CN105515204A - Intelligent transformer substation simulation switch, equipment and method - Google Patents
Intelligent transformer substation simulation switch, equipment and method Download PDFInfo
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- CN105515204A CN105515204A CN201610065652.2A CN201610065652A CN105515204A CN 105515204 A CN105515204 A CN 105515204A CN 201610065652 A CN201610065652 A CN 201610065652A CN 105515204 A CN105515204 A CN 105515204A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an intelligent transformer substation simulation switch, equipment and a method. The intelligent transformer substation simulation switch comprises a control loop and a direct-current power supply loop, a position output contact, an analog quantity control loop and a GOOSE and SV parsing loop which are connected with the control loop; the GOOSE and SV parsing loop is connected with a GOOSE receiving and sending optical port and an SV receiving optical port; the control loop is connected with a closing coil and a opening coil and used for controlling opening and closing of a three-phase switch in a manual mode or automatically controlling opening and closing of the three-phase switch according to received opening and closing commands of the analog quantity control loop and the GOOSE and SV parsing loop. The intelligent transformer substation simulation switch has the advantages that the intelligent optical ports and a switch operating mechanism are integrated, and therefore the intelligent simulation switch can directly control the three-phase switch in the manual mode and also can automatically control the three-phase switch through the control commands sent by the analog quantity control loop or the GOOSE and SV parsing loop.
Description
Technical field
The present invention relates to Artificial switch technical field, be specifically related to a kind of intelligent substation Artificial switch, Apparatus and method for.
Background technology
Comprehensive automation system of transformer substation is a kind of Intelligent integral system; it is that the station end equipment RTU of dispatching automation and the microcomputer protecting device of transformer station develop into the product that be combined with each other to a certain degree, is to grow up on the basis of computer technology and the network communications technology.It is from transformer station's entirety; the protection of the equipment such as circuit breaker, transformer, isolating switch, monitoring, measurement, signal, telemechanical, communication, direct current and five anti-functions are integrated in one; to realize resource-sharing; function is avoided to repeat; reach transformer station's reliability service and convenient automation modular device managed more; and according to preset program with require a kind of complex automatic system of transformer station being carried out to automatic monitoring, measurement, coordination, it is a kind of method of automatic technology at application in substations.
Need the cooperation using switch during test comprehensive automation system of transformer substation protection supervisory equipment, and real switch cost is high, volume large, inconvenient daily test uses.Along with the development that intelligent substation is built, switch is also progressively intelligent, needs to support optical signal transmission.Existing Artificial switch is mostly heavier, and the function that volume is little is not comprehensive again, does not such as have position output contact or only have three-phase separate to close a floodgate do not have single-phase divide-shut brake etc.And existing Artificial switch is all use for normal station, does not possess GOOSE, SV input, the functions such as GOOSE output.
Summary of the invention
Object of the present invention is exactly to solve the problem, propose a kind of intelligent substation Artificial switch, Apparatus and method for, this switchgear can substitute the use of intelligent high-pressure switch in transmission test in intelligent substation, there is the advantage that volume is little, cost is low, easy to use, and do not damage intelligent high-pressure switch, extend the useful life of intelligent high-pressure switch.
To achieve these goals, the present invention adopts following technical scheme:
A kind of intelligent substation Artificial switch, comprising: control loop and the DC power supply circuit be connected with described control loop, position output contact, Analog control loop and GOOSE, SV resolve loop; Described GOOSE, SV resolve loop and receive with GOOSE, send light mouth and SV and receive light mouth and be connected respectively;
Described DC power supply circuit is for providing the power supply of Artificial switch work;
Described position output contact is used for resolving loop respectively to Analog control loop and GOOSE and SV and exports one group of threephase switch position contact;
The analog quantity of described Analog control loop receiving lines electric current, line voltage distribution and busbar voltage, and carry out Logic judgment according to described analog quantity size and the threephase switch position received, export divide-shut brake order to control loop, carry out the control of switch divide-shut brake;
Described GOOSE, SV resolve loop and receive the analog quantity that SV receives line current, line voltage distribution and the busbar voltage that light mouth sends, and carry out Logic judgment according to described analog quantity size and the threephase switch position received, export divide-shut brake order to control loop, carry out the control of switch divide-shut brake; Or directly receive light mouth by GOOSE and receive divide-shut brake order to control loop, carry out three-phase separate shutting-brake control;
Described control loop connects closing coil and breaking coil respectively, for controlling the divide-shut brake of threephase switch manually or resolving the divide-shut brake order in loop according to the Analog control loop received and GOOSE, SV, automatically control the divide-shut brake of threephase switch.
