CN105591368B - Method and device for revising working parameters of fuse - Google Patents
Method and device for revising working parameters of fuse Download PDFInfo
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- CN105591368B CN105591368B CN201511031643.3A CN201511031643A CN105591368B CN 105591368 B CN105591368 B CN 105591368B CN 201511031643 A CN201511031643 A CN 201511031643A CN 105591368 B CN105591368 B CN 105591368B
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000002474 experimental method Methods 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 238000001595 flow curve Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/006—Calibration or setting of parameters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Design And Manufacture Of Integrated Circuits (AREA)
Abstract
The invention provides a method and a device for revising working parameters of a fuse, wherein the method comprises the following steps: a short-circuit current value obtaining step, namely obtaining short-circuit current values under different voltage cut-in angles; obtaining a diode damage time-short circuit current curve to obtain damage time-short circuit current curves at different temperatures; a step of obtaining a fuse fusing time-short circuit current curve to obtain a fusing time-short circuit current curve; the method comprises the following steps of performing a fuse short-circuit protection experiment, realizing different short-circuit current values by changing a voltage cut-in angle, and detecting the damage time of a diode and the fusing time of a fuse under different short-circuit current values and different temperatures; and correcting a damage time-short circuit current curve of the diode at different temperatures and a fusing time-short circuit current curve of the fuse according to experimental data. Therefore, the accurate type selection of the fuse can be realized, and the cost of the fuse can be reduced to a certain extent.
Description
Technical field
The present invention relates to it is a kind of protect power circuit fuse running parameter revision method and device, more particularly to one
Kind is used for the revision method and device of the fuse running parameter of wind-powered electricity generation field converter diodes protection.
Background technology
In power circuit, fuse plays an important role as the protection element of short trouble.The peace of power circuit
Row for the national games is heavily dependent on the selection of fuse, so before suitably selection fuse is circuit system safe operation
Carry.The selection of existing fuse, fixed current, the I of fixed temperature provided according only to diode databook2T, to select
Fuse.The problem of causing fuse protection allowance excessive or suitable fuse can not be selected.
The content of the invention
The invention provides a kind of revision method and device of fuse running parameter, is applicable to carry out diode
The design of the fuse of protection, the design being particularly suitable for use in the fuse that IGBT fly-wheel diodes are protected in current transformer.
The characteristic of diode and fuse under different electric currents, different temperatures is calculated by analyzing, optimizes the design method of fuse, it is real
Now more accurately fuse type selecting.
For achieving the above object, embodiments of the invention provide a kind of revision method of fuse running parameter, institute
State fuse and be used for protection diode, it is characterised in that including：Short-circuit current value acquisition step, obtain different voltage entrance angles
Under different short-circuit current values；M- short circuit current curve acquisition step when diode damages, obtains diode at different temperatures
Damage when m- short circuit current curve；M- short circuit current curve acquisition step, obtains the fusing of fuse during fuse blows
When m- short circuit current curve；Experimental procedure, the experiment of fuse short-circuit protection is carried out, is realized by changing voltage entrance angle
The different short-circuit current values obtained in the short-circuit current value acquisition step, and detect the difference of diode at different temperatures
The fusing time of fuse when damaging time and different short-circuit current values during short-circuit current value；And amendment step, according to institute
M- short circuit current when stating diode damage described in short-circuit current value, damage time and fusing time amendment that experimental procedure obtains
M- short circuit current curve and the fusing during diode obtained in curve acquisition step damage at different temperatures
Fusing time-short circuit current curve of the fuse obtained in device fusing time-short circuit current curve acquisition step.
Preferably, in the short-circuit current value acquisition step, according to the parameter of circuit system, theoretical calculation or imitative is passed through
Genuine method, obtain the short-circuit current value under different voltage entrance angles；And/or the m- short circuit when the diode damages
In current curve acquisition step, calculated to obtain the damage of diode at different temperatures according to the data of the databook of diode
When m- short circuit current curve.
Preferably, the data of the databook of the diode include I2T data, thermal resistance-power curve of diode and
Diode current flow current -voltage curve.
