Hand in hand circuit line loss per unit statistical method based on the band segmentation of power information acquisition system
Technical field
The invention belongs to power supply enterprise's line loss statistical technique field, relate to a kind of band based on power information acquisition system and divide
Section circuit line loss per unit statistical method hand in hand.
Background technology
Line loss is one principal economic indicators of power supply enterprise, and matching net wire loss is in whole power grid architecture, and line loss occupies
Bigger proportion.Due to the uncertainty of distribution line operation side hand in hand and supply district, the programming count of its line loss and meter
Calculation cannot realize, causes strong influence to the accuracy rate of power supply enterprise's line loss statistics.
Content of the invention
The technical problem to be solved is to provide one can judge the circuit method of operation and line hand in hand automatically
Road partition running situation, automatically adjust line loss statistics publicity, the circuit that realizes handing in hand line loss programming count function based on
The band segmentation of power utilization information collection system is handed in hand circuit line loss per unit statistical method.
For solve above-mentioned technical problem technical scheme be: a kind of band segmentation based on power information acquisition system pulls
Hand line route loss rate statistical method, specifically includes following steps:
Described band segmentation circuit of handing in hand includes website C1-C3, the first to the 6th disconnecting link D1-D6, interconnection switch S1-S2, segmentation
Switch F and user R1-R2;Described website C1 is positioned at the front end of circuit line of handing in hand with segmentation, and described website C3 is positioned at band segmentation
The rear end of circuit line hand in hand;Described website C1 is successively through the first disconnecting link D1, interconnection switch S1, the second disconnecting link D2, the 3rd disconnecting link
D3, block switch F, the 4th disconnecting link D4, website C2, the 5th disconnecting link D5, interconnection switch S2, the 6th disconnecting link D6 go to the station to meet somebody a C3;
Interconnection switch S1 is arranged between first disconnecting link D1 and second disconnecting link D2;Described first disconnecting link D1, interconnection switch S1
Constitute the first critical point with the second disconnecting link D2;
Interconnection switch S2 is arranged between the 5th disconnecting link D5 and the 6th disconnecting link D6;Described 5th disconnecting link D5, interconnection switch S2,
6th disconnecting link D6 constitutes the second critical point;
The circuit being positioned at the first front end, critical point is set to line number X1;User R1 is last user of line number X1;
The circuit being positioned between the first critical point and the second critical point is set to line number X2;User R2 is last use of line number X2
Family;
The circuit being positioned at the second critical point rear end is set to line number X3;Wherein line number X1 < X2 < X3;
After last user R1 that line number is X1 circuit and before the first disconnecting link D1, install the first voltage transformer TP1,
One current transformer TA1, bidirectional measuring intelligent meter P1 and the first acquisition terminal T1;Bidirectional measuring intelligent meter P1 passes through the first voltage
Transformer TP1 and the first current transformer TA1 obtains respectively and flows through the voltage and current that line number is X1 circuit;First gathers eventually
The information of bidirectional measuring intelligent meter P1 is read in end T1 timing, and is transferred to acquisition system T;
After last user R2 that line number is X2 circuit and before the 5th disconnecting link D5, install the second voltage transformer TP2,
Two current transformer TA2, bidirectional measuring intelligent meter P2 and the second acquisition terminal T2;Second voltage transformer TP2 and the second electric current
