CN105044430B - The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side - Google Patents
The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side Download PDFInfo
- Publication number
- CN105044430B CN105044430B CN201510310178.0A CN201510310178A CN105044430B CN 105044430 B CN105044430 B CN 105044430B CN 201510310178 A CN201510310178 A CN 201510310178A CN 105044430 B CN105044430 B CN 105044430B
- Authority
- CN
- China
- Prior art keywords
- bus
- outlet
- arranged side
- electric current
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of the tributary electric current detecting method and system of the outlet arranged side by side of double-bus distribution equipment；The tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side includes：Circuit-breaker status and disconnecting link state corresponding to detection mother, each outlet；Wherein, the circuit-breaker status, disconnecting link state include closure state and off-state；Mother electric current is detected respectively, respectively goes out line current；According to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting two tributaries of outlet arranged side by side current value；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, and the electric current of outlet arranged side by side is divided into two tributaries in output end.It can accurately detect the current value in two tributaries of outlet arranged side by side in double-bus distribution equipment, distributed in order to carry out the electric current of follow-up double-bus distribution equipment associated loop according to the current value in two tributaries of the outlet arranged side by side detected, be advantageous to improve the security of double-bus distribution equipment.
Description
Technical field
The present invention relates to technical field of electric power, more particularly to a kind of tributary electric current of double-bus distribution equipment outlet arranged side by side
Detection method and system.
Background technology
Transformer station's double-bus distribution equipment, when carrying out " first closing post-tensioning " operation of falling bus, exist because disconnecting link closes a floodgate not
In place, the reason such as GIS busbar joints insertion depth deficiency, loose contact, contact resistance is excessive, or even open circuit, is pulled open in disconnecting link
On-load broaching tool lock is caused during operation, the risk that busbar short-circuit be present, the major accident of two sections of bus loss of pressure of generation.
Double-bus distribution equipment generally comprises two buses, and every bus corresponds to some outlets, the electric current of every outlet
It can be shunted in its output end, be divided into two tributaries；Wherein, it is respectively mounted open circuit on each bus, outlet and the tributary of outlet
Device, disconnecting link；Breaker, disconnecting link close, and illustrate corresponding circuit pathways, in the breaker, disconnecting link on certain branch road one or
Two disconnections of person, then illustrate corresponding circuit breaker；If the disconnecting link on two tributaries of certain outlet closes, the outlet is arranged side by side
Outlet.
The detection of the tributary electric current of double-bus distribution equipment outlet arranged side by side is to double-bus distribution equipment associated loop electric current point
With significant, prior art can only typically detect the electric current of each outlet, it is difficult to detect double-bus distribution equipment and list
The tributary electric current of line.
The content of the invention
Based on this, it is necessary to be difficult to the skill of tributary electric current for detecting the outlet arranged side by side of double-bus distribution equipment for prior art
Art problem, there is provided a kind of the tributary electric current detecting method and system of the outlet arranged side by side of double-bus distribution equipment.
A kind of tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side, comprises the following steps：
Circuit-breaker status and disconnecting link state corresponding to detection mother, each outlet；Wherein, the circuit-breaker status, disconnecting link shape
State includes closure state and off-state；
Mother electric current is detected respectively, respectively goes out line current；
According to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting outlet arranged side by side two tributaries
Current value；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, and the electric current of outlet arranged side by side is divided into two in output end
Tributary.
A kind of tributary current detecting system of double-bus distribution equipment outlet arranged side by side, including：
First detection module, for detecting mother, circuit-breaker status and disconnecting link state corresponding to each outlet；Wherein, it is described
Circuit-breaker status, disconnecting link state include closure state and off-state；
Second detection module, for detecting mother electric current respectively, respectively going out line current；
3rd detection module, for according to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting
The current value in two tributaries of outlet arranged side by side；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, the electricity of outlet arranged side by side
Stream is divided into two tributaries in output end.
The tributary electric current detecting method and system of above-mentioned double-bus distribution equipment outlet arranged side by side, according to mother, each outlet pair
The circuit-breaker status and disconnecting link state and mother electric current answered, respectively go out line current, the current value in two tributaries of outlet arranged side by side is entered
Row detection, can accurately detect the current value in two tributaries of outlet arranged side by side in double-bus distribution equipment, in order to according to being examined
The current value in two tributaries of outlet arranged side by side surveyed carries out the electric current distribution of follow-up double-bus distribution equipment associated loop, is advantageous to
Improve the security of double-bus distribution equipment.
