CN205178631U - Two -way standby system of junctor - Google Patents
Two -way standby system of junctor Download PDFInfo
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- CN205178631U CN205178631U CN201520994650.2U CN201520994650U CN205178631U CN 205178631 U CN205178631 U CN 205178631U CN 201520994650 U CN201520994650 U CN 201520994650U CN 205178631 U CN205178631 U CN 205178631U
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- 230000008054 signal transmission Effects 0.000 claims abstract description 31
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- 230000005540 biological transmission Effects 0.000 abstract description 6
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- 230000003287 optical effect Effects 0.000 abstract 5
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- 230000005611 electricity Effects 0.000 description 6
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- 239000013307 optical fiber Substances 0.000 description 3
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Abstract
The utility model discloses during two -way standby system of junctor is applied to electric power system, can realize contactting an automatic safety device of two -way reserve function. Including two -way spare equipment of junctor and fiber optical signal transmission device, two -way spare equipment of junctor and fiber optical signal transmission device link to each other, adopt the cable with two -way spare equipment's fit grafting point far away through terminal row be connected to import the connection point terminal corresponding of fiber optical signal transmission device on, the fiber optical signal transmission device closes the fiber optical signal transmission device of request transmission to the two -way standby system of junctor of offside transformer substation in with running jointly of sending of the two -way spare equipment of junctor, the two -way spare equipment drive switch of junctor of offside transformer substation closes a floodgate, thereby it throws fully to realize a distant place. The utility model discloses it can be along with the difference of the junctor method of operation to have, and realizes two -way reserve function, makes things convenient for power dispatching, reliable power supply, reduces the power system blackouts time, avoids artifical remote control's various troubles and maloperation etc..
Description
Technical field
The two-way back-up system of the utility model interconnection is applied in electric power system, can realize a kind of automatic safety device getting in touch with two-way standby functions.
Background technology
The interior bridge main wiring mode of transformer station common is at present: a transformer station is statements based on collusion mode transformer station, the main confession of L1 circuit, L2 circuit is the interconnection between two stations, 3DL closes, and 4DL disconnects, as the stand-by power supply of the second transformer station, in first transformer station, prepared auto restart exits, and the second transformer station is the main confession of L3 circuit, the transformer station that L2 is for subsequent use, prepared auto restart normally drops into.Wherein 1DL, 6DL are 110kV service entrance switch, and 3DL, 4DL are 110kV interconnection two end switch, and 3DL, 5DL are 110kV bridge switch.Wherein 4DL is in a point position, and rest switch is all in co-bit.Existing problem is, can inlet wire prepared auto restart in the second transformer station, and prepared auto restart cannot be used in the first transformer station, because do not meet the operation condition of existing prepared auto restart, the operation condition of existing prepared auto restart is: must have a switch in a point position in three switches 1DL, 2DL, 3DL in standing.
Under prior art condition, the main restriction that can not realize prepared auto restart in the first transformer station is:
1, the action logic of prepared auto restart will be changed;
2, by signal transmission through fiber device, the conjunction 4DL far away order after prepared auto restart action to be passed to offside and correct execution.
Utility model content
The purpose of this utility model provides a kind of interconnection two-way back-up system for above-mentioned weak point, operational mode be as Liang Ge transformer station between interconnection time, side switch runs, another switch stand-by heat, stand-by heat side can realize prepared auto restart function, and prepared auto restart can not be dropped in switch operation side.How this system realizes no matter interconnection operational mode, and both sides all can realize prepared auto restart.Effectively prevent transformer station's shut down accident.Improve power system operation reliability.
The utility model takes following technical scheme to realize:
The two-way back-up system of interconnection comprises the two-way reserve arrangement of interconnection and signal transmission through fiber device, the two-way reserve arrangement of interconnection is connected with signal transmission through fiber device, cable is adopted to be connected on the correspondence input connection point terminal of signal transmission through fiber device by the splice grafting point far away of two-way reserve arrangement by terminal board, the combination switch order that two-way for interconnection reserve arrangement sends is sent to the signal transmission through fiber device in the two-way back-up system of interconnection of offside transformer station by signal transmission through fiber device, the two-way reserve arrangement driving switch of interconnection of offside transformer station closes a floodgate, thus realize the standby throwing in a distant place.