Preferably, in the fuse blows in m- short circuit current curve acquisition step, according to the data hand of fuse
The data of volume are fitted to obtain fusing time-short circuit current curve of fuse；In the experimental procedure, by theoretical calculation or
The method of emulation, change the voltage entrance angle to realize the different short circuit electricity obtained in the short-circuit current value acquisition step
Flow valuve；And/or in the amendment step, the short-circuit current value that is obtained according to the experimental procedure, damage time and molten
During the damage at different temperatures of diode described in disconnected time match during the fusing of m- short circuit current curve and the fuse
M- short circuit current curve, described two obtained when thus correcting the diode damage in m- short circuit current curve acquisition step
M- short circuit current curve and m- short circuit current curve takes during fuse blows during pole pipe damage at different temperatures
Obtain fusing time-short circuit current curve of the fuse obtained in step.
Preferably, the fuse is used to protect the diode in wind-force generating converter.
Embodiments of the invention also provide a kind of revision device of fuse running parameter, and the fuse is used to protect two
Pole pipe, it is characterised in that including：Short-circuit current value obtains module, for obtaining the difference short circuit electricity under different voltage entrance angles
Flow valuve；M- short circuit current curve obtains module when diode damages, during for obtaining the damage of diode at different temperatures
M- short circuit current curve；M- short circuit current curve obtains module during fuse blows, for obtain the fusing time of fuse-
Short circuit current curve；Experiment module, for carrying out the experiment of fuse short-circuit protection, by changing voltage entrance angle to realize
State short-circuit current value and obtain different short-circuit current values obtained by module, and detect diode at different temperatures different short
The fusing time of fuse when damaging time and different short-circuit current values during the current value of road；And correcting module, for basis
M- short circuit electricity during diode damage described in short-circuit current value, damage time and the fusing time amendment that the experiment module obtains
M- short circuit current curve and described molten when flow curve obtains the diode damage at different temperatures obtained by module
Fusing time-short circuit current curve of fuse obtained by disconnected device fusing time-short circuit current curve acquirement module.
Preferably, the short-circuit current value obtains module, according to the parameter of circuit system, passes through theoretical calculation or emulation
Method, obtain the short-circuit current value under different voltage entrance angles；And/or m- short circuit current is bent during the diode damage
Line obtains module, m- short when calculating to obtain the damage of diode at different temperatures according to the data of the databook of diode
Road current curve.
Preferably, the data of the databook of the diode include I2T data, thermal resistance-power curve of diode and
Diode current flow current -voltage curve.
Preferably, m- short circuit current curve obtains module during the fuse blows, according to the databook of fuse
Data are fitted to obtain fusing time-short circuit current curve of fuse；The experiment module, pass through theoretical calculation or the side of emulation
Method, change the voltage entrance angle to realize the different short-circuit current values obtained by the short-circuit current value acquirement module；And
And/or person, the correcting module, the short-circuit current value obtained according to the experiment module, damage time and fusing time fitting
The fusing time of m- short circuit current curve and the fuse-short circuit current is bent during diode damage at different temperatures
Line, the diode during diode damage obtained by m- short circuit current curve acquirement module is thus corrected in not equality of temperature
M- short circuit current curve and during the fuse blows obtained by m- short circuit current curve acquirement module during the lower damage of degree
The fuse fusing time-short circuit current curve.
Preferably, the fuse is used to protect the diode in wind-force generating converter.
The revision method and device of the fuse running parameter provided according to embodiments of the present invention, it may be determined that fuse energy
The current range and diode of enough protection diodes being capable of protected operating temperatures.By reasonably designing, that is, set two
The operating temperature and the suitable fuse of selection of pole pipe, it is possible to achieve the accurate type selecting of fuse, the choosing of fuse can be increased
Type scope, the cost of fuse can also be reduced to a certain extent.
Brief description of the drawings
Fig. 1 is the block diagram for the circuit system that fuse is applied to.
Fig. 2 is the circuit diagram for the wind-power electricity generation NPC three-level current transformers that fuse is applied to.
