CN110147960A - A kind of enterprise's multidimensional distribution health index control method - Google Patents
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Abstract
The present invention discloses a kind of enterprise's multidimensional distribution health index control method, it is the following steps are included: step 1, it is required according to power quality, from voltage deviation, frequency departure, tri-phase unbalance factor, power factor, mains by harmonics, load factor, voltage fluctuation and flicker and voltage dip and short interruptions, totally eight dimensions formulate grading and standards of grading；Step 2, to enterprise's remote measurement and control terminal (RTU) large number of situation, the layering thinking being successively incremented by using bottom, the electrical specifications data acquired to every layer are calculated, and according to the electrical grading of formulation and standards of grading, the grading of enterprise's electrical specifications and scoring are obtained；Step 3 carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result using expert judging method, obtains enterprise's whole synthesis distribution health index, and shown and graded with octagon background color.
Description
Technical field
The present invention relates to a kind of control method electrical power stabilization technical fields, and in particular to a kind of enterprise's multidimensional distribution health refers to
Digital control method.
Background technique
Various electric energy events in power grid often imply that some power grid qualities are abnormal, with internet big data and people
The development of work intellectual technology, with on-line monitoring technique Real-time Feedback and precognition business electrical electric energy health status, in business electrical
Electric energy arranges maintenance to can effectively ensure that electric power netting safe running before occurring extremely, economic loss caused by reducing because of electric energy exception.
By the retrieval discovery to existing technical literature, a kind of power distribution network power consumer health index assessment device and control
Method invention a kind of user health Index Assessment device, Patent No. 201410302040 have only carried out voltage, the electricity of user
The acquisitions such as stream, temperature, wind speed, air pressure conversion and control, and output result is assessed, this method can only comment single-point
Estimate, there is the deficiencies of assessment dimension is few, and scope of assessment limits to；A kind of general evaluation method of controller switching equipment health index, the patent No.
201510845887.9, mathematical model is constructed in conjunction with the method for gray theory, Fuzzy AHP and evidence theory, to change
Depressor, switchgear, overhead transmission line and cable run carry out data acquisition, and place is normalized to controller switching equipment key feature amount
Reason generates controller switching equipment fuzzy overall evaluation matrix to obtain controller switching equipment key feature amount weight；By each key feature amount
State grade carry out evidence fusion, obtain controller switching equipment health index, this method do not consider enterprise practical distribution layering feelings
Condition, obtained controller switching equipment health index are not applied for multilayer controller switching equipment health evaluating.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The purpose of the present invention provides a kind of enterprise's multidimensional distribution health index control to solve prior art shortcoming
Method processed, this method formulate the multidimensional such as voltage deviation, frequency departure electrical specifications rule first, using successively incremental point of bottom
Layer thinking formulates electrical specifications calculation method under enterprise's different situations, and according to the electrical specifications of setting rule, obtains enterprise's electricity
The grading of gas index and scoring, finally by expert judging method, show that whole distribution health index, concrete scheme are as follows:
Step 1, the grading of setting electrical specifications and standards of grading, from voltage deviation, frequency departure, tri-phase unbalance factor, function
Rate factor, mains by harmonics, load factor, voltage fluctuation and flicker and voltage dip and short interruptions totally eight dimension set standards；
Step 2 thinks enterprise's remote measurement and control terminal (RTU) large number of situation using the layering that bottom is successively incremented by
Road, the electrical specifications data acquired to every layer calculate, and according to the electrical grading of formulation and standards of grading, obtain enterprise's electricity
The grading of gas index and scoring；
Step 3 carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result using expert judging method, obtains enterprise's entirety
Overall power distribution health index, and shown and graded with octagon background color.
The electrical standard diagrams of the determination and method comprising voltage deviation, frequency departure, imbalance of three-phase voltage
Degree, power factor, mains by harmonics, load factor, voltage fluctuation and flicker and voltage dip and short interruptions totally eight dimensions into
Row grading.