The two-way reserve arrangement of interconnection comprises AC module, CPU module, panel module, DIO module, TRIP module, power module, motherboard module, communication module and clock synchronization module; AC module, panel module, DIO module, TRIP module, power module, motherboard module, communication module and clock synchronization module are connected with CPU module respectively; DC power supply is converted to the operating voltage needed for the two-way reserve arrangement of interconnection by power module; Electric current, the voltage information of AC module collection circuit current transformer and bus-bar potential transformer deliver to CPU module; Panel module realizes human-computer dialogue, passes to CPU module by the command information that panel inputs; CPU module carries out sequential operation; DIO module (i.e. digital in-output circuit module) gathers each switching value, is sent to CPU module; TRIP module (namely trip outlet module) realizes outlet tripping operation; Communication module is used for correspondence with foreign country; Miscellaneous function when motherboard module and clock synchronization module complete and to communicate pair; The current/voltage collected and switching value information judge according to the logical program of setting by CPU module, meet charge condition to carry out charging by the two-way reserve arrangement of interconnection and be in stand-by state, if meet operation condition, namely a deciliter relevant switch is removed in interconnection two-way reserve arrangement action outlet.
The two-way reserve arrangement of interconnection has 14 road analog inputs, 22 way switch amount inputs, 6 voltage definite values, 13 current ration, 15 time definite values and 13 pairs independently contact outputs; Power supply definite value, time definite value and all input variables are as controlling the standby programmable element throwing action.
The bus arrangement method of the two-way back-up system of interconnection is as follows:
First transformer station is statements based on collusion mode transformer station, the main confession of first line, and the second circuit is the interconnection between two transformer stations (i.e. the first transformer station and the second transformer station), and the 3rd switch closes, and the 4th switch disconnects, as the stand-by power supply of the second transformer station; The main confession of tertiary circuit in second transformer station, the second circuit is for subsequent use, and prepared auto restart normally drops into; Wherein the first switch and the 6th switch are that 110kV is main for service entrance switch, and the 3rd switch and the 4th switch are 110kV interconnection two end switch, and second switch and the 5th switch are 110kV bridge switch; Wherein the 4th switch is in a point position, and rest switch is all in co-bit.
In the first transformer station, configure the two-way reserve arrangement of interconnection, concrete steps are as follows:
1) two-way for interconnection reserve arrangement is accessed the divide-shut brake position quantity of the first switch, second switch and the 3rd switch and the controlled quentity controlled variable of outlet divide-shut brake, the voltage of access two sections of bus PT, the controlled quentity controlled variable contact of distant place combined floodgate the 4th switch is connected with signal transmission through fiber device simultaneously; The signal transmission through fiber device of the first transformer station is connected by optical fiber with the signal transmission through fiber device of the second transformer station, and the signal transmission through fiber device of the second transformer station is connected with the two-way reserve arrangement of the second transformer station by cable, so that driving switch closes a floodgate;
2) device of two-way for interconnection reserve arrangement is set to " manually arranging " and " Lookup protocol " two kinds of modes; Described " manually arranging ", namely needs user voluntarily according to the standby mode of throwing of the conventional prepared auto restart of Operation Mode Selection at that time or a distant place; Described " Lookup protocol ", namely by the two-way reserve arrangement of interconnection according to the position of the switch detected, automatically select suitable prepared auto restart logic.
Step 2) in, when the two-way reserve arrangement of interconnection detects three position of the switch i.e. the first switch, when second switch and the 3rd switch are co-bit, automatically drop into the standby throwing in distant place function logic; Comprising two kinds of situations,
2-1) when main power supply first line fault or dead electricity, first transformer station's dead electricity, the two-way reserve arrangement of interconnection judge a voltage transformer and No. two voltage transformers all with no pressure, first switch is without after stream, jump the first switch, send out the 4th switch command of closing far away to offside second transformer station, make to be powered by the 4th Switch Controller first transformer station, avoid the first full institute of transformer station dead electricity.
