CN107092992A - A kind of distributed power source access scheme technology is evaluated and methods of comparison and selection and system - Google Patents
A kind of distributed power source access scheme technology is evaluated and methods of comparison and selection and system Download PDFInfo
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Abstract
Evaluated and methods of comparison and selection and system, 1 the present invention relates to a kind of distributed power source access scheme technology) some distributed power source access schemes to be evaluated are drafted, determine that technology evaluates forcasted years and power system operation mode；2) related data of distributed power source is collected；3) assessment indicator system of distributed power source access is set up；4) power system containing distributed power source is modeled and emulated and obtain power distribution network operation data；5) each evaluation index score value for obtaining each distributed power source access scheme is calculated；6) whether judge each distributed power source access scheme is feasible scheme；7) the overall merit score of each feasibility distributed power source access scheme is calculated；8) infeasibility distributed power source access scheme is rejected, and feasibility distributed power source access scheme is ranked up according to overall merit score, optimal case is chosen.The present invention considers the operating index of an electrical secondary system simultaneously, and the scheme comparison for being included in system for distributed power source provides reference.
Description
Technical field
The present invention relates to field of distribution network, evaluated especially with regard to a kind of distributed power source access scheme technology and than choosing side
Method and system.
Background technology
With developing rapidly for World Economics, energy crisis and environmental pollution have become human social
It is serious to hinder, and a large amount of use of these problems and fossil energy has direct relation.Fossil energy occupies world energy sources consumption
The overwhelming majority, such energy reserve is limited, while fossil energy is based on the elements such as carbon, sulphur, nitrogen, can be produced during burning substantial amounts of
Sour gas and greenhouse gases, there is very big destruction to ecological environment.In this case, countries in the world are all being sent out energetically
Open up clean energy resource, wherein regenerative resource with its it is safer, more economical, more flexible the characteristics of paid close attention to by countries in the world.However,
Because regenerative resource such as wind energy, solar energy etc. have distribution scattered and uneven feature, cause renewable energy power generation
The features such as exerting oneself with intermittent and random fluctuation, can be by point of diversified forms in order to make full use of various regenerative resources
Cloth generates electricity and is combined, to realize the complementation between variety classes, different zones resource.
But, the problem of development of distributed power source also brings many new to power system.Some regenerative resources are exerted oneself
Directly by effect of natural conditions, with stronger randomness and uncontrollability, this not only causes load prediction and theoretical system
The difficulty increase of system planning, while the problem of also bringing new to protection and control system.Power distribution network containing distributed power source is
One baroque, uncertain Active Networks of trend size and Orientation, this to power distribution system voltage adjust, protection coordination and
The problem of power supply quality control brings new.However, the existing theoretical evaluation method for distributed power source access power network is less,
And evaluation method index is simple, it is impossible to comprehensively carry out objective evaluation to distributed power source and power network, especially lack for two
The evaluation index of subsystem.Thus, thoroughly evaluating is carried out to distributed power source access scheme, to ensureing power grid security reliability service
It is significant.
The content of the invention
In view of the above-mentioned problems, being evaluated it is an object of the invention to provide a kind of distributed power source access scheme technology and than choosing side
Method and system, while considering, to primary system and the joint effect situation of electrical secondary system after distributed power source access system, to formulate
Evaluation criterion, provides methods of comparison and selection, so as to provide reference frame with evaluating for the design of distributed power source access scheme.
