CN109472231A - Substation's harmonic source location method and device, computer readable storage medium - Google Patents
Substation's harmonic source location method and device, computer readable storage medium Download PDFInfo
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Abstract
The present invention relates to power transmission technology fields, provide a kind of substation's harmonic source location method and device, computer readable storage medium, it include: the precision interval clock synchronous protocol standard based on network measure and control system, the harmonic voltage data of all buses of substation are monitored and obtain, and whether the harmonic voltage data according to the convergence test of harmonic wave phase angle have availability；The harmonic voltage data that will be provided with availability input preset location algorithm model and carry out data processing, a variety of harmonic source location algorithms of the location algorithm model integrated；According to the output of the location algorithm model as a result, the position to harmonic source positions.The present invention is based on 1588 standards of IEEE to synchronize monitoring to the harmonic voltage data on all buses of substation, and the harmonic voltage data monitored are handled in conjunction with a variety of harmonic source location algorithms, to orient harmonic source according to final processing result, the accuracy of harmonic source location is improved.
Description
Technical field
The invention belongs to power transmission technology fields, are to be related to a kind of substation's harmonic source location method more specifically
And device, computer readable storage medium.
Background technique
With the industry and expanding economy of society so that electric system is in Generation Side, D.C. high voltage transmission and user
The electronic trend of side is more and more significant.Being widely used for power electronic equipment brings more serious power quality problem, especially
It is harmonic wave and m-Acetyl chlorophosphonazo problem, tremendous influence is brought to the safe and stable operation of converter station, capacitor group etc., while also to electricity
The peace of power user equipment such as frequency converter, PLC (Programmable Logic Controller, programmable logic controller (PLC)) etc.
Full reliability service brings hidden danger.The a lot of harmonic resonances or Harmonics amplification event that western Shandong DC engineering occurs are proved harmonic wave to electricity
The safe and stable operation of power electronization electric system is very important.
Due to both containing background harmonics in the stress_responsive genes result of harmonic excess branch, the feature also containing user's transmitting is humorous
Wave, therefore correctly recognize harmonic source and assess each branch at points of common connection (Point of Common Coupling, PCC)
Harmonic wave distribution is to carry out one of frequency analysis and the primary work of improvement, horizontal to the harmonic pollution of power grid for grasping user
With important research meaning.
At present, harmonic source location mainly has the algorithm based on Type Equivalent Circuit Model and the algorithm based on harmonic state estimation.
It is existing to be generally accurately positioned in modeling and simulating, but modeling and simulating be take power grid a section (physics and time dimension
Degree), it can only be applicable in for power grid in specific region, specific time, the dynamic change of power grid characteristic can not be followed and changed, institute
With often ineffective in practical applications, or even positioning mistake.And since system harmonic impedance, harmonic trend become real-time, quickly
Change, harmonic source location require multiple front end monitoring unit must be it is synchronous on the time, otherwise will lead to Detecting Power Harmonicies result, with
And there is deviation in harmonic source location result.
Summary of the invention
The present invention provides a kind of substation's harmonic source location method and device, computer readable storage medium, to solve to pass
The harmonic source location circuit of system is asynchronous, can not follow the dynamic change of power grid characteristic and change, cause Detecting Power Harmonicies result with
And there is the problem of deviation in harmonic source location result.
The first aspect of the embodiment of the present invention provides a kind of substation's harmonic source location method, comprising:
Precision interval clock synchronous protocol standard based on network measure and control system, monitors and obtains all buses of substation
Harmonic voltage data, and whether the harmonic voltage data according to the convergence test of harmonic wave phase angle have availability；
The harmonic voltage data that will be provided with availability input preset location algorithm model and carry out data processing, described
The a variety of harmonic source location algorithms of location algorithm model integrated；
According to the output of the location algorithm model as a result, the position to harmonic source positions.
The second aspect of the embodiment of the present invention provides a kind of substation's harmonic source location device, including memory, processing
Device and storage in the memory and the computer program that can run on the processor, described in the processor execution
When computer program realize as the step of include:
Precision interval clock synchronous protocol standard based on network measure and control system, monitors and obtains all buses of substation
Harmonic voltage data, and whether the harmonic voltage data according to the convergence test of harmonic wave phase angle have availability；
The harmonic voltage data that will be provided with availability input preset location algorithm model and carry out data processing, described
The a variety of harmonic source location algorithms of location algorithm model integrated；
According to the output of the location algorithm model as a result, the position to harmonic source positions.
The third aspect of the embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, and the computer program realizes that substation's harmonic source as described above is fixed when being executed by processor
The step of position method.
The embodiment of the present invention synchronizes the harmonic voltage data on all buses of substation based on 1588 standard of IEEE
Monitoring, and the harmonic voltage data monitored are handled in conjunction with a variety of harmonic source location algorithms, according to final processing
As a result harmonic source is oriented, the accuracy of harmonic source location is improved.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation flow chart of substation's harmonic source location method provided in an embodiment of the present invention；
Fig. 2 is the hardware structure example block diagram of front end monitoring device provided in an embodiment of the present invention；
Fig. 3 is the synchronization module example block diagram of front end monitoring device provided in an embodiment of the present invention；
Fig. 4 is provided in an embodiment of the present invention when location algorithm model is integrated with a variety of harmonic source locations calculations in a serial fashion
When method, flow chart that harmonic source is positioned；
Fig. 5 is integrated with a variety of harmonic sources when location algorithm model to be provided in an embodiment of the present invention with serial parallel amalgamation mode
When location algorithm, flow chart that harmonic source is positioned；
Fig. 6 is the schematic diagram of substation's harmonic source location device provided in an embodiment of the present invention.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Fig. 1 shows the implementation process of substation's harmonic source location method provided in an embodiment of the present invention, and details are as follows:
S101: the precision interval clock synchronous protocol standard based on network measure and control system monitors and obtains substation
Have the harmonic voltage data of bus, and the harmonic voltage data according to the convergence test of harmonic wave phase angle whether have it is available
Property.
Carrying out full monitoring to substation is the basis for realizing harmonic source location, so-called full monitoring is arranged for substation
Multiple front end monitoring devices are monitored the loop data on all buses of substation.Due to multiple front end monitoring devices it
Between may separate farther out, in order to guarantee the synchronism of data that electrical substation monitoring arrives, in embodiments of the present invention, surveyed based on network
The precision interval clock synchronous protocol standard of amount and control system, i.e. 1588 standard of IEEE, to realize between multiple front end monitoring devices
The high precision clock of monitoring data is synchronous.Wherein, when the recorded message by way of beating timestamp of IEEE 1588 sends and reaches
Between, message transmissions delay is calculated, so that the existing delay of message bi-directional between master-salve clock is overcome, when realizing principal and subordinate
Synchronization between clock.
Further, field programmable gate array (Field-Programmable Gate is used in the embodiment of the present invention
Array, FPGA) Lai Shixian timestamp acquisition, and realize from clock with respect to master clock frequency deviation correction, pass through hardware circuit
The mode of acquisition time stamp can reach higher synchronization accuracy.
In the concrete realization, on the one hand front end monitoring device will meet fundamental measurement parameter and electric energy matter in hardware design
The required precision and reliability, safety of monitoring parameters are measured, the scalability of device is on the other hand also met, guarantees monitoring number
According to synchronization.As an implementation example of the invention, Fig. 2 shows the hardware structure example block diagrams of front end monitoring device, use
In the synchronous synchronization module of guarantee monitoring data as shown in figure 3, it is realized based on FPGA.Specifically, each front end monitoring device
Including central processing unit (Central Processing Unit, CPU), media access control layer (Media Access
Control, MAC), port physical layer (Port Physical Layer, PHY), 4 kinds of main devices such as FPGA.PHY and MAC is logical
The MII interface for crossing standard is connected, and CPU is connected by bus with MAC and FPGA, and PHY, MAC and CPU constitute communication protocol stack, complete
At sending and receiving for data packet.The controller of FPGA realizes that clock adjusts algorithm, and timestamp and local clock by obtaining
It compares, obtains frequency compensation value, to control clock counter numerical value, compensate the frequency of crystal oscillator.In order to make the crystalline substance from clock
Vibration frequency is consistent with master clock, and the adjustable clock of frequency is needed in FPGA to realize that crystal oscillator is rectified a deviation, by frequency
Value register, frequency dividing accumulator, system clock counter composition are compensated, in each crystal oscillator period, in frequency compensation value register
The frequency compensation value of preservation is added in frequency dividing accumulator, is added with the value in frequency dividing accumulator.It is not only able to obtain using FPGA
Most accurate timestamp is obtained, and the crystal oscillator frequency from clock accurately can be compensated using the method for digital circuit.