Fig. 3 is that fuse is applied in wind-power electricity generation NPC three-level current transformers, and the short circuit current circulation of direct-current short circuit occurs
The schematic diagram in path.
Fig. 4 is that fuse is applied in wind-power electricity generation NPC three-level current transformers, and the short circuit electricity of single-phase semi-bridge arm short circuit occurs
Flow the schematic diagram of circulation path.
Fig. 5 is that fuse is applied in wind-power electricity generation NPC three-level current transformers, and after direct-current short circuit occurs, three-phase shortcircuit exists
The short circuit current a phase waveforms of different voltage entrance angles.
Fusing time-short circuit of m- short circuit current curve and fuse when Fig. 6 is the damage of diode at different temperatures
Current curve.
M- short circuit current curve and molten when Fig. 7 is the damage of the diode obtained according to experimental data at different temperatures
Fusing time-short circuit current fair curve of disconnected device.
Fig. 8 is the schematic flow sheet of one embodiment of the revision method of the fuse running parameter of the present invention.
Fig. 9 is the structural representation of one embodiment of the revision device of the fuse running parameter of the present invention.
Drawing reference numeral explanation：
1- power networks；2- on-load switches；3- wave filters；4- fuses；5- power circuits；6- is loaded；101- three phase networks；
102- transformers；103- on-load switches；104- filter capacitors；105- filter inductances；106- fuses；107- current transformers；108-
Load；109- fly-wheel diodes；110- fly-wheel diodes；A-a phase bridge arms；B-b phase bridge arms；C-c phase bridge arms.
Embodiment
Before the revision method and device of the fuse running parameter of the present invention is described, introduce first molten
The circuit system and operation principle of disconnected device application.
Fig. 1 is the block diagram for the circuit system that fuse is applied to.Including：Power network 1, the on-load switch 2 being connected with power network 1,
The wave filter 3 being connected with on-load switch 2, the fuse 4 being connected with wave filter 3, the power circuit 5 being connected with fuse 4, with work(
The connected load 6 of rate circuit 5.Wherein, fuse 4 for the diode in power circuit 5, particularly power circuit 5 (in figure not
Show) play a protective role.
Fig. 1 each several part is embodied, Fig. 2 is the circuit for the wind-power electricity generation NPC three-level current transformers that fuse is applied to
Figure.When on wind-force generating converter in use, circuit system form as shown in Fig. 2 including：(35kV's) three phase network 101,
The transformer 102 being connected with three phase network 101, the on-load switch 103 being connected with transformer 102, it is connected with on-load switch 103
Filter capacitor 104, the filter inductance 105 being connected with on-load switch 103, the fuse for the net side being connected with filter inductance 105
106, the current transformer 107 for the net side being connected with the fuse 106 of net side, the load 108 being connected with the current transformer 107 of net side, net
The pole of afterflow two in the fly-wheel diode 109 and down tube IGBT in the upper tube IGBT of upper and lower bridge arm is formed in the current transformer 107 of side
Pipe 110.
Principle for the fuse protection diode of the net side of wind-force generating converter is as follows：1st, when DC side generation is short
Lu Hou, the IGBT in the current transformer 107 of net side driving block, fly-wheel diode still can give short circuit current to provide path.Stream
Path is as shown in figure 3, a, b, c in Fig. 3 represent three-phase bridge arm.By taking the short circuit paths of two-phase bridge arm therein as an example, in Fig. 3
Solid-line paths represent short circuit current from a phases bridge arm flow into, b phases bridge arm outflow.Specifically, short circuit current flows into a phase bridge arms,
By two diodes 110 and 109 of bridge arm in a phases, then by direct-current short circuit path, then two by bridge arm under b phases
Diode, finally flow out b phase bridge arms.Dashed path in Fig. 3 represents that short circuit current flows into from b phases bridge arm, a phases bridge arm flows out.