To achieve the above object, the present invention takes following technical scheme：A kind of distributed power source access scheme technology is evaluated
With methods of comparison and selection, it is characterised in that comprise the following steps：1) some distributed power source access schemes to be evaluated are drafted, and are determined
Technology evaluates the method for operation of forcasted years and power system；2) according to each distributed power source access scheme drafted, collect each
The related data of distributed power source in distributed power source access scheme, includes scale, model and the parameter of distributed power source；3) root
The influence caused after being accessed according to distributed power source to primary system and electrical secondary system, sets up the evaluation index of distributed power source access
System, for evaluating the power distribution network operation data after access distributed power source；4) according to the access of each distributed power source
The related data of distributed power source and the method for operation of power system in scheme, are carried out to the power system containing distributed power source
Model and emulate, obtain the power distribution network operation data under each distributed power source access scheme；5) according to obtained each distributed electrical
Power distribution network operation data and step 3 under the access scheme of source) the middle assessment indicator system set up, is accessed to each distributed power source
The specific evaluation index value of scheme is calculated, and obtains each evaluation index score value；6) obtained according to obtained every evaluation index
Score value judges whether each distributed power source access scheme is feasible scheme；7) it is based on step 3) the middle each evaluation index determined
Index weights and evaluation index score value, calculation procedure 6) in the obtained synthesis of each feasibility distributed power source access scheme comment
Valency score；8) infeasibility distributed power source access scheme is rejected, and to feasibility distributed power source access scheme according to synthesis
Evaluate score to be ranked up, choose optimal case.
The step 3) in, the assessment indicator system of the distributed power source access of foundation includes specific evaluation index, with
And the index weights of indices and scoring formula.
The evaluation index includes quality of voltage, line load rate, transformer station's load factor, harmonic wave, short circuit current flow, line loss
Rate, dispatching automation, system communication mode, system protection and the class index of electric energy metrical ten.
The quality of voltage index includes voltage unbalance factor, voltage deviation, four indexs of voltage pulsation and voltage flicker；
The harmonic wave index includes harmonic voltage harmonic electric current two indices；The dispatching automation index includes telecontrol information and prison
Control system security protection two indices；The relay protection of the system protection index including grid-connected circuit and the protection of anti-isolated island and
Electric voltage frequency protects two indices.
The index weights of every evaluation index are adjusted according to it to the actual conditions of effect on power system, and institute
It is 1 to have index weights sum.
The step 5) in, when calculating the specific evaluation index value of each distributed power source access scheme, calculate public
Formula is as follows：
1. voltage pulsation
The variations in voltage of PCC points is characterized after the calculated value of voltage pulsation is cut off suddenly with distributed power source, calculation formula
For：
In formula：RLFor system equivalent resistance, unit is Ω；XLFor system equivalent reactance, unit is Ω；P is active change
Amount, unit is MW；Q is idle work variable quantity, and unit is MVar；UNFor PCC point voltages, unit is kV；
2. line load rate
Line load rate refers to the percentage of circuit peak load and the ratio between circuit rated capacity under normal mode, to weigh
The difference degree between peak load and rated capacity is measured, calculation formula is：
In formula：θ is line load rate, is represented with %；ImaxFor circuit maximum current value, unit is A；InFor rated current
Value, unit is A；
3. transformer station's load factor
Transformer station's load capacity refers to the percentage of transformer station's peak load and the ratio between transformer station's rated capacity in certain time,
To weigh the difference degree between peak load and rated capacity, calculation formula is：
In formula：β line load rates, are represented with %；SmaxFor transformer station's peak load, unit is MVA；SnFor transformer station's volume
Constant volume, unit is MVA.
The step 6) in, whether each distributed power source access scheme is judged according to obtained every evaluation index score value
It is for the method for feasible scheme：Judge whether the score value of all limited indexs is not equal to 0：If it is not satisfied, then judging
The distributed power source access scheme is infeasibility scheme；If meeting, judge the distributed power source access scheme as feasibility
Scheme.
The step 7) in, the calculation formula of the overall merit score of each feasibility distributed power source access scheme is：
In formula：M is the overall merit score of distributed power source access scheme；ykFor distributed power source access scheme kth
Specific evaluation index score value；wkFor distributed power source access scheme kth specific targets weight.