Transformer TA2 obtains voltage and current respectively and is transferred to bidirectional measuring intelligent meter P2;Bidirectional measuring intelligent meter P2 is by the second electricity
Pressure transformer TP2 and the second current transformer TA2 obtains respectively and flows through the voltage and current that line number is X2 circuit;Second gathers
The information of bidirectional measuring intelligent meter P2 is read in the timing of terminal T2, and is transferred to acquisition system T;
When installing bidirectional measuring intelligent meter P1, to flow to the first disconnecting link D1 side as forward, bidirectional measuring intelligent meter P2 is being installed
When, to flow to disconnecting link D5 side as forward;
(1) in block switch F Guan Bi, during the 3rd disconnecting link D3 and the 4th disconnecting link D4 Guan Bi, interconnection switch S1, interconnection switch S2, the
One disconnecting link D1 and the second disconnecting link D2 all opens, and the 5th disconnecting link D5 and the 6th disconnecting link D6 opens, and bidirectional measuring intelligent meter P1-P2 is without electricity
Stream passes through, and produces without electricity, and line loss per unit calculates sees (formula 1) ~ (formula 3):
Z1=(A1-B1)/A1 (formula 1)
Z2=(A2-B2)/A2 (formula 2)
Z3=(A2-B3)/A3 (formula 3)
In (formula 1) ~ (formula 3), Z1: line number is the line loss per unit of X1 circuit, and A1: line number is the table electricity of X1 circuit, B1: line
Specially public change user's electricity that road number is X1 circuit, Z2: line number is the line loss per unit of X2 circuit, and A2: line number is the 2 of X2 circuit
Table electricity, B2: line number is that all special public of X2 circuit becomes user's electricity, and Z3: line number is the line loss per unit of X3 circuit, A3:
Line number is the table electricity of X3 circuit, and B3: line number is that all special public of X3 circuit becomes user's electricity;
When line number is the circuit that the circuit band line number of X2 is X3, interconnection switch S2 closes, and disconnecting link D5 and D6 closes, now P2
Flow through forward current, the circuit power load that record circuit number is X3;Second acquisition terminal T2 is according to bidirectional measuring intelligent meter P2
Forward current occur, the on-the-spot method of operation of automatic decision is the circuit that the circuit band line number that line number is X2 is X3, now line
Loss rate calculates sees (formula 4) ~ (formula 5):
Z4=(A4-B4-Q1)/A4 (formula 4)
Z5=(A5+Q1-B5)/(A5+Q1) (formula 5)
Z4 line number is the line loss per unit of X2 circuit, and A4: line number is the table electricity of X2 circuit, and B4: line number is the institute of X2 circuit
Having the specially public user's electricity that becomes, Q1: bidirectional measuring intelligent meter P2 turns record forward electricity during band, and Z5: line number is the circuit of X3
Line loss per unit, A5: line number is the circuit table electricity of X3, and B5: line number is all special public change user's electricity of circuit of X3;
When line number is the circuit that the circuit band line number of X3 is X2, interconnection switch S2 closes, the 5th disconnecting link D5 and the 6th disconnecting link
D6 closes, and now bidirectional measuring intelligent meter P2 flows through reversing the current, the circuit power load that record circuit number is X2;Second gathers
There is reversing the current according to bidirectional measuring intelligent meter P2 in terminal T2, and the on-the-spot method of operation of automatic decision is the circuit that line number is X3
With the circuit that line number is X2, now line loss per unit calculates and sees (formula 6) ~ (formula 7):
Z6=(A6+Q2-B6)/(A6+Q2) (formula 6)
Z7=(A7-Q2-B7)/A7 (formula 7)
Z6: line number is the line loss per unit of X2 circuit, and A6: line number is the table electricity of X2 circuit, and B6: line number is X2 circuit
All special public change user's electricity, Q2: bidirectional measuring intelligent meter P2 records reverse electricity during turning band, Z7: line number is X3 circuit
Line loss per unit, A7: line number is the table electricity of X3 circuit, and B7: line number is that all special public of X3 circuit becomes user's electricity.
