CN108512221A - A kind of loss computing method containing distributed generation resource and net platform region - Google Patents
A kind of loss computing method containing distributed generation resource and net platform region Download PDFInfo
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- CN108512221A CN108512221A CN201810252677.2A CN201810252677A CN108512221A CN 108512221 A CN108512221 A CN 108512221A CN 201810252677 A CN201810252677 A CN 201810252677A CN 108512221 A CN108512221 A CN 108512221A
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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
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
A kind of loss computing method containing distributed generation resource and net platform region, the method is first collected and the loss calculation data of net platform region, distributed generation resource is handled using equivalent load method, every line segment A is calculated further according to the place phase situation that taiwan area load accesses the form of power grid and accesses power grid, B, the power load of C phase line power transmissions, then the tri-phase unbalance factor and neutral conductor loss correction coefficient of every line segment are calculated, the equivalent impedance to head end is converted in impedance, consider the whole network equivalent impedance of loss correction coefficient, then it is contributed and load output shape related coefficient computed losses shape correlation coefficients by taiwan area distributed generation resource, and calculate the form factor of taiwan area load, finally obtain the electric energy loss of taiwan area power grid.The design realizes the accurate calculating of the taiwan area grid loss situation containing distributed generation resource.
Description
Technical field
The invention belongs to field of distribution network, and in particular to a kind of loss computing method containing distributed generation resource and net platform region.
Background technology
As China's new energy in recent years is grown rapidly, and national " photovoltaic poverty alleviation " policy implementation, in a distributed manner photovoltaic,
Wind-powered electricity generation etc. is that the grid-connected scale of new energy distributed generation resource of representative is continuously increased.Since distributed generation resource accesses the shape of taiwan area power grid
There are diversity for formula, and it is contributed with strong randomness, and taiwan area electric network swim flow direction can be caused to change over time, change tradition
The characteristics of distribution power flow one-way flow.Taiwan area power grid electric energy loss theoretical calculation method in existing professional standard is difficult to adapt to
The calculating requirement of large-scale distributed plant-grid connection.
On the other hand, energy-saving and emission-reduction are the state basic policies adhered to for a long time in China's using energy source process.How effectively to comment
Estimate power grid electric energy loss, is the precondition for carrying out electric system saving energy and decreasing loss.Currently, China's taiwan area power grid has line resistance
Parameter is big, and the feature that overlay area is wide, supply line's total kilometrage is grown, is the chief component of China's grid loss.Platform simultaneously
Area's power grid and user's direct interface, some areas seriously destroy the sound development of power industry there are user's stealing electricity behavior.Such as
What effective calculating taiwan area power grid electric energy loss, can not only instruct power grid enterprises to carry out drop damage work, while can also be to beat
It hits electric power crime and help is provided, be conducive to ensure the economical and efficient of power distribution network, high-quality health operation.
Currently, it includes mainly loss of voltage rate method, substitutional resistance method and taiwan area loss that taiwan area power grid electric energy loss, which calculates,
Rate method.《Power network line losses calculate directive/guide》(DL/T 686-1999) is detailed to describe loss of voltage rate method, substitutional resistance
Method and taiwan area loss ratio method calculate the specific implementation flow of taiwan area power grid electric energy loss, and distributed new is not contained to tradition
And the electric energy loss of net platform region power grid has good directive significance, however be not suitable with the grid-connected platform of distributed new
Area, and can not consider the influence that taiwan area three-phase imbalance is brought.Chinese patent application publication No. is CN107069718A, application is public
Cloth day is that the patent of invention on the 18th of August in 2017 discloses a kind of low-voltage distribution influenced on line loss based on three-phase imbalance
Net loss computing method, this method correct loss calculation only according to circuit head end three-phase current using unbalance factor
As a result, its assumed condition is that mutually tri-phase unbalance factor is identical, and distributed electrical to each part of path of entire taiwan area power grid in the same time
The access in source can be on generating following influence：1) distributed generation resource uses single-phase access way so that certain part of paths in taiwan area
Tri-phase unbalance factor increases, and the tri-phase unbalance factor of these part of paths and head end circuit difference are big；2) distributed generation resource is contributed
Form factor and load between form factor have notable difference, traditional taiwan area loss calculation due in taiwan area only have load
In the presence of, it can be assumed that taiwan area internal loading form factor is consistent.Therefore, which is invalid for actual electric network
, there is an urgent need for study the loss computing method containing distributed generation resource and net platform region.
