CN105469194A - Power distribution network main equipment operation efficiency evaluation method based on load duration curve - Google Patents

Power distribution network main equipment operation efficiency evaluation method based on load duration curve Download PDF

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CN105469194A
CN105469194A CN201510794402.8A CN201510794402A CN105469194A CN 105469194 A CN105469194 A CN 105469194A CN 201510794402 A CN201510794402 A CN 201510794402A CN 105469194 A CN105469194 A CN 105469194A
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power distribution
distribution network
main equipment
network main
operational efficiency
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刘伟
陈海
崔艳妍
李国良
马丽
王军
林建军
苑帅
张伟
苏剑
刘军
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
State Grid Jiangsu Electric Power Co Ltd
Taizhou Power Supply Co of Jiangsu Electric Power Co
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
State Grid Jiangsu Electric Power Co Ltd
Taizhou Power Supply Co of Jiangsu Electric Power Co
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Abstract

The invention provides a power distribution network main equipment operation efficiency evaluation method based on a load duration curve. The method comprises steps that, the load duration curve and relevant parameters of power distribution network main equipment are acquired; operation efficiency of the power distribution network main equipment is evaluated. According to the power distribution network main equipment operation efficiency evaluation method based on the load duration curve, operation security and economic performance of the power distribution network main equipment are comprehensively considered, operation sequence characteristics of the power distribution network main equipment can further be reflected, objective evaluation on the operation efficiency of the power distribution network main equipment can be realized, bases are provided for analyzing weak links of operation efficiency, and improvement of operation efficiency of the power distribution network main equipment is facilitated.

Description

A kind of power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve
Technical field
The present invention relates to a kind of evaluation method, be specifically related to a kind of power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve.
Background technology
The power supply enterprise of China uses " three rates " index to weigh the quality of power distribution network performance usually, i.e. reliability, the rate of qualified voltage of reflecting voltage quality, the line loss per unit of reflection performance driving economy of reflection power supply continuation, if in conjunction with power supply capacity index of correlation (as capacity-load ratio etc.), substantially comparatively comprehensively evaluate and analyze can be carried out to the performance of power distribution network in quality and quantity.But for power distribution network operational efficiency problem, domesticly in production practices, adopt qualitative analysis at present more, lack further investigation and application always, index and relevant evaluation method thereof for reflecting power distribution network operational efficiency do not receive abundant concern yet, power distribution network operational efficiency evaluate correlative study operability and guiding in be still weak, objective and rational quantitative basis and analyse in depth not enough, accurately can not reflect power distribution network operational efficiency situation, also be difficult to work out relevant improvement and input measure, the needs of Modern power distribution net demand for development and company's lean management cannot be adapted to.
The development of developed countries power distribution network is comparatively ripe, substantially completes by paying close attention to technical merit to the transformation paying close attention to economy, more focuses on by analyzing and promote lean management that existing assets efficiency is enterprise and investment decision provides support.China's power distribution network development and construction also progressively will enter the stage of ripeness, requires more and more higher to lifting operational efficiency and lean management level.
All in all, in power distribution network and the evaluation of main equipment operational efficiency thereof, the problem that existing index and method can reflect often is confined in a certain respect; Based on comprehensive assessment index and the method for analytical hierarchy process, often comprise more manual intervention, thus cause evaluation criteria and result to lose objectivity to a certain extent; The index weights of DEA process is variable in a model, and tried to achieve by the actual desired value of each scheme, not necessarily tally with the actual situation, can only judge the relative effectiveness of each scheme, quantity of information is less, there will be the situation that a lot of scenario outcomes is identical; In addition, the running status of power distribution network constantly changes along with passage of time, existing index based on load etc. at present, only can characterize the quiescent conditions under section sometime, and accurately can not reflect the overall condition of power distribution network operational efficiency dynamic change on time dimension, there is larger limitation; Investigation and application work focuses mostly in the evaluation and application aspect of plant factor, deeply do not think deeply the difference between utilization factor and operational efficiency and relation, and the relation between electric network security and economy, also do not solve the relevant evaluation problem taking into account the overall input-output ratio of power distribution network, the aspect involved by the evaluation criterion provided is also comparatively simple; Also be weak in the operability of application aspect, planning aspect is confined to the directive function of power distribution network business more, be difficult to adapt to lean management expectancy.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve, power distribution network main equipment safety in operation and economy are considered, and power distribution network main equipment operation temporal aspect can be reacted, to realize the objective evaluation to power distribution network main equipment operational efficiency, for the analysis of operational efficiency weak link provides foundation, promote the lifting of power distribution network main equipment operational efficiency.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The invention provides a kind of power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve, said method comprising the steps of:
Step 1: the based model for load duration curve and the correlation parameter that obtain power distribution network main equipment;
Step 2: the operational efficiency evaluating power distribution network main equipment.