If 2-2) operational mode changes, 3rd switch is in a point position, 4th switch is in co-bit, namely when the second interconnection is the stand-by power supply of the first transformer station, now the two-way reserve arrangement of interconnection is by the position of detection first switch, second switch and the 3rd switch, drops into the standby logic function of throwing of conventional inlet wire; If the first switch and the 3rd switch are in co-bit, second switch in a point position, then drops into conventional bridge standby throwing logic function.
Conventional inlet wire adopts existing inlet wire for throwing mode for throwing mode, and conventional bridge adopts existing bridge for throwing mode for throwing mode.
Step 2) in, for preventing standby throwing repetitive operation, adopting and only just allowing to haul oneself willingly into after charging complete.
The course of action of native system comprises:
1) as required " manually " and " automatically " function is selected to the two-way reserve arrangement of interconnection;
2) the two-way reserve arrangement of interconnection completes the judgement of distant place standby functions according to action logic, sends out and far closes order;
3) far away conjunction is ordered by fiber transmission device by the fiber transmission device of Optical Fiber Transmission to offside transformer station;
4) order of acceptance is received protective device driving switch combined floodgate by terminal line by the fiber transmission device of offside transformer station, completes the standby action overall process of throwing in a distant place.
The utility model advantage:
1. the reverse standby functions of interconnection;
2. prevent because main power supply fault causes interconnection power transmission side transformer station shut down accident;
3. reasonably arrange the logic of the two-way reserve arrangement of interconnection, this automatic safety device is at interconnector, and various operational mode is anti-all can play effective standby functions;
4. solve and coordinate with the effective of signal transmission through fiber device, realize the transporting function of signal command;
The utility model in line with minimum input, from aspects such as the cooperations of the logic theory of modifier and hardware, realizes above four targets.The utility model has and with the difference of interconnection operational mode, and can realize two-way standby functions, facilitates dispatching of power netwoks, reliable power supply, reduces the grid power blackout time, the various trouble avoiding manual remote control to operate and misoperation etc.Improve the reliability of operation of power networks, make the operational management of electrical network more convenient, efficient technically.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described in further detail:
Fig. 1 is the bus arrangement figure not increasing the two-way back-up system of interconnection;
Fig. 2 is the use structural representation of the two-way back-up system of the utility model interconnection;
Fig. 3 is the standby logic schematic diagram thrown in the utility model distant place;
Fig. 4 is the contact schematic diagram of the interior bridge main wiring mode of the utility model specific embodiment Liang Ge transformer station.
In Fig. 1, the first transformer station 1 is statements based on collusion mode, and the second transformer station 2 is the second circuit L2 circuit standby mode.
Embodiment
With reference to accompanying drawing 1 ~ 4, the two-way back-up system of the utility model interconnection comprises the two-way reserve arrangement of interconnection and signal transmission through fiber device, the two-way reserve arrangement of interconnection is connected with signal transmission through fiber device, cable is adopted to be connected on the correspondence input connection point terminal of signal transmission through fiber device by the splice grafting point far away of two-way reserve arrangement by terminal board, the combination switch order that two-way for interconnection reserve arrangement sends is sent to the signal transmission through fiber device in the two-way back-up system of interconnection of offside transformer station by signal transmission through fiber device, the two-way reserve arrangement driving switch of interconnection of offside transformer station closes a floodgate, thus realize the standby throwing in a distant place.
The two-way reserve arrangement of interconnection comprises AC module, CPU module, panel module, DIO module, TRIP module, power module, motherboard module, communication module and clock synchronization module; AC module, panel module, DIO module, TRIP module, power module, motherboard module, communication module and clock synchronization module are connected with CPU module respectively; DC power supply is converted to the operating voltage needed for the two-way reserve arrangement of interconnection by power module; Electric current, the voltage information of AC module collection circuit current transformer and bus-bar potential transformer deliver to CPU module; Panel module realizes human-computer dialogue, passes to CPU module by the command information that panel inputs; CPU module carries out sequential operation; The each switching value of DIO module acquires, is sent to CPU module; TRIP module realizes outlet tripping operation; Communication module is used for correspondence with foreign country; Miscellaneous function when motherboard module and clock synchronization module complete and to communicate pair; The current/voltage collected and the switching value information logical program according to setting judges by CPU module, meets charge condition and carries out charging by the two-way reserve arrangement of interconnection and be in stand-by state.If meet operation condition, namely a deciliter relevant switch is removed in interconnection two-way reserve arrangement action outlet.
