CN105022893B - Alternating-current charging pile system trouble analysis method - Google Patents
Alternating-current charging pile system trouble analysis method Download PDFInfo
- Publication number
- CN105022893B CN105022893B CN201510489121.1A CN201510489121A CN105022893B CN 105022893 B CN105022893 B CN 105022893B CN 201510489121 A CN201510489121 A CN 201510489121A CN 105022893 B CN105022893 B CN 105022893B
- Authority
- CN
- China
- Prior art keywords
- event
- failure
- alternating
- charging pile
- current charging
- 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.)
- Active
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Alternating-current charging pile system trouble analysis method of the present invention, is related to the analysis of electric fault, and step is to establish alternating-current charging pile fault Tree：Top event branch intermediate event branch bottom event again；Determine the logical relation between event in alternating-current charging pile fault Tree；Qualitative and quantitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree, tries to achieve the probability of top event T generations；The inventive method is that electric automobile reliably provides guarantee with alternating-current charging pile to charge.
Description
Technical field
Technical scheme is related to the analysis of electric fault, specifically alternating-current charging pile system trouble analysis side
Method.
Background technology
The fuel charger being functionally similar in gas station of alternating-current charging pile, can be fixed on the ground, be installed on public build
Build, in public building, market, Public Parking, residential area parking lot or the charging station that specially sets, be mainly supplied to car
The electric automobile for carrying charger uses.The input of alternating-current charging pile is directly connected to AC network, and output end is equipped with charging
Plug, for for charging electric vehicle.Alternating-current charging pile display screen can show charging modes, charge volume, charging interval and expense
Etc. information data, on the man-machine interactive interface that alternating-current charging pile provides, then it can carry out charging modes, charge volume, fill
The printing of the information data such as electric time and expense.
Alternating-current charging pile is the conventional auxiliary facility of charging electric vehicle, due to the convenient use of alternating-current charging pile, at present
Each state is all in actively development alternating-current charging pile construction.China is also in some flourishing cities, such as Beijing, Shanghai and Shenzhen at present
13 cities establish the pilot of alternating-current charging pile.As can be seen here, alternating-current charging pile development trend is swift and violent, but in test
It was found that faulty generation during the meeting of alternating-current charging pile system.It is right in order to ensure that electric automobile is reliably charged with alternating-current charging pile
The research of alternating-current charging pile reliability just seems particularly significant, wherein the accident analysis especially to alternating-current charging pile system.
The content of the invention
The technical problems to be solved by the invention are：Alternating-current charging pile system trouble analysis method is provided, is that one kind is based on
The alternating-current charging pile system trouble analysis method of fault tree, establishing " causes alternating-current charging pile system that the event of job failure occurs
Fault tree " (below referred to as " alternating-current charging pile fault Tree "), therefrom determine the logical relation between these events, then
Qualitative and quantitative analysis is carried out to the logical relation between event, so as to calculate the general of alternating-current charging pile system failure generation
Rate.
Technical scheme is used by the present invention solves the technical problem：Alternating-current charging pile system trouble analysis method, it is
A kind of alternating-current charging pile system trouble analysis method based on fault tree, step are as follows：
The first step, establish alternating-current charging pile fault Tree：
(1) top event is established：Top event be alternating-current charging pile system there occurs job failure, represent top event with T；
(2) intermediate event is established：Intermediate event is the reason for causing top event to occur event, and intermediate event collection is represented with E
Close, intermediate event set E includes three one-level intermediate events：Main circuit failure E1, control circuit failure E2 and man-machine interaction electricity
Road failure E3；There are things among four two levels in the reason for wherein causing one-level intermediate event control circuit failure E2 to occur event
Part：Switching value failure E21, master control borad fault E22, CAN interface fault E23 and imput output circuit failure E24, cause two
There is a three-level intermediate event in the reason for level intermediate event master control borad fault E22 occurs event：Reset failure E221；
(3) bottom event is determined：The bottom event is the reason for causing intermediate event to occur event, and causes top event to be sent out
The reason for raw most initial event, the set of bottom event is represented with X, the set X of bottom event includes circuit breaker failure X1, intelligence electricity
Table failure X2, contactor failure X3, fuse failure X4, surge arrester failure X5, relay failure X6, scram button failure X7,
Indicate lamp failure X8, keyboard failure X9, card reader failure X10, liquid crystal display failure X11, mechanical switch amount failure X12, numeral letter
Number switching value failure X13,5V power failure X14, MPU failure X15, hand-reset failure X16, the failure that automatically resets X17, with it is upper
Position machine interface circuit failure X18 and BMS interface fault X19, acquisition of information circuit failure X20, display circuit failure X21
With system power supply failure X22；
(4) alternating-current charging pile fault Tree is established：AC charging is established by fault tree system analysis computer software
Stake fault Tree, the structure of the fault tree are divided into four parts, and Part I is by top event T and its three branch one-levels
Between event：Main circuit failure E1, control circuit failure E2, man-machine interaction fault E3 and a bottom event are system power supply event
Hinder X22 to form；Part II is by one-level intermediate event main circuit failure E1 and its five branch bottom events：Circuit breaker failure
