CN108448606A - ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures - Google Patents
± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The present invention relates to one kind ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures, which is characterized in that includes the following steps：1) according to the operation principle of DC transmission system, the influence factor of main electrical scheme topological structure is determined；2) hierarchical relationship for determining each influence factor establishes the Recurison order hierarchy index model of overall merit main electrical scheme topological structure；3) weight of every first class index and two-level index in Recurison order hierarchy index model is set；4) fraction levels of every two-level index in Recurison order hierarchy index model are set；5) fraction levels based on setting obtain the score of every two-level index in all main electrical scheme topological structures to be assessed according to the operation history data and experience of DC transmission system；6) point-score is obtained using stratified calculation, the composite score of each main electrical scheme topological structure to be assessed is calculated, the assessment for completing main electrical scheme topological structure is compared by composite score, the method can be widely used in direct current transportation field.
Description
Technical field
The present invention relates to one kind ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures, belong to direct current
Field of power transmission.
Background technology
EHV transmission has large capacity, remote, low-loss and saves the inherent characteristic taken up an area, EHV transmission method
Using that can realize larger range of most optimum distribution of resources, Efficient Development and the utilization of Chinese energy are pushed, improves atmospheric environment.
In large capacity HVDC transmission system, converter substation scheme's scheme is for entire direct current main equipment development and engineering construction
AC power loss caused by difficulty, reliability level, converter fault etc. all has significant impact and overall technology solution
The certainly main contents of scheme and technology path.The key problem of converter substation scheme's scheme is to determine the main electrical scheme topology of current conversion station
The concrete configuration of structure and main alternating current-direct current equipment based on the topological structure needs the feasibility from technical solution, engineering
Reliability and economy etc. carry out research demonstration.Previous DC transmission engineering is often according to device fabrication ability and operation
Empirically determined main electrical scheme topological structure, conventional 500kV DC engineerings often use single 12-pulse structure, the serial number of thyristor
Seldom, the through-current capability of converter valve is also met the requirements, and rule of thumb just directly determines main electrical scheme topological structure, 800kV direct current works
Journey has fully used for reference the operating experience of 500kV DC engineerings, directly determines the main electrical scheme topology knot using two 12 pulse series
Structure, each 12 pulsating volage is 400kV, its single 12-pulse voltage in this way less than conventional 500kV engineerings, through-current capability according to
Converter valve through-current capability determines, need not carry out complicated calculating and assessment.
± 1100kV extra-high voltage direct-current transmission engineerings are that voltage class highest, transmission capacity are maximum in the world at present, convey
Distance is farthest and the state-of-the-art UHV Transmission Engineering of technical merit, most basic convertor unit are 12 pulse conversion lists
Member realizes the raised purpose of DC voltage, the quantity of 12 pulse conversion units by single or multiple 12 pulse conversion units
Hauled weight, operational reliability, the quantity etc. of flexibility and standby redundancy that the change of current connected to it becomes are directly influenced, so
Determine that direct current transportation main electrical scheme topological structure is most important input condition in DC transmission engineering.However, not having in the prior art
There is the method that pair main electrical scheme topological structure of ± 1100kV extra-high voltage direct-current transmission engineerings is assessed, therefore, it is necessary to a kind of visitors
The method of sight assesses main electrical scheme topological structure, and then can obtain optimal main electrical scheme topological structure.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide one kind can objective evaluation main electrical scheme topological structure, and then
To ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure the appraisal procedures of optimal main electrical scheme topological structure.
To achieve the above object, the present invention takes following technical scheme：One kind ± 1100kV extra-high voltage direct-current engineering masters connect
Line topological structure appraisal procedure, which is characterized in that include the following steps：
Step 1)：According to the operation principle of DC transmission system, the influence factor of main electrical scheme topological structure is determined；Step
2)：The hierarchical relationship for determining each influence factor establishes the Recurison order hierarchy index model of overall merit main electrical scheme topological structure；Step
3)：Set the weight of every first class index and two-level index in Recurison order hierarchy index model；Step 4)：Set Recurison order hierarchy index
The fraction levels of every two-level index in model；Step 5)：Fraction levels based on setting, according to the operation of DC transmission system
Historical data and experience obtain the score of every two-level index in all main electrical scheme topological structures to be assessed；Step 6)：Using point
Layer weight score method, is calculated the composite score F (k) of each main electrical scheme topological structure to be assessed, is compared by composite score
The assessment of main electrical scheme topological structure is completed, wherein：
Wherein, F (k) indicates the composite score of kth kind main electrical scheme topological structure to be assessed；N indicates the sum of first class index；
wi(k) weight of i-th of first class index in kth kind main electrical scheme topological structure to be assessed is indicated；fi(k) kth kind master to be assessed is indicated
The score of i-th of first class index in wiring topological structure, and the score of the first class index is by this kind of main electrical scheme topology to be assessed
The weight of corresponding two-level index is weighted read group total with reciprocal fraction and obtains in structure.