Specifically, short circuit current flows into b phase bridge arms, by two diodes of bridge arm in b phases, then by direct-current short circuit path,
Pass through two diodes of bridge arm under a phases again, finally flow out a phase bridge arms.That is, short circuit current passes through upper bridge arm diode
Circulated with lower bridge arm diode.Fuse 106 rapid fusing, cuts off short circuit paths, so as to protect two under short circuit current
Pole pipe.2nd, when the drive of the IGBT in bridge arm generation short circuit (situation of lower bridge arm is similar) on a phase bridge arm, the current transformer 107 of net side
Dynamic block, the diode of upper bridge arm still can provide path to short circuit current.Circulation path is as shown in figure 4, a, b, c in Fig. 4
Also illustrate that three-phase bridge arm.By taking the short circuit paths of two-phase bridge arm as an example, the solid-line paths in Fig. 4 represent short circuit current from b phase bridge arms
Flow into, the outflow of a phases bridge arm.Specifically, short circuit current flows into b phase bridge arms, by two diodes of bridge arm in b phases, then
By the short circuit paths of bridge arm in a phases, a phase bridge arms are finally flowed out.That is, short circuit current is carried out by upper bridge arm diode
Circulation.Fuse 106 rapid fusing, cuts off short circuit paths, so as to protection diode under short circuit current.
The embodiment of the revision method and device of the fuse running parameter of the present invention is carried out below in conjunction with accompanying drawing detailed
Description.
Embodiment one
In wind-force generating converter, fuse is used for the diode for protecting higher value, and its design selection is in current transformer
There is critical role in design.The revision method of the fuse running parameter of the present invention is carried out to the process of the type selecting of fuse
" becoming more meticulous ", the actual operation parameters such as temperature are taken into full account, by analyzing diode under the different electric currents of calculating, different temperatures and melting
The characteristic of disconnected device, the design method of fuse is optimized, realize more accurately fuse type selecting, only root when avoiding traditional type selecting
According to the drawbacks of error is larger existing for databook.
Fig. 8 is the schematic flow sheet of one embodiment of the revision method of the fuse running parameter of the present invention.Such as Fig. 8 institutes
Show, the revision method of the fuse running parameter of the present embodiment can specifically include：
S201：Short-circuit current value acquisition step, according to systematic parameters such as line voltage, line resistances, pass through theoretical calculation
Or the method for emulation, obtain change of the system short-circuit electric current in different short-circuit conditions.Such as Fig. 5 shows that generation DC side is short
Lu Hou, three-phase shortcircuit different voltage entrance angles short circuit current a phase waveforms, it is hereby achieved that system occur short circuit after most
Big short circuit current, and short circuit current is changed with the change of voltage entrance angle as can be seen from Figure 5, therefore can obtain
Short-circuit current value under different voltage entrance angles.
S202：M- short circuit current curve acquisition step when diode damages, according to the databook of diode, obtains two
The I of pole pipe2T data, but this data is generally only the I under fixed temperature, fixed short circuit current2T data.Utilize diode
Thermal resistance-power curve, conducting voltage-current curve, approximately the damage of diode at different temperatures is obtained by calculating
When m- short circuit current curve.
S203：M- short circuit current curve acquisition step, according to the databook of fuse, is fitted during fuse blows
To fusing time-short circuit current curve of fuse.
When Fig. 6 shows damage of the diode at 50 DEG C, 95 DEG C, 125 DEG C of different temperatures m- short circuit current curve and
The fusing time of fuse-short circuit current curve.M- short circuit electricity during by comparing the damage of diode in figure at different temperatures
The fusing time of flow curve and fuse-short circuit current curve, fuse in theory can be obtained and be capable of protection diode
Scope.
S204：Experimental procedure, the theory analysis more than, the experiment of fuse short-circuit protection is designed, herein, is not limited
The concrete structure of experimental circuit, as long as protection of the fuse for diode can be realized.Pass through theoretical calculation or emulation
Method carry out the voltage entrance angle of contrived experiment circuit to reach expected short-circuit current value, the short-circuit current value is in S201
Short-circuit current value under obtained different voltage entrance angles.Different temperatures is obtained by pre- thermal diode, and then detected not
Damage time of diode and during different short-circuit current values during the fusing of fuse during different short-circuit current values under synthermal
Between, that is, obtained diode under different temperatures by protection feature.