X1, intelligent electric meter failure X2, contactor failure X3, fuse failure X4 and surge arrester failure X5 are formed；Part III is from one-level
Start branch at intermediate event control circuit failure E2, three layers of continuous branch, wherein, first layer includes one-level intermediate event control
Fault E2 processed four branch two level intermediate events：Switching value failure E21, master control borad fault E22, the event of CAN interface circuit
Hinder E23, imput output circuit failure E24 and two branch bottom events：Relay failure X6 and scram button failure X7；The second layer
Include two level intermediate event switching value failure E21 two branch bottom events：Mechanical switch amount failure X12 and data signal are opened
Pass amount failure X13, a two level intermediate event master control borad fault E22 branch three-level intermediate event reset failure E221 and two
Branch bottom event：5V power failures X14 and MPU failures X15, two level intermediate event CAN interface fault E23 two branches
Bottom event：With host computer interface circuit failure X18 and with BMS interface fault X19 and two level intermediate event input and output
Fault E24 two branch bottom events：Acquisition of information circuit failure X20 and display circuit failure X21；Third layer includes three
Level intermediate event resets failure E221 two branch bottom events：The hand-reset failure X16 and failure X17 that automatically resets；4th
Partly by one-level intermediate event man-machine interaction fault E3 four branch bottom events：Indicate lamp failure X8, keyboard failure X9,
Card reader failure X10 and liquid crystal display failure X11 is formed；
Second step, determine the logical relation between event in alternating-current charging pile fault Tree：
The logical relation that the first step is established in alternating-current charging pile fault Tree between event refers to intermediate event each other
Between, between intermediate event and bottom event, logical AND or logic or relation between bottom event, specifically include：Middle thing
It is logic or relation between part E1, intermediate event E2, intermediate event E3 and bottom event X22, bottom event X1, bottom event X2, bottom thing
It is logic or relation between part X3, bottom event X4, bottom event X5, bottom event X8, bottom event X9, bottom event X10, bottom event X11
Between be logic or relation, intermediate event E21, intermediate event E22, intermediate event E23, intermediate event E24 and bottom event X6, bottom
It is logic or relation between event X7, is logic or relation between bottom event X12, bottom event X13, intermediate event E221 and bottom thing
It is logic or relation between part X14, bottom event X15, is logic or relation between bottom event X18, bottom event X19, bottom event
It is logical AND relation between X20, bottom event X21, is logical AND relation between bottom event X16, bottom event X17；
3rd step, qualitative and quantitative point is carried out to the logical relation between event in alternating-current charging pile fault Tree
Analysis, try to achieve the probability of top event T generations：
(1) qualitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree：
From above-mentioned second step, alternating-current charging pile system occurs in the fault tree of the event of job failure between event
Only comprising OR gate and be all mutual statistical independence with door, all bottom events in logical relation, therefore the fault tree is dull in parallel
Fault tree, thus fault tree calculates minimal cut set, and minimal cut set is analyzed, and is to the alternating-current charging pile system failure
Logical relation in tree between event carries out qualitative analysis, calculates minimal cut set using descending method, its step is：From top event T
Start, step by step with the door event in incoming event permutation table, running into OR gate, then incoming event respectively accounts for a line, runs into and is then inputted with door
Event writes same a line, and all intermediate event E are replaced as stopping during bottom event X in table, remove repetition unnecessary in each row
Event and repeat go, obtain the cut set of fault tree, all cut sets be compared to each other, remove by comprising cut set, it is remaining to be exactly
Whole minimal cut sets of above-mentioned fault tree, including following 20：{X1}、{X2}、{X3}、{X4}、{X5}、{X6}、{X7}、
{ X8 }, { X9 }, { X10 }, { X13 }, { X14 }, { X15 }, { X16, X17 }, { X18 }, { X19 }, { X20, X21 } and { X22 }, composition
The number of the bottom event of minimal cut set is the exponent number of minimal cut set, then wherein single order minimal cut set 18, second order minimal cut set 2
Individual, single order minimal cut set only has a bottom event, and the bottom event may result in the alternating-current charging pile system failure, therefore be
The object paid close attention in fail-safe analysis, also it is the weak link of system, the weakness of above-mentioned alternating-current charging pile system reliability
Link is：X1~X15, X18, X19 and X22；
(2) quantitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree, tries to achieve top event T
Probability of happening be calculate the alternating-current charging pile system failure generation probability：
According to the minimal cut set of above-mentioned determination, the fault tree of the event of alternating-current charging pile system generation job failure is obtained
Structure function is defined as：
In formula (1), Y (t) is the state vector of system, i.e., the chance event that bottom event X occurs in t,
When all minimal cut sets of known above-mentioned fault tree, and during the probability of known each bottom event X generations, then all
Under conditions of bottom event X is separate, quantitative calculating will be carried out to the fault tree, will be tried to achieve using the addition formula method of probability useful
Part T probability of happening Fs(t), process is as follows：
The invalid cost type of each component units of alternating-current charging pile system is exponential distribution, when in known minimal cut set
The maximum fault rate λ of each elementary cellxWhen, and by can repair for event calculated, calculation formula is：
In formula (2), Fx(t) the unreliable degree occurred for bottom event X, μxBottom event X repair rate, for simplification, make μx=
0.0001/ year, then calculate top event T probability of happening Fs(t) formula is as follows：
The calculating in quantitative analysis is carried out to the logical relation between event in above-mentioned alternating-current charging pile fault Tree to adopt
Completed with computer.
