CN106208023A - A kind of single-phase arc overvoltage based on metallic ground principle limits device - Google Patents
A kind of single-phase arc overvoltage based on metallic ground principle limits device Download PDFInfo
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- CN106208023A CN106208023A CN201610822479.6A CN201610822479A CN106208023A CN 106208023 A CN106208023 A CN 106208023A CN 201610822479 A CN201610822479 A CN 201610822479A CN 106208023 A CN106208023 A CN 106208023A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 238000011156 evaluation Methods 0.000 claims abstract description 19
- 238000005457 optimization Methods 0.000 claims abstract description 18
- 230000008030 elimination Effects 0.000 claims abstract description 8
- 238000003379 elimination reaction Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000001012 protector Effects 0.000 claims abstract description 7
- 238000005265 energy consumption Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000008447 perception Effects 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 235000019800 disodium phosphate Nutrition 0.000 claims description 3
- 230000005059 dormancy Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000005562 fading Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000013144 data compression Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000002922 simulated annealing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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- H02J13/0006—
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of single-phase arc overvoltage based on metallic ground principle limits device; including monitoring modular and restriction device; described monitoring modular includes that performance evaluation unit, network choose unit and network optimization unit, described restriction device include high voltage isolator BD, harmonic elimination apparatus GDQ, intelligent controller GDM, with the auxiliary voltage transformer pt of Secondary Winding, high-voltage and current-limitation fuse assembly FU, can the high-pressure vacuum contactor JZ and three phase combined over-voltage protector GDB of individual-phase control；According to user, this device can require that relevant device is moved back in throwing, introduce the magnitude of current as criterion, it is achieved multiple blocking function, it is ensured that network system is powered reliably.
Description
Technical field
The invention relates to technical field of electric power, is specifically related to a kind of single-phase arc light based on metallic ground principle the most electric
Pressure limits device.
Background technology
China 35kV following electrical network great majority use the neutral point indirect earthing method of operation.Work as neutral point indirect earthing
During system generation single-phase intermittent arc earthing fault, electric arc the most constantly extinguishes and restrikes, and causes on system direct-to-ground capacitance
Electric charge the most constantly accumulate and redistribute, the inductor-capacitor loop of healthy phases causes higher-order of oscillation overvoltage.
The overvoltage of amplitude exacerbates the accumulation of the solid insulations such as cable and destroys, and arc grounding over-voltage also will simultaneously
Causing PT or fuse melting, even more serious will cause Explosion of on Arrester.
Solve arc grounding problem and use change system neutral earthing mode in early time, utilize small resistor to connect
Ground, sacrifices power supply reliability and solves arc grounding, develops into employing arc suppression coil principle later, utilizes the electricity of inductance and electric capacity
Voltage-current characteristic is different, uses inductive current to compensate capacitance current, owing to arc grounding is high frequency content, so designing by power frequency
Arc suppression coil cannot compensate high frequency electric, also will produce many side effect, such as: route selection is not due to the access of coil on the contrary
Standard, easily produces resonance, transferring over-voltage etc..
Summary of the invention
The purpose of the invention is to solve above-mentioned weak point of the prior art and provides a kind of and connect based on metal
The single-phase arc overvoltage of ground principle limits device.
The purpose of the invention is achieved through the following technical solutions:
A kind of single-phase arc overvoltage based on metallic ground principle limits device, including monitoring modular and restriction device,
Described monitoring modular includes that performance evaluation unit, network choose unit and network optimization unit, and described restriction device includes high pressure
Disconnecting switch BD, harmonic elimination apparatus GDQ, intelligent controller GDM, with the auxiliary voltage transformer pt of Secondary Winding, high pressure
Limiting fuse assembly FU, can the high-pressure vacuum contactor JZ and three phase combined over-voltage protector GDB of individual-phase control.
