CN106374511A - Three-phase load balance control policy based on user load real-time measurement, and intelligent switching system - Google Patents
Three-phase load balance control policy based on user load real-time measurement, and intelligent switching system Download PDFInfo
- Publication number
- CN106374511A CN106374511A CN201610880298.9A CN201610880298A CN106374511A CN 106374511 A CN106374511 A CN 106374511A CN 201610880298 A CN201610880298 A CN 201610880298A CN 106374511 A CN106374511 A CN 106374511A
- Authority
- CN
- China
- Prior art keywords
- current
- user
- phase
- module
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a three-phase load balance control policy based on user load real-time measurement, and an intelligent switching system, and relates to the three-phase load balance control policy. The three-phase load balance control policy, which can realize distributed type load balance in a low-voltage power distribution zone area circuit, is a dispatching policy used for managing three-phase load imbalance of a low-voltage distribution network. According to the control policy, ''real-time dispatching'' with a relatively short dispatching period is realized in the power distribution zone area with relatively large user quantity, so that the load imbalance time of the low-voltage zone area is lowered; the circuit loss in the low-voltage zone area is realized; and ''low-voltage'' at the tail end of the distribution network is effectively managed.
Description
Technical field
The present invention relates to distribution technique field, more particularly, to a kind of three-phrase burden balance based on customer charge measurement in real time
Control strategy and intelligent exchange system.
Background technology
In low-voltage network system, there is single-phase, asymmetric, non-linear, impact load in a large number, due to early stage electrical network
, it may appear that a large amount of single-phase loads concentrate on one mutually or biphase situation, these unbalanced loads can make to join for design planning inconsiderate
Electric system produces three-phase imbalance, leads to the imbalance of electric power system three-phase voltage, electric current.
Electric design three-phase load unbalance is the problem of long-term objective reality.China's low-voltage network generally adopts
Three-phase four-wire power supply pattern, user mostly be single-phase load or single-phase with three-phase mixing load.The three-phase load of low-voltage network
Imbalance will lead to line loss to increase and " low-voltage " in line end.And the extensive intervention with distributed new,
The access of the single-phase new forms of energy of especially 220v, the three-phase load unbalance problem of low-voltage distribution network will be more prominent.
At present mainly by power distribution station is installed with reactive power compensation device or the artificial handss that user is carried out with commutation
Section solves the problems, such as three-phase imbalance；
But the current balance type that reactive power compensation device can only ensure transformer outlet side is installed, actual can not solve distribution line
The problem of road end " low-voltage ", nor effective line loss reducing distribution；
Manually commutation is carried out to user, can only solve the above problems to a certain extent, but the dynamic due to Distribution Network Load Data, therefore
Need the regular load to user to carry out artificial commutation, need to expend substantial amounts of manpower and materials, deficiency in economic performance.
Content of the invention
The present invention is directed to the problems referred to above it is proposed that a kind of control plan based on the three-phrase burden balance of customer charge measurement in real time
Omit and intelligent exchange system, can determine that by this control strategy the commutation of the automatic phase selecting switch being installed on each household is separate, with
Realize the distributed balancing the load of low-voltage power distribution station area circuit, solve the problems, such as line end " low-voltage ", make distribution network line
Loss is minimum.
The technical scheme is that and comprise the steps:
1), set up the nodal analysis method of the load of power distribution station；First whole load is divided into two parts, Part I is distance
Transformator farther out 90% user, Part II is the user apart from the nearer residue of transformator 10%；
Partition number is carried out to user, partition number according to distribution node with a distance from the circuit of distribution transformer, according to by remote and
Near order carries out subregion, and area code is by 01；
Yet further the user in each area is numbered, family number is by 01；
Wherein, using overall for Part II as last area；
Set up corresponding Array for structural body:
{
Area code: n;
Family number: m;
User's electric current: i_load;
User is separate: phase;
Instruction is separate: command
}
User electric current i_load is the real-time user's size of current adopting, and user is separate to be that current automatic phase selecting switch is corresponding
Separate, instruction is separate separate for storing the target switching corresponding to this user that control centre issues；
2), zone current value i_a, i_b, i_c in real-time detection, the same separate user's electric current that is in region is carried out
Plus and, and add that the electric current in a upper region is worth to i_a_sum, i_b_sum, i_c_sum respectively, and zoning electric current is average
Value i_sum_av=(i_a_sum+i_b_sum+i_c_sum)/3；Further calculate zone current degree of unbalancedness s_area=
(i_sum_max-i_sum_av)/3*100%；
Wherein i_a, i_b, i_c are respectively a, b, c phase current values in region；
3), judge whether region is last area, if it is, entering step 5)；
If not, judging the size of the s_area in region: if s_area > 30%, enter step 4)；If s_area≤30%,
Enter step 2)；
4) if this region has been carried out with scheduling switching twice, then enter step 5)；
If not, be in searching region electric current maximum mutually and electric current closest to (i_sum_max-i_sum_min)/2 use
Family, issues control instruction by control centre and switches to the separate of zone current minimum.
5), real-time detection every phase total current i_a, i_b, the size of i_c, and calculate every phase current meansigma methodss i_av=(i_
a+i_b+i_c)/3；Calculate current unbalance factor s=(i_max-i_av)/i_av*100% further；
Wherein i_a, i_b, i_c are a, b, c phase current size of the transformer outlet side of control centre's detection respectively；
I_max is the current maxima in i_a, i_b, i_c；
6), judge the size of platform area current unbalance factor s: if s > 10%, enter step 7);If s≤10%, enter step
8);
7), find that to be in electric current in last region maximum mutually and electric current is closest to the user of (i_max-i_min)/2, lead to
Cross control centre and issue control instruction and switch to minimum separate of zone current；Execution step 6)；
8), area code resets to 0, circulates execution step 2 every 15 minutes) arrive step 7).
In step 3), need to calculate the platform area current unbalance factor of one's respective area using the three-phase current in a upper region.
A kind of intelligent exchange system include control centre, be installed on each household enter line side automatic phase selecting switch and some regions
Current sensor,
Control centre is according to based on customer charge, in real time the three-phrase burden balance control strategy of measurement issues commutation and instructs to each
Automatic phase selecting switchs, and automatic phase selecting switch is communicated by gprs and control centre,
Zone current sensor is used for the three-phase current information of measured zone.
Described control centre is arranged on distribution transformer outlet side, and the three-phase voltage to transformer outlet side and electric current
Detected；
Described control centre includes gprs communication module, dsp control module, Hall voltage sensor module and Hall current sensing
Device module,
Gprs communication module is used for control centre and automatic phase selecting switchs into row data communication,
Dsp control module is used for the process of the process, the computing of control strategy and collection information of data,
Hall voltage sensor module is used for the detection of voltage, and Hall current sensor module is used for the detection of electric current.
Described automatic phase selecting switch includes Hall current sensor module, gprs communication module, dsp control module, 4p
Air switch and three identical switch modules,
Described Hall current sensor module is used for measuring user's electric current,
Gprs communication module is used for automatic phase selecting switch and row data communication enters in control centre,
Dsp control module is used for data processing and controlling switch module action,
Switch module is used for realizing disconnecting closed procedure to circuit,
One end of described air switch connects the terminals of electrical network, and the other end connects one end and the user zero of three switch modules
Line, the other end of three switch modules connects user's live wire.
Described switch module is made up of the igbt of two differential concatenations.
The invention provides a kind of three-phrase burden balance control strategy based on customer charge measurement in real time, intelligent commutation system
System provides the control program that control centre switchs to automatic phase selecting, it is possible to achieve the distributed load of low-voltage power distribution station area circuit
Balance, solves distribution line end " low-voltage " problem, so that whole platform area is run under low degree of unbalancedness, reduce distribution transforming platform
The line loss in area, improves the quality of power supply of low-voltage distribution network, creates economic benefit.
Brief description:
Fig. 1 is the control flow chart of the present invention,
Fig. 2 is the schematic diagram of intelligent commutation system,
Fig. 3 is the schematic diagram of automatic phase selecting switch,
Fig. 4 is the schematic diagram of switch module.
Specific embodiment
The present invention as Figure 1-4, comprises the steps:
1), set up the nodal analysis method of the load of power distribution station；First whole load is divided into two parts, Part I is distance
Transformator farther out 90% user, Part II is the user apart from the nearer residue of transformator 10%；
According to the method described above load be divided into two parts and be according to draw near distance distribution, so can accomplish whole area
The all fronts balance in domain.Using last 10% user as a part, it is to prevent according to executing following 2) -4) after step, whole
The degree of unbalancedness of individual distribute-electricity transformer district still difficult to reach sets requirement, therefore reserves 10% user for being adjusted to this situation.
Partition number is carried out to user, partition number according to distribution node with a distance from the circuit of distribution transformer, according to by
Remote and near order carries out subregion, and area code is by 01；
Yet further the user in each area is numbered, family number is by 01；
Wherein, using overall for Part II as last area；
Set up corresponding Array for structural body:
{
Area code: n;
Family number: m;
User's electric current: i_load;
User is separate: phase;
Instruction is separate: command
}
User electric current i_load is the real-time user's size of current adopting, and user is separate to be the closed phase of current automatic phase selecting switch
, instruction is separate separate for storing the target switching corresponding to this user that control centre issues；
2) a, region (area code: n-1) current value i_a, i_b, i_c in real-time detection, will be same for being in region (area code: n)
Separate user's electric current sums up, and adds that the electric current in a upper region (area code: n-1) is worth to i_a_sum, i_b_ respectively
Sum, i_c_sum, and zoning current average i_sum_av=(i_a_sum+i_b_sum+i_c_sum)/3；Further
Calculate zone current degree of unbalancedness s_area=(i_sum_max-i_sum_av)/3*100%；
Wherein i_a, i_b, i_c are respectively a, b, c phase current values in region；
3), judge whether region (area code: n) is last area, if it is, entering step 5)；
If not, judging the size of the s_area in region (area code: n): if s_area > 30%, enter step 4)；If s_
Area≤30%, enters step 2)；
4) if this region has been carried out with scheduling switching twice, then enter step 5)；
If not, be in searching region electric current maximum mutually and electric current closest to (i_sum_max-i_sum_min)/2 use
Family, issues control instruction by control centre and switches to the separate of zone current minimum.
Here judged whether to scheduling switching twice, relatively more crucial, because the user in some regions may be little,
In this case it is possible to user be carried out with commutation anyway, the current unbalance factor in this region all cannot be made to reach setting
Require.Because region above had been dispatched, current unbalance factor is less and the load of one's respective area is typically not over 10
Family, therefore typically switching just can reach requirement 1 to 2 times.
5), real-time detection every phase total current i_a, i_b, the size of i_c, and calculate every phase current meansigma methodss i_av=(i_
a+i_b+i_c)/3；Calculate current unbalance factor s=(i_max-i_av)/i_av*100% further；
Wherein i_a, i_b, i_c are a, b, c phase current size of the transformer outlet side of control centre's detection respectively；
I_max is the current maxima in i_a, i_b, i_c；
6), judge the size of platform area current unbalance factor s: if s > 10%, enter step 7);If s≤10%, enter step
8);
7), find that to be in electric current in last region maximum mutually and electric current is closest to the user of (i_max-i_min)/2, lead to
Cross control centre and issue control instruction and switch to minimum separate of zone current；Execution step 6)；
8), area code resets to 0, circulates execution step 2 every 15 minutes) arrive step 7).
Although the electricity consumption situation of each user is true change, generally, electricity consumption situation is not at short notice
Larger fluctuation can occur.On the other hand, for protection phase-change switch purpose, therefore dispatching cycle select 15 minutes.This
Sample on the premise of as far as possible few switching times, can reach the balancing the load of whole power distribution station.
In step 3), need to calculate the platform area current unbalance factor of one's respective area using the three-phase current in a upper region.
Step 1) need to set up the nodal analysis method of the load of power distribution station, and according to the distance with a distance from transformator and distribution section
User is first divided into two parts, then carries out partition number to all users of each several part respectively by point.
In step 4) and step 7), find user to be commutated and have the following characteristics that 1. this user is in electric current maximum phase；②
The electric current of this user is closest to (i_sum_max-i_sum_min)/2 or (i_max-i_min)/2；3. this user needs commutation to arrive electricity
Flow the separate of minimum.
A kind of intelligent commutation system, including control centre, be installed on each household enter line side automatic phase selecting switch and some areas
Domain current sensor,
Control centre is according to based on customer charge, in real time the three-phrase burden balance control strategy of measurement issues commutation and instructs to each
Automatic phase selecting switchs, and automatic phase selecting switch is communicated by gprs and control centre,
Zone current sensor is used for the three-phase current information of measured zone；In work, need to be with zone current sensor to each
Total three-phase current in region is detected.
Described control centre is arranged on distribution transformer outlet side, and the three-phase voltage to transformer outlet side and electric current
Detected；
Described control centre includes gprs communication module, dsp control module, Hall voltage sensor module and Hall current sensing
Device module,
Gprs communication module is used for control centre and automatic phase selecting switchs into row data communication,
Dsp control module is used for the process of the process, the computing of control strategy and collection information of data,
Hall voltage sensor module is used for the detection of voltage, and Hall current sensor module is used for the detection of electric current.
Described automatic phase selecting switch includes Hall current sensor module, gprs communication module, dsp control module, 4p
Air switch and three identical switch modules,
Described Hall current sensor module is used for measuring user's electric current,
Gprs communication module is used for automatic phase selecting switch and row data communication enters in control centre,
Dsp control module is used for data processing and controlling switch module action,
Switch module is used for realizing disconnecting closed procedure to circuit,
One end of described air switch connects the terminals of electrical network, and the other end connects one end and the user zero of three switch modules
Line, the other end of three switch modules connects user's live wire.
Described switch module is made up of the igbt of two differential concatenations.The control signal of dsp control module output is through driving
The closed and disconnected operation of controlling switch module after dynamic amplification.
Below in conjunction with the accompanying drawings the present invention is illustrated.
It is that the control signal of dsp control module is through overdriving by the switch module of two igbt differential concatenations as shown in Figure 4
Can be with the break-make of controlling switch module after amplification.The response speed of igbt break-make in us level, when dsp control module send disconnection or
During the control signal of person's closure, igbt can disconnect or closed circuit in several microseconds.
As shown in figure 3, automatic phase selecting switch main circuit be made up of three identical switch modules, the mode of connection be a, b,
C, n represent the terminals of electrical network respectively, and it is connected respectively to three switch modules and outlet n by the air switch of 4p, and l, n divide
Do not connect live wire and the zero line of user.The electric current of wherein l circuit flows through Hall current sensor, and Hall current sensor detects user
Electric current simultaneously passes to dsp control module, and dsp control module is processed to user's electric current of detection, and the electric current letter by this user
Breath, separate information that active user is located, by gprs communication module, data is radioed to the gprs module of control centre.With
This simultaneously, dsp control module can by gprs communication module accept from control centre commutation instruction.It is connected to commutation instruction
Afterwards, carry out commutation operation.For example: active user is connected on a phase, dsp control module receives the commutation instruction being switched to b phase, dsp
Control module first sends open command, switch module a open-circuit line to switch module a, and after 5us, dsp control module is to switching molding
Block b sends close command, and switch module b closes.Arrive this, automatic phase selecting switch completes the behaviour that load is switched to b phase from a phase
Make.In order to prevent three-phase shortcircuit, any time, switch module a, b, c at most can only have a module to be in closure state.
It is the schematic diagram of intelligent commutation system as shown in Figure 2, control centre is installed on transformer outlet side, mutual by electric current
Sensor n+1 detects the three-phase current of transformer outlet side and the electric current outputting it is serially connected with the Hall of control centre further
Current transformer.The information of detection is passed to the dsp module of control centre by Hall current transformer, and Hall voltage sensor will become
The three-phase voltage information of depressor outlet passes to dsp control module, and gprs module receives the real-time current of all users, currently separate
Etc. information.Dsp control module can be calculated currently according to based on the three-phrase burden balance control strategy of customer charge measurement in real time
Need the user of commutation and to be changed separate, afterwards the automatic phase selecting to relative users for the switching command is issued by gprs communication module
Switch, after automatic phase selecting switch receives instruction, completes commutation operation, commutation process is shown in Fig. 3 explanation.
In conjunction with shown in Fig. 1, based on the three-phrase burden balance control strategy flow chart of customer charge measurement in real time, to specific
Work process is described below.The nodal analysis method of the load of power distribution station set up, carries out partition number to user.As Fig. 2, incite somebody to action
User is divided into two large divisions, and Part I is divided into n area (area code: 1-n), and a distribution node is an area, wherein again will be every
The user in individual area is numbered (family number: 1-m).Part II forms (about 10% total customer volume) by the user near transformator,
And the user of this part is numbered (family number: 1-m).Current transformer 1 is installed on the outside in region 2, current transformer n-1
It is installed on the outside of region n.
Dispatch from the beginning of region 1, first detection zone 1, the size of current of user of family 1- family m and switch module closure
Separate, respectively user's electric current of a, b, c phase is sued for peace, and obtains the current unbalance factor in region 1.If electric current is uneven
Weighing apparatus degree is less than 30%, then region 2 is scheduling.If current unbalance factor be more than 30%, find region 1 in user's electric current
Close to (maximum phase current and-minimum phase current and)/2 and the user that is located in maximum phase is it is switched in electric current minimum phase.
Again current detecting is carried out to region 1, and obtain new current unbalance factor, judge current unbalance factor again, if electric current
Degree of unbalancedness, still greater than 30%, just presses preceding method commutation again.Detect again and calculating current degree of unbalancedness after commutation.Here
If be still unsatisfactory for the requirement that current unbalance factor is less than 30% after the same area had switched twice,
Do not continue to switch but subsequent region is scheduling.
Region 2 is scheduling, first detection zone 2, the size of current of user of family 1- family m and switch module close
Separate, respectively user's electric current of a, b, c phase is sued for peace, and a, b, c phase total current that current transformer 1 is detected is respectively
Be added to each phase user of aforementioned areas 2 electric current and in.And obtain the current unbalance factor in region 2.Current unbalance factor is carried out
Judge, and the operating procedure in repeat region one, until completing the scheduling to region n.
To Part II, i.e. last area, obtain total three-phase current in platform area by current transformer n+1, and ask
Go out total current unbalance factor.Judge whether current imbalance is less than 10%, if less than 10%, then whole distribute-electricity transformer district is completed
Once dispatch.If degree of unbalancedness is more than 10%, in searching Part II, user's electric current is closest to (maximum phase current and-minimum
Phase current and)/2 and the user that is located in maximum phase it is switched in electric current minimum phase.Carry out current detecting afterwards again and ask
Go out total current unbalance factor, and judged, repeat the switch step of this part.Until current unbalance factor is less than 10%.When
After whole distribute-electricity transformer district is completed once to dispatch, behind 15 points of interval, start scheduling operation from region 1 again.
Existing three-phrase burden balance control strategy, needs substantial amounts of calculating in the realization of algorithm at present, is not suitable for making
With microprocessors such as dsp or arm as controller.Compared with traditional three-phrase burden balance control strategy, in current imbalance
Degree reaches under same desired value, and three-phrase burden balance control strategy disclosed in this patent can accomplish that region completely balances, line
Damage can drop to the 6% of this control strategy with the 11% of Traditional control strategy.
Claims (6)
1. a kind of three-phrase burden balance control strategy based on customer charge measurement in real time is it is characterised in that comprise the steps:
1), set up the nodal analysis method of the load of power distribution station；First whole load is divided into two parts, Part I is distance
Transformator farther out 90% user, Part II is the user apart from the nearer residue of transformator 10%；Subregion is carried out to user
Numbering, partition number carries out subregion, area according to the order drawing near according to distribution node with a distance from the circuit of distribution transformer
Number by 01；
Yet further the user in each area is numbered, family number is by 01；
Wherein, using overall for Part II as last area；
Set up corresponding Array for structural body:
{
Area code: n;
Family number: m;
User's electric current: i_load;
User is separate: phase;
Instruction is separate: command
}
User electric current i_load is the real-time user's size of current adopting, and user is separate to be that current automatic phase selecting switch is corresponding
Separate, instruction is separate separate for storing the target switching corresponding to this user that control centre issues；
2), zone current value i_a, i_b, i_c in real-time detection, the same separate user's electric current that is in region is carried out
Plus and, and add that the electric current in a upper region is worth to i_a_sum, i_b_sum, i_c_sum respectively, and zoning electric current is average
Value i_sum_av=(i_a_sum+i_b_sum+i_c_sum)/3；Further calculate zone current degree of unbalancedness s_area=
(i_sum_max-i_sum_av)/3*100%；
Wherein i_a, i_b, i_c are respectively a, b, c phase current values in region；
3), judge whether region is last area, if it is, entering step 5)；
If not, judging the size of the s_area in region: if s_area > 30%, enter step 4)；If s_area≤30%,
Enter step 2)；
4) if this region has been carried out with scheduling switching twice, then enter step 5)；
If not, be in searching region electric current maximum mutually and electric current closest to (i_sum_max-i_sum_min)/2 use
Family, issues control instruction by control centre and switches to the separate of zone current minimum；
5), real-time detection every phase total current i_a, i_b, the size of i_c, and calculate every phase current meansigma methodss i_av=(i_a+i_
b+i_c)/3；Calculate current unbalance factor s=(i_max-i_av)/i_av*100% further；
Wherein i_a, i_b, i_c are a, b, c phase current size of the transformer outlet side of control centre's detection respectively；
I_max is the current maxima in i_a, i_b, i_c；
6), judge the size of platform area current unbalance factor s: if s > 10%, enter step 7);If s≤10%, enter step
8);
7), find that to be in electric current in last region maximum mutually and electric current is closest to the user of (i_max-i_min)/2, lead to
Cross control centre and issue control instruction and switch to minimum separate of zone current；Execution step 6)；
8), area code resets to 0, circulates execution step 2 every 15 minutes) arrive step 7).
2. a kind of three-phrase burden balance control strategy based on customer charge measurement in real time according to claim 1, it is special
Levy and be, in step 3), need to calculate the platform area current unbalance factor of one's respective area using the three-phase current in a upper region.
3. a kind of intelligent commutation system is it is characterised in that including control centre, being installed on the automatic phase selecting switch that each household enters line side
With some zone current sensors,
Control centre is according to based on customer charge, in real time the three-phrase burden balance control strategy of measurement issues commutation and instructs to each
Automatic phase selecting switchs, and automatic phase selecting switch is used for measured zone by gprs and control centre's communication, zone current sensor
Three-phase current information.
4. a kind of intelligent exchange system according to claim 3 is it is characterised in that described control centre is arranged on distribution change
Depressor outlet side, and the three-phase voltage and electric current of transformer outlet side is detected；
Described control centre includes gprs communication module, dsp control module, Hall voltage sensor module and Hall current sensing
Device module,
Gprs communication module is used for control centre and automatic phase selecting switchs into row data communication,
Dsp control module is used for the process of the process, the computing of control strategy and collection information of data,
Hall voltage sensor module is used for the detection of voltage, and Hall current sensor module is used for the detection of electric current.
5. a kind of intelligent exchange system according to claim 3 is it is characterised in that described automatic phase selecting switch includes Hall
Current sensor module, gprs communication module, dsp control module, the air switch of 4p and three identical switch modules,
Described Hall current sensor module is used for measuring user's electric current,
Gprs communication module is used for automatic phase selecting switch and row data communication enters in control centre,
Dsp control module is used for data processing and controlling switch module action,
Switch module is used for realizing disconnecting closed procedure to circuit,
One end of described air switch connects the terminals of electrical network, and the other end connects one end and the user zero of three switch modules
Line, the other end of three switch modules connects user's live wire.
6. a kind of intelligent exchange system according to claim 5 is it is characterised in that described switch module is reversely gone here and there by two
The igbt composition of connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610880298.9A CN106374511B (en) | 2016-10-09 | 2016-10-09 | A kind of three-phrase burden balance control strategy based on customer charge real-time measurement |
| PCT/CN2017/102075 WO2018064929A1 (en) | 2016-10-09 | 2017-09-18 | Three-phase load balancing control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610880298.9A CN106374511B (en) | 2016-10-09 | 2016-10-09 | A kind of three-phrase burden balance control strategy based on customer charge real-time measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106374511A true CN106374511A (en) | 2017-02-01 |
| CN106374511B CN106374511B (en) | 2019-05-21 |
Family
ID=57896493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610880298.9A Active CN106374511B (en) | 2016-10-09 | 2016-10-09 | A kind of three-phrase burden balance control strategy based on customer charge real-time measurement |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106374511B (en) |
| WO (1) | WO2018064929A1 (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849358A (en) * | 2017-02-24 | 2017-06-13 | 威凡智能电气高科技有限公司 | A kind of gridding is coupled intelligent distribution network system |
| CN107404122A (en) * | 2017-07-17 | 2017-11-28 | 国网江西省电力公司电力科学研究院 | A kind of phase modulation method and device of the uneven taiwan area based on hereditary phase modulation algorithm |
| CN107681672A (en) * | 2017-11-15 | 2018-02-09 | 清华大学 | The interactive approach of charging pile interactive terminal and charging pile access power network |
| WO2018064929A1 (en) * | 2016-10-09 | 2018-04-12 | 国网江苏省电力公司扬州供电公司 | Three-phase load balancing control method and system |
| CN107919673A (en) * | 2017-12-22 | 2018-04-17 | 山东邦世电气有限公司 | Phase-change switch type three-phase load self-checking device |
| CN108281974A (en) * | 2018-02-01 | 2018-07-13 | 广东电网有限责任公司韶关供电局 | A kind of three-phase load Automatic Balance Regulation method |
| CN108347061A (en) * | 2018-04-28 | 2018-07-31 | 淄博康润电气有限公司 | Intelligent positioning commutation point device and method in three-phase imbalance improvement |
| CN109066731A (en) * | 2018-07-26 | 2018-12-21 | 广东电网有限责任公司佛山供电局 | Distribution net platform region three-phase load unbalance self-checking device |
| CN109103908A (en) * | 2018-09-27 | 2018-12-28 | 云南电网有限责任公司临沧供电局 | A kind of control system and method for low-voltage network three-phase current unbalance |
| CN109167376A (en) * | 2018-10-25 | 2019-01-08 | 贵州电网有限责任公司 | A kind of load side three-phase imbalance controlling device and its administering method |