Above-mentioned alternating-current charging pile system trouble analysis method, the alternating-current charging pile system is mainly by power subsystem, main electricity
Road unit, control unit, man-machine interaction unit and communication unit composition, are known；The fault tree system analysis computer
Software is also known, from CAFTA fault Tree fail-safe analyses V1.3.
The beneficial effects of the invention are as follows：The substantive distinguishing features for the protrusion that the present invention has and marked improvement are that the present invention is
A kind of alternating-current charging pile system trouble analysis method based on fault tree, establishes alternating-current charging pile fault Tree, therefrom determines
Logical relation between these events, then qualitative and quantitative analysis is carried out to the logical relation between event, so as to calculate
The probability that the alternating-current charging pile system failure occurs.Further illustrate is that the present invention is according to the alternating-current charging pile system failure
Statistics and analysis, the fault tree of its critical component is constructed, carried out qualitative analysis using descending method, it is determined that each bottom event pair
The influence degree of top event, the minimal cut set of alternating-current charging pile system is obtained, exchange is being filled using additive law of probability method
Electric stake system has done Quantitative Reliability calculating, has obtained the probability structure importance data of basic component units in minimal cut set,
Have found influences the principal element of alternating-current charging pile system reliability, for improve its reliability and service life provide it is important according to
According to, for recognize its failure generation rule, predict failure generation, improve system operation reliability lay a good foundation.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the first floor schematic diagram of the alternating-current charging pile fault Tree of the present invention.
Fig. 2 is the fault tree schematic diagram of main circuit failure E1 in Fig. 1.
Fig. 3 is the fault tree schematic diagram of control circuit failure E2 in Fig. 1.
Fig. 4 is the fault tree schematic diagram of man-machine interaction fault E3 in Fig. 1.
Embodiment
Embodiment illustrated in fig. 1 shows that the structure of the first floor of alternating-current charging pile fault Tree of the invention is：Top event T
There are three branch one-level intermediate events：Main circuit failure E1, control circuit failure E2, man-machine interaction fault E3 and a bottom
Event system power failure X22；It is logic or pass between intermediate event E1, intermediate event E2, intermediate event E3 and bottom event X22
System.
Embodiment illustrated in fig. 2 shows that the structure of the main circuit failure E1 fault trees in the present invention is：One-level intermediate event master
Fault E1 has five branch bottom events：Circuit breaker failure X1, intelligent electric meter failure X2, contactor failure X3, fuse event
Hinder X4 and surge arrester failure X5；Between bottom event X1, bottom event X2, bottom event X3, bottom event X4 and bottom event X5 for logic or
Relation.
Embodiment illustrated in fig. 3 shows that the structure of the control circuit failure E2 fault trees in the present invention is：Thing among from one-level
Branch is begun with part control circuit failure E2, continuous branch turns into three layers, wherein, first layer controls including one-level intermediate event
Fault E2 four branch two level intermediate events：Switching value failure E21, master control borad fault E22, CAN interface fault
E23, imput output circuit failure E24 and two branch bottom events：Relay failure X6 and scram button failure X7, intermediate event
It is logic or relation between E21, intermediate event E22, intermediate event E23, intermediate event E24, bottom event X6 and bottom event X7；
The second layer includes two level intermediate event switching value failure E21 two branch bottom events：Mechanical switch amount failure X12 and numeral
Signaling switch amount failure X13, a two level intermediate event master control borad fault E22 branch three-level intermediate event reset failure E221
With two branch bottom events：5V power failures X14 and MPU failures X15, the two of two level intermediate event CAN interface fault E23
Individual branch bottom event：It is with host computer interface circuit failure X18 and defeated with BMS interface fault X19 and two level intermediate event
Enter output circuit failure E24 two branch bottom events：Acquisition of information circuit failure X20 and display circuit failure X21；Bottom event
Be logic or relation between X12 and bottom event X13, between intermediate event E221, bottom event X14 and bottom event X15 for logic or
Relation, it is logic or relation between bottom event X18 and bottom event X19, is closed between bottom event X20 and bottom event X21 for logical AND
System；Third layer includes two branch bottom events that three-level intermediate event resets failure E221：Hand-reset failure X16 answers with automatic
Position failure X17；It is logical AND relation between bottom event X16 and bottom event X17.
Embodiment illustrated in fig. 4 shows that the structure of man-machine interaction fault E3 fault trees of the invention is：Thing among one-level
Part man-machine interaction fault E3 has four branch bottom events：Indicate lamp failure X8, keyboard failure X9, card reader failure X10 and
Liquid crystal display failure X11；It is logic or relation between bottom event X8, bottom event X9, bottom event X10 and bottom event X11.
Square in above-mentioned figure represents intermediate event, ellipse representation bottom event.