Described DC power supply exports two-way independent DC power supply, respectively as the working power of Artificial switch and the power supply of control switch divide-shut brake.
Described control loop comprises: manual A is harmonious, trip(ping) circuit, specifically comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The branch road three that the shunt circuit of the normally closed contact KL_TA1 of relay K L_JA coil and relay K L_TA, the normal opened contact KL_CA1 of relay K L_JA normal opened contact KL_JA4 and relay K L_CA is sequentially connected in series;
Normally closed contact KL_JA5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CA coil and relay K L_JA and the shunt circuit of hand combination switch A are sequentially connected in series; Normally closed contact KL_JA1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TA coil and relay K L_JA and the shunt circuit of hand TRIP A are sequentially connected in series; The branch road six that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch A, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP A are connected in series.
Described control loop comprises: manual B is harmonious, trip(ping) circuit, specifically comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The branch road four that the shunt circuit of the normally closed contact KL_TB1 of relay K L_JB coil and relay K L_TB, the normal opened contact KL_CB1 of relay K L_JB normal opened contact KL_JB4 and relay K L_CB is sequentially connected in series;
Normally closed contact KL_JB5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CB coil and relay K L_JB and the shunt circuit of hand combination switch B are sequentially connected in series; Normally closed contact KL_JB1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TB coil and relay K L_JB and the shunt circuit of hand TRIP B are sequentially connected in series; The branch road seven that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch B, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP B are connected in series;
Described control loop comprises: manual C is harmonious, trip(ping) circuit, specifically comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The branch road five that the shunt circuit of the normally closed contact KL_TC1 of relay K L_JC coil and relay K L_TC, the normal opened contact KL_CC1 of relay K L_JC normal opened contact KL_JC4 and relay K L_CC is sequentially connected in series;
Normally closed contact KL_JC5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CC coil and relay K L_JC and the shunt circuit of hand combination switch C are sequentially connected in series; Normally closed contact KL_JC1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TC coil and relay K L_JC and the shunt circuit of hand TRIP C are sequentially connected in series; The branch road eight that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch C, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP C are connected in series.
Described relay K L_CA coil and resistance R1 are connected in parallel, relay K L_CB coil and resistance R2 are connected in parallel, relay K L_CC coil and resistance R3 are connected in parallel, and described resistance R1, resistance R2 and resistance R3 are respectively by the size of resistance adjustment circuit adjustment resistance.
Described control loop also comprises: manual three-phase is closing circuit and manual three-phase sub-gate circuit simultaneously simultaneously;
Described manual three-phase simultaneously closing circuit comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The series arm one of relay K L_SH coil and three-phase closing switch; Manual A is harmonious, trip(ping) circuit; Manual B is harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit;
Described manual three-phase simultaneously sub-gate circuit comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The series arm two of relay K L_ST coil and three-phase trip switch; Manual A is harmonious, trip(ping) circuit; Manual B is harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit.
Described control loop also comprises: three-phase closing circuit and automatic three-phase sub-gate circuit simultaneously simultaneously automatically;
Described automatic three-phase simultaneously closing circuit comprises: Analog control circuit controls three-phase closes a floodgate and GOOSE, SV resolve circuit controls three-phase combined floodgate;
Described automatic three-phase simultaneously sub-gate circuit comprises: Analog control circuit controls three-phase separating brake and GOOSE, SV resolve circuit controls three-phase separating brake.
