the fault simulation instruction to generate an actual fault signal;
and generating a corresponding output signal by using the execution module based on the actual fault signal received from the control module, transmitting the output signal to the intelligent secondary equipment of the transformer substation, enabling the intelligent secondary equipment of the transformer substation to generate a fault, receiving fault information transmitted by the intelligent secondary equipment of the transformer substation, transmitting the fault information to the human-computer interaction module through the control module, and displaying the fault information and the fault simulation instruction of the intelligent secondary equipment of the transformer substation by using the human-computer interaction module.
Optionally, the method for establishing the fault case includes:
collecting and sorting all possible fault types e caused by external input of intelligent secondary equipmentiAnd numbering the fault types, namely i, i ═ 1,2,3max；
For all fault types eiThe corresponding abnormal input signal port number is sorted and recorded as j, j ═ 1,2,3maxAnd a fault signal, noted Ni,j(t), forming a plurality of fault cases.
Optionally, the fault simulation instruction is defined as E, which includes a simulated fault type erriSimulation time terrFailure intensity serr，E＝{erri，terr，serr}。
Optionally, the step of generating the actual fault signal comprises:
the control module is used for controlling the fault type err according to the simulationiCalling fault database and fault databaseCorresponding to the fault case, and modifying the fault signal N according to the fault simulation instruction Ei,j(t) generating an actual failure signal Nri,j(t)；
If ei＝erriAnd t < terrThen Nri,j(t)＝serr·Ni,j(t)。
Compared with the prior art, the invention has the beneficial effects that:
the invention realizes the simulation of the fault of the intelligent secondary equipment of the transformer substation caused by the abnormal external input under the laboratory condition, improves the safety of fault research, reduces the inspection cost and provides a convenient and effective way for the research of fault signal analysis, fault early warning, fault diagnosis and fault-tolerant control of the intelligent secondary equipment of the transformer substation.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a substation intelligent secondary device fault simulation apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a method for simulating a fault of an intelligent secondary device of a substation according to an embodiment of the present invention
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
Example 1
The embodiment of the invention provides a fault simulation device for intelligent secondary equipment of a transformer substation, which comprises the following components as shown in figure 1:
the fault database is internally stored with fault cases of the intelligent secondary equipment;
a human-computer interaction module;
the control module is respectively connected with the fault database and the human-computer interaction module, calls corresponding fault cases from the fault database based on fault simulation instructions obtained from the human-computer interaction module, modifies fault signals in the fault cases according to the fault simulation instructions and generates actual fault signals;
and the execution module is connected with the control module, receives actual fault signals sent by the control module, generates corresponding output signals, sends the output signals to the intelligent secondary equipment of the transformer substation, enables the intelligent secondary equipment of the transformer substation to generate faults, receives fault information sent by the intelligent secondary equipment of the transformer substation, sends the fault information to the human-computer interaction module through the control module, and displays the fault information and fault simulation instructions (namely fault simulation information) of the intelligent secondary equipment of the transformer substation through the human-computer interaction module.
As shown in fig. 1, in a specific implementation manner of the embodiment of the present invention, the control module includes a main control chip and a signal analysis card connected to each other; the signal analysis card is also connected with the human-computer interaction module, the fault database and the execution module, receives a fault simulation instruction sent by the human-computer interaction module and sends the fault simulation instruction to the main control chip, the main control chip calls a corresponding fault case from the fault database according to a control signal sent by the fault simulation instruction, then modifies a fault signal in the fault case according to the fault simulation instruction, generates an actual fault signal, and finally sends the actual fault signal to the execution module; the signal analysis clamping piece also receives the fault generated by the intelligent secondary equipment of the transformer substation sent by the execution module and sends the fault to the man-machine interaction module.