Described step 1 comprises the following steps:
Step 1-1: gather the load curve of power distribution network main equipment in setting-up time from energy management system and power information acquisition system, and by the load curve of collection according to the based model for load duration curve obtained after order sequence from big to small in setting-up time;
Step 1-2: according to the topological structure of power distribution network main equipment, main wiring mode, running environment and repair and maintenance requirement, determine the safe operation limit value P of power distribution network main equipment u;
Step 1-3: according to nameplate parameter and the service requirement of power distribution network main equipment, determines the economical operation limit value P of power distribution network main equipment d.
The correlation parameter of described power distribution network main equipment comprises the safe operation limit value P of power distribution network main equipment uwith the economical operation limit value P of power distribution network main equipment d.
Described step 2 comprises the following steps:
Step 2-1: the based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment;
Step 2-2: the operational efficiency calculating power distribution network main equipment;
Step 2-3: determine that upper, middle and lower segment affects situation to power distribution network main equipment operational efficiency.
In described step 2-1, the based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment, comprises:
With the safe operation limit value P of power distribution network main equipment ufor the upper limit, with the economical operation limit value P of power distribution network main equipment dfor lower limit, the based model for load duration curve of electrical network main equipment is divided into upper, middle and lower segment, namely exceedes the economical operation limit value P of power distribution network main equipment ube epimere, between the economical operation limit value P of power distribution network main equipment dwith the safe operation limit value P of power distribution network main equipment ubetween be stage casing, lower than the economical operation limit value P of power distribution network main equipment dbe hypomere.
In described step 2-2, calculate the operational efficiency of power distribution network main equipment, have:
E E R = ( S E 1 S 1 ) · ρ 1 + ( S 2 S E 2 ) · ρ 2 + ( S 3 S E 3 ) · ρ 3 - - - ( 1 )
Wherein, S e1, S e2, S e3to represent in evaluation cycle that power distribution network main equipment operates in the section of upper, middle and lower respectively to meet the maximum of safe operation limit value and carry electricity, three does not all comprise maximum that power distribution network main equipment bears in the time period of load transfer task and carries electricity;
S 1, S 2, S 3represent that power distribution network main equipment operates in the actual power amount of upper, middle and lower section in evaluation cycle respectively, three does not all comprise power distribution network main equipment and bears conveying electricity in the time period of load transfer task;
ρ 1, ρ 2, ρ 3represent that power distribution network main equipment operates in the efficiency weight coefficient of upper, middle and lower section respectively, namely power distribution network main equipment operates in the proportion that the upper, middle and lower section continued power time accounts for evaluation cycle;
Use S eto represent in evaluation cycle that power distribution network main equipment meets the maximum of safe operation limit value and carry electricity, and S e=S e1+ S e2+ S e3; The actual power amount of power distribution network main equipment in evaluation cycle is represented with S, and S=S 1+ S 2+ S 3; So formula (1) can be written as:
E E R = S E 1 2 S 1 + S 2 + S 3 S E 1 + S E 2 + S E 3 = S S E - ρ 1 · ( S 1 S E 1 - S E 1 S 1 ) - - - ( 2 )
Wherein, represent the Rate of average load of power distribution network main equipment based on safe operation limit value, represent security risk penalty factor.
In described step 2-3, based on the operational efficiency of power distribution network main equipment, the formation situation of analysis load duration curve upper, middle and lower segment, can obtain upper, middle and lower segment affects situation to power distribution network main equipment operational efficiency.
Compared with immediate prior art, technical scheme provided by the invention has following beneficial effect:
The invention provides the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve, can under the prerequisite considering safety in operation and economy, realize to power distribution network main equipment operational efficiency objective and effectively evaluating, can be the analysis of operational efficiency weak link and theory support and quantitative basis are provided, for the key business links such as distribution network planning construction, purchase of goods and materials, management and running provide aid decision making support, for the lifting of operational efficiency plays a significant role.