(1) scoring of setting voltage deviation and rating scale, as shown in the table:
(2) setpoint frequency deviation score and rating scale, as shown in the table:
(3) scoring of setting tri-phase unbalance factor and rating scale, as shown in the table:
| Non-equilibrium among three phase voltages range | Grading | Score range |
| 0%≤degree of unbalancedness≤+ 0.5% | It is excellent | 90-100 |
| + 0.5% < degree of unbalancedness≤+ 1% | It is good | 80-90 |
| + 1% < degree of unbalancedness≤2% | It passes | 60-80 |
| + 2% < degree of unbalancedness≤+ 4% | Difference | 0-60 |
| Degree of unbalancedness >+4% | It is very poor | 0 |
(4) scoring of setting power factor and rating scale, as shown in the table:
(5) scoring of setting Voltage Harmonic and rating scale, as shown in the table:
| Voltage distortion rate range | Grading | Score range |
| 0%≤percent harmonic distortion≤2% | It is excellent | 90-100 |
| 2% < percent harmonic distortion≤3% | It is good | 80-90 |
| 3% < percent harmonic distortion≤5% | It passes | 60-80 |
| 5% < percent harmonic distortion≤10% | Difference | 0-60 |
| Percent harmonic distortion > 10% | It is very poor | 0 |
(6) grading of setting load factor and standards of grading are as shown in the table:
| Load factor range | Grading | Score range |
| Load factor≤100% | It is good | 100 |
| Load factor > 100% | Difference | 0 |
(7) voltage fluctuation and flickering grading are set and standards of grading are as shown in the table:
| PltLong-time flickering value | Grading | Score range |
| ≤1 | It is good | 100 |
| >1 | Difference | 0 |
(8) setting voltage dip is graded with short interruptions and standards of grading are as shown in the table:
| Voltage dip and short interruptions coefficient | Grading | Score range |
| 95%≤voltage dip and short interruptions coefficient≤100% | It is excellent | 90-100 |
| 90%≤voltage dip and short interruptions coefficient≤95% | It is good | 80-90 |
| 10%≤voltage dip and short interruptions coefficient≤90% | It passes | 60-80 |
| 5%≤voltage dip and short interruptions coefficient≤10% | Difference | 0-60 |
| Voltage dip and short interruptions coefficient≤5% | It is very poor | 0 |
The layering thinking that the use is successively incremented by by bottom, the electrical specifications data acquired to every layer carry out calculating rule
It then sets, and according to the electrical grading of setting and standards of grading, obtains the grading of enterprise's electrical specifications and scoring, specific as follows:
(1) to single-point remote measurement and control terminal (RTU) enterprise
The electricity such as voltage, frequency, three-phase imbalance, power factor, the Voltage Harmonic of each remote measurement and control terminal (RTU)
Gas index, the data for collecting nearest 7 days (7*96 point) are averaging, and according to electrical specifications rating scale to indices
It is scored and is graded；
For the calculation method of load factor index, if single-point remote measurement and control terminal (RTU) enterprise there are transformer capacity,
It is calculated according to the electrical grading of setting and standards of grading；If transless, load factor processing is not done.
Each remote measurement and control terminal (RTU) voltage fluctuation and flicker electrical specifications are calculated, are collected in one week section 168h
Long-time flickering value, and according to the electrical specifications of setting grading and standards of grading judged；To voltage dip in short-term in
Disconnected electrical specifications calculate, and according to certain point power-frequency voltage virtual value of acquisition, and grade and score according to the electrical specifications of setting and mark
Standard is judged.
(2) to single inlet wire enterprise
For inlet wire grade without remote measurement and control terminal, device level has multiple remote measurement and control terminal situations, computation rule be first according to
The electrical specifications of each single-point remote measurement and control terminal are calculated, then to the correspondence electric data of each remote measurement and control terminal into
Row, which is added, to be averaging, and according to the electrical grading of setting and standards of grading, obtains the grading of enterprise's electrical specifications and scoring；
Inlet wire grade has remote measurement and control terminal situation, acquires data using grade remote measurement and control terminal is carried out, long-range according to single-point
Detection and control terminal enterprise calculation rule, and according to the electrical grading of setting and standards of grading, it obtains the grading of enterprise's electrical specifications and comments
Point.
(3) to a plurality of inlet wire enterprise
After obtaining the electrical specifications scoring of every inlet wire, scoring to entire enterprise's items electrical specifications, using every
This index scoring of inlet wire is obtained multiplied by respective weights coefficient, wherein the weight coefficient of each inlet wire takes its inlet wire capacity divided by total
Capacity, the sum of the weight coefficient of all inlet wires should be 1, and according to the electrical grading of setting and standards of grading, show that enterprise is electrical
Index grading and scoring.
