CN106356896A - Method and system for forming offshore wind plant integration scheme - Google Patents
Method and system for forming offshore wind plant integration scheme Download PDFInfo
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- CN106356896A CN106356896A CN201610951751.0A CN201610951751A CN106356896A CN 106356896 A CN106356896 A CN 106356896A CN 201610951751 A CN201610951751 A CN 201610951751A CN 106356896 A CN106356896 A CN 106356896A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000010354 integration Effects 0.000 title abstract 12
- 230000005684 electric field Effects 0.000 claims description 156
- 238000013461 design Methods 0.000 claims description 22
- 230000007257 malfunction Effects 0.000 claims description 20
- 238000010248 power generation Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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Classifications
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- H02J3/386—
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The invention relates to a method and system for forming an offshore wind plant integration scheme. The method comprises the following steps: acquiring target power grid parameters, and generating an offshore wind plant integration scheme according to the target power grid parameters; acquiring a technical index after the offshore wind plant power in each offshore wind plant integration scheme is integrated into a target power grid; designing a topological structure and equipment reliability parameters according to the offshore wind plant integration scheme having the technical index meeting the requirement of a preset technical index, and calculating an economic index corresponding to the offshore wind plant integration scheme according to the topological structure and equipment reliability parameters of an offshore wind plant; comparing corresponding offshore wind plant integration schemes according to the economic index to acquire an optimized offshore wind plant integration scheme, and outputting; evaluating the technical index and economic index of each offshore integration scheme to acquire an optimized offshore wind plant integration scheme. Therefore, the offshore wind plant integration scheme has optimized investment cost, and the integration cost for an offshore wind plant can be reduced.
Description
Technical field
The present invention relates to electric power network technical field, more particularly to a kind of marine wind electric field access scheme forming method and
System.
Background technology
Wind-power electricity generation is a kind of generation mode with fastest developing speed in current renewable energy power generation technology.In recent years, the world
Investment in terms of wind-power electricity generation equipment manufacturing and power construction for the rapid countries and regions of economically developed or economic development keeps
At a relatively high growth rate.
Compared with land wind energy turbine set, it is excellent and do not account for the advantages such as land resource, to China that marine wind electric field has wind-resources
For, the construction of offshore wind farm also has another prominent superiority.The load center of China is concentrated mainly on economically developed, consumption
The big maritime provinces of electricity, and land wind energy resources is then mainly in the west area away from load center.Land wind-powered electricity generation on a large scale
Exploitation face technology and the economic constraints of long distance powedr transmission.And offshore wind farm then can be directly accessed load center on-site elimination,
For leading to local power supply load center less and less electrical network because of land used and environmental protection pressure, the addition of offshore wind farm is undoubtedly
It is favorably improved the enabling capabilities of its local power supply.
At sea at the beginning of wind field design, need to determine that multiple feasible programs of marine wind electric field can design to marine wind electric field
And finally overall efficiency produces impact, so how different marine wind electric field access schemes are formulated evaluating and selection standard, right
The cost of access reducing marine wind electric field is significant.
Content of the invention
Based on this it is necessary to be directed to the problems referred to above, provide a kind of sea turn of the cost of access reducing marine wind electric field
Electric field access scheme forming method and system.
A kind of marine wind electric field access scheme forming method, comprises the following steps:
Obtain target grid parameter, and multiple marine wind electric field access schemes are generated according to described target grid parameter；
Obtain marine wind electric field power in each described marine wind electric field access scheme and access the technical finger after target grid
Mark；
Technical index according to obtaining meets the marine wind electric field access scheme presetting technical index request, design sea
The topological structure of upper wind energy turbine set and equipment dependability parameter, and the topological structure according to described marine wind electric field and equipment dependability
Parameter is calculated the economic index of corresponding marine wind electric field access scheme；
According to described economic index, corresponding marine wind electric field access scheme is compared, obtains optimum offshore wind farm
Field access scheme simultaneously exports.
A kind of marine wind electric field access scheme forms system, comprising:
Access scheme generation module, for obtaining target grid parameter, and generates multiple according to described target grid parameter
Marine wind electric field access scheme；
Technical index selection module, connects for obtaining marine wind electric field power in each described marine wind electric field access scheme
Enter the technical index after target grid；
Economic index computing module, for meeting, according to the technical index obtaining, the sea presetting technical index request
Upper wind energy turbine set access scheme, the topological structure of design marine wind electric field and equipment dependability parameter, and according to described offshore wind farm
Topological structure and equipment dependability parameter be calculated the economic index of corresponding marine wind electric field access scheme；
Optimal case output module, for comparing to corresponding marine wind electric field access scheme according to described economic index
Relatively, obtain optimum marine wind electric field access scheme and export.
Above-mentioned marine wind electric field access scheme forming method and system, obtain target grid parameter, and according to target grid
Parameter generates multiple marine wind electric field access schemes.Obtain marine wind electric field power in each marine wind electric field access scheme and access mesh
Technical index after mark electrical network.The marine wind electric field that technical index according to obtaining meets default technical index request connects
Enter scheme, the topological structure of design marine wind electric field and equipment dependability parameter, and the topology knot according to described marine wind electric field
Structure and equipment dependability parameter are calculated the economic index of corresponding marine wind electric field access scheme.According to economic index pair
Corresponding marine wind electric field access scheme is compared, and obtains optimum marine wind electric field access scheme and exports.By to each sea
Upper wind energy turbine set access scheme carries out technical index and economical index evaluation, thus obtaining optimum marine wind electric field access side
Case, can provide effective instrument for the access network system design in marine wind electric field Design Fundamentals stage, make marine wind electric field
Access system investment cost is optimum, reduces the cost of access of marine wind electric field.
Brief description
Fig. 1 is the flow chart of marine wind electric field access scheme forming method in an embodiment；
Fig. 2 is the structure chart that in an embodiment, marine wind electric field access scheme forms system.
Specific embodiment
In one embodiment, a kind of marine wind electric field access scheme forming method, as shown in figure 1, comprising the following steps:
Step s120: obtain target grid parameter, and multiple marine wind electric field access sides are generated according to target grid parameter
Case.
The species of target grid parameter is not unique, specifically can be according to the different access transformer station of target grid, access electricity
Pressure grade and line attachment return number, arrange multiple feasible marine wind electric field access system plans.In one embodiment, target
Electrical network parameter includes the expected load vacancy of target grid, and each transformer station 110kv and 220kv side vacant outgoing line interval number
Amount.Step s120 includes step 122 and step 124.
Step 122: obtain the expected load vacancy of target grid, and according to expected load vacancy setting marine wind electric field dress
Machine scale.Consider that target grid expects load vacancy, rationally setting marine wind electric field installation scale.
Step 124: obtain target grid each transformer station 110kv and 220kv side vacant outgoing line interval quantity, select different
Access transformer station, line attachment returns number and accesses electric pressure, generates multiple marine wind electric field access schemes.Investigate target grid
Each transformer station 110kv and 220kv side vacant outgoing line interval quantity, selects different access transformer stations, line attachment to return number and connect
Enter electric pressure, generate different access schemes.
Step s140: obtain marine wind electric field power in each marine wind electric field access scheme and access the technology after target grid
Property index.
The particular type of technical index is not unique, and in the present embodiment, it is normal that technical index may include target grid
Trend distribution under the method for operation, the distribution of n-1 trend, short circuit current and stability under malfunction.Wherein, target grid is normal
The method of operation is to refer to target grid not break down.Carry out respectively under target grid normal operating mode after each scheme access
Trend distribution, n-1 trend distribution under malfunction, short circuit current and stable calculation, so that it is determined that the corresponding skill of each scheme
Art index.