Accompanying drawing explanation
Fig. 1 is the power distribution network main equipment operational efficiency evaluation method process flow diagram based on based model for load duration curve in the embodiment of the present invention;
The based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment schematic diagram in the embodiment of the present invention by Fig. 2;
Fig. 3 is the based model for load duration curve schematic diagram of 2 medium-voltage lines in power distribution network in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The invention provides a kind of power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve, as Fig. 1, said method comprising the steps of:
Step 1: the based model for load duration curve and the correlation parameter that obtain power distribution network main equipment;
Step 2: the operational efficiency evaluating power distribution network main equipment.
Described step 1 comprises the following steps:
Step 1-1: gather the load curve of power distribution network main equipment in setting-up time from energy management system and power information acquisition system, and by the load curve of collection according to the based model for load duration curve obtained after order sequence from big to small in setting-up time;
Step 1-2: according to the topological structure of power distribution network main equipment, main wiring mode, running environment and repair and maintenance requirement, determine the safe operation limit value P of power distribution network main equipment u;
Step 1-3: according to nameplate parameter and the service requirement of power distribution network main equipment, determines the economical operation limit value P of power distribution network main equipment d.
The correlation parameter of described power distribution network main equipment comprises the safe operation limit value P of power distribution network main equipment uwith the economical operation limit value P of power distribution network main equipment d.
Described step 2 comprises the following steps:
Step 2-1: the based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment;
Step 2-2: the operational efficiency calculating power distribution network main equipment;
Step 2-3: determine that upper, middle and lower segment affects situation to power distribution network main equipment operational efficiency.
In described step 2-1, the based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment, comprises:
With the safe operation limit value P of power distribution network main equipment ufor the upper limit, with the economical operation limit value P of power distribution network main equipment dfor lower limit is (if can not learn nameplate parameter and the service requirement of power distribution network main equipment, then with load value corresponding during underloading for lower limit), the based model for load duration curve of electrical network main equipment is divided into upper, middle and lower segment, namely exceedes the economical operation limit value P of power distribution network main equipment ube epimere, between the economical operation limit value P of power distribution network main equipment dwith the safe operation limit value P of power distribution network main equipment ubetween be stage casing, lower than the economical operation limit value P of power distribution network main equipment dbe hypomere, as Fig. 2, T represent evaluation cycle (should deduct the time bearing load transfer task), P 1.0expression considers the maximum load (taking no account of N-1 safety criterion) of carrying under the conditions such as equipment rated capacity, running environment, repair and maintenance requirement; The equipment (the single radial line in such as E class service area) of N-1 safety criterion is met, P for not mandatory requirement u=P 1.0; S 1.0represent that the design maximum of equipment in evaluation cycle can carry electricity (consider the conditions such as equipment rated capacity, running environment, repair and maintenance requirement, take no account of N-1 safety criterion), i.e. P 1.0to the integration of evaluation cycle T.
Ideally, when power distribution network main equipment continuous service is at P utime (based model for load duration curve and P ucomplete overlap), will have best operational efficiency, now both met the safe operation regulation of power distribution network, also take full advantage of the active volume of power distribution network main equipment under safe operation limit value, operational efficiency is best simultaneously.
When lower than P uduring operation, do not make full use of the active volume of power distribution network main equipment under safe operation limit value;
When higher than P uduring operation, power distribution network main equipment has potential security risk, and basic security operating provisions may be violated in traffic control aspect.
Therefore, only have when equipment continuous service is at P utime, its operational efficiency value is just 1, when below or above P utime (relative to P ucreate deviation), its operational efficiency is all less than 1, need carry out " punishment " to a certain degree.And P dmajor significance be that the situation for passing judgment on apparatus of load too low (namely economy is poor) provides support foundation.