Embodiment 1
The alternating-current charging pile system trouble analysis method of the present embodiment, it is a kind of alternating-current charging pile system based on fault tree
Failure analysis methods, step are as follows：
The first step, establish alternating-current charging pile fault Tree：
(1) top event is established：Top event be alternating-current charging pile system there occurs job failure, represent top event with T；
(2) intermediate event is established：Intermediate event is the reason for causing top event to occur event, and intermediate event collection is represented with E
Close, intermediate event set E includes three one-level intermediate events：Main circuit failure E1, control circuit failure E2 and man-machine interaction electricity
Road failure E3；There are things among four two levels in the reason for wherein causing one-level intermediate event control circuit failure E2 to occur event
Part：Switching value failure E21, master control borad fault E22, CAN interface fault E23 and imput output circuit failure E24, cause two
There is a three-level intermediate event in the reason for level intermediate event master control borad fault E22 occurs event：Reset failure E221；
(3) bottom event is determined：The bottom event is the reason for causing intermediate event to occur event, and causes top event to be sent out
The reason for raw most initial event, the set of bottom event is represented with X, the set X of bottom event includes circuit breaker failure X1, intelligence electricity
Table failure X2, contactor failure X3, fuse failure X4, surge arrester failure X5, relay failure X6, scram button failure X7,
Indicate lamp failure X8, keyboard failure X9, card reader failure X10, liquid crystal display failure X11, mechanical switch amount failure X12, numeral letter
Number switching value failure X13,5V power failure X14, MPU failure X15, hand-reset failure X16, the failure that automatically resets X17, with it is upper
Position machine interface circuit failure X18 and BMS interface fault X19, acquisition of information circuit failure X20, display circuit failure X21
With system power supply failure X22；
(4) alternating-current charging pile fault Tree is established：Establish and exchange by fault tree system analysis computer software-FTAS
Charging pile system fault tree, the structure of the fault tree are divided into four parts, and Part I is by top event T and its three branches one
Level intermediate event：Main circuit failure E1, control circuit failure E2, man-machine interaction fault E3 and a bottom event are system electricity
Source failure X22 is formed；Part II is by one-level intermediate event main circuit failure E1 and its five branch bottom events：Breaker event
Hinder X1, intelligent electric meter failure X2, contactor failure X3, fuse failure X4 and surge arrester failure X5 to form；Part III is from one
Level intermediate event control circuit failure E2 place's beginning branches, three layers of continuous branch, wherein, first layer includes one-level intermediate event
Control circuit failure E2 four branch two level intermediate events：Switching value failure E21, master control borad fault E22, CAN interface circuit
Failure E23, imput output circuit failure E24 and two branch bottom events：Relay failure X6 and scram button failure X7；Second
Layer includes two level intermediate event switching value failure E21 two branch bottom events：Mechanical switch amount failure X12 and data signal
Switching value failure X13, a two level intermediate event master control borad fault E22 branch three-level intermediate event reset failure E221 and two
Individual branch bottom event：5V power failures X14 and MPU failures X15, two points of two level intermediate event CAN interface fault E23
Branch bottom event：It is with host computer interface circuit failure X18 and defeated with BMS interface fault X19 and the input of two level intermediate event
Go out fault E24 two branch bottom events：Acquisition of information circuit failure X20 and display circuit failure X21；Third layer includes
Three-level intermediate event resets failure E221 two branch bottom events：The hand-reset failure X16 and failure X17 that automatically resets；The
Four parts by one-level intermediate event man-machine interaction fault E3 four branch bottom events：Indicate lamp failure X8, keyboard failure
X9, card reader failure X10 and liquid crystal display failure X11 are formed；
Second step, determine the logical relation between event in alternating-current charging pile fault Tree：
The logical relation that the first step is established in alternating-current charging pile fault Tree between event refers to intermediate event each other
Between, between intermediate event and bottom event, logical AND or logic or relation between bottom event, specifically include：Middle thing
It is logic or relation between part E1, intermediate event E2, intermediate event E3 and bottom event X22, bottom event X1, bottom event X2, bottom thing
It is logic or relation between part X3, bottom event X4, bottom event X5, bottom event X8, bottom event X9, bottom event X10, bottom event X11
Between be logic or relation, intermediate event E21, intermediate event E22, intermediate event E23, intermediate event E24 and bottom event X6, bottom
It is logic or relation between event X7, is logic or relation between bottom event X12, bottom event X13, intermediate event E221 and bottom thing
It is logic or relation between part X14, bottom event X15, is logic or relation between bottom event X18, bottom event X19, bottom event
It is logical AND relation between X20, bottom event X21, is logical AND relation between bottom event X16, bottom event X17；
3rd step, qualitative and quantitative point is carried out to the logical relation between event in alternating-current charging pile fault Tree
Analysis, try to achieve the probability of top event T generations：
(1) qualitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree：
From above-mentioned second step, alternating-current charging pile system occurs in the fault tree of the event of job failure between event
Only comprising OR gate and be all mutual statistical independence with door, all bottom events in logical relation, therefore the fault tree is dull in parallel
Fault tree, thus fault tree calculates minimal cut set, and minimal cut set is analyzed, and is to the alternating-current charging pile system failure
Logical relation in tree between event carries out qualitative analysis, calculates minimal cut set using descending method, its step is：From top event T
Start, step by step with the door event in incoming event permutation table, running into OR gate, then incoming event respectively accounts for a line, runs into and is then inputted with door
Event writes same a line, and all intermediate event E are replaced as stopping during bottom event X in table, remove repetition unnecessary in each row
Event and repeat go, obtain the cut set of fault tree, all cut sets be compared to each other, remove by comprising cut set, it is remaining to be exactly
Whole minimal cut sets of above-mentioned fault tree, including following 20：{X1}、{X2}、{X3}、{X4}、{X5}、{X6}、{X7}、
{ X8 }, { X9 }, { X10 }, { X13 }, { X14 }, { X15 }, { X16, X17 }, { X18 }, { X19 }, { X20, X21 } and { X22 }, composition
The number of the bottom event of minimal cut set is the exponent number of minimal cut set, then wherein single order minimal cut set 18, second order minimal cut set 2
Individual, single order minimal cut set only has a bottom event, and the bottom event may result in the alternating-current charging pile system failure, therefore be
The object paid close attention in fail-safe analysis, also it is the weak link of system, the weakness of above-mentioned alternating-current charging pile system reliability
Link is：X1~X15, X18, X19 and X22；
It is above-mentioned to ask the process of the Minimizing Cut Sets of Fault Trees as shown in table 1 using descending hair method.