The normally closed contact KL_JB7 of the normally closed contact KL_JA7 of relay K L_JA and normal opened contact KL_JA3, relay K L_JB and the normally closed contact KL_JC7 of normal opened contact KL_JB3 and relay K L_JC and normal opened contact KL_JC3 accesses GOOSE, SV respectively and resolves loop;
The normally closed contact KL_JB8 of the normally closed contact KL_JA8 of relay K L_JA and normal opened contact KL_JA9, relay K L_JB and the normally closed contact KL_JC8 of normal opened contact KL_JB9 and relay K L_JC and normal opened contact KL_JC9 accesses Analog control loop respectively.
The described Logic judgment that carries out is specially:
The relevant Logic judgment program of preset analog quantity size to line current, line voltage distribution and busbar voltage in loop and threephase switch present position is resolved at Analog control loop or GOOSE, SV, namely, after above-mentioned analog quantity size and threephase switch present position all meet and impose a condition, just output divide-shut brake order is to control loop; The described sets itself as required that imposes a condition.
Be integrated with an equipment for intelligent substation Artificial switch, comprise: housing, integrated intelligent substation simulation switch, cooling system and Artificial switch position indicator in described housing.
Described Artificial switch position indicator comprises: A phase co-bit indicator light, B phase co-bit indicator light, C phase co-bit indicator light, A phase jump an indicator light, B phase is jumped an indicator light and jumped an indicator light with C phase.
The connection of described Artificial switch position indicator is specially:
Following branch road is connected in parallel between DC power anode and negative pole:
The series arm nine of the normally-closed contact KL_JA6 of A phase co-bit indicator light and relay K L_JA;
A phase jumps the series arm ten of the normally-closed contact KL_JA2 of an indicator light and relay K L_JA;
The series arm 11 of the normally-closed contact KL_JB6 of B phase co-bit indicator light and relay K L_JB;
B phase jumps the series arm 12 of the normally-closed contact KL_JB2 of an indicator light and relay K L_JB;
The series arm 13 of the normally-closed contact KL_JC6 of C phase co-bit indicator light and relay K L_JC;
C phase jumps the series arm 14 of the normally-closed contact KL_JC2 of an indicator light and relay K L_JC.
A kind of intelligent substation Artificial switch implementation method, comprising:
For A phase closing operation:
Hand combination switch A closes, and Voltage On state is to relay K L_CA coil, and its normally opened contact KL_CA1 that links closes, and makes relay K L_JA coil motion; Relay K L_JA coil motion makes its normally opened contact KL_JA4 close, and normally-closed contact KL_JA5 separately, forms interlocking anti-jump loop; Normally opened contact KL_JA1 closes simultaneously, and breaking coil A is connected, and A phase is closed a floodgate; When normally opened contact KL_JA1 closes, the electronic work of relay K L_TA coil strap, normally-closed contact KL_TA1 separately, makes relay K L_JA coil power loss recovery;
Deciliter operating principle of A phase sub-switching operation and B phase, C phase is the same.
A kind of intelligent substation Artificial switch implementation method, comprising:
For three-phase manual closing operation:
Three-phase closing switch closes, and makes relay K L.SH coil motion, and interlock normally opened contact KL.SH1 closes, and A phase, B phase and C phase carry out closing operation respectively simultaneously afterwards, and implementation procedure is identical with single phase closing operating process;
Three-phase manual sub-switching operation principle is the same.
The invention has the beneficial effects as follows:
(1) intelligent simulation switch of the present invention has merged intelligent optical mouth and switch operating mechanism, make intelligent simulation switch directly can carry out threephase switch control in a manual manner, also can send control command by Analog control loop or GOOSE, SV parsing loop and automatically realize threephase switch control.
(2) the present invention is coordinated with Intelligent protection measuring controller by GOOSE, SV interface, carries out reception breaker tripping and closing order, sends operations such as jumping co-bit signal, analog quantity logical operation.Use the common element such as dynamic circuit connector relay and contactor to form core circuit, price is low, and buying easily.
(3) simulated high-pressure switch deciliter state of the present invention, decrease transmission test high-voltage switch action frequency, improve high-voltage switch gear mechanical endurance, and there is the infologic calculation functions such as conventional simulation amount, SV analog quantity, position of the switch contact, facilitate the needs of daily test job.
Accompanying drawing explanation
Fig. 1 is intelligent substation Artificial switch device structure schematic diagram of the present invention;
Fig. 2 is embodiment of the present invention intelligent substation Artificial switch internal structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
A kind of intelligent substation Artificial switch, comprising: control loop and the DC power supply circuit be connected with described control loop, position output contact, Analog control loop and GOOSE, SV resolve loop;
DC power supply circuit is for providing the power supply of Artificial switch work; DC power supply exports two-way independent DC power supply, respectively as the working power of Artificial switch and the power supply of control switch divide-shut brake.
Position output contact is used for resolving loop respectively to Analog control loop and GOOSE and SV and exports one group of threephase switch position contact.A phase is often opened, B phase is often opened, C phase is often opened is one group of normal opened contact, and A phase is normally closed, B phase is normally closed, C phase is normally closed is one group of normally closed contact.Intelligent simulation switch exports three groups of normal opened contacts, three groups of normally closed contacts.Resolve loop to GOOSE, SV and send light port transmission by GOOSE and to use to protection supervisory equipment and to receive after analog quantity that light mouth accesses carries out logical operation a three-phase breaker tripping and closing order with SV to control loop for each one group; Each one group uses to Analog control loop, sends out three-phase breaker tripping and closing order to control loop with line current, line voltage distribution, busbar voltage after carrying out logical operation; Each one group is spare space output contact in addition.
The analog quantity of described Analog control loop receiving lines electric current, line voltage distribution and busbar voltage, and described analog quantity and the threephase switch position contact received are carried out logical operation, export divide-shut brake order to control loop, carry out three-phase separate shutting-brake control.
GOOSE, SV resolve loop and receive with GOOSE, send light mouth and SV and receive light mouth and be connected respectively; GOOSE, SV resolve loop and GOOSE sends and receive light mouth, SV reception light mouth arranges for adapting to intelligent station optical signal transmission.Each position of the switch contact that control loop sends can be received, carry out sending light mouth by GOOSE after opto-electronic conversion and digital reconnaissance logical analysis through high-performance intelligent object assembly and send to protection supervisory equipment to use; Can receive to SV analog quantity that light mouth receives and each position of the switch contact of sending of control loop carries out logical operation, a breaker tripping and closing order carries out three-phase separate shutting-brake control to control loop; Also can receive by GOOSE the breaker tripping and closing order that light mouth directly receives protection supervisory equipment transmission, after opto-electronic conversion and digital reconnaissance logical analysis, issue control loop carry out three-phase separate combined floodgate.
Above-mentioned detailed process of carrying out logical operation is:
The relevant Logic judgment program of preset analog quantity size to line current, line voltage distribution and busbar voltage in loop and threephase switch present position is resolved at Analog control loop or GOOSE, SV, namely, after above-mentioned analog quantity size and threephase switch present position all meet and impose a condition, just output divide-shut brake order is to control loop; The described sets itself as required that imposes a condition.Such as:
For Analog control loop, logical definition is: suppose be 1 line for 2 line time, when two groups of busbar voltages be greater than definite value, A phase switch has a point position, B phase switch has co-bit, C phase switch has co-bit, after 15s, two groups of busbar voltages disappear, second group of line current is less than definite value, first group of line voltage distribution is greater than definite value and then satisfies condition.Export divide-shut brake order to control loop, carry out the control of switch divide-shut brake.
Loop is resolved for GOOSE, SV, logical definition is: suppose be 1 line for 2 line time, when two groups of busbar voltages be greater than definite value, A phase switch has a point position, B phase switch has co-bit, C phase switch has co-bit, after 15s, two groups of busbar voltages disappear, second group of line current is less than definite value, first group of line voltage distribution is greater than definite value and then satisfies condition.Export divide-shut brake order to control loop, carry out the control of switch divide-shut brake.