| CN109586320A (en) * | 2018-11-20 | 2019-04-05 | 广西电网有限责任公司电力科学研究院 | A kind of power distribution station load intelligent dispatching system and its load scheduling method |
| CN109742778A (en) * | 2019-03-16 | 2019-05-10 | 深圳德微电技术有限公司 | A kind of equal balance system of electrical load for low-voltage network |
| CN109802427A (en) * | 2018-11-23 | 2019-05-24 | 赵中奇 | Photovoltaic power generation grid-connecting control system and control method |
| CN110907740A (en) * | 2019-12-12 | 2020-03-24 | 云南电网有限责任公司临沧供电局 | Automatic commutation equipment detection device and method based on PWM converter |
| CN111463804A (en) * | 2020-05-29 | 2020-07-28 | 国网湖南省电力有限公司 | Method and system for adjusting three-phase unbalance of platform area load |
| CN112418702A (en) * | 2020-12-02 | 2021-02-26 | 广东电网有限责任公司广州供电局 | Method for calculating phase and load component of user meter made of composite components and related device |
| CN112564139A (en) * | 2020-11-27 | 2021-03-26 | 国网江苏省电力有限公司电力科学研究院 | Three-phase alternating-current phase-change switch and phase-change control method |
| CN112946393A (en) * | 2021-02-03 | 2021-06-11 | 杭州林叶电气自动化有限公司 | Electric energy quality monitoring and analyzing system |
| CN113363994A (en) * | 2021-05-10 | 2021-09-07 | 西安理工大学 | Load phase selection switching method for reducing three-phase imbalance |
| CN114142494A (en) * | 2021-11-26 | 2022-03-04 | 浙江省长兴电气工程有限公司 | Switching strategy optimization method of three-phase imbalance management device based on linear programming |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988363A (en) * | 2018-07-11 | 2018-12-11 | 浙江百固电气科技股份有限公司 | A kind of phase-change switch device and the scheduling application system using the above phase-change switch device |
| CN109004660B (en) * | 2018-07-23 | 2023-10-20 | 深圳市粤能电气有限公司 | Intelligent load distributor for intelligent camera changing mechanism |
| CN109274111A (en) * | 2018-11-29 | 2019-01-25 | 上海光维电力科技有限公司 | A kind of three-phase imbalance automatic regulating system |
| 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 |
| CN109742776B (en) * | 2019-01-14 | 2022-04-12 | 国网江西省电力有限公司电力科学研究院 | Three-phase unbalanced transformer area user adjustment method based on sorting algorithm |
| CN109980661B (en) * | 2019-03-07 | 2023-01-17 | 武汉武新电气科技股份有限公司 | Three-phase comprehensive unbalanced load automatic regulating system of bimodulus communication |
| CN109950917A (en) * | 2019-03-27 | 2019-06-28 | 山东正瑞电子有限公司 | The self balancing electric meter data collecting system of three-phase load and selection switch |
| CN110135650B (en) * | 2019-05-21 | 2023-04-28 | 华北水利水电大学 | Method for three-phase load optimization balance configuration of low-voltage distribution system in online planning stage |
| CN110112733B (en) * | 2019-05-21 | 2023-03-14 | 华北水利水电大学 | Line loss calculation method for introducing unbalance degree into low-voltage distribution system |
| CN110224417A (en) * | 2019-06-11 | 2019-09-10 | 河南隆鑫电力设备有限公司 | A kind of low-voltage network three-phase load unbalance automatic adjustment system |
| CN110275072A (en) * | 2019-07-23 | 2019-09-24 | 国网湖南省电力有限公司 | The phase line detector and its detection method in low-voltage three-phase load imbalance platform area |
| CN110690718B (en) * | 2019-08-29 | 2023-01-06 | 国网新疆电力有限公司吐鲁番供电公司 | Three-phase load unbalance treatment control method |
| CN110929751B (en) * | 2019-10-16 | 2022-11-22 | 福建和盛高科技产业有限公司 | Current transformer unbalance warning method based on multi-source data fusion |
| CN110867875B (en) * | 2019-11-30 | 2023-01-17 | 西安科技大学 | Three-phase unbalance degree calculation method suitable for weak power grid |
| CN111130128A (en) * | 2019-12-01 | 2020-05-08 | 张翼洲 | Low-voltage automatic pre-distribution three-phase line balance box based on Internet of things and big data |
| CN111525559B (en) * | 2020-05-08 | 2023-09-22 | 国网辽宁省电力有限公司沈阳供电公司 | Quantification method for influence of three-phase unbalance of low-voltage distribution network on line loss |
| CN112085389A (en) * | 2020-09-10 | 2020-12-15 | 厦门理工学院 | Three-phase load unbalance commutation strategy evaluation method, terminal equipment and storage medium |
| CN112421644B (en) * | 2020-11-12 | 2023-06-16 | 珠海许继芝电网自动化有限公司 | Low-voltage load access method for power distribution Internet of things |
| CN112510726B (en) * | 2020-11-18 | 2023-01-10 | 国网河北省电力有限公司 | Three-phase load unbalance management method for distribution transformer |
| CN112669574B (en) * | 2020-11-28 | 2022-08-09 | 国网辽宁省电力有限公司锦州供电公司 | Power supply enterprise power distribution station operation abnormity alarm method |
| CN112909968A (en) * | 2021-01-28 | 2021-06-04 | 全球能源互联网研究院有限公司 | Low-voltage transformer area three-phase unbalance management line switching method and system |
| CN113162076B (en) * | 2021-04-30 | 2022-06-21 | 国网北京市电力公司 | Three-phase imbalance comprehensive treatment system and method based on intelligent fusion terminal |
| CN113972673B (en) * | 2021-09-29 | 2023-09-22 | 国网山东省电力公司营销服务中心(计量中心) | Intelligent perception inspection system for line loss of transformer area |
| CN114006468B (en) * | 2021-10-19 | 2023-11-24 | 国网山东省电力公司营销服务中心(计量中心) | Power consumption information analysis system for transformer area |
| CN114977224B (en) * | 2022-05-06 | 2024-04-19 | 三峡大学 | Three-phase imbalance time-period treatment method considering distributed power supply access residential area |