Preferably, monitoring modular uses wireless sensor network to monitor operation of power networks in real time, wireless sensor network
Network uses zigbee agreement to carry out data communication；
A, performance evaluation unit, set up the two-stage appraisement system being analyzed Monitoring Performance, sets up according to evaluation object
Comprehensive evaluation index, one-level evaluation object is user's perceptual performance, network aware performance and node perceived performance, user's perceptibility
The two-level appraisement object of energy is monitoring network life cycle, perceived accuracy and perception time delay, the two-level appraisement of network aware performance
Object is the monitoring network coverage, energy expenditure and transmission reliability, and the two-level appraisement object of node perceived performance is node merit
Rate control, dormancy mechanism and time synchronized；
B, network choose unit, according to the impact on comprehensive evaluation index of the heterogeneous networks topological structure, use clustered network
Topological structure；
C, network optimization unit, be optimized sensor network energy consumption, sets up subelement and energy optimization including model
Subelement；
Subelement set up by model: monitored area be radius be the circle of r, be evenly distributed with n sensor node in region, adopt
By fan-shaped sub-clustering heterogeneous network topology, base-station node is positioned at the center of circle, and leader cluster node is positioned at sector region center, bunch inner sensor joint
Point can only be with leader cluster node communication, and leader cluster node can only be with base-station node communication, and a bunch inner sensor node sends data to
Leader cluster node processes, and leader cluster node transfers data to base-station node after being compressed data processing；
Energy optimization subelement:
Distance is by transmitting the ENERGY E that 1 Bit data is consumed between the sensor node of dTFor:
In formula, EsTranstation mission circuit or the energy consumption of reception circuit, E when being transmission or recruiting unit's bitfIt it is free space channel
Energy needed for power amplification, E under modelmIt is energy, d needed for power amplification under multipath fading channels model0For Channel assignment threshold
Value, d0∈[80,95]；
It is E that leader cluster node merges the energy that the data of 1 bit are consumedd；
If the leader cluster node CT of certain bunch, perception radius is r, is d to base-station node distance, and the data acquisition range of this bunch is
Central angle is 2 θ, and radius is d+r, and inscribed circle radius is the sector region of d-r, a fan-shaped sensor in data acquisition range
Central angle corresponding for node deployment region S is d α, and the difference of interior outer radius is dx, then in this S region, sensor node number isThe square distance of distance leader cluster node CT is y2=x2+d2-2xdcos α, bunch interior nodes and leader cluster node away from
From less than d0, in bunch, all the sensors node is respectively transmitted b Bit data energy consumption E to leader cluster node CTinFor:
Leader cluster node CT receives, merges, transmits energy consumption E of dataoutFor:
Leader cluster node CT place bunch total energy consumption E in a data transferallFor:
Eall=Ein+Eout；
Using Swarm Intelligence Algorithm to be optimized transmission energy consumption, optimization aim is monitoring range, monitoring node number, perception
Radius and leader cluster node apart from these topological parameters, first understand these topological parameters to node cluster energy to base-station node
The impact of consumption, sets a Parameters variation, it is ensured that other parameter constants, draws the pass between node cluster energy consumption and running parameter
System, then uses Swarm Intelligence Algorithm to be iterated optimizing to it.
Preferably, the described all parameters of restriction device all use digitized to adjust.
Preferably, a described harmonic elimination apparatus GDQ is loaded between winding neutral point of voltage transformer pt and ground.
Preferably, described intelligent controller GDM uses dual CPU, and host CPU uses 32 bit DSPs to be core.
Preferably, described intelligent controller GDM includes communication interface RS485, CAN, it is possible to moment monitoring system state,
The abnormal operating condition occurred is made and being judged accurately, and can precise acquisition show the various parameter of power system.
Preferably, the supply voltage of described intelligent controller GDM is DC220V/110V ± 10%.
Preferably, described voltage transformer pt has high-performance anti-saturation, and its parameter can be matched by user's requirement.
Preferably, described high-voltage and current-limitation fuse assembly FU can when electric current exceedes limit value quick fuse.
Preferably, described three phase combined over-voltage protector GDB is for limiting the overvoltage that device a variety of causes causes.