In described step 2-2, calculate the operational efficiency of power distribution network main equipment, have:
E E R = ( S E 1 S 1 ) · ρ 1 + ( S 2 S E 2 ) · ρ 2 + ( S 3 S E 3 ) · ρ 3 - - - ( 1 )
Wherein, S e1, S e2, S e3to represent in evaluation cycle that power distribution network main equipment operates in the section of upper, middle and lower respectively to meet the maximum of safe operation limit value and carry electricity, three does not all comprise maximum that power distribution network main equipment bears in the time period of load transfer task and carries electricity;
S 1, S 2, S 3represent that power distribution network main equipment operates in the actual power amount of upper, middle and lower section in evaluation cycle respectively, three does not all comprise power distribution network main equipment and bears conveying electricity in the time period of load transfer task;
ρ 1, ρ 2, ρ 3represent that power distribution network main equipment operates in the efficiency weight coefficient of upper, middle and lower section respectively, namely power distribution network main equipment operates in the proportion that the upper, middle and lower section continued power time accounts for evaluation cycle;
Use S eto represent in evaluation cycle that power distribution network main equipment meets the maximum of safe operation limit value and carry electricity, and S e=S e1+ S e2+ S e3; The actual power amount of power distribution network main equipment in evaluation cycle is represented with S, and S=S 1+ S 2+ S 3; So formula (1) can be written as:
E E R = S E 1 2 S 1 + S 2 + S 3 S E 1 + S E 2 + S E 3 = S S E - ρ 1 · ( S 1 S E 1 - S E 1 S 1 ) - - - ( 2 )
must be a number being less than or equal to 1, only at S 1=S e1and S 2=S e2and S 3=S e3time EER be just 1, now the based model for load duration curve of power distribution network main equipment is one and P uthe straight line overlapped. represent the Rate of average load of power distribution network main equipment based on safe operation limit value, represent security risk penalty factor.Visible it is relevant with the 1st section of machine utilization duration curve, and it is not just 0 that this factor only exceeds when its safe operation limit value runs at equipment, is 0 in other situations.Visible, when calculating the operational efficiency EER of power distribution network main equipment, the Rate of average load based on safe operation limit value and security risk penalty factor only need be calculated.But consider subsequent analysis work, still need to be decomposed into three parts by formula (1), and preserve intermediate result, can be the genetic analysis of operational efficiency deviation like this and lay the foundation.
In described step 2-3, based on the operational efficiency of power distribution network main equipment, the formation situation of analysis load duration curve upper, middle and lower segment, can obtain upper, middle and lower segment affects situation to power distribution network main equipment operational efficiency.For a certain regional distribution network object, statistical study method can be utilized to carry out the comparative analysis of the various dimensions (city rural power grids, power supply area, regional function type) of system and device level; With the type of equipment, cross section (capacity), electric network composition, assets class, year of putting into operation be limited to core words section, carry out association analysis; Analyze the correlativity of operational efficiency and part throttle characteristics; Analyze the difference of same category of device operational efficiency per year, specify planning construction emphasis; Analyze the same category of device operational efficiency difference having communication relationship, by optimizing operation balanced load distribution etc.; Analyze the degree of association of the index such as operational efficiency and power supply reliability, power supply capacity, distributed power source permeability, for relevant aid decision making provides certain reference etc.
Embodiment
Choose 4 medium-voltage lines in the actual power distribution network in somewhere, the model of these circuits is LGJ-240, and is the simply connected network mode of connection.
Article (1) 4, the based model for load duration curve of medium-voltage line as shown in Figure 3;
(2) according to wire type correlation parameter and service condition, setting P ufor 4MVA, setting P dfor 2.4MVA;
(3) formula (1) and formula (2) is utilized respectively, calculate the operational efficiency value EER of 4 circuits, equipment operating efficiency evaluation result is as shown in table 1 (with formula (1)) and table 2 (with formula (2)):
Table 1
Table 2
(4) analyze: because formula (1) and formula (2) are only different in the implication and the form of expression of index ingredient, in essence also indifference, therefore table 1 is consistent with the EER result of calculation of bar circuit each in table 2.Wherein, the ρ of circuit 1 3value is up to 0.9868, and the visible circuit load factor overwhelming majority time is all lower than P d, therefore its EER value minimum (0.3361); And the ρ of circuit 4 2value is 0.529, maximum in 4 circuits, illustrates that its load factor is at P dand P ubetween time accounting maximum, its security risk penalty factor is also only 0.04 in addition, therefore operational efficiency the highest (0.7518); Alternative route 2 and circuit 3 can find, the two " Rate of average load based on safe operation limit value " is all about 0.57, but circuit 2 load factor exceeds P utime accounting (ρ 1) larger, its security risk penalty factor is about 0.1092, and far above circuit 3 (8.8E-07), therefore the EER value (0.4622) of circuit 2 is starkly lower than the EER value (0.5708) of circuit 3.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field still can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.

