CN107832930A - A kind of active distribution network operation situation appraisal procedure based on improvement radar map - Google Patents
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Abstract
The invention discloses a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, establish active distribution system operation situation assessment indicator system, and provide the method for normalizing of every specific targets, the weight of indices is determined by Evaluation formula, every active distribution system operation situation evaluation index numerical value is marked into corresponding point by length on index axle, it is sequentially connected the peripheral point of each sector region, polygon radar map is obtained, comprehensive assessment is carried out to the evaluation result of all kinds of indexs according to polygon radar map.The present invention carries out comprehensive assessment so that active distribution system operation situation assessment result is concise, clear, directly perceived using the characteristic quantity calculating method for improving conventional radar figure method to the evaluation result of all kinds of indexs.
Description
Technical field
The present invention relates to a kind of based on the active distribution network operation situation appraisal procedure for improving radar map.
Background technology
The fast development of the new elements such as distributed power generation, flexible load, energy storage, trend distribution, voltage to distribution system
Horizontal, capacity of short circuit etc. causes to significantly affect, and adds the difficulty of power distribution network operational management.
Active distribution network is by setting rational supervision and access criterion, and the network of use flexibly to distributed energy
Structure and control technology are effectively managed distribution power flow.Situation Awareness refers to the metric data by distribution system
And prediction data, the state variation tendency of judgement system, comprehensive accurate control to power distribution network operation situation is realized, is to realize
The Information base of power distribution network active control and active management.
Radar map method can use the form of figure to express the quantitative relation of indices in assessment, and the result of assessment is vivid, straight
Connect, with reference to the Mathematical treatment to characteristics of image, can objectively carry out comprehensive assessment.
Active distribution network constitution element is numerous, and running status is complicated and changeable.Active distribution network Situation Awareness is needed to distribution
Multiple indexs of net carry out calculating analysis, and each index describes the different operation characteristics of distribution system respectively, while mutually closes again
Connection, add the difficulty of active distribution network operation situation evaluation, it is therefore desirable to establish a kind of energy Reasonable and active distribution system
The method of every operating index, effectively reflection active distribution system operation situation.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that a kind of based on the active distribution network operation situation for improving radar map
Appraisal procedure, the present invention provide every specific targets by establishing active distribution system operation situation assessment indicator system
Method for normalizing, the weight of indices is determined by Evaluation formula, using the characteristic quantity calculates for improving conventional radar figure method
Method, carries out comprehensive assessment to the evaluation results of all kinds of indexs, and the information that evaluation process avoids during data normalization is lost
Lose, while make it that active distribution system operation situation assessment result is concise, clear, directly perceived.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of active distribution network operation situation appraisal procedure based on improvement radar map, establish the operation of active distribution system
Situation assessment indicator system, and the method for normalizing of every specific targets is provided, indices are determined by Evaluation formula
Weight, every active distribution system operation situation evaluation index numerical value is marked into corresponding point by length on index axle, successively
The peripheral point of each sector region is connected, obtains polygon radar map, the evaluation result according to polygon radar map to all kinds of indexs
Carry out comprehensive assessment.
A kind of active distribution network operation situation appraisal procedure based on improvement radar map, comprises the following steps：
Step (1)：According to the purpose of active distribution network Construction and operation, economic index, feature of environmental protection index and security refer to
First class index is designated as, and two-level index is built according to each first class index, forms active distribution system operation situation appraisement system；
Step (2)：Every specific targets in active distribution system operation situation appraisement system are calculated, and are normalized
Processing；
Step (3)：The weight of every specific targets is determined using Evaluation formula；
Step (4)：Active distribution network operation situation evaluation radar map is drawn, active distribution network operation situation is carried out comprehensive
Close evaluation analysis.
Further, in the step (1), with reference to the purpose of active distribution network Construction and operation, by economic index, ring
The first class index of guarantor property index and safety indexes as active distribution network Situation Awareness postitallation evaluation index, while economy
Index includes via net loss and the two-level index of renewable distributed electrical source utilization rate, and it is totally inclined that safety indexes include voltage
The two-level index of load factor equilibrium degree between shifting degree, line load equilibrium degree and distribution transformer, form the operation of active distribution system
Situation appraisement system.