Control loop connects closing coil and breaking coil respectively, for controlling the divide-shut brake of threephase switch manually or resolving the divide-shut brake order in loop according to the Analog control loop received and GOOSE, SV, controls the divide-shut brake of threephase switch.
It is important to note that intelligent substation Artificial switch is when carrying out manual single-phase conjunction trip operation or manual three-phase and close trip operation simultaneously, do not need to arrange Analog control loop and GOOSE, SV resolve loop.Therefore, intelligent substation Artificial switch of the present invention can work independently when not having Analog control loop and GOOSE, SV resolve loop.
Closing coil is for connecting the corresponding relay normally-closed contact end of the outlet of protection supervisory equipment combined floodgate and control loop; equipment provides three groups of closing coils (A phase closing coil, B phase closing coil, C phase closing coil), can single phase closing or three-phase close a floodgate simultaneously.Breaking coil is for connecting the corresponding contact device normally opened contact end of protection supervisory equipment tripping operation outlet and control loop; equipment provides three groups of breaking coils (A phase breaking coil, B phase breaking coil, C phase breaking coil), can single-phase tripping operation or three-phase trip simultaneously.
Control loop comprises: manually A is harmonious, trip(ping) circuit, manually B are harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit; Specific implementation is:
As shown in Figure 2, between DC power anode and negative pole, following branch road is connected in parallel:
Manual A is harmonious, trip(ping) circuit comprises:
The branch road three that the shunt circuit of the normally closed contact KL_TA1 of relay K L_JA coil and relay K L_TA, the normal opened contact KL_CA1 of relay K L_JA normal opened contact KL_JA4 and relay K L_CA is sequentially connected in series;
Normally closed contact KL_JA5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CA coil and relay K L_JA and the shunt circuit of hand combination switch A are sequentially connected in series; Normally closed contact KL_JA1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TA coil and relay K L_JA and the shunt circuit of hand TRIP A are sequentially connected in series; The branch road six that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch A, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP A are connected in series;
Manual B is harmonious, trip(ping) circuit comprises:
The branch road four that the shunt circuit of the normally closed contact KL_TB1 of relay K L_JB coil and relay K L_TB, the normal opened contact KL_CB1 of relay K L_JB normal opened contact KL_JB4 and relay K L_CB is sequentially connected in series;
Normally closed contact KL_JB5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CB coil and relay K L_JB and the shunt circuit of hand combination switch B are sequentially connected in series; Normally closed contact KL_JB1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TB coil and relay K L_JB and the shunt circuit of hand TRIP B are sequentially connected in series; The branch road seven that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch B, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP B are connected in series;
Manual C is harmonious, trip(ping) circuit comprises:
The branch road five that the shunt circuit of the normally closed contact KL_TC1 of relay K L_JC coil and relay K L_TC, the normal opened contact KL_CC1 of relay K L_JC normal opened contact KL_JC4 and relay K L_CC is sequentially connected in series;
Normally closed contact KL_JC5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CC coil and relay K L_JC and the shunt circuit of hand combination switch C are sequentially connected in series; Normally closed contact KL_JC1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TC coil and relay K L_JC and the shunt circuit of hand TRIP C are sequentially connected in series; The branch road eight that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch C, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP C are connected in series.
Preferably, relay K L_CA coil and resistance R1 are connected in parallel, relay K L_CB coil and resistance R2 are connected in parallel, and relay K L_CC coil and resistance R3 are connected in parallel, and resistance R1, resistance R2 and resistance R3 are respectively by the size of resistance adjustment circuit adjustment resistance.The size of regulable control loop coil coupling parallel resistance, can select, to meet the demand of different external connection protection supervisory equipment between 0 ~ 600 Europe.
Alternatively execution mode, control loop also comprises: manual three-phase is closing circuit and manual three-phase sub-gate circuit simultaneously simultaneously; Specific implementation is as follows:
As shown in Figure 2, between DC power anode and negative pole, following branch road is connected in parallel:
Manual three-phase simultaneously closing circuit comprises:
The series arm one of relay K L_SH coil and three-phase closing switch;
Manual A is harmonious, trip(ping) circuit, manually B are harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit;
Manual three-phase simultaneously sub-gate circuit comprises:
The series arm two of relay K L_ST coil and three-phase trip switch;
Manual A is harmonious, trip(ping) circuit, manually B are harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit.