Step s160: the technical index according to obtaining meets the marine wind electric field access side presetting technical index request
Case, the topological structure of design marine wind electric field and equipment dependability parameter, and the topological structure according to marine wind electric field and equipment
Dependability parameter is calculated the economic index of corresponding marine wind electric field access scheme.
Different according to the particular type of technical index, default technical index request also can correspond to different.Equally
May include the trend distribution under target grid normal operating mode with technical index, the distribution of n-1 trend, short circuit under malfunction
As a example electric current and stability, in the present embodiment, preset technical index request and include trend under target grid normal operating mode
And under malfunction, n-1 trend is out-of-limit, short circuit current is not out-of-limit and malfunction under system not unstability under n-1 state.Can
Pre-set the out-of-limit condition of n-1 trend under trend and malfunction under electrical network normal operating mode, and short circuit current more
Limit condition, occurs trend out-of-limit out-of-limit with short circuit current with judging whether.
Not out-of-limit with n-1 trend under trend under normal operating mode and malfunction, short circuit current is not out-of-limit, fault n-1
Under state, unstability is not constraints to system, and whether the technical index studying each scheme meets each constraint requirements, if so, then root
According to meeting the scheme presetting technical index request, to marine wind electric field, each equipment and topological structure are designed, and arrange each
The dependability parameter of element；If it is not, the program or modification then can be excluded.Specifically, in one embodiment, step s160
Including step 162 to step 166.
Step 162: extractive technique index meets the marine wind electric field access scheme presetting technical index request, obtains
Initial option access scheme.
Specifically can extract full after technical index is deleted or modified being unsatisfactory for presetting the scheme of technical index request
Foot presets the scheme of technical index request, obtains initial option access scheme.
Step 164: the access electric pressure of 110kv or 220kv according to selected in initial option access scheme, design sea
Upper wind energy turbine set Main connection form and transmission voltage grade, obtain the topological structure of marine wind electric field and determine that equipment dependability is joined
Number.
The access electric pressure of 110kv or 220kv according to selected in each scheme, designs marine wind electric field main electrical scheme shape
Formula and transmission voltage grade obtain the topological structure of marine wind electric field, select relevant device simultaneously to determine each equipment dependability parameter.
Step 166: the topological structure according to marine wind electric field and equipment dependability parameter, calculate marine wind electric field reliability
Index year lacks generated energy, and scarce for reliability index year generated energy mark conversion is obtained economic index year lacking power generation loss, as
Economic index.
After the topological structure determining marine wind electric field and each equipment dependability parameter, can directly determine in corresponding scheme
The generated energy of marine wind electric field, can be calculated in conjunction with expected load vacancy and marine wind electric field reliability index year lack generating
Amount, as the generating reliability index of corresponding scheme.Lacked generated energy marine wind electric field reliability index year divided by default damage
Loss-rate can get generated energy needed for marine wind electric field, calculates generated energy needed for marine wind electric field and marine wind electric field reliability index
The difference of year scarce generated energy obtains economic index year lacking power generation loss, as the economic index of corresponding scheme.Wherein, economy
Index year lacks the power generation loss that power generation loss refers to lead to due to equipment fault.
Step s180: according to economic index, corresponding marine wind electric field access scheme is compared, obtains optimum sea
Upper wind energy turbine set access scheme simultaneously exports.
Econmics comparison can be carried out to each scheme using minimum comparative annual cost approach, increased on the basis of annual fee relative method
The power generation loss being led to due to equipment fault.Specifically, step s180 includes step 182 and step 184.
Step 182: econmics comparison is carried out to each initial option access scheme, obtains the capital project annual fee of corresponding scheme
With.It is specially
Wherein, nf is capital project annual cost, and z is scheme gross investment, and u is scheme annual operating cost, and r0 is power industry
Rate of return on investment, n is industrial economy service life, and r lacks power generation loss for economic index year.
Step 184: obtain the minimum scheme of capital project annual cost in each initial option access scheme, as optimum sea
Upper wind energy turbine set access scheme output.
According to each scheme technical comparison and econmics comparison result, meeting the premise presetting technical index request
Under, select the minimum scheme of annual fee to export for final scheme.The mode of the optimum marine wind electric field access scheme of output is not only
One, can be to export to be managed concentratedly or exported to host computer to be stored to memorizer.
Above-mentioned marine wind electric field access scheme forming method, by carrying out technical finger to each marine wind electric field access scheme
Mark and economical index evaluation, thus obtaining optimum marine wind electric field access scheme, can be marine wind electric field Design Fundamentals rank
The access network system design of section provides effective instrument, makes marine wind electric field access system investment cost optimum, reduces sea
The cost of access of upper wind energy turbine set.
In one embodiment, a kind of marine wind electric field access scheme forms system, as shown in Fig. 2 including access scheme
Generation module 120, technical index selection module 140, economic index computing module 160 and optimal case output module 180.
Access scheme generation module 120 is used for obtaining target grid parameter, and generates multiple seas according to target grid parameter
Upper wind energy turbine set access scheme.
The species of target grid parameter is not unique, specifically can be according to the different access transformer station of target grid, access electricity
Pressure grade and line attachment return number, arrange multiple feasible marine wind electric field access system plans.In one embodiment, target
Electrical network parameter includes the expected load vacancy of target grid, and each transformer station 110kv and 220kv side vacant outgoing line interval number
Amount.Access scheme generation module 120 first access scheme signal generating unit and the second access scheme signal generating unit.
First access scheme signal generating unit is used for obtaining the expected load vacancy of target grid, and according to expected load vacancy
Setting marine wind electric field installation scale.Consider that target grid expects load vacancy, rationally setting marine wind electric field installation scale.
Second access scheme signal generating unit is used for obtaining between the vacant outlet of target grid each transformer station 110kv and 220kv side
Every quantity, select different access transformer stations, line attachment to return number and access electric pressure, generate multiple marine wind electric fields and access
Scheme.Investigation target grid each transformer station 110kv and 220kv side vacant outgoing line interval quantity, the different access transformer stations of selection,
Line attachment returns number and accesses electric pressure, generates different access schemes.
Technical index selection module 140 is used for obtaining marine wind electric field power access in each marine wind electric field access scheme
Technical index after target grid.
The particular type of technical index is not unique, and in the present embodiment, it is normal that technical index may include target grid
Trend distribution under the method for operation, the distribution of n-1 trend, short circuit current and stability under malfunction.Wherein, target grid is normal
The method of operation is to refer to target grid not break down.Carry out respectively under target grid normal operating mode after each scheme access
Trend distribution, n-1 trend distribution under malfunction, short circuit current and stable calculation, so that it is determined that the corresponding skill of each scheme
Art index.
Economic index computing module 160 is used for being met according to the technical index obtaining presets technical index request
Marine wind electric field access scheme, the topological structure of design marine wind electric field and equipment dependability parameter, and according to marine wind electric field
Topological structure and equipment dependability parameter be calculated the economic index of corresponding marine wind electric field access scheme.
Different according to the particular type of technical index, default technical index request also can correspond to different.Equally
May include the trend distribution under target grid normal operating mode with technical index, the distribution of n-1 trend, short circuit under malfunction
As a example electric current and stability, in the present embodiment, preset technical index request and include trend under target grid normal operating mode
And under malfunction, n-1 trend is out-of-limit, short circuit current is not out-of-limit and malfunction under system not unstability under n-1 state.Can
Pre-set the out-of-limit condition of n-1 trend under trend and malfunction under electrical network normal operating mode, and short circuit current more
Limit condition, occurs trend out-of-limit out-of-limit with short circuit current with judging whether.
Not out-of-limit with n-1 trend under trend under normal operating mode and malfunction, short circuit current is not out-of-limit, fault n-1
Under state, unstability is not constraints to system, and whether the technical index studying each scheme meets each constraint requirements, if so, then root
According to meeting the scheme presetting technical index request, to marine wind electric field, each equipment and topological structure are designed, and arrange each
The dependability parameter of element；If it is not, the program or modification then can be excluded.Specifically, in one embodiment, economy refers to
Mark computing module 160 first economic index computing unit, the second economic index computing unit and the 3rd economic index meter
Calculate unit.
First economic index computing unit is used for extractive technique index and meets the sea presetting technical index request
Wind energy turbine set access scheme, obtains initial option access scheme.
Specifically can extract full after technical index is deleted or modified being unsatisfactory for presetting the scheme of technical index request
Foot presets the scheme of technical index request, obtains initial option access scheme.
Second economic index computing unit is used for 110kv or 220kv according to selected in initial option access scheme
Access electric pressure, design marine wind electric field Main connection form and transmission voltage grade, obtain the topological structure of marine wind electric field
And determine equipment dependability parameter.
The access electric pressure of 110kv or 220kv according to selected in each scheme, designs marine wind electric field main electrical scheme shape
Formula and transmission voltage grade obtain the topological structure of marine wind electric field, select relevant device simultaneously to determine each equipment dependability parameter.
3rd economic index computing unit is used for the topological structure and equipment dependability parameter according to marine wind electric field, meter
Calculate and marine wind electric field reliability index year lack generated energy, and lacked the conversion of generated energy mark reliability index year and obtain economic index
Year scarce power generation loss, as economic index.
After the topological structure determining marine wind electric field and each equipment dependability parameter, can directly determine in corresponding scheme
The generated energy of marine wind electric field, can be calculated in conjunction with expected load vacancy and marine wind electric field reliability index year lack generating
Amount, as the generating reliability index of corresponding scheme.Lacked generated energy marine wind electric field reliability index year divided by default damage
Loss-rate can get generated energy needed for marine wind electric field, calculates generated energy needed for marine wind electric field and marine wind electric field reliability index
The difference of year scarce generated energy obtains economic index year lacking power generation loss, as the economic index of corresponding scheme.Wherein, economy
Index year lacks the power generation loss that power generation loss refers to lead to due to equipment fault.
Optimal case output module 180 is used for according to economic index, corresponding marine wind electric field access scheme being compared
Relatively, obtain optimum marine wind electric field access scheme and export.
Econmics comparison can be carried out to each scheme using minimum comparative annual cost approach, increased on the basis of annual fee relative method
The power generation loss being led to due to equipment fault.Specifically, optimal case output module 180 includes the first optimal case output list
Unit and the second optimal case output unit.
First optimal case output unit is used for carrying out econmics comparison to each initial option access scheme, obtains counterparty
The capital project annual cost of case.It is specially
Wherein, nf is capital project annual cost, and z is scheme gross investment, and u is scheme annual operating cost, and r0 is power industry
Rate of return on investment, n is industrial economy service life, and r lacks power generation loss for economic index year.
Second optimal case output unit is used for obtaining capital project annual cost minimum in each initial option access scheme
Scheme, as optimum marine wind electric field access scheme output.
According to each scheme technical comparison and econmics comparison result, meeting the premise presetting technical index request
Under, select the minimum scheme of annual fee to export for final scheme.The mode of the optimum marine wind electric field access scheme of output is not only
One, can be to export to be managed concentratedly or exported to host computer to be stored to memorizer.