A kind of distributed power source access scheme technology evaluation suitable for methods described with than selecting system, it is characterised in that：
It includes a programming module, a data acquisition module, an assessment indicator system and builds module, Modeling of Distribution Network emulation mould
Block, an evaluation index computing module, a feasibility judge module, a comprehensive grading computing module and optimal case selection mould
Block；The programming module is used to draft distributed power source access scheme；The data acquisition module is used to obtain what is drafted
Scale, model and the parameter of each distributed power source in each distributed power source access scheme；The assessment indicator system builds module
Assessment indicator system for setting up distributed power source access；The Modeling of Distribution Network emulation module is used for containing distributed power source
Power system be modeled and emulate, obtain the service data of power distribution network under each distributed power source access scheme；It is described to evaluate
Index computing module is used to, according to power distribution network operation data and assessment indicator system, calculate each distributed power source access scheme
Evaluation index score；The feasibility judge module is used for the evaluation index score according to each distributed power source access scheme, sentences
The feasibility of disconnected each distributed power source access scheme；The comprehensive grading computing module is used for the distribution for calculating all feasibilities
The overall merit score of plant-grid connection scheme；The optimal case selecting module is used to be accessed according to each feasibility distributed power source
The overall merit score of scheme, the distributed power source access scheme of selection highest scoring is optimal case.
The present invention is due to taking above technical scheme, and it has advantages below：1st, the present invention is established while considering distribution
The influence caused after formula plant-grid connection to primary system and electrical secondary system, is weighted and asks to index of system and Quadratic
With so provide the comprehensive evaluation index of distributed power source access scheme, for the planning amount of providing of distributed power source access system
The evaluation criterion of change, objective reference is provided for scheme comparison.2nd, the present invention uses the limited index quantified to distributed power source
Access scheme is evaluated, with right of veto by one vote, so that the technical feasibility of access scheme is ensure that, meanwhile, it also ensure that
The security and high efficiency of system operation after putting into operation.3rd, the present invention can not only be carried out for single distributed power source access scheme
Technology is evaluated, and judges whether it is feasible；And multiple distributed power source access schemes can be carried out to compare choosing, it is optimal to obtain
Distributed power source access scheme.Thus, the present invention can be widely applied to comment the comprehensive technology of distributed power source access progress
In valency, the healthy and orderly access of distributed power source is ensured, power grid security reliability service is ensured.
Brief description of the drawings
Fig. 1 is the inventive method flow chart.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Evaluated and methods of comparison and selection as shown in figure 1, the present invention provides a kind of distributed power source access scheme technology, including it is following
Step：
1) some distributed power source access schemes to be evaluated are drafted, and determine that technology evaluates forcasted years and power system
The method of operation.
2) according to each distributed power source access scheme drafted, distributed power source in each distributed power source access scheme is collected
Related data, include scale, model and the parameter of distributed power source.
3) influence caused after being accessed according to distributed power source to primary system and electrical secondary system, sets up distributed power source and connects
The assessment indicator system entered, for evaluating the power distribution network operation data after access distributed power source, wherein, evaluation index
System includes the index weights and scoring formula of specific evaluation index and each evaluation index.
The assessment indicator system for the distributed power source access set up in the present invention includes ten major classes totally ten six indexs.Ten is big
Class index includes quality of voltage, line load rate, transformer station's load factor, harmonic wave, short circuit current flow, line loss per unit, dispatching automation, is
System communication mode, system protection and the class index of electric energy metrical ten.Wherein, quality of voltage is again inclined including voltage unbalance factor, voltage
Difference, four indexs of voltage pulsation and voltage flicker.Harmonic wave includes harmonic voltage harmonic electric current two indices.Dispatching automation bag
Include telecontrol information and monitoring system security protection two indices.System protection includes the relay protection of grid-connected circuit and anti-isolated island
Protection and electric voltage frequency protect two indices.
Wherein, voltage deviation index should meet GB/T 12325 and require, voltage fluctuation and flicker should meet GB/T12326 will
Ask, harmonic voltage harmonic electric current should meet GB/T14549 requirement, telecontrol information should meet Q/GDW11147 requirement, communication with
Information, relay protection and automatic safety device, dispatching automation, Electric Energy Metering Technology should meet Q/GDW 1480, Q/GDW
11147 requirement.