Further, the influence factor of main electrical scheme topological structure includes reliable to entire DC transmission system in the step 1)
Property influence factor, to the influence factor of AC system power, to the influence factor of control protection complexity, to device fabrication
The influence factor of cost, the influence factor to current conversion station construction cost and the influence factor, failure rate, event to straight-flow system operation
Barrier electric quantity loss, converter valve manufacturing cost, the change of current become manufacturing cost, equipment and spare part manufacturing cost, build transport manufacturing cost, valve
The Room becomes the spirit of Square Construction cost, DC fields wiring complexity, exchange side layer-specific access complexity, the method for operation with the change of current
Activity and operating experience.
Further, the hierarchical relationship that each influence factor is determined in the step 2), establishes overall merit main electrical scheme topology knot
The Recurison order hierarchy index model of structure, detailed process are：2.1) correlation between each influence factor is analyzed, and is determined each
The hierarchical relationship of influence factor；2.2) Recurison order hierarchy index mould is established according to determining hierarchical relationship using analytic hierarchy process (AHP)
Type, including：General objective layer, the i.e. influence factor of main electrical scheme topological structure；Rule layer includes several first class index, i.e.,：To entire
The influence factor of DC transmission system reliability, the influence factor to AC system power, the shadow to controlling protection complexity
Ring factor, the influence factor to equipment manufacturing costs, the influence factor to current conversion station construction cost and to straight-flow system operation
Influence factor；Sub- rule layer includes several two-level index corresponding with corresponding first class index, i.e.,：It can to entire DC transmission system
Two-level index by property influence factor includes failure rate and failure electric quantity loss, is referred to the two level of equipment manufacturing costs influence factor
Mark includes converter valve manufacturing cost, change of current change manufacturing cost, equipment and spare part manufacturing cost and builds transport manufacturing cost, to the change of current
The two-level index of construction cost of standing influence factor includes that the valve Room becomes Square Construction cost, DC fields complexity with the change of current and exchanges
Side layer-specific access complexity, the two-level index to straight-flow system influence on system operation factor include the flexibility and operation of the method for operation
Experience.
Further, the weight of every first class index in Recurison order hierarchy index model, detailed process are set in the step 3)
For：According to each influence factor to the significance level of extra-high voltage direct-current engineering feasibility and Technical Economy, based on total weight and it is
1, significant effects factor weight is 3 times of normal effect factor weight, and more important influence factor weight is normal effect factor
2 times of principle of weight sets the weight of every first class index, wherein significant effects factor is to current conversion station construction cost
Influence factor, more important influence factor be to the influence factor of equipment manufacturing costs and to entire DC transmission system reliability
Influence factor, to the influence factor of AC system power, to the influence factor of control protection complexity and to straight-flow system
The influence factor of operation is normal effect factor, wherein the weight of every first class index is in Recurison order hierarchy index model：Exchange
The influence factor weight of stream station construction cost is 0.3, influence factor to equipment manufacturing costs and to entire DC transmission system
The influence factor weight of reliability is 0.2, the influence factor to AC system power, the influence to control protection complexity
Factor and the influence factor weight run to straight-flow system are 0.1.
Further, based on total weight and for 1 principle, be set separately in the step 3) in Recurison order hierarchy index model each
The weight of two-level index is：The weight of failure rate is 0.5, and the weight of failure electric quantity loss is 0.5；Converter valve manufacturing cost
Weight is 0.3, and the weight that the change of current becomes manufacturing cost is 0.3, and the weight of equipment and spare part cost is 0.2, builds transport manufacturing cost
Weight be 0.2；The valve Room and the change of current become the weight of Square Construction cost as 0.4, and the weight of DC fields wiring complexity is
0.2, the weight of exchange side layer-specific access complexity is 0.4；The weight of the flexibility of the method for operation is 0.6, operating experience
Weight is 0.4.
Further, the fraction levels of every two-level index in Recurison order hierarchy index model are set in the step 4), specifically
Process is：Using hundred-mark system method, every two-level index is divided into three grades, including best grade, the two of the grade
Grade index score is 100 points；The two-level index score of preferable grade, the grade is 80 points；The two level of general grade, the grade refers to
It is 60 points to mark score.
The invention adopts the above technical scheme, which has the following advantages：Traditional qualitative determining main electrical scheme topology knot
The method of structure is affected by personal experience, hardly results in optimal topological structure, each main electrical scheme topological structure has excellent lack
Point, traditional qualitative method are difficult the advantage and disadvantage of each main electrical scheme topological structure of quantification, to which the master for hardly resulting in optimal connects
Line topological structure, the present invention establish the Recurison order hierarchy index model of overall merit main electrical scheme topological structure using analytic hierarchy process (AHP),
Using stratified calculation obtain point-score in Recurison order hierarchy index model first class index and two-level index carry out quantitative evaluation, by by
The final score of main electrical scheme topological structure to be assessed is obtained after layer weighted sum, and then the highest main electrical scheme of score can be chosen and opened up
It is optimal case to flutter structure, largely overcomes the subjectivity and randomness of experience method, makes main electrical scheme topological structure
Selection is more rationally more scientific, can be widely applied in direct current transportation field.
Description of the drawings
Fig. 1 is the flow chart of the appraisal procedure of main electrical scheme topological structure of the present invention；
Fig. 2 is the structural schematic diagram of Recurison order hierarchy index model of the present invention；
Fig. 3 is the structural schematic diagram of three schemes in the embodiment of the present invention, wherein Fig. 3 (a) is that the main electrical scheme of scheme 1 is opened up
Structure is flutterred, Fig. 3 (b) is the main electrical scheme topological structure of scheme 2, and Fig. 3 (c) is the main electrical scheme topological structure of scheme 3；
Fig. 4 is the practical application structural schematic diagram of main electrical scheme topological structure of the present invention.
Specific implementation mode
Come to carry out detailed description to the present invention below in conjunction with attached drawing.It should be appreciated, however, that attached drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in Figure 1, ± 1100kV extra-high voltage direct-currents engineering main electrical scheme topological structure appraisal procedure provided by the invention, packet
Include following steps：
1) according to the operation principle of DC transmission system, the major influence factors of main electrical scheme topological structure are determined.
Present invention determine that the major influence factors of main electrical scheme topological structure include to entire DC transmission system reliability
Influence factor, the influence factor to the influence factor of AC system power, to control protection complexity, to device fabrication at
This influence factor, the influence factor to current conversion station construction cost and the influence factor, failure rate, failure to straight-flow system operation
Electric quantity loss, converter valve manufacturing cost, the change of current become manufacturing cost, equipment and spare part manufacturing cost, build transport manufacturing cost, the valve Room
With the change of current become Square Construction cost, DC fields complexity, exchange side layer-specific access complexity, the method for operation flexibility and
Operating experience.
2) hierarchical relationship for determining each influence factor establishes the Recurison order hierarchy index mould of overall merit main electrical scheme topological structure
Type, detailed process are：
2.1) correlation between each influence factor is analyzed, and determines the hierarchical relationship of each influence factor, wherein
The analysis of correlation is the prior art between each influence factor, can be analyzed according to actual conditions, this will not be repeated here.
Each mother's influence factor should be made of several sub- influence factors, between each sub- influence factor between female influence factor
Should all have a certain impact relationship, therefore, the relationship that can influence each other between the influence factor of main electrical scheme topological structure into
Row analysis, and then can determine the hierarchical relationship of each influence factor.
2.2) passing for overall merit main electrical scheme topological structure is established according to determining hierarchical relationship using analytic hierarchy process (AHP)
Stratum time index model, wherein analytic hierarchy process (AHP) is the prior art, and this will not be repeated here.
It is passed as shown in Fig. 2, each influence factor is divided into general objective layer, rule layer and sub- rule layer, foundation from top to down
Stratum time index model：
General objective layer, i.e.,：The influence factor of main electrical scheme topological structure；
Rule layer includes several first class index, i.e.,：To the influence factor of entire DC transmission system reliability, it is to exchange
Unite power influence factor, to control protection complexity influence factor, to the influence factor of equipment manufacturing costs, to the change of current
The influence factor for construction cost of standing and the influence factor that straight-flow system is run；
Sub- rule layer includes several two-level index corresponding with corresponding first class index, i.e.,：It can to entire DC transmission system
Two-level index by property influence factor includes failure rate and failure electric quantity loss, is referred to the two level of equipment manufacturing costs influence factor
Mark includes converter valve manufacturing cost, change of current change manufacturing cost, equipment and spare part manufacturing cost and builds transport manufacturing cost, to the change of current
The two-level index of construction cost of standing influence factor includes that the valve Room becomes Square Construction cost, DC fields complexity with the change of current and exchanges
Side layer-specific access complexity, the two-level index to straight-flow system influence on system operation factor include the flexibility and operation of the method for operation
Experience.
3) weight of every first class index and two-level index in Recurison order hierarchy index model is set.
According to each influence factor to the significance level of extra-high voltage direct-current engineering feasibility and Technical Economy, it is based on total weight
Be 1, significant effects factor weight is 3 times of normal effect factor weight, and more important influence factor weight is normal effect
2 times of principle of factor weight sets the weight of every first class index and two-level index.
Due to being to influence extra-high voltage direct-current engineering decision and technology on the influence factor of current conversion station construction cost in rule layer
The most important influence factor of economy, directly determines the feasibility of extra-high voltage direct-current engineering, it is thus determined that its weight highest, is
0.3, after extra-high voltage direct-current Project, influence factor to equipment manufacturing costs and to entire DC transmission system reliability
Influence factor become most important influence factor, be 0.2 it is thus determined that its weight time is high, it is every for other in rule layer
Influence factor can be solved by technical measures, it is thus determined that its weight is common, it is 0.1.
Based on total weight and for 1 principle, in sub- rule layer the weight of each two-level index also according to it in extra-high voltage direct-current
Significance level in engineering is distinguish determination, and this will not be repeated here.
The weight of the every first class index and two-level index that finally set is as shown in table 1 below：
Table 1：The weight of every first class index and two-level index in Recurison order hierarchy index model
4) fraction levels of every two-level index in Recurison order hierarchy index model are set.
The present invention uses hundred-mark system method, and every two-level index is divided into three grades, including best grade, such
The two-level index score of grade is 100 points；The two-level index score of preferable grade, the grade is 80 points；General grade, the grade
Two-level index score is 60 points.
5) fraction levels based on setting, according to the operation history data and experience of DC transmission system, acquisition is needed
Assess the score of every two-level index in main electrical scheme topological structure.
6) point-score is obtained using stratified calculation, the composite score F (k) of each main electrical scheme topological structure to be assessed is calculated,
The assessment for completing main electrical scheme topological structure is compared by composite score, wherein：
Wherein, F (k) indicates the composite score of kth kind main electrical scheme topological structure to be assessed；N indicates the sum of first class index；
wi(k) weight of i-th of first class index in kth kind main electrical scheme topological structure to be assessed is indicated；fi(k) kth kind master to be assessed is indicated
The score of i-th of first class index in wiring topological structure, and the score of the first class index is by this kind of main electrical scheme topology to be assessed
The weight of corresponding two-level index is weighted read group total with reciprocal fraction and obtains in structure.
Since ± 1100kV extra-high voltage direct-current engineering powers are huge, all access 500kV AC networks and be difficult to dissolve, usually
Receiving end needs in layer-specific access 500kV or 1000kV AC network, and to reduce the manufacture difficulty of equipment, develop skill economy,
Usual low side pulse conversion devices direct current forces down, and exchange side can access higher 1000kV AC networks, high-end pulse conversion devices
Due to DC voltage height, exchange side should access lower 500kV AC networks, below by the main electrical scheme topology knot of 3 kinds of schemes
Structure illustrates the appraisal procedure of main electrical scheme topological structure of the present invention：
Scheme 1 is a kind of main electrical scheme topological structure of double 12 pulsation, as shown in Fig. 3 (a), except every one 12 pulse conversion unit
Voltage it is different outer, the method for operation, current conversion station arrangement etc. are identical as traditional 800kV DC engineerings.
Scheme 2 is a kind of main electrical scheme topological structure that 3 12 pulsation is divided equally, straight with traditional 800kV as shown in Fig. 3 (b)
Stream engineering is compared, and the voltage of every one 12 pulse conversion unit is slightly below 400kV, but the voltage of three 12 pulse conversion units is complete
Exactly the same (but voltage-to-ground is different), the method for operation is more flexible, any one and two 12 pulse conversion units can combine
Operation, but converter power transformer quantity needs increase by 1/2, and the arrangement of converter power transformer and occupation of land and routine 800kV DC engineerings
It is entirely different.
Scheme 3 is also a kind of main electrical scheme topological structure of 3 12 pulsation, as shown in Fig. 3 (c), but underlying two 12
Pulse conversion unit is identical with traditional 800kV DC engineerings, and the ceiling voltage of 12 pulse conversion units is only 300kV,
This main electrical scheme topological structure advantage is underlying two 12 pulse conversion unit can use for reference traditional 800kV direct current works completely
The equipment and operating experience of journey, and it is less than 400kV, place capacity and terminal positioned at the voltage of 12 pulse conversion units of the top
Between dielectric level relative reduction so that manufacture difficulty substantially reduces, but since the voltage of 3 12 pulse conversion units differs, spare unit
Spare part is not general, and parameter is also different between arrangement terminal, and compared to scheme 2, device fabrication and the method for operation are more complicated.
The comparison of three kinds of scheme main electrical scheme topological structures is as shown in table 2 below：
Table 2：The comparison of three kinds of scheme main electrical scheme topological structures
Appraisal procedure using the present invention assesses the main electrical scheme topological structure of above-mentioned three kinds of schemes, finally obtained
The composite score of each scheme is as shown in table 3 below：
Table 3：The composite score of each scheme
As can be seen from Table 3, the main electrical scheme topological structure composite score highest of scheme 1, assessment result are " preferable "；Side
The main electrical scheme topological structure composite score of case 2 and scheme 3 is below 80 points, and assessment result is " general ", it can be seen that, scheme 1
Main electrical scheme topological structure be substantially better than other schemes, can recommend in ± 1100kV extra-high voltage direct-current engineerings, such as Fig. 4 institutes
Show.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type and manufacture craft etc. are all
It can be varied from, every equivalents carried out based on the technical solution of the present invention and improvement should not exclude
Except protection scope of the present invention.
Claims (6)
1. one kind ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures, which is characterized in that including following step
Suddenly：
Step 1)：According to the operation principle of DC transmission system, the influence factor of main electrical scheme topological structure is determined；
Step 2)：The hierarchical relationship for determining each influence factor establishes the Recurison order hierarchy index of overall merit main electrical scheme topological structure
Model；
Step 3)：Set the weight of every first class index and two-level index in Recurison order hierarchy index model；
Step 4)：Set the fraction levels of every two-level index in Recurison order hierarchy index model；
Step 5)：Fraction levels based on setting, according to the operation history data and experience of DC transmission system, acquisition is needed
Assess the score of every two-level index in main electrical scheme topological structure；
Step 6)：Point-score is obtained using stratified calculation, the composite score F (k) of each main electrical scheme topological structure to be assessed is calculated,
The assessment for completing main electrical scheme topological structure is compared by composite score, wherein：
Wherein, F (k) indicates the composite score of kth kind main electrical scheme topological structure to be assessed；N indicates the sum of first class index；wi(k)
Indicate the weight of i-th of first class index in kth kind main electrical scheme topological structure to be assessed；fi(k) kth kind main electrical scheme to be assessed is indicated
The score of i-th of first class index in topological structure, and the score of the first class index is by this kind of main electrical scheme topological structure to be assessed
In the weight of corresponding two-level index be weighted read group total with reciprocal fraction and obtain.
2. one kind ± 1100kV extra-high voltage direct-currents engineering main electrical scheme topological structure appraisal procedure as described in claim 1, special
Sign is that the influence factor of main electrical scheme topological structure includes the influence to entire DC transmission system reliability in the step 1)
Factor, to the influence factor of AC system power, to the influence factor of control protection complexity, to the shadow of equipment manufacturing costs
The factor of sound, the influence factor to current conversion station construction cost and the influence factor, failure rate, failure electricity to straight-flow system operation are damaged
Mistake, converter valve manufacturing cost, the change of current become manufacturing cost, equipment and spare part manufacturing cost, build transport manufacturing cost, the valve Room and the change of current
Become Square Construction cost, DC fields wiring complexity, exchange side layer-specific access complexity, the flexibility of the method for operation and fortune
It passes through and tests.
3. one kind ± 1100kV extra-high voltage direct-currents engineering main electrical scheme topological structure appraisal procedure as claimed in claim 2, special
Sign is, the hierarchical relationship of each influence factor is determined in the step 2), that establishes overall merit main electrical scheme topological structure passs rank
Level index model, detailed process are：
2.1) correlation between each influence factor is analyzed, and determines the hierarchical relationship of each influence factor；
2.2) Recurison order hierarchy index model is established according to determining hierarchical relationship using analytic hierarchy process (AHP), including：
General objective layer, the i.e. influence factor of main electrical scheme topological structure；
Rule layer includes several first class index, i.e.,：To the influence factor of entire DC transmission system reliability, to AC system work(
The influence factor of rate, to the influence factor of control protection complexity, to the influence factor of equipment manufacturing costs, built to current conversion station
The influence factor for being set as this influence factor and straight-flow system being run；
Sub- rule layer includes several two-level index corresponding with corresponding first class index, i.e.,：To entire DC transmission system reliability
The two-level index of influence factor includes failure rate and failure electric quantity loss, to the two-level index packet of equipment manufacturing costs influence factor
It includes converter valve manufacturing cost, change of current change manufacturing cost, equipment and spare part manufacturing cost and builds transport manufacturing cost, current conversion station is built
If the two-level index of cost impact factor includes the valve Room becomes Square Construction cost, DC fields complexity and exchange side point with the change of current
Layer access complexity, the two-level index to straight-flow system influence on system operation factor include that the flexibility of the method for operation and operation pass through
It tests.
4. one kind ± 1100kV extra-high voltage direct-currents engineering main electrical scheme topological structure appraisal procedure as claimed in claim 3, special
Sign is, the weight of every first class index in Recurison order hierarchy index model is set in the step 3), and detailed process is：
According to each influence factor to the significance level of extra-high voltage direct-current engineering feasibility and Technical Economy, based on total weight and it is
1, significant effects factor weight is 3 times of normal effect factor weight, and more important influence factor weight is normal effect factor
2 times of principle of weight sets the weight of every first class index, wherein significant effects factor is to current conversion station construction cost
Influence factor, more important influence factor be to the influence factor of equipment manufacturing costs and to entire DC transmission system reliability
Influence factor, to the influence factor of AC system power, to the influence factor of control protection complexity and to straight-flow system
The influence factor of operation is normal effect factor, wherein the weight of every first class index is in Recurison order hierarchy index model：
It is 0.3 to the influence factor weight of current conversion station construction cost, influence factor to equipment manufacturing costs and to entire direct current
The influence factor weight of reliability of transmission system is 0.2, to the influence factor of AC system power, protects complicated journey to control
The influence factor of degree and the influence factor weight run to straight-flow system are 0.1.
5. one kind ± 1100kV extra-high voltage direct-currents engineering main electrical scheme topological structure appraisal procedure as described in claim 1, special
Sign is, based on total weight and for 1 principle, every two level is set separately in the step 3) in Recurison order hierarchy index model and refers to
Target weight is：
The weight of failure rate is 0.5, and the weight of failure electric quantity loss is 0.5；
The weight of converter valve manufacturing cost is 0.3, and the change of current becomes the weight of manufacturing cost as 0.3, and the weight of equipment and spare part cost is
0.2, the weight for building transport manufacturing cost is 0.2；
The weight that the valve Room and the change of current become Square Construction cost is 0.4, and the weight of DC fields wiring complexity is 0.2, exchange side
The weight of layer-specific access complexity is 0.4；
The weight of the flexibility of the method for operation is 0.6, and the weight of operating experience is 0.4.
6. one kind ± 1100kV extra-high voltage direct-currents engineering main electrical scheme topological structure appraisal procedure as described in claim 1, special
Sign is, the fraction levels of every two-level index in Recurison order hierarchy index model are set in the step 4), and detailed process is：It adopts
With hundred-mark system method, every two-level index is divided into three grades, including best grade, the two-level index score of the grade
It is 100 points；The two-level index score of preferable grade, the grade is 80 points；The two-level index score of general grade, the grade is 60
Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310385.XA CN108448606A (en) | 2018-04-09 | 2018-04-09 | ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310385.XA CN108448606A (en) | 2018-04-09 | 2018-04-09 | ± 1100kV extra-high voltage direct-current engineering main electrical scheme topological structure appraisal procedures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108847025A (en) * | 2018-08-28 | 2018-11-20 | 电子科技大学 | A kind of traffic congestion determination method |
| CN112713606A (en) * | 2020-12-22 | 2021-04-27 | 华中科技大学 | Method and system for determining optimal topology of LCC-MMC hybrid direct-current power transmission system in given scene |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847025A (en) * | 2018-08-28 | 2018-11-20 | 电子科技大学 | A kind of traffic congestion determination method |
| CN112713606A (en) * | 2020-12-22 | 2021-04-27 | 华中科技大学 | Method and system for determining optimal topology of LCC-MMC hybrid direct-current power transmission system in given scene |
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Application publication date: 20180824 |