CN109143142A - A kind of direct current transient state step source signal adaptive regulation method and device - Google Patents
A kind of direct current transient state step source signal adaptive regulation method and device Download PDFInfo
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- CN109143142A CN109143142A CN201810833670.XA CN201810833670A CN109143142A CN 109143142 A CN109143142 A CN 109143142A CN 201810833670 A CN201810833670 A CN 201810833670A CN 109143142 A CN109143142 A CN 109143142A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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Abstract
This application discloses a kind of direct current transient state step source signal adaptive regulation method and devices, by using the closed loop step way of output, pass through the direct current transient state step small voltage signal obtained after signal processing according to preset self-learning algorithm to be modified, when revised signal meets preset output condition, it is exported using the signal as echo signal, direct current transient state step signal is caused to distort regardless of whether changing there are the load of direct current transient state step signal source, the transient-wave when echo signal obtained after self study is corrected is all close to true fault, therefore it can adapt to the load characteristic of various principle direct current instrument transformers, existing direct current instrument transformer transient state step source is solved using the open loop power amplifier step way of output, the technical issues of being difficult to adapt to the load characteristic variation of various principle direct current instrument transformers.
Description
Technical field
This application involves power system and automation technology more particularly to a kind of direct current transient state step source signals certainly
Adapt to adjusting method and device.
Background technique
Transient state step response is measured when primary system electrical quantity changes, and direct current instrument transformer reacts original signal
And the important parameter index restored, it is the important leverage of the correct reliability service of DC control system, to the work of DC transmission system
Journey has practiced extreme influence.Direct current instrument transformer carries out factory at home and the experimental condition of on-site test is very deficient, and one
As only carried out factory testing test, and mainly the stable state accuracy of direct current is tested, is lacked to the transient state of mutual inductor
Technology is realized in step response research and corresponding high current high-performance measured power source.In engineer application, to direct current instrument transformer rank
Jump response rise time, overshoot, the indexs such as steady time that become have and are distinctly claimed, but due to lacking available transient state step signal
Source, this test are not carried out really unanimously, and existing test method is not comprehensive enough.Therefore, the rank of researching DC mutual inductor
It jumps onto liter, overshoot and stablize the steps performance indicators such as time, develop amplitude high bandwidth and the excellent direct current step of transient state index
Emulation testing power source establishes the emulation test system of complete reliable direct current instrument transformer step response, is that direct current is mutual at this stage
There is an urgent need to the significant concern of research points for sensor testing field.
In the preliminary stage that direct current instrument transformer on-the-spot test is implemented, generally in conditions permit, by disconnecting scene
The link circuit of direct current instrument transformer ontology sensing head and acquisition unit, it is defeated from acquisition unit signal using conventional signal generator
Enter front end and apply step small voltage signal, export digital sampled signal after A/D is converted, direct current verification is entered by combining unit and is set
It is standby, realize the local transient test process to direct current instrument transformer.But this method needs to change actual sampling circuit wiring,
The external circuit framework and operation stability of existing device may be will affect, there are potential security risks, should not open at the scene
Exhibition, not comprising direct current instrument transformer ontology especially in test macro, can not actual response direct current instrument transformer to an electrical quantity
The response condition of Spline smoothing, the existing defects in test method.
For disadvantages described above, current way is, using the open loop power amplifier step way of output, but it is this based on electric power electricity
The close power amplifier that sub- technology is realized, can only generate ideal open loop power amplifier step signal, when power amplifier backend load impedance becomes
Output waveform will appear distortion when change, can not carry out the step signal compensation of closed loop, be unable to the event of real simulation DC transmission system
Electrical quantity transient state step process when barrier, it is difficult to adapt to the load characteristic variation of various principle direct current instrument transformers.
Summary of the invention
The embodiment of the present application provides a kind of direct current transient state step source signal adaptive regulation method and device, solves existing
Some direct current instrument transformer transient state step sources use the open loop power amplifier step way of output, it is difficult to adapt to various principle direct current instrument transformers
The technical issues of load characteristic changes.