Brief description of the drawings
Fig. 1 is the tributary electric current detecting method flow chart of the double-bus distribution equipment outlet arranged side by side of one embodiment；
Fig. 2 is the double-bus distribution device structure schematic diagram of one embodiment；
Fig. 3 is the tributary current detecting system structural representation of the double-bus distribution equipment outlet arranged side by side of one embodiment.
Embodiment
Below in conjunction with the accompanying drawings to the tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side provided by the invention and
The embodiment of system is described in detail.
With reference to figure 1, Fig. 1 show the tributary electric current detecting method of the double-bus distribution equipment outlet arranged side by side of one embodiment
Flow chart, comprise the following steps：
S10, circuit-breaker status and disconnecting link state corresponding to detection mother, each outlet；Wherein, the circuit-breaker status, knife
Lock state includes closure state and off-state；
With reference to figure 2, Fig. 2 show the double-bus distribution device structure schematic diagram of the present embodiment, and as shown, the double-bus is matched somebody with somebody
Electric equipment includes two buses：Bus 1 and bus 2, four outlets：Outlet 1, outlet 2, outlet 3, outlet 4, and mother；One
Individual bus corresponds to some outlets, as shown in Fig. 2 the corresponding outlet 3 of bus 1, the i.e. electric current of outlet 3 can flow into bus 1；Bus 2
Corresponding outlet 2 and outlet 4, the i.e. electric current of outlet 2 and outlet 4 can flow into bus 2；Wherein, the electric current of mother is IML, outlet 1, go out
The electric current of line 2, outlet 3 and outlet 4 is respectively I1、I2、I3、I4, the line current that goes out of every outlet is divided into two in output end
Tributary, the electric current in two tributaries of outlet 1 is respectively I11、I12, open circuit is respectively mounted on each bus, outlet and the tributary of outlet
Device, disconnecting link, above-mentioned breaker, disconnecting link include disconnecting and closure two states, breaker, disconnecting link close, and illustrate corresponding electricity
Road path, if both illustrate corresponding circuit breaker without all closures.Due to breaking on the different period, each circuit
Road device, the state of disconnecting link are different, it is therefore desirable to detect breaker, the state of disconnecting link respectively first.
S20, mother electric current is detected respectively, respectively goes out line current；
S30, according to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting two branch of outlet arranged side by side
The current value of stream；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, and the electric current of outlet arranged side by side is divided into output end
Two tributaries.
In one embodiment, above-mentioned steps S30 can include：
The space-number that two bus disconnecting links of detection close；
If the space-number that two bus disconnecting links close is 1, determined according to the current trend of double-bus distribution equipment
Each bus exports the first relation of each phase current vector and each bus output current to each outlet, and each outlet input to
Each phase current vector of each bus and the second relation of each bus input current；
The current value in two tributaries of outlet arranged side by side is determined according to the first relation and the second relation.
In the present embodiment, the space-number that two bus disconnecting links close is arranged side by side for 1 two buses of explanation, can be according to bus
The disconnecting link state of the output of electric current and each outlet builds the first relation and the second relation；When the disconnecting link shape of double-bus distribution equipment
State is as shown in Fig. 2 the disconnecting link i.e. in mother closes, and the disconnecting link on two tributary circuits of outlet 1 closes, outlet 2, outlet
3 and the outlet 1 of outlet 4 two tributary circuits on disconnecting link as shown in Fig. 2 one disconnect, one closure, now, first close
System can be constructed as equation：I11=-IML-I3, the second relation can be constructed as equation：I12=-I2+IML-I4, wherein, I11、I12
The respectively electric current in two tributaries of outlet 1, IMLFor the electric current of mother, I2、I3、I4Respectively outlet 2, outlet 3 and outlet 4
Electric current；Above-mentioned first relation and the second relation are solved, can be to determine the predicted value in the two of each outlet tributaries.
