CN109193669A - A kind of power distribution network intelligence sharing of load regulating device - Google Patents
A kind of power distribution network intelligence sharing of load regulating device Download PDFInfo
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- CN109193669A CN109193669A CN201811392158.2A CN201811392158A CN109193669A CN 109193669 A CN109193669 A CN 109193669A CN 201811392158 A CN201811392158 A CN 201811392158A CN 109193669 A CN109193669 A CN 109193669A
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- 230000005611 electricity Effects 0.000 claims description 15
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Classifications
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y02E40/50—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
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The invention discloses a kind of power distribution network intelligence sharing of load regulating devices, the distribution low-voltage side applied to low-voltage power distribution station area.Background system calculates corresponding load switching strategy by acquiring installed distribution transformer load data, and apparatus of the present invention are sent to by communication network, the present apparatus by selected load switching to it is suitable it is separate on, distribution low-voltage side load is set to substantially remain in equilibrium state, line loss, transformer loss are reduced to reach, the purpose of extending transformer service life, improving power supply quality.
Description
Technical field
The present invention relates to distribution network technology fields, in particular to a kind of power distribution network intelligence sharing of load regulating device.
Background technique
The low-voltage network in China is with three-phase four-wire system mostly by 10kV/O.4kV transformer to customer power supply, is three
The supply network of phase productive power and single-phase load mixing electricity consumption.Since China's low-voltage network area coverage is wide, ring is run
Border is different, and power consumer is numerous and relatively disperses, and there are the unbalanced single-phase loads of a large amount of spatial and temporal distributions, even if by three-phase
Load is evenly distributed on A, B, C three-phase, and the consumption habit difference of resident and the randomness of load are strong, can equally be caused larger
Three-phase imbalance, improvement to three-phase imbalance phenomenon and management are time-consuming and laborious.Power load cannot be evenly distributed to each phase
On, it is the main reason for three-phase imbalance problem generates.
If power grid long-play in the case where three-phase imbalance is more serious, power supply and electricity consumption both sides will all be generated not
Benefit influences.Influence of the three-phase load unbalance to power distribution station mainly includes 4 aspects: 1) distribution transformer and route being caused to damage
Consumption increases；2) the supply voltage quality of heavily loaded phase is greatly reduced in power distribution station；3) causing the power output of distribution transformer reduces, electricity
It can decrease in efficiency；4) three-phase load unbalance operation causes distribution transformer zero-sequence current to increase, caused eddy-current loss
Distribution transformer running temperature is increased, its safety and service life are jeopardized.
Therefore, power distribution station three-phase load unbalance degree is reduced, power distribution station economic operation level and supply voltage are improved
Quality is urgent problem.
To solve the above problems, reinforce load management, it, will be in each phase of low-voltage circuit by artificial offline Load adjustment phase sequence
Load be balanced distribution.The three-phase electricity flow valuve at the operation maintenance personnel manual measurement a certain moment of power supply department, is counted by analysis
Calculate the three-phase imbalance situation to determine electricity consumption area.In order to relatively accurately determine the three-phase imbalance in each electricity consumption region
Situation, staff need long-term follow, each distribute-electricity transformer district of investigation, acquire transformer outlet data, count all kinds of power loads,
Finally by the calculating of a large amount of data and customer charge curve, reasonable commutation scheme is determined.The program is although to a certain degree
On can reduce the severity of power distribution station three-phase load unbalance, but due to the randomness and uncertainty of power load,
By can not manually carry out online adjustment in real time according to actual load unbalance condition, it is reliable inevitably to influence customer power supply
Property, and there is security risk to a certain extent.
In order to solve the above problem, Chinese patent Authorization Notice No. (CN207638340U) provides a kind of three-phase load unbalance
Self-checking device, it includes three-phase voltage acquisition unit, three-phase current acquisition unit, control unit, driving unit and electric current
Compensating unit；The three-phase voltage acquisition unit, for acquiring the bus voltage signal and biography of distribution transformer bus outgoing line side
Transport to described control unit；The three-phase current acquisition unit, for acquiring load current signal and being transmitted to the control list
Member；Described control unit is sent to the driving unit after handling the bus voltage signal and the load current signal；
The driving unit controls the current compensation unit and generates compensation electric current；The current compensation unit uses three level IGBT
Unit；The compensation electric current is transmitted to the transmission of electricity of the distribution transformer through LCL filter unit by the three level IGBT unit
On route.The invention has the advantages that design science, compatibility is strong, stability is good, power transmission efficiency is high low with production cost.The hair
Bright to need to increase compensation device, costly, control is difficult, and reliability is low, primarily directed to big power load.
Chinese patent Authorization Notice No. (CN206195358U) discloses a kind of three-phase load unbalance self-checking device,
Controller is connected with sample circuit unit, the bus of the sampling end connection three-phase electricity of sample circuit unit, and the power supply of controller connects
Mouth connects the bus of three-phase electricity by supply lines, and the control interface of controller connects silicon-controlled unit, each reactive compensation component
The bus for the three-phase electricity that is linked back.The three-phase load unbalance self-checking device of the utility model, dynamic switching unit is using controllable
Silicon is the fling-cut switch of core, by voltage, current over-zero detection control, guarantees to put into capacitor near voltage zero area
Group so as to avoid the generation of inrush phenomenon, and is cut off and is completed in current over-zero, avoids the appearance of transient overvoltage,
It is allowed to meet the requirement of the operating passing zero of capacitor, it is unrestricted additionally, due to silicon-controlled triggering times, standard may be implemented
Dynamic compensates, and the original A.C. contactor fling-cut switch of the effective solution big, switching that shoves has that spark, vibration be big, noise is rung
Etc. technical problems.But this device will appear the high problem of electric energy loss, and equipment volume is larger, not prompt enough, adjustment is inaccurate,
Reliability is low.
Summary of the invention
For the prior art, adjusts and fill the technical problem to be solved in the present invention is to provide a kind of power distribution network intelligence sharing of load
Set low to solve power supply reliability, electric energy loss is high, and power quality is unqualified and the unsafe problem of equipment.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of power distribution network intelligence sharing of load regulating device,
The device is set to the low-pressure side of power distribution station distribution transformer, i.e., between low voltage distribution transformer and customer charge, packet
It includes: for carrying out the switch unit of load switching and the control unit for being used for control switch；The switch unit includes 3 basic
Switch module, respectively corresponds A, B, C three-phase, and each basic switch module is mutually connected with single-phase output；The control
Unit includes communication module, embedded controller, input voltage measurement module, load current detection module and IGBT driving mould
Block, the embedded controller drive with communication module, input voltage measurement module, load current detection module, IGBT respectively
Module is electrically connected；The input voltage measurement module is connected with A, B, C three-phase input, the load current detection module and list
Phase output phase is electrically connected, and the IGBT drive module and basic switch module are electrically connected；Control unit is according to communication module
Load switching is provided and instructs the basic switch module opened in A, B, C three-phase, by the phase and list where basic switch module
Mutually output is connected, and realizes load switching.
Further, the basic switch module includes magnetic latching relay and electronic power switch, basic switch module
The control signal of magnetic latching relay and the start pulse signal of power electronic devices are controlled to A, B, C three-phase by driving circuit
Magnetic latching relay and electronic power switch controlled.
Further, the power distribution network intelligence sharing of load regulating device can be set as zero voltage switching mode and zero electricity
Switch mode is flowed, when described device is set as zero voltage switching mode, selection carries out when current mutually equal with target phase voltage
Switching；When device is set to zero current switching mode, select to switch over when load current is zero.
Further, the basic switch module includes four diodes D1, D2, D3, D4 and an IGBT device S, institute
State basic switch module be set as it is two-way open module and shutdown module, open IGBT device S, the phase voltage be in positive half cycle or
When being negative half period, this is mutually inputted can be connected to output；IGBT device S is turned off, when which is in positive half cycle or negative half period,
This is mutually inputted will disconnect with output.
Further, the communication module is used to receive the load switching instruction on backstage and sends out present apparatus operating status
Backstage is given, embedded controller after platform instruction, carries out load according to present input voltage and load condition upon receipt
Switching.
Further, the embedded controller is used to handle the data of communication module, acquisition system input voltage and negative
Electric current is carried, and turning on and off for each basic switch module is controlled by IGBT drive module.
Further, the input voltage measurement module is for detecting three-phase input voltage, for device in zero voltage switching
Optimum switching point is selected when mode.
Further, the load current detection module passes through communication mould for detecting load current, and by load current
Block is sent to backstage, and the load current detection module selects optimum switching point in zero current switching mode.
Further, IGBT drive module provides power amplification and signal isolation function, by turning on and off for controller
Basic switch module can be turned on and off after signal power amplification.
The beneficial effect of the present apparatus is:
(1) the power distribution network intelligence sharing of load regulating device based on power electronic technique, controls each terminal by system host and cuts
Change to it is suitable it is separate on, so that distribution low-voltage side load is substantially remained in equilibrium state.
(2) the basic switch module of switch unit use low-voltage combination switch design pattern, sufficiently merged magnetic keep after
The advantages of 2 kinds of devices of electric appliance and electronic power switch, intelligent balance three-phase load, commutation process not power down, energy conservation detraction effect
Significantly.
(3) volume of the device greatly reduces, and cost input substantially reduces.
(4) the device operating process can be realized power load phase sequence in the case of band carries and adjust without power failure, while above-mentioned behaviour
Make realization seamless switching, it is ensured that without surge during switch conduction, to meet without impact linear to low voltage electric network and load
It is required with no impact, ensures power supply reliability and quality of voltage.
In conclusion the popularization of the device, will greatly improve distribution operation stability and intelligence, Guo Wang company can be mentioned
Good supporting role is played in the requirement of smart grid out, improves the power factor of electricity supplying and using system and load, reduces equipment
Capacity and reduction investment；Reduce route and transformer loss, improves electric network active transmittability and transformer power output and its operation
Economic benefit；Voltage's distribiuting characteristic along improvement improves grid supply quality；Power network equipment heating is reduced, extends and uses the longevity
Life；Improve system stability, avoids that collapse of voltage and stability disruption accident occurs, improve system safety operation.The present apparatus is by institute
Select load switching to it is suitable it is separate on, so that distribution low-voltage side load is substantially remained in equilibrium state, to reach reduction route
The purpose of loss, transformer loss extend transformer service life, improve power supply quality.Communication module is for receiving backstage
Load switching instruction and by present apparatus operating status be sent to backstage, embedded controller upon receipt platform instruction after, root
Load switching is carried out according to present input voltage and load condition.Embedded controller is used to handle the data of communication module, adopts
Collecting system input voltage and load current, and turning on and off for each basic switch module is controlled by IGBT drive module.It is defeated
Enter voltage detection module for detecting three-phase input voltage, selects optimum switching point in zero voltage switching mode for device.It is negative
It carries current detection module and backstage, the load electricity is sent to by communication module for detecting load current, and by load current
Stream detection module selects optimum switching point in zero current switching mode.IGBT drive module provides power amplification and signal isolation
Turning on and off after signal power is amplified for controller can be turned on and off IGBT device by function.
Detailed description of the invention
Fig. 1 is a kind of schematic illustration of power distribution network intelligence sharing of load regulating device of the present invention；
Fig. 2 is the structural schematic diagram of switch unit of the present invention；
Fig. 3 is the structural schematic diagram of basic switch module of the present invention；
Fig. 4 is the structural schematic diagram of control unit of the present invention；
Fig. 5 is a kind of system block diagram of power distribution network intelligence sharing of load regulating device of the present invention.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing:
Embodiment one
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5: a kind of power distribution network intelligence sharing of load regulating device, the device are set to power distribution station
The low-pressure side of distribution transformer, i.e., between low voltage distribution transformer and customer charge, comprising: for carrying out load switching
Switch unit and the control unit for being used for control switch；The switch unit include 3 basic switch modules, respectively correspond A,
B, C three-phase, each basic switch module are mutually connected with single-phase output；Described control unit includes communication module, embedding
Enter formula controller, input voltage measurement module, load current detection module and IGBT drive module, the embedded controller
It is electrically connected respectively with communication module, input voltage measurement module, load current detection module, IGBT drive module；It is described defeated
Enter voltage detection module to be connected with A, B, C three-phase input, the load current detection module is mutually electrically connected with single-phase output, institute
It states IGBT drive module and basic switch module is electrically connected；Control unit is open-minded according to communication module offer load switching instruction
A, a basic switch module in B, C three-phase, the phase where basic switch module is connected with single-phase output, realizes load
Switching.Background system calculates corresponding load switching strategy by acquiring installed distribution transformer load data, and passes through communication
Network is sent to apparatus of the present invention, the present apparatus by selected load switching to it is suitable it is separate on, keep distribution low-voltage side load basic
It is maintained at equilibrium state, line loss, transformer loss is reduced to reach, extends transformer service life, improves power supply matter
The purpose of amount.
Communication module is used to receive the load switching instruction on backstage and present apparatus operating status is sent to backstage, insertion
Formula controller after platform instruction, carries out load switching according to present input voltage and load condition upon receipt.
Embedded controller is used to handle the data of communication module, acquisition system input voltage and load current, and passes through
IGBT drive module controls turning on and off for each basic switch module.
Input voltage measurement module is selected for device in zero voltage switching mode best for detecting three-phase input voltage
Switching point.
Load current detection module is sent to backstage by communication module for detecting load current, and by load current,
The load current detection module selects optimum switching point in zero current switching mode.
IGBT drive module provides power amplification and signal isolation function, and the signal power that turns on and off of controller is put
IGBT device can be turned on and off after big.
The handoff procedure is as follows, turns off the IGBT of current phase first, opens target phase after one section of dead time
IGBT。
Control unit is the core component that real-time online administers power distribution station three-phase load unbalance.It can real-time monitoring match
Low pressure side exports three-phase current unbalance situation, determines relevant constraint according to three-phase current unbalance degree limit value, meets
Setting condition then executes commutation decision；Then existed according to the distribution low-voltage side outlet three-phase current and each low-voltage load that acquire in real time
The electric current and phase sequence data of each load branch circuit of the automatic commutation device of line, optimized by genetic Optimization Algorithm be calculated it is each low
Press the optimal commutation instruction of the on-line automatic commutation device of load；The switch of last each on-line automatic commutation device of low-voltage load according to
The reliable opening and closing movement of control instruction completes conversion of each load branch circuit between different phase sequences in the state of not needing and having a power failure.
Embodiment two
As shown in Fig. 3 Fig. 5, basic switch module includes magnetic latching relay and electronic power switch, and basic switch module passes through
Driving circuit controls the control signal of magnetic latching relay and the start pulse signal of power electronic devices to the magnetic of A, B, C three-phase
Guard relay and electronic power switch are controlled.Basic switch module includes four diodes D1, D2, D3, D4 and one
IGBT device S, basic switch module are set as two-way and open module and shutdown module, open IGBT device S, which is in
When positive half cycle or negative half period, this is mutually inputted can be connected to output；Turn off IGBT device S, the phase voltage be in positive half cycle or
When negative half period, this is mutually inputted will disconnect with output.
Switch unit uses low-voltage combination switch design pattern, has sufficiently merged magnetic latching relay and electronic power switch
The advantages of 2 kinds of devices.Each combination switch unit includes 3 single-phase combination switches, respectively corresponds A, B, C three-phase.It is each single-phase
Combination switch includes magnetic latching relay and electronic power switch, and the control signal of magnetic latching relay is controlled by driving circuit
It can independently the magnetic latching relay to every phase and electronic power switch be controlled with the start pulse signal of power electronic devices,
So that the load branch circuit can be converted Free Switching between A, B, C three-phase, meet controllability requirement.For any one load branch
Road, magnetic latching relay when normal operation in an only phase are in closed state, at the magnetic latching relay in remaining two-phase
In off-state；Electronic power switch on three-phase is all in off state.When load commutation, if by a certain load branch circuit
On load change to B phase from A phase, first by A phase electronic power switch be connected, A phase electronic power switch conducting after will be in A phase
Magnetic latching relay disconnects；Then by control electronic power switch by load current on from the change of current of A phase to B phase；It is closed B later
Magnetic latching relay in phase turns off the electronic power switch in B phase after the magnetic latching relay closure in B phase.Load exists
A, the adjustment between remaining phase sequence of B, C three-phase is similar with aforesaid operations.Aforesaid operations process is without power failure, in the case of can be realized with carrying
The adjustment of power load phase sequence, while aforesaid operations realize seamless switching, it is ensured that without surge during switch conduction, thus to low pressure
Power grid and load meet linearly and without impact requirement without impact, ensure power supply reliability and quality of voltage.When normal operation
Magnetic latching relay is in closed state, provides current channel, magnetic latching relay resistance very little is substantially lossless；When commutation
Electronic power switch provides current channel, there is lesser on-state loss；Therefore the on-line automatic commutation device of low-voltage load works the phase
Between substantially without electric energy loss, meet non-destructive requirement.