Line number is the circuit of X1 and each circuit line loss per unit computing formula and line when line number is to turn band between the circuit of X2
The circuit that road number is X2 is that when turning band between the circuit of X3, each circuit line loss per unit computing formula is identical with line number;
(2) when block switch, the 3rd disconnecting link D3 and the 4th disconnecting link D4 open, line number be the circuit of X2 be X3 by line number respectively
Circuit and the circuit that line number is X1 turn band, the bidirectional measuring intelligent meter P2 that now interconnection switch S2 place installs occurs reverse
Electric current, there is forward current in the bidirectional measuring intelligent meter P1 installing at interconnection switch S1, and the first acquisition terminal T1 and second gathers
The forward and reverse electric current that terminal T2 is occurred by field erected bidirectional measuring intelligent meter P1-P2 respectively simultaneously, it is judged that circuit is line
Circuit and the circuit that line number is X1 that road number is X3 turn band X2 circuit respectively;
Now line loss calculation formula:
Z8=(A8-B8-Q3)/A8 (formula 8)
Z9=(Q4+Q3-B9)/(Q4+Q3) (formula 9)
Z10=(A10-B10-Q4)/A10 (formula 10)
Z8: line number is the line loss of X1 circuit, and A8: line number is the table electricity of X1 circuit, and B8: line number is all of X1 circuit
Specially public change user's electricity, Q3: bidirectional measuring intelligent meter P1 turns carried charge i.e. forward active energy;
Z9: line number is the line loss of X2 circuit, and B9: line number is that all special public of X2 circuit becomes user's electricity, Q4: bidirectional measuring
Intelligent meter P2 turns the i.e. reverse active energy of carried charge;
Z10: line number is the line loss of X3 circuit, and A10: line number is the table electricity of X3 circuit, and B10: line number is X3 circuit
All special public change user's electricity.
The invention has the beneficial effects as follows: the present invention is to utilize in contact disconnecting link side, line sectionalizing switch-side hand in hand respectively
Install intelligent meter and the acquisition terminal of bidirectional measuring additional, be not required to the inspection of the scene of a crime and substantial amounts of human and material resources pass through acquisition system main website
Judge the forward and reverse power of intelligent meter, automatically judge hand in hand the circuit method of operation and line sectionalizing ruuning situation, automatically adjust line
Damage statistics publicity, it is achieved the line loss programming count function of circuit hand in hand;Present invention achieves and hand in hand the complete of circuit with segmentation
Programming count, decreases artificial participation and error rate, improves the ageing and accuracy of circuit line loss per unit statistics, is company
Line loss calculation provides strong technical support;Meanwhile, this method is used also can to realize reliability and the voltage stabilization of circuit
Property in real time monitoring and analyze, for providing more high-quality, more comfortable electrical power services to seek a kind of detection means and technical guarantee;
With the gradually propelling of distribution automation, the circuit high reliability of circuit is gradually taken, implements hand in hand, and its line loss per unit meter
Calculation method always relatively backward, the present invention solves the difficulty that the line loss per unit that distribution automation brings calculates, is that distribution is automatic
Change the difficult problem of line loss per unit statistics brought and provide foundation.
Brief description
Fig. 1 is that band segmentation of the present invention is handed in hand line construction schematic diagram.
Fig. 2 is to carry segmentation to hand in hand line construction schematic diagram in embodiment.
Detailed description of the invention
Below according to Fig. 1-2 and embodiment, the present invention is elaborated.