As one embodiment, the step of the space-number that above-mentioned two bus disconnecting links of detection close after can include：
If the space-number that two bus disconnecting links close is 0, between return two bus disconnecting links of detection close
Every several steps.
In the present embodiment, if the space-number that two bus disconnecting links close is 0, illustrate that now the double-bus distribution is set
It is standby that the bus to work side by side is not present, it can treat that the space-number that two bus disconnecting links close not is 0, i.e. the double-bus distribution is set
When standby bus works side by side, then the space-number that two bus disconnecting links close is detected again.
As one embodiment, the step of the space-number that above-mentioned two bus disconnecting links of detection close after can include：
If the space-number that two bus disconnecting links close is more than 1, judges that disconnecting link corresponding to bus has failure, enter
Row alarm.
In the present embodiment, if the space-number that two bus disconnecting links close is more than 1, illustrate the now double-bus distribution
The bus number many more than two that equipment works side by side, come in and gone out with theoretical situation outlet, the possible outlet failure of disconnecting link corresponding to bus, this
When need the situation is alarmed, notify related personnel to be confirmed to the situation and further handled.
The tributary electric current detecting method for the double-bus distribution equipment outlet arranged side by side that the present embodiment provides, according to mother, respectively go out
Circuit-breaker status corresponding to line and disconnecting link state and mother electric current, respectively go out line current, to the electric current in two tributaries of outlet arranged side by side
Value is detected, and the current value in two tributaries of outlet arranged side by side in double-bus distribution equipment can be accurately detected, in order to basis
The current value in two tributaries of the outlet arranged side by side detected carries out the electric current distribution of follow-up double-bus distribution equipment associated loop, has
Beneficial to the security for improving double-bus distribution equipment.
With reference to figure 3, Fig. 3 show the tributary current detecting system of the double-bus distribution equipment outlet arranged side by side of one embodiment
Structural representation, including：
First detection module 10, for detecting mother, circuit-breaker status and disconnecting link state corresponding to each outlet；Wherein, institute
State circuit-breaker status, disconnecting link state includes closure state and off-state；
Second detection module 20, for detecting mother electric current respectively, respectively going out line current；
3rd detection module 30, for according to the circuit-breaker status, disconnecting link state, mother electric current, respectively go out line current inspection
Survey the current value in two tributaries of outlet arranged side by side；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, outlet arranged side by side
Electric current is divided into two tributaries in output end.
In one embodiment, above-mentioned 3rd detection module can be further used for：
The space-number that two bus disconnecting links of detection close；
If the space-number that two bus disconnecting links close is 1, determined according to the current trend of double-bus distribution equipment
Each bus exports the first relation of each phase current vector and each bus output current to each outlet, and each outlet input to
Each phase current vector of each bus and the second relation of each bus input current；
The current value in two tributaries of outlet arranged side by side is determined according to the first relation and the second relation.
As one embodiment, above-mentioned 3rd detection module can be further used for：
If the space-number that two bus disconnecting links close is 0, between return two bus disconnecting links of detection close
Every several steps.
As one embodiment, above-mentioned 3rd detection module can be further used for：
If the space-number that two bus disconnecting links close is more than 1, judges that disconnecting link corresponding to bus has failure, enter
Row alarm.
The tributary current detecting system of the double-bus distribution equipment outlet arranged side by side of the present invention and the double-bus distribution of the present invention
The tributary electric current detecting method of equipment outlet arranged side by side corresponds, in the tributary electric current of above-mentioned double-bus distribution equipment outlet arranged side by side
The technical characteristic and its advantage that the embodiment of detection method illustrates are applied to the branch of double-bus distribution equipment outlet arranged side by side
In the embodiment for flowing current detecting system, hereby give notice that.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side, it is characterised in that comprise the following steps：
Circuit-breaker status and disconnecting link state corresponding to detection mother, each outlet；Wherein, the circuit-breaker status, disconnecting link state bag
Include closure state and off-state；
Mother electric current is detected respectively, respectively goes out line current；
According to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting two tributaries of outlet arranged side by side electric current
Value；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, and the electric current of outlet arranged side by side is divided into two branch in output end
Stream.