Pass through multiple front end monitoring devices, after monitoring and getting the harmonic voltage data of all buses of substation, root
Determine whether harmonic voltage data have availability according to the convergence of harmonic wave phase angle.
S102: the harmonic voltage data that will be provided with availability input preset location algorithm model and carry out at data
Reason, a variety of harmonic source location algorithms of the location algorithm model integrated.
In embodiments of the present invention, the harmonic voltage data for having availability monitored for front end monitoring device,
Preset location algorithm model can be input to and carry out data processing.A variety of harmonic source locations are integrated in location algorithm model to calculate
Method, for this variety of harmonic source location algorithm, location algorithm model is according to design requirement, the side merged with serial or serial parallel
Formula executes this variety of harmonic source location algorithm, to complete the processing to harmonic voltage data, output result is used for humorous
The position of wave source is positioned.
S103: according to the output of the location algorithm model as a result, the position to harmonic source positions.
The embodiment of the present invention synchronizes the harmonic voltage data on all buses of substation based on 1588 standard of IEEE
Monitoring, and the harmonic voltage data monitored are handled in conjunction with a variety of harmonic source location algorithms, according to final processing
As a result harmonic source is oriented, the accuracy of harmonic source location is improved.
As an embodiment of the present invention, Fig. 4 show when location algorithm model be integrated in a serial fashion it is a variety of humorous
When wave source location algorithm, process that harmonic source is positioned.Under serial mode, location algorithm model is according to preset order string
Row executes a variety of harmonic source location algorithms, and using the output of the harmonic source location algorithm finally executed as the location algorithm mould
The output result of type.Referring to Fig. 4:
S401: the harmonic voltage matrix being made of the harmonic voltage data for having availability is obtained, and uses isolated component
Analytic approach obtains the admittance matrix that all bus admittances are constituted.
S402: harmonic voltage matrix is multiplied with admittance matrix, obtains harmonic current matrix.
S403: after carrying out noise reduction process to harmonic current matrix with wavelet analysis method, the harmonic wave greater than zero is therefrom extracted
Electric current obtains the harmonic current matrix of non-zero.
S404: handling the harmonic current matrix of harmonic voltage matrix and non-zero by correlation analysis, obtains harmonic wave electricity
The related coefficient of pressure and harmonic current, and related coefficient is normalized, obtain the degree of correlation.
S405: the corresponding harmonic voltage data source of maximum relation degree is determined as harmonic source.
In the corresponding embodiment of Fig. 4, admittance matrix is acquired using Independent component analysis, and then reconstruct harmonic current,
It recycles correlation analysis to obtain the degree of correlation of harmonic voltage and harmonic current, harmonic source is found out with this, process is not necessarily to
The parameter and topological structure for knowing power grid can determine the position of harmonic source merely with the harmonic voltage of every bus
Position, and it is accurate and reliable to fix result.
As an embodiment of the present invention, Fig. 5 is shown when location algorithm model is integrated with serial parallel amalgamation mode
When a variety of harmonic source location algorithms, process that harmonic source is positioned.Under serial parallel amalgamation mode, location algorithm model is same
Step executes a variety of harmonic source location algorithms, and according to the corresponding implementing result of harmonic source location algorithm each after synchronous execute, with
And according to the corresponding implementing result of a variety of harmonic source location algorithms is serially executed, obtain the location algorithm under serial parallel amalgamation mode
The output result of model.Wherein, when location algorithm model carries out algorithm integration with serial parallel amalgamation mode, integrated algorithm packet
Include harmonic impedance method, Independent component analysis, correlation analysis, further include Fig. 4 corresponding embodiment refer to with serial side
Formula integrates related wavelet analysis method when a variety of harmonic source location algorithms.Referring to Fig. 5:
S501: harmonic impedance method, Independent component analysis and correlation analysis is respectively adopted to having the humorous of availability
Wave voltage data are handled, and the corresponding implementing result of three of the above harmonic source location algorithm is respectively obtained.
Wherein, the harmonic voltage data for having availability are handled using harmonic impedance method, process flow is as follows:
By the harmonic current at the harmonic voltage at measurement bus points of common connection, and measurement harmonic source access bus, carry out humorous
The estimation of wave impedance, wherein harmonic impedance is equal to the ratio of harmonic voltage difference and harmonic wave current difference that harmonic fluctuations are acutely located.It
Afterwards, main fluctuation is screened by data screening using leading undulate quantity method, utilizes ZS=Δ UPCC/ΔIPCCCalculate harmonic wave
Impedance ZS, wherein Δ UPCCPoor, the Δ I for the harmonic voltage after screeningPCCIt is poor for the harmonic current after screening.Here, data screening
Purpose be improve calculate accuracy.Finally, calculated harmonic impedance can be used in positioning harmonic source, harmonic wave
Impedance is bigger, and it is bigger to represent the harmonic impedance corresponding a possibility that there are harmonic sources.
The harmonic voltage data for having availability are handled using Independent component analysis, process flow is as follows:
The first step obtains 10 cycle measured values of all bus harmonic voltages based on the harmonic voltage data for having availability, and will obtain
The data got go mean value and albefaction；Second step carries out data pretreated in the first step using Independent Component Analysis Algorithm
Processing, calculates corresponding separation matrix；Third step is ranked up the measurement data of harmonic current by order identification；Finally,
Harmonic source is recognized by finding matching sequence.
The harmonic voltage data for having availability are handled using correlation analysis, process flow is as follows: first
First, judge that harmonic source flows to by active power flow direction, to find out all feeder line harmonic sources for flowing to system side by user side；
Secondly, obtaining the undulate quantity of voltage and current at PCC according to principle of stacking, according to undulate quantity calculated result, find out leading secondary humorous
Wave source；Again, the sequence of real numbers x (n) and y (n) for being N by two sampling numbers, describe the correlation coefficient charts of its similarity degree
Up to formula；Finally, being divided by the liability for polution that the size of related coefficient carries out each harmonic source.Wherein, the phase relation of similarity degree
Counting expression formula is
S502: serially executing Independent component analysis, wavelet analysis method and correlation analysis, to having the humorous of availability
Wave voltage data are handled, and corresponding implementing result is serially executed.
The execution of S502 and corresponding implementing result, are referred to Fig. 4 corresponding embodiment, this will not be repeated here.
S503: using synthetical Evaluation technology, to the corresponding implementing result of three kinds of harmonic source location algorithms in S501 and
Corresponding implementing result is serially executed in S502 and carries out Comprehensive Evaluation, exports final implementing result.
Specifically, as shown in figure 5, S503 can be realized by following steps:
S5031: the confidence level of the corresponding implementing result of each harmonic source location algorithm after synchronous execute is obtained, and is obtained
According to the confidence level for serially executing the corresponding implementing result of a variety of harmonic source location algorithms.
That is, getting the confidence level of each implementing result got in S501 and S502 respectively.
S5032: the confidence level that will acquire is weighted combination, obtains the location algorithm model under serial parallel amalgamation mode
Output result.
In statistics, the confidence interval (Confidence interval) of a probability sample is to this sample
The interval estimation of some population parameter, what confidence interval showed is that the true value of this parameter has certain probability to fall in measurement result
Around degree, what confidence interval provided is the credibility for being measured the measured value of parameter, i.e., " certain required by front
Probability ", this probability are referred to as confidence level.Therefore, in embodiments of the present invention, the confidence level of each implementing result indicates each
The credibility of implementing result, i.e., the credibility for the harmonic source that each implementing result is oriented.Here, to obtained by algorithms of different
The confidence level of harmonic source out is weighted combination, to determine final harmonic source location result.
Corresponding to embodiment shown in Fig. 4, embodiment shown in fig. 5 carries out serial parallel to harmonic voltage data with more algorithms
Fusion treatment, so that positioning result has higher accuracy.
Fig. 6 is the schematic diagram for substation's harmonic source location device that one embodiment of the invention provides.As shown in fig. 6, the reality
The substation's harmonic source location device 6 for applying example includes: processor 60, memory 61 and is stored in the memory 61 and can
The computer program 62 run on the processor 60, such as substation's harmonic source location program.The processor 60 executes
The step in above-mentioned each substation's harmonic source location installation method embodiment, such as Fig. 1 are realized when the computer program 62
Shown step 101 is to 103.Illustratively, the computer program 62 can be divided into one or more module/units,
One or more of module/units are stored in the memory 61, and are executed by the processor 60, to complete this
Invention.One or more of module/units can be the series of computation machine program instruction section that can complete specific function, should
Instruction segment is for describing implementation procedure of the computer program 62 in substation's harmonic source location device 6, comprising:
Precision interval clock synchronous protocol standard based on network measure and control system, monitors and obtains all buses of substation
Harmonic voltage data, and whether the harmonic voltage data according to the convergence test of harmonic wave phase angle have availability；
The harmonic voltage data that will be provided with availability input preset location algorithm model and carry out data processing, described
The a variety of harmonic source location algorithms of location algorithm model integrated；
According to the output of the location algorithm model as a result, the position to harmonic source positions.
Further, the location algorithm model is integrated with a variety of harmonic source location algorithms in a serial fashion, in institute
It states under serial mode, the location algorithm model serially executes a variety of harmonic source location algorithms according to preset order, and will
Output result of the output of the harmonic source location algorithm finally executed as the location algorithm model.
Further, the location algorithm model is integrated with a variety of harmonic source location algorithms with serial parallel amalgamation mode,
Under the serial parallel amalgamation mode, the location algorithm mold sync executes a variety of harmonic source location algorithms, and according to same
Step corresponding implementing result of each harmonic source location algorithm after executing, and it is fixed according to a variety of harmonic sources are serially executed
The corresponding implementing result of position algorithm, obtains the output result of the location algorithm model under the serial parallel amalgamation mode.
Further, described according to the corresponding implementing result of the harmonic source location algorithm each after synchronous execute, and
According to the corresponding implementing result of a variety of harmonic source location algorithms is serially executed, the institute under the serial parallel amalgamation mode is obtained
State the output result of location algorithm model, comprising:
The confidence level of the corresponding implementing result of each harmonic source location algorithm after synchronous execute is obtained, and obtains root
According to the confidence level for serially executing the corresponding implementing result of a variety of harmonic source location algorithms；
The confidence level that will acquire is weighted combination, obtains the location algorithm mould under the serial parallel amalgamation mode
The output result of type.
Further, a variety of harmonic source location algorithms include Independent component analysis, wavelet analysis method and correlation
Analytic approach；
Alternatively, a variety of harmonic source location algorithms include harmonic impedance method, Independent component analysis, correlation analysis
And wavelet analysis method.
During actual scheme is realized, in order to guarantee to measure the loop data on all buses of substation, substation
Harmonic source location device 6 must be expansible assembling, and different monitoring unit, communication unit can be needed to configure according to actual monitoring
Member and data processing unit.In addition, substation's harmonic source location device 6 is not fixedly mounted, it can be in different power transformations
It stands movable application, does not have real-time to overcome portable electric energy mass-synchrometer in the prior art, and it is fixedly mounted
The immovable formula application of electric energy quality on-line monitoring device, it is humorous to can not achieve substation for equipment purchasing and higher operating costs
The shortcomings that wave multiloop Simultaneous Monitoring, realizes by synchronizing Detecting Power Harmonicies to all circuits of substation, to substation
The technical effect that harmonic source is positioned.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as
Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device
Or the INDIRECT COUPLING or communication connection of unit, it 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, the functional units in various embodiments of the present invention may be integrated into 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 module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..Computer-readable Jie
Matter may include: can carry the computer program code any entity or device, recording medium, USB flash disk, mobile hard disk,
Magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as does not include electric carrier signal and electricity according to legislation and patent practice, computer-readable medium in certain jurisdictions
Believe signal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of substation's harmonic source location method characterized by comprising
Precision interval clock synchronous protocol standard based on network measure and control system, monitors and obtains the humorous of all buses of substation
Wave voltage data, and whether the harmonic voltage data according to the convergence test of harmonic wave phase angle have availability；
The harmonic voltage data that will be provided with availability input preset location algorithm model and carry out data processing, the positioning
Algorithm model is integrated with a variety of harmonic source location algorithms；
According to the output of the location algorithm model as a result, the position to harmonic source positions.
2. substation's harmonic source location method as described in claim 1, which is characterized in that the location algorithm model is with serial
Mode is integrated with a variety of harmonic source location algorithms,
Under the serial mode, the location algorithm model serially executes a variety of harmonic source locations according to preset order and calculates
Method, and the output result by the output of the harmonic source location algorithm finally executed as the location algorithm model.
3. substation's harmonic source location method as described in claim 1, which is characterized in that the location algorithm model is to go here and there simultaneously
Row amalgamation mode is integrated with a variety of harmonic source location algorithms,
Under the serial parallel amalgamation mode, the location algorithm mold sync executes a variety of harmonic source location algorithms, and
According to the corresponding implementing result of the harmonic source location algorithm each after synchronous execute, and it is described a variety of humorous according to serially executing
The corresponding implementing result of wave source location algorithm obtains the output knot of the location algorithm model under the serial parallel amalgamation mode
Fruit.
4. substation's harmonic source location method as claimed in claim 3, which is characterized in that described according to each after synchronous execute
The corresponding implementing result of the harmonic source location algorithm, and it is corresponding according to a variety of harmonic source location algorithms are serially executed
Implementing result obtains the output result of the location algorithm model under the serial parallel amalgamation mode, comprising:
The confidence level of the corresponding implementing result of each harmonic source location algorithm after synchronous execute is obtained, and is obtained according to string
Row executes the confidence level of the corresponding implementing result of a variety of harmonic source location algorithms；
The confidence level that will acquire is weighted combination, obtains the location algorithm model under the serial parallel amalgamation mode
Export result.
5. substation's harmonic source location method as described in claim 1, which is characterized in that a variety of harmonic source location algorithms
Including Independent component analysis, wavelet analysis method and correlation analysis；
Alternatively, a variety of harmonic source location algorithms include harmonic impedance method, Independent component analysis, correlation analysis and small
Wave analysis method.
6. a kind of substation's harmonic source location device, including memory, processor and storage are in the memory and can be
The computer program run on the processor, which is characterized in that the processor is realized such as when executing the computer program
The step of include:
Precision interval clock synchronous protocol standard based on network measure and control system, monitors and obtains the humorous of all buses of substation
Wave voltage data, and whether the harmonic voltage data according to the convergence test of harmonic wave phase angle have availability；
The harmonic voltage data that will be provided with availability input preset location algorithm model and carry out data processing, the positioning
Algorithm model is integrated with a variety of harmonic source location algorithms；
According to the output of the location algorithm model as a result, the position to harmonic source positions.
7. substation's harmonic source location device as claimed in claim 6, which is characterized in that the location algorithm model is with serial
Mode is integrated with a variety of harmonic source location algorithms,
Under the serial mode, the location algorithm model serially executes a variety of harmonic source locations according to preset order and calculates
Method, and the output result by the output of the harmonic source location algorithm finally executed as the location algorithm model.
8. substation's harmonic source location device as claimed in claim 6, which is characterized in that the location algorithm model is to go here and there simultaneously
Row amalgamation mode is integrated with a variety of harmonic source location algorithms,
Under the serial parallel amalgamation mode, the location algorithm mold sync executes a variety of harmonic source location algorithms, and
According to the corresponding implementing result of the harmonic source location algorithm each after synchronous execute, and it is described a variety of humorous according to serially executing
The corresponding implementing result of wave source location algorithm obtains the output knot of the location algorithm model under the serial parallel amalgamation mode
Fruit.
9. substation's harmonic source location device as claimed in claim 8, which is characterized in that described according to each after synchronous execute
The corresponding implementing result of the harmonic source location algorithm, and it is corresponding according to a variety of harmonic source location algorithms are serially executed
Implementing result obtains the output result of the location algorithm model under the serial parallel amalgamation mode, comprising:
The confidence level of the corresponding implementing result of each harmonic source location algorithm after synchronous execute is obtained, and is obtained according to string
Row executes the confidence level of the corresponding implementing result of a variety of harmonic source location algorithms；
The confidence level that will acquire is weighted combination, obtains the location algorithm model under the serial parallel amalgamation mode
Export result.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 5 of realization the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285513.6A CN109472231B (en) | 2018-10-31 | 2018-10-31 | Transformer substation harmonic source positioning method and device and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811285513.6A CN109472231B (en) | 2018-10-31 | 2018-10-31 | Transformer substation harmonic source positioning method and device and computer readable storage medium |
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| CN112528762B (en) * | 2020-11-25 | 2022-07-05 | 福州大学 | Harmonic source identification method based on data correlation analysis |
| CN113435490A (en) * | 2021-06-18 | 2021-09-24 | 国网宁夏电力有限公司电力科学研究院 | Harmonic tracing method based on dynamic programming time series similarity algorithm |
| CN113435490B (en) * | 2021-06-18 | 2022-06-28 | 国网宁夏电力有限公司电力科学研究院 | Harmonic tracing method based on dynamic programming time series similarity algorithm |
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