Embodiment three
Power distribution network intelligence sharing of load regulating device is set as zero voltage switching mode and zero current switching mode, and device is set as
When zero voltage switching mode, selection switches over when current mutually equal with target phase voltage；Device is set to zero current and cuts
When mold changing formula, select to switch over when load current is zero.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (9)
1. a kind of power distribution network intelligence sharing of load regulating device, it is characterised in that: described device is set to the change of power distribution station distribution
The low-pressure side of depressor, i.e., between low voltage distribution transformer and customer charge, comprising: for carrying out the switch list of load switching
Member and the control unit for being used for control switch unit；
The switch unit includes 3 basic switch modules, respectively corresponds A, B, C three-phase, each basic switch module is equal
Mutually it is connected with single-phase output；
Described control unit include communication module, embedded controller, input voltage measurement module, load current detection module with
And IGBT drive module, the embedded controller respectively with communication module, input voltage measurement module, load current detection mould
Block, IGBT drive module are electrically connected；The input voltage measurement module is connected with A, B, C three-phase input, the load current
Detection module is mutually electrically connected with single-phase output, and the IGBT drive module and basic switch module are electrically connected；
Control unit provides load switching according to communication module and instructs the basic switch module opened in A, B, C three-phase, will
Phase where basic switch module is connected with single-phase output, realizes load switching.
2. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, which is characterized in that described to open substantially
Closing module includes magnetic latching relay and electronic power switch, and basic switch module controls magnetic latching relay by driving circuit
Control signal and power electronic devices start pulse signal to the magnetic latching relay and electronic power switch of A, B, C three-phase
It is controlled.
3. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, it is characterised in that: the power distribution network
Intelligent sharing of load regulating device can be set as zero voltage switching mode and zero current switching mode, and described device is set as zero
When voltage switch mode, selection switches over when current mutually equal with target phase voltage；Device is set to zero current switching
When mode, select to switch over when load current is zero.
4. a kind of power distribution network intelligence sharing of load regulating device according to claim 1 or 2, which is characterized in that the base
This switch module includes that four diodes D1, D2, D3, D4 and an IGBT device S, the basic switch module are set as two-way
Module and shutdown module are opened, IGBT device S is opened, it is corresponding when corresponding phase voltage is in positive half cycle or negative half period
Mutually input with output can be connected to；Turn off IGBT device S, when corresponding phase voltage is in positive half cycle or negative half period, the phase
Input will disconnect with output.
5. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, it is characterised in that: the communication mould
Block is used to receive the load switching instruction on backstage and sends the power distribution network intelligence sharing of load regulating device operating status
To backstage, embedded controller after platform instruction, carries out load according to present input voltage and load condition and cuts upon receipt
It changes.
6. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, it is characterised in that: described embedded
Controller is used to handle the data of communication module, acquisition system input voltage and load current, and passes through IGBT drive module control
Make turning on and off for the basic switch module.
7. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, it is characterised in that: the input electricity
Pressure detection module selects optimum switching point in zero voltage switching mode for device for detecting three-phase input voltage.
8. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, it is characterised in that: the load electricity
Stream detection module is sent to backstage, the load current inspection by communication module for detecting load current, and by load current
It surveys module and selects optimum switching point in zero current switching mode.
9. a kind of power distribution network intelligence sharing of load regulating device according to claim 1, it is characterised in that: IGBT drives mould
Block provides power amplification and signal isolation function, and turning on and off after signal power is amplified for controller can be turned on and off
Basic switch module.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110265888A (en) * | 2019-06-28 | 2019-09-20 | 贵阳研卓电子科技有限公司 | PDU power control system |
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