The descending method of table 1 seeks Minimizing Cut Sets of Fault Trees
In table, step 5 is all minimal cut sets for the alternating-current charging pile system that descending method obtains, totally 20.And form most
The number of the bottom event of small cut set is the exponent number of minimal cut set, then wherein single order minimal cut set 18, second order minimal cut set 2.
Single order minimal cut set only has a bottom event, and the bottom event may result in the system failure, therefore be in fail-safe analysis
The object paid close attention to, also it is the weak link of system.
(2) quantitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree, tries to achieve top event T
Probability of happening be calculate the alternating-current charging pile system failure generation probability：
Understand that the successful criterion of system is by the qualitative analysis of fault tree：It is as long as there is a minimal cut set, then useful
Part necessarily occurs.The state of system can be so represented with the structure function of minimal cut set.According to the minimal cut set of above-mentioned determination,
The structure function for obtaining the fault tree of the event of alternating-current charging pile system generation job failure is defined as：
In formula (1), Y (t) is the state vector of system, i.e., the chance event that bottom event X occurs in t,
When all minimal cut sets of known above-mentioned fault tree, and during the probability of known each bottom event X generations, then all
Under conditions of bottom event X is separate, quantitative calculating can be carried out to the fault tree, is tried to achieve using the addition formula method of probability useful
Part T probability of happening Fs(t), process is as follows：
The invalid cost type of each component units of alternating-current charging pile system is exponential distribution, when in known minimal cut set
The maximum fault rate λ of each elementary cellxWhen, and by can repair for event calculated, calculation formula is：
In formula (2), Fx(t) the unreliable degree occurred for bottom event X, μxFor bottom event X repair rate, for simplification, μ is madex=
0.0001/ year, then calculate top event T probability of happening Fs(t) formula is as follows：
The maximum fault rate λ of each elementary cell in minimal cut set in estimation formula (2)xAs shown in table 2,
The maximum fault rate λ of each elementary cell in the minimal cut set of table 2.x
The structure function and aforesaid equation (3) of the fault tree of the event of job failure occur by alternating-current charging pile system
The analysis for carrying out system reliability calculates, and ultimately forming fail-safe analysis result as shown in table 3, (it is 1 to make the working time
Year).
The probabilistic compct of elementary cell in the minimal cut set of table 3.
The calculating in quantitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree using meter
Calculation machine is completed.
In above-described embodiment, the alternating-current charging pile system is mainly by power subsystem, main circuit unit, control unit, people
Machine interactive unit and communication unit composition, are known；The fault tree system analysis computer software is also known, is come from
CAFTA fault Tree fail-safe analyses V1.3.