Further, in the step (2), line loss per unit and distributed electrical source utilization rate are passed through as active distribution system
Ji property index, line loss per unit are distribution system line loss and the ratio of distribution system burden with power, and line loss per unit is referred to using piecewise function
Mark carries out nondimensionalization processing, power output sum and each distribution of the distributed electrical source utilization rate for each distributed power source
The ratio of the rated output power sum of formula power supply.
Further, in the step (2), using node voltage quality as power distribution system secure index, saved calculating
, it is necessary to reflect that the out-of-limit influence and node voltage to quality of voltage of node voltage is located at simultaneously during point quality of voltage evaluation index
The good and bad situation of the fluctuation range quality of voltage of permission.
Further, in the step (2), using line load equilibrium degree as power distribution system secure index, evaluating
During line load equilibrium degree index, line load equilibrium degree index is used for evaluating whether the distribution being supported on each circuit closes
Reason, evaluates whether the load distribution on circuit is balanced to depend on two aspects, is on the one hand calculated load on each circuit
Whether distribution is uniform, is on the other hand the out-of-limit risk brought to power distribution network safe operation of analysis part circuit.
Further, in the step (2), using transformer load equilibrium degree as power distribution system secure index, according to
The relation of line load rate and threshold value determines that transformer load is out-of-limit and seriously refers to target value.
Further, in the step (3), the weight of each index is determined according to Evaluation formula, if comprehensive assessment
Inspection target number is n, and the Evaluation formula of proposition uses p kinds subjective weighting method and q kinds Objective Weight respectively to items first
Index carries out tax power, and master, objective weight Vector Groups are handled respectively based on probabilistic method, obtain subjective weight vectors and
Objective weight vector, then two vectors are synthesized, obtain final combining weights.
Further, in the step (3), the p using p subjective weight vectors as a uniformly distributed random variable
Individual sample, ask for it and it is expected and normalize, obtain subjective weight vectors；It is uniformly distributed using q objective weight vector as one
Q sample of stochastic variable, ask for it and it is expected and normalize, obtain objective weight vector.
Further, subjective weight vectors and objective weight vector are multiplied by respective probability coefficent, then divided by two respectively
Individual probability coefficent sum, obtains final combining weights.
Further, in the step (4), the sector region that does not wait is distributed each evaluation index according to weighted,
Each index corresponded in radar map sectorial area angle and its weight it is proportional, unit circle is done, with the angle of each index
Make ray successively, obtain the multiple points intersected with circle, the center of circle to the line between each point is index axle, is actively matched somebody with somebody every
Electric system operation situation evaluation index numerical value is marked corresponding point by length on index axle, is sequentially connected each sector region
Peripheral point, obtain polygon radar map.
In the step (4), comprehensive assessment index is that radar map corresponds to the area of polygon and putting down for polygon length
Side and product and unit circle area and unit circle girth square product ratio.
In the step (4), the area of polygon radar map is smaller, and active distribution system operation situation is better；Polygon
Radar map more tends to be round, and each index development is more balanced.
Compared with prior art, beneficial effects of the present invention are：
(1) present invention proposes the method for normalizing of active distribution system operation situation evaluation index, effectively utilizes operation
Experience setting target value, there is good practicality；
(2) present invention determines the weight of every operation situation evaluation index using Evaluation formula, improves determination weight
Reasonability；
(3) using the characteristic quantity calculating method for improving conventional radar figure method, the evaluation result of all kinds of indexs is integrated
Assess so that active distribution system operation situation assessment result is concise, clear, directly perceived.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, the application's
Schematic description and description is used to explain the application, does not form the improper restriction to the application.
Fig. 1 is the active distribution system operation situation appraisement system schematic diagram of the present invention；
Fig. 2 is the active distribution system operation situation evaluation method flow chart of the present invention.
Embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.Unless
Otherwise indicated, all technologies used herein and scientific terminology have and the application person of an ordinary skill in the technical field
The identical meanings being generally understood that.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise odd number shape
Formula is also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or
During " comprising ", it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
In the present invention, term as " on ", " under ", "left", "right", "front", "rear", " vertical ", " level ", " side ",
The orientation or position relationship of instructions such as " bottoms " are based on orientation shown in the drawings or position relationship, only to facilitate narration is originally
The relative invented each part or component structure relation and determined, not refers in particular to either component or element in the present invention, it is impossible to manage
Solve as limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " should be interpreted broadly, and expression can be fixed company
Connect or be integrally connected or be detachably connected；Can be joined directly together, can also be indirectly connected by intermediary.