The index weights and scoring formula of indices are as shown in table 1 below, wherein, the index weights root of every evaluation index
Actual conditions of effect on power system are adjusted according to it, but all index weights sums should be 1.Limited index is in table
Refer to the index that distributed power source access scheme to be evaluated must is fulfilled for, if thering is one to be unsatisfactory in all limited indexs,
Then the distributed power source access scheme is infeasibility scheme.
The distributed power source access scheme index weights of table 1 and scoring formula
4) according to the access scheme of each distributed power source and the method for operation of power system, to the electricity containing distributed power source
Force system is modeled and emulated, and obtains the power distribution network operation data under each distributed power source access scheme, including trend distribution,
The data such as voltage level, short-circuit current level harmonic.
Power system containing distributed power source is modeled and emulated and belongs to prior art, the present invention is repeated no more.
5) according to obtaining power distribution network operation data and step 3 under each distributed power source access scheme) in set up comment
Valency index system, the specific evaluation index value to each distributed power source access scheme is calculated, and obtains each evaluation index score
Value.
Wherein, in addition to voltage pulsation, line load rate, transformer station's load factor index, other data can be according to electric power
The basic data and power distribution network operation data of system are directly obtained, voltage pulsation, line load rate, transformer station's load factor it is specific
Computational methods are as follows.
1. voltage pulsation
The variations in voltage of PCC points is characterized after the calculated value of voltage pulsation is cut off suddenly with distributed power source, calculation formula
For：
In formula：RLFor system equivalent resistance, unit is Ω；XLFor system equivalent reactance, unit is Ω；P is active change
Amount, unit is MW；Q is idle work variable quantity, and unit is MVar；UNFor PCC point voltages, unit is kV.
2. line load rate
Line load rate refers to the percentage of circuit peak load and the ratio between circuit rated capacity under normal mode, to weigh
Measure the difference degree between peak load and rated capacity.Calculation formula is：
In formula：θ is line load rate, is represented with %；ImaxFor circuit maximum current value, unit is A；InFor rated current
Value, unit is A.
The long-term of wire allows working current value value condition：At ambient temperature at 25 DEG C, wire highest is taken to allow temperature
The current-carrying capacity of 70 DEG C of degree.Heavy-haul line：Heavy-haul line refers to the circuit that load factor is more than 80%.Light-loaded circuit：Light-loaded circuit refers to negative
Load rate is less than 20% circuit.
3. transformer station's load factor
Transformer station's load capacity refers to (all main transformers) peak load of transformer station in certain time and transformer station's (all main transformers)
The percentage of the ratio between rated capacity, to weigh the difference degree between peak load and rated capacity.Calculation formula is：
In formula：β line load rates, are represented with %；SmaxFor transformer station (all main transformers) peak load, unit is MVA；Sn
For transformer station (all main transformers) rated capacity, unit is MVA.
Substation with Heavy Load：Substation with Heavy Load refers to the transformer station that load factor is more than 80%.
Underloading transformer station：Underloading transformer station refers to the transformer station that load factor is less than 20%.
Calculate after obtained each evaluation index numerical value, according to the scoring formula of every evaluation index in table 1, calculating obtains each
Item evaluation index score value.
6) judge whether each distributed power source access scheme is feasibility side according to obtained every evaluation index score value
Case.
Specifically determination methods are：Judge whether the score value of all limited indexs is not equal to 0, if it is not satisfied, then
Judge the distributed power source scheme as infeasibility scheme；If meeting, judge the program as feasible scheme.
7) be based on step 3) in determine each evaluation index index weights and evaluation index score value, calculation procedure 6) in
The overall merit score of obtained each feasibility distributed power source access scheme.
The calculation formula of the overall merit score of distributed power source access scheme is：
In formula：M is the overall merit score of distributed power source access scheme；ykFor distributed power source access scheme kth
Specific evaluation index score value；wkFor distributed power source access scheme kth specific targets weight.
