CN107607803A - Converter system failure logging method, apparatus and system - Google Patents
Converter system failure logging method, apparatus and system Download PDFInfo
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- CN107607803A CN107607803A CN201610539402.8A CN201610539402A CN107607803A CN 107607803 A CN107607803 A CN 107607803A CN 201610539402 A CN201610539402 A CN 201610539402A CN 107607803 A CN107607803 A CN 107607803A
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Abstract
The present invention, which provides a kind of converter system failure logging method, apparatus and system, wherein method, to be included：The state of pilot switch component, while store the converter system status information of acquisition；If switching member breaks down, fault time point is recorded, and generate failure message；According to fault time point, the converter system status information in preset time period before and after fault time point is obtained；According to the converter system status information in preset time period before and after fault time point, failure message and fault time point, fault data is generated；Store fault data.The converter system failure logging stored using aforesaid way, not only reduce information storage, and can obtains rationally effective information, and when making subsequently to carry out fault analysis and protection, data operation treating capacity is reduced significantly, further meets error protection real-time demand.
Description
Technical field
The present invention relates to converter system field, more particularly to a kind of converter system failure logging method, apparatus and it is
System.
Background technology
Converter system is made up of high-power semiconductor switch component and set of functional part, realizes electric energy in direct current
Conversion between electricity and alternating current, it is the core of power electronics industry.The failure of converter system, is concentrated on
Three major types：Electric fault (as current over pulse, voltage are too small etc.), the hot stall caused by electrically and because electric
Or the switching member failure of thermal initiation.
At present, the passive type defence control based on functional module turns into the universal means of reply converter system failure,
Its specific practice is：The functional module of predefined converter system normal operating conditions is set, to the unsteady flow system of collection
System status information implements to compare and fault verification, and then trigger protection action is with the defence of complete paired fault and unsteady flow
System it is controllable.Fig. 1 is a kind of typical converter system framework in the prior art, if being controlled by functional module
Dry switching member realizes the conversion between three-phase alternating current and direct current.The converter system state of functional module collection
Information corresponds to the characterize data of all kinds of failures, including the voltage x current of each road electrical port, converter system key portion
The monitoring temperature of position and the status signal of switching member, data above feed back to top level control system through functional module
Form the closed-loop control and top layer protection to converter system.
In multi-stage protection mechanism, functional module, which often requires that, carries defencive function, thus needs to each of acquisition
Class converter system status information carries out calculation process and protection act output.By under the pressure of data operation treating capacity greatly and
Bilateral demand, prior art rest on the real-time guard aspect to converter system to protection act more in real time, and right
The extraction of fault data, record still lack research and application with analysis, and especially all kinds of states of converter system are believed
The integration of breath and its potential causal mining analysis are inadequate, and the control and error protection for causing converter system are arranged
It is passive to apply, it is more difficult to realizes intelligent.
The content of the invention
The present invention provides a kind of converter system failure logging method, apparatus and system, to solve in the prior art
The low technical problem of extraction and record efficiency to converter system fault data.
First aspect present invention provides a kind of converter system failure logging method, including：
The state of pilot switch component, while store the converter system status information of acquisition；
If switching member breaks down, fault time point is recorded, and generate failure message；
According to fault time point, the converter system status information in preset time period before and after fault time point is obtained；
According to the converter system state in preset time period before and after fault time point, failure message and fault time point
Information, generate fault data；
Store fault data.
Further, preset time period includes first time period and second time period, wherein, first time period is
First before fault time point using fault time point as end time point presets sampling period, the second time
Section is that second after fault time point using fault time point as start time point presets the sampling period.
Further, the first default sampling period and the second default sampling period are unequal.
Second aspect of the present invention provides a kind of converter system failure recording device, including：
Switching member monitoring module, the state for pilot switch component；
Converter system state-information-storage module, for storing the converter system status information obtained；
Failure message generation module, broken down for switching member, record fault time point, and generate failure
Message；
Special time period converter system state information acquisition module, for according to fault time point, when obtaining failure
Between put before and after converter system status information in preset time period；
Fault data generation module, for being preset according to before and after fault time point, failure message and fault time point
Converter system status information in period, generate fault data；
Fault data memory module, for storing fault data.
Further, preset time period includes first time period and second time period, wherein, first time period is
First default sampling period before using fault time point as end time point, second time period are with fault time point
Rear second for start time point presets the sampling period.
Further, the first default sampling period and the second default sampling period are unequal.
Third aspect present invention provides a kind of converter system mistake record system, including：Analog-digital converter, FPGA
Module, switching member state self-diagnosis unit switches and memory, wherein, FPGA module respectively with analog-digital converter,
Switching member state self-diagnosis unit switches connect with memory；
Analog-digital converter is used for the signal that the converter system status information of acquisition is converted to FPGA module identification；
Switching member state self-diagnosis unit switches are used for the fault-signal mark for obtaining switching member.
Further, FPGA module includes random access memory.
Further, memory is nonvolatile memory.
Converter system failure logging method, apparatus and system provided by the invention, by the real-time of switching member
Monitoring obtains the fault time of switching member point, so as to obtain the change before and after fault time point in preset time period
Streaming system status information, then according to preset time period before and after fault time point, failure message and fault time point
Interior converter system status information generation fault data, finally stores fault data, so as to subsequently to converter system
Failure occurs the frequency, failure pests occurrence rule, fault type tendency etc. and carries out fault statistics analysis, using above-mentioned side
The converter system failure logging of formula storage, not only reduce information storage, and can obtains rationally effective information,
When making subsequently to carry out fault analysis and protection, data operation treating capacity is reduced significantly, further meets failure guarantor
Protect real-time demand.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 is typical converter system framework in the prior art；
Fig. 2 is the schematic flow sheet for the converter system failure logging method that the embodiment of the present invention one provides；
Fig. 3 is the structural representation for the converter system failure recording device that the embodiment of the present invention two provides；
Fig. 4 is the structural representation for the converter system mistake record system that the embodiment of the present invention three provides.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to the ratio of reality.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one
Fig. 2 is the schematic flow sheet for the converter system failure logging method that the embodiment of the present invention one provides；Such as Fig. 2
Shown, the present embodiment provides a kind of converter system failure logging method, including：
Step 101, the state of pilot switch component, while store the converter system status information of acquisition.
Specifically, switching member also refers to semiconductor component, it is semiconductor devices and the group made of semiconductor devices
The general designation of part device, it is often frequently open-minded by it in Power Electronic Circuit because the component possesses switching characteristic
And turn off to realize the conversion of electric energy (such as realizing the conversion between alternating current and direct current), therefore be defined as
Switching member.Switching member has multiple, and the state of each switching member includes normal condition and malfunction, becomes
Streaming system status information corresponds to the characterize data of all kinds of failures, including the voltage x current of each road electrical port, unsteady flow
The monitoring temperature at system core position and the status signal of switching member.
Step 102, if switching member breaks down, fault time point is recorded, and generate failure message.
For the converter system with multiple switch component, as long as thering is a switching member to break down, all
Need to record fault time point, that is, when monitoring time point when switching member breaks down, and recording the failure
Between point, while fault in production message, the failure message have ID codings, can clearly refer to fault attribute,
The switch structure of classification (electric fault, hot stall and the class of switching member failure three) and guilty culprit including failure
Part position.Illustrated by taking 3 switching members as an example, it is common that failure message ID coded formats include ID0~ID7
8 data bit are counted, wherein ID0 is converter system total failare Status Flag, and numerical value ' 0 ' represents converter system
Overall normal, numerical value ' 1 ' represents converter system and is in malfunction and at least a kind of failure be present, and ID1 is electricity
Reflector is flowed, ID2 is voltage failure mark, and ID3 is hot stall mark, and ID4~ID6 is respectively to switch structure
The Reflector of 1~switching member of part 3, ID7 are extendible reserved place, and each fault flag is by logical number
Value ' 0 ' or ' 1 ' represents that ' 0 ' represents normal condition, and ' 1 ' represents malfunction.Gone out with switching member 1
Exemplified by existing over current fault, the failure message now generated is sequence ' 11001000 '.
Step 103, according to fault time point, the converter system in preset time period before and after fault time point is obtained
Status information.
On the basis of fault time point, the converter system state letter before acquisition fault time point in special time period
Breath, and the converter system status information after fault time point in special time period, preset time period can be according to reality
Situation is configured, the converter system status information obtained by such a mode, more with specific aim, and greatly
The big treating capacity for reducing data.The mode of record fault time point can use the converter system status information sampling period
Number represents.
Step 104, according to the change in preset time period before and after fault time point, failure message and fault time point
Streaming system status information, generate fault data.
In this step, the unsteady flow before and after fault time point, failure message and fault time point in preset time period
System status information is integrated into a fault data, according to fault data, can know specifically at a time
Some switching member position generates the converter system operation before and after certain type of failure and fault time point
Status information.
Further, preset time period includes first time period and second time period, wherein, first time period is
First before fault time point using fault time point as end time point presets sampling period, the second time
Section is that second after fault time point using fault time point as start time point presets the sampling period.First
Default sampling period and the second sampling period are unequal.