| CN115021287A (en) * | 2022-08-08 | 2022-09-06 | 南昌工程学院 | Commutation method, commutation system, storage medium and commutation equipment for three-phase unbalance treatment |
| CN115378001B (en) * | 2022-10-25 | 2023-03-24 | 南昌科晨电力试验研究有限公司 | Low-voltage distribution network artificial phase modulation method and system based on load periodicity |
| CN116316712B (en) * | 2023-04-07 | 2024-02-09 | 国网江苏省电力有限公司南通市通州区供电分公司 | Three-phase load intelligent cooperative regulation and control method based on electricity utilization characteristics |
| CN116979552B (en) * | 2023-06-30 | 2024-05-03 | 国网江苏省电力有限公司泰州供电分公司 | Compensation method for line loss of transformer area based on fixed number capacitance compensation point position selection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090167080A1 (en) * | 2007-12-26 | 2009-07-02 | Carpenter Brian A | Current balancing for multi-phase converters |
| CN103532169A (en) * | 2013-10-25 | 2014-01-22 | 东南大学 | Microgrid intelligent and rapid paralleling splitting device |
| CN203415991U (en) * | 2013-08-27 | 2014-01-29 | 国家电网公司 | Low voltage automatic phase change system |
| JP5645864B2 (en) * | 2012-03-19 | 2014-12-24 | 三菱電機株式会社 | Three-phase unbalance suppression system |
| CN106022973A (en) * | 2016-07-04 | 2016-10-12 | 国网江苏省电力公司扬州供电公司 | Greedy algorithm-based scheduling policy for three-phase load balance of real-time-allocating distribution network |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092229B (en) * | 2014-07-14 | 2016-08-24 | 山东卓尔电气有限公司 | Distributed district's branch road three-phase load current balance type monitoring method and supervising device |
| CN105226684A (en) * | 2015-09-29 | 2016-01-06 | 国电南瑞科技股份有限公司 | A kind of low voltage electric network three-phase imbalance control method based on phase-change switch |
| CN105846453A (en) * | 2016-05-10 | 2016-08-10 | 北京泰豪电力科技有限公司 | Method for treating three-phase load imbalance of low-voltage distribution network |
| CN106374511B (en) * | 2016-10-09 | 2019-05-21 | 国网江苏省电力公司扬州供电公司 | A kind of three-phrase burden balance control strategy based on customer charge real-time measurement |
-
2016
- 2016-10-09 CN CN201610880298.9A patent/CN106374511B/en active Active
-
2017
- 2017-09-18 WO PCT/CN2017/102075 patent/WO2018064929A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090167080A1 (en) * | 2007-12-26 | 2009-07-02 | Carpenter Brian A | Current balancing for multi-phase converters |
| JP5645864B2 (en) * | 2012-03-19 | 2014-12-24 | 三菱電機株式会社 | Three-phase unbalance suppression system |
| CN203415991U (en) * | 2013-08-27 | 2014-01-29 | 国家电网公司 | Low voltage automatic phase change system |
| CN103532169A (en) * | 2013-10-25 | 2014-01-22 | 东南大学 | Microgrid intelligent and rapid paralleling splitting device |
| CN106022973A (en) * | 2016-07-04 | 2016-10-12 | 国网江苏省电力公司扬州供电公司 | Greedy algorithm-based scheduling policy for three-phase load balance of real-time-allocating distribution network |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018064929A1 (en) * | 2016-10-09 | 2018-04-12 | 国网江苏省电力公司扬州供电公司 | Three-phase load balancing control method and system |
| CN106849358A (en) * | 2017-02-24 | 2017-06-13 | 威凡智能电气高科技有限公司 | A kind of gridding is coupled intelligent distribution network system |
| CN107404122A (en) * | 2017-07-17 | 2017-11-28 | 国网江西省电力公司电力科学研究院 | A kind of phase modulation method and device of the uneven taiwan area based on hereditary phase modulation algorithm |
| CN107404122B (en) * | 2017-07-17 | 2020-07-10 | 国网江西省电力公司电力科学研究院 | Genetic phase modulation algorithm-based phase modulation method and device for unbalanced station area |
| CN107681672A (en) * | 2017-11-15 | 2018-02-09 | 清华大学 | The interactive approach of charging pile interactive terminal and charging pile access power network |
| CN107919673A (en) * | 2017-12-22 | 2018-04-17 | 山东邦世电气有限公司 | Phase-change switch type three-phase load self-checking device |
| CN108281974A (en) * | 2018-02-01 | 2018-07-13 | 广东电网有限责任公司韶关供电局 | A kind of three-phase load Automatic Balance Regulation method |
| CN108347061A (en) * | 2018-04-28 | 2018-07-31 | 淄博康润电气有限公司 | Intelligent positioning commutation point device and method in three-phase imbalance improvement |
| CN109066731A (en) * | 2018-07-26 | 2018-12-21 | 广东电网有限责任公司佛山供电局 | Distribution net platform region three-phase load unbalance self-checking device |
| CN109103908A (en) * | 2018-09-27 | 2018-12-28 | 云南电网有限责任公司临沧供电局 | A kind of control system and method for low-voltage network three-phase current unbalance |
| CN109167376A (en) * | 2018-10-25 | 2019-01-08 | 贵州电网有限责任公司 | A kind of load side three-phase imbalance controlling device and its administering method |
| CN109586320A (en) * | 2018-11-20 | 2019-04-05 | 广西电网有限责任公司电力科学研究院 | A kind of power distribution station load intelligent dispatching system and its load scheduling method |
| CN109802427A (en) * | 2018-11-23 | 2019-05-24 | 赵中奇 | Photovoltaic power generation grid-connecting control system and control method |
| CN109742778A (en) * | 2019-03-16 | 2019-05-10 | 深圳德微电技术有限公司 | A kind of equal balance system of electrical load for low-voltage network |
| CN109742778B (en) * | 2019-03-16 | 2023-05-23 | 德微电技术(深圳)有限公司 | Power load balancing system for low-voltage distribution network |
| CN110907740A (en) * | 2019-12-12 | 2020-03-24 | 云南电网有限责任公司临沧供电局 | Automatic commutation equipment detection device and method based on PWM converter |
| CN111463804A (en) * | 2020-05-29 | 2020-07-28 | 国网湖南省电力有限公司 | Method and system for adjusting three-phase unbalance of platform area load |
| CN112564139A (en) * | 2020-11-27 | 2021-03-26 | 国网江苏省电力有限公司电力科学研究院 | Three-phase alternating-current phase-change switch and phase-change control method |
| CN112418702A (en) * | 2020-12-02 | 2021-02-26 | 广东电网有限责任公司广州供电局 | Method for calculating phase and load component of user meter made of composite components and related device |
| CN112418702B (en) * | 2020-12-02 | 2022-12-16 | 广东电网有限责任公司广州供电局 | Method for calculating phase and load component of user meter made of composite components and related device |
| CN112946393A (en) * | 2021-02-03 | 2021-06-11 | 杭州林叶电气自动化有限公司 | Electric energy quality monitoring and analyzing system |
| CN112946393B (en) * | 2021-02-03 | 2022-07-15 | 杭州林叶电气自动化有限公司 | Electric energy quality monitoring and analyzing system |
| CN113363994A (en) * | 2021-05-10 | 2021-09-07 | 西安理工大学 | Load phase selection switching method for reducing three-phase imbalance |
| CN113363994B (en) * | 2021-05-10 | 2023-03-21 | 西安理工大学 | Load phase selection switching method for reducing three-phase imbalance |
| CN114142494A (en) * | 2021-11-26 | 2022-03-04 | 浙江省长兴电气工程有限公司 | Switching strategy optimization method of three-phase imbalance management device based on linear programming |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106374511B (en) | 2019-05-21 |
| WO2018064929A1 (en) | 2018-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106374511A (en) | Three-phase load balance control policy based on user load real-time measurement, and intelligent switching system | |
| CN105449740B (en) | A kind of energy-storage lithium battery active equalization control system and control method | |
| CN106471699B (en) | A kind of the dynamic equalization circuit and its method for dynamically balancing of battery management system | |
| CN107863778A (en) | A kind of commutation energy storage type three-phase load unbalance controlling device and method | |
| CN106300545B (en) | A kind of active equalization control device and control method for liquid metal cell | |
| CN109167375A (en) | Electric automobile charging station three-phase voltage autobalance charging system and charging method | |
| CN105846453A (en) | Method for treating three-phase load imbalance of low-voltage distribution network | |
| CN207082851U (en) | A kind of three-phase imbalance commutation device based on genetic algorithm | |
| CN103259276A (en) | Automatic intelligent power distribution system and power distribution method | |
| CN207117190U (en) | Three-phase load unbalance automatic regulating apparatus | |
| CN109523303A (en) | A kind of low-voltage active power distribution network congestion management method based on deploying node | |
| CN110460072A (en) | Consider the real-time Management strategy of low-voltage platform area three-phase imbalance problem of phase index | |
| CN112994097A (en) | High-proportion distributed photovoltaic cooperative control method based on intelligent distribution transformer terminal system | |
| CN106230004A (en) | A kind of novel seamless phase-change switch system and method for work thereof | |
| CN102904270A (en) | Three-phase current unbalance adjusting system for power distribution network | |
| CN110824275A (en) | Micro-grid AC/DC bus interface converter demonstration test platform | |
| CN104901346A (en) | Battery management system | |
| CN105633985B (en) | Three-phase load unbalance intelligent balance adjusting method | |
| CN101364737A (en) | Method capable of on-line detecting and controlling reactive compensating capacitor and reactive compensating controller thereof | |
| CN110940872A (en) | Method for analyzing structure and parameters of residential building low-voltage power distribution system by collecting data through HPLC | |
| CN205945121U (en) | Battery management system's dynamic equalizer circuit | |
| CN208046249U (en) | Three-phase imbalance commutation device | |
| CN207225102U (en) | Series-connected cell distribution type active nondissipative equalization circuit, battery pack and automobile | |
| CN110445155A (en) | A kind of intelligence phase-change switch, system, method and electronic equipment | |
| CN109921442A (en) | Three-phase self-balance load switching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 225009 No. 56 Nantong West Road, Guangling District, Yangzhou City, Jiangsu Province Co-patentee after: STATE GRID CORPORATION OF CHINA Patentee after: YANGZHOU POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Address before: No. 179 Weiyang Road, Yangzhou, Jiangsu Co-patentee before: State Grid Corporation of China Patentee before: YANGZHOU POWER SUPPLY COMPANY, STATE GRID JIANGSU ELECTRIC POWER Co. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190521 Address after: 225009 No. 56 Nantong West Road, Guangling District, Yangzhou City, Jiangsu Province Co-patentee after: STATE GRID CORPORATION OF CHINA Patentee after: YANGZHOU POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Co-patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Address before: 225009 No. 56 Nantong West Road, Guangling District, Yangzhou City, Jiangsu Province Co-patentee before: State Grid Corporation of China Patentee before: YANGZHOU POWER SUPPLY BRANCH OF STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. |