Related scientific research or technical staff for this area, above-mentioned term in the present invention specific can be determined as the case may be
Implication, it is impossible to be interpreted as limitation of the present invention.
As background technology is introduced, there is that active distribution network constitution element is numerous, and running status is multiple in the prior art
It is miscellaneous changeable.Active distribution network Situation Awareness needs to carry out multiple indexs of power distribution network calculating analysis, and each index describes respectively
The different operation characteristics of distribution system, at the same it is again interrelated, add the difficulty of active distribution network operation situation evaluation not
Foot, in order to solve technical problem as above, present applicant proposes a kind of based on the active distribution network operation situation for improving radar map
Evaluation method, this method initially sets up active distribution system operation situation assessment indicator system, and provides every specific targets
Method for normalizing, the weight of indices is determined by Evaluation formula, using the characteristic quantity calculates for improving conventional radar figure method
Method, carries out comprehensive assessment to the evaluation results of all kinds of indexs, and the information that evaluation process avoids during data normalization is lost
Lose, while make it that active distribution system operation situation assessment result is concise, clear, directly perceived.
In a kind of typical embodiment of the application, as shown in Fig. 2 a kind of based on the active distribution for improving radar map
System operation situation evaluation method, is specifically included：
Step 1, active distribution system operation situation appraisement system is built；
Step 2, active distribution system operation situation is calculated to evaluate every specific targets and be normalized；
Step 3, the weight of indices is determined according to Evaluation formula；
Step 4, active distribution network operation situation evaluation radar map is drawn；
Step 5, evaluation analysis is carried out to active distribution network operation situation.
In step 1, with reference to the purpose of active distribution network Construction and operation, by economic index, feature of environmental protection index and security
The 31 grade of indexs of index as active distribution network Situation Awareness postitallation evaluation index, while economic index damages comprising network
Consumption and renewable 2 grades of indexs of distributed electrical source utilization rate 2, it is equal that safety indexes include voltage overall offset degree, line load
2 grades of indexs of load factor equilibrium degree 3 between weighing apparatus degree and distribution transformer.
In step 2, calculate active distribution system operation situation and evaluate every specific targets and be normalized, have
Body includes；
Step 2.1：Return line loss per unit as active distribution system economic index and the line loss per unit to being calculated
One change is handled：
Step 2.2：As active distribution system economic index and place is normalized in distributed electrical source utilization rate
Reason：
Step 2.3：As active distribution system feature of environmental protection index and place is normalized in distribution system CO2 emission index
Reason；
Step 2.4：Node voltage quality as power distribution system secure index and is normalized；
Step 2.5：Line load equilibrium degree as power distribution system secure index and is normalized；
Step 2.6：Transformer load equilibrium degree as power distribution system secure index and is normalized；
In step 2.1, the expression formula of line loss per unit is：
In formula：KlossFor line loss per unit, the active power and reactive power of branch road end, PloadIt is active negative for distribution system
Lotus, PlossFor distribution system line loss.
Nondimensionalization processing is carried out to line loss per unit index using piecewise function：
In formula：WithThe respectively minimum value and maximum of line loss per unit, its corresponding evaluation index are respectively 1 and 0,WithThe minimum value and maximum of line loss per unit reasonable index, its corresponding evaluation index are respectively respectivelyWithOn
Parameter is stated to determine according to the actual operating state for distribution system, according to operating experience by operations staff.
In step 2.2, distributed electrical source utilization rate can be expressed as：
In formula：NdgFor the number of Distributed Generation in Distribution System, Pi dgFor the power output of i-th of distributed power source,
Pi dg,NFor the rated output power of i-th of distributed power source.
Using distributed electrical source utilization rate as its evaluation index：
ydg=Kdg
(4) in step 2.3, distribution system CO2 emission indexIt can be expressed as：
In formula：NdgFor the number of Distributed Generation in Distribution System, Pi dgFor the power output of i-th of distributed power source,
For conventional power generation usage mode output unit power when CO2 discharge capacity,The unit output work of respectively i-th distributed power source
CO2 discharge capacity, P during ratesys,supThe power that distribution system obtains from higher level's power network.