2. the tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side according to claim 1, it is characterised in that
It is described according to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting two tributaries of outlet arranged side by side electric current
The step of value, includes：
The space-number that two bus disconnecting links of detection close；
If the space-number that two bus disconnecting links close is 1, each mother is determined according to the current trend of double-bus distribution equipment
Line exports the first relation of each phase current vector and each bus output current to each outlet, and each outlet is inputted to each mother
Each phase current vector of line and the second relation of each bus input current；
The current value in two tributaries of outlet arranged side by side is determined according to the first relation and the second relation.
3. the tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side according to claim 2, it is characterised in that
Include after the step of space-number that two bus disconnecting links of the detection close：
If the space-number that two bus disconnecting links close is 0, the space-number that two bus disconnecting links of detection close is returned
The step of.
4. the tributary electric current detecting method of double-bus distribution equipment outlet arranged side by side according to claim 2, it is characterised in that
Include after the step of space-number that two bus disconnecting links of the detection close：
If the space-number that two bus disconnecting links close is more than 1, judges that disconnecting link corresponding to bus has failure, reported
It is alert.
A kind of 5. tributary current detecting system of double-bus distribution equipment outlet arranged side by side, it is characterised in that including：
First detection module, for detecting mother, circuit-breaker status and disconnecting link state corresponding to each outlet；Wherein, the open circuit
Device state, disconnecting link state include closure state and off-state；
Second detection module, for detecting mother electric current respectively, respectively going out line current；
3rd detection module, for arranged side by side according to the circuit-breaker status, disconnecting link state, mother electric current, each outlet current detecting
The current value in two tributaries of outlet；Wherein, outlet arranged side by side refers to the outlet that two bus disconnecting links close, and the electric current of outlet arranged side by side exists
Output end is divided into two tributaries.
6. the tributary current detecting system of double-bus distribution equipment outlet arranged side by side according to claim 5, it is characterised in that
3rd detection module is further used for：
The space-number that two bus disconnecting links of detection close；
If the space-number that two bus disconnecting links close is 1, each mother is determined according to the current trend of double-bus distribution equipment
Line exports the first relation of each phase current vector and each bus output current to each outlet, and each outlet is inputted to each mother
Each phase current vector of line and the second relation of each bus input current；
The current value in two tributaries of outlet arranged side by side is determined according to the first relation and the second relation.
7. the tributary current detecting system of double-bus distribution equipment outlet arranged side by side according to claim 6, it is characterised in that
3rd detection module is further used for：
If the space-number that two bus disconnecting links close is 0, the space-number that two bus disconnecting links of detection close is returned
The step of.
8. the tributary current detecting system of double-bus distribution equipment outlet arranged side by side according to claim 6, it is characterised in that
3rd detection module is further used for：
If the space-number that two bus disconnecting links close is more than 1, judges that disconnecting link corresponding to bus has failure, reported
It is alert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310178.0A CN105044430B (en) | 2015-06-05 | 2015-06-05 | The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310178.0A CN105044430B (en) | 2015-06-05 | 2015-06-05 | The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105044430A CN105044430A (en) | 2015-11-11 |
| CN105044430B true CN105044430B (en) | 2018-01-16 |
Family
ID=54451120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510310178.0A Active CN105044430B (en) | 2015-06-05 | 2015-06-05 | The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105044430B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762922B (en) * | 2016-04-07 | 2017-12-15 | 国网江苏省电力公司电力科学研究院 | Based on the hot appraisal procedure of falling operation safety early warning of double-bus every knife Current calculation |
| CN105866509B (en) * | 2016-05-05 | 2018-11-23 | 北京英博电气股份有限公司 | A kind of double-bus Current Mutual Inductance sampling controller |
| CN106199415B (en) * | 2016-07-06 | 2019-02-15 | 广东电网有限责任公司电力调度控制中心 | Female process median generatrix disconnecting link method for detecting position and system are fallen based on main station system heat |
| CN109390939B (en) * | 2018-11-23 | 2021-10-08 | 国网江苏省电力有限公司检修分公司 | Differential diagnosis method for incomplete closing of isolation knife switch during bus inversion operation based on current analysis |
| CN113341206B (en) * | 2021-06-21 | 2022-03-04 | 广东电网有限责任公司 | Method and device for determining steps of GIS double-bus parallel current |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661410A (en) * | 1994-09-16 | 1997-08-26 | Asea Brown Boveri Ag | Method and apparatus for the detection of the current distribution in a conductor of an electric machine |
| CN1812226A (en) * | 2005-01-25 | 2006-08-02 | 辽宁省电力有限公司辽阳供电公司 | Adaptive master variable, parent connection and connecting line stand-by dispensing device and realizing method |
| CN101694505A (en) * | 2009-09-24 | 2010-04-14 | 江苏省电力公司南通供电公司 | Method for simulating load test with transformer substation bus differential protection current |
| CN203895766U (en) * | 2014-06-20 | 2014-10-22 | 国家电网公司 | Double busbar and double subsection based substation main wiring system |
| CN204256041U (en) * | 2014-12-24 | 2015-04-08 | 国家电网公司 | The adaptively sampled line selection apparatus of double-bus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012193975A (en) * | 2011-03-15 | 2012-10-11 | Nissin Electric Co Ltd | Electric apparatus insulation diagnostic device |
-
2015
- 2015-06-05 CN CN201510310178.0A patent/CN105044430B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661410A (en) * | 1994-09-16 | 1997-08-26 | Asea Brown Boveri Ag | Method and apparatus for the detection of the current distribution in a conductor of an electric machine |
| CN1812226A (en) * | 2005-01-25 | 2006-08-02 | 辽宁省电力有限公司辽阳供电公司 | Adaptive master variable, parent connection and connecting line stand-by dispensing device and realizing method |
| CN101694505A (en) * | 2009-09-24 | 2010-04-14 | 江苏省电力公司南通供电公司 | Method for simulating load test with transformer substation bus differential protection current |
| CN203895766U (en) * | 2014-06-20 | 2014-10-22 | 国家电网公司 | Double busbar and double subsection based substation main wiring system |
| CN204256041U (en) * | 2014-12-24 | 2015-04-08 | 国家电网公司 | The adaptively sampled line selection apparatus of double-bus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105044430A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105044430B (en) | The tributary electric current detecting method and system of double-bus distribution equipment outlet arranged side by side | |
| CN104953568B (en) | A kind of fault protecting method of flexible direct current power transmission system | |
| US8749933B2 (en) | Fault protection of HVDC transmission lines | |
| CN107438929B (en) | Method for being protected in combined power transmission line | |
| Descloux et al. | Protection algorithm based on differential voltage measurement for MTDC grids | |
| CN104849602B (en) | GIS double-bus distribution equipment fault detection methods and system | |
| CN103983857B (en) | A kind of D.C. isolation observation circuit and method | |
| CN101297448B (en) | A converter station | |
| US8102634B2 (en) | Differential protection method, system and device | |
| CN104137372A (en) | A DC-power system with system protection capabilities | |
| CN107367669A (en) | The method that broken string transmission line of electricity is locked based on negative sequence network | |
| CN105226607B (en) | A kind of extra-high voltage direct-current layer-specific access system 100Hz harmonic protection methods | |
| CN106771804B (en) | A kind of transmission line of electricity broken string area judging method based on zero-sequence network | |
| CN104515934A (en) | HHT (Hilbert-Huang transform)-based microcomputer small-current earth-fault line selection device | |
| CN106711965A (en) | Power transmission line broken line determining method based on semaphore transmission | |
| CN103412239A (en) | Detecting and positioning method of bus coupler flashover fault in subway alternating current power system | |
| CN102005819A (en) | Fault isolation method of electric distribution network | |
| CN106786417A (en) | A kind of transmission line of electricity broken string method of discrimination based on electrical quantity transmission | |
| CN106501661A (en) | A kind of transmission line of electricity broken string area judging method based on signal transmission | |
| CN104009453B (en) | A kind of fault detection method for micro-capacitance sensor off-grid operation situation | |
| JP2019507573A (en) | Improvements in or related to power systems | |
| WO2012136241A1 (en) | Fault handling during circuit breaker maintenance in a double-breaker busbar switchyard | |
| CN106340954A (en) | Method for identifying line breaking of power supply line and switching to standby power supply | |
| CN208142825U (en) | A kind of high voltage bus rapid protecting device | |
| CN109038513B (en) | A kind of intelligent processing method of the broken string ground connection for failure phase transfer earthing or grounding means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |