CN106849173A - A kind of control of lotus net source coordination is dissolved the appraisal procedure of wind-powered electricity generation security - Google Patents
A kind of control of lotus net source coordination is dissolved the appraisal procedure of wind-powered electricity generation security Download PDFInfo
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- CN106849173A CN106849173A CN201710179511.8A CN201710179511A CN106849173A CN 106849173 A CN106849173 A CN 106849173A CN 201710179511 A CN201710179511 A CN 201710179511A CN 106849173 A CN106849173 A CN 106849173A
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- 238000000034 method Methods 0.000 title claims abstract description 26
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- 235000006508 Nelumbo nucifera Nutrition 0.000 title abstract description 6
- 235000006510 Nelumbo pentapetala Nutrition 0.000 title abstract description 6
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- 238000011156 evaluation Methods 0.000 claims abstract description 6
- 238000010248 power generation Methods 0.000 claims description 5
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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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
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Abstract
The appraisal procedure of wind-powered electricity generation security of being dissolved the invention discloses a kind of control of lotus net source coordination, comprises the following steps：Collect the state parameter of power network after lotus net source coordination is controlled；Determine that the control of lotus net source coordination is dissolved and the safety effects factor index during wind-powered electricity generation and constitute matrix U；Each safety effects factor index value is calculated by the state parameter of power network after the lotus net source coordination control being collected into；Evaluation is carried out to be formed hierarchically opinion rating score matrix V, and the different grades of score value of correspondence；Fuzzy relation between safety effects factor and opinion rating is determined according to code of points, and forms matrix R；Weight analysis are carried out to each safety effects factor, safety effects factor weight matrix A is obtained；Calculate scoring model matrix B=A*R；B matrixes are normalized and obtain B' matrixes；Calculate comprehensive score k=B'*VT.The present invention can safely provide support for wind electricity digestion coordination control.
Description
Technical field
The present invention relates to electric power system data calculating field, coordinate control more specifically to a kind of lotus-net-source and disappear
Receive the appraisal procedure of wind-powered electricity generation security.
Background technology
Wind-driven generator is powered to terminal user in generating, not and is referred to as to abandon wind, start and stop and work(by controllable burden
Rate is controlled, and can be played to stabilize wind electricity volatility and dissolve and be abandoned wind action.During controllable burden is dissolved and abandons wind-powered electricity generation amount,
The start and stop of controllable burden and power adjustment can change the running status of power system, influence the security of power system.Coordinating
After control, gather electric network state parameter and calculated accordingly, power system security parameter index can be obtained, by fuzzy
Comprehensive Evaluation, with reference to every power system security parameter index, can be to the peace of the power system after coordinating control operation of dissolving
Full property is evaluated, and to grasp the safe condition of power system after electric network coordination control, and takes corresponding measure to avoid in time
Dangerous generation.
The content of the invention
The technical problem to be solved in the present invention is, there is provided coordinates control and dissolves the commenting of wind-powered electricity generation security in a kind of lotus-net-source
Estimate method.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of lotus-net-source and coordinate control and dissolve wind
The appraisal procedure of electric security, comprises the following steps：
Step S010, collects the state parameter that power network after control is coordinated in lotus-net-source；
Step S020, determines that lotus-net-source coordinates control and dissolve the safety effects factor index during wind-powered electricity generation and to constitute
Matrix U；
Step S030, the state parameter of power network calculates each safety effects after control is coordinated in the lotus-net-source being collected into
Factor index value；
Step S040, carries out being formed hierarchically opinion rating score matrix V, and the different grades of score value of correspondence to evaluation；
Step S050, the fuzzy relation between safety effects factor and opinion rating, and shape are determined according to code of points
Into matrix R；
Step S060, weight analysis are carried out to each safety effects factor, obtain safety effects factor weight matrix A；
Step S070, calculates scoring model matrix B=A*R；
Step S080, is normalized to B matrixes and obtains B' matrixes,
Step S090, calculates comprehensive score k=B'*VT。
In the step S010, by power network centralized procurement system marks or from power network dispatching system typing be collected lotus-
Coordinate the state parameter of power network after control in net-source.