Distribution system CO2 emission index evaluation indexesFor：
In formula：For the maximum of distribution system CO2 emission index, its corresponding evaluation index is 0,WithRespectively
For the lower limit and the upper limit of CO2 emission index reasonable intervals, its corresponding evaluation index is respectivelyWith
Further, in the step 2.4, distribution system node voltage index can be expressed as：
In formula：NvolFor the number of voltage observation station in power distribution network,It is i-th of out-of-limit situation of voltage observation station of reflection
Evaluation coefficient, yvol,iIt is located at the evaluation coefficient of situation in normal operation range, y for i-th of voltage observation station of reflectionvol,iCan be with
It is expressed as：
In formula：UminAnd UmaxThe respectively minimum value and maximum of node voltage, its corresponding evaluation index is 0,
UlowAnd UuppThe respectively lower and upper limit of the node voltage of defined, its corresponding evaluation index are yvol,sta。
Voltage out-of-limit severity indexIt can be expressed as：
Further, in the step 2.5, the line load equilibrium index of whole distribution system can be expressed as：
In formula：NlineTo observe the number of circuit in power distribution network,Be reflect that i-th line road loads out-of-limit situation be
Number, yline,iIt is located at the coefficient of situation in normal operation range for reflection i-th line road, the normal operation load of each circuit is equal
Weighing apparatus rate index yline,iIt can be described as：
In formula,For average line load rate, kline,iFor the line load rate on i-th line road, it is expressed as：
In formula：Sline,iFor the transimission power of i-th branch road,For the maximum transmission power of i-th branch road.
The out-of-limit severity index of line loadIt is expressed as：
Further, in the step 2.6, the transformer load equilibrium index of distribution system can be expressed as：
In formula：NtransFor the number of transformer in power distribution network,It is the reflection out-of-limit situation of i-th of transformer load
Evaluation coefficient, ytrans,iIt is located at the evaluation coefficient of situation in normal operation range for i-th of transformer of reflection, transformer is located at
The evaluation coefficient y of situation in normal operation rangetrans,iIt is expressed as：
In formula,For Averaging transformer load factor, kltrans,iFor the load factor of i-th of transformer, it is expressed as：
In formula：Strans,iFor the transimission power of i-th of transformer,For the capacity of i-th transformer.
The out-of-limit severity index of transformer loadIt is expressed as：
In step 3, the weight of indices is determined according to Evaluation formula, including：
Step 3.1：The weight of each index is determined according to Evaluation formula, if the inspection target number of comprehensive assessment is
N, the Evaluation formula of proposition carry out tax power to indices respectively using p kinds subjective weighting method and q kinds Objective Weight first,
Master, objective weight Vector Groups are handled respectively based on probabilistic method, obtain subjective weight vectors w'iWith objective weight to
Measure w'2, then two vectors are synthesized, obtain final combining weights w.
Step 3.2：Index Weights.Each index is assigned from p kinds subjective weighting method and q kinds objective weighted model respectively
Power, obtains subjective weight vectors w1, w2..., wpWith objective weight vector wp+1, wp+2..., wp+q, wherein wi=(w1i, w2i...,
wni)T。
Step 3.3：Weight vectors packet transaction.Using p subjective weight vectors as uniformly distributed random variable
P sample, ask for it and it is expected and normalize, obtain subjective weight vectors w'i.Similarly, objective weight vector w' is obtained2。
Step 3.4：Calculate combining weights.Combining weights w is asked for according to formula (1).Wherein w'iAnd w'2Probability take respectively
For a, b.
Wherein, probability coefficent a, b can determine according to operating experience.