Described carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result using expert judging method, show that enterprise is integrally comprehensive
Distribution health index is closed, and is shown and is graded with octagon color, specific as follows:
(1) if having one in voltage deviation/frequency departure scoring and appearing above lower than 60 points phenomenons, then entirety distribution
Health index is 0；
(2) if the two score value is 60 points or more, then uses expert judging method in voltage deviation/frequency departure scoring
COMPREHENSIVE CALCULATING is carried out to enterprise's electrical specifications appraisal result, expert judging method weight is as follows:
| Index | The evaluation of expert 1 | The evaluation of expert 2 | The evaluation of expert 3 | Three expert's mean values |
| Voltage deviation | 15 | 18 | 20 | 17.67 |
| Frequency departure | 15 | 20 | 20 | 18.33 |
| Non-equilibrium among three phase voltages | 10 | 6 | 5 | 7 |
| Power factor | 15 | 12 | 15 | 14 |
| Mains by harmonics | 10 | 10 | 10 | 10 |
| Load factor | 15 | 16 | 20 | 17 |
| Voltage fluctuation and flicker | 10 | 10 | 4 | 8 |
| Voltage dip and short interruptions | 10 | 8 | 6 | 8 |
| 100 | 100 | 100 | 100 |
According to upper table, it can be concluded that, the weighted value of seven different indexs is as follows:
Voltage deviation weight=17.67/100=0.1767；
Frequency departure weight=18.33/100=0.1833；
Non-equilibrium among three phase voltages weight=7/100=0.07；
Power factor weight=14/100=0.14；
Mains by harmonics weight=10/100=0.1；
Load factor weight=17/100=0.17；
Voltage fluctuation and flicker weight=8/100=0.08
Voltage dip and short interruptions weight=8/100=0.08.
Whole distribution health index initial score is 100 points, converts to the scoring of each phase electrical specifications, obtains each and refer to
Target deduction value；Health index initial score (100 points) obtains inlet wire after subtracting indices deduction value or user integrally matches
Electric health index.
It is described to calculate that steps are as follows in detail:
A: initialization distribution health index scoring is 100 points；
B: calculating the deduction value of voltage deviation, and weight shared by the voltage deviation obtained as expert judging method is more, is 17.67
Point, it is calculated using the following equation the index deduction value
In formula,For voltage deviation deduction value,For inlet wire or user's voltage deviation score value.
C: calculating the deduction value of frequency departure, and weight shared by the voltage deviation obtained as expert judging method is more, is 18.33
Point, it is calculated using the following equation two index deduction values:
In formula,For frequency departure deduction value,For inlet wire or user's frequency departure score value.
D: calculating the deduction value of tri-phase unbalance factor, and weight shared by the voltage deviation obtained as expert judging method is less, only
It is 7 points, is calculated using the following equation two index deduction values: being calculated using the following equation this index:
In formula,For non-equilibrium among three phase voltages deduction value,For inlet wire or user's tri-phase unbalance factor score value.
E: calculating the deduction value of power factor, and weight shared by the power factor obtained as expert judging method is more, is 14 points,
It is calculated using the following equation two index deduction values: being calculated using the following equation this index:
In formula,For frequency departure deduction value,For inlet wire or user's frequency departure score value.
F: calculating mains by harmonics deduction value, and weight shared by the power factor obtained as expert judging method is less, and only 10 points,
It is calculated using the following equation two index deduction values: being calculated using the following equation this index:
G: the deduction value of computational load rate, weight shared by the load factor obtained as expert judging method is more, is 17 points, uses
Following formula calculates two index deduction values: it is calculated using the following equation this index:
In formula,For load factor deduction value,For inlet wire or user load rate electrical specifications score value.
H: calculating the deduction value of voltage fluctuation and flicker, voltage dip and short interruptions, is obtained by expert judging method negative
Weight shared by load rate is more, is 8 points, is calculated using the following equation two index deduction values:
In formula, vff, vssi respectively indicate voltage fluctuation and flicker, voltage dip and short interruptions.
I: inlet wire or user's entirety distribution health index calculation method, using following formula:
Finally, to showing that enterprise's entirety distribution health index is graded and color is divided into as shown in the table:
| Grading | Score range | Color |
| It is excellent | 90-100 | Green |
| It is good | 75-90 | Blue |
| It passes | 60-75 | Yellow |
| Difference | 0-60 | Black |
Compared with prior art, it is the advantages of the invention patent:
It is required according to power quality, formulates the grading of multidimensional electrical specifications and code of points, using successively incremental point of bottom
Layer thinking, sets the electrical specifications calculation method under enterprise's different situations, show that enterprise's electrical specifications score, using expert evaluation
Method obtains Enterprise Integrated distribution health index, shows that rating result, this method are suitable for all installations by octagon color
Distribution enterprise has the advantages that versatility and practical.