The present invention specifically includes following steps:
Described band segmentation circuit of handing in hand includes website C1-C3, the first to the 6th disconnecting link D1-D6, interconnection switch S1-S2, segmentation
Switch F and user R1-R2;Described website C1 is positioned at the front end of circuit line of handing in hand with segmentation, and described website C3 is positioned at band segmentation
The rear end of circuit line hand in hand;Described website C1 is successively through the first disconnecting link D1, interconnection switch S1, the second disconnecting link D2, the 3rd disconnecting link
D3, block switch F, the 4th disconnecting link D4, website C2, the 5th disconnecting link D5, interconnection switch S2, the 6th disconnecting link D6 go to the station to meet somebody a C3;
Interconnection switch S1 is arranged between first disconnecting link D1 and second disconnecting link D2;Described first disconnecting link D1, interconnection switch S1
Constitute the first critical point with the second disconnecting link D2;
Interconnection switch S2 is arranged between the 5th disconnecting link D5 and the 6th disconnecting link D6;Described 5th disconnecting link D5, interconnection switch S2,
6th disconnecting link D6 constitutes the second critical point;
The circuit being positioned at the first front end, critical point is set to line number X1;User R1 is last user of line number X1;
The circuit being positioned between the first critical point and the second critical point is set to line number X2;User R2 is last use of line number X2
Family;
The circuit being positioned at the second critical point rear end is set to line number X3;Wherein line number X1 < X2 < X3;
After last user R1 that line number is X1 circuit and before the first disconnecting link D1, install the first voltage transformer TP1,
One current transformer TA1, bidirectional measuring intelligent meter P1 and the first acquisition terminal T1;Bidirectional measuring intelligent meter P1 passes through the first voltage
Transformer TP1 and the first current transformer TA1 obtains respectively and flows through the voltage and current that line number is X1 circuit;First gathers eventually
The information of bidirectional measuring intelligent meter P1 is read in end T1 timing, and is transferred to acquisition system T;
After last user R2 that line number is X2 circuit and before the 5th disconnecting link D5, install the second voltage transformer TP2,
Two current transformer TA2, bidirectional measuring intelligent meter P2 and the second acquisition terminal T2;Second voltage transformer TP2 and the second electric current
Transformer TA2 obtains voltage and current respectively and is transferred to bidirectional measuring intelligent meter P2;Bidirectional measuring intelligent meter P2 is by the second electricity
Pressure transformer TP2 and the second current transformer TA2 obtains respectively and flows through the voltage and current that line number is X2 circuit;Second gathers
The information of bidirectional measuring intelligent meter P2 is read in the timing of terminal T2, and is transferred to acquisition system T;
When installing bidirectional measuring intelligent meter P1, to flow to the first disconnecting link D1 side as forward, bidirectional measuring intelligent meter P2 is being installed
When, to flow to disconnecting link D5 side as forward;
(1) in block switch F Guan Bi, during the 3rd disconnecting link D3 and the 4th disconnecting link D4 Guan Bi, interconnection switch S1, interconnection switch S2, the
One disconnecting link D1 and the second disconnecting link D2 all opens, and the 5th disconnecting link D5 and the 6th disconnecting link D6 opens, and bidirectional measuring intelligent meter P1-P2 is without electricity
Stream passes through, and produces without electricity, and line loss per unit calculates sees (formula 1) ~ (formula 3):
Z1=(A1-B1)/A1 (formula 1)
Z2=(A2-B2)/A2 (formula 2)
Z3=(A2-B3)/A3 (formula 3)
In (formula 1) ~ (formula 3), Z1: line number is the line loss per unit of X1 circuit, and A1: line number is the table electricity of X1 circuit, B1: line
Specially public change user's electricity that road number is X1 circuit, Z2: line number is the line loss per unit of X2 circuit, and A2: line number is the 2 of X2 circuit
Table electricity, B2: line number is that all special public of X2 circuit becomes user's electricity, and Z3: line number is the line loss per unit of X3 circuit, A3:
Line number is the table electricity of X3 circuit, and B3: line number is that all special public of X3 circuit becomes user's electricity;
When line number is the circuit that the circuit band line number of X2 is X3, interconnection switch S2 closes, and disconnecting link D5 and D6 closes, now P2
Flow through forward current, the circuit power load that record circuit number is X3;Second acquisition terminal T2 is according to bidirectional measuring intelligent meter P2
Forward current occur, the on-the-spot method of operation of automatic decision is the circuit that the circuit band line number that line number is X2 is X3, now line
Loss rate calculates sees (formula 4) ~ (formula 5):
Z4=(A4-B4-Q1)/A4 (formula 4)
Z5=(A5+Q1-B5)/(A5+Q1) (formula 5)
Z4 line number is the line loss per unit of X2 circuit, and A4: line number is the table electricity of X2 circuit, and B4: line number is the institute of X2 circuit
Having the specially public user's electricity that becomes, Q1: bidirectional measuring intelligent meter P2 turns record forward electricity during band, and Z5: line number is the circuit of X3
Line loss per unit, A5: line number is the circuit table electricity of X3, and B5: line number is all special public change user's electricity of circuit of X3;
When line number is the circuit that the circuit band line number of X3 is X2, interconnection switch S2 closes, the 5th disconnecting link D5 and the 6th disconnecting link
D6 closes, and now bidirectional measuring intelligent meter P2 flows through reversing the current, the circuit power load that record circuit number is X2;Second gathers
There is reversing the current according to bidirectional measuring intelligent meter P2 in terminal T2, and the on-the-spot method of operation of automatic decision is the circuit that line number is X3
With the circuit that line number is X2, now line loss per unit calculates and sees (formula 6) ~ (formula 7):
Z6=(A6+Q2-B6)/(A6+Q2) (formula 6)
Z7=(A7-Q2-B7)/A7 (formula 7)
Z6: line number is the line loss per unit of X2 circuit, and A6: line number is the table electricity of X2 circuit, and B6: line number is X2 circuit
All special public change user's electricity, Q2: bidirectional measuring intelligent meter P2 records reverse electricity during turning band, Z7: line number is X3 circuit
Line loss per unit, A7: line number is the table electricity of X3 circuit, and B7: line number is that all special public of X3 circuit becomes user's electricity.
Line number is the circuit of X1 and each circuit line loss per unit computing formula and line when line number is to turn band between the circuit of X2
The circuit that road number is X2 is that when turning band between the circuit of X3, each circuit line loss per unit computing formula is identical with line number;
(2) when block switch, the 3rd disconnecting link D3 and the 4th disconnecting link D4 open, line number be the circuit of X2 be X3 by line number respectively
Circuit and the circuit that line number is X1 turn band, the bidirectional measuring intelligent meter P2 that now interconnection switch S2 place installs occurs reverse
Electric current, there is forward current in the bidirectional measuring intelligent meter P1 installing at interconnection switch S1, and the first acquisition terminal T1 and second gathers
The forward and reverse electric current that terminal T2 is occurred by field erected bidirectional measuring intelligent meter P1-P2 respectively simultaneously, it is judged that circuit is line
Circuit and the circuit that line number is X1 that road number is X3 turn band X2 circuit respectively;
Now line loss calculation formula:
Z8=(A8-B8-Q3)/A8 (formula 8)
Z9=(Q4+Q3-B9)/(Q4+Q3) (formula 9)
Z10=(A10-B10-Q4)/A10 (formula 10)
Z8: line number is the line loss of X1 circuit, and A8: line number is the table electricity of X1 circuit, and B8: line number is all of X1 circuit
Specially public change user's electricity, Q3: bidirectional measuring intelligent meter P1 turns carried charge i.e. forward active energy;
Z9: line number is the line loss of X2 circuit, and B9: line number is that all special public of X2 circuit becomes user's electricity, Q4: bidirectional measuring
Intelligent meter P2 turns the i.e. reverse active energy of carried charge;
Z10: line number is the line loss of X3 circuit, and A10: line number is the table electricity of X3 circuit, and B10: line number is X3 circuit
All special public change user's electricity.
Embodiment (see Fig. 2):
1., after little last user of line number circuit of contact node hand in hand, before disconnecting link, pacify according to site specific
Dress voltage transformer, current transformer, bidirectional measuring intelligent meter and acquisition terminal.In above-mentioned model, circuit 457 and 551 is handed in hand
Node is just arranged on 457 line sides;551 and 937 circuits are just arranged on 551 line sides.
2. during intelligent meter in-site installation, to flow to disconnecting link side as forward.
3., when properly functioning, switch, disconnecting link are opened, and table meter no current passes through, without electricity generation, and line loss calculation formula:
551 circuit line losses=(all special public change user's electricity under 551 Source of Gateway Meter electricity-551 circuits)/551 Source of Gateway Meter electricity
937 circuit line losses=(all special public change user's electricity under 937 Source of Gateway Meter electricity-937 circuits)/937 Source of Gateway Meter electricity
457 circuit line losses=(all special public change user's electricity under 457 Source of Gateway Meter electricity-457 circuits)/457 Source of Gateway Meter electricity
4., when Du's northern station band 551 circuit and alliance's station 937 circuit, interconnection switch and disconnecting link Guan Bi, now table meter flows through forward electricity
Stream, records 937 circuit power loads.There is forward current according to table meter in acquisition system, and the on-the-spot method of operation of automatic decision is Du
Northern station band 551 circuit and alliance station 937 circuits, now line loss calculation formula:
Du Beizhan 551 circuit line loss=(all special public power transformation amount-new clothes intelligent meters of Du Beizhan 551 Source of Gateway Meter electricity-551 circuit turn
Electricity is recorded during band)/Du Beizhan 551 Source of Gateway Meter electricity
Alliance's station 937 circuit line losses=(new clothes intelligent meter turn band during all special public power transformation amounts of electricity-937 circuit)/new clothes intelligence
Table turns electricity during band
Note: electricity statistics all from new clothes intelligent meter forward current occurs calculating.
5., when alliance station band 937 circuits and Du Beizhan 551 circuit, interconnection switch and disconnecting link Guan Bi, now table meter flows through instead
To electric current, record 551 circuit power loads.There is reversing the current according to table meter in acquisition system, the on-the-spot method of operation of automatic decision
Carry 937 circuits and Du Beizhan 551 circuit for alliance station, now line loss calculation formula:
Alliance's station 937 circuit line losses=(all special public power transformation amount-new clothes intelligence of alliance's station 937 circuit Source of Gateway Meter electricity-937 circuit
Table turns electricity during band)/alliance station 937 circuit Source of Gateway Meter electricity
Du Beizhan 551 circuit line loss=(new clothes intelligent meter turn band during all special public power transformation amounts of electricity-551 circuit)/new clothes intelligence
Table turns electricity during band
Note: electricity statistics all from new clothes intelligent meter forward current occurs calculating.
6. block switch 2015 is opened, when 551 two sections of circuits are turned band by 937 circuits and 457 circuits respectively, and now interconnection
Switching the intelligent meter installed at 2438 and reversing the current occur, there is forward current in the intelligent meter installed at interconnection switch 2310, adopts
By the forward and reverse electric current that field erected two intelligent meters occur simultaneously, collecting system judges that circuit is that Liang Ge transformer station turns respectively
With 551 circuits one section.
Now line loss calculation formula:
551 circuit line losses=(2438 switch new clothes intelligent meters turn carried charge (reverse active energy)+interconnection switch 2310 new clothes intelligence
Energy table turns all special public change user's electricity under carried charge (forward active energy)-551 circuits)/(2438 switch new clothes intelligent meters turn
Carried charge (reverse active energy)+interconnection switch 2310 new clothes intelligent meter turns carried charge (forward active energy))
937 circuit line losses=(under 937 Source of Gateway Meter electricity-937 circuits, all special public user's electricity-2438 that become switch new clothes intelligent meter
Turn carried charge (reverse active energy)/937 Source of Gateway Meter electricity
457 circuit line losses=(under 457 Source of Gateway Meter electricity-457 circuits, all special public affairs become user's electricity-interconnection switch 2310 new clothes intelligence
Energy table turns carried charge (forward active energy))/457 Source of Gateway Meter electricity
Note: electricity statistics all from new clothes intelligent meter forward current occurs calculating.
The above embodiment is only the preferred embodiments of the present invention, and and non-invention possible embodiments exhaustive.
For persons skilled in the art, done any aobvious to it on the premise of without departing substantially from the principle of the invention and spirit
And the change being clear to, all should be contemplated as falling with within the claims of the present invention.