Claims (7)

1., based on a power distribution network main equipment operational efficiency evaluation method for based model for load duration curve, it is characterized in that: said method comprising the steps of:
Step 1: the based model for load duration curve and the correlation parameter that obtain power distribution network main equipment;
Step 2: the operational efficiency evaluating power distribution network main equipment.
2. the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve according to claim 1, is characterized in that: described step 1 comprises the following steps:
Step 1-1: gather the load curve of power distribution network main equipment in setting-up time from energy management system and power information acquisition system, and by the load curve of collection according to the based model for load duration curve obtained after order sequence from big to small in setting-up time;
Step 1-2: according to the topological structure of power distribution network main equipment, main wiring mode, running environment and repair and maintenance requirement, determine the safe operation limit value P of power distribution network main equipment u;
Step 1-3: according to nameplate parameter and the service requirement of power distribution network main equipment, determines the economical operation limit value P of power distribution network main equipment d.
3. the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve according to claim 2, is characterized in that: the correlation parameter of described power distribution network main equipment comprises the safe operation limit value P of power distribution network main equipment uwith the economical operation limit value P of power distribution network main equipment d.
4. the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve according to claim 1, is characterized in that: described step 2 comprises the following steps:
Step 2-1: the based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment;
Step 2-2: the operational efficiency calculating power distribution network main equipment;
Step 2-3: determine that upper, middle and lower segment affects situation to power distribution network main equipment operational efficiency.
5. the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve according to claim 4, is characterized in that: in described step 2-1, the based model for load duration curve of power distribution network main equipment is divided into upper, middle and lower segment, comprises:
With the safe operation limit value P of power distribution network main equipment ufor the upper limit, with the economical operation limit value P of power distribution network main equipment dfor lower limit, the based model for load duration curve of electrical network main equipment is divided into upper, middle and lower segment, namely exceedes the economical operation limit value P of power distribution network main equipment ube epimere, between the economical operation limit value P of power distribution network main equipment dwith the safe operation limit value P of power distribution network main equipment ubetween be stage casing, lower than the economical operation limit value P of power distribution network main equipment dbe hypomere.
6. the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve according to claim 4, is characterized in that: in described step 2-2, calculates the operational efficiency of power distribution network main equipment, has:
E E R = ( S E 1 S 1 ) · ρ 1 + ( S 2 S E 2 ) · ρ 2 + ( S 3 S E 3 ) · ρ 3 - - - ( 1 )
Wherein, S e1, S e2, S e3to represent in evaluation cycle that power distribution network main equipment operates in the section of upper, middle and lower respectively to meet the maximum of safe operation limit value and carry electricity, three does not all comprise maximum that power distribution network main equipment bears in the time period of load transfer task and carries electricity;
S 1, S 2, S 3represent that power distribution network main equipment operates in the actual power amount of upper, middle and lower section in evaluation cycle respectively, three does not all comprise power distribution network main equipment and bears conveying electricity in the time period of load transfer task;
ρ 1, ρ 2, ρ 3represent that power distribution network main equipment operates in the efficiency weight coefficient of upper, middle and lower section respectively, namely power distribution network main equipment operates in the proportion that the upper, middle and lower section continued power time accounts for evaluation cycle;
Use S eto represent in evaluation cycle that power distribution network main equipment meets the maximum of safe operation limit value and carry electricity, and S e=S e1+ S e2+ S e3; The actual power amount of power distribution network main equipment in evaluation cycle is represented with S, and S=S 1+ S 2+ S 3; So formula (1) can be written as:
E E R = S E 1 2 S 1 + S 2 + S 3 S E 1 + S E 2 + S E 3 = S S E - ρ 1 · ( S 1 S E 1 - S E 1 S 1 ) - - - ( 2 )
Wherein, represent the Rate of average load of power distribution network main equipment based on safe operation limit value, represent security risk penalty factor.
7. the power distribution network main equipment operational efficiency evaluation method based on based model for load duration curve according to claim 4, it is characterized in that: in described step 2-3, based on the operational efficiency of power distribution network main equipment, the formation situation of analysis load duration curve upper, middle and lower segment, can obtain upper, middle and lower segment affects situation to power distribution network main equipment operational efficiency.