The beneficial effect of the invention:
1, electrical network is monitored by this invention, it is possible to find fault early, it is simple to take measures；
2, this invention wireless sensor network, with leader cluster node perception radius, communication distance, data compression ratio and transmission week
Phase is optimization aim, it is achieved that the minimality of network energy consumption and harmony, it is to avoid leader cluster node premature death, thus extends net
The life cycle of network；
3, this invention utilizes the data-handling capacity fast and accurately of Digital Signal Processing, it is achieved Fourier analysis, passes through
Analysis isoparametric to system busbar three-phase voltage and frequency, is accurately judged to electrical network arc grounding, transient process and single-phase gold
Belonging to ground connection, according to user, device can require that relevant device is moved back in throwing, introduce the magnitude of current as criterion, it is achieved multiple blocking function, really
Insurance system is powered reliably；
4, all parameters of this invention all use digitized to adjust, and have abandoned the simulated annealing method of conventional potentiometer, have carried
The high reliability and stability of complete machine；
5, this invention has extremely strong anti-electromagnetic interference capability, it is possible to use in strongly disturbing complex environment；
6, this invention can provide blocking function in some special network system.
7, this invention can moment monitoring system state, to occur abnormal operating condition (arc grounding, metallic ground,
PT broken string etc.) make and judging accurately, and can precise acquisition show the various parameter of power system, it is not necessary to voltage is installed again
Table, ammeter etc. marks meter.
8, when system jam, it is possible to the data parameters of record instant of failure, it is simple to reference during maintenance, cause of accident
Analyze.
Accompanying drawing explanation
Utilize accompanying drawing that innovation and creation are described further, but the embodiment in accompanying drawing does not constitute and appoints the invention
What limits, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to the following drawings
Obtain other accompanying drawing.
Fig. 1 is the schematic diagram that the present invention limits device.
Reference: high voltage isolator BD-1；Harmonic elimination apparatus GDQ-2；Intelligent controller GDM-3；With auxiliary
The voltage transformer pt-4 of Secondary Winding；High-voltage and current-limitation fuse assembly FU-5；Can the high-pressure vacuum contactor JZ-of individual-phase control
6；Three phase combined over-voltage protector GDB-7.
Detailed description of the invention
The invention will be further described with the following Examples:
A kind of single-phase arc overvoltage based on metallic ground principle of the present invention limits device, including monitoring modular and restriction
Device, described monitoring modular includes that performance evaluation unit, network choose unit and network optimization unit, and described restriction device includes
High voltage isolator BD-1, harmonic elimination apparatus GDQ-2, intelligent controller GDM-3, mutual induction of voltage with auxiliary Secondary Winding
Device PT-4, high-voltage and current-limitation fuse assembly FU-5, can the high-pressure vacuum contactor JZ-6 of individual-phase control and three phase combined the most electric
Pressure protector GDB-7.