Invention content
To overcome the problems, such as that existing computational methods can not be suitable for containing distributed generation resource and net platform region, the present invention provides
A kind of loss computing method containing distributed generation resource and net platform region that can accurately calculate taiwan area grid loss situation.
In order to achieve the above object, technical scheme is as follows：
Referring to Fig. 1, a kind of loss computing method containing distributed generation resource and net platform region includes the following steps successively：
Step A, the loss calculation data for containing L distributed generation resource, N number of load and net platform region are collected, wherein for containing
The grid-connected taiwan area of distributed generation resource handles distributed generation resource using equivalent load method；
Step B, the form of power grid is accessed according to taiwan area load and accesses the place phase situation of power grid, using following formula
Calculate the power load A by j-th strip line segment A phase line power transmissionsLaj, pass through the power load of j-th strip line segment B phase line power transmissions
ALbjAnd the power load A by j-th strip line segment C phase line power transmissionsLcj：
In above formula, ALmFor meet condition m load electricity, ALRsFor meet condition s distributed generation resource equivalent load
Electricity, LajFor the load aggregation by the power supply of j-th strip line segment A phase lines, RajFor point by j-th strip line segment A phase line power transmissions
The equivalent load set of cloth power supply, LbjFor the load aggregation by the power supply of j-th strip line segment B phase lines, RbjTo pass through j-th strip
The equivalent load set of the distributed generation resource of line segment B phase line power transmissions, LcjFor the load by the power supply of j-th strip line segment C phase lines
Set, RcjFor the equivalent load set of the distributed generation resource Jing Guo j-th strip line segment C phase line power transmissions；
Step C, the tri-phase unbalance factor and neutral conductor loss correction coefficient of j-th strip circuit are calculated separately according to following formula
K3uj, j-th strip line impedance conversion to head end equivalent impedance Rej, consider loss correction coefficient the whole network equivalent impedance Re：
In above formula, RjFor the impedance of j-th strip circuit, ∑ ALTo include all loads including distributed generation resource equivalent load
The sum of electricity, J is the hop count of circuit in taiwan area power grid；
Step D, it is contributed by distributed generation resource and taiwan area head end load goes out force data computed losses shape correlation coefficients KR；
Step E, according to the form factor k of the Current calculation taiwan area load of 24 hours integral point moment taiwan area load：
In above formula, ILiFor i hours electric currents of taiwan area load reset；
Step F, the electric energy loss Δ A of taiwan area power grid is calculated according to the following formula：
In above formula, D is the desk calendar number of days of this month, Δ AdbhElectric energy, m is lost for the moon of h class gauge tables in taiwan areahFor h
Class gauge table number, ∑ Δ ACFor the loss electric energy of reactive-load compensation equipment in taiwan area power grid, AP、AQRespectively taiwan area head end 24 is small
When total active energy, total capacity of idle power, U is head end voltage of courts, the T=24 when being calculated by the way of representing day.
Loss shape correlation coefficients K is calculated using following formula in the step DR：
KR=f (x)
ILi=Ii+IRi
In above formula, x is that taiwan area distributed generation resource is contributed and load output shape related coefficient, IiIt is small for taiwan area head end i-th
When electric current, IRiFor i-th hour input current of distributed generation resource, PRiFor always having for i-th hour all distributed generation resource of taiwan area
Work(power.
In step A, it is described using equivalent load method processing distributed generation resource refer to by the active electricity of first of distributed generation resource
Measure ARlIt is converted into negative equivalent load electricity ALRl：
ALRl=-ARl
In above formula, l=1,2...L, L are the number of taiwan area distributed generation resource.