Specifically, the first default sampling period can be configured with the second default sampling period according to actual conditions,
Such as first time period is 5 sampling periods before using fault time point as the fault time point of end time point,
Second time period be using fault time point as 5 sampling periods after the fault time point of start time point, when
So, the first default sampling period can also be unequal with the second sampling period.
Step 105, fault data is stored.
By fault data storage into memory, so as to which the frequency subsequently occurs to converter system failure, failure occurs
Rule, fault type tendency etc. carry out fault statistics analysis.
The converter system failure logging method that the present embodiment provides, by being obtained to the real-time monitoring of switching member
The fault time point of switching member, so as to obtain the converter system state before and after fault time point in preset time period
Information, then according to the unsteady flow system in preset time period before and after fault time point, failure message and fault time point
Status information of uniting generation fault data, finally stores fault data, so as to which frequency subsequently occurs to converter system failure
Secondary, failure pests occurrence rule, fault type tendency etc. carry out fault statistics analysis, the change stored using aforesaid way
Streaming system failure logging, not only reduces information storage, and and can obtains rationally effective information, makes subsequently to carry out
During fault analysis and protection, data operation treating capacity is reduced significantly, and further meeting error protection real-time needs
Ask.
Embodiment two
The present embodiment is device embodiment, for performing the method in above-described embodiment one.
Fig. 3 is the structural representation for the converter system failure recording device that the embodiment of the present invention two provides；Such as Fig. 3
Shown, the present embodiment provides a kind of converter system failure recording device, including：Switching member monitoring module,
Converter system state-information-storage module, failure message generation module, special time period converter system status information
Acquisition module, fault data generation module and fault data memory module.
Wherein, switching member monitoring module, the state for pilot switch component.
Converter system state-information-storage module, for storing the converter system status information obtained.
Failure message generation module, broken down for switching member, record fault time point, and generate failure
Message.
Special time period converter system state information acquisition module, for according to fault time point, when obtaining failure
Between put before and after converter system status information in preset time period.
Fault data generation module, for being preset according to before and after fault time point, failure message and fault time point
Converter system status information in period, generate fault data.
Further, preset time period includes first time period and second time period, wherein, first time period is
First default sampling period before using fault time point as end time point, second time period are with fault time point
Rear second for start time point presets the sampling period.First default sampling period preset the sampling period not with second
It is equal.
Fault data memory module, for storing fault data.
The converter system failure recording device that the present embodiment provides, by being obtained to the real-time monitoring of switching member
The fault time point of switching member, so as to obtain the converter system state before and after fault time point in preset time period
Information, then according to the unsteady flow system in preset time period before and after fault time point, failure message and fault time point
Status information of uniting generation fault data, finally stores fault data, so as to which frequency subsequently occurs to converter system failure
Secondary, failure pests occurrence rule, fault type tendency etc. carry out fault statistics analysis, the change stored using aforesaid way
Streaming system failure logging, not only reduces information storage, and and can obtains rationally effective information, makes subsequently to carry out
During fault analysis and protection, data operation treating capacity is reduced significantly, and further meeting error protection real-time needs
Ask.
The present embodiment be with one corresponding device embodiment of embodiment of the method, for details, reference can be made to retouching in embodiment one
State, will not be repeated here.
Embodiment three
The present embodiment is device embodiment, for performing the method in above-described embodiment one.
Fig. 4 is the structural representation for the converter system mistake record system that the embodiment of the present invention three provides；Such as Fig. 4
Shown, the present embodiment provides a kind of converter system mistake record system, including：Analog-digital converter 11, FPGA
Module 12, switching member state self-diagnosis unit switches 13 and memory 14, wherein, FPGA module 12 respectively with
Analog-digital converter 11, switching member state self-diagnosis unit switches 13 and memory 14 connect；Analog-digital converter 11
For the converter system status information of acquisition to be converted into the signal that FPGA module 12 identifies；Switching member shape
State self-diagnosis unit switches 13 are used for the fault-signal mark for obtaining switching member.
Specifically, analog-digital converter 11 is used to obtain each road converter system status information, and it is converted into existing
The recognizable signal of field programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) module,
Then FPGA module 12 stores converter system status information to the random access memory of FPGA module 12
In 121, switching member state self-diagnosis unit switches 13 are connected with each switching member 3, for obtaining switching member
Fault-signal mark, once monitoring that switching member breaks down, fault time is recorded by FPGA module 12
Point, recording the mode of fault time point can obtain from the clock signal inside FPGA module 12, Huo Zheyong
Converter system status information sampling period number represents, first default adopts before the latch fault time point of FPGA module 12
Converter system status information in the sample cycle, and it is all to continue the second default sampling after obtaining latch fault time point
Converter system status information in phase, while failure message is generated, then by FPGA module 12 according to failure
Converter system status information before and after time point, failure message and fault time point in preset time period, generation event
Hinder data, finally stored fault data into memory 14 by FPGA module 12, further, storage
Device 14 is nonvolatile memory 14.Host computer 2 can pass through R232 bus online access FPGA modules
Converter system status information in 12, or the offline fault data transferred in memory 14.