Preferably, monitoring modular uses wireless sensor network to monitor operation of power networks in real time, wireless sensor network
Network uses zigbee agreement to carry out data communication；
A, performance evaluation unit, set up the two-stage appraisement system being analyzed Monitoring Performance, sets up according to evaluation object
Comprehensive evaluation index, one-level evaluation object is user's perceptual performance, network aware performance and node perceived performance, user's perceptibility
The two-level appraisement object of energy is monitoring network life cycle, perceived accuracy and perception time delay, the two-level appraisement of network aware performance
Object is the monitoring network coverage, energy expenditure and transmission reliability, and the two-level appraisement object of node perceived performance is node merit
Rate control, dormancy mechanism and time synchronized；
B, network choose unit, according to the impact on comprehensive evaluation index of the heterogeneous networks topological structure, use clustered network
Topological structure；
C, network optimization unit, be optimized sensor network energy consumption, sets up subelement and energy optimization including model
Subelement；
Subelement set up by model: monitored area be radius be the circle of r, be evenly distributed with n sensor node in region, adopt
By fan-shaped sub-clustering heterogeneous network topology, base-station node is positioned at the center of circle, and leader cluster node is positioned at sector region center, bunch inner sensor joint
Point can only be with leader cluster node communication, and leader cluster node can only be with base-station node communication, and a bunch inner sensor node sends data to
Leader cluster node processes, and leader cluster node transfers data to base-station node after being compressed data processing；
Energy optimization subelement:
Distance is by transmitting the ENERGY E that 1 Bit data is consumed between the sensor node of dTFor:
In formula, EsTranstation mission circuit or the energy consumption of reception circuit, E when being transmission or recruiting unit's bitfIt it is free space channel
Energy needed for power amplification, E under modelmIt is energy, d needed for power amplification under multipath fading channels model0For Channel assignment threshold
Value, d0∈[80,95]；
It is E that leader cluster node merges the energy that the data of 1 bit are consumedd；
If the leader cluster node CT of certain bunch, perception radius is r, is d to base-station node distance, and the data acquisition range of this bunch is circle
Heart angle is 2 θ, and radius is d+r, and inscribed circle radius is the sector region of d-r, a fan-shaped sensor node portion in data acquisition range
Central angle corresponding for administration region S is d α, and the difference of interior outer radius is dx, then in this S region, sensor node number is
The square distance of distance leader cluster node CT is y2=x2+d2-2xdcos α, bunch interior nodes and leader cluster node distance are less than d0, in bunch
All the sensors node is respectively transmitted b Bit data energy consumption E to leader cluster node CTinFor:
Leader cluster node CT receives, merges, transmits energy consumption E of dataoutFor:
Leader cluster node CT place bunch total energy consumption E in a data transferallFor:
Eall=Ein+Eout；
Using Swarm Intelligence Algorithm to be optimized transmission energy consumption, optimization aim is monitoring range, monitoring node number, perception
Radius and leader cluster node apart from these topological parameters, first understand these topological parameters to node cluster energy to base-station node
The impact of consumption, sets a Parameters variation, it is ensured that other parameter constants, draws the pass between node cluster energy consumption and running parameter
System, then uses Swarm Intelligence Algorithm to be iterated optimizing to it.
With leader cluster node perception radius, communication distance, data compression ratio and transmission cycle as optimization aim, it is achieved that network
The minimality of energy consumption and harmony, it is to avoid leader cluster node premature death, thus extend the life cycle of network.
Preferably, described restriction device rated voltage is 35kV, and rated current is 100A, and rated frequency is 50Hz.
Preferably, the described all parameters of restriction device all use digitized to adjust, and have abandoned the simulation of conventional potentiometer
Method of adjustment, improves the reliability and stability of complete machine.
A described harmonic elimination apparatus GDQ-2 is loaded on voltage transformer pt-4 one times between winding neutral point and ground, it is possible to anti-
Locking system resonance, eliminates resonance overvoltage, and protection voltage transformer avoids damaging, it is ensured that system safety operation.
Preferably, described intelligent controller GDM-3 uses dual CPU, and host CPU uses 32 bit DSPs to be core.
Described intelligent controller GDM-3 includes communication interface RS485, CAN, it is possible to moment monitoring system state, to going out
Existing abnormal operating condition (arc grounding, metallic ground, PT broken string etc.) is made and being judged accurately, and can precise acquisition also
The display various parameter of power system, it is not necessary to install voltmeter again, ammeter etc. marks meter.
Preferably, the supply voltage of described intelligent controller GDM-3 is DC220V/110V ± 10%.
Described voltage transformer pt-4 has high-performance anti-saturation, and its parameter can be selected by user or design requirement
Join.
Described high-voltage and current-limitation fuse assembly FU-5 can fuse when electric current exceedes limit value, when due to plant failure,
When the reasons such as maintenance commissioning staff's wiring cause device erroneous judgement, high-voltage and current-limitation fuse assembly FU-5 is fast fast thawing within 2ms
Disconnected, short circuit current is far from reaching maximum, does not results in any consequence, and the operation on network system does not affect.