In the step S020, lotus-net-source coordinates the safety effects factor index bag that control is dissolved during wind-powered electricity generation
Include the out-of-limit index λ of busbar voltageU, bus current index λI, circuit and transformer overload index λL, Wind turbines rate of load condensate refers to
Mark λwr, fired power generating unit power generation load rate λtr, section limit of stability index λsl, greatest limit excision angle δClim-max。
In the step S020, the out-of-limit index of busbar voltageWherein Ui sp=(Ui H+
Ui L)/2, Δ Ui lim=(Ui H-Ui L)/2, θ is bus intersection, w1iIt is i-th weight factor of bus, its value is with the negative of the bus
Load rate is converted, UiIt is i-th voltage magnitude of bus, Ui HIt is i-th upper voltage limit of bus, Ui LIt is i-th voltage of bus
Lower limit.
In the step S020, bus current indexWherein, θ is bus intersection, IiIt is i-th bus
Electric current, INiIt is i-th rated current of bus.
In the step S020, circuit and transformer overload indexWherein, y is defeated
Electric line and transformer intersection, w2iIt is i-th weight factor of transformer lines, its value is with the load factor of this transformer lines
Conversion, SlIt is the power of branch road l, SlmaxIt is the maximum size of branch road l.
In the step S020, Wind turbines rate of load condensate indexWherein, α is running status of exerting oneself
Wind turbines intersection, PGiIt is i-th actual active power output of Wind turbines, PGNiFor i-th Wind turbines it is specified active go out
Power.
In the step S020, fired power generating unit power generation load rateWherein, τ is running status of exerting oneself
Fired power generating unit intersection, PGiIt is i-th actual active power output of fired power generating unit, PGNiFor i-th fired power generating unit it is specified active go out
Power.
In the step S020, section limit of stability indexWherein, ψ is section conjunction
Collection, w3iIt is section weight, ki-0、ki-1It is the stability limit of section i before and after wind-powered electricity generation injection.
In the step S020, greatest limit excision angle δClim-maxAcquisition methods be：Coordinate the N-1 inspections of control power network
When greatest limit excision angle.
In the step S040, opinion rating is divided into Excellent, Good, Average, Fair and Poor five etc.
Level, corresponding opinion rating score matrix V=[10,8,6,4,2].
In the step S050,7 safety effects factors after coordination control are evaluated respectively, it is determined that current shape
Each safety effects factor of state forms R matrixes in the accounting of each opinion rating,
Wherein, rijRepresent i-th factor in j-th scoring vjOn frequency distribution.
In the step S060, safety effects factor weight matrix A=[0.10,0.10,0.10,0.10,0.10,
0.20,0.30].
Implement a kind of lotus-net of the invention-source and coordinate control to dissolve the appraisal procedure of wind-powered electricity generation security, with following beneficial effect
Really：
The present invention gathers electric network state parameter and is calculated accordingly after control is coordinated, and can obtain power system
Security parameter index, by fuzzy comprehensive evaluation method, comprehensive items power system security parameter index can coordinate control to dissolving
Power system security after system operation is evaluated, to grasp the safe condition of power system after electric network coordination control, and
Corresponding measure is taken to avoid the generation of danger in time.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 be a kind of lotus-net-source coordinate control dissolve wind-powered electricity generation security appraisal procedure schematic diagram.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and effect, now compare accompanying drawing and describe in detail
Specific embodiment of the invention.
As shown in figure 1, the present invention provides the appraisal procedure that wind-powered electricity generation security is dissolved in a kind of lotus-net-source coordination control, including
Following steps：
Step S010, collects the state parameter that power network after control is coordinated in lotus-net-source.By power network centralized procurement system marks or
The state parameter that power network after control is coordinated in lotus-net-source is collected from power network dispatching system typing.