S205：Step is corrected, according to S204 experimental data, is fitted m- short during the damage of diode at different temperatures
The fusing time of road current curve and fuse-short circuit current curve, so that the damage of the diode of correction map 6 at different temperatures
Bad when m- short circuit current curve and fuse fusing time-short circuit current curve.Revised curve is as shown in Figure 7.
It can finally determine that fuse is capable of the current range and diode of protection diode according to revised curve
Being capable of protected operating temperature.Like this, by reasonably designing, that is, the operating temperature and selection that set diode are closed
Suitable fuse, it is possible to achieve the effect of fuse protection diode after short circuit occurs for system.Using the present invention method,
When selecting fuse, according to the actual work temperature of diode, the type selecting scope of fuse can be increased, can also be one
Determine the cost of reduction fuse in degree.
Embodiment two
Fig. 9 is the structural representation of one embodiment of the revision device of the fuse running parameter of the present invention.Such as Fig. 9 institutes
Show, the revision device of the fuse running parameter of the present embodiment can perform the fuse running parameter of embodiment as shown in Figure 8
Revision method.
Specifically, the revision device of the fuse running parameter of the present embodiment can include：Short-circuit current value obtains module
301, for obtaining the different short-circuit current values under different voltage entrance angles；Diode m- short circuit current curve acquirement when damaging
Module 302, m- short circuit current curve during for obtaining the damage of diode at different temperatures；M- short circuit during fuse blows
Current curve obtains module 303, for obtaining fusing time-short circuit current curve of fuse；Experiment module 304, be used for into
The experiment of row fuse short-circuit protection, by change voltage entrance angle realize short-circuit current value obtain module 301 obtained by
Different short-circuit current values, and damage time when detecting the different short-circuit current values of diode at different temperatures with it is difference short
The fusing time of fuse during the current value of road；And correcting module 305, for the data correction obtained according to experiment module 304
M- short circuit current curve obtains m- short during the damage of diode obtained by module 302 at different temperatures when diode damages
The fusing time of fuse when road current curve and fuse blows obtained by m- short circuit current curve acquirement module 303-
Short circuit current curve.
Also, short-circuit current value obtains module 301, according to the parameter of circuit system, passes through theoretical calculation or the side of emulation
Method, obtain the different short-circuit current values under different voltage entrance angles.Diode m- short circuit current curve acquirement module when damaging
302, m- short circuit current is bent when calculating to obtain the damage of diode at different temperatures according to the data of the databook of diode
Line.The data of the databook include I2T data, thermal resistance-power curve of diode and diode current flow current-voltage are bent
Line.M- short circuit current curve obtains module 303 during fuse blows, is fitted to obtain according to the data of the databook of fuse
The fusing time of fuse-short circuit current curve.Experiment module 304, by theoretical calculation or the method for emulation, change the electricity
Entrance angle is pressed to realize the different short-circuit current values obtained by short-circuit current value acquirement module 301.Correcting module 305, according to
M- short circuit current curve and fuse when the data that experiment module 304 obtains are fitted the damage of diode at different temperatures
Fusing time-short circuit current curve, obtained by m- short circuit current curve obtains module 302 when thus correcting diode damage
Diode damage at different temperatures when m- short circuit current curve and m- short circuit current curve takes during fuse blows
Fuse obtained by module fusing time-short circuit current curve.
Specifically, each module realizes the detailed process of its function in the revision device of the fuse running parameter of the present embodiment
The associated description in embodiment of the method shown in Fig. 8 is may refer to, here is omitted.
The revision device of the fuse running parameter of the present invention has carried out " becoming more meticulous " to the process of the type selecting of fuse, fills
Divide and consider the actual operation parameters such as temperature, the characteristic of diode and fuse under different electric currents, different temperatures is calculated by analyzing,
More accurately fuse type selecting is realized, according only to the drawbacks of error is larger existing for databook when avoiding traditional type selecting.