Described three phase combined over-voltage protector GDB-7 is for limiting the overvoltage that device a variety of causes causes, it is possible to
Overvoltage before vacuum contactor JZ-6 action is limited in relatively low numerical value.
In actual application, once there is single-phase arc grounding in network system, and intelligent controller GDM-3 records event
Barrier various parameters at that time signal an alert, simultaneously intelligent controller GDM-3 discriminating fault types immediately and separate and to
The vacuum contactor JZ-6 of fault phase sends action command, and vacuum contactor JZ-6 completes to close circle action at about 20ms, intermittently
Property arc grounding be converted into metallic earthing therewith, intelligent controller GDM-3 can also according to customer requirement start external equipment.
If intelligent controller GDM-3 is set as the state of automatically replying by user, the time set according to user is automatically reset by device,
Making fault phase vacuum contactor by closing variation, device is the most properly functioning.
When network system generation metallic ground, intelligent controller GDM-3 signal an alert, intelligent controller simultaneously
GDM selects Guan Bi vacuum contactor JZ-6 by user's requirement or starts external equipment.If intelligent controller GDM-3 is set by user
Being set to the state of automatically replying, the time set according to user is automatically reset by device, make fault phase vacuum contactor by closing variation,
Device is the most properly functioning.
When network system occurs PT broken string, intelligent controller GDM-3 sends alarm signal.
Last it should be noted that, above example is only in order to illustrate the technical scheme of the invention, rather than to this
The restriction of bright creation protection domain, although having made to explain to the invention with reference to preferred embodiment, this area general
Logical it will be appreciated by the skilled person that the technical scheme of the invention can be modified or equivalent, without deviating from this
The spirit and scope of innovation and creation technical scheme.
Claims (10)
1. single-phase arc overvoltage based on metallic ground principle limits a device, including monitoring modular and restriction device, institute
State monitoring modular and include that performance evaluation unit, network choose unit and network optimization unit, described restriction device include high pressure every
Leave pass BD, harmonic elimination apparatus GDQ, intelligent controller GDM, with the auxiliary voltage transformer pt of Secondary Winding, high pressure limit
Flow fuse assembly FU, can the high-pressure vacuum contactor JZ and three phase combined over-voltage protector GDB of individual-phase control.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, monitors mould
Block uses wireless sensor network to monitor operation of power networks in real time, and wireless sensor network uses zigbee agreement number
According to communication；
A, performance evaluation unit, set up the two-stage appraisement system being analyzed Monitoring Performance, sets up comprehensive according to evaluation object
Evaluation index, one-level evaluation object is user's perceptual performance, network aware performance and node perceived performance, user's perceptual performance
Two-level appraisement object is monitoring network life cycle, perceived accuracy and perception time delay, the two-level appraisement object of network aware performance
For the monitoring network coverage, energy expenditure and transmission reliability, the two-level appraisement object of node perceived performance is node power control
System, dormancy mechanism and time synchronized；
B, network choose unit, according to the impact on comprehensive evaluation index of the heterogeneous networks topological structure, use clustered network topology
Structure；
C, network optimization unit, be optimized sensor network energy consumption, sets up subelement and energy optimization list including model
Unit；
Subelement set up by model: monitored area be radius be the circle of r, be evenly distributed with n sensor node in region, use fan
Shape sub-clustering heterogeneous network topology, base-station node is positioned at the center of circle, and leader cluster node is positioned at sector region center, and bunch inner sensor node is only
Can be with leader cluster node communication, leader cluster node can only be with base-station node communication, and a bunch inner sensor node sends data to a bunch head
Node processing, leader cluster node transfers data to base-station node after being compressed data processing；
Energy optimization subelement:
Distance is by transmitting the ENERGY E that 1 Bit data is consumed between the sensor node of dTFor:
In formula, EsTranstation mission circuit or the energy consumption of reception circuit, E when being transmission or recruiting unit's bitfIt it is free space channel model
Energy needed for lower power amplification, EmIt is energy, d needed for power amplification under multipath fading channels model0For Channel assignment threshold value, d0
∈[80,95]；
It is E that leader cluster node merges the energy that the data of 1 bit are consumedd；
If the leader cluster node CT of certain bunch, perception radius is r, is d to base-station node distance, and the data acquisition range of this bunch is the center of circle
Angle is 2 θ, and radius is d+r, and inscribed circle radius is the sector region of d-r, a fan-shaped sensor node in data acquisition range
Central angle corresponding to deployment region S is d α, and the difference of interior outer radius is dx, then in this S region, sensor node number isThe square distance of distance leader cluster node CT is y2=x2+d2-2xdcos α, bunch interior nodes and leader cluster node away from
From less than d0, in bunch, all the sensors node is respectively transmitted b Bit data energy consumption E to leader cluster node CTinFor:
Leader cluster node CT receives, merges, transmits energy consumption E of dataoutFor:
Leader cluster node CT place bunch total energy consumption E in a data transferallFor:
Eall=Ein+Eout；
Using Swarm Intelligence Algorithm to be optimized transmission energy consumption, optimization aim is monitoring range, monitoring node number, perception radius
And leader cluster node to base-station node apart from these topological parameters, first understand these topological parameters to node cluster energy consumption
Impact, sets a Parameters variation, it is ensured that other parameter constants, draws the relation between node cluster energy consumption and running parameter, so
It is iterated optimizing by rear employing Swarm Intelligence Algorithm.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, described limit
The all parameters of device processed all use digitized to adjust.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 restriction device, described one
Secondary harmonic elimination apparatus GDQ is loaded between winding neutral point of voltage transformer pt and ground.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, described intelligence
Can use dual CPU by controller GDM, host CPU uses 32 bit DSPs to be core.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, described intelligence
Communication interface RS485, CAN can be included by controller GDM, it is possible to moment monitoring system state, to the abnormal operating condition occurred
Make and judging accurately, and can precise acquisition show the various parameter of power system.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, described intelligence
The supply voltage of energy controller GDM is DC220V/110V ± 10%.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, described electricity
Pressure transformer PT has high-performance anti-saturation, and its parameter can be matched by user's requirement.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 limits device, described height
Pressure limiting fuse assembly FU can when electric current exceedes limit value quick fuse.
A kind of single-phase arc overvoltage based on metallic ground principle the most according to claim 1 restriction device, described three
Combined formula overvoltage protection device GDB is for limiting the overvoltage that device a variety of causes causes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798351A (en) * | 2019-10-30 | 2020-02-14 | 云南电网有限责任公司信息中心 | Power grid fault detection point deployment method based on PSO and ant colony-genetic algorithm |
| EP3874573A4 (en) * | 2018-12-19 | 2022-08-03 | Bourns, Inc. | Protection against ac voltage conditions |
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| CN202524078U (en) * | 2012-04-10 | 2012-11-07 | 安徽国科电力设备有限公司 | Arc suppression and overvoltage protection device controller |
| CN203192201U (en) * | 2013-02-01 | 2013-09-11 | 安徽工程大学 | Online monitoring system for high-voltage long-distance power transmission line |
| CN103401750A (en) * | 2013-07-16 | 2013-11-20 | 任炬 | Method for calculating service life of nodes and energy holes of wireless sensor network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3874573A4 (en) * | 2018-12-19 | 2022-08-03 | Bourns, Inc. | Protection against ac voltage conditions |
| US11984717B2 (en) | 2018-12-19 | 2024-05-14 | Bourns, Inc. | Protection against AC voltage conditions |
| CN110798351A (en) * | 2019-10-30 | 2020-02-14 | 云南电网有限责任公司信息中心 | Power grid fault detection point deployment method based on PSO and ant colony-genetic algorithm |
| CN110798351B (en) * | 2019-10-30 | 2022-07-29 | 云南电网有限责任公司信息中心 | Power grid fault detection point deployment method based on PSO and ant colony-genetic algorithm |
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| CN106208023B (en) | 2017-12-01 |
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