Detailed description of the invention
Fig. 1 is a kind of enterprise's multidimensional distribution health index control method process of the invention
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical method of the invention
Applying example, the present invention is described in further detail, it should be noted that in the absence of conflict, embodiments herein and
Feature in embodiment can be combined with each other.
As shown in Figure 1, the invention discloses a kind of enterprise's multidimensional distribution health index control methods comprising following step
It is rapid:
Step 1, the grading of setting electrical specifications and standards of grading, from voltage deviation, frequency departure, tri-phase unbalance factor, function
Rate factor, mains by harmonics, load factor, voltage fluctuation and flicker and voltage dip and short interruptions totally eight dimension set standards；
Step 2 thinks enterprise's remote measurement and control terminal (RTU) large number of situation using the layering that bottom is successively incremented by
Road, the electrical specifications data acquired to every layer calculate, and according to the electrical grading of formulation and standards of grading, obtain enterprise's electricity
The grading of gas index and scoring；
Step 3 carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result using expert judging method, obtains enterprise's entirety
Overall power distribution health index, and shown and graded with octagon background color.
The formulation electrical specifications grading and standards of grading comprising voltage deviation, frequency departure, three-phase voltage are uneven
Weighing apparatus degree, power factor, mains by harmonics, load factor, voltage fluctuation and flicker and voltage dip and eight indexs of short interruptions.
Wherein the calculation formula of the use of voltage deviation is as follows:
According to national standard " GB/T 12325-2008 power quality supply voltage deviation " to supply voltage deviation requirement,
It is as shown in the table to voltage deviation rank and score assessment method in conjunction with the demand that power quality is graded:
Wherein, the calculation formula of frequency departure is as follows:
Frequency departure=system frequency actual value-system nominal frequency
It is inclined to power system frequency according to national standard " GB/T 15945-2008 power quality power system frequency deviation "
Poor limit value requirement, as shown in the table to frequency departure rank and score assessment method in conjunction with the demand that power quality is graded:
Non-equilibrium among three phase voltages are negative sequence voltage degree of unbalancedness, the following institute of the calculation formula of negative sequence voltage degree of unbalancedness
Show:
According to national standard " GB/T 15543-2008 power quality imbalance of three-phase voltage " to Three-phase Power Systems voltage
The requirement of degree of unbalancedness, and the demand of power quality grading is combined, to frequency departure rank and score assessment method such as following table institute
Show:
| Non-equilibrium among three phase voltages range | Grading | Score range |
| 0%≤degree of unbalancedness≤+ 0.5% | It is excellent | 90-100 |
| + 0.5% < degree of unbalancedness≤+ 1% | It is good | 80-90 |
| + 1% < degree of unbalancedness≤2% | It passes | 60-80 |
| + 2% < degree of unbalancedness≤+ 4% | Difference | 0-60 |
| Degree of unbalancedness >+4% | It is very poor | 0 |
According to Guangdong Power Grid Corporation to the notice of power factor adjustment charge problem, in conjunction with the demand that power quality is graded,
It is as shown in the table to power factor rank and score assessment method:
According to national standard " GB/T 15945-2008 power quality Harmonious Waves in Power Systems aberration rate " to Harmonious Waves in Power Systems
Aberration rate requirement, and the demand of power quality grading is combined, to Voltage Harmonic rank and score assessment method such as following table institute
Show:
| Voltage distortion rate range | Grading | Score range |
| 0%≤percent harmonic distortion≤2% | It is excellent | 90-100 |
| 2% < percent harmonic distortion≤3% | It is good | 80-90 |
| 3% < percent harmonic distortion≤5% | It passes | 60-80 |
| 5% < percent harmonic distortion≤10% | Difference | 0-60 |
| Percent harmonic distortion > 10% | It is very poor | 0 |
Load factor is the ratio between user's apparent energy and transformer rated capacity, and the too low then controller switching equipment of load factor is more unrestrained
Take, load factor is excessively high then to have overload danger, causes to damage with electrical equipment.In conjunction with the optimized operation zone of transformer, to
The grading of family load factor and score assessment method are as shown in the table:
| Load factor range | Grading | Score range |
| Load factor≤100% | It is good | 100 |
| Load factor > 100% | Difference | 0 |
Voltage fluctuation and flicker be with reference to " GB/T 12326-2008 power quality voltage fluctuation and flicker " voltage fluctuation with