In a specific implementation manner of the embodiment of the present invention, as shown in fig. 1, the human-computer interaction module includes a monitoring screen and a fault injection requirement setting sub-module; the monitoring screen is used for displaying fault information of the intelligent secondary equipment of the transformer substation in real time; and the fault injection requirement setting submodule is used for inputting a fault simulation instruction to the control module. The fault injection requirement setting submodule comprises input equipment, the input equipment is provided with simulation software, and when the input equipment is connected with the simulation software, the simulation software is used for simulating the fault injection requirement setting submoduleAfter receiving a fault simulation requirement sent by an operator, the simulation software forms a fault simulation instruction according to the fault simulation requirement of the operator and sends the fault simulation instruction to the control module. Defining a fault simulation instruction as E, wherein the fault simulation instruction comprises erriType of simulation failure, terrSimulation time, unit s, and failure intensity serr，E＝{erri，terr，serr}, the erriType of simulation failure, terrSimulation time, unit s, and failure intensity serrAll determined by the test personnel according to the simulation requirements.
In a specific implementation manner of the embodiment of the present invention, as shown in fig. 1, the execution module includes: the system comprises a control bus, a controllable power supply submodule, an optical fiber signal interaction submodule, a controllable multi-path alternating current signal submodule, a debugging signal interaction submodule, a controllable high-precision direct current small signal submodule, a state monitoring submodule, a virtual time tick signal submodule and a controllable multi-path direct current signal submodule which are connected with the control bus;
the controllable power supply submodule is used for being connected with a power supply interface of the intelligent secondary equipment of the transformer substation; the controllable power supply submodule adjusts the amplitude of a direct-current power supply in the intelligent secondary equipment of the transformer substation and the amplitude, phase and frequency of an alternating-current power supply according to the received actual fault signal;
the optical fiber signal interaction submodule is used for being connected with an optical fiber interface of the intelligent secondary equipment of the transformer substation; the optical fiber signal interaction submodule sends message information with different light attenuation and waveforms to the intelligent secondary equipment of the transformer substation according to an actual fault signal;
the controllable multi-path alternating current signal submodule is used for being connected with an alternating current head interface of the intelligent secondary equipment of the transformer substation; the controllable multi-path alternating current signal submodule adjusts the amplitude, the phase and the frequency of alternating current signals of the intelligent secondary equipment of the transformer substation according to actual fault signals;
the debugging signal interaction sub-module is used for being connected with a debugging interface of the intelligent secondary equipment of the transformer substation; the debugging signal interaction submodule sends a debugging instruction according to an actual fault signal and receives running, self-checking and deflection reports returned by the intelligent secondary equipment of the transformer substation;
the controllable high-precision direct current small signal sub-module is used for being connected with a direct current small signal interface of the intelligent secondary equipment of the transformer substation; the controllable high-precision direct-current small-signal submodule sends analog quantity signals with different amplitudes to the intelligent secondary equipment of the transformer substation according to actual fault signals;
the state monitoring submodule is used for being connected with a relay outlet interface of the intelligent secondary equipment of the transformer substation; the state monitoring submodule monitors the state of the relay of the intelligent secondary equipment of the transformer substation in real time;
the virtual time tick signal sub-module is used for being connected with an IRIG-B input interface of the intelligent secondary equipment of the transformer substation; the virtual time tick signal submodule sends a time tick signal with fault characteristics to the intelligent secondary equipment of the transformer substation according to an actual fault signal;
the controllable multi-path direct current signal sub-module is used for being connected with a strong current input interface of the intelligent secondary equipment of the transformer substation; and the controllable multipath direct current signal submodule adjusts the amplitude of the direct current signal of the intelligent secondary equipment of the transformer substation according to the actual fault signal.
In a specific implementation manner of the embodiment of the present invention, the fault cases included in the fault database may be established by the following steps:
collecting and sorting all possible fault types e caused by external input of intelligent secondary equipmentiAnd numbering the fault types as i, i-1, 2,3, …, imax；
Aiming at all fault types e by consulting secondary equipment manufacturers, acquiring field equipment fault data and communicating with transformer substation operatorsiThe abnormal input signal port numbers corresponding to the abnormal input signal ports are sorted and recorded as j, j being 1,2,3, …, jmaxAnd a fault signal, noted Ni,j(t), units are related to j.
In summary, the working process of the fault simulation apparatus in the embodiment of the present invention specifically includes:
(A) the tester needs to simulateDetermining simulation fault type erriTime t of simulationerrAnd intensity of failure serrGenerating a fault simulation instruction E by a fault injection requirement setting submodule in the man-machine interaction module;
E＝{erri，terr，serr} (1)
(B) the fault injection requirement setting submodule sends a fault simulation instruction E to the control module, and the control module sends a simulation fault type err to the fault simulation instruction EiCalling the corresponding fault case in the fault database, and modifying the fault signal N according to the fault simulation instruction Ei,j(t) generating an actual failure signal Nri,j(t), units are related to j;
if ei＝erriAnd t is<terrThen Nri,j(t)＝serr·Ni,j(t) (2)
(C) The execution module receives the actual fault signal Nri,j(t) transmitting the actual fault signal Nr according to j through the control busi,j(t) distributing to a controllable power supply sub-module, an optical fiber signal interaction sub-module, a controllable multi-path alternating current signal sub-module, a debugging signal interaction sub-module, a controllable high-precision direct current small signal sub-module, a virtual time setting signal sub-module and a controllable multi-path direct current signal sub-module;
(D) the controllable power supply submodule, the optical fiber signal interaction submodule, the controllable multi-path alternating current signal submodule, the debugging signal interaction submodule, the controllable high-precision direct current small signal submodule, the virtual time synchronization signal submodule and the controllable multi-path direct current signal submodule enable an actual fault signal Nr to be transmitted to the debugging signal interaction submodulei,j(t) sending the data to a communication side and input side interface corresponding to the secondary equipment;
(E) external secondary equipment receives actual fault signal Nri,jAfter (t), the intelligent secondary equipment fails due to signal abnormality, and the communication side and the output side of the intelligent secondary equipment send signals with fault information to the optical fiber signal interaction submodule, the debugging signal interaction submodule and the state monitoring submodule of the intelligent secondary equipment failure simulation device during the failure of the intelligent secondary equipment;
(F) after receiving the fault information of the secondary equipment, the optical fiber signal interaction submodule, the debugging signal interaction submodule and the state monitoring submodule send the fault information to the control module through the control bus;
(G) after the control module processes the fault information, the processed fault information is sent to a monitoring screen in the man-machine interaction module, and a tester can obtain the current output signal of the intelligent secondary equipment and the fault simulation real-time state through the monitoring screen, so that the fault simulation device provided by the embodiment of the invention is matched with the intelligent secondary equipment of the transformer substation to simulate various intelligent secondary equipment faults of the transformer substation caused by abnormal external input.
Example 2
In the embodiment of the present invention, a method for simulating a fault of an intelligent secondary device of a substation is provided, as shown in fig. 2, the method includes:
determining a simulation fault type;
judging whether the simulation fault type contains a current fault database, if not, converting a corresponding fault case according to the field condition and adding the fault case to the fault database; if the fault simulation request is contained in the current fault database, a fault injection requirement setting submodule in the man-machine interaction module is used for sending a fault simulation requirement to the control module;
calling a corresponding fault case from a fault database by using a control module based on a fault simulation instruction (namely a fault simulation requirement) acquired from a human-computer interaction module, and modifying a fault signal in the fault case according to the fault simulation instruction to generate an actual fault signal;
the execution module is used for adjusting the signal output of each sub-module contained in the execution module according to the actual fault signal received from the control module, and transmits the fault information to the substation intelligent secondary equipment, so that the substation intelligent secondary equipment acts based on the output signal of the execution module to generate a fault, receives fault information (the fault information comprises reports and output signals) transmitted by the substation intelligent secondary equipment, and then the fault information and the fault simulation instruction (namely fault simulation information) of the intelligent secondary equipment of the transformer substation are displayed by the man-machine interaction module, and a user obtains simulation process information and a simulation result through the man-machine interaction module.
In a specific implementation manner of the embodiment of the present invention, the method for establishing the fault case includes:
collecting and sorting all possible fault types e caused by external input of intelligent secondary equipmentiAnd numbering the fault types, namely i, i ═ 1,2,3max；
For all fault types eiThe corresponding abnormal input signal port number is sorted and recorded as j, j ═ 1,2,3maxAnd a fault signal, noted Ni,j(t), forming a plurality of fault cases.