The two-way reserve arrangement of interconnection has 14 road analog inputs, 22 way switch amount inputs, 6 voltage definite values, 13 current ration, 15 time definite values and 13 pairs independently contact outputs; Power supply definite value, time definite value and all input variables are as controlling the standby programmable element throwing action.
The bus arrangement method of the two-way back-up system of interconnection is as follows:
First transformer station 1 is statements based on collusion mode transformer station, the main confession of first line L1, the second circuit L2 is the interconnection between two transformer stations (i.e. the first transformer station 1 and the second transformer station 2), and the 3rd switch 3DL closes, 4th switch 4DL disconnects, as the stand-by power supply of the second transformer station 2; The main confession of tertiary circuit 3L in second transformer station 2, the second circuit 2L is for subsequent use, and prepared auto restart normally drops into; Wherein the first switch 1DL and the 6th switch 6DL is that 110kV is main for service entrance switch, and the 3rd switch 3DL and the 4th switch 4DL is 110kV interconnection two end switch, and second switch 2DL and the 5th switch 5DL is 110kV bridge switch; Wherein the 4th switch 4DL is in a point position, and rest switch is all in co-bit.
In the first transformer station 1, configure the two-way reserve arrangement of interconnection, concrete steps are as follows:
1) two-way for interconnection reserve arrangement is accessed the divide-shut brake position quantity of the first switch 1DL, second switch 2DL and the 3rd switch 3DL and the controlled quentity controlled variable of outlet divide-shut brake, the voltage of access two sections of bus PT, the controlled quentity controlled variable contact of distant place combined floodgate 4DL is connected with signal transmission through fiber device simultaneously.The signal transmission through fiber device of the first transformer station is connected by optical fiber with the signal transmission through fiber device of the second transformer station, and the signal transmission through fiber device of the second transformer station is connected with the two-way reserve arrangement of the second transformer station by cable, so that driving switch closes a floodgate.
2) device of two-way for interconnection reserve arrangement is set to " manually arranging " and " Lookup protocol " two kinds of modes; Described " manually arranging ", namely needs user voluntarily according to the standby mode of throwing of the conventional prepared auto restart of Operation Mode Selection at that time or a distant place; Described " Lookup protocol ", namely by the two-way reserve arrangement of interconnection according to the position of the switch detected, automatically select suitable prepared auto restart logic.
Step 2) in, when the two-way reserve arrangement of interconnection detects that three position of the switch i.e. the first switch 1DL, second switch 2DL and the 3rd switch 3DL is co-bit, automatically drop into the standby throwing in distant place function logic; Comprising two kinds of situations,
2-1) when main power supply first line L1 fault or dead electricity, first transformer station 1 dead electricity, the two-way reserve arrangement of interconnection judges that a voltage transformer 1#PT and No. two voltage transformer 2#PT is all with no pressure, first switch 1DL is without after stream, jump the first switch 1DL, send out conjunction far away 4th switch 4DL order to offside second transformer station 2, make to be powered to the first transformer station 1 by the 4th switch 4DL, avoid full institute of the first transformer station 1 dead electricity.
If 2-2) operational mode changes, 3rd switch 3DL is in a point position, 4th switch 4DL is in co-bit, namely when the second interconnection L2 is the stand-by power supply of the first transformer station 1, now the two-way reserve arrangement of interconnection is by the position of detection first switch 1DL, second switch 2DL and the 3rd switch 3DL, drops into the standby logic function of throwing of conventional inlet wire; If the first switch 1DL and the 3rd switch 3DL is in co-bit, second switch 2DL in a point position, then drops into conventional bridge standby throwing logic function.
Conventional inlet wire adopts existing inlet wire for throwing mode for throwing mode, and conventional bridge adopts existing bridge for throwing mode for throwing mode.
Step 2) in, for preventing standby throwing repetitive operation, adopting and only just allowing to haul oneself willingly into after charging complete.
With reference to accompanying drawing 3, the standby specific works principle of throwing in a distant place of the two-way back-up system of interconnection is as follows:
Charge condition is the first switch 1DL, second switch 2DL and the 3rd switch 3DL co-bit; A bus I mother and No. two female all three-phases of bus II have pressure; Charging complete after 10 seconds;
Discharging condition is that the 3rd switch 3DL or second switch 2DL is in a point position; There is outside block signal; Hand jumps the first switch 1DL.
Action logic comprises, 1) when after charging complete, a bus-bar potential transformer (I is female), No. two bus-bar potential transformers (II is female) are all with no pressure, and an inlet wire #1 is without stream; 2) tripping first switch 1DL after the first time delay T1; 3) send out through the 3rd time delay T3 after confirming the first switch 1DL tripping and close offside switch command.
Charge condition: 1DL, 2DL co-bit, 3DL co-bit; I mother, II female all three-phases have pressure; Charging complete after 10 seconds.
Discharging condition: 3DL or 2DL is in a point position; There is outside block signal; Hand jumps 1DL.
Action logic, when after charging complete: I female, II mother is all with no pressure, #1 inlet wire is without stream, and tripping 1DL after T1 time delay, sends out through time delay T3 after confirming 1DL tripping and close offside switch command;
Terminal connections is as follows:
Voltage input-terminal X1-23, X1-24, X1-25: meet I section of bus TV voltage U a1 respectively, Ub1, Uc1;
Voltage input-terminal X1-26, X1-27, X1-28: meet II section of bus TV voltage U a2 respectively, Ub2, Uc2;
Current input terminal X1-7, X1-8: link I electric current;
Current input terminal X1-9, X1-10: link II electric current;
On-off signal terminal X2-1: the total locking of prepared auto restart;
On-off signal terminal X2-2:#1 tranformer protection actuating signal, this standby throwing of locking;
On-off signal terminal X2-5: meet 1DL and jump position TWJ normally opened contact;
On-off signal terminal X2-6: meet 2DL and jump position TWJ normally opened contact;
On-off signal terminal X2-7: meet 3DL and jump position TWJ normally opened contact;
On-off signal terminal X2-10:#2 tranformer protection actuating signal, this standby throwing of locking;
Contact lead-out terminal X3-7, X3-8: be connected to GXC-01 teletransmission outlet; Outlet 11
Contact lead-out terminal X3-9, X3-10: be connected to 1DL control box tripping operation input; Outlet 12
Contact lead-out terminal X3-11, X3-12: be connected to the input of route protection lock-reclosing lock; Outlet 12 is heavily dynamic
Relevant definite value illustrates:
Control word: adjust as mode 1 (KG1.0=1).
Voltage definite value Udz1: I mother or II female decompression definite value (being defaulted as 30V);
Voltage definite value Udz2: I mother or II mother have compression set value (being defaulted as 70V);
Current ration I dz1: I line no current definite value, differentiates (being different from TV broken string) for I female decompression;
Current ration I dz2: II line no current definite value, differentiates (being different from TV broken string) for II female decompression;
Time definite value T1: the delay time of jumping 1DL;
Time definite value T3: the delay time closing offside.
With reference to accompanying drawing 4, transformer station 1 is statements based on collusion mode transformer station, the main confession of L1 circuit, L2 circuit is the interconnection between two stations, and 3DL closes, 4DL disconnects, as the stand-by power supply of transformer station 2, what drop in transformer station 1 is the two-way reserve arrangement of interconnection, and transformer station 2 is the main confession of L3 circuit, the transformer station that L2 is for subsequent use, prepared auto restart normally drops into.Wherein 1DL, 6DL are 110kV service entrance switch, and 3DL, 4DL are 110kV interconnection two end switch, and 3DL, 5DL are 110kV bridge switch.Wherein 4DL is in a point position, and rest switch is all in co-bit.
In transformer station 1, installing is the two-way reserve arrangement of interconnection, because 3DL switch is co-bit, drops into a distant place for throwing mode.Normal 1DL, 2DL co-bit, 3DL co-bit; I mother, II female all three-phases have pressure; Device is in charged state.
Its actual act process is: when the L1 inlet wire generation permanent fault of transformer station 1 trips, and circuit overlaps not become.Two sections bus I is female, II mother is all with no pressure, L1 inlet wire is without stream, tripping 1DL after T1 time delay, send out through time delay T3 after confirming 1DL tripping and close 4DL switch command to signal transmission through fiber device GXC-01, GXC-01 device in offside transformer station 2 receives and closes 4DL switch command rear drive switch combined floodgate, power supply is adjusted to from L1 and acts in collusion to make each other's confessions mode for ground from L3-L2, complete the automatic adjustment in a distant place.
Claims (4)
1. the two-way back-up system of interconnection, it is characterized in that: comprise the two-way reserve arrangement of interconnection and signal transmission through fiber device, the two-way reserve arrangement of interconnection is connected with signal transmission through fiber device, cable is adopted to be connected on the correspondence input connection point terminal of signal transmission through fiber device by the splice grafting point far away of two-way reserve arrangement by terminal board, the combination switch order that two-way for interconnection reserve arrangement sends is sent to the signal transmission through fiber device in the two-way back-up system of interconnection of offside transformer station by signal transmission through fiber device, the two-way reserve arrangement driving switch of interconnection of offside transformer station closes a floodgate, thus realize the standby throwing in a distant place.
2. the two-way back-up system of interconnection according to claim 1, is characterized in that: the two-way reserve arrangement of described interconnection comprises AC module, CPU module, panel module, DIO module, TRIP module, power module, motherboard module, communication module and clock synchronization module; AC module, panel module, DIO module, TRIP module, power module, motherboard module, communication module and clock synchronization module are connected with CPU module respectively; DC power supply is converted to the operating voltage needed for the two-way reserve arrangement of interconnection by power module; Electric current, the voltage information of AC module collection circuit current transformer and bus-bar potential transformer deliver to CPU module; Panel module realizes human-computer dialogue, passes to CPU module by the command information that panel inputs; CPU module carries out sequential operation; DIO module and each switching value of digital in-output circuit module acquires, be sent to CPU module; TRIP module namely trip outlet module realize outlet tripping operation; Communication module is used for correspondence with foreign country; Miscellaneous function when motherboard module and clock synchronization module complete and to communicate pair; Two-way for interconnection reserve arrangement carries out charging and is in stand-by state or a deciliter relevant switch is removed in two-way for interconnection reserve arrangement action outlet by CPU module.
3. the two-way back-up system of interconnection according to claim 1, is characterized in that: the two-way reserve arrangement of interconnection has 14 road analog inputs, 22 way switch amount inputs, 6 voltage definite values, 13 current ration, 15 time definite values and 13 pairs independently contact outputs; Power supply definite value, time definite value and all input variables are as controlling the standby programmable element throwing action.
4. the two-way back-up system of interconnection according to claim 1, is characterized in that, the bus arrangement of the two-way back-up system of interconnection is as follows:
First transformer station is statements based on collusion mode transformer station, the main confession of first line, and the second circuit is the interconnections of two transformer stations that is between the first transformer station and the second transformer station, and the 3rd switch closes, and the 4th switch disconnects, as the stand-by power supply of the second transformer station; The main confession of tertiary circuit in second transformer station, the second circuit is for subsequent use, and prepared auto restart normally drops into; Wherein the first switch and the 6th switch are that 110kV is main for service entrance switch, and the 3rd switch and the 4th switch are 110kV interconnection two end switch, and second switch and the 5th switch are 110kV bridge switch; Wherein the 4th switch is in a point position, and rest switch is all in co-bit.
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| CN201520994650.2U CN205178631U (en) | 2015-12-06 | 2015-12-06 | Two -way standby system of junctor |
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| CN201520994650.2U CN205178631U (en) | 2015-12-06 | 2015-12-06 | Two -way standby system of junctor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322645A (en) * | 2015-12-06 | 2016-02-10 | 江苏省电力公司宿迁供电公司 | Call wire bi-directional backup system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322645A (en) * | 2015-12-06 | 2016-02-10 | 江苏省电力公司宿迁供电公司 | Call wire bi-directional backup system |
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