Compared with prior art, beneficial effects of the present invention are：
A kind of loss computing method containing distributed generation resource and net platform region of the present invention first uses the processing distribution of equivalent load method
Formula power supply accesses the form of power grid further according to taiwan area load and accesses the place phase situation of power grid, using sectionalized line injustice
On the one hand influence of the weighing apparatus degree correction process three-phase imbalance to loss calculation can be calculated effectively containing distributed generation resource and net platform region
Loss, be suitable for containing distributed generation resource and net platform region loss calculation, on the other hand, with taiwan area power grid split-phase Load flow calculation
Method compare, this method not only needs the data acquired relatively fewer, convenience of calculation, easy to implement, and can count and platform
The influence of area's power grid three-phase imbalance and new energy, the accurate loss electric energy calculated containing distributed new and net platform region, is protected
The accuracy for having demonstrate,proved the calculating of taiwan area grid loss, basis is provided for power grid energy-saving and emission-reduction.Therefore, the present invention is realized containing distribution
The accurate calculating of the taiwan area grid loss situation of power supply.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Fig. 2 is in the embodiment of the present invention 1 containing the grid-connected taiwan area power grid electrical schematics of distributed generation resource.
Specific implementation mode
The present invention will be further described in detail with reference to the specific embodiments.
Referring to Fig. 1, a kind of loss computing method containing distributed generation resource and net platform region includes the following steps successively：
Step A, the loss calculation data for containing L distributed generation resource, N number of load and net platform region are collected, wherein for containing
The grid-connected taiwan area of distributed generation resource handles distributed generation resource using equivalent load method；
Step B, the form of power grid is accessed according to taiwan area load and accesses the place phase situation of power grid, using following formula
Calculate the power load A by j-th strip line segment A phase line power transmissionsLaj, pass through the power load of j-th strip line segment B phase line power transmissions
ALbjAnd the power load A by j-th strip line segment C phase line power transmissionsLcj：
In above formula, ALmFor meet condition m load electricity, ALRsFor meet condition s distributed generation resource equivalent load
Electricity, LajFor the load aggregation by the power supply of j-th strip line segment A phase lines, RajFor point by j-th strip line segment A phase line power transmissions
The equivalent load set of cloth power supply, LbjFor the load aggregation by the power supply of j-th strip line segment B phase lines, RbjTo pass through j-th strip
The equivalent load set of the distributed generation resource of line segment B phase line power transmissions, LcjFor the load by the power supply of j-th strip line segment C phase lines
Set, RcjFor the equivalent load set of the distributed generation resource Jing Guo j-th strip line segment C phase line power transmissions；
Step C, the tri-phase unbalance factor and neutral conductor loss correction coefficient of j-th strip circuit are calculated separately according to following formula
K3uj, j-th strip line impedance conversion to head end equivalent impedance Rej, consider loss correction coefficient the whole network equivalent impedance Re：
In above formula, RjFor the impedance of j-th strip circuit, ∑ ALTo include all loads including distributed generation resource equivalent load
The sum of electricity, J is the hop count of circuit in taiwan area power grid；
Step D, it is contributed by distributed generation resource and taiwan area head end load goes out force data computed losses shape correlation coefficients KR；
Step E, according to the form factor k of the Current calculation taiwan area load of 24 hours integral point moment taiwan area load：
In above formula, ILiFor i hours electric currents of taiwan area load reset；
Step F, the electric energy loss Δ A of taiwan area power grid is calculated according to the following formula：
In above formula, D is the desk calendar number of days of this month, Δ AdbhElectric energy, m is lost for the moon of h class gauge tables in taiwan areahFor h
Class gauge table number, ∑ Δ ACFor the loss electric energy of reactive-load compensation equipment in taiwan area power grid, AP、AQRespectively taiwan area head end 24 is small
When total active energy, total capacity of idle power, U is head end voltage of courts, the T=24 when being calculated by the way of representing day.
Loss shape correlation coefficients K is calculated using following formula in the step DR：
KR=f (x)
ILi=Ii+IRi
In above formula, x is that taiwan area distributed generation resource is contributed and load output shape related coefficient, IiIt is small for taiwan area head end i-th
When electric current, IRiFor i-th hour input current of distributed generation resource, PRiFor always having for i-th hour all distributed generation resource of taiwan area
Work(power.
In step A, it is described using equivalent load method processing distributed generation resource refer to by the active electricity of first of distributed generation resource
Measure ARlIt is converted into negative equivalent load electricity ALRl：
ALRl=-ARl
In above formula, l=1,2...L, L are the number of taiwan area distributed generation resource.
The principle of the present invention is described as follows：
Taiwan area power grid：Refer generally to the 0.38kV power grids with independent grid structure below 10kV distribution transformers.
Three-phase imbalance：Power grid is powered by A phase, B phase, C phase, if A phase, B phase, C phase three-phase load size of current is the same,
It is considered as its three-phase imbalance, is characterized using tri-phase unbalance factor.General tri-phase unbalance factor is A phase, B phase, C phase electric current
Maximum value and the difference of its average value account for the percentage of its average value.
For the load by phase three-wire three or three-phase four-wire power supply, A phase, B phase, C phase load is total load
1/3, for the load of single-phase access A phase lines, A phase loads are its total load, for the negative of single-phase access B phase lines
Lotus, B phase loads are its total load, and for the load of single-phase access C phase lines, C phase loads are its total load, for single-phase
The load of B phases or C phase lines is accessed, A phase loads are zero, for the load of single-phase access A phases or C phase lines, B phase loads
It is zero, for the load of single-phase access A phases or B phase lines, C phase loads are zero.
Embodiment 1：
A kind of loss computing method containing distributed generation resource and net platform region, using taiwan area power grid shown in Fig. 2 as object：
Step 1 collects above-mentioned and net platform region loss calculation data, wherein the taiwan area power grid has 12 nodes, two
Distributed solar energy power supply is respectively connected to node 3 and node 7, and each branch and load power generation data are as shown in table 1 in system, point
Cloth power supply is powered 260kWh in 24 hours, taiwan area load 24 hours total electricity consumption 935kWh, head end voltage of courts 380V, taiwan area
24 hours electric currents of head end are as shown in table 2, and 24 hours total active energies of taiwan area head end are 740kWh, total capacity of idle power is
188kvarh, the loss electric energy of reactive-load compensation equipment is 0kWh in taiwan area power grid.Gauge table only has a kind in taiwan area, quantity 4,
Every gauge table monthly loss of electricity 1.5kWh, calculates moon desk calendar number of days 30 days.24 hours integral point moment all distributions of taiwan area
The total active power of power supply is as shown in table 3, and taiwan area distributed generation resource is contributed and load output shape related coefficient x is repaiied with loss shape
Positive coefficient KRBetween functional relation KR=f (x)=e0.8x-0.8(1.5-0.5x)3；
1 taiwan area electrical network parameter table of table
Table 2 and net platform region head end electric current table (unit：A)
| Moment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Electric current | 83.6 | 84.7 | 84.4 | 82.6 | 81.7 | 83.9 | 76.5 | 73.2 |
| Moment | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Electric current | 59.5 | 47.9 | 41.9 | 25.9 | 27.2 | 39.4 | 51.8 | 73.4 |
| Moment | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| Electric current | 84.8 | 108.5 | 105.5 | 127.8 | 139.6 | 109.8 | 93.9 | 84.6 |
3 integral point moment of table and net platform region distributed generation resource active power (unit：kW)
Step 2, for containing the grid-connected taiwan area of distributed generation resource, by the active energy A of first of distributed generation resourceRlConversion
As negative equivalent load electricity ALRl：
ALRl=-ARl
In above formula, l=1,2...L, L are the number of taiwan area distributed generation resource；
Node 3 and node 7 have been respectively connected to distributed solar energy power supply, new-energy grid-connected active energy are converted into negative
Equivalent load electricity.The equivalent load electricity of node 3 is ALR3The equivalent load electricity of=- 200kWh, node 7 are ALR7=-
The equivalent load electricity of 60kWh, other nodes are 0；
Step 3 accesses the form of power grid according to taiwan area load and accesses the place phase situation of power grid, using following formula
Calculate the power load A by j-th strip line segment A phase line power transmissionsLaj, pass through the power load of j-th strip line segment B phase line power transmissions
ALbjAnd the power load A by j-th strip line segment C phase line power transmissionsLcj：
In above formula, ALmFor meet condition m load electricity, ALRsFor meet condition s distributed generation resource equivalent load
Electricity, LajFor the load aggregation by the power supply of j-th strip line segment A phase lines, RajFor point by j-th strip line segment A phase line power transmissions
The equivalent load set of cloth power supply, LbjFor the load aggregation by the power supply of j-th strip line segment B phase lines, RbjTo pass through j-th strip
The equivalent load set of the distributed generation resource of line segment B phase line power transmissions, LcjFor the load by the power supply of j-th strip line segment C phase lines
Set, RcjFor the equivalent load set of the distributed generation resource Jing Guo j-th strip line segment C phase line power transmissions；
Result of calculation is as shown in table 4：
A, B, C phase load situation table (unit of the table 4 Jing Guo each part of path power transmission：kWh)
Step 4, the tri-phase unbalance factor and neutral conductor loss correction COEFFICIENT K that j-th strip circuit is calculated according to following formula3uj：
It the results are shown in Table 5：
The loss correction coefficient table of 5 each part of path of table
| Node i | Node j | Loss correction coefficient | Node i | Node j | Loss correction coefficient |
| 0 | 1 | 1.027 | 1 | 12 | 6.000 |
| 1 | 2 | 1.150 | 2 | 13 | 6.000 |
| 2 | 3 | 1.058 | 3 | 14 | 1.000 |
| 3 | 4 | 1.029 | 4 | 15 | 6.000 |
| 4 | 5 | 1.146 | 5 | 16 | 6.000 |
| 5 | 6 | 1.107 | 6 | 17 | 6.000 |
| 6 | 7 | 1.008 | 7 | 18 | 6.000 |
| 7 | 8 | 1.048 | 8 | 19 | 6.000 |
| 8 | 9 | 1.190 | 9 | 20 | 1.000 |
| 9 | 10 | 2.790 | 10 | 21 | 6.000 |
| 10 | 11 | 6.000 | 11 | 22 | 6.000 |
Step 5 converts the equivalent impedance R to head end according to following formula calculating j-th strip line impedanceej：
In above formula, RjFor the impedance of j-th strip circuit, ∑ ALTo include all loads including distributed generation resource equivalent load
The sum of electricity；
As a result referring to table 6：
The equivalent impedance table to head end is converted in 6 each part of path impedance of table
| Node i | Node j | Equivalent impedance (ohm/1000) | Node i | Node j | Equivalent impedance (ohm/1000) |
| 0 | 1 | 64.00000 | 1 | 12 | 0.263374 |
| 1 | 2 | 41.75364 | 2 | 13 | 0.213333 |
| 2 | 3 | 20.77075 | 3 | 14 | 0.350464 |
| 3 | 4 | 29.67309 | 4 | 15 | 0.094815 |
| 4 | 5 | 41.27407 | 5 | 16 | 0.263374 |
| 5 | 6 | 22.7786 | 6 | 17 | 0.16856 |
| 6 | 7 | 20.15671 | 7 | 18 | 0.094815 |
| 7 | 8 | 12.89942 | 8 | 19 | 0.094815 |
| 8 | 9 | 16.55045 | 9 | 20 | 0.790123 |
| 9 | 10 | 2.317037 | 10 | 21 | 0.053333 |
| 10 | 11 | 3.423868 | 11 | 22 | 0.263374 |
Step 6 calculates the whole network equivalent impedance R for considering loss correction coefficient according to following formulaeFor 0.27999 Ω：
In above formula, J is the hop count of circuit in taiwan area power grid；
Step 7 goes out force data calculating taiwan area distributed generation resource output by distributed generation resource output and taiwan area head end load
It is 0.482 with load output shape related coefficient x, loss shape correlation coefficients KRIt is 1.319：
KR=f (x)
ILi=Ii+IRi
In above formula, IiFor i-th hour electric current of taiwan area head end, IRiFor i-th hour input current of distributed generation resource, PRiFor
Total active power of i-th hour all distributed generation resource of taiwan area；
Step 8 according to the form factor k of the Current calculation taiwan area load of 24 hours integral point moment taiwan area load is 1.014：
In above formula, ILiFor i hours electric currents of taiwan area load reset；
Step 9, the electric energy loss Δ A for calculating taiwan area power grid according to the following formula are 63.72kWh, and wherein gauge table is lost
0.2kWh：
In above formula, D is the desk calendar number of days of this month, Δ AdbhElectric energy, m is lost for the moon of h class gauge tables in taiwan areahFor h
Class gauge table number, ∑ Δ ACFor the loss electric energy of reactive-load compensation equipment in taiwan area power grid, AP、AQRespectively taiwan area head end 24 is small
When total active energy, total capacity of idle power, U is head end voltage of courts, the T=24 when being calculated by the way of representing day.