In view of this, the application first aspect provides a kind of direct current transient state step source signal adaptive regulation method, institute
The method of stating includes:
101, signal processing is carried out to the direct current transient state step signal got, obtains direct current transient state step small voltage letter
Number；
102, according to preset self-learning algorithm, the direct current transient state step small voltage signal of feedback is modified, is obtained
To the first step source signal, judge whether the first step source signal meets preset output condition, if so, by first rank
Jump source signal is exported as echo signal, if it is not, believing the first step source signal as the direct current transient state step
Number, it re-execute the steps 101.
Preferably, before step 101 further include:
100, direct current transient state step source system simulation model is established, in the system simulation model of the direct current transient state step source
Ac and dc systems failure is set, the direct current transient state step signal of direct current transient state step source system when failure is obtained.
Preferably, step 101 specifically includes:
Analog-to-digital conversion and Digital Signal Processing are carried out to the direct current transient state step signal got, then by digital-to-analogue conversion
Reason obtains step small voltage signal；
Linear Amplifer is carried out to the step small voltage signal, obtains step high current signal；
Signal condition is carried out to the step high current signal, standard step high current signal is obtained, to the standard rank
The high current signal that jumps carries out analog-to-digital conversion, obtains direct current transient state step small voltage signal.
Preferably, the preset self-learning algorithm is adaptive neural network-Fuzzy Logic Reasoning Algorithm.
Preferably, the preset output condition is the r.m.s. mistake of desired output signal and the direct current transient state step signal
Difference obtains minimum value.
Preferably, the root-mean-square error are as follows:
Wherein, ε is root-mean-square error, dmFor ideal output, zmFor reality output, R is to execute sum.
The application second aspect provides a kind of direct current transient state step source signal self-adaptive regulating, and described device includes:
First processing module and Second processing module；
The first processing module and Second processing module electrical connection；
The first processing module obtains direct current for carrying out signal processing to the direct current transient state step signal got
Transient state step small voltage signal；
The Second processing module is used for according to preset self-learning algorithm, to the small electricity of direct current transient state step of feedback
Pressure signal is modified, and is obtained the first step source signal, is judged whether the first step source signal meets preset output condition,
If so, being exported using the first step source signal as echo signal, if it is not, using the first step source signal as institute
State direct current transient state step signal, first processing module described in retriggered.
Preferably, described device further include: emulation module；
The emulation module, for establishing direct current transient state step source system simulation model, in the direct current transient state step source
Ac and dc systems failure is set in system simulation model, obtains the direct current transient state rank of direct current transient state step source system when failure
Jump signal.
Preferably, the first processing module specifically includes:
FPGA processor, for carrying out analog-to-digital conversion and Digital Signal Processing to the direct current transient state step signal got；
DAC chip obtains step small voltage signal for handling by digital-to-analogue conversion；
Linear power amplifier obtains step high current letter for carrying out Linear Amplifer to the step small voltage signal
Number；
High-accuracy current divider obtains standard step high current for carrying out signal condition to the step high current signal
Signal；
ADC chip obtains the small electricity of direct current transient state step for carrying out analog-to-digital conversion to the standard step high current signal
Press signal.
The application third aspect provides a kind of computer readable storage medium, and the computer readable storage medium is for depositing
Program code is stored up, said program code is for executing any one above-described direct current transient state step source signal automatic adjusument
Method.
As can be seen from the above technical solutions, the application has the following advantages:
A kind of direct current transient state step source signal adaptive regulation method provided by the present application, comprising: 101, to what is got
Direct current transient state step signal carries out signal processing, obtains direct current transient state step small voltage signal；102, it is calculated according to preset self study
Method is modified the direct current transient state step small voltage signal of feedback, obtains the first step source signal, judge described first
Whether step source signal meets preset output condition, if so, exported using the first step source signal as echo signal,
If it is not, re-executeing the steps 101 using the first step source signal as the direct current transient state step signal.The application provides
Direct current transient state step source signal adaptive regulation method use the closed loop step way of output, passed through according to preset self-learning algorithm
The direct current transient state step small voltage signal obtained after signal processing is modified, when revised signal meets preset output bars
It when part, exports, method provided by the present application, the direct current transient state step of output can be believed using the signal as echo signal
Number back production feedback is carried out, self study amendment is carried out to the signal of feedback, regardless of whether there are the negative of direct current transient state step signal source
Load, which changes, causes direct current transient state step signal to distort, and the echo signal obtained after self study is corrected is all close to true
Transient-wave when failure, therefore can adapt to the load characteristic of various principle direct current instrument transformers, solve existing direct current
Transformer transient step source uses the open loop power amplifier step way of output, it is difficult to adapt to the load characteristic of various principle direct current instrument transformers
The technical issues of variation.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to required use in embodiment description
Attached drawing be briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of stream of one embodiment of direct current transient state step source signal adaptive regulation method provided by the present application
Journey schematic diagram；
Fig. 2 is a kind of another embodiment of direct current transient state step source signal adaptive regulation method provided by the present application
Flow diagram；
Fig. 3 is a kind of knot of one embodiment of direct current transient state step source signal self-adaptive regulating provided by the present application
Structure schematic diagram.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only this
A part of the embodiment of application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Direct current transient state step source signal adaptive regulation method provided by the present application uses the closed loop step way of output, according to
Preset self-learning algorithm passes through the direct current transient state step small voltage signal obtained after signal processing and is modified, when modified letter
When number meeting preset output condition, exported using the signal as echo signal, method provided by the present application can be to output
Direct current transient state step signal carry out back production feedback, self study amendment is carried out to the signal of feedback, regardless of whether that there are direct currents is temporary
The load of state step signal source, which changes, causes direct current transient state step signal to distort, the target obtained after self study is corrected
Transient-wave when signal is all close to true fault, therefore can adapt to the load characteristic of various principle direct current instrument transformers,
Existing direct current instrument transformer transient state step source is solved using the open loop power amplifier step way of output, it is difficult to adapt to various principle direct currents
The technical issues of load characteristic variation of mutual inductor.
In order to make it easy to understand, referring to Fig. 1, a kind of direct current transient state step source signal provided by the embodiments of the present application is adaptive
Adjusting method, comprising:
Step 101: signal processing being carried out to the direct current transient state step signal got, obtains direct current transient state step small voltage
Signal.
It should be noted that direct current transient state step signal can be and directly get from signal source device, it is also possible to
It gets in a step 102.After obtaining direct current transient state step signal, need to handle direct current transient state step signal
It is exported again.
Step 102: according to preset self-learning algorithm, the direct current transient state step small voltage signal of feedback being modified, is obtained
To the first step source signal, judge whether the first step source signal meets preset output condition, if so, by the first step source signal
It is exported as echo signal, if it is not, being re-execute the steps using the first step source signal as direct current transient state step signal
101。
It should be noted that the closed-loop process in order to realize direct current transient state step signal, needs straight to what is obtained after processing
Stream transient state step small voltage signal is fed back, small to direct current transient state step signal and direct current transient state step using self-learning algorithm
Voltage signal is modified, and when direct current transient state step small voltage signal can satisfy preset output condition, can be stopped feedback and be followed
Ring, exports using direct current transient state step small voltage signal as echo signal, direct current transient state step small voltage signal at this time
It is that height is fitted with direct current transient state step signal, avoids signal distortion.
Direct current transient state step source signal adaptive regulation method provided by the present application uses the closed loop step way of output, according to
Preset self-learning algorithm passes through the direct current transient state step small voltage signal obtained after signal processing and is modified, when revised
It when signal meets preset output condition, is exported using the signal as echo signal, method provided by the present application can be to defeated
Direct current transient state step signal out carries out back production feedback, self study amendment is carried out to the signal of feedback, regardless of whether there are direct currents
The load of transient state step signal source, which changes, causes direct current transient state step signal to distort, the mesh obtained after self study is corrected
Transient-wave when mark signal is all close to true fault, therefore the load that can adapt to various principle direct current instrument transformers is special
Property, solve existing direct current instrument transformer transient state step source using the open loop power amplifier step way of output, it is difficult to adapt to various principles
The technical issues of load characteristic variation of direct current instrument transformer.