In step 4, active distribution network operation situation evaluation radar map is drawn, including：
Step 4.1：The sector region that does not wait is distributed each evaluation index according to weighted.Assuming that inspection target
Number is n, the final combining weights w=(w obtained according to combination weighting method1, w2..., wn)T, i-th index is obtained in radar
The angle that sectorial area is corresponded in figure is θi=360 ωi；
Step 4.2：Unit circle is done, from center of circle O injection line OA, point A is met at circle, from OA, takes turns doing adjacent angular
θi=360 ωiRemaining 5 rays, respectively OB, OC, OD, OE, OF.Take turns doing fan-shaped AOB, BOC ..., FOA it is diagonal
Line, P is met at circle1、P2、…、P6, with OP1、 OP2、…、OP6For index axle
Step 4.3：Every active distribution system operation situation evaluation index numerical value on index axle is marked into phase by length
The point answered, the peripheral point of each sector region is sequentially connected, obtains polygon radar map.
The detailed process of the step (5), including：
In step 5, evaluation analysis is carried out to active distribution network operation situation, including：
Step 5.1：The area of polygon radar map is smaller, and active distribution system operation situation is better；Polygon radar map
More tend to be round, each index development is more balanced.
Step 5.2：Definition quantifies comprehensive assessment index K.
Wherein S corresponds to the area of polygon, the quadratic sum that L grows for polygon, S for radar mapCFor the face of unit circle
Product, LCFor square of the girth of unit circle.
Step 5.3：Appraisal procedure directly uses K values to enter as final assessed value to active distribution system operation situation
Row qualitative assessment, according to algorithm principle, if K ＜ 1, it is believed that comprehensive assessment result is qualified.Can also be to active distribution
System operation situation carries out qualitative evaluation, by classification, the numerical intervals residing for comparative assessment result, obtain corresponding to it etc.
Level.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made it is any
Modification, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not the present invention is protected
The limitation of scope, one of ordinary skill in the art should be understood that on the basis of technical scheme, people in the art
Member need not pay the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (10)
1. it is a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, it is characterized in that：Establish active power distribution system
System operation situation assessment indicator system, and the method for normalizing of every specific targets is provided, pass through Evaluation formula and determine items
The weight of index, every active distribution system operation situation evaluation index numerical value is marked on index axle by length corresponding
Point, the peripheral point of each sector region is sequentially connected, obtains polygon radar map, all kinds of indexs are commented according to polygon radar map
Valency result carries out comprehensive assessment.
2. it is a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, it is characterized in that：Comprise the following steps：
Step (1)：According to the purpose of active distribution network Construction and operation, economic index, feature of environmental protection index and safety indexes are
First class index, and two-level index is built according to each first class index, form active distribution system operation situation appraisement system；
Step (2)：Every specific targets in active distribution system operation situation appraisement system are calculated, and are normalized；
Step (3)：The weight of every specific targets is determined using Evaluation formula；
Step (4)：Active distribution network operation situation evaluation radar map is drawn, overall merit is carried out to active distribution network operation situation
Analysis.
It is 3. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (1), with reference to the purpose of active distribution network Construction and operation, by economic index, feature of environmental protection index and security
First class index of the index as active distribution network Situation Awareness postitallation evaluation index, at the same economic index include via net loss and
The two-level index of renewable distributed electrical source utilization rate, safety indexes include voltage overall offset degree, line load equilibrium degree
And between distribution transformer load factor equilibrium degree two-level index, formed active distribution system operation situation appraisement system.
It is 4. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (2), using line loss per unit and distributed electrical source utilization rate as active distribution system economic index, line loss per unit
For distribution system line loss and the ratio of distribution system burden with power, line loss per unit index is carried out at nondimensionalization using piecewise function
Reason, distributed electrical source utilization rate are the power output sum of each distributed power source and the rated output work(of each distributed power source
The ratio of rate sum.
It is 5. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (2), using node voltage quality as power distribution system secure index, evaluated in calculate node quality of voltage
, it is necessary to reflect the out-of-limit influence and node voltage to quality of voltage of node voltage positioned at the fluctuation range electricity allowed simultaneously during index
Press the good and bad situation of quality.
It is 6. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (2), using line load equilibrium degree as power distribution system secure index, in evaluation line load equilibrium degree
During index, whether line load equilibrium degree index is reasonable for evaluating the distribution being supported on each circuit, evaluates on circuit
Whether load distribution is balanced to depend on two aspects, is on the one hand whether distribution of the calculated load on each circuit be uniform, separately
On the one hand it is the out-of-limit risk brought to power distribution network safe operation of analysis part circuit.