CN201510794402.8A 2015-11-18 2015-11-18 Power distribution network main equipment operation efficiency evaluation method based on load duration curve Pending CN105469194A (en)

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CN107451705A (en) * 2016-05-31 2017-12-08 中国电力科学研究院 A kind of evaluation criterion formulating method of distribution system operational efficiency
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CN107748965A (en) * 2017-11-07 2018-03-02 国网山东省电力公司聊城供电公司 Distribution network failure training evaluation method based on information similarity
CN108510199A (en) * 2018-04-08 2018-09-07 北京中电普华信息技术有限公司 A kind of transmission cross-section efficiency of operation evaluation method and device
CN108665133A (en) * 2017-03-31 2018-10-16 中国电力科学研究院 A kind of construction method and system of distribution system operational efficiency evaluation model
CN108921429A (en) * 2018-06-29 2018-11-30 中国能源建设集团广东省电力设计研究院有限公司 Method is determined with controllable energy source unit electrical power in the fixed electric type intelligent micro-grid of hot/cold
CN109345147A (en) * 2018-11-23 2019-02-15 南方电网科学研究院有限责任公司 A kind of appraisal procedure, system and the device of power distribution network transformer station high-voltage side bus efficiency
CN109492957A (en) * 2019-01-10 2019-03-19 南方电网科学研究院有限责任公司 A kind of evaluation method, device and the storage medium of distribution network line operational efficiency
CN112419084A (en) * 2020-11-11 2021-02-26 广东电网有限责任公司广州供电局 Method and device for optimizing utilization rate of power distribution network equipment

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CN106022583A (en) * 2016-05-12 2016-10-12 中国电力科学研究院 Electric power communication service risk calculation method and system based on fuzzy decision tree
CN106096815A (en) * 2016-05-31 2016-11-09 中国电力科学研究院 A kind of power distribution network operational efficiency Impact analysis method
CN107451705A (en) * 2016-05-31 2017-12-08 中国电力科学研究院 A kind of evaluation criterion formulating method of distribution system operational efficiency
CN108665133A (en) * 2017-03-31 2018-10-16 中国电力科学研究院 A kind of construction method and system of distribution system operational efficiency evaluation model
CN107730076A (en) * 2017-09-12 2018-02-23 国网能源研究院有限公司 A kind of regional distribution network equipment complex utilization ratio analysis method
CN107730076B (en) * 2017-09-12 2021-06-29 国网能源研究院有限公司 Method for analyzing comprehensive utilization efficiency of regional distribution network equipment
CN107748965B (en) * 2017-11-07 2021-06-01 国网山东省电力公司聊城供电公司 Power distribution network fault training evaluation method based on information similarity
CN107748965A (en) * 2017-11-07 2018-03-02 国网山东省电力公司聊城供电公司 Distribution network failure training evaluation method based on information similarity
CN108510199A (en) * 2018-04-08 2018-09-07 北京中电普华信息技术有限公司 A kind of transmission cross-section efficiency of operation evaluation method and device
CN108921429B (en) * 2018-06-29 2021-06-08 中国能源建设集团广东省电力设计研究院有限公司 Method for determining electric power of controllable energy source unit in heat/cold power-determination type intelligent micro-grid
CN108921429A (en) * 2018-06-29 2018-11-30 中国能源建设集团广东省电力设计研究院有限公司 Method is determined with controllable energy source unit electrical power in the fixed electric type intelligent micro-grid of hot/cold
CN109345147A (en) * 2018-11-23 2019-02-15 南方电网科学研究院有限责任公司 A kind of appraisal procedure, system and the device of power distribution network transformer station high-voltage side bus efficiency
CN109492957A (en) * 2019-01-10 2019-03-19 南方电网科学研究院有限责任公司 A kind of evaluation method, device and the storage medium of distribution network line operational efficiency
CN109492957B (en) * 2019-01-10 2022-03-15 南方电网科学研究院有限责任公司 Method and device for evaluating operating efficiency of power distribution network line and storage medium
CN112419084A (en) * 2020-11-11 2021-02-26 广东电网有限责任公司广州供电局 Method and device for optimizing utilization rate of power distribution network equipment
CN112419084B (en) * 2020-11-11 2022-11-29 广东电网有限责任公司广州供电局 Method and device for optimizing utilization rate of power distribution network equipment

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