Step S020, determines that lotus-net-source coordinates control and dissolve the safety effects factor index during wind-powered electricity generation and to constitute
Matrix U.Lotus-net-source coordinates the safety effects factor index that control dissolves during wind-powered electricity generation includes the out-of-limit index of busbar voltage
λU, bus current index λI, circuit and transformer overload index λL, Wind turbines rate of load condensate index λwr, fired power generating unit generate electricity negative
Lotus rate λtr, section limit of stability index λsl, greatest limit excision angle δClim-max.The out-of-limit index of busbar voltageWherein Ui sp=(Ui H+Ui L)/2, Δ Ui lim=(Ui H-Ui L)/2, θ is bus intersection, w1iIt is
The weight factor of i bar buses, its value is converted with the load factor of the bus, UiIt is i-th voltage magnitude of bus, Ui HIt is i-th
The upper voltage limit of bus, Ui LIt is i-th lower voltage limit of bus.Bus current indexWherein, θ is bus conjunction
Collection, IiIt is i-th electric current of bus, INiIt is i-th rated current of bus.Circuit and transformer overload indexWherein, y is transmission line of electricity and transformer intersection, w2iFor i-th weight of transformer lines because
Son, its value is converted with the load factor of this transformer lines, SlIt is the power of branch road l, SlmaxIt is the maximum size of branch road l.Wind-powered electricity generation
Unit load rate indexWherein, α is exert oneself the Wind turbines intersection of running status, PGiIt is i-th wind turbine
The actual active power output of group, PGNiIt is i-th specified active power output of Wind turbines.Fired power generating unit power generation load rateWherein, τ is exert oneself the fired power generating unit intersection of running status, PGiGo out for the reality of i-th fired power generating unit is active
Power, PGNiIt is i-th specified active power output of fired power generating unit.Section limit of stability indexIts
In, ψ is section intersection, w3iIt is section weight, ki-0、ki-1It is the stability limit of section i before and after wind-powered electricity generation injection.Greatest limit cuts off
Angle δClim-maxAcquisition methods be：Coordinate greatest limit excision angle when control power network N-1 is checked.
Step S030, the state parameter of power network calculates each safety effects after control is coordinated in the lotus-net-source being collected into
Factor index value.
Step S040, carries out being formed hierarchically opinion rating score matrix V, and the different grades of score value of correspondence to evaluation.
Opinion rating is divided into five grades of Excellent, Good, Average, Fair and Poor, corresponding opinion rating score matrix V
=[10,8,6,4,2].
Step S050, the fuzzy relation between safety effects factor and opinion rating, and shape are determined according to code of points
Into matrix R.Respectively to coordinate control after 7 safety effects factors evaluate, determine each safety effects of current state because
Element forms R matrixes in the accounting of each opinion rating,
Wherein, rijRepresent i-th safety effects factor in j-th scoring vjOn frequency distribution.
Step S060, weight analysis are carried out to each safety effects factor, obtain safety effects factor weight matrix A.
Safety effects factor weight matrix A=[0.10,0.10,0.10,0.10,0.10,0.20,0.30].
Step S070, calculates scoring model matrix B=A*R；
Step S080, is normalized to B matrixes and obtains B' matrixes,
Step S090, calculates comprehensive score k=B'*VT。
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Implementation method, above-mentioned specific embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under enlightenment of the invention, in the case of present inventive concept and scope of the claimed protection is not departed from, can also make a lot
Form, these are belonged within protection of the invention.
Claims (13)
1. a kind of lotus-net-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, it is characterised in that comprise the following steps：
Step S010, collects the state parameter that power network after control is coordinated in lotus-net-source；
Step S020, determines that lotus-net-source coordinates control and dissolve the safety effects factor index during wind-powered electricity generation and to constitute matrix
U；
Step S030, the state parameter of power network calculates each safety effects factor after control is coordinated in the lotus-net-source being collected into
Desired value；
Step S040, carries out being formed hierarchically opinion rating score matrix V, and the different grades of score value of correspondence to evaluation；
Step S050, determines the fuzzy relation between safety effects factor and opinion rating, and form square according to code of points
Battle array R；
Step S060, weight analysis are carried out to each safety effects factor, obtain safety effects factor weight matrix A；
Step S070, calculates scoring model matrix B=A*R；
Step S080, is normalized to B matrixes and obtains B' matrixes,
Step S090, calculates comprehensive score k=B'*VT。
2. a kind of lotus-net according to claim 1-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
Be, in the step S010, by power network centralized procurement system marks or from power network dispatching system typing be collected lotus-net-
Coordinate the state parameter of power network after control in source.
3. a kind of lotus-net according to claim 1-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is that in the step S020, lotus-net-source coordinates the safety effects factor index that control dissolves during wind-powered electricity generation to be included
The out-of-limit index λ of busbar voltageU, bus current index λI, circuit and transformer overload index λL, Wind turbines rate of load condensate index
λwr, fired power generating unit power generation load rate λtr, section limit of stability index λsl, greatest limit excision angle δClim-max。
4. a kind of lotus-net according to claims 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, and it is special
Levy and be, in the step S020, the out-of-limit index of busbar voltageWherein Ui sp=(Ui H+
Ui L)/2, Δ Ui lim=(Ui H-Ui L)/2, θ is bus intersection, w1iIt is i-th weight factor of bus, its value is with the negative of the bus
Load rate is converted, UiIt is i-th voltage magnitude of bus, Ui HIt is i-th upper voltage limit of bus, Ui LIt is i-th voltage of bus
Lower limit.
5. a kind of lotus-net according to claim 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S020, bus current indexWherein, θ is bus intersection, IiIt is i-th bus
Electric current, INiIt is i-th rated current of bus.
6. a kind of lotus-net according to claim 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S020, circuit and transformer overload indexWherein, y is transmission of electricity
Circuit and transformer intersection, w2iIt is i-th weight factor of transformer lines, its value is rolled over the load factor of this transformer lines
Calculate, SlIt is the power of branch road l, SlmaxIt is the maximum size of branch road l.
7. a kind of lotus-net according to claim 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S020, Wind turbines rate of load condensate indexWherein, α is the wind of running status of exerting oneself
Group of motors intersection, PGiIt is i-th actual active power output of Wind turbines, PGNiIt is i-th specified active power output of Wind turbines.
8. a kind of lotus-net according to claim 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S020, fired power generating unit power generation load rateWherein, τ is the fire of running status of exerting oneself
Group of motors intersection, PGiIt is i-th actual active power output of fired power generating unit, PGNiIt is i-th specified active power output of fired power generating unit.
9. a kind of lotus-net according to claim 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S020, section limit of stability indexWherein, ψ is section intersection,
w3iIt is section weight, ki-0、ki-1It is the stability limit of section i before and after wind-powered electricity generation injection.
10. a kind of lotus-net according to claim 3-source is coordinated control and is dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S020, greatest limit excision angle δClim-maxAcquisition methods be：When coordinating the N-1 inspections of control power network
Greatest limit cuts off angle.
A kind of 11. lotus-nets according to claim 3-source are coordinated control and are dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is that in the step S040, opinion rating is divided into five grades of Excellent, Good, Average, Fair and Poor,
Corresponding opinion rating score matrix V=[10,8,6,4,2].
A kind of 12. lotus-nets according to claim 3-source are coordinated control and are dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is in the step S050,7 safety effects factors after coordination control to be evaluated respectively, determines current state
Each safety effects factor forms R matrixes in the accounting of each opinion rating,
Wherein, rijRepresent i-th safety effects factor in j-th scoring vjOn frequency distribution.
A kind of 13. lotus-nets according to claim 1-source are coordinated control and are dissolved the appraisal procedure of wind-powered electricity generation security, its feature
It is, in the step S060, safety effects factor weight matrix A=[0.10,0.10,0.10,0.10,0.10,
0.20,0.30].
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| CN109242340A (en) * | 2018-09-29 | 2019-01-18 | 国网辽宁省电力有限公司电力科学研究院 | A kind of thermal storage electric boiler consumption system monitoring data evaluation system and its evaluation method |
| CN109378864A (en) * | 2018-11-01 | 2019-02-22 | 国网辽宁省电力有限公司电力科学研究院 | The control method of " source-net-lotus " coordination optimization based on new energy consumption |
| CN110147917A (en) * | 2018-11-16 | 2019-08-20 | 国网江苏省电力有限公司盐城供电分公司 | A kind of security evaluation and dynamic regulation method for power network line |
| CN110197342A (en) * | 2018-08-03 | 2019-09-03 | 上海交通大学 | Comprehensive source-net-lotus-storage distribution system photoelastic evaluation system and method |
| CN112531689A (en) * | 2020-11-26 | 2021-03-19 | 国网湖南省电力有限公司 | Source network load storage coordination control capability assessment method and equipment of receiving-end power system |
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| CN110197342A (en) * | 2018-08-03 | 2019-09-03 | 上海交通大学 | Comprehensive source-net-lotus-storage distribution system photoelastic evaluation system and method |
| CN110197342B (en) * | 2018-08-03 | 2021-07-27 | 上海交通大学 | System and method for evaluating elasticity of comprehensive source-network-load-storage power distribution system |
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| CN110147917A (en) * | 2018-11-16 | 2019-08-20 | 国网江苏省电力有限公司盐城供电分公司 | A kind of security evaluation and dynamic regulation method for power network line |
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| CN112531689A (en) * | 2020-11-26 | 2021-03-19 | 国网湖南省电力有限公司 | Source network load storage coordination control capability assessment method and equipment of receiving-end power system |
| CN112531689B (en) * | 2020-11-26 | 2022-06-10 | 国网湖南省电力有限公司 | Source network load storage coordination control capability assessment method and equipment of receiving-end power system |
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