Above-mentioned marine wind electric field access scheme forms system, by carrying out technical finger to each marine wind electric field access scheme
Mark and economical index evaluation, thus obtaining optimum marine wind electric field access scheme, can be marine wind electric field Design Fundamentals rank
The access network system design of section provides effective instrument, makes marine wind electric field access system investment cost optimum, reduces sea
The cost of access of upper wind energy turbine set.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
Say, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of marine wind electric field access scheme forming method is it is characterised in that comprise the following steps:
Obtain target grid parameter, and multiple marine wind electric field access schemes are generated according to described target grid parameter；
Obtain marine wind electric field power in each described marine wind electric field access scheme and access the technical index after target grid；
Technical index according to obtaining meets the marine wind electric field access scheme presetting technical index request, designs sea turn
The topological structure of electric field and equipment dependability parameter, and the topological structure according to described marine wind electric field and equipment dependability parameter
It is calculated the economic index of corresponding marine wind electric field access scheme；
According to described economic index, corresponding marine wind electric field access scheme is compared, obtains optimum marine wind electric field and connect
Enter scheme and export.
2. marine wind electric field access scheme forming method according to claim 1 is it is characterised in that described technical index
Including the trend distribution under target grid normal operating mode, the distribution of n-1 trend, short circuit current and stability under malfunction；
Described preset technical index request and include n-1 trend under trend and malfunction under target grid normal operating mode do not get over
Limit, short circuit current is not out-of-limit and malfunction under system not unstability under n-1 state.
3. marine wind electric field access scheme forming method according to claim 1 is it is characterised in that described target grid is joined
Number includes the expected load vacancy of target grid, and each transformer station 110kv and 220kv side vacant outgoing line interval quantity；Described
Obtain target grid parameter, and the step that multiple marine wind electric field access schemes are generated according to described target grid parameter, including
Following steps:
Obtain the expected load vacancy of target grid, and marine wind electric field installation scale is arranged according to described expected load vacancy；
Acquisition target grid each transformer station 110kv and 220kv side vacant outgoing line interval quantity, the different access transformer stations of selection,
Line attachment returns number and accesses electric pressure, generates multiple marine wind electric field access schemes.
4. marine wind electric field access scheme forming method according to claim 3 it is characterised in that described according to obtain
Technical index meets the marine wind electric field access scheme presetting technical index request, the topological structure of design marine wind electric field
With equipment dependability parameter, and the topological structure according to described marine wind electric field and equipment dependability parameter are calculated corresponding sea
The step of the economic index of upper wind energy turbine set access scheme, comprises the following steps:
Extractive technique index meets the marine wind electric field access scheme presetting technical index request, obtains initial option and accesses
Scheme；
The access electric pressure of 110kv or 220kv according to selected in initial option access scheme, design marine wind electric field master connects
Line form and transmission voltage grade, obtain the topological structure of marine wind electric field and determine equipment dependability parameter；
Topological structure according to described marine wind electric field and equipment dependability parameter, calculate and lack in marine wind electric field reliability index year
Generated energy, and scarce for described reliability index year generated energy mark conversion is obtained economic index year lacking power generation loss, as described
Economic index.
5. marine wind electric field access scheme forming method according to claim 4 it is characterised in that described according to described warp
Ji property index is compared to corresponding marine wind electric field access scheme, obtains optimum marine wind electric field access scheme and exports
Step, comprises the following steps:
Econmics comparison is carried out to each initial option access scheme, obtains the capital project annual cost of corresponding scheme, specially
Wherein, nf is capital project annual cost, and z is scheme gross investment, and u is scheme annual operating cost, r0Invest back for power industry
Yield, n is industrial economy service life, and r lacks power generation loss for economic index year；
Obtain the minimum scheme of capital project annual cost in each initial option access scheme, access as optimum marine wind electric field
Scheme exports.
6. a kind of marine wind electric field access scheme forms system it is characterised in that including:
Access scheme generation module, for obtaining target grid parameter, and generates multiple seas according to described target grid parameter
Wind energy turbine set access scheme；
Technical index selection module, accesses mesh for obtaining marine wind electric field power in each described marine wind electric field access scheme
Technical index after mark electrical network；
Economic index computing module, for meeting, according to the technical index obtaining, the sea turn presetting technical index request
Electric field access scheme, the topological structure of design marine wind electric field and equipment dependability parameter, and according to described marine wind electric field
Topological structure and equipment dependability parameter are calculated the economic index of corresponding marine wind electric field access scheme；
Optimal case output module, for being compared to corresponding marine wind electric field access scheme according to described economic index,
Obtain optimum marine wind electric field access scheme and export.
7. marine wind electric field access scheme according to claim 6 forms system it is characterised in that described technical index
Including the trend distribution under target grid normal operating mode, the distribution of n-1 trend, short circuit current and stability under malfunction；
Described preset technical index request and include n-1 trend under trend and malfunction under target grid normal operating mode do not get over
Limit, short circuit current is not out-of-limit and malfunction under system not unstability under n-1 state.
8. marine wind electric field access scheme according to claim 6 forms system it is characterised in that described access scheme is given birth to
Module is become to include:
First access scheme signal generating unit, for obtaining the expected load vacancy of target grid, and lacks according to described expected load
Volume setting marine wind electric field installation scale；
Second access scheme signal generating unit, for obtaining target grid each transformer station 110kv and 220kv side vacant outgoing line interval number
Amount, selects different access transformer stations, line attachment to return number and access electric pressure, generates multiple marine wind electric field access sides
Case.
9. marine wind electric field access scheme according to claim 8 forms system it is characterised in that described economic index
Computing module includes:
First economic index computing unit, meets the offshore wind farm presetting technical index request for extractive technique index
Field access scheme, obtains initial option access scheme；
Second economic index computing unit, for the access of 110kv or 220kv according to selected in initial option access scheme
Electric pressure, design marine wind electric field Main connection form and transmission voltage grade, obtain the topological structure of marine wind electric field simultaneously really
Locking equipment dependability parameter；
3rd economic index computing unit, for the topological structure according to described marine wind electric field and equipment dependability parameter,
Calculate and marine wind electric field reliability index year lack generated energy, and lacked the conversion of generated energy mark described reliability index year and obtain economy
Property index year lack power generation loss, as described economic index.
10. marine wind electric field access scheme according to claim 9 forms system it is characterised in that described optimal case
Output module includes:
First optimal case output unit, for carrying out econmics comparison to each initial option access scheme, obtains corresponding scheme
Capital project annual cost, specially
Wherein, nf is capital project annual cost, and z is scheme gross investment, and u is scheme annual operating cost, r0Invest back for power industry
Yield, n is industrial economy service life, and r lacks power generation loss for economic index year；
Second optimal case output unit, for obtaining the minimum side of capital project annual cost in each initial option access scheme
Case, as optimum marine wind electric field access scheme output.
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| CN109038657A (en) * | 2018-07-20 | 2018-12-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Processing method, device, server and the medium of marine wind electric field primary system |
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| US20130063272A1 (en) * | 2011-09-13 | 2013-03-14 | International Business Machines Corporation | System and method for detecting and localizing abnormal conditions and electrical faults in an electrical grid |
| CN105226651A (en) * | 2015-10-22 | 2016-01-06 | 上海交通大学 | A kind of consider risk containing large-scale wind power Transmission Expansion Planning in Electric system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130063272A1 (en) * | 2011-09-13 | 2013-03-14 | International Business Machines Corporation | System and method for detecting and localizing abnormal conditions and electrical faults in an electrical grid |
| CN105226651A (en) * | 2015-10-22 | 2016-01-06 | 上海交通大学 | A kind of consider risk containing large-scale wind power Transmission Expansion Planning in Electric system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109038657A (en) * | 2018-07-20 | 2018-12-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Processing method, device, server and the medium of marine wind electric field primary system |
| CN109038657B (en) * | 2018-07-20 | 2021-02-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Processing method, device, server and medium for primary system of offshore wind farm |
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