CN108365771A - The region decision method, apparatus and electronic equipment of reference vector - Google Patents
The region decision method, apparatus and electronic equipment of reference vector Download PDFInfo
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- CN108365771A CN108365771A CN201810665342.3A CN201810665342A CN108365771A CN 108365771 A CN108365771 A CN 108365771A CN 201810665342 A CN201810665342 A CN 201810665342A CN 108365771 A CN108365771 A CN 108365771A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides the region decision method, apparatus and electronic equipment of a kind of reference vector, are related to space vector technique field, and this method includes that the regular polygon distribution map of multiple space voltage vectors is obtained using space vector modulation technique；The regular polygon distribution map is divided into multiple sectors, and each sector is divided into multiple subregions；Obtain the boundary straight line for dividing each subregion, it determines equilibrium relationships of the object space voltage vector in every boundary straight line position of pre-acquiring, and determines inequality relation of the object space voltage vector of pre-acquiring in each subregion；According to the equilibrium relationships and the inequality relation, the subregion where object reference vector is determined.The present invention can more easily judge the region where reference vector.
Description
Technical field
The present invention relates to space vector technique fields, more particularly, to a kind of region decision method, apparatus of reference vector
And electronic equipment.
Background technology
Currently, more and more to the research of space voltage vector control technology in vector control technology, application is also got over
Come more extensive.The region decision of reference vector in space voltage vector control algorithm is to realize space voltage vector control
Committed step.It is existing by traditional 3 level space vector control algolithm for the application in terms of reference vector region decision
Reference vector region decision method calculate it is complex, be not easy to Digital Realization.
Invention content
In view of this, the region decision method, apparatus and electronics the purpose of the present invention is to provide a kind of reference vector are set
It is standby, it can more easily determine the region where reference vector, contribute to Digital Realization.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows：
In a first aspect, an embodiment of the present invention provides a kind of region decision method of reference vector, this method includes：Using space
Vector modulation technique obtains the regular polygon distribution map of multiple space voltage vectors；Regular polygon distribution map is divided into multiple fans
Area, and each sector is divided into multiple subregions；Wherein, include multiple reference vectors, Mei Gecan in every sub-regions
It is the vector synthesized by specified space voltage vector to examine vector；The boundary straight line divided per sub-regions is obtained, determination obtains in advance
The object space voltage vector taken each edge circle straight line position equilibrium relationships, and determine pre-acquiring target empty
Between inequality relation of the voltage vector in every sub-regions；According to equilibrium relationships and inequality relation, determine that object reference is sweared
Subregion where measuring.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein really
Determine equilibrium relationships of the object space voltage vector in each edge circle straight line position of pre-acquiring, and determines pre-acquiring
The step of inequality relation of the object space voltage vector in every sub-regions, including：Determine the object space electricity of pre-acquiring
Press vector in the corresponding vector value of each edge circle straight line position, according to object space voltage vector in each edge circle straight line
The corresponding vector value of position determines that object space voltage vector is closed in the equation of each edge circle straight line position
System；It determines the object space voltage vector of the pre-acquiring corresponding vector value in every sub-regions, is sweared according to object space voltage
Amount corresponding vector value in every sub-regions, determines inequality relation of the object space voltage vector in every sub-regions.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein root
According to equilibrium relationships and inequality relation, the step of determining the subregion where object reference vector, including：According to equilibrium relationships and
Inequality relation carries out regional code to subregion；The subregion where object reference vector is determined according to regional code.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiments of first aspect, wherein root
The step of regional code is carried out to subregion according to equilibrium relationships and inequality relation, including：Object space voltage vector is obtained to exist
The corresponding inequality relation of equilibrium relationships of each edge circle straight line position；When the inequality relation of acquisition is expressed as being more than
When zero inequality, determine that the boundary straight line of the corresponding subregion of inequality relation is identified as first identifier；When differing for acquisition
When formula relationship is expressed as minus inequality, determine that the boundary straight line of the corresponding subregion of inequality relation is identified as the second mark
Know；It is identified according to the boundary straight line of every sub-regions, regional code is carried out to every sub-regions, obtains the coding of every sub-regions
Numerical value.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiments of first aspect, wherein root
The step of identifying according to the boundary straight line of every sub-regions, regional code carried out to every sub-regions, including：It obtains every preset
The arrangement serial number of boundary straight line；The boundary straight line mark that each sub-regions are arranged according to the arrangement serial number of each edge circle straight line, obtains
To the identification code of each sub-regions；The identification code of each sub-regions is encoded according to pre-arranged code mode；Wherein, it presets and compiles
Code mode includes binary coding mode, decimal coded mode or hexadecimal code mode.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein root
The step of subregion where object reference vector is determined according to regional code, including：Obtain the corresponding target of object reference vector
Space voltage vector；Search regional code numerical value corresponding with the object space voltage vector obtained；According to the region found
Encoding value determines the subregion where object reference vector.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of first aspect, wherein looks into
The step of looking for regional code corresponding with the object space voltage vector obtained, including：The object space voltage searched and obtained
The corresponding boundary straight line mark of equilibrium relationships of vector；According to preset coding schedule, volume corresponding with boundary straight line mark is searched
Yardage value；Wherein, the correspondence of boundary straight line mark and encoding value is stored in coding schedule.
Second aspect, the embodiment of the present invention also provide a kind of area judgement unit of reference vector, including：Distribution map obtains
Module, the regular polygon distribution map for obtaining multiple space voltage vectors using space vector modulation technique；Region division mould
Each sector for regular polygon distribution map to be divided into multiple sectors, and is divided into multiple subregions by block；Relationship determines mould
Block, equilibrium relationships of the object space voltage vector in each edge circle straight line position for determining pre-acquiring, and really
Determine inequality relation of the object space voltage vector of pre-acquiring in every sub-regions；Area determination module, for according to etc.
Formula relationship and inequality relation determine the subregion where object reference vector.
The third aspect, an embodiment of the present invention provides a kind of electronic equipment, including：Processor and memory；On memory
It is stored with computer program, computer program is executed when being run by processor as the 6th kind of first aspect to first aspect can
Any one method that the embodiment of energy provides.
Fourth aspect, an embodiment of the present invention provides a kind of computer readable storage medium, computer readable storage mediums
On be stored with computer program, above-mentioned first aspect is executed when computer program is run by processor to the 6th kind of first aspect
Any one method that possible embodiment provides.
An embodiment of the present invention provides the region decision method, apparatus and electronic equipment of a kind of reference vector, using space
Vector modulation technique obtains the regular polygon distribution map of multiple space voltage vectors；Regular polygon distribution map is divided into multiple fans
Area, and each sector is divided into multiple subregions；The boundary straight line divided per sub-regions is obtained, determines the target of pre-acquiring
Space voltage vector each edge circle straight line position equilibrium relationships, and determine pre-acquiring object space voltage arrow
Measure the inequality relation in every sub-regions；According to equilibrium relationships and inequality relation, where determining object reference vector
Subregion.The sector of the distribution map of space vector is subdivided into multiple regions by this mode, and according to boundary straight line and space electricity
The equation and inequality relation for pressing vector, can more easily judge the region where reference vector, contribute to Digital Realization.
Other feature and advantage of the embodiment of the present invention will illustrate in the following description, alternatively, Partial Feature and excellent
Point can deduce from specification or unambiguously determine, or the above-mentioned technology by implementing the embodiment of the present invention can obtain
Know.
To enable the above objects, features, and advantages of the embodiment of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly,
And coordinate appended attached drawing, it is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows a kind of flow chart of the region decision method for reference vector that the embodiment of the present invention is provided；
Fig. 2 shows the three level space voltage vector distribution maps of one kind that the embodiment of the present invention is provided；
Fig. 3 shows the seed region distribution map that the embodiment of the present invention is provided；
Fig. 4 shows one kind that the embodiment of the present invention is providedαβFirst sector subregion distribution map under coordinate system；
Fig. 5 shows the flow chart of the region decision method for another reference vector that the embodiment of the present invention is provided；
Fig. 6 shows a kind of structure chart of the area judgement unit for reference vector that the embodiment of the present invention is provided；
Fig. 7 shows the structural schematic diagram for a kind of electronic equipment that the embodiment of the present invention is provided.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
In view of being needed in the region decision of reference vector by space voltage vector distribution map division region, and the prior art
When the region to reference vector judges, the method that realize region decision is more complicated, present embodiments provides one kind
The region decision method, apparatus and electronic equipment of reference vector can more easily judge reference vector region, below to this hair
Bright embodiment describes in detail.
A kind of flow chart of the region decision method of reference vector shown in Figure 1, this approach includes the following steps：
Step S102 obtains the regular polygon distribution map of multiple space voltage vectors using space vector modulation technique.
Regular polygon distribution map is divided into multiple sectors, and each sector is divided into multiple subregions by step S104；
Wherein, include multiple reference vectors in every sub-regions, each reference vector is synthesized by specified space voltage vector
Vector.
Specifically, nearest principle, which may be used, in specified space voltage vector chooses the basic arrow of nearest in subregion three
Amount.Such as in three level space voltage vector distribution maps, as shown in Fig. 2, wherein zero vector is located at the center of regular hexagon,
Other vectors regular hexagon with 60o for a unit, be divided into six sectors, while each sector can be divided into 6 sons again
Synthesized reference vector is all carried out in region in wherein any one subregion there are three immediate basic vector.
Step S106 obtains the boundary straight line divided per sub-regions, determines that the object space voltage vector of pre-acquiring exists
The equilibrium relationships of each edge circle straight line position, and determine the object space voltage vector of pre-acquiring in every sub-regions
Interior inequality relation.
Table 1
Step S108 determines the subregion where object reference vector according to equilibrium relationships and inequality relation.
The region decision method of above-mentioned reference vector provided in an embodiment of the present invention is drawn by space voltage vector distribution map
The sector divided and subregion, obtain the boundary straight line of every sub-regions, according to the object space voltage vector of pre-acquiring at every
The equilibrium relationships of boundary straight line position and the object space voltage vector of pre-acquiring differing in every sub-regions
Formula relationship determines the region where object reference vector, can more easily judge the region where reference vector.
For ease of understanding, one kind that the region decision method based on reference vector provided in this embodiment is given below is specific
Embodiment, the flow chart of the region decision method of another reference vector shown in Figure 5, this method include following step
Suddenly：
Step S502 obtains the regular polygon distribution map of multiple space voltage vectors using space vector modulation technique.
Regular polygon distribution map is divided into multiple sectors, and each sector is divided into multiple subregions by step S504；
Wherein, include multiple reference vectors in every sub-regions, each reference vector is synthesized by specified space voltage vector
Vector.
Specifically, in the subregion distribution map of three level space voltage vector distribution maps, regular hexagon is divided into 6
Sector, each sector are divided into 6 sub-regions；As shown in figure 3,36 sub-regions are shared, namely from subregion 1 to subregion
36。
Step S506 determines the object space voltage vector of pre-acquiring in the corresponding arrow of each edge circle straight line position
Magnitude determines object space electricity according to object space voltage vector in the corresponding vector value of each edge circle straight line position
Press vector in the equilibrium relationships of each edge circle straight line position.
Step S508 determines the object space voltage vector of the pre-acquiring corresponding vector value in every sub-regions, according to
Object space voltage vector corresponding vector value in every sub-regions determines object space voltage vector in every sub-regions
Inequality relation.
Step S510 determines that inequality relation corresponds to when the inequality relation of acquisition is expressed as the inequality more than zero
The boundary straight line of subregion be identified as first identifier.
Specifically, can the 0 and 1 of binary number be expressed as the mark of boundary straight line, first identifier can be indicated with 1.
Step S512 determines that inequality relation corresponds to when the inequality relation of acquisition is expressed as minus inequality
The boundary straight line of subregion be identified as second identifier.
0 in the second identifier binary system of boundary straight line can be indicated.
Step S514 obtains the arrangement serial number of preset each edge circle straight line.
In a particular application, such as in figure 3 boundary straight line title is indicated with letter A to L, can be obtained according to letter
The corresponding arrangement serial number of boundary straight line of A to L arrangements.
Step S516, the boundary straight line that each sub-regions are arranged according to the arrangement serial number of each edge circle straight line are identified, are obtained
The identification code of each sub-regions.
Specifically, each edge circle line correspondences have mark per sub-regions, such as to subregion 1, boundary straight line A to boundary
Straight line L has corresponding 0 or 1 mark, then according to each boundary straight line of the arrangement subregion 1 that puts in order of alphabetical A to L
Mark, obtains the identification code of subregion 1.The each edge circle straight line mark of same other subregions is arranged also according to said sequence.
Step S518 encodes the identification code of each sub-regions according to pre-arranged code mode；Wherein, pre-arranged code side
Formula includes binary coding mode, decimal coded mode or hexadecimal code mode.
Specifically, the identification code of each sub-regions can be made of the mark of binary representation, it can be by binary identification
Code is converted to decimal number, as shown in table 2：
Table 2
Letter A to L indicates corresponding boundary straight line A to boundary straight line L in table 2, and 1 to 36 indicate that subregion 1 arrives subregion 36.It compiles
Yardage value is the decimal number being converted to by transformational relation between system by binary number.
Step S520 obtains the corresponding object space voltage vector of object reference vector.
Specifically, according to object reference vector position, object space voltage vector at this time is determinedu α Withu β Value.
Step S522 searches boundary straight line corresponding with the object space voltage vector obtained and identifies.
Step S524 searches encoding value corresponding with boundary straight line mark according to preset coding schedule；Wherein, it encodes
The correspondence of boundary straight line mark and encoding value is stored in table.
Specifically, according to preset coding schedule, such as table 2, and according to the boundary straight line A, boundary straight line B and side of above-mentioned acquisition
The mark of boundary straight line G searches volume corresponding with 1,0,0 mark of boundary straight line A, boundary straight line B and boundary straight line G in table 2
Yardage value, it is 2510 that can find corresponding encoding value.
Step S526 determines the subregion where object reference vector according to the regional code numerical value found.
According to the above-mentioned encoding value 2510 found in table 2, determines that corresponding subregion is subregion 1, determine mesh
Subregion where marking reference vector is subregion 1.
In conclusion using the region decision method of above-mentioned reference vector provided in this embodiment, according to the mesh of pre-acquiring
The equilibrium relationships and inequality relation for marking space voltage vector, determine the region where object reference vector, can be more easily
Judge the region where reference vector.
Corresponding to the region decision method of above-mentioned reference vector, an embodiment of the present invention provides a kind of regions of reference vector
Judgment means, referring to a kind of structure diagram of the area judgement unit of reference vector shown in Fig. 6, which includes with lower die
Block：
Distribution map acquisition module 602, the regular polygon for obtaining multiple space voltage vectors using space vector modulation technique
Distribution map；
Region division module 604 for regular polygon distribution map to be divided into multiple sectors, and each sector is divided into multiple
Subregion；
Relationship determination module 606, for determining the object space voltage vector of pre-acquiring in each edge circle straight line position
Equilibrium relationships, and determine inequality relation of the object space voltage vector in every sub-regions of pre-acquiring；
Area determination module 608, for according to equilibrium relationships and inequality relation, determining the sub-district where object reference vector
Domain.
The area judgement unit of reference vector provided in an embodiment of the present invention, according to the object space voltage vector of pre-acquiring
Equilibrium relationships and inequality relation, determine the region where object reference vector, can more easily judge reference vector institute
Region.
The technique effect of the device that the present embodiment is provided, realization principle and generation is identical with previous embodiment, for letter
It describes, device embodiment part does not refer to place, can refer to corresponding contents in preceding method embodiment.
An embodiment of the present invention provides a kind of electronic equipment, the structural schematic diagram of a kind of electronic equipment shown in Figure 7,
The electronic equipment includes：Processor 70, memory 71, bus 72 and communication interface 73, the processor 70,73 and of communication interface
Memory 71 is connected by bus 72；Processor 70 is for executing the executable module stored in memory 71, such as computer
Program.
Wherein, memory 71 may include high-speed random access memory（RAM, Random Access Memory）,
It may further include non-labile memory（non-volatile memory）, a for example, at least magnetic disk storage.By extremely
A few communication interface 73（Can be wired or wireless）It realizes logical between the system network element and at least one other network element
Letter connection can use internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 72 can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, data
Bus, controlling bus etc..Only indicated with a four-headed arrow for ease of indicating, in Fig. 7, it is not intended that an only bus or
A type of bus.
Wherein, memory 71 is for storing program, and the processor 70 executes the journey after receiving and executing instruction
Sequence, the method performed by device that the stream process that aforementioned any embodiment of the embodiment of the present invention discloses defines can be applied to handle
In device 70, or realized by processor 70.
Processor 70 may be a kind of IC chip, the processing capacity with signal.During realization, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 70 or the instruction of software form.Above-mentioned
Processor 70 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network
Processor (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital Signal
Processing, abbreviation DSP), application-specific integrated circuit (Application Specific Integrated Circuit, referred to as
ASIC), field programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or other are programmable
Logical device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute in the embodiment of the present invention
Disclosed each method, step and logic diagram.General processor can be microprocessor or the processor can also be to appoint
What conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processing
Device executes completion, or in decoding processor hardware and software module combination execute completion.Software module can be located at
Machine memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register etc. are originally
In the storage medium of field maturation.The storage medium is located at memory 71, and processor 70 reads the information in memory 71, in conjunction with
Its hardware completes the step of above method.
The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored on computer readable storage medium
Computer program, when computer program is run by processor the step of the method for any one of execution previous embodiment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process can refer to the corresponding process in previous embodiment, and details are not described herein.
The region decision method, apparatus for the reference vector that the embodiment of the present invention is provided and the computer program of electronic equipment
Product, including the computer readable storage medium of program code is stored, the instruction that said program code includes can be used for executing
Method described in previous methods embodiment, specific implementation can be found in embodiment of the method, and details are not described herein.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment（Can be
People's computer, server or network equipment etc.）It performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory（ROM, Read-Only Memory）, arbitrary access deposits
Reservoir（RAM, Random Access Memory）, the various media that can store program code such as magnetic disc or CD.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of region decision method of reference vector, which is characterized in that including：
The regular polygon distribution map of multiple space voltage vectors is obtained using space vector modulation technique；
The regular polygon distribution map is divided into multiple sectors, and each sector is divided into multiple subregions；Wherein,
Include multiple reference vectors in each subregion, each reference vector is sweared by the specified space voltage
Measure the vector of synthesis；
The boundary straight line for dividing each subregion is obtained, determines the object space voltage vector of pre-acquiring on every side
The equilibrium relationships of boundary's straight line position, and determine the object space voltage vector of pre-acquiring in each sub-district
Inequality relation in domain；
According to the equilibrium relationships and the inequality relation, the subregion where object reference vector is determined.
2. the region decision method of reference vector according to claim 1, which is characterized in that the mesh of the determining pre-acquiring
Mark space voltage vector every boundary straight line position equilibrium relationships, and determine pre-acquiring the target
The step of inequality relation of the space voltage vector in each subregion, including：
The object space voltage vector of pre-acquiring is determined in the corresponding vector value of every boundary straight line position,
According to the object space voltage vector in the corresponding vector value of every boundary straight line position, the target is determined
Equilibrium relationships of the space voltage vector in every boundary straight line position；
The object space voltage vector of the pre-acquiring corresponding vector value in each subregion is determined, according to the mesh
Space voltage vector corresponding vector value in each subregion is marked, determines the object space voltage vector in each institute
State the inequality relation in subregion.
3. the region decision method of reference vector according to claim 1, which is characterized in that described to be closed according to the equation
System and the inequality relation, the step of determining the subregion where object reference vector, including：
According to the equilibrium relationships and the inequality relation, regional code is carried out to the subregion；
The subregion where object reference vector is determined according to the regional code.
4. the region decision method of reference vector according to claim 3, which is characterized in that described to be closed according to the equation
The step of system and the inequality relation carry out regional code to the subregion, including：
The equilibrium relationships that the object space voltage vector is obtained in every boundary straight line position corresponding differ
Formula relationship；
When the inequality relation of acquisition is expressed as the inequality more than zero, determine that the inequality relation is corresponding described
The boundary straight line of subregion is identified as first identifier；
When the inequality relation of acquisition is expressed as minus inequality, determine that the inequality relation is corresponding described
The boundary straight line of subregion is identified as second identifier；
It is identified according to the boundary straight line of each subregion, regional code is carried out to each subregion, obtains each institute
State the encoding value of subregion.
5. the region decision method of reference vector according to claim 4, which is characterized in that each son of the basis
The boundary straight line in region identifies, the step of carrying out regional code to each subregion, including：
Obtain the arrangement serial number of the preset every boundary straight line；
The boundary straight line mark that each subregion is arranged according to the arrangement serial number of boundary straight line described in every, obtains each institute
State the identification code of subregion；
The identification code of each subregion is encoded according to pre-arranged code mode；Wherein, the pre-arranged code mode packet
Include binary coding mode, decimal coded mode or hexadecimal code mode.
6. the region decision method of reference vector according to claim 3, which is characterized in that described to be compiled according to the region
Code determines the step of subregion where object reference vector, including：
Obtain the corresponding object space voltage vector of the object reference vector；
Search regional code numerical value corresponding with the object space voltage vector obtained；
According to the regional code numerical value found, the subregion where the object reference vector is determined.
7. the region decision method of reference vector according to claim 6, which is characterized in that the lookup and the institute obtained
The step of stating the corresponding regional code of object space voltage vector, including：
Boundary straight line corresponding with the equilibrium relationships of object space voltage vector obtained is searched to identify；
According to preset coding schedule, encoding value corresponding with boundary straight line mark is searched；Wherein, it is deposited in the coding schedule
Contain the correspondence of boundary straight line mark and encoding value.
8. a kind of area judgement unit of reference vector, which is characterized in that including：
Distribution map acquisition module, the regular polygon for being obtained multiple space voltage vectors using space vector modulation technique are distributed
Figure；
Region division module for the regular polygon distribution map to be divided into multiple sectors, and each sector is divided
For multiple subregions；
Relationship determination module, for determining the object space voltage vector of pre-acquiring in every boundary straight line position
Equilibrium relationships, and determine that inequality of the object space voltage vector in each subregion of pre-acquiring closes
System；
Area determination module, for where according to the equilibrium relationships and the inequality relation, determining object reference vector
Subregion.
9. a kind of electronic equipment, which is characterized in that including processor and memory；
Computer program is stored on the memory, the computer program executes such as right when being run by the processor
It is required that 1 to 7 any one of them method.
10. a kind of computer readable storage medium, computer program, feature are stored on the computer readable storage medium
It is, 1 to 7 any one of them method of the claims is executed when the computer program is run by processor.
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| CN111211722A (en) * | 2020-01-20 | 2020-05-29 | 中国科学院电工研究所 | Space voltage vector modulation method, device and storage medium |
| CN111737508A (en) * | 2020-06-23 | 2020-10-02 | 北京四维图新科技股份有限公司 | Map vector extraction method, device, equipment and storage medium |
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| CN111211722A (en) * | 2020-01-20 | 2020-05-29 | 中国科学院电工研究所 | Space voltage vector modulation method, device and storage medium |
| CN111737508A (en) * | 2020-06-23 | 2020-10-02 | 北京四维图新科技股份有限公司 | Map vector extraction method, device, equipment and storage medium |
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