CN114498914A - Intelligent substation synthesizes monitored control system - Google Patents
Intelligent substation synthesizes monitored control system Download PDFInfo
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- CN114498914A CN114498914A CN202111502185.2A CN202111502185A CN114498914A CN 114498914 A CN114498914 A CN 114498914A CN 202111502185 A CN202111502185 A CN 202111502185A CN 114498914 A CN114498914 A CN 114498914A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
- H02H1/0023—Using arc detectors sensing non electrical parameters, e.g. by optical, pneumatic, thermal or sonic sensors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—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
- H02J13/00022—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 wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—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 switches, relays or circuit breakers
- H02J13/0004—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 switches, relays or circuit breakers involved in a protection system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The embodiment of the invention discloses an intelligent substation comprehensive monitoring system, which comprises the following components in a specific embodiment: the system comprises a comprehensive monitoring platform and an intelligent terminal, wherein the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager; the intelligent terminal comprises an intelligent Internet of things system and is used for realizing microcomputer protection, arc light protection, line protection, transformer protection, temperature monitoring, motor protection, electric energy metering and electric energy quality monitoring; the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager, receives and processes data information acquired by the intelligent Internet of things system, and performs fault alarming and protection according to a processing result.
Description
Technical Field
The invention relates to a transformer substation monitoring system. And more particularly, to an intelligent substation integrated monitoring system.
Background
Currently, the world economy is undergoing an unprecedented revolution, continually challenging the continuity of infrastructure operation, all businesses relying on the continuity of power utility and equipment supply. The internet of everything, smart cities, smart grids, smart buildings and smart industries are developing towards more interconnection, electrification and digitization, and the high-low voltage power distribution manufacturing industry faces more severe requirements.
Along with the continuous development of an electric power system, the automation degree is continuously improved, an unattended transformer substation also becomes a necessary trend, the transformer substation is upgraded and transformed, meanwhile, new challenges to the operation and maintenance of safety production transformers are faced, the data utilization rate is expected to be improved, mass data are efficiently and accurately read, hidden dangers existing in equipment are known in advance to be subjected to rush repair and rapid processing, and the operation and maintenance quality and efficiency are guaranteed.
Disclosure of Invention
The invention aims to provide an intelligent substation comprehensive monitoring system to solve at least one of the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a first aspect of an intelligent substation comprehensive monitoring system, which comprises: the system comprises a comprehensive monitoring platform and an intelligent terminal, wherein the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager;
the intelligent terminal comprises an intelligent Internet of things system and is used for realizing microcomputer protection, arc light protection, line protection, transformer protection, temperature monitoring, motor protection, electric energy metering and electric energy quality monitoring;
the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager, receives and processes data information acquired by the intelligent Internet of things system, and performs fault alarming and protection according to a processing result.
Furthermore, the setting place of the intelligent terminal at least comprises one of a power distribution cabinet, a switch cabinet and a substation.
Furthermore, the comprehensive monitoring platform comprises a data control system, a switch and a wireless gateway, wherein the switch and the wireless gateway are respectively connected with the intelligent terminal, the switch receives data information transmitted by the internet, the wireless gateway receives data information transmitted by wireless communication equipment, the data control system receives the data information, integrates and stores the data information in a classified manner so as to provide historical data query service, and performs fault alarm and abnormal information push display according to the data information.
Further, the intelligent internet of things system comprises:
the microcomputer protection device realizes digital comprehensive protection, measurement and control of electric circuits and electric equipment of the power distribution cabinet and the switch cabinet;
the digital bus arc light protection measurement and control device realizes monitoring of bus arc light faults in the switch cabinet;
the line protection device realizes the relay protection of the cable line side of the substation and the switch cabinet;
the transformer protection device realizes non-electric quantity protection and longitudinal differential protection of the transformer, wherein the non-electric quantity protection comprises high-temperature and over-temperature protection of a dry type transformer and oil temperature and heavy gas protection of an oil type transformer;
the wired temperature measuring device and the wireless temperature measuring device realize real-time monitoring of the temperatures of the soft lap joint part of the transformer, the lap joint point of the horizontal bus and the vertical bus, the lap joint point of the circuit breaker and the vertical bus, the cable joint and the movable and static contacts of the vacuum circuit breaker.
Further, the intelligent internet of things system further comprises:
the electric energy metering device is used for measuring and metering electric parameters of generated energy or power consumption of a load end of a power supply manufacturer;
the power quality monitoring device detects various indexes of power quality in real time, including power grid frequency, voltage deviation, three-phase voltage unbalance, public power grid harmonic waves, public power grid inter-harmonic waves, fluctuation and flicker, and transmits the detection result to the comprehensive monitoring platform in real time;
the motor protection device realizes comprehensive protection control of motor loops in a substation, a switch cabinet and a power distribution cabinet, and gives an alarm and protects the motor when the motor fails;
the harmonic wave treatment device is used for reducing harmonic wave current and increasing the effective capacity of the transformer.
Further, the intelligent internet of things system further comprises: and the switch aging monitoring equipment realizes the analysis and prediction of the switch health state.
Furthermore, the microcomputer protection device, the digital bus arc light protection measurement and control device, the line protection device, the transformer protection device, the wired temperature measurement device, the wireless temperature measurement device, the electric energy metering device, the electric energy quality monitoring device and the motor protection device are respectively in communication connection with the communication manager.
Furthermore, the communication management machine is communicated with the intelligent terminal and the comprehensive monitoring platform through a 5G internet, a 4G internet, an action hotspot, a local area network or a LoRa data transmission system.
Furthermore, the switch aging detection device comprises an intelligent tripping module, an energy storage module and an operating mechanism sensor, wherein the tripping module and the energy storage module are used for executing switch disconnection operation according to signals issued by the comprehensive monitoring platform, so that the remote control of the target switch is realized, and the operating mechanism sensor is used for monitoring the state of the circuit breaker mechanism.
Furthermore, the digital bus arc light protection measurement and control system consists of a digital bus arc light protection measurement and control device, a sensor auxiliary unit, an arc light sensor and a connecting cable, wherein the sensor auxiliary unit is connected to the digital bus arc light protection measurement and control device, receives action information from the arc light sensor and transmits the action information to the digital bus arc light protection measurement and control device; the arc sensor is used for detecting arc information when arc faults occur to target equipment; the digital bus arc light protection measurement and control device positions and displays the address codes of the sensor auxiliary unit and the arc light sensor, thereby being beneficial to timely and accurately positioning the fault switch cabinet and providing conditions for maintenance.
The invention has the following beneficial effects:
the intelligent substation comprehensive monitoring system of this embodiment, through the nimble network deployment of multiple branch system and the unified deployment of comprehensive monitoring platform and intelligent terminal, realize through trend prediction technique accurate prediction electric fire hidden danger, the quick accurate fault point of location of big data analysis, to the potential safety hazard know, promoted maintenance efficiency by a wide margin.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 illustrates an intelligent substation integrated monitoring system according to an embodiment of the present invention.
Fig. 2 shows an intelligent substation integrated monitoring system according to another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a computer system implementing the apparatus provided by the embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to the following examples and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides an intelligent substation integrated monitoring system, which includes an integrated monitoring platform and an intelligent terminal, where the integrated monitoring platform communicates with the intelligent terminal through a communication manager;
the intelligent terminal comprises an intelligent Internet of things system and is used for realizing microcomputer protection, arc light protection, line protection, transformer protection, temperature monitoring, motor protection, electric energy metering and electric energy quality monitoring;
the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager, processes data information acquired by the intelligent Internet of things system, and performs fault alarming and protection according to a processing result.
The intelligent substation comprehensive monitoring system of this embodiment, through the nimble network deployment of multiple branch system and the unified deployment of comprehensive monitoring platform and intelligent terminal, realize through trend prediction technique accurate prediction electric fire hidden danger, the quick accurate fault point of location of big data analysis, to the potential safety hazard know, promoted maintenance efficiency by a wide margin.
In a specific embodiment, the transformer substation is provided with a power distribution cabinet, a switch cabinet and a transformer substation, monitoring equipment is arranged around the transformer substation, and the monitoring equipment is communicated with the intelligent terminal through the communication management machine and used for achieving video positioning of fault points.
In a possible implementation manner, the installation location of the intelligent terminal at least includes one of a power distribution cabinet, a switch cabinet and a power substation, and specifically, is installed at a specific position in the power distribution cabinet, the switch cabinet or the power substation according to a preset requirement, wherein,
the switch board includes terminal switch board, low-voltage distribution cabinet, medium voltage distribution cabinet and high-voltage distribution cabinet, the transformer has been arranged in the electric substation, and through the optimal design of case becomes the structure, the protection level that the case becomes and each group reaches IP54, and outdoor use is safe and reliable more.
In a specific embodiment, as shown in fig. 2, the integrated monitoring platform includes a data control system, and a switch and a wireless gateway respectively connected to the intelligent terminal, the switch receives data information transmitted by the internet, the wireless gateway receives data information transmitted by the wireless communication device, the data control system receives the data information, integrates and stores the data information in a classified manner to provide a historical data query service, and performs fault alarm and pushing display of abnormal information according to the data information, the integrated monitoring platform includes a local monitoring end and a cloud end monitor, and cloud end data storage is implemented through an intelligent electricity safety management cloud platform, so that reliability of data is further improved;
in addition, the first and second substrates are,
the data control system is capable Of counting alarm information to form an SOE (Sequence Of Even, chronological recording).
In a specific embodiment, the intelligent internet of things system comprises:
the microcomputer protection device is arranged on a switch cabinet, a high-voltage power distribution cabinet or a medium-voltage power transformation cabinet of a transformer substation, and digital comprehensive protection, measurement and control of power distribution cabinets, switch cabinet electric lines and electric equipment are realized;
the digital bus arc light protection measurement and control device realizes monitoring of bus arc light faults in the switch cabinet;
the line protection device is used for realizing relay protection of the cable line sides of the substation and the switch cabinet;
the transformer protection device realizes non-electric quantity protection and longitudinal differential protection of the transformer, wherein the non-electric quantity protection comprises but is not limited to high-temperature and over-temperature protection of a dry type transformer and oil temperature and heavy gas protection of an oil type transformer; the wired temperature measuring device and the wireless temperature measuring device realize real-time monitoring of the temperatures of the soft lap joint part of the transformer, the lap joint point of the horizontal bus and the vertical bus, the lap joint point of the circuit breaker and the vertical bus, the cable joint and the movable and static contacts of the vacuum circuit breaker.
The development of modern industry has higher and higher requirements on the safety and reliability of power supply. For electric equipment such as feeder cabinets of transmission lines, generators, motors, transformers and the like, the bridge function of the bus among the electric equipment is more and more important. The generation of arc light is manifold and the resulting consequences are also very severe. The artificial causes of arc light generation in switchgear are: entering a charged interval by mistake; misoperation of the isolating switch; forgetting to ground in the working area; forget to measure the voltage within the working area.
Technical reasons for the generation of arc light in switchgear are: equipment failure and misoperation of live equipment; after the equipment is normally overhauled, tools are omitted in the switch equipment; wrong wiring and bus bar connections; insulation aging and mechanical wear, over-voltage, small animals, dust, temperature, humidity, corrosion, etc.
The technical reasons for the generation of arc light in the operation of switchgear are: a large number of arc light fault accidents of the switch cabinet in operation are caused by that the insulation material is affected by the environmental conditions to be damped, and condensation and attached dirt are generated on the insulation surface of equipment, so that the insulation level of the equipment is reduced to cause the accidents.
The rapid increase in pressure and temperature in switchgear caused by arcing due to a faulty switchgear cable spacing, if cut out in time, can cause significant damage in several ways:
firstly, the temperature of the electric arc is 2 times of the solar temperature and is approximately 10000 ℃, and copper bars and aluminum bars are melted and gasified due to overheating;
secondly, the cable is melted down, and a cable coating layer is ignited;
the pressure is increased due to overheating, so that the switch equipment is exploded;
the switch equipment strongly vibrates to loosen the fixed element;
burning skin at high temperature and stabbing eyes with strong light;
sixthly, a large amount of harmful gas is generated to hurt the respiratory system;
seventh, the rupture sound damages eardrum and lung;
flying fragments to cause injury and even death of people.
The severity of arc fault damage depends on arc current and arc removal time, and the energy generated by the arc rises exponentially and rapidly with I2 t. The device is not damaged until the total ablation time is less than 85ms, which is more than 100ms and will cause different degrees of damage to the device.
The adoption of arc protection in medium and low voltage switch cabinets has the following advantages:
(1) nearby workers are protected from being damaged by the arc short circuit fault;
(2) the medium-voltage and low-voltage switch equipment is protected from being seriously damaged, and the occurrence of fire is prevented;
(3) the expensive main transformer or the service transformer is protected from being damaged by short-circuit current impact;
(4) the direct current system for the spread station is prevented, and huge economic loss is avoided;
(5) the power failure time of the user is reduced to the maximum extent. The power failure recovery time of the user can be reduced to be within several hours from the original 2 days to 3 weeks;
(6) the service life of the existing switch equipment is prolonged, and the investment of replacing the switch equipment is delayed.
In a specific embodiment, the digital bus arc light protection and measurement and control system is composed of a digital bus arc light protection and measurement and control device, a sensor auxiliary unit, an arc light sensor and a connecting cable, wherein,
the digital bus arc light protection measurement and control device adopts an advanced embedded controller, is a main unit of an arc light protection system, and is used for realizing complete protection function and comprehensive and accurate measurement and control function. The arc protection system main unit issues a trip command to remove the arc fault when the arc fault occurs. When the circuit breaker can not remove the fault, it will start the circuit breaker failure protection logic, send out the order to remove the superior circuit breaker;
the auxiliary sensor unit is connected with the digital bus arc light protection measurement and control device, receives action information from the arc light sensor and transmits the action information to the digital bus arc light protection measurement and control device, and positions and displays address codes of the auxiliary sensor unit and the arc light sensor, so that the auxiliary sensor unit is favorable for timely and accurately positioning a fault switch cabinet and provides conditions for maintenance;
the arc sensor is arranged in a bus chamber of a switch cabinet or a power distribution cabinet, serves as a light sensing element, detects arc information in arc faults occurring in the bus chamber, and transmits signals to the sensor auxiliary unit, and generally one arc sensor is arranged in the switch cabinet or the power distribution cabinet at intervals.
In one possible implementation mode, the wired temperature measuring device comprises closed bus monitoring equipment which is arranged in a bus station and used for monitoring the bus temperature and transmitting information to the comprehensive monitoring platform through the internet;
the wireless temperature measuring device comprises a distributed optical fiber temperature measuring device, and is arranged at the positions of a horizontal bus and vertical bus lap joint point, a circuit breaker and a vertical bus lap joint point, a cable connector and a switch contact point, and the temperature of an important node is monitored.
In a specific embodiment, the intelligent internet of things system further comprises:
the electric energy metering device is used for measuring and metering the generated energy and/or the electricity consumption of the load end of a power supply manufacturer;
the power quality monitoring device detects various indexes of power quality in real time, including power grid frequency, voltage deviation, three-phase voltage unbalance, public power grid harmonic waves, public power grid inter-harmonic waves, fluctuation and flicker, and transmits the detection result to the comprehensive monitoring platform in real time;
the motor protection device realizes comprehensive protection control of motor loops in a substation, a switch cabinet and a power distribution cabinet, and gives an alarm and protects the motor when the motor fails;
the harmonic wave treatment device is used for reducing harmonic wave current and increasing the effective capacity of the transformer.
In one possible implementation manner, the intelligent internet of things system further includes: the switch aging monitoring equipment realizes the analysis and prediction of the switch health state, comprises a tripping module, an energy storage module and an operating mechanism sensor, and in addition,
the switch degradation detection apparatus further comprises a hall sensor, wherein,
the intelligent tripping module and the energy storage module are used for executing switch-off operation according to signals issued by the comprehensive monitoring platform so as to realize remote control of a target switch, the Hall sensor is used for detecting the state of a secondary device of the circuit breaker, wherein,
the breaker mechanism states include: stroke, switching-on/switching-off speed, switching-on overshoot and switching-off rebound state;
the secondary device state of the circuit breaker comprises an energy storage motor state, current energy storage time of a closing/opening coil and closing/opening time;
the comprehensive monitoring platform predicts the service life of the switch according to the state of the circuit breaker mechanism and/or the state of the secondary device of the circuit breaker, and sends out a control circuit breaker to be switched on or switched off according to a prediction result or a user instruction.
In a specific embodiment, the microcomputer protection device, the digital bus arc light protection measurement and control device, the line protection device, the transformer protection device, the wired temperature measurement device, the wireless temperature measurement device, the electric energy metering device, the electric energy quality monitoring device and the motor protection device are respectively in communication connection with the communication manager.
In a specific embodiment, the communication manager communicates with the intelligent terminal and the integrated monitoring platform through a 5G internet, a 4G internet, a mobile hotspot, a local area network or an LoRa data transmission system.
As shown in fig. 3, a computer system suitable for implementing the data control system of the intelligent substation integrated monitoring system provided in the above embodiment includes a Central Processing Unit (CPU), which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) or a program loaded from a storage section into a Random Access Memory (RAM). In the RAM, various programs and data necessary for the operation of the computer system are also stored. The CPU, ROM, and RAM are connected thereto via a bus. An input/output (I/O) interface is also connected to the bus.
An input section including a keyboard, a mouse, and the like; an output section including a speaker and the like such as a Liquid Crystal Display (LCD); a storage section including a hard disk and the like; and a communication section including a network interface card such as a LAN card, a modem, or the like. The communication section performs communication processing via a network such as the internet. The drive is also connected to the I/O interface as needed. A removable medium such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive as necessary, so that a computer program read out therefrom is mounted into the storage section as necessary.
In particular, the processes described in the above flowcharts may be implemented as computer software programs according to the present embodiment. For example, the present embodiments include a computer program product comprising a computer program tangibly embodied on a computer-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication section, and/or installed from a removable medium.
The flowchart and schematic diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to the present embodiments. In this regard, each block in the flowchart or schematic diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the schematic and/or flowchart illustration, and combinations of blocks in the schematic and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
On the other hand, the present embodiment also provides a nonvolatile computer storage medium, which may be the nonvolatile computer storage medium included in the apparatus in the foregoing embodiment, or may be a nonvolatile computer storage medium that exists separately and is not assembled into a terminal. The non-volatile computer storage medium stores one or more programs that, when executed by a device, cause the device to: the intelligent terminal is communicated with the communication management machine, receives the data information, integrates and stores the data information in a classified mode to provide historical data query service, and conducts fault alarm and abnormal information push display according to the data information.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is further noted that, in the description of the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and all obvious variations and modifications belonging to the technical scheme of the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides an intelligent substation synthesizes monitored control system which characterized in that includes: the system comprises a comprehensive monitoring platform and an intelligent terminal, wherein the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager;
the intelligent terminal comprises an intelligent Internet of things system and is used for realizing microcomputer protection, arc light protection, line protection, transformer protection, temperature monitoring, motor protection, electric energy metering and electric energy quality monitoring;
the comprehensive monitoring platform is communicated with the intelligent terminal through a communication manager, receives and processes data information acquired by the intelligent Internet of things system, and performs fault alarming and protection according to a processing result.
2. The system of claim 1,
the intelligent terminal is arranged in a place at least comprising one of a power distribution cabinet, a switch cabinet and a substation.
3. The system of claim 1,
the comprehensive monitoring platform comprises a data control system, a switch and a wireless gateway, wherein the switch and the wireless gateway are respectively connected with the intelligent terminal, the switch receives data information transmitted by the Internet, the wireless gateway receives data information transmitted by wireless communication equipment, the data control system receives the data information, integrates and stores the data information in a classified mode so as to provide historical data query service, and fault alarm and abnormal information push display are carried out according to the data information.
4. The system of claim 3, wherein the intelligent internet of things system comprises:
the microcomputer protection device realizes digital comprehensive protection, measurement and control of electric circuits and electric equipment of the power distribution cabinet and the switch cabinet;
the digital bus arc light protection measurement and control system realizes monitoring of bus arc light faults in the switch cabinet;
the line protection device is used for realizing relay protection of the cable line sides of the substation and the switch cabinet;
the transformer protection device realizes non-electric quantity protection and longitudinal differential protection of the transformer, wherein the non-electric quantity protection comprises high-temperature and over-temperature protection of a dry type transformer and oil temperature and heavy gas protection of an oil type transformer;
the wired temperature measuring device and the wireless temperature measuring device realize real-time monitoring of the temperatures of the soft lap joint part of the transformer, the lap joint point of the horizontal bus and the vertical bus, the lap joint point of the circuit breaker and the vertical bus, the cable joint and the movable and static contacts of the vacuum circuit breaker.
5. The system of claim 4,
the digital bus arc light protection measurement and control system comprises a digital bus arc light protection measurement and control device, a sensor auxiliary unit, an arc light sensor and a connecting cable, wherein the sensor auxiliary unit is connected to the digital bus arc light protection measurement and control device, receives action information from the arc light sensor and transmits the action information to the digital bus arc light protection measurement and control device; the arc sensor is used for detecting arc information when arc faults occur to target equipment; the digital bus arc light protection measurement and control device positions and displays the address codes of the sensor auxiliary unit and the arc light sensor, thereby being beneficial to timely and accurately positioning the fault switch cabinet and providing conditions for maintenance.
6. The system of claim 4, wherein the intelligent internet of things system further comprises:
the electric energy metering device is used for measuring and metering the electric parameters of the generated energy and/or the electricity consumption of the load end of a power supply manufacturer;
the power quality monitoring device detects various indexes of power quality in real time, including power grid frequency, voltage deviation, three-phase voltage unbalance, public power grid harmonic waves, public power grid inter-harmonic waves, fluctuation and flicker, and transmits the detection result to the comprehensive monitoring platform in real time;
the motor protection device realizes comprehensive protection control of motor loops in a substation, a switch cabinet and a power distribution cabinet, and gives an alarm and protects the motor when the motor fails;
the harmonic wave treatment device is used for reducing harmonic wave current and increasing the effective capacity of the transformer.
7. The system of claim 6,
the intelligent internet of things system further comprises: and the switch aging monitoring equipment realizes the analysis and prediction of the switch health state.
8. The system of claim 7,
the switch aging detection equipment comprises an intelligent tripping module, an energy storage module and an operating mechanism sensor, wherein the tripping module and the energy storage module are used for executing switch disconnection operation according to signals issued by the comprehensive monitoring platform, so that the remote control of a target switch is realized, and the operating mechanism sensor is used for monitoring the state of a circuit breaker mechanism.
9. The system of claim 8,
the microcomputer protection device, the digital bus arc light protection measurement and control device, the line protection device, the transformer protection device, the wired temperature measurement device, the wireless temperature measurement device, the electric energy metering device, the electric energy quality monitoring device and the motor protection device are respectively in communication connection with the communication manager.
10. The system of claim 9,
the communication management machine is communicated with the intelligent terminal and the comprehensive monitoring platform through a 5G internet, a 4G internet, an action hotspot, a local area network or a LoRa data transmission system.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114976922A (en) * | 2022-06-01 | 2022-08-30 | 石家庄章思科技有限公司 | Device and system for determining safety event of power monitoring system |
| CN114976922B (en) * | 2022-06-01 | 2023-10-24 | 石家庄章思科技有限公司 | Device and system for determining safety event of power monitoring system |
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