Flickering is electric system points of common connection, under the smaller mode of system operation, with one week (168h) for measurement period, and Suo Youchang
Time flickering value Plt meets :≤110kV, Plt=1；> 110kV, Plt=0.8.And the relevant regulations of single user.To electricity
Pressure fluctuation and flickering requirement, and the demand of power quality grading is combined to be graded and scored；
Due to general utilization voltage be all in, low-voltage-grade, this programme consider voltage class be≤110kV, in conjunction with
PCC points of common connection, as shown in the table to the grading of user's voltage flicker and score evaluation project:
| Plt | Grading | Score range |
| ≤1 | It is good | 100 |
| >1 | Difference | 0 |
Voltage dip is right with reference to " GB/T30137-2013 power quality voltage dip and short interruptions " with short interruptions
Voltage dip and short interruptions requirement are defined as voltage dip and refer to that certain point power-frequency voltage root-mean-square valve drops suddenly in electric system
Restore normal phenomenon down to 0.1p.u.~0.9p.u., and after of short duration lasting 10ms~1min；Short interruptions refer to electric power
Certain point power-frequency voltage root-mean-square valve is reduced to 0.1p.u. suddenly hereinafter, and restoring after of short duration lasting 10ms~1min in system
Normal phenomenon.
Wherein, the calculation formula of voltage dip and short interruptions coefficient is as follows:
Voltage dip and short interruptions score evaluation project are as shown in the table:
| Voltage dip and short interruptions coefficient | Grading | Score range |
| 95%≤voltage dip and short interruptions coefficient≤100% | It is excellent | 90-100 |
| 90%≤voltage dip and short interruptions coefficient≤95% | It is good | 80-90 |
| 10%≤voltage dip and short interruptions coefficient≤90% | It passes | 60-80 |
| 5%≤voltage dip and short interruptions coefficient≤10% | Difference | 0-60 |
| Voltage dip and short interruptions coefficient≤5% | It is very poor | 0 |
The layering thinking being successively incremented by using bottom, the electrical specifications data acquired to every layer are calculated, and
According to the electrical grading of setting and standards of grading, the grading of enterprise's electrical specifications and scoring are obtained, specific as follows:
(1) to single-point remote measurement and control terminal (RTU) enterprise
The electricity such as voltage, frequency, three-phase imbalance, power factor, the Voltage Harmonic of each remote measurement and control terminal (RTU)
Gas index, the data for collecting nearest 7 days (7*96 point) are averaging, and according to electrical specifications rating scale to indices
It is scored and is graded；
For the calculation method of load factor index, if single-point remote measurement and control terminal (RTU) enterprise there are transformer capacity,
It is calculated according to the electrical grading of setting and standards of grading；If transless, load factor processing is not done.
Each remote measurement and control terminal (RTU) voltage fluctuation and flicker electrical specifications are calculated, are collected in one week section 168h
Long-time flickering value, and according to the electrical specifications of setting grading and standards of grading judged；To voltage dip in short-term in
Disconnected electrical specifications calculate, and according to certain point power-frequency voltage virtual value of acquisition, and grade and score according to the electrical specifications of setting and mark
Standard is judged.
(2) to single inlet wire enterprise
For inlet wire grade without remote measurement and control terminal, device level has multiple remote measurement and control terminal situations, computation rule be first according to
The electrical specifications of each single-point remote measurement and control terminal are calculated, then to the correspondence electric data of each remote measurement and control terminal into
Row, which is added, to be averaging, and according to the electrical grading of setting and standards of grading, obtains the grading of enterprise's electrical specifications and scoring；
Inlet wire grade has remote measurement and control terminal situation, acquires data using grade remote measurement and control terminal is carried out, long-range according to single-point
Detection and control terminal enterprise calculation rule, and according to the electrical grading of setting and standards of grading, it obtains the grading of enterprise's electrical specifications and comments
Point.
(3) to a plurality of inlet wire enterprise
After obtaining the electrical specifications scoring of every inlet wire, scoring to entire enterprise's items electrical specifications, using every
This index scoring of inlet wire is obtained multiplied by respective weights coefficient, wherein the weight coefficient of each inlet wire takes its inlet wire capacity divided by total
Capacity, the sum of the weight coefficient of all inlet wires should be 1, and according to the electrical grading of setting and standards of grading, show that enterprise is electrical
Index grading and scoring.