8) infeasibility distributed power source access scheme is rejected, and to feasibility distributed power source access scheme according to synthesis
Evaluate score to be ranked up, choose optimal case.
The present invention also provides a kind of distributed power source access scheme technology evaluation suitable for the above method and than selecting system,
It includes a programming module, a data acquisition module, an assessment indicator system and builds module, Modeling of Distribution Network emulation mould
Block, an evaluation index computing module, a feasibility judge module, a comprehensive grading computing module and optimal case selection mould
Block.
Wherein, programming module is used to draft distributed power source access scheme；Data acquisition module is drafted for acquisition
Each distributed power source access scheme in each distributed power source scale, model and parameter；Assessment indicator system builds module and used
In the assessment indicator system for setting up distributed power source access；Modeling of Distribution Network emulation module is used for the electric power containing distributed power source
System is modeled and emulated, and obtains the service data of power distribution network under each distributed power source access scheme；Evaluation index calculates mould
Block is used for according to power distribution network operation data and assessment indicator system, and the evaluation index for calculating each distributed power source access scheme is obtained
Point；Feasibility judge module is used for the evaluation index score according to each distributed power source access scheme, judges each distributed power source
The feasibility of access scheme；Comprehensive grading computing module is used for the synthesis for calculating the distributed power source access scheme of all feasibilities
Evaluate score；Optimal case selecting module is used for the overall merit score according to each feasibility distributed power source access scheme, choosing
The distributed power source access scheme for selecting highest scoring is optimal case.
The present invention is described further with reference to embodiment.
Certain fishing light complementation photovoltaic plant recommendation access scheme be：The fishing light complementation newly-built 1 time 35kV circuit of photovoltaic plant connects
Enter 110kV transformer stations, (extended using cable using LGJ-240 types wire and be about 5.5km, extended using steel pipe pole and be about 3km, maked somebody a mere figurehead
Steel tower 2.5km), newly-built line length is 11km.
110kV transformer stations present situation：Voltage class is 110/35/10kV, main transformer capacity：Present situation 2 (31.5+40 megavolt-amperes)
Transformer.
110kV single bus schemes, distant view outlet 3 times reveals line 3 times；
35kV single-trunk segmental wirings, distant view outlet 6 times reveals line 5 times.35kV has standby spacing 1 time temporarily without planning.Adopt
Use single-trunk segmental wiring.
Distributed power source access power distribution network synthesis score value is calculated, indices score see the table below.
None is equal to 0 to indices score, possesses appreciation condition.95.30 points of total score, evaluation result is higher.
If fishing light complementation photovoltaic plant there are a variety of access schemes, evaluated one by one, for possessing appreciation condition
Scheme is ranked up according to score value, obtains prioritization scheme.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, the application can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the application can be used in one or more computers for wherein including computer usable program code
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
Claims (9)
1. a kind of distributed power source access scheme technology is evaluated and methods of comparison and selection, it is characterised in that comprised the following steps：
1) some distributed power source access schemes to be evaluated are drafted, and determine that technology evaluates the fortune of forcasted years and power system
Line mode；
2) according to each distributed power source access scheme drafted, the phase of distributed power source in each distributed power source access scheme is collected
Data are closed, include scale, model and the parameter of distributed power source；
3) influence caused after being accessed according to distributed power source to primary system and electrical secondary system, sets up distributed power source access
Assessment indicator system, for evaluating the power distribution network operation data after access distributed power source；
4) according to the related data of distributed power source in the access scheme of each distributed power source and the method for operation of power system,
Power system containing distributed power source is modeled and emulated, the distribution network operation under each distributed power source access scheme is obtained
Data；
5) according to the power distribution network operation data and step 3 under obtained each distributed power source access scheme) the middle evaluation set up
Index system, the specific evaluation index value to each distributed power source access scheme is calculated, and obtains each evaluation index score value；
6) judge whether each distributed power source access scheme is feasible scheme according to obtained every evaluation index score value；
7) be based on step 3) in determine each evaluation index index weights and evaluation index score value, calculation procedure 6) in obtain
Each feasibility distributed power source access scheme overall merit score；
8) infeasibility distributed power source access scheme is rejected, and to feasibility distributed power source access scheme according to overall merit
Score is ranked up, and chooses optimal case.