It is 7. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (3), the weight of each index is determined according to Evaluation formula, if the inspection target number of comprehensive assessment is
N, the Evaluation formula of proposition carry out tax power, base to indices respectively using p kinds subjective weighting method and q kinds Objective Weight first
Master, objective weight Vector Groups are handled respectively in probabilistic method, obtain subjective weight vectors and objective weight vector, then it is right
Two vectors are synthesized, and obtain final combining weights.
It is 8. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (3), using p subjective weight vectors as p sample of a uniformly distributed random variable, its phase is asked for
Hope and normalize, obtain subjective weight vectors；The q sample using q objective weight vector as a uniformly distributed random variable
This, asks for it and it is expected and normalize, and obtains objective weight vector；Subjective weight vectors and objective weight vector are multiplied by respectively respectively
From probability coefficent, then divided by two probability coefficent sums, obtain final combining weights.
It is 9. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (4), the sector region that does not wait is distributed each evaluation index according to weighted, each index is in radar
It is proportional that angle and its weight of sectorial area are corresponded in figure, unit circle is done, ray is made with the angle of each index successively, obtained
The multiple points intersected with circle, the center of circle to the line between each point is index axle, and every active distribution system operation situation is commented
Valency index value is marked corresponding point by length on index axle, is sequentially connected the peripheral point of each sector region, is obtained polygon
Radar map.
It is 10. as claimed in claim 2 a kind of based on the active distribution network operation situation appraisal procedure for improving radar map, its feature
It is：In the step (4), comprehensive assessment index is the area and the quadratic sum of polygon length that radar map corresponds to polygon
The girth of the area and unit circle of product and unit circle square product ratio；
The area of polygon radar map is smaller, and active distribution system operation situation is better；Polygon radar map more tends to be round, respectively refers to
Mark development is more balanced.
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| CN110277835A (en) * | 2019-07-03 | 2019-09-24 | 浙江大学 | A kind of low-voltage customer overvoltage risk monitoring method based on power information acquisition system |
| CN110310009A (en) * | 2019-05-29 | 2019-10-08 | 国网安徽省电力有限公司合肥供电公司 | A kind of alarm of dispatching of power netwoks operation risk and panorama appraisal procedure |
| CN110348664A (en) * | 2019-04-15 | 2019-10-18 | 中国人民解放军空军工程大学 | A kind of antiriot weapon System Combat Effectiveness appraisal procedure based on radar map method |
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| CN113324583A (en) * | 2021-05-26 | 2021-08-31 | 国网辽宁省电力有限公司电力科学研究院 | State evaluation method and system for communication module of distribution automation equipment |
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| CN109063187A (en) * | 2018-08-28 | 2018-12-21 | 成都智库二八六信息技术有限公司 | A method of allow Regional Contradiction to visualize and quantify |
| CN110348664A (en) * | 2019-04-15 | 2019-10-18 | 中国人民解放军空军工程大学 | A kind of antiriot weapon System Combat Effectiveness appraisal procedure based on radar map method |
| CN110310009A (en) * | 2019-05-29 | 2019-10-08 | 国网安徽省电力有限公司合肥供电公司 | A kind of alarm of dispatching of power netwoks operation risk and panorama appraisal procedure |
| CN110189033A (en) * | 2019-05-31 | 2019-08-30 | 国网山东省电力公司经济技术研究院 | A kind of power distribution network As-Is Assessment and diagnostic method based on layering radar map method |
| CN110277835A (en) * | 2019-07-03 | 2019-09-24 | 浙江大学 | A kind of low-voltage customer overvoltage risk monitoring method based on power information acquisition system |
| CN110365049A (en) * | 2019-07-25 | 2019-10-22 | 天津大学 | A kind of static quantization analysis method of active distribution system feeder line flexibility |
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| CN111985819B (en) * | 2020-08-23 | 2024-04-30 | 哈尔滨理工大学 | Industrial dust explosion risk evaluation method |
| CN112783939A (en) * | 2020-12-31 | 2021-05-11 | 广东电网有限责任公司 | Low-voltage distribution network running state evaluation method based on data mining |
| CN113324583A (en) * | 2021-05-26 | 2021-08-31 | 国网辽宁省电力有限公司电力科学研究院 | State evaluation method and system for communication module of distribution automation equipment |
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