CN106529763A - Power distribution system operation analysis method and device - Google Patents
Power distribution system operation analysis method and device Download PDFInfo
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Abstract
The invention provides a power distribution system operation analysis method and a power distribution system operation analysis device. The power distribution system operation analysis method comprises the steps of: dividing a target feeder line in a power distribution system into a plurality of units to be measured; acquiring a failure rate for each of the units to be measured; generating a power outage loss function for each type of users on a target feeder line according to electricity utilization attributes of the users on the target feeder line; calculating a failure parameter for each of the units to be measured based on the power outage loss function and the failure rate; and adjusting the units to be measured according to the failure parameters. By adopting the power distribution system operation analysis method and the power distribution system operation analysis device, and considering the failure rates of the units to be measured and economic loss caused by the same, the precision of the power distribution system operation analysis is improved, and a more accurate and clear failure risk reference can be provided for the power distribution and dispatching department quickly.
Description
Technical field
The present invention relates to distribution analysis field, and in particular to a kind of distribution system operating analysis method and apparatus.
Background technology
As the annoying development of people society, resident living are more and more closer with the relation of electricity system, in recent years, various places are sent out
Raw significant blackouts accident and its adverse consequencess brought, illustrate to carry out electricity system system operating analysis it is important
Property.The safe and reliable operation of electricity system, depends on efficient, accurate operating analysis method, and existing for electricity system
Operating analysis method mainly have following two：
1st, definitiveness assessment：Definitiveness is assessed mainly for the order of severity occurred in accident, does not account for different accidents
The probability occurred with service condition.Generally using qualitative evaluation method really have Sensitivity Analysis Method, numerical value emulation method,
Numerical method etc..
2nd, probabilistic assessment：Probabilistic approach can be divided into two big class of analytic method and simulation method.Probabilistic assessment can be weighed
The system failure occur probability and severity of injuries probability size, but cannot combined chance and consequence, this analysis
Appraisal procedure is difficult adaptive system growth requirement.
The shortcoming of prior art：Above-mentioned existing electricity system methods of risk assessment mainly for transmission system, special pin
The operating analysis method carried out to distribution system is also little, and compared with transmission system, the structure of distribution system is more complicated, matches somebody with somebody
Electric equipment quantity is huger, distribution system closed loop design, the unique way of open loop operation, if the fortune that will be directed to transmission system
When row analysis method is applied to distribution system, analysis result can be caused not accurate enough.
Therefore, operating analysis method of the prior art how is overcome quickly and accurately to get in distribution system
The defect of weak link, becomes a technical problem urgently to be resolved hurrily.
The content of the invention
Therefore, the technical problem to be solved in the present invention is that operating analysis method of the prior art cannot quickly, accurately
Get weak link in distribution system.
In view of this, the one side of the embodiment of the present invention provides a kind of distribution system operating analysis method, including：To match somebody with somebody
Target feeder line in electric system is divided into multiple to-be-measured cells；Obtain the fault rate of each to-be-measured cell；According to described
User power utilization attribute on target feeder line generates the loss of outage function of each type of user on the target feeder line；According to institute
State the fault parameter that loss of outage function and the fault rate calculate each to-be-measured cell respectively；Joined according to the failure
The number adjustment to-be-measured cell.
Preferentially, the user power utilization attribute according on the target feeder line generates each on the target feeder line
The loss of outage function of user includes：All users are classified according to the user power utilization attribute, the user power utilization attribute bag
Include：One or more in user power utilization characteristic, user's power failure characteristic and user's productive life characteristic；Obtain each type to use
The loss of outage data at family；Intended with the relation of customer outage hours respectively according to the loss of outage data of each type of user
Conjunction obtains the loss of outage function of each class users.
Preferentially, it is described that each described to-be-measured cell is calculated respectively according to the loss of outage function and the fault rate
Fault parameter include：Obtain the power off time of the target feeder line caused during each described to-be-measured cell failure and described
Total power load in target feeder line；Power off time, the loss of outage function and total use according to the target feeder line
Electric load is calculated the breakdown loss of each to-be-measured cell；Respectively by the breakdown loss of each to-be-measured cell
It is multiplied with the corresponding fault rate and obtains the fault parameter of each to-be-measured cell.
Preferentially, the breakdown loss is economic loss.
Preferentially, the to-be-measured cell includes：There are the part and the part without switch of switch.
Another aspect according to embodiments of the present invention provides a kind of distribution system operating analysis device, including：Divide mould
Block, for being divided into multiple to-be-measured cells by the target feeder line in distribution system；Acquisition module, treat described in each for obtaining
Survey the fault rate of unit；Generation module, for generating the target feeder line according to the user power utilization attribute on the target feeder line
On each type of user loss of outage function；Computing module, for according to the loss of outage function and the fault rate
The fault parameter of each to-be-measured cell is calculated respectively；Adjusting module, for treating according to fault parameter adjustment
Survey unit.
Preferentially, the generation module includes：Taxon, for dividing all users according to the user power utilization attribute
Class, the user power utilization attribute include：One in user power utilization characteristic, user's power failure characteristic and user's productive life characteristic
Or it is multiple；First acquisition unit, for obtaining the loss of outage data of each type of user；Fitting unit, for according to each
The loss of outage data of type of user are fitted with the relation of customer outage hours respectively and obtain the described of each class users
Loss of outage function.
Preferentially, the computing module includes：Second acquisition unit, for obtaining during each described to-be-measured cell failure
Total power load in the power off time and the target feeder line of the target feeder line for causing；First computing unit, for root
Obtain treating described in each according to the power off time of the target feeder line, the loss of outage function and total Calculation of electric charge
Survey the breakdown loss of unit；Second computing unit, for respectively by the breakdown loss of each to-be-measured cell with it is corresponding
The fault rate is multiplied and obtains the fault parameter of each to-be-measured cell.
Preferentially, the breakdown loss is economic loss.
Preferentially, the to-be-measured cell includes：There are the part and the part without switch of switch.
Technical scheme has advantages below：
Target feeder line in distribution system is marked off multiple by distribution system operating analysis method that the present invention is provided first
To-be-measured cell, obtains the fault rate of each to-be-measured cell, then the difference according to user power utilization attribute, by the target feeder line
User's classification, and obtain function (the i.e. loss of outage of the power failure economic loss of each type user and power off time relation
Function), finally the economic loss that the fault rate of different to-be-measured cells is produced with the to-be-measured cell failure is multiplied, it is to be measured as this
The fault parameter of unit, in actual applications, it is only necessary to which the fault parameter of each to-be-measured cell is sued for peace, you can obtain whole piece target
The fault parameter value of feeder line or whole distribution system, and then the to-be-measured cell in distribution system is adjusted according to fault parameter
It is whole, to ensure the safe operation of distribution system, compared with prior art, the method simultaneously consider the fault rate of to-be-measured cell and
Its economic loss brought, improves the accuracy of distribution system operating analysis, quickly can provide more for distribution traffic department
Plus accurately, clearly failure risk is referred to.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Flow charts of the Fig. 1 for the distribution system operating analysis method of the embodiment of the present invention 1；
Schematic diagrams of the Fig. 2 for the distribution system of the embodiment of the present invention 1；
Block diagrams of the Fig. 3 for the distribution system operating analysis device of the embodiment of the present invention 2.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance.
As long as additionally, the non-structure each other of technical characteristic involved in invention described below different embodiments
Can just be combined with each other into conflict.
Embodiment 1
The present embodiment provides a kind of distribution system operating analysis method, is particularly suited for the risk point of distribution system operation
Analysis, describes the program using a feeder line F1 in distribution system as shown in Figure 2 in detail below as a example by target feeder line, such as schemes
Shown in 1, the method comprises the steps：
S1：Target feeder line (i.e. feeder line F1) in distribution system is divided into into multiple to-be-measured cells, to-be-measured cell include but
It is not limited to：There are the part and the part without switch of switch.Specifically, first can be by feeder line F1 in distribution system with all kinds of switches
To-be-measured cell division is carried out for border, and several regions to be measured and all kinds of switches to marking off accordingly are numbered, such as
Shown in Fig. 2, with block switch as border, it is 4 region (as in Fig. 2, dotted line marks part) to be measured by feeder line F1 point, wherein, point
Duan Kaiguan belongs to the part for having switch, and 4 regions to be measured are the part without switch, and the two can treating as the present embodiment
Unit is surveyed, such 4 regions to be measured without switch can regard 4 equivalent load nodes as, then feeder line F1 is translated into and only born
The simplified network that lotus node is constituted with all kinds of switches.
S2：Obtain the fault rate of each to-be-measured cell.Specifically may include steps of：
Step 1：Then each circuit on feeder line F1, transformator and all kinds of switches can be searched from historical data base
The number of stoppages, and then obtain each element failure rate, as shown in table 1：
1 element failure rate of table
Step 2：The fault rate in 4 regions to be measured is calculated respectively according to each element failure rate obtained in step 1, i.e.,
The fault rate in each region to be measured may finally be obtained, if containing m bar circuits (not including this in the region i to be measured of feeder line F1
Use electric device on circuit) and n load branch circuit (m and n are positive integer), it is assumed that have between each element in region i to be measured
Concatenating logic relation, then specifically can calculate fault rate λ of region i to be measured as followsi：
Wherein, λij、λiklAnd λiktFault rate, the kth bar load branch circuit of j-th strip circuit in region i to be measured is represented respectively
The fault rate of transformator in the fault rate of middle circuit and kth bar load branch circuit, unit for times/year；The then failure of to-be-measured cell
Rate can include：Fault rate λ of region i to be measurediWith block switch SiFault rate λ of ((i=1,2......g))si。
S3：The loss of outage of each type of user on target feeder line is generated according to the user power utilization attribute on target feeder line
Function.Used as a kind of preferred version, step S3 includes：
Step 1：All users are classified according to the user power utilization attribute on target feeder line F1, user power utilization attribute include but
It is not limited to：One or more in user power utilization characteristic, user's power failure characteristic and user's productive life characteristic.
Step 2：The loss of outage data of each type of user are obtained, such as can be according to the use of different type power consumer
Electrical characteristics, power failure characteristic and production economy activity characteristic, investigate to the user on feeder line F1, according to the institute that investigation is obtained
(such as loss of outage can be the reality that a period of time causes that has a power failure suddenly or have a power failure the history loss of outage data of user
Economic loss), user is classified, such as the user on feeder line F1 can be divided into 7 classes：Large user, industrial user, commercially use
Family, agricultural user, resident, government bodies, office building, and data compilation is carried out, as shown in table 2：
2 different user unit loss of outage (unit/kW) of table
Step 3：It is fitted with the relation of customer outage hours respectively according to the loss of outage data of each type of user and is obtained
The loss of outage function of each class users.Such as can be according to the data shown in the table 2 in step 2, using method of least square
The loss of outage function of each type of user is fitted, specifically, method of least square can be adopted, MATLAB computing works are borrowed
Tool, the power failure economic loss of the user of each type is carried out linearly, multinomial is secondary, three times, four times, five function curves plans
Close, finally give power failure economic loss optimal approximation function and be loss of outage function, if Cj(t) (j=1,2,3,4,5,6,7)
Respectively be large user, industrial user, commercial user, agricultural user, resident, government bodies, office building have a power failure when
Between loss of outage function in t, the loss of outage function of all types of user is as follows：
C1=-0.0441t4+0.7214t3-3.5173t2+9.0905t+4.8745
C2=0.3063t4-3.4303t3+7.9563t2+33.0203t+7.5725
C3=0.1458t4-1.3066t3+2.5766t2+40.1085t+1.2358
C4=-0.0698t4+0.9328t3-3.3671t2+5.5406t+0.2086
C5=0.0028t4-0.0830t3+1.5976t2+0.9031t-0.0105
C6=0.1421t4-1.5990t3+5.2969t2+3.4591t+0.1609
C7=0.0378t5-0.3775t4+3.9303t2+79.1649t+22.5695
S4：The fault parameter of each to-be-measured cell is calculated respectively according to loss of outage function and fault rate.As one kind
Preferred version, step S3 can include：
Step 1：Obtain in the power off time and target feeder line of the target feeder line caused during each to-be-measured cell failure
Total power load.The Fault Isolation time can such as be set as t1, it is t that failure turned for the time2, fault correction time is ri, wherein,
Fault correction time is riCan calculate according to equation below：
In above formula, tij、tiklAnd tiktFault correction time, the kth bar of j-th strip circuit in region i to be measured is represented respectively
In load branch circuit in the fault correction time of circuit and kth bar load branch circuit transformator fault correction time, unit can be with
For h/ time.If i failures in region to be measured, feeder line F1 leading-out terminal breaker actuations, full feeder line have a power failure, and then look for area to be measured
The disconnecting switch at domain i two ends (can be block switch S hereini) region i to be measured is isolated.Then region i upstreams feeder line to be measured is born
Lotus point is by bus normal power supply, so the power off time t of upstream feeder load point is equal to Fault Isolation time t1, due to feeder line
A calculating in F1 whether comprising the power off time t for turning to influence whether different to-be-measured cells for switch, therefore can set and turn for switch
Variable is α, and α=1 indicates and turn for switch that α=0 represents and do not turn for switch.When there is a turn confession to switch, downstream feeder load point
By turning for recovering normal power supply, if failure turns for time t2, the power off time t of downstream feeder load point is equal to, α (t1+t2)+
(1-α)ri, and the power off time of region i to be measured is equal to fault correction time ri；If block switch SiBreak down, be segmented
Switch S(i-1)And S(i+1)Action, by region to be measurediIsolate with i+1.It is isolated the power failure of the upstream feeder load point in region to be measured
Time t is Fault Isolation time t1, the power off time t for being isolated region to be measured is block switch SiFault correction time rsi,
The power off time t for being isolated the downstream feeder load point in region to be measured is α (t1+t2)+(1-α)rsi.For total use of feeder line F1
Electric load, can get from the information bank of distribution system, can specifically use Pij、Pij′、Pij" (j=1,2,3,4,5,6,7)
Total power load of feeder load point in region i upstreams to be measured, downstream feeder load point and region i to be measured is represented respectively.
Step 2：Power off time t, loss of outage function and total Calculation of electric charge according to target feeder line obtains each
The breakdown loss of to-be-measured cell.Breakdown loss herein can be the economic loss that the failure is brought, specifically, on feeder line F1 not
Breakdown loss analysis process with to-be-measured cell is as follows：
Situation 1：If i failures in region to be measured, then i failures in region to be measured cause the power failure economy of upstream feeder load point
Lose and be：
I failures in region to be measured cause the power failure economic loss of feeder load point to be downstream：
I failures in region to be measured to the power failure economic loss that its own produces are：
Then the breakdown loss of region i to be measured is：
SArea=Si1+Si2+Si3
Situation 2：If block switch SiBreak down, cause power failure economic loss, the downstream of upstream feeder load point
The power failure economic loss of feeder load point and its own power failure economic loss for producing are respectively Ssi1、Ssi2And Ssi3It is (concrete to count
Calculate formula in the same manner with situation 1), then block switch SiBreakdown loss be：
SSwitch=Ssi1+Ssi2+Ssi3。
Step 3：Respectively the breakdown loss of each to-be-measured cell and corresponding fault rate are multiplied, and it is to be measured to obtain each
The fault parameter of unit.Specifically, the fault parameter value of region i to be measured is：
Ri=λi×SArea
Block switch SiFault parameter value be：
Rsi=λsi×SSwitch
It is possible to further the fault parameter value of whole piece feeder line F1 is：
Wherein, k, g represent individual numerical value and the number of block switch in the region to be measured of whole feeder line F1, failure ginseng respectively
Number is bigger, illustrates that the failure risk that the system is present is bigger.As shown in table 3, be feeder line F1 each to-be-measured cell failure ginseng
Numerical value：
The fault parameter value in each regions to be measured of 3 feeder line F1 of table
As shown in table 4, be block switch in feeder line F1 fault parameter value：
The each block switch fault parameter values of 4 feeder line F1 of table
S5：To-be-measured cell is adjusted according to fault parameter.Specifically, can according in the feeder line F1 obtained in step S4 each
The fault parameter value of to-be-measured cell and block switch, is adjusted to the element composition of each to-be-measured cell of feeder line F1, than
Such as：As known from Table 3, although the fault rate in region to be measured 3 is bigger than region to be measured 2, but its fault parameter value is than region to be measured 2
It is little, thus can not be single when distribution system operating analysis is done consideration failure occur probability size, or simple meter and
Fault severity level, but should combine both and consider, and clearly can also find out from table 3, feeder line peace
Dress turns to reduce the fault parameter value in region to be measured for switch well, then can be equipped with for related feeder line and turn for switch, from
And the failure risk of reduction distribution system, improve its safety in operation.On the other hand, as can be seen from Table 4, in feeder line F1 not
The breakdown loss of same block switch differs greatly, but fault parameter value is relatively small, this is because block switch fault rate phase
To less reason, so breakdown loss situation and fault rate will be taken into account in distribution system operating analysis, it is to avoid cause electric power
The waste of risk investment.
Above-mentioned distribution system operating analysis method, has tried to achieve the fault parameter value of feeder line F1, can obtain power distribution system in the same manner
The fault parameter value of each feeder line in system, the fault parameter value of each feed line is added, you can obtain whole distribution system
Fault parameter value, so as to carry out clear accurately operating analysis to distribution system, the weak link for being quickly found out distribution system is entered
Row adjustment.
The distribution system operating analysis method that the present embodiment is provided, by be measured with this by the fault rate of different to-be-measured cells
The economic loss that cell failure is produced is multiplied, as the fault parameter value of the to-be-measured cell, in actual applications, it is only necessary to by each
The fault parameter value summation of to-be-measured cell, you can obtain the fault parameter value of whole piece target feeder line or whole distribution system, enter
And the element in distribution system is constituted according to fault parameter and be adjusted, it is to ensure the safe operation of distribution system, and existing
Technology is compared, and the method considers the fault rate and its economic loss brought of to-be-measured cell simultaneously, improves distribution system fortune
The accuracy of row analysis, quickly can provide more accurate, clearly failure risk reference for distribution traffic department.
Embodiment 2
A kind of distribution system operating analysis device is present embodiments provided, is particularly suited for the risk point of distribution system operation
Analysis, describes the party using a feeder line F1 in the distribution system in embodiment 1 shown in Fig. 2 in detail below as a example by target feeder line
Case, as shown in figure 3, including：Division module 31, acquisition module 32, generation module 33, computing module 34 and adjusting module 35,
Specifically, modules function is as follows：
Division module 31, for the target feeder line in distribution system is divided into multiple to-be-measured cells, referring specifically to enforcement
Detailed description in example 1 to step S1.
Acquisition module 32, for obtaining the fault rate of each to-be-measured cell, referring specifically in embodiment 1 to step S2
Describe in detail.
Generation module 33, uses for generating each type on target feeder line according to the user power utilization attribute on target feeder line
The loss of outage function at family, referring specifically to the detailed description in embodiment 1 to step S3.
Computing module 34, the failure for calculating each to-be-measured cell according to loss of outage function and fault rate respectively are joined
Number, referring specifically to the detailed description in embodiment 1 to step S4.
Adjusting module 35, for according to fault parameter adjust to-be-measured cell, referring specifically in embodiment 1 to the detailed of step S5
It is thin to describe.
Used as a kind of preferred version, generation module 33 includes：Taxon 331, for according to user power utilization attribute by institute
There is user to classify, user power utilization attribute includes：In user power utilization characteristic, user's power failure characteristic and user's productive life characteristic
One or more；First acquisition unit 332, for obtaining the loss of outage data of each type of user；Fitting unit 333, uses
It is fitted with the relation of customer outage hours respectively in the loss of outage data according to each type of user and obtains each class users
Loss of outage function.Referring specifically to the detailed description in embodiment 1 to the preferred version of step S3.
Used as a kind of preferred version, computing module 34 includes：Second acquisition unit 341, for obtaining each list to be measured
Total power load in the power off time and target feeder line of the target feeder line caused during first failure；First computing unit 342, is used for
Power off time, loss of outage function and total Calculation of electric charge according to target feeder line obtains the failure of each to-be-measured cell and damages
Lose；Second computing unit 343, obtains every for respectively the breakdown loss of each to-be-measured cell and corresponding fault rate are multiplied
The fault parameter value of one to-be-measured cell.Referring specifically to the detailed description in embodiment 1 to the preferred version of step S4.
Used as a kind of preferred version, breakdown loss is economic loss；To-be-measured cell includes：There is the part of switch and without switch
Part.Referring specifically to the detailed description in embodiment 1.
The distribution system operating analysis device that the present embodiment is provided, by be measured with this by the fault rate of different to-be-measured cells
The economic loss that cell failure is produced is multiplied, as the fault parameter value of the to-be-measured cell, in actual applications, it is only necessary to by each
The fault parameter value summation of to-be-measured cell, you can obtain the fault parameter value of whole piece target feeder line or whole distribution system, enter
And the element in distribution system is constituted according to fault parameter and be adjusted, it is to ensure the safe operation of distribution system, and existing
Technology is compared, and the method considers the fault rate and its economic loss brought of to-be-measured cell simultaneously, improves distribution system fortune
The accuracy of row analysis, quickly can provide more accurate, clearly failure risk reference for distribution traffic department.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.For
For those of ordinary skill in the art, the change or change of other multi-forms can also be made on the basis of the above description
It is dynamic.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or change
Among moving still in the protection domain of the invention.
Claims (10)
1. a kind of distribution system operating analysis method, it is characterised in that include：
Target feeder line in distribution system is divided into into multiple to-be-measured cells；
Obtain the fault rate of each to-be-measured cell；
Damaged according to the power failure that the user power utilization attribute on the target feeder line generates each type of user on the target feeder line
Lose function；
The fault parameter of each to-be-measured cell is calculated respectively according to the loss of outage function and the fault rate；
The to-be-measured cell is adjusted according to the fault parameter.
2. distribution system operating analysis method according to claim 1, it is characterised in that described according to the target feeder line
On user power utilization attribute generate the loss of outage function of each user on the target feeder line and include：
All users are classified according to the user power utilization attribute, the user power utilization attribute includes：User power utilization characteristic, user
One or more in power failure characteristic and user's productive life characteristic；
Obtain the loss of outage data of each type of user；
It is fitted according to the loss of outage data of each type of user and the relation of customer outage hours respectively and obtains each class
The loss of outage function of other user.
3. distribution system operating analysis method according to claim 1, it is characterised in that described according to the loss of outage
Function and the fault rate calculate the fault parameter of each to-be-measured cell respectively to be included：
Obtain in the power off time and the target feeder line of the target feeder line caused during each described to-be-measured cell failure
Total power load；
Power off time, the loss of outage function and total Calculation of electric charge according to the target feeder line obtains each
The breakdown loss of the to-be-measured cell；
Respectively the breakdown loss of each to-be-measured cell is multiplied with the corresponding fault rate and obtains treating described in each
Survey the fault parameter of unit.
4. distribution system operating analysis method according to claim 3, it is characterised in that the breakdown loss is economic damage
Lose.
5. distribution system operating analysis method according to any one of claim 1 to 4, it is characterised in that described to be measured
Unit includes：There are the part and the part without switch of switch.
6. a kind of distribution system operating analysis device, it is characterised in that include：
Division module, for being divided into multiple to-be-measured cells by the target feeder line in distribution system；
Acquisition module, for obtaining the fault rate of each to-be-measured cell；
Generation module, for generating each type on the target feeder line according to the user power utilization attribute on the target feeder line
The loss of outage function of user；
Computing module, for calculating each to-be-measured cell respectively according to the loss of outage function and the fault rate
Fault parameter；
Adjusting module, for adjusting the to-be-measured cell according to the fault parameter.
7. distribution system operating analysis device according to claim 6, it is characterised in that the generation module includes：
Taxon, for all users being classified according to the user power utilization attribute, the user power utilization attribute includes：User
With one or more in electrical characteristics, user's power failure characteristic and user's productive life characteristic；
First acquisition unit, for obtaining the loss of outage data of each type of user；
Fitting unit, for intending with the relation of customer outage hours respectively according to the loss of outage data of each type of user
Conjunction obtains the loss of outage function of each class users.
8. distribution system operating analysis method according to claim 6, it is characterised in that the computing module includes：
Second acquisition unit, the power off time of the target feeder line caused during for obtaining each described to-be-measured cell failure
With the total power load in the target feeder line；
First computing unit, for the power off time according to the target feeder line, the loss of outage function and total electricity consumption
Carry calculation obtains the breakdown loss of each to-be-measured cell；
Second computing unit, for being multiplied the breakdown loss of each to-be-measured cell with the corresponding fault rate respectively
Obtain the fault parameter of each to-be-measured cell.
9. distribution system operating analysis device according to claim 8, it is characterised in that the breakdown loss is economic damage
Lose.
10. the distribution system operating analysis device according to any one of claim 6 to 9, it is characterised in that described to be measured
Unit includes：There are the part and the part without switch of switch.
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