From the point of view of the line loss of statistics, 24 hours total active energies of taiwan area head end are 740kWh, distributed generation resource 24 hours
Interior power supply 260kWh, 24 hours total electricity consumption 935kWh of taiwan area load, total power supply volume subtract the total electricity consumption of load and obtain platform
The statistics loss of electricity in area is 65kWh, and the theory wire loss value being calculated with the present embodiment is very close, and the two error is smaller.
It can be seen that computational methods of the present invention have good calculating accuracy.
Claims (3)
1. a kind of loss computing method containing distributed generation resource and net platform region, it is characterised in that：
The method includes the following steps successively：
Step A, the loss calculation data for containing L distributed generation resource, N number of load and net platform region are collected, wherein be distributed for containing
The taiwan area of formula power grid handles distributed generation resource using equivalent load method；
Step B, the form of power grid is accessed according to taiwan area load and accesses the place phase situation of power grid, calculated using following formula
Pass through the power load A of j-th strip line segment A phase line power transmissionsLaj, pass through the power load A of j-th strip line segment B phase line power transmissionsLbjWith
And the power load A by j-th strip line segment C phase line power transmissionsLcj：
In above formula, ALmFor meet condition m load electricity, ALRsIt is charged for the equivalent negative that meets the distributed generation resource of condition s
Amount, LajFor the load aggregation by the power supply of j-th strip line segment A phase lines, RajFor the distribution Jing Guo j-th strip line segment A phase line power transmissions
The equivalent load set of formula power supply, LbjFor the load aggregation by the power supply of j-th strip line segment B phase lines, RbjTo pass through j-th strip line
The equivalent load set of the distributed generation resource of section B phase line power transmissions, LcjFor the load collection by the power supply of j-th strip line segment C phase lines
It closes, RcjFor the equivalent load set of the distributed generation resource Jing Guo j-th strip line segment C phase line power transmissions；
Step C, the tri-phase unbalance factor and neutral conductor loss correction COEFFICIENT K of j-th strip circuit are calculated separately according to following formula3uj、
J-th strip line impedance converts the equivalent impedance R to head endej, consider loss correction coefficient the whole network equivalent impedance Re：
In above formula, RjFor the impedance of j-th strip circuit, ∑ ALTo include the electricity of all loads including distributed generation resource equivalent load
The sum of amount, J are the hop count of circuit in taiwan area power grid；
Step D, it is contributed by distributed generation resource and taiwan area head end load goes out force data computed losses shape correlation coefficients KR；
Step E, according to the form factor k of the Current calculation taiwan area load of 24 hours integral point moment taiwan area load：
In above formula, ILiFor i hours electric currents of taiwan area load reset；
Step F, the electric energy loss Δ A of taiwan area power grid is calculated according to the following formula：
In above formula, D is the desk calendar number of days of this month, Δ AdbhElectric energy, m is lost for the moon of h class gauge tables in taiwan areahFor h class meters
Scale number, ∑ Δ ACFor the loss electric energy of reactive-load compensation equipment in taiwan area power grid, AP、AQRespectively taiwan area head end 24 hours
Total active energy, total capacity of idle power, U is head end voltage of courts, the T=24 when being calculated by the way of representing day.
2. a kind of loss computing method containing distributed generation resource and net platform region according to claim 1, it is characterised in that：
Loss shape correlation coefficients K is calculated using following formula in the step DR：
KR=f (x)
ILi=Ii+IRi
In above formula, x is that taiwan area distributed generation resource is contributed and load output shape related coefficient, IiFor i-th hour electricity of taiwan area head end
Stream, IRiFor i-th hour input current of distributed generation resource, PRiFor total wattful power of i-th hour all distributed generation resource of taiwan area
Rate.
3. a kind of loss computing method containing distributed generation resource and net platform region according to claim 1 or 2, feature exist
In：
In step A, it is described using equivalent load method processing distributed generation resource refer to by the active energy A of first of distributed generation resourceRl
It is converted into negative equivalent load electricity ALRl：
ALRl=-ARl
In above formula, l=1,2...L, L are the number of taiwan area distributed generation resource.
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| CN111817351A (en) * | 2020-08-06 | 2020-10-23 | 中国人民解放军国防科技大学 | Method and system for reducing loss during grid connection of distributed energy |
| CN112039076A (en) * | 2020-05-21 | 2020-12-04 | 国网电力科学研究院有限公司 | Power distribution network load flow dynamic equivalence method and system integrating distributed power sources and loads |
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