In a specific implementation manner of the embodiment of the present invention, the fault simulation instruction is defined as E, which includes a simulation fault type erriSimulation time terrFailure intensity serr，E＝{erri，terr，serr}。
In a specific implementation manner of the embodiment of the present invention, the step of generating the actual fault signal includes:
the control module is used for controlling the fault type err according to the simulationiCalling the corresponding fault case in the fault database, and modifying the fault signal N according to the fault simulation instruction Ei,j(t) generating an actual failure signal Nri,j(t)；
If ei＝erriAnd t < terrThen Nri,j(t)＝serr·Ni,j(t)。
The method in the embodiment of the present invention can be implemented based on the fault placement device in embodiment 1.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a transformer substation's intelligence secondary equipment trouble simulation device which characterized in that includes:
the fault database is internally stored with fault cases of the intelligent secondary equipment;
a human-computer interaction module;
the control module is respectively connected with the fault database and the human-computer interaction module, calls corresponding fault cases from the fault database based on fault simulation instructions obtained from the human-computer interaction module, modifies fault signals in the fault cases according to the fault simulation instructions and generates actual fault signals;
and the execution module is connected with the control module, receives actual fault signals sent by the control module, generates corresponding output signals, sends the output signals to the intelligent secondary equipment of the transformer substation, enables the intelligent secondary equipment of the transformer substation to generate faults, receives fault information sent by the intelligent secondary equipment of the transformer substation, sends the fault information to the human-computer interaction module through the control module, and displays the fault information and fault simulation instructions of the intelligent secondary equipment of the transformer substation through the human-computer interaction module.
2. The substation intelligent secondary equipment fault simulation device of claim 1, characterized in that: the control module comprises a main control chip and a signal analysis card which are connected;
the signal analysis card is also connected with the human-computer interaction module, the fault database and the execution module, receives a fault simulation instruction sent by the human-computer interaction module and sends the fault simulation instruction to the main control chip, the main control chip calls a corresponding fault case from the fault database according to a control signal sent by the fault simulation instruction, then modifies a fault signal in the fault case according to the fault simulation instruction, generates an actual fault signal, and finally sends the actual fault signal to the execution module;
the signal analysis clamping piece also receives the fault generated by the intelligent secondary equipment of the transformer substation sent by the execution module and sends the fault to the man-machine interaction module.
3. The substation intelligent secondary equipment fault simulation device of claim 1, characterized in that: the man-machine interaction module comprises a monitoring screen and a fault injection requirement setting submodule; the monitoring screen is used for displaying fault information and fault simulation instructions of the intelligent secondary equipment of the transformer substation in real time; and the fault injection requirement setting submodule is used for inputting a fault simulation instruction to the control module.
4. The substation intelligent secondary equipment fault simulation device of claim 3, characterized in that: the fault injection requirement setting submodule comprises input equipment, the input equipment is provided with simulation software, and after the input equipment receives a fault simulation requirement sent by an operator, the simulation software forms a fault simulation instruction according to the fault simulation requirement of the operator and sends the fault simulation instruction to the control module.
5. The substation intelligent secondary equipment fault simulation device of claim 1, characterized in that: the execution module comprises: the system comprises a control bus, a controllable power supply submodule, an optical fiber signal interaction submodule, a controllable multi-path alternating current signal submodule, a debugging signal interaction submodule, a controllable high-precision direct current small signal submodule, a state monitoring submodule, a virtual time tick signal submodule and a controllable multi-path direct current signal submodule which are connected with the control bus;
the controllable power supply submodule is used for being connected with a power supply interface of the intelligent secondary equipment of the transformer substation;
the optical fiber signal interaction submodule is used for being connected with an optical fiber interface of the intelligent secondary equipment of the transformer substation;
the controllable multi-path alternating current signal submodule is used for being connected with an alternating current head interface of the intelligent secondary equipment of the transformer substation;
the debugging signal interaction sub-module is used for being connected with a debugging interface of the intelligent secondary equipment of the transformer substation;
the controllable high-precision direct current small signal sub-module is used for being connected with a direct current small signal interface of the intelligent secondary equipment of the transformer substation;
the state monitoring submodule is used for being connected with a relay outlet interface of the intelligent secondary equipment of the transformer substation;
the virtual time tick signal sub-module is used for being connected with an IRIG-B input interface of the intelligent secondary equipment of the transformer substation;
and the controllable multi-path direct current signal sub-module is used for being connected with a strong current input interface of the intelligent secondary equipment of the transformer substation.
6. The substation intelligent secondary equipment fault simulation device of claim 5, characterized in that: the controllable power supply submodule adjusts the amplitude of a direct-current power supply in the intelligent secondary equipment of the transformer substation and the amplitude, phase and frequency of an alternating-current power supply according to the received actual fault signal;
the optical fiber signal interaction submodule sends message information with different light attenuation and waveforms to the intelligent secondary equipment of the transformer substation according to an actual fault signal;
the controllable multi-path alternating current signal submodule adjusts the amplitude, the phase and the frequency of alternating current signals of the intelligent secondary equipment of the transformer substation according to actual fault signals;
the debugging signal interaction submodule sends a debugging instruction according to an actual fault signal and receives running, self-checking and deflection reports returned by the intelligent secondary equipment of the transformer substation;
the controllable high-precision direct-current small-signal submodule sends analog quantity signals with different amplitudes to the intelligent secondary equipment of the transformer substation according to actual fault signals;
the state monitoring submodule monitors the state of the relay of the intelligent secondary equipment of the transformer substation in real time;
the virtual time tick signal submodule sends a time tick signal with fault characteristics to the intelligent secondary equipment of the transformer substation according to an actual fault signal;
and the controllable multipath direct current signal submodule adjusts the amplitude of the direct current signal of the intelligent secondary equipment of the transformer substation according to the actual fault signal.
7. A fault simulation method for intelligent secondary equipment of a transformer substation is characterized by comprising the following steps:
calling a corresponding fault case from a fault database by using a control module based on a fault simulation instruction obtained from a human-computer interaction module, and modifying a fault signal in the fault case according to the fault simulation instruction to generate an actual fault signal;
and generating a corresponding output signal by using the execution module based on the actual fault signal received from the control module, transmitting the output signal to the intelligent secondary equipment of the transformer substation, enabling the intelligent secondary equipment of the transformer substation to generate a fault, receiving fault information transmitted by the intelligent secondary equipment of the transformer substation, transmitting the fault information to the human-computer interaction module through the control module, and displaying the fault information and the fault simulation instruction of the intelligent secondary equipment of the transformer substation by using the human-computer interaction module.
8. The substation intelligent secondary equipment fault simulation method according to claim 7, characterized in that: the method for establishing the fault case comprises the following steps:
collecting and sorting all possible fault types e caused by external input of intelligent secondary equipmentiAnd numbering the fault types, namely i, i ═ 1,2,3max；
For all fault types eiThe corresponding abnormal input signal port number is sorted and recorded as j, j ═ 1,2,3maxAnd a fault signal, noted Ni,j(t), forming a plurality of fault cases.
9. The substation intelligent secondary equipment fault simulation method according to claim 7, characterized in that: defining the fault simulation instruction as E, which includes a simulation fault type erriSimulation time terrFailure intensity serr，E＝{erri，terr，serr}。
10. The substation intelligent secondary equipment fault simulation method according to claim 9, characterized in that: the step of generating the actual fault signal comprises:
the control module is used for controlling the fault type err according to the simulationiCalling the corresponding fault case in the fault database, and modifying the fault signal N according to the fault simulation instruction Ei,j(t) generating an actual failure signal Nri,j(t)；
If ei＝erriAnd t < terrThen Nri,j(t)＝serr·Ni,j(t)。
CN202110154224.8A 2021-02-04 2021-02-04 Transformer substation intelligent secondary equipment fault simulation device and method Active CN113036752B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110154224.8A CN113036752B (en) 2021-02-04 2021-02-04 Transformer substation intelligent secondary equipment fault simulation device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110154224.8A CN113036752B (en) 2021-02-04 2021-02-04 Transformer substation intelligent secondary equipment fault simulation device and method

Publications (2)

Publication Number Publication Date
CN113036752A true CN113036752A (en) 2021-06-25
CN113036752B CN113036752B (en) 2023-02-21

Family

ID=76459913

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110154224.8A Active CN113036752B (en) 2021-02-04 2021-02-04 Transformer substation intelligent secondary equipment fault simulation device and method

Country Status (1)

Country Link
CN (1) CN113036752B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113629876A (en) * 2021-08-30 2021-11-09 南方电网科学研究院有限责任公司 Test system and test method of special inspection module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105894920A (en) * 2016-04-07 2016-08-24 国网浙江省电力公司培训中心 Fault simulation method of using simulation intelligent electric energy meter
CN109948808A (en) * 2017-11-15 2019-06-28 许继集团有限公司 The banking process in substation equipment fault case library, fault diagnosis method and system
CN110991036A (en) * 2019-11-29 2020-04-10 北京空间技术研制试验中心 Spacecraft attitude and orbit control system fault case library construction system and construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105894920A (en) * 2016-04-07 2016-08-24 国网浙江省电力公司培训中心 Fault simulation method of using simulation intelligent electric energy meter
CN109948808A (en) * 2017-11-15 2019-06-28 许继集团有限公司 The banking process in substation equipment fault case library, fault diagnosis method and system
CN110991036A (en) * 2019-11-29 2020-04-10 北京空间技术研制试验中心 Spacecraft attitude and orbit control system fault case library construction system and construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈辉等: "继电保护定值自动校验系统研究", 《电工电气》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113629876A (en) * 2021-08-30 2021-11-09 南方电网科学研究院有限责任公司 Test system and test method of special inspection module
CN113629876B (en) * 2021-08-30 2024-02-27 南方电网科学研究院有限责任公司 Test system and test method of tervelum inspection module

Also Published As

Publication number Publication date
CN113036752B (en) 2023-02-21

Similar Documents

Publication Publication Date Title
CN103941240B (en) A kind of detection method of the extension set detecting device that communicates based on radar system
CN106597142A (en) Automatic testing apparatus of SVG power module
CN103913728B (en) A kind of method of testing based on portable radar comprehensive tester
CN105404277A (en) Fusion power supply real-time state monitoring and fault display method based on EPICS
CN109655732A (en) Nuclear power plant reactor protects system plate test method, platform, device and terminal
CN113036752B (en) Transformer substation intelligent secondary equipment fault simulation device and method
CN110611312B (en) On-line simulation system and method for panoramic data of substation bay level
CN107102567B (en) Simulation test system and test method
CN110932406B (en) Remote signaling information checking method and device for intelligent substation scheduling master station
CN105680441A (en) Simulated replacement technique-based simulated point-alignment device
CN112394708B (en) Intelligent Internet of things management virtual test method for power grid safety and stability control system
CN210090591U (en) Test equipment for speed regulator of generator
CN112130013A (en) MMC converter valve low-pressure pressurization test system and method thereof
CN115729217A (en) Test system for controlling full link of thyristor converter valve
CN116388381A (en) Simulation testing device and method for intelligent substation monitoring system
CN110488711A (en) Mixing plant detection system
CN110224882A (en) A kind of energy-accumulating power station remote control time delay measuring method and device
CN110991673B (en) Fault isolation and localization method for complex systems
CN113688059A (en) Automatic function detection system and method for stability control system
CN109634849B (en) Visual signal interaction intelligent substation reconstruction and extension virtual testing device and method
CN111323661A (en) On-site protection device overhauling method
CN106646019A (en) Relay automation tester using secondary state detection and closed loop testing method
CN112098777A (en) Multi-source heterogeneous power distribution network fault simulation process and method based on RTDS
CN112214912A (en) External automatic test system and airborne equipment test method
CN212723744U (en) Interface device for connecting valve base control equipment and digital simulation platform

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
GR01 Patent grant
GR01 Patent grant