Described carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result using expert judging method, show that enterprise is integrally comprehensive
Distribution health index is closed, and is shown and is graded with octagon color, specific as follows:
(1) if having one in voltage deviation/frequency departure scoring and appearing above lower than 60 points phenomenons, then entirety distribution
Health index is 0；
(2) if the two score value is 60 points or more, then uses expert judging method in voltage deviation/frequency departure scoring
COMPREHENSIVE CALCULATING is carried out to enterprise's electrical specifications appraisal result, expert judging method weight is as follows:
| Index | The evaluation of expert 1 | The evaluation of expert 2 | The evaluation of expert 3 | Three expert's mean values |
| Voltage deviation | 15 | 18 | 20 | 17.67 |
| Frequency departure | 15 | 20 | 20 | 18.33 |
| Non-equilibrium among three phase voltages | 10 | 6 | 5 | 7 |
| Power factor | 15 | 12 | 15 | 14 |
| Mains by harmonics | 10 | 10 | 10 | 10 |
| Load factor | 15 | 16 | 20 | 17 |
| Voltage fluctuation and flicker | 10 | 10 | 4 | 8 |
| Voltage dip and short interruptions | 10 | 8 | 6 | 8 |
| 100 | 100 | 100 | 100 |
According to upper table, it can be concluded that, the weighted value of seven different indexs is as follows:
Voltage deviation weight=17.67/100=0.1767；
Frequency departure weight=18.33/100=0.1833；
Non-equilibrium among three phase voltages weight=7/100=0.07；
Power factor weight=14/100=0.14；
Mains by harmonics weight=10/100=0.1；
Load factor weight=17/100=0.17；
Voltage fluctuation and flicker weight=8/100=0.08
Voltage dip and short interruptions weight=8/100=0.08.
Whole distribution health index initial score is 100 points, converts to the scoring of each phase electrical specifications, obtains each and refer to
Target deduction value；Health index initial score (100 points) obtains inlet wire after subtracting indices deduction value or user integrally matches
Electric health index.
It is described to calculate that steps are as follows in detail:
A: initialization distribution health index scoring is 100 points；
B: calculating the deduction value of voltage deviation, and weight shared by the voltage deviation obtained as expert judging method is more, is 17.67
Point, it is calculated using the following equation the index deduction value
In formula,For voltage deviation deduction value,For inlet wire or user's voltage deviation score value.
C: calculating the deduction value of frequency departure, and weight shared by the voltage deviation obtained as expert judging method is more, is 18.33
Point, it is calculated using the following equation two index deduction values:
In formula,For frequency departure deduction value,For inlet wire or user's frequency departure score value.
D: calculating the deduction value of tri-phase unbalance factor, and weight shared by the voltage deviation obtained as expert judging method is less, only
It is 7 points, is calculated using the following equation two index deduction values: being calculated using the following equation this index:
In formula,For non-equilibrium among three phase voltages deduction value,For inlet wire or user's tri-phase unbalance factor score value.
E: calculating the deduction value of power factor, and weight shared by the power factor obtained as expert judging method is more, is 14 points,
It is calculated using the following equation two index deduction values: being calculated using the following equation this index:
In formula,For frequency departure deduction value,For inlet wire or user's frequency departure score value.
F: calculating mains by harmonics deduction value, and weight shared by the power factor obtained as expert judging method is less, and only 10 points,
It is calculated using the following equation two index deduction values: being calculated using the following equation this index:
G: the deduction value of computational load rate, weight shared by the load factor obtained as expert judging method is more, is 17 points, uses
Following formula calculates two index deduction values: it is calculated using the following equation this index:
In formula,For load factor deduction value,For inlet wire or user load rate electrical specifications score value.
H: calculating the deduction value of voltage fluctuation and flicker, voltage dip and short interruptions, is obtained by expert judging method negative
Weight shared by load rate is more, is 8 points, is calculated using the following equation two index deduction values:
In formula, vff, vssi respectively indicate voltage fluctuation and flicker, voltage dip and short interruptions.