In order to make it easy to understand, referring to Fig. 2, another kind direct current transient state step source signal provided by the embodiments of the present application is adaptive
Adjusting method is answered, specifically:
Step 201: direct current transient state step source system simulation model is established, in the system simulation model of direct current transient state step source
Ac and dc systems failure is set, the direct current transient state step signal of direct current transient state step source system when failure is obtained.
It should be noted that the direct current transient state step signal in the embodiment of the present application can be through host computer acquisition,
Direct current transient state step source system simulation model is established in host computer, is then set in the system simulation model of direct current transient state step source
Set ac and dc systems failure, wherein ac and dc systems failure can be singlephase earth fault, phase-to phase fault, the direct current of exchange side
The ground fault and converter valve failure of side, the direct current transient state step signal of direct current transient state step source system when available failure.
Step 202: analog-to-digital conversion and Digital Signal Processing being carried out to the direct current transient state step signal got, then pass through number
Mould conversion process obtains step small voltage signal；
Linear Amplifer is carried out to step small voltage signal, obtains step high current signal；
Signal condition is carried out to step high current signal, standard step high current signal is obtained, to standard step high current
Signal carries out analog-to-digital conversion, obtains direct current transient state step small voltage signal.
It should be noted that needing to carry out letter to direct current transient state step signal after obtaining direct current transient state step signal
Number processing, specifically can be, realizes that the stable digital-to-analogue conversion of high speed controls by FPGA processor, when corresponding data are sent
It carves, small voltage signal is exported by analog-to-digital conversion, control power amplifier exports step high current signal, then using high-precision
The small voltage signal that current divider is converted to step high current signal for device acquisition, using high speed analog-to-digital conversion module to small
Voltage signal is acquired, and finally the data of back production are returned using high-speed internal digital quantity transport protocol and fed back by optical fiber.
Step 203: according to preset self-learning algorithm, the direct current transient state step small voltage signal of feedback being modified, is obtained
To the first step source signal, judge whether the first step source signal meets preset output condition, if so, by the first step source signal
It is exported as echo signal, if it is not, being re-execute the steps using the first step source signal as direct current transient state step signal
202。
It should be noted that step 203 and step 102 are consistent, herein without being described in detail.
Further, preset self-learning algorithm is adaptive neural network-Fuzzy Logic Reasoning Algorithm.
It should be noted that fuzzy logic and neural network develop comparatively fast in recent years, fuzzy inference system is very suitable for table
Show fuzzy experience and knowledge, but lacks effective study mechanism；Although neural network has self-learning function, but cannot be fine
Expression human brain inference function.Adaptive neural network-Fuzzy Logic Reasoning Algorithm is a kind of that fuzzy logic and neuroid is organic
In conjunction with novel fuzzy reasoning method, using back-propagation algorithm and the hybrid algorithm of least square method adjustment premise parameter and
Consequent parameter, and If-Then rule can be automatically generated.It by neural network and is obscured based on adaptive neural network-Fuzzy Logic Reasoning Algorithm
The advantages of reasoning organically combines, and has not only played the two, but also compensate for respective deficiency.
In the embodiment of the present application, after carrying out back production feedback to direct current transient state step small voltage signal, adaptive mind is utilized
Through-Fuzzy Logic Reasoning Algorithm, the corresponding system of combination algorithm is modified direct current transient state step small voltage signal, by not
Transient state wave after disconnected study and iteration, when the direct current transient state step small voltage signal waveform of final output is close to true fault
Shape.
Further, preset output condition is the root-mean-square error acquirement of desired output signal and direct current transient state step signal
Minimum value.
It should be noted that direct current transient signal when desired output signal is true fault, in the embodiment of the present application
In can be considered as the direct current transient state step signal got.In the embodiment of the present application, signal transient state step process is one non-thread
Property process, so the application uses the minimum root-mean-square error of selection for learning objective, it may be assumed that
Wherein, ε is root-mean-square error, dmFor ideal output, zmFor reality output, R is to execute sum；When ε is minimized
Corresponding direct current transient state step small voltage signal is echo signal.
The selection of minimum root-mean-square error is related with the data window selection of signal, the selection to data window, and data window rises
Point captures algorithm using transient state mutation, is mutated and is captured in algorithm in transient state, the calculating of Sudden Changing Rate are as follows: Δ i=| [i (t)-i (t-
T)]-[i(t-T)-i(t-2T)]|；I is current instantaneous value, and t is current time, and T is in real-time simulation signal from starting to transient state
The time (time for reaching 90% steady-state value from 0) that signal is established；When the length of data window uses the starting of real-time simulation signal
Carve the time between transient DC current signal stable, wherein DC current stabilization refers to the current amplitude continuous T moment at it
Within the scope of DC Steady signal allowable error.
In order to make it easy to understand, referring to Fig. 3, a kind of direct current transient state step source signal provided by the embodiments of the present application is adaptive
Regulating device, specifically:
First processing module 301 and Second processing module 302；
First processing module 301 and Second processing module 302 are electrically connected；
It is temporary to obtain direct current for carrying out signal processing to the direct current transient state step signal got for first processing module 301
State step small voltage signal；
Second processing module 302 is used for according to preset self-learning algorithm, to the direct current transient state step small voltage signal of feedback
It is modified, obtains the first step source signal, judge whether the first step source signal meets preset output condition, if so, by
One step source signal is exported as echo signal, if it is not, using the first step source signal as direct current transient state step signal, weight
New triggering first processing module 301.
It should be noted that preset self-learning algorithm is adaptive neural network-Fuzzy Logic Reasoning Algorithm, preset output condition is reason
Think that the root-mean-square error of output signal and direct current transient state step signal obtains minimum value.
Further, device further include: emulation module 300；
Emulation module 300, it is imitative in direct current transient state step source system for establishing direct current transient state step source system simulation model
Ac and dc systems failure is set in true mode, obtains the direct current transient state step signal of direct current transient state step source system when failure.
Ac and dc systems failure include: exchange the singlephase earth fault of side, phase-to phase fault, DC side ground fault and change
Flow valve failure.
Further, first processing module 301 specifically includes:
FPGA processor, for carrying out analog-to-digital conversion and Digital Signal Processing to the direct current transient state step signal got；
DAC chip obtains step small voltage signal for handling by digital-to-analogue conversion；
Linear power amplifier obtains step high current signal for carrying out Linear Amplifer to step small voltage signal；
High-accuracy current divider obtains standard step high current signal for carrying out signal condition to step high current signal；
ADC chip obtains direct current transient state step small voltage letter for carrying out analog-to-digital conversion to standard step high current signal
Number.
A kind of computer readable storage medium provided by the embodiments of the present application, for storing program code, described program generation
Code is for executing any one direct current transient state step source signal adaptive regulation method in above embodiments.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
The description of the present application and term " first " in above-mentioned attached drawing, " second ", " third ", " the 4th " etc. are (if deposited
) it is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that use in this way
Data are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
It should be appreciated that in this application, " at least one (item) " refers to one or more, and " multiple " refer to two or two
More than a."and/or" indicates may exist three kinds of relationships, for example, " A and/or B " for describing the incidence relation of affiliated partner
It can indicate: only exist A, only exist B and exist simultaneously tri- kinds of situations of A and B, wherein A, B can be odd number or plural number.Word
Symbol "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or"." at least one of following (a) " or its similar expression, refers to
Any combination in these, any combination including individual event (a) or complex item (a).At least one of for example, in a, b or c
(a) can indicate: a, b, c, " a and b ", " a and c ", " b and c ", or " a and b and c ", and wherein a, b, c can be individually, can also
To be multiple.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (full name in English: Read-Only
Memory, english abbreviation: ROM), random access memory (full name in English: Random Access Memory, english abbreviation:
RAM), the various media that can store program code such as magnetic or disk.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of direct current transient state step source signal adaptive regulation method characterized by comprising
101, signal processing is carried out to the direct current transient state step signal got, obtains direct current transient state step small voltage signal；
102, according to preset self-learning algorithm, the direct current transient state step small voltage signal of feedback is modified, obtains
One step source signal, judges whether the first step source signal meets preset output condition, if so, by first step source
Signal is exported as echo signal, if it is not, using the first step source signal as the direct current transient state step signal, weight
It is new to execute step 101.