Claims (1)
1. alternating-current charging pile system trouble analysis method, it is characterised in that：It is a kind of alternating-current charging pile system based on fault tree
Failure analysis methods, step are as follows：
The first step, establish alternating-current charging pile fault Tree：
(1) top event is established：Top event be alternating-current charging pile system there occurs job failure, represent top event with T；
(2) intermediate event is established：Intermediate event is the reason for causing top event to occur event, and intermediate event set is represented with E, in
Between event sets E include three one-level intermediate events：Main circuit failure E1, control circuit failure E2 and man-machine interaction fault
E3；Wherein cause one-level intermediate event control circuit failure E2 occur the reason for event in have four two level intermediate events：Switch
Failure E21, master control borad fault E22, CAN interface fault E23 and imput output circuit failure E24 are measured, is caused among two level
There is a three-level intermediate event in the reason for event master control borad fault E22 occurs event：Reset failure E221；
(3) bottom event is determined：The bottom event is the reason for causing intermediate event to occur event, and causes what top event occurred
The reason for most initial event, represent the set of bottom event with X, the set X of bottom event include circuit breaker failure X1, intelligent electric meter therefore
Hinder X2, contactor failure X3, fuse failure X4, surge arrester failure X5, relay failure X6, scram button failure X7, instruction
Lamp failure X8, keyboard failure X9, card reader failure X10, liquid crystal display failure X11, mechanical switch amount failure X12, data signal are opened
Pass amount failure X13,5V power failure X14, MPU failure X15, hand-reset failure X16, the failure that automatically resets X17 and host computer
Interface circuit failure X18, with BMS interface fault X19, acquisition of information circuit failure X20, display circuit failure X21 and being
Unite power failure X22；
(4) alternating-current charging pile fault Tree is established：Alternating-current charging pile system is established by fault tree system analysis computer software
System fault tree, the structure of the fault tree are divided into four parts, and Part I is by thing among top event T and its three branch one-levels
Part：Main circuit failure E1, control circuit failure E2, man-machine interaction fault E3 and a bottom event are system power supply failure
X22 is formed；Part II is by one-level intermediate event main circuit failure E1 and its five branch bottom events：Circuit breaker failure X1,
Intelligent electric meter failure X2, contactor failure X3, fuse failure X4 and surge arrester failure X5 are formed；Part III is among one-level
Start branch at event control fault E2, three layers of continuous branch, wherein, first layer includes one-level intermediate event control electricity
Road failure E2 four branch two level intermediate events：Switching value failure E21, master control borad fault E22, CAN interface fault
E23, imput output circuit failure E24 and two branch bottom events：Relay failure X6 and scram button failure X7；In the second layer
Include two level intermediate event switching value failure E21 two branch bottom events：Mechanical switch amount failure X12 and digital signaling switch
Measure failure X13, a two level intermediate event master control borad fault E22 branch three-level intermediate event resets failure E221 and two points
Branch bottom event：5V power failures X14 and MPU failures X15, two level intermediate event CAN interface fault E23 two branch bottoms
Event：It is with host computer interface circuit failure X18 and electric with BMS interface fault X19 and the input and output of two level intermediate event
Road failure E24 two branch bottom events：Acquisition of information circuit failure X20 and display circuit failure X21；Third layer includes three-level
Intermediate event resets failure E221 two branch bottom events：The hand-reset failure X16 and failure X17 that automatically resets；4th
Divide four branch bottom events by one-level intermediate event man-machine interaction fault E3：Indicate lamp failure X8, keyboard failure X9, read
Card device failure X10 and liquid crystal display failure X11 is formed；
Second step, determine the logical relation between event in alternating-current charging pile fault Tree：
Between the logical relation that the first step is established in alternating-current charging pile fault Tree between event refers to intermediate event,
Between intermediate event and bottom event, logical AND or logic or relation between bottom event, specifically include：Intermediate event E1,
Be logic or relation between intermediate event E2, intermediate event E3 and bottom event X22, bottom event X1, bottom event X2, bottom event X3,
It is logic or relation between bottom event X4, bottom event X5, is between bottom event X8, bottom event X9, bottom event X10, bottom event X11
Logic or relation, intermediate event E21, intermediate event E22, intermediate event E23, intermediate event E24 and bottom event X6, bottom event X7
Between be logic or relation, be logic or relation between bottom event X12, bottom event X13, intermediate event E221 and bottom event X14,
It is logic or relation between bottom event X15, is logic or relation between bottom event X18, bottom event X19, bottom event X20, bottom thing
It is logical AND relation between part X21, is logical AND relation between bottom event X16, bottom event X17；
3rd step, qualitative and quantitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree, is asked
Obtain the probability that top event T occurs：
(1) qualitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree：
From above-mentioned second step, the logic between event in the fault tree of the event of job failure occurs for alternating-current charging pile system
Only comprising OR gate and be all mutual statistical independence with door, all bottom events in relation, therefore the fault tree is dull parallel failure
Tree, thus fault tree calculates minimal cut set, and minimal cut set is analyzed, and is in alternating-current charging pile fault Tree
Logical relation between event carries out qualitative analysis, calculates minimal cut set using descending method, its step is：Since top event T,
The door event in incoming event permutation table is used step by step, and running into OR gate, then incoming event respectively accounts for a line, runs into and door then incoming event
Same a line is write, all intermediate event E are replaced as stopping during bottom event X in table, remove repeated events unnecessary in each row
With repeat go, obtain the cut set of fault tree, all cut sets be compared to each other, remove by comprising cut set, remaining is exactly above-mentioned
Whole minimal cut sets of fault tree, including following 20：{X1}、{X2}、{X3}、{X4}、{X5}、{X6}、{X7}、{X8}、
{ X9 }, { X10 }, { X13 }, { X14 }, { X15 }, { X16, X17 }, { X18 }, { X19 }, { X20, X21 } and { X22 }, composition are minimum
The number of the bottom event of cut set is the exponent number of minimal cut set, then wherein single order minimal cut set 18, second order minimal cut set 2, one
Rank minimal cut set only has a bottom event, and the bottom event may result in the alternating-current charging pile system failure, therefore be reliable
Property analysis in the object paid close attention to, be also system weak link, the weak link of above-mentioned alternating-current charging pile system reliability
For：X1~X15, X18, X19 and X22；
(2) quantitative analysis is carried out to the logical relation between event in alternating-current charging pile fault Tree, tries to achieve top event T hair
Raw probability is the probability for calculating the generation of the alternating-current charging pile system failure：
According to the minimal cut set of above-mentioned determination, the structure of the fault tree of the event of alternating-current charging pile system generation job failure is obtained
Function is defined as：
In formula (1), Y (t) is the state vector of system, i.e., the chance event that bottom event X occurs in t,
When all minimal cut sets of known above-mentioned fault tree, and during the probability of known each bottom event X generations, then in all bottom things
Under conditions of part X is separate, quantitative calculating will be carried out to the fault tree, top event T is tried to achieve using the addition formula method of probability
Probability of happening Fs(t), process is as follows：
The invalid cost type of each component units of alternating-current charging pile system is exponential distribution, when each base in known minimal cut set
The maximum fault rate λ of this unitxWhen, and by can repair for event calculated, calculation formula is：
<mrow>
<msub>
<mi>F</mi>
<mi>x</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>t</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<msub>
<mi>&lambda;</mi>
<mi>x</mi>
</msub>
<mrow>
<msub>
<mi>&lambda;</mi>
<mi>x</mi>
</msub>
<mo>+</mo>
<msub>
<mi>&mu;</mi>
<mi>x</mi>
</msub>
</mrow>
</mfrac>
<mo>&lsqb;</mo>
<mn>1</mn>
<mo>-</mo>
<msup>
<mi>e</mi>
<mrow>
<mo>-</mo>
<mrow>
<mo>(</mo>
<msub>
<mi>&lambda;</mi>
<mi>x</mi>
</msub>
<mo>-</mo>
<msub>
<mi>&mu;</mi>
<mi>x</mi>
</msub>
<mo>)</mo>
</mrow>
<mi>t</mi>
</mrow>
</msup>
<mo>&rsqb;</mo>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>2</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
In formula (2), Fx(t) the unreliable degree occurred for bottom event X, μxBottom event X repair rate, for simplification, make μx=
0.0001/ year, then calculate top event T probability of happening Fs(t) formula is as follows：
<mrow>
<msub>
<mi>F</mi>
<mi>s</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>t</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mi>P</mi>
<mo>{</mo>
<mi>&phi;</mi>
<mo>&lsqb;</mo>
<mi>Y</mi>
<mrow>
<mo>(</mo>
<mi>t</mi>
<mo>)</mo>
</mrow>
<mo>&rsqb;</mo>
<mo>=</mo>
<mn>1</mn>
<mo>}</mo>
<mo>=</mo>
<mn>1</mn>
<mo>-</mo>
<munderover>
<mo>&Pi;</mo>
<mn>1</mn>
<mn>20</mn>
</munderover>
<mo>&lsqb;</mo>
<mn>1</mn>
<mo>-</mo>
<munder>
<mo>&Pi;</mo>
<mrow>
<mi>x</mi>
<mo>&Element;</mo>
<msub>
<mi>C</mi>
<mi>i</mi>
</msub>
</mrow>
</munder>
<msub>
<mi>F</mi>
<mi>x</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>t</mi>
<mo>)</mo>
</mrow>
<mo>&rsqb;</mo>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
<mo>.</mo>
</mrow>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489121.1A CN105022893B (en) | 2015-08-11 | 2015-08-11 | Alternating-current charging pile system trouble analysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489121.1A CN105022893B (en) | 2015-08-11 | 2015-08-11 | Alternating-current charging pile system trouble analysis method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105022893A CN105022893A (en) | 2015-11-04 |
| CN105022893B true CN105022893B (en) | 2018-01-12 |
Family
ID=54412860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510489121.1A Active CN105022893B (en) | 2015-08-11 | 2015-08-11 | Alternating-current charging pile system trouble analysis method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105022893B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270851A (en) * | 2018-08-17 | 2019-01-25 | 北京航空航天大学 | The design method of human-computer interaction Dynamic fault tree cognition overload fault logic gate |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120886B (en) * | 2016-11-30 | 2019-12-10 | 比亚迪股份有限公司 | Method and system for judging fault of wireless charging system |
| CN108268487A (en) * | 2016-12-30 | 2018-07-10 | 河南辉煌软件有限公司 | A kind of fault detection method of Natural Railway Disasters and foreign body intrusion detecting system |
| CN106934522B (en) * | 2017-01-25 | 2021-12-03 | 上海蔚来汽车有限公司 | Offline scheduling method for energy supplementing resources |
| CN107239668B (en) * | 2017-06-13 | 2020-09-01 | 重庆大学 | Numerical control grinding machine hydraulic system fault tree analysis method based on breakpoint model |
| CN107748701B (en) * | 2017-10-16 | 2021-04-27 | 云南电网有限责任公司电力科学研究院 | Reliability analysis method for electric energy metering automation system |
| CN108876057A (en) * | 2018-07-24 | 2018-11-23 | 合肥阳光新能源科技有限公司 | A kind of failure prediction method of micro-capacitance sensor, device and electronic equipment |
| EP3671384A1 (en) * | 2018-12-18 | 2020-06-24 | Siemens Aktiengesellschaft | Computer-implemented method for generating a mixed-layer fault tree of a multi-component system combining different layers of abstraction |
| CN111144606B (en) * | 2019-05-17 | 2020-09-15 | 深圳市德塔防爆电动汽车有限公司 | Safety failure risk prediction method for electric vehicle and electric vehicle |
| CN110221198B (en) * | 2019-05-31 | 2021-04-30 | 天地（常州）自动化股份有限公司 | Coal mine underground combination switch fault diagnosis method based on fault tree |
| CN112801390A (en) * | 2021-02-04 | 2021-05-14 | 天津科技大学 | Uncertain fault tree-based maintenance optimization method and device for underwater production system |
| US20220342412A1 (en) * | 2021-04-26 | 2022-10-27 | Saudi Arabian Oil Company | Instant power failure detection method and apparatus to discard power failure as case scenario in flare systems design |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033789A (en) * | 2010-12-03 | 2011-04-27 | 北京理工大学 | Reliability analysis method for embedded safety-critical system |
| CN102436519A (en) * | 2011-08-23 | 2012-05-02 | 戴志辉 | Method for synthetically evaluating dynamic reliability of power system automatic device |
| CN103226659A (en) * | 2013-04-18 | 2013-07-31 | 河海大学常州校区 | Cutter suction dredger fault analysis method based on fault tree analysis method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012115095A1 (en) * | 2011-02-22 | 2012-08-30 | 日本電気株式会社 | System for analysing reliability of fault tree system, programme and method for analysing reliability of fault tree system |
-
2015
- 2015-08-11 CN CN201510489121.1A patent/CN105022893B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033789A (en) * | 2010-12-03 | 2011-04-27 | 北京理工大学 | Reliability analysis method for embedded safety-critical system |
| CN102436519A (en) * | 2011-08-23 | 2012-05-02 | 戴志辉 | Method for synthetically evaluating dynamic reliability of power system automatic device |
| CN103226659A (en) * | 2013-04-18 | 2013-07-31 | 河海大学常州校区 | Cutter suction dredger fault analysis method based on fault tree analysis method |
Non-Patent Citations (3)
| Title |
|---|
| 基于PLC的电动汽车交流充电桩控制***研究;袁金云等;《青岛大学学报（工程技术版）》;20150630;第30卷(第2期);第38页倒数第2段至第40页第3段 * |
| 基于故障树分析法的断路器故障分析;崔红英等;《低压电器》;20120315(第5期);第8页右栏倒数第1段至第10页左栏第1段、第11页左栏倒数第1段至右栏倒数第1段 * |
| 基于故障树法的感应电动机软起动***可靠性研究;杜江等;《低压电器》;20080215(第3期);全文 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270851A (en) * | 2018-08-17 | 2019-01-25 | 北京航空航天大学 | The design method of human-computer interaction Dynamic fault tree cognition overload fault logic gate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105022893A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105022893B (en) | Alternating-current charging pile system trouble analysis method | |
| CN104734364B (en) | The method and system of relay protection device of intelligent substation SV, GOOSE input test | |
| CN103440401B (en) | Improve the emergent control measure risk quantification appraisal procedure of transmitting capacity of the electric wire netting | |
| CN102193504B (en) | Safety and stability control system modeling method in power system dynamic simulation | |
| CN104901306B (en) | Power grid operation safety margin calculating method taking cascading faults into consideration | |
| CN103744002B (en) | A kind of fault section recognition methods of cable based on current temporary state amount classified analysis on major constituents-line mixed power transmission line | |
| CN105653764A (en) | Method for online estimating and pre-warning grid safety accident risk levels | |
| CN102436766B (en) | Simulation training method of relay protection in subway OCC power dispatching | |
| CN103995172B (en) | Method for on-line monitoring of load current of GIS bus of substation | |
| CN103714387A (en) | Power grid risk refined assessment method | |
| CN102931727A (en) | Topological anti-error check method of power dispatching master station type integrated intelligent anti-error system | |
| CN105445585B (en) | The method for diagnosing faults and system of power grid primary circuit | |
| CN105606931A (en) | Quantum-genetic-algorithm-based fault diagnosis method for medium-voltage distribution network | |
| CN104103019A (en) | Operation risk assessment method and assessment system of power distribution network containing distributed power supply | |
| CN104166940A (en) | Method and system for assessing power distribution network operation risk | |
| CN103218754A (en) | Risk test method and risk test device for power gird dispatching operation | |
| CN106527394A (en) | ECPS (Electric Cyber-Physical System) cascading fault risk assessment method of considering multiple information factors | |
| CN113437805B (en) | Station domain visual anti-misoperation early warning method based on secondary loop online monitoring | |
| CN103632311A (en) | Fault examining system and method for power grid operation | |
| CN104112076A (en) | Fuzzy mathematics based operational risk assessment method and fuzzy mathematics based operational risk assessment system | |
| CN104155572B (en) | Fault line selection method for same-tower double-circuit direct current transmission line | |
| CN104037760A (en) | Anticipated accident selection method for electric power system with uncertain injection power | |
| CN102590698B (en) | Small current grounding line selection device and control method of voltage disturbance locked line selection | |
| CN116566056A (en) | Energy management analysis system of rail transit traction power supply system | |
| CN108090626A (en) | A kind of Meshing Method of distribution net gridding planning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |