CN106655521A - Intelligent management system at power distribution unit area - Google Patents
Intelligent management system at power distribution unit area Download PDFInfo
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- CN106655521A CN106655521A CN201710104000.XA CN201710104000A CN106655521A CN 106655521 A CN106655521 A CN 106655521A CN 201710104000 A CN201710104000 A CN 201710104000A CN 106655521 A CN106655521 A CN 106655521A
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- 238000004891 communication Methods 0.000 claims abstract description 61
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 25
- 238000013480 data collection Methods 0.000 claims description 20
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000008901 benefit Effects 0.000 claims description 6
- 230000001131 transforming effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000009711 regulatory function Effects 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000012797 qualification Methods 0.000 claims 1
- 230000006870 function Effects 0.000 abstract description 9
- 238000004458 analytical method Methods 0.000 abstract description 3
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- 238000005259 measurement Methods 0.000 description 4
- 241001269238 Data Species 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
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- 230000000712 assembly Effects 0.000 description 1
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- 230000004888 barrier function Effects 0.000 description 1
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Classifications
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- H02J13/0006—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an intelligent management system at a power distribution unit area. The system comprises a data acquiring terminal, a communication system and a background master control system, wherein the data acquiring terminal is used for acquiringthe voltage, the current, the residual current and the fault information at the power distribution unit area field; the communication system is used for transmitting the data; and the background master control system is used for monitoring a running condition of the power distribution unit area in real time, and remotely operating the power distribution unit area.The system disclosed by the invention realizes the distribution transformation and power utilization information monitoring of a user, has basic functions of voltage qualified rate statistic and line loss analysis management, and is capable of selectively configuring capacitor automaticswitching, three-phase imbalance adjustment and distribution transformation status monitoring functions; the voltage, the current, the residual current and other basic data of a low-voltage line can be acquired in real time; the acquired unit area running status data is more accurate and reliable, so that a power supply company possesses scientific and accurate valid data in the line loss management, the voltage management, the power supply reliability management and other work.
Description
Technical field
The present invention relates to a kind of power distribution station intelligent management system, belongs to the electric integrated monitoring technology neck of power industry
Domain.
Background technology
In recent years, State Grid Corporation of China proposes the strong intelligent grid construction of reinforcement, improves sending out for electrical network intelligent level
Exhibition strategy, to power grid construction and management new, higher requirement is proposed.Labor management is in for current low-voltage power distribution station area
Backward state, researched and developed low-voltage power distribution station area intelligent monitoring, realize to platform area science, effectively, the management of intelligence.
At present, science, effective means are lacked in low-voltage power distribution station area management work to realize obtaining low-voltage circuit electricity
The basic datas such as pressure, electric current, residual current, can only by survey crew, by survey tools such as general-purpose, clamps on amperemeter to platform
Area carries out field survey, has both caused the waste of the resources such as human and material resources, there is potential safety hazard to a certain extent.Due to not
Monitor in real time can be accomplished, existed in real work and obtained data not in time, not comprehensively, not science the problems such as, cause power supply public
Department lacks science, accurate valid data in the work such as Controlling line loss, voltage management and reliability management of power supply.
The content of the invention
For the deficiencies in the prior art, the present invention proposes a kind of convenient management, realizes that electrical network is steady, reliability service matches somebody with somebody
Radio area intelligent management system.
The present invention solves its technical problem and adopts the technical scheme that：Power distribution station intelligent management system, is characterized in that, bag
Data collection station, communication system and background master system are included, the data collection station is to gather power distribution station scene
Voltage, electric current, residual current and fault message, to transmission data, the background master system is to reality for the communication system
When monitor the ruuning situation of power distribution station, and operation is remotely controlled to power distribution station.
Preferably, the background master system possess rate of qualified voltage statistics, line loss analyzing management, distribution transforming status monitoring,
Capacitor automatic switching and three-phase imbalance regulatory function.
Preferably, the communication system adopts GPRS public networks.
Further, the power distribution station intelligent management system also includes being arranged on the intelligent distribution transforming end at power distribution station scene
End, the intelligent distribution transformer terminals include data acquisition module, data processing module, control and operation module, communication module, idle
Compensating module and three-phase imbalance control module；The data acquisition module, data processing module, control and operation module and logical
Letter module is sequentially connected, and the data acquisition module is used for signals collecting, and the data processing module is used for the signal of collection
Carry out process and obtain controlled quentity controlled variable, the control is controlled operation, the communication module difference with operation module by controlled quentity controlled variable
It is connected with data collection station and communication system；The data processing module connects respectively the reactive compensation module and three-phase not
Balance control module；The reactive compensation module is used to realize the automatic switching to capacitor, and real-time monitoring capacitor bank
State；The three-phase imbalance control module is used to adjust three-phase imbalance benefit device to be controlled.
Preferably, the communication module includes RS485 communication modules and a GPRS communication modules, the RS485 communications
Module is connected with data collection station, the GPRS communication module access communications systems.
Preferably, the data collection station include being arranged on controller in platform area power distribution cabinet, data remote transmitting device and
Electric equipment operation environment data acquisition device, the metering electric energy meter being arranged in the power distribution cabinet mesolow outlet of platform area and residue electricity
Stream protector, and the line-failure indicator and electric terminal radio temperature sensor being arranged on platform area electrical equipment, institute
Electric equipment operation environment data acquisition device, metering electric energy meter, residual current operated protective device, line-failure indicator and the electricity stated
Gas contact radio temperature sensor is connected respectively with controller, and the controller is defeated by the data for gathering by data remote transmitting device
Go out；The electric equipment operation environment data acquisition device includes Temperature Humidity Sensor, water sensor, point-type sense cigarette device and letter
Number processing meanss, the output end of the Temperature Humidity Sensor, water sensor and point-type sense cigarette device is respectively connecting to the signal
The input of processing meanss；The output end of the signal processing apparatus is connected to the input of the controller.
Preferably, the signal processing apparatus include low pass filter, signal amplifier, photoisolator and drive buffering
Circuit, the input of the low pass filter respectively with temperature sensor, humidity sensor, water sensor and point-type sense cigarette device
Output end connection, the output end of low pass filter is connected with the input of signal amplifier, the output of the signal amplifier
End is connected with the input of photoisolator, and the output end of the photoisolator is connected with the input for driving buffer circuit,
It is described to drive the output end of buffer circuit to be connected with the input of controller module.
Preferably, the electric terminal radio temperature sensor includes temperature sensor, measuring circuit, logic control circuit
With 2.4G wireless transceiver circuits, the output end of the temperature sensor is connected with the input of measuring circuit, the measuring circuit
Output end be connected with the input of logic control circuit, the output end of the logic control circuit and 2.4G wireless transceiver circuits
Connection.
Preferably, the controller include ARM microprocessor and be connected with ARM microprocessor respectively memory,
RS485 interfaces, RS232 interfaces, NRF905 radio transmitting and receiving chips, LCD display and audible-visual annunciator, the ARM microprocessor
By RS485 interfaces respectively with electric equipment operation environment data acquisition device, metering electric energy meter, residual current operated protective device and line
Line fault indicator connects, ARM microprocessor by NRF905 radio transmitting and receiving chips and electric terminal radio temperature sensor without
Line connects, and ARM microprocessor is connected by RS232 interfaces with data remote transmitting device.
Preferably, the data remote transmitting device includes the 2nd GPRS communication modules.
The first GPRS communication modules and the 2nd GPRS communication modules adopt the built-in technical grade of LB-GPRS-320 types
GPRS communication modules.The module is to lower by full duplex RS-485 serial line interface and intelligent distribution transformer terminals or data collection station
The Various types of data such as communication, collection three-phase voltage, three-phase current, residual current, fault message, on off state；By GPRS on
Various types of data is transferred to background master system by network insertion Internet.
Beneficial effects of the present invention are as follows：
Present invention achieves distribution transforming, user power utilization information monitoring, possess rate of qualified voltage statistics, line loss analyzing management substantially
Function, and capacitor automatic switching, three-phase imbalance regulation, distribution transforming status monitoring function are optionally configured, can be to remote
Realize science, effective, intelligentized management in the power distribution station at end；Low-voltage circuit voltage, electric current, residual current can in real time be obtained
Etc. basic data；The platform area running state data of acquisition is more accurately and reliably so that electric company is in Controlling line loss, voltage management
Have science, accurate valid data with the work such as reliability management of power supply.Simultaneously in real time monitoring reduces allocated radio
Area's fault discovery and the time for processing, improve the reliability of operation of power networks.
The present invention is be combined with each other by data collection station and intelligent distribution transformer terminals and carries out signals collecting, processed and controlled,
More intelligent, informationization, can in real time obtain the basic datas such as low-voltage circuit voltage, electric current, residual current, to distribution transformer
Device carries out comprehensive monitoring, power distribution station line on off state, the switching state of capacitor, realizes the energy information of power distribution station
Collection, Power quality management and line loss analyzing calculating etc..Data collection station and intelligent distribution transformer terminals are communicated each other
And respectively by GPRS communication module access communications systems, this loop method to set up avoids traditional single communication mode when logical
Letter module cannot carry out the generation of distant place monitoring site when breaking down, it is ensured that data collection station and intelligent distribution transformer terminals and
The real-time Communication for Power performance of background master system.
Compared with prior art, the invention has the characteristics that：1st, high-pressure side analog quantity and quantity of state can be acquired,
And upload measurement data, status data, realize remote monitoring.2nd, benefit device can be adjusted to three-phase imbalance to be controlled, is realized
Switching action to capacitor bank, realizes that the mixing of three-phase total compensation, phase splitting compensation or three-phase total compensation in combination with phase splitting compensation is mended
Pattern is repaid, while being monitored to the state of capacitor bank.3rd, the control to outlet switch is capable of achieving with monitoring, outlet switch is matched somebody with somebody
RCD is put, with communication function and short circuit breaking capacity.4th, telecommunications will can be used in concentrator, collector
Breath is uploaded to background master system by telecommunication, realizes acquiring electric energy information, Power quality management and the line of power distribution station
Damage analytical calculation.5th, the ambient parameter in platform area power distribution cabinet is processed by electric equipment operation environment data acquisition device
Analysis, so as to detect the environmental change of electrical equipment.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of intelligent distribution transformer terminals of the present invention；
Fig. 3 is the structural representation of data collection station of the present invention；
Fig. 4 is the structural representation of electric equipment operation environment data acquisition device of the present invention；
Fig. 5 is the structural representation of electric terminal radio temperature sensor of the present invention；
Fig. 6 is the structural representation of controller of the present invention.
Specific embodiment
Clearly to illustrate the technical characterstic of this programme, below by specific embodiment, and with reference to its accompanying drawing, to this
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Additionally, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments being discussed and/or being arranged.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits to the description of known assemblies and treatment technology and process avoiding being unnecessarily limiting the present invention.
As shown in figure 1, a kind of power distribution station intelligent management system of the present invention, it includes data collection station, communication system
System and background master system, the data collection station is to gather the live voltage in power distribution station, electric current, residual current and event
Barrier information, to transmission data, the background master system is to the real-time operation feelings for monitoring power distribution station for the communication system
Condition, and operation is remotely controlled to power distribution station.
Preferably, the background master system possess rate of qualified voltage statistics, line loss analyzing management, distribution transforming status monitoring,
Capacitor automatic switching and three-phase imbalance regulatory function.
Preferably, the communication system adopts GPRS public networks.
As shown in Fig. 2 the power distribution station intelligent management system of the present invention also includes being arranged on the intelligence at power distribution station scene
Can distribution transformer terminals, the intelligent distribution transformer terminals include data acquisition module, data processing module, control with operation module, communicate
Module, reactive compensation module and three-phase imbalance control module；The data acquisition module, data processing module, control and behaviour
Make module and communication module is sequentially connected, the data acquisition module is used for signals collecting, and the data processing module is used for will
The signal of collection carries out process and obtains controlled quentity controlled variable, and the control is controlled operation with operation module by controlled quentity controlled variable, described logical
Letter module is connected respectively with data collection station and communication system；The data processing module connects respectively the reactive-load compensation mould
Block and three-phase imbalance control module；The reactive compensation module is used to realize the automatic switching to capacitor, and prison in real time
Survey the state of capacitor bank；The three-phase imbalance control module is used to adjust three-phase imbalance benefit device to be controlled.
Preferably, the communication module includes RS485 communication modules and a GPRS communication modules, the RS485 communications
Module is connected with data collection station, the GPRS communication module access communications systems.
As shown in Figure 3 and Figure 4, data collection station of the present invention includes the control being arranged in platform area power distribution cabinet
Device, data remote transmitting device and electric equipment operation environment data acquisition device, are arranged in the power distribution cabinet mesolow outlet of platform area
Metering electric energy meter and residual current operated protective device, and the line-failure indicator and electric terminal being arranged on platform area electrical equipment
Radio temperature sensor, described electric equipment operation environment data acquisition device, metering electric energy meter, residual current operated protective device,
Line-failure indicator and electric terminal radio temperature sensor are connected respectively with controller, and the controller passes through data remote
The data output that device will be gathered；The electric equipment operation environment data acquisition device includes that Temperature Humidity Sensor, water logging are passed
Sensor, point-type sense cigarette device and signal processing apparatus, the output end of the Temperature Humidity Sensor, water sensor and point-type sense cigarette device
It is respectively connecting to the input of the signal processing apparatus；The output end of the signal processing apparatus is connected to the controller
Input.This can in real time obtain the basic datas such as low-voltage circuit voltage, electric current, residual current；The platform area running status of acquisition
Data are more accurately and reliably so that electric company possesses in the work such as Controlling line loss, voltage management and reliability management of power supply
Science, accurate valid data.
As shown in figure 4, the signal processing apparatus include low pass filter, signal amplifier, photoisolator and driving
Buffer circuit, the input of the low pass filter respectively with temperature sensor, humidity sensor, water sensor and point-type sense
The output end connection of cigarette device, the output end of low pass filter is connected with the input of signal amplifier, the signal amplifier
Output end is connected with the input of photoisolator, and the output end of the photoisolator connects with the input for driving buffer circuit
Connect, it is described to drive the output end of buffer circuit to be connected with the input of controller module.
As shown in figure 5, the electric terminal radio temperature sensor includes temperature sensor, measuring circuit, logic control
Circuit and 2.4G wireless transceiver circuits, the output end of the temperature sensor is connected with the input of measuring circuit, the measurement
The output end of circuit is connected with the input of logic control circuit, output end and the 2.4G wireless receiving and dispatchings of the logic control circuit
Circuit connects.Wherein, temperature measurement range：- 55～+125, precision：± 0.5 DEG C (- 20～+80 DEG C), resolution ratio：0.0625
DEG C, the temperature survey cycle：About 75s, outdoor type transmission range：Less than 300 meters, radio frequency standard：IEEE802.15.4, while wirelessly
Temperature sensor can be prevented using (a length of 50mm of shell sizes, a width of 30mm, a height of 16mm) in integrated casing structure, its waterproof
Dirt, without external antenna, prevents from producing point discharge phenomenon under hyperbaric environment, and has extraction temperature probe, is adapted to temperature-measuring range
Environment less than 125 DEG C, another aspect compact, it is adaptable to which switch cabinet temperature hot junction is measured, measure dynamic in switch cubicle
The running temperature of contact, lead cable joint and bus tie point, and monitor outer high-tension apparatus connector temperature.Temperature sensor
Using AD7814 digital temperature sensors, encapsulated using SOT-23 or 8 pin μ SOIC, a built-in Band-gap Temperature Sensor and
One 10 ADC, for monitoring temperature reading and carrying out digital conversion, resolution ratio is 0.25 DEG C, and temperature measurement range is -40 DEG C
To+125 DEG C, temperature accuracy is ± 2 DEG C, and also with standby mode, power consumption can be down to 1 μ A under this pattern.
As shown in fig. 6, the controller include ARM microprocessor and be connected with ARM microprocessor respectively memory,
RS485 interfaces, RS232 interfaces, NRF905 radio transmitting and receiving chips, LCD display and audible-visual annunciator, the ARM microprocessor
By RS485 interfaces respectively with electric equipment operation environment data acquisition device, metering electric energy meter, residual current operated protective device and line
Line fault indicator connects, ARM microprocessor by NRF905 radio transmitting and receiving chips and electric terminal radio temperature sensor without
Line connects, and ARM microprocessor is connected by RS232 interfaces with data remote transmitting device.
NRF905 radio transmitting and receiving chips work in 915M frequency ranges using the nRF905 model chips of NORDIC companies, communicate
Stable, strong interference immunity, while having further the advantage that：(1) (frequency range is at present the free frequency of country to work in 915MHZ
Section), (2) receive sending function unification, and transmitting-receiving completes interrupt identification, (3) 170 channels, can meet multi-point communication and frequency hopping is logical
News demand, realizes that networking is communicated, and TDMA-CDMA-FDMA, 8/16 CRC check of (4) built in hardware, exploitation is simpler, and data are passed
Defeated reliable and stable, (5) operating voltage 1.9-3.6V, low-power consumption, standby mode only 2.5uA, (6) receiving sensitivity reaches -100dBm,
(7) transceiving mode switch time<650us, (8) can at most send every time 32 bytes of reception, and can software design patterns send/receive slow
Rush the byte of area's size 2/4/8/16/32, (9) module can software set address, when only receiving the machine address just can output data (carry
Indicate for interrupting), can directly connect various single-chip microcomputers and use, software programming is very convenient, the milliwatt of (10) maximum transmission power 10, sends out
Emission mode：Maximum current<30mA；Reception pattern：Electric current 12.2mA, (11) built-in SPI interface also can intend SPI by I/O mouth molds
Realize, up to 10M, (12) standard DIP spacing interface is easy to Embedded Application to highest SPI clock, and (13) size is compact, does not contain
Antenna 30mm*19mm；Standard configuration short cylinder antenna, can match other, (14) emission rate 50Kbps, and external antenna, field can
Depending on 200 meters of communication distance, indoor communications 3-6 layers are capable of achieving reliable communication, strong anti-interference performance.
Preferably, the data remote transmitting device includes GPRS communication modules or cdma communication module.
The residual current operated protective device is arranged in the power distribution cabinet mesolow outlet of platform area, replaces " the remaining electricity for adopting in the past
Stream time pulse relay+A.C. contactor " protected mode.It has 485 communication interfaces, it is adaptable to which three-phase and four-line neutral point directly connects
The low voltage electric network on ground, possesses the defencive functions such as overload, short-circuit, under-voltage, over-pressed, residual current, the disconnected neutral conductor, phase shortage, phase sequence；Also
Need to possess the functions such as the major parameter measurement of 400V electrical networks, failure logging, and with long-range point/close control, point/close signal output and
Communication interface, reaches low voltage electric network upgrading intelligent management.
Preferably, the data remote transmitting device includes the 2nd GPRS communication modules.
A GPRS communication modules of the present invention and the 2nd GPRS communication modules are using in LB-GPRS-320 types
Put technical grade GPRS communication modules.The module is to lower by full duplex RS-485 serial line interface and intelligent distribution transformer terminals or data
Acquisition terminal communicates, the Various types of data such as collection three-phase voltage, three-phase current, residual current, fault message, on off state；To upper
Internet is accessed by GPRS network Various types of data is transferred to into background master system.
Compared with prior art, the invention has the characteristics that：1st, high-pressure side analog quantity and quantity of state can be acquired,
And upload measurement data, status data, realize remote monitoring.2nd, benefit device can be adjusted to three-phase imbalance to be controlled, is realized
Switching action to capacitor bank, realizes that the mixing of three-phase total compensation, phase splitting compensation or three-phase total compensation in combination with phase splitting compensation is mended
Pattern is repaid, while being monitored to the state of capacitor bank.3rd, the control to outlet switch is capable of achieving with monitoring, outlet switch is matched somebody with somebody
RCD is put, with communication function and short circuit breaking capacity.4th, telecommunications will can be used in concentrator, collector
Breath is uploaded to background master system by telecommunication, realizes acquiring electric energy information, Power quality management and the line of power distribution station
Damage analytical calculation.5th, the ambient parameter in platform area power distribution cabinet is processed by electric equipment operation environment data acquisition device
Analysis, so as to detect the environmental change of electrical equipment.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this
Bright protection domain.
Claims (10)
1. power distribution station intelligent management system, is characterized in that, including data collection station, communication system and background master system,
The data collection station is to gather the live voltage in power distribution station, electric current, residual current and fault message, the communication system
System enters to monitor the ruuning situation of power distribution station in real time to transmission data, the background master system to power distribution station
Row straighforward operation.
2. power distribution station intelligent management system according to claim 1, is characterized in that, the background master system possesses electricity
Pressure qualification rate statistics, line loss analyzing management, distribution transforming status monitoring, capacitor automatic switching and three-phase imbalance regulatory function.
3. power distribution station intelligent management system according to claim 1 and 2, is characterized in that, the communication system is adopted
GPRS public networks.
4. power distribution station intelligent management system according to claim 3, is characterized in that, also existing including power distribution station is arranged on
The intelligent distribution transformer terminals of field, the intelligent distribution transformer terminals include data acquisition module, data processing module, control and operation mould
Block, communication module, reactive compensation module and three-phase imbalance control module；The data acquisition module, data processing module, control
System is sequentially connected with operation module and communication module, and the data acquisition module is used for signals collecting, the data processing module
Controlled quentity controlled variable is obtained for the signal of collection to be carried out into process, the control is controlled operation with operation module by controlled quentity controlled variable,
The communication module is connected respectively with data collection station and communication system；The data processing module connects respectively described idle
Compensating module and three-phase imbalance control module；The reactive compensation module is used for automatic switching of the realization to capacitor, and
The state of real-time monitoring capacitor bank；The three-phase imbalance control module is used to adjust three-phase imbalance benefit device to control
System.
5. power distribution station intelligent management system according to claim 4, is characterized in that, the communication module includes RS485
Communication module and a GPRS communication modules, the RS485 communication modules are connected with data collection station, and a GPRS leads to
Letter module access communications system.
6. power distribution station intelligent management system according to claim 3, is characterized in that, the data collection station includes setting
Controller, data remote transmitting device and electric equipment operation environment data acquisition device in Zhi Tai areas power distribution cabinet, is arranged on platform
Metering electric energy meter and residual current operated protective device in area's power distribution cabinet mesolow outlet, and the line being arranged on platform area electrical equipment
Line fault indicator and electric terminal radio temperature sensor, described electric equipment operation environment data acquisition device, metering
Electric energy meter, residual current operated protective device, line-failure indicator and electric terminal radio temperature sensor are connected respectively with controller,
The data output that the controller will be gathered by data remote transmitting device；The electric equipment operation environment data acquisition device bag
Include Temperature Humidity Sensor, water sensor, point-type sense cigarette device and signal processing apparatus, the Temperature Humidity Sensor, water logging sensing
The output end of device and point-type sense cigarette device is respectively connecting to the input of the signal processing apparatus；The signal processing apparatus it is defeated
Go out the input that end is connected to the controller.
7. power distribution station intelligent management system according to claim 6, is characterized in that, the signal processing apparatus include low
Bandpass filter, signal amplifier, photoisolator and drive buffer circuit, the input of the low pass filter respectively with temperature
The output end connection of sensor, humidity sensor, water sensor and point-type sense cigarette device, the output end and signal of low pass filter
Amplifier input connection, the output end of the signal amplifier be connected with the input of photoisolator, the photoelectricity every
Output end from device is connected with the input for driving buffer circuit, the output end and controller module of the driving buffer circuit
Input connects.
8. power distribution station intelligent management system according to claim 7, is characterized in that, the electric terminal wireless temperature is passed
Sensor include temperature sensor, measuring circuit, logic control circuit and 2.4G wireless transceiver circuits, the temperature sensor it is defeated
Go out end to be connected with the input of measuring circuit, the output end of the measuring circuit is connected with the input of logic control circuit, institute
The output end for stating logic control circuit is connected with 2.4G wireless transceiver circuits.
9. power distribution station intelligent management system according to claim 8, is characterized in that, the controller includes the micro- places of ARM
Reason device and be connected with ARM microprocessor respectively memory, RS485 interfaces, RS232 interfaces, NRF905 radio transmitting and receiving chips,
LCD display and audible-visual annunciator, the ARM microprocessor by RS485 interfaces respectively with electric equipment operation environmental data
Harvester, metering electric energy meter, residual current operated protective device and line-failure indicator connection, ARM microprocessor passes through NRF905
Radio transmitting and receiving chip is wirelessly connected with electric terminal radio temperature sensor, and ARM microprocessor is remote with data by RS232 interfaces
Pass device connection.
10. power distribution station intelligent management system according to claim 9, is characterized in that, the data remote transmitting device includes
2nd GPRS communication modules.
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| CN108629512A (en) * | 2018-05-04 | 2018-10-09 | 国家电网公司 | Agriculture city net platform becomes comprehensive electric energy quality management system and management method |
| CN109510221A (en) * | 2018-11-29 | 2019-03-22 | 国网安徽省电力有限公司滁州供电公司 | The device and method of three-phase imbalance adjustment based on power information acquisition system |
| CN110311467A (en) * | 2018-03-27 | 2019-10-08 | 龙岩亿隆电力设备有限公司 | A kind of novel intelligent distribution transformer terminals based on cloud platform |
| CN112332543A (en) * | 2020-11-05 | 2021-02-05 | 国网山东省电力公司德州供电公司 | Terminal data acquisition device and method for power distribution station area |
| CN114123499A (en) * | 2021-11-17 | 2022-03-01 | 安徽皖宏电气股份有限公司 | Intelligent power distribution system and method based on 5G |
| CN114267161A (en) * | 2021-12-24 | 2022-04-01 | 深圳供电局有限公司 | Equipment operation monitoring system |
| CN114500512A (en) * | 2022-01-29 | 2022-05-13 | 昆明易云电力技术有限公司 | Block chain artificial intelligence-based distribution room application technology |
| CN115664039A (en) * | 2022-12-27 | 2023-01-31 | 广东卓维网络有限公司 | Power distribution safety control system |
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