2. the method according to claim 1, wherein before step 101 further include:
100, direct current transient state step source system simulation model is established, is arranged in the system simulation model of the direct current transient state step source
Ac and dc systems failure obtains the direct current transient state step signal of direct current transient state step source system when failure.
3. method according to claim 1 or 2, which is characterized in that step 101 specifically includes:
Analog-to-digital conversion and Digital Signal Processing are carried out to the direct current transient state step signal got, then handled by digital-to-analogue conversion
To step small voltage signal；
Linear Amplifer is carried out to the step small voltage signal, obtains step high current signal；
Signal condition is carried out to the step high current signal, obtains standard step high current signal, it is big to the standard step
Current signal carries out analog-to-digital conversion, obtains direct current transient state step small voltage signal.
4. method according to claim 1 or 2, which is characterized in that the preset self-learning algorithm is adaptive neural network-mould
Paste reasoning algorithm.
5. the method according to claim 1, wherein the preset output condition be desired output signal with it is described
The root-mean-square error of direct current transient state step signal obtains minimum value.
6. according to the method described in claim 5, it is characterized in that, the root-mean-square error are as follows:
Wherein, ε is root-mean-square error, dmFor ideal output, zmFor reality output, R is to execute sum.
7. a kind of direct current transient state step source signal self-adaptive regulating characterized by comprising first processing module and second
Processing module；
The first processing module and Second processing module electrical connection；
The first processing module obtains direct current transient state for carrying out signal processing to the direct current transient state step signal got
Step small voltage signal；
The Second processing module, for believing the direct current transient state step small voltage of feedback according to preset self-learning algorithm
It number is modified, obtains the first step source signal, judge whether the first step source signal meets preset output condition, if
It is to be exported using the first step source signal as echo signal, if it is not, using the first step source signal as described in
Direct current transient state step signal, first processing module described in retriggered.
8. direct current transient state step source signal self-adaptive regulating according to claim 7, which is characterized in that described device
Further include: emulation module；
The emulation module, for establishing direct current transient state step source system simulation model, in direct current transient state step source system
Ac and dc systems failure is set in simulation model, obtains the direct current transient state step letter of direct current transient state step source system when failure
Number.
9. direct current transient state step source signal self-adaptive regulating according to claim 7 or 8, which is characterized in that described
First processing module specifically includes:
FPGA processor, for carrying out analog-to-digital conversion and Digital Signal Processing to the direct current transient state step signal got；
DAC chip obtains step small voltage signal for handling by digital-to-analogue conversion；
Linear power amplifier obtains step high current signal for carrying out Linear Amplifer to the step small voltage signal；
High-accuracy current divider obtains standard step high current signal for carrying out signal condition to the step high current signal；
ADC chip obtains direct current transient state step small voltage letter for carrying out analog-to-digital conversion to the standard step high current signal
Number.
10. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium is for storing program generation
Code, said program code require a kind of described in any item direct current transient state step source signals of 1-6 adaptively to adjust for perform claim
Section method.
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| CN201810833670.XA CN109143142A (en) | 2018-07-26 | 2018-07-26 | A kind of direct current transient state step source signal adaptive regulation method and device |
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| CN111044965A (en) * | 2019-12-12 | 2020-04-21 | 国网内蒙古东部电力有限公司电力科学研究院 | Method for realizing real-time stability-approaching feedback direct-current transient step current source |
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| CN111044965A (en) * | 2019-12-12 | 2020-04-21 | 国网内蒙古东部电力有限公司电力科学研究院 | Method for realizing real-time stability-approaching feedback direct-current transient step current source |
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