The real-time that the converter system mistake record system that the present embodiment provides gives full play to FPGA module 12 is excellent
Gesture, by data sampling, calculation process and fault verification Parallel segmentation in analog-digital converter 11 and switching member shape
In state self-diagnosis unit switches 13, realize that the fault data directly triggered based on fault-signal mark is caught, to evade
FPGA module 12 in terms of Large Volume Data processing the defects of, make said system possess more space-times be used for therefore
The excavation for hindering data is integrated, thus possesses the characteristics of error protection real-time is good, troubleshooting is intelligent strong.This
Outside, analog-digital converter 11 and switching member state self-diagnosis unit switches 13 can carry out distributed channel data and adopt
Collection, it is easy to the flexible design for change of switching member expansion and converter system framework.The change stored using aforesaid way
Streaming system failure logging, not only reduces information storage, and and can obtains rationally effective information, makes subsequently to carry out
During fault analysis and protection, data operation treating capacity is reduced significantly, and further meeting error protection real-time needs
Ask.
The present embodiment be with one corresponding device embodiment of embodiment of the method, for details, reference can be made to retouching in embodiment one
State, will not be repeated here.
Although by reference to preferred embodiment, invention has been described, is not departing from the scope of the present invention
In the case of, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, only
Otherwise structural hazard be present, the every technical characteristic being previously mentioned in each embodiment can combine in any way
Come.The invention is not limited in specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical schemes.
Claims (9)
- A kind of 1. converter system failure logging method, it is characterised in that including：The state of pilot switch component, while store the converter system status information of acquisition；If switching member breaks down, fault time point is recorded, and generate failure message；According to fault time point, the converter system status information in preset time period before and after fault time point is obtained；According to the converter system state in preset time period before and after fault time point, failure message and fault time point Information, generate fault data；Store fault data.
- 2. converter system failure logging method according to claim 1, it is characterised in that preset time Section includes first time period and second time period, wherein, first time period is using fault time point as the end time First before fault time point of point is preset the sampling period, and second time period is using fault time point as starting Second after fault time point at time point presets the sampling period.
- 3. converter system failure logging method according to claim 2, it is characterised in that first is default Sampling period and the second default sampling period are unequal.
- A kind of 4. converter system failure recording device, it is characterised in that including：Switching member monitoring module, the state for pilot switch component；Converter system state-information-storage module, for storing the converter system status information obtained；Failure message generation module, broken down for switching member, record fault time point, and generate failure Message；Special time period converter system state information acquisition module, for according to fault time point, when obtaining failure Between put before and after converter system status information in preset time period；Fault data generation module, for being preset according to before and after fault time point, failure message and fault time point Converter system status information in period, generate fault data；Fault data memory module, for storing fault data.
- 5. converter system failure recording device according to claim 4, it is characterised in that preset time Section includes first time period and second time period, wherein, first time period is using fault time point as the end time Preceding first default sampling period of point, second time period are using fault time point as the rear second pre- of start time point If the sampling period.
- 6. converter system failure recording device according to claim 5, it is characterised in that first is default Sampling period and the second default sampling period are unequal.
- A kind of 7. converter system mistake record system, it is characterised in that including：Analog-digital converter, FPGA moulds Block, switching member state self-diagnosis unit switches and memory, wherein, FPGA module respectively with analog-digital converter, Switching member state self-diagnosis unit switches connect with memory；Analog-digital converter is used for the signal that the converter system status information of acquisition is converted to FPGA module identification；Switching member state self-diagnosis unit switches are used for the fault-signal mark for obtaining switching member.
- 8. converter system mistake record system according to claim 7, it is characterised in that FPGA module Including random access memory.
- 9. converter system mistake record system according to claim 7, it is characterised in that memory is Nonvolatile memory.
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| CN109257185A (en) * | 2018-11-21 | 2019-01-22 | 新华三技术有限公司 | A kind of network equipment, service card, logic device and notification information transmission method |
| CN109347685A (en) * | 2018-11-21 | 2019-02-15 | 新华三技术有限公司 | A kind of network equipment, logic device and notification information transmission method |
| CN110531646A (en) * | 2018-05-24 | 2019-12-03 | 株洲中车时代电气股份有限公司 | (PCC) power system failure collecting method and system based on FPGA |
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