Describe the preferred embodiments of the present invention above, but the spirit and scope of the present invention be not limited to it is disclosed herein
Particular content.Those skilled in the art can make more embodiments and application according to the teachings of the present invention, these realities
Apply mode and application would be within the spirit and scope of the present invention.The spirit and scope of the present invention are not limited by specific embodiment,
And it is defined by the claims.
Claims (10)
1. a kind of revision method of fuse running parameter, the fuse are used for protection diode, it is characterised in that including：
Short-circuit current value acquisition step, obtain the different short-circuit current values under different voltage entrance angles；
M- short circuit current curve acquisition step when diode damages, obtains m- short circuit during the damage of diode at different temperatures
Current curve；
M- short circuit current curve acquisition step during fuse blows, obtain fusing time-short circuit current curve of fuse；
Experimental procedure, the experiment of fuse short-circuit protection is carried out, the short-circuit current value is realized by changing voltage entrance angle
The different short-circuit current values obtained in acquisition step, and when detecting the different short-circuit current values of diode at different temperatures
The fusing time of fuse when damaging time and different short-circuit current values；And
Correct step, the short-circuit current value obtained according to the experimental procedure, the damage time and the fusing time
The damage of the diode obtained when correcting the diode damage in m- short circuit current curve acquisition step at different temperatures
Bad when, and obtains during the fuse blows described molten m- short circuit current curve in m- short circuit current curve acquisition step
Fusing time-short circuit current curve of disconnected device.
2. the revision method of fuse running parameter according to claim 1, it is characterised in that
In the short-circuit current value acquisition step, according to the parameter of circuit system, by theoretical calculation or the method for emulation, obtain
Different short-circuit current values under different voltage entrance angles；And/or
When the diode damages in m- short circuit current curve acquisition step, pushed away according to the data of the databook of diode
Calculation obtains m- short circuit current curve during the damage of diode at different temperatures.
3. the revision method of fuse running parameter according to claim 2, it is characterised in that
The data of the databook of the diode include I2T data, thermal resistance-power curve of diode and diode current flow electricity
Stream-voltage curve.
4. the revision method of the fuse running parameter according to any one of claim 1-3, it is characterised in that
In the fuse blows in m- short circuit current curve acquisition step, intended according to the data of the databook of fuse
Conjunction obtains fusing time-short circuit current curve of fuse；
In the experimental procedure, by theoretical calculation or the method for emulation, it is described short to realize to change the voltage entrance angle
The different short-circuit current values obtained in the current value acquisition step of road；And/or
In the amendment step, the short-circuit current value that is obtained according to the experimental procedure, damage time and described
The fusing of m- short circuit current curve and fuse when fusing time is fitted the damage of the diode at different temperatures
When m- short circuit current curve, obtained when thus correcting diode damage in m- short circuit current curve acquisition step described
M- short circuit current curve and m- short circuit current curve during the fuse blows during diode damage at different temperatures
The fusing time of the fuse obtained in acquisition step-short circuit current curve.
5. the revision method of fuse running parameter according to claim 4, it is characterised in that
The fuse is used to protect the diode in wind-force generating converter.
6. a kind of revision device of fuse running parameter, the fuse are used for protection diode, it is characterised in that including：
Short-circuit current value obtains module, for obtaining the different short-circuit current values under different voltage entrance angles；
M- short circuit current curve obtains module when diode damages, m- during for obtaining the damage of diode at different temperatures
Short circuit current curve；
M- short circuit current curve obtains module during fuse blows, and fusing time-short circuit current for obtaining fuse is bent
Line；
Experiment module, for carrying out the experiment of fuse short-circuit protection, the short circuit electricity is realized by changing voltage entrance angle
Flow valuve obtains the different short-circuit current values obtained by module, and detects the different short-circuit current values of diode at different temperatures
When the damage time and during different short-circuit current values fuse fusing time；And
Correcting module, for the short-circuit current value, the damage time and the fusing obtained according to the experiment module
The diode of the diode described in time complexity curve when damaging obtained by m- short circuit current curve acquirement module is at different temperatures
Damage when m- short circuit current curve and during the fuse blows m- short circuit current curve obtain it is molten obtained by module
Fusing time-short circuit current curve of disconnected device.
7. the revision device of fuse running parameter according to claim 6, it is characterised in that
The short-circuit current value obtains module, according to the parameter of circuit system, by theoretical calculation or the method for emulation, obtains not
With the different short-circuit current values under voltage entrance angle；And/or
M- short circuit current curve obtains module during the diode damage, is calculated according to the data of the databook of diode
To m- short circuit current curve during diode damage at different temperatures.
8. the revision device of fuse running parameter according to claim 7, it is characterised in that
The data of the databook of the diode include I2T data, thermal resistance-power curve of diode and diode current flow electricity
Stream-voltage curve.
9. the revision device of the fuse running parameter according to any one of claim 6-8, it is characterised in that
M- short circuit current curve obtains module during the fuse blows, is fitted according to the data of the databook of fuse
To fusing time-short circuit current curve of fuse；
The experiment module, by theoretical calculation or the method for emulation, change the voltage entrance angle to realize the short circuit electricity
Flow valuve obtains the different short-circuit current values obtained by module；And/or
The correcting module, the short-circuit current value obtained according to the experiment module, the damage time and the fusing
During the damage at different temperatures of diode described in time match during the fusing of m- short circuit current curve and the fuse
M- short circuit current curve, m- short circuit current curve obtains described two obtained by module when thus correcting the diode damage
M- short circuit current curve and m- short circuit current curve takes during fuse blows during pole pipe damage at different temperatures
The fuse obtained by module fusing time-short circuit current curve.
10. the revision device of fuse running parameter according to claim 9, it is characterised in that
The fuse is used to protect the diode in wind-force generating converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031643.3A CN105591368B (en) | 2015-12-31 | 2015-12-31 | Method and device for revising working parameters of fuse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031643.3A CN105591368B (en) | 2015-12-31 | 2015-12-31 | Method and device for revising working parameters of fuse |
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| CN105591368A CN105591368A (en) | 2016-05-18 |
| CN105591368B true CN105591368B (en) | 2018-03-06 |
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| CN109901011B (en) * | 2019-02-19 | 2024-08-06 | 中国电力科学研究院有限公司 | Method and system for determining capacity reduction coefficient of fuse |
| US10756201B1 (en) * | 2019-02-20 | 2020-08-25 | John Jairo Pacheco Peña | Process of making a short-circuited diode that prevents electrocution |
| CN113820633B (en) * | 2021-09-15 | 2024-02-27 | 上海舒盈科技股份有限公司 | Fuse specification determination method, system, terminal and medium for fusing overvoltage protection device |
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| CN1232173A (en) * | 1998-03-31 | 1999-10-20 | 三洋电机株式会社 | Method for correction of measured value of measuring mechanism |
| CN101776720A (en) * | 2010-01-04 | 2010-07-14 | 苏州热工研究院有限公司 | Multiple-factor detection system for aging condition of fuse and assessment method for aging condition |
| CN202421365U (en) * | 2011-12-14 | 2012-09-05 | 中国广东核电集团有限公司 | Reliability detecting device of miniature fuse used for nuclear power station |
| CN104051804A (en) * | 2013-03-15 | 2014-09-17 | 罗伯特·博世有限公司 | Method and device for increasing safety when using battery modules |
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| US7691731B2 (en) * | 2006-03-15 | 2010-04-06 | University Of Central Florida Research Foundation, Inc. | Deposition of crystalline layers on polymer substrates using nanoparticles and laser nanoforming |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1232173A (en) * | 1998-03-31 | 1999-10-20 | 三洋电机株式会社 | Method for correction of measured value of measuring mechanism |
| CN101776720A (en) * | 2010-01-04 | 2010-07-14 | 苏州热工研究院有限公司 | Multiple-factor detection system for aging condition of fuse and assessment method for aging condition |
| CN202421365U (en) * | 2011-12-14 | 2012-09-05 | 中国广东核电集团有限公司 | Reliability detecting device of miniature fuse used for nuclear power station |
| CN104051804A (en) * | 2013-03-15 | 2014-09-17 | 罗伯特·博世有限公司 | Method and device for increasing safety when using battery modules |
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