2. a kind of distributed power source access scheme technology as claimed in claim 1 is evaluated and methods of comparison and selection, it is characterised in that：Institute
State step 3) in, the assessment indicator system of the distributed power source access of foundation includes specific evaluation index, and indices
Index weights and scoring formula.
3. a kind of distributed power source access scheme technology as claimed in claim 2 is evaluated and methods of comparison and selection, it is characterised in that：Institute
State evaluation index automatic including quality of voltage, line load rate, transformer station's load factor, harmonic wave, short circuit current flow, line loss per unit, scheduling
Change, system communication mode, system protection and the class index of electric energy metrical ten.
4. a kind of distributed power source access scheme technology as claimed in claim 3 is evaluated and methods of comparison and selection, it is characterised in that：Institute
Stating quality of voltage index includes voltage unbalance factor, voltage deviation, four indexs of voltage pulsation and voltage flicker；The harmonic wave refers to
Mark includes harmonic voltage harmonic electric current two indices；The dispatching automation index includes telecontrol information and monitoring system safety
Protect two indices；The system protection index includes the relay protection and the protection of anti-isolated island of grid-connected circuit and electric voltage frequency is protected
Protect two indices.
5. a kind of distributed power source access scheme technology as claimed in claim 2 is evaluated and methods of comparison and selection, it is characterised in that：Institute
The index weights for stating every evaluation index are adjusted according to it to the actual conditions of effect on power system, and all index weights
Sum is 1.
6. a kind of distributed power source access scheme technology as claimed in claim 1 is evaluated and methods of comparison and selection, it is characterised in that：Institute
State step 5) in, when calculating the specific evaluation index value of each distributed power source access scheme, calculation formula is as follows：
1. voltage pulsation
The variations in voltage of PCC points is characterized after the calculated value of voltage pulsation is cut off suddenly with distributed power source, and calculation formula is：
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In formula：RLFor system equivalent resistance, unit is Ω；XLFor system equivalent reactance, unit is Ω；P is active variable quantity, single
Position is MW；Q is idle work variable quantity, and unit is MVar；UNFor PCC point voltages, unit is kV；
2. line load rate
Line load rate refers to the percentage of circuit peak load and the ratio between circuit rated capacity under normal mode, to weigh most
Difference degree between load and rated capacity greatly, calculation formula is：
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In formula：θ is line load rate, is represented with %；ImaxFor circuit maximum current value, unit is A；InFor load current value, list
Position is A；
3. transformer station's load factor
Transformer station's load capacity refers to the percentage of transformer station's peak load and the ratio between transformer station's rated capacity in certain time, is used to
The difference degree between peak load and rated capacity is weighed, calculation formula is：
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<mo>;</mo>
</mrow>
In formula：β line load rates, are represented with %；SmaxFor transformer station's peak load, unit is MVA；SnFor the specified appearance of transformer station
Amount, unit is MVA.
7. a kind of distributed power source access scheme technology as claimed in claim 1 is evaluated and methods of comparison and selection, it is characterised in that：Institute
State step 6) in, judge whether each distributed power source access scheme is feasibility side according to obtained every evaluation index score value
The method of case is：
Judge whether the score value of all limited indexs is not equal to 0：
If it is not satisfied, then judging the distributed power source access scheme as infeasibility scheme；
If meeting, judge the distributed power source access scheme as feasible scheme.