I: inlet wire or user's entirety distribution health index calculation method, using following formula:
Finally, to showing that enterprise's entirety distribution health index is graded and color is divided into as shown in the table:
| Grading | Score range | Color |
| It is excellent | 90-100 | Green |
| It is good | 75-90 | Blue |
| It passes | 60-75 | Yellow |
| Difference | 0-60 | Black |
It is that a kind of enterprise's multidimensional distribution health index control method provided by the present invention is described in detail above,
Principle and implementation of the present invention are described herein, the above embodiments are only used to help understand this hair
Bright method and its core concept；At the same time, for those skilled in the art, according to the thought of the present invention, specific real
Apply in mode and application range that there will be changes, in conclusion the content of the present specification should not be construed as to limit of the invention
System.
In short, although the present invention lists above-mentioned preferred embodiment, although it should be noted that those skilled in the art
Member can carry out various change and remodeling, unless such change and modification deviate from the scope of the present invention, otherwise should all wrap
It includes within the scope of the present invention.
Claims (4)
1. a kind of enterprise's multidimensional distribution health index control method, which comprises the following steps:
Step 1, setting electrical specifications grading and standards of grading, from voltage deviation, frequency departure, tri-phase unbalance factor, power because
Number, mains by harmonics, load factor, voltage fluctuation and flicker and voltage dip and short interruptions totally eight dimension set standards；
Step 2, to enterprise's remote measurement and control terminal (RTU) large number of situation, the layering thinking being successively incremented by using bottom is right
The electrical specifications data of every layer of acquisition are calculated, and according to the electrical grading of formulation and standards of grading, show that enterprise electrically refers to
Mark grading and scoring；
Step 3 carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result using expert judging method, obtains enterprise's whole synthesis
Distribution health index, and shown and graded with octagon background color.
2. a kind of enterprise's multidimensional distribution health index control method according to claim 1, it is characterised in that setting is electrical
Index grading and standards of grading, from voltage deviation, frequency departure, tri-phase unbalance factor, power factor, mains by harmonics, load factor,
Voltage fluctuation and flicker and voltage dip and short interruptions totally eight dimension set standards, specific as follows:
(1) scoring of setting voltage deviation and rating scale, as shown in the table:
(2) setpoint frequency deviation score and rating scale, as shown in the table:
(3) scoring of setting tri-phase unbalance factor and rating scale, as shown in the table:
(4) scoring of setting power factor and rating scale, as shown in the table:
(5) scoring of setting Voltage Harmonic and rating scale, as shown in the table:
(6) grading of setting load factor and standards of grading are as shown in the table:
(7) voltage fluctuation and flickering grading are set and standards of grading are as shown in the table:
(8) setting voltage dip is graded with short interruptions and standards of grading are as shown in the table:
3. a kind of enterprise's multidimensional distribution health index control method according to claim 1, it is characterised in that using the bottom of by
The successively incremental layering thinking of layer, the electrical specifications data acquired to every layer calculate, and according to the electrical grading of setting with
Standards of grading obtain the grading of enterprise's electrical specifications and scoring；
(1) to single-point remote measurement and control terminal (RTU) enterprise
Voltage, frequency, three-phase imbalance, power factor, Voltage Harmonic of each remote measurement and control terminal (RTU) etc. electrically refer to
Mark, the data for collecting nearest 7 days (7*96 point) are averaging, and are carried out according to electrical specifications rating scale to indices
Scoring and grading；
For the calculation method of load factor index, if single-point remote measurement and control terminal (RTU) enterprise there are transformer capacity, according to
The electrical grading of setting and standards of grading are calculated；If transless, load factor processing is not done；
Each remote measurement and control terminal (RTU) voltage fluctuation and flicker electrical specifications are calculated, the length in one week section 168h is collected
Time flickering value, and judged according to the grading of the electrical specifications of setting and standards of grading；To voltage dip and short interruptions electricity
Gas index calculate, according to acquisition certain point power-frequency voltage virtual value, and according to the electrical specifications of setting grading and standards of grading into
Row judgement；
(2) to single inlet wire enterprise
For inlet wire grade without remote measurement and control terminal, device level has multiple remote measurement and control terminal situations, and computation rule is first according to each
The electrical specifications of single-point remote measurement and control terminal are calculated, and then carry out phase to the correspondence electric data of each remote measurement and control terminal
Add averaging, and according to the electrical grading of setting and standards of grading, obtains the grading of enterprise's electrical specifications and scoring；
Inlet wire grade has remote measurement and control terminal situation, data is acquired using grade remote measurement and control terminal is carried out, according to single-point remote measurement and control
Terminal enterprise calculation method, and according to the electrical grading of setting and standards of grading, obtain the grading of enterprise's electrical specifications and scoring；
(3) to a plurality of inlet wire enterprise
After obtaining the electrical specifications scoring of every inlet wire, scoring to entire enterprise's items electrical specifications, using every inlet wire
The scoring of this index obtained multiplied by respective weights coefficient, wherein the weight coefficient of each inlet wire takes its inlet wire capacity to hold divided by total
Amount, the sum of the weight coefficient of all inlet wires should be 1, and according to the electrical grading of setting and standards of grading, show that enterprise electrically refers to
Mark grading and scoring.
4. a kind of enterprise's multidimensional distribution health index control method according to claim 1, it is characterised in that use expert
Rating method carries out COMPREHENSIVE CALCULATING to enterprise's electrical specifications appraisal result, obtains enterprise's whole synthesis distribution health index, and with just
The display grading of octagon background color, specific as follows:
(1) if having one in voltage deviation/frequency departure scoring and appearing above lower than 60 points phenomenons, then whole distribution is healthy
Index is 0；
(2) if the two score value is 60 points or more, then using expert judging method to enterprise in voltage deviation/frequency departure scoring
Industry electrical specifications appraisal result carries out COMPREHENSIVE CALCULATING, and expert judging method weight is as follows:
According to upper table, it can be concluded that, the weighted value of seven different indexs is as follows:
Voltage deviation weight=17.67/100=0.1767；
Frequency departure weight=18.33/100=0.1833；
Non-equilibrium among three phase voltages weight=7/100=0.07；
Power factor weight=14/100=0.14；
Mains by harmonics weight=10/100=0.1；
Load factor weight=17/100=0.17；
Voltage fluctuation and flicker weight=8/100=0.08
Voltage dip and short interruptions weight=8/100=0.08；
Whole distribution health index initial score is 100 points, converts to the scoring of each phase electrical specifications, obtains each index
Deduction value；Health index initial score (100 points) obtains inlet wire after subtracting indices deduction value or user's entirety distribution is strong
Health index；
It is described to calculate that steps are as follows in detail:
A: initialization distribution health index scoring is 100 points；
B: calculating the deduction value of voltage deviation, and weight shared by the voltage deviation obtained as expert judging method is more, is 17.67 points,
It is calculated using the following equation the index deduction value
In formula,For voltage deviation deduction value,For inlet wire or user's voltage deviation score value；
C: calculating the deduction value of frequency departure, and weight shared by the voltage deviation obtained as expert judging method is more, is 18.33 points,
It is calculated using the following equation two index deduction values:
In formula,For frequency departure deduction value,For inlet wire or user's frequency departure score value；
D: calculating the deduction value of tri-phase unbalance factor, and weight shared by the voltage deviation obtained as expert judging method is less, and only 7
Point, it is calculated using the following equation two index deduction values: being calculated using the following equation this index:
In formula,For non-equilibrium among three phase voltages deduction value,For inlet wire or user's tri-phase unbalance factor score value；
E: calculating the deduction value of power factor, and weight shared by the power factor obtained as expert judging method is more, is 14 points, uses
Following formula calculates two index deduction values: it is calculated using the following equation this index:
In formula,For frequency departure deduction value,For inlet wire or user's frequency departure score value.
F: calculating mains by harmonics deduction value, and weight shared by the power factor obtained as expert judging method is less, only 10 points, uses
Following formula calculates two index deduction values: it is calculated using the following equation this index:
G: the deduction value of computational load rate, weight shared by the load factor obtained as expert judging method is more, is 17 points, use is following
Formula calculates two index deduction values: it is calculated using the following equation this index:
In formula,For load factor deduction value,For inlet wire or user load rate electrical specifications score value；
H: the deduction value of voltage fluctuation and flicker, voltage dip and short interruptions, the load factor obtained by expert judging method are calculated
Shared weight is more, is 8 points, is calculated using the following equation two index deduction values:
In formula, vff, vssi respectively indicate voltage fluctuation and flicker, voltage dip and short interruptions；
I: inlet wire or user's entirety distribution health index calculation method, using following formula:
Finally, to showing that enterprise's entirety distribution health index is graded and color is divided into as shown in the table:
。
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| CN112734279A (en) * | 2021-01-20 | 2021-04-30 | 西门子工厂自动化工程有限公司 | Method, tool, device, medium and product for technical evaluation of industrial technical services |
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