8. a kind of distributed power source access scheme technology as claimed in claim 1 is evaluated and methods of comparison and selection, it is characterised in that：Institute
State step 7) in, the calculation formula of the overall merit score of each feasibility distributed power source access scheme is：
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<msub>
<mi>w</mi>
<mi>k</mi>
</msub>
</mrow>
</mtd>
<mtd>
<mrow>
<mo>&ForAll;</mo>
<msub>
<mi>y</mi>
<mi>k</mi>
</msub>
<mo>></mo>
<mn>0</mn>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mrow>
<mo>&Exists;</mo>
<msub>
<mi>y</mi>
<mi>k</mi>
</msub>
<mo>=</mo>
<mn>0</mn>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>,</mo>
<mi>k</mi>
<mo>=</mo>
<mn>1</mn>
<mo>,</mo>
<mn>2</mn>
<mo>,</mo>
<mo>...</mo>
<mo>,</mo>
<mn>16</mn>
<mo>;</mo>
</mrow>
In formula：M is the overall merit score of distributed power source access scheme；ykSpecifically commented for distributed power source access scheme kth
Valency index score value；wkFor distributed power source access scheme kth specific targets weight.
9. it is a kind of be applied to as the distributed power source access scheme technology of any one of claim 1~8 methods described evaluate with than
Select system, it is characterised in that：It include a programming module, a data acquisition module, an assessment indicator system build module,
One Modeling of Distribution Network emulation module, an evaluation index computing module, a feasibility judge module, a comprehensive grading computing module with
And an optimal case selecting module；
The programming module is used to draft distributed power source access scheme；
The data acquisition module is used to obtain the scale of each distributed power source, mould in each distributed power source access scheme drafted
Type and parameter；
The assessment indicator system builds the assessment indicator system that module is used to set up distributed power source access；
The Modeling of Distribution Network emulation module is used to the power system containing distributed power source is modeled and emulated, and obtains each point
The service data of power distribution network under cloth plant-grid connection scheme；
The evaluation index computing module is used to, according to power distribution network operation data and assessment indicator system, calculate each distributed electrical
The evaluation index score of source access scheme；
The feasibility judge module is used for the evaluation index score according to each distributed power source access scheme, judges each distribution
The feasibility of plant-grid connection scheme；
The comprehensive grading computing module is used for the overall merit score for calculating the distributed power source access scheme of all feasibilities；
The optimal case selecting module is used for the overall merit score according to each feasibility distributed power source access scheme, selection
The distributed power source access scheme of highest scoring is optimal case.
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| CN109102196B (en) * | 2018-08-22 | 2022-01-28 | 国网经济技术研究院有限公司 | Power distribution network diversified load digestion capacity assessment method and system |
| CN109245170A (en) * | 2018-11-08 | 2019-01-18 | 国网能源研究院有限公司 | A kind of grid-connected case library design method of distributed generation resource of distribution close friend |
| CN109670720A (en) * | 2018-12-26 | 2019-04-23 | 国网河南省电力公司经济技术研究院 | A kind of active distribution network evaluation method containing distributed energy based on graded index |
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| CN111009894B (en) * | 2019-11-27 | 2023-03-21 | 国网山东省电力公司经济技术研究院 | Comparison and selection method and system for access scheme of power transmission and distribution equipment detection center |
| CN112199861A (en) * | 2020-10-29 | 2021-01-08 | 云南电网有限责任公司电力科学研究院 | Method for judging closed-loop power regulation feasibility of power distribution network |
| CN112199861B (en) * | 2020-10-29 | 2023-04-07 | 云南电网有限责任公司电力科学研究院 | Power distribution network closed-loop power regulation feasibility judgment method |
| CN113962608A (en) * | 2021-11-19 | 2022-01-21 | 国网山东省电力公司东营供电公司 | Evaluation system and evaluation method for distributed power supply access distribution network |
| CN113962608B (en) * | 2021-11-19 | 2023-04-18 | 国网山东省电力公司东营供电公司 | Evaluation system and evaluation method for distributed power supply access distribution network |
| CN114113870B (en) * | 2022-01-28 | 2022-04-26 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
| CN114113870A (en) * | 2022-01-28 | 2022-03-01 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
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