Alternatively execution mode, control loop also comprises: three-phase closing circuit and automatic three-phase sub-gate circuit simultaneously simultaneously automatically;
Automatic three-phase simultaneously closing circuit comprises: Analog control circuit controls three-phase closes a floodgate and GOOSE, SV resolve circuit controls three-phase combined floodgate;
Automatic three-phase simultaneously sub-gate circuit comprises: Analog control circuit controls three-phase separating brake and GOOSE, SV resolve circuit controls three-phase separating brake.
As shown in Figure 2, specific implementation is: close at manual three-phase, on the basis of trip(ping) circuit simultaneously,
The normally closed contact KL_JB7 of the normally closed contact KL_JA7 of relay K L_JA and normal opened contact KL_JA3, relay K L_JB and the normally closed contact KL_JC7 of normal opened contact KL_JB3 and relay K L_JC and normal opened contact KL_JC3 accesses GOOSE, SV respectively and resolves loop;
The normally closed contact KL_JB8 of the normally closed contact KL_JA8 of relay K L_JA and normal opened contact KL_JA9, relay K L_JB and the normally closed contact KL_JC8 of normal opened contact KL_JB9 and relay K L_JC and normal opened contact KL_JC9 accesses Analog control loop respectively.
Alternatively execution mode, be integrated in housing by intelligent substation Artificial switch and form intelligent substation Artificial switch equipment, be also provided with cooling system in housing, housing is provided with Artificial switch position indicator; Concrete structure as shown in Figure 1.
Cooling system uses separate fan to carry out the heat elimination work of intelligent simulation switch, with dust cover.Need manually boot or stop fan running.
Artificial switch position indicator comprises: A phase co-bit indicator light, B phase co-bit indicator light, C phase co-bit indicator light, A phase jump an indicator light, B phase is jumped an indicator light and jumped an indicator light with C phase.As shown in Figure 2, its specific implementation is:
Be harmonious at manual A, trip(ping) circuit, manually B be harmonious, trip(ping) circuit and manually C be harmonious, on the basis of trip(ping) circuit, between DC power anode and negative pole, be connected in parallel following branch road:
The series arm nine of the normally-closed contact KL_JA6 of A phase co-bit indicator light and relay K L_JA;
A phase jumps the series arm ten of the normally-closed contact KL_JA2 of an indicator light and relay K L_JA;
The series arm 11 of the normally-closed contact KL_JB6 of B phase co-bit indicator light and relay K L_JB;
B phase jumps the series arm 12 of the normally-closed contact KL_JB2 of an indicator light and relay K L_JB;
The series arm 13 of the normally-closed contact KL_JC6 of C phase co-bit indicator light and relay K L_JC;
C phase jumps the series arm 14 of the normally-closed contact KL_JC2 of an indicator light and relay K L_JC.
The course of action of three-phase breaker is exactly that closing coil is energized then breaker closing in fact, and switching winding is energized then breaker open operation.In order to single-phase manual conjunction trip operation is described, three-phase manual closes trip operation simultaneously and three-phase closes the concrete methods of realizing of trip operation automatically simultaneously, and the present embodiment is described to make A phase close a floodgate.
Suppose current state A phase separating brake.KL.JA7 (normally closed) and KL.JA3 (often opening) position contact input resolve loop to GOOSE, SV; KL.JA8 (normally closed) and KL.JA9 (often opening) position contact input are to Analog control loop; KL.JA5 (normally closed) and KL.JA1 (often opening) is spare space output contact.If make A phase close a floodgate four kinds of modes:
(1) manually A phase is closed a floodgate, and hand combination switch A junction closure in Fig. 2, makes positive and negative 220V Voltage On state to KL.CA relay, and interlock KL.CA1 normally opened contact closes, and makes the KL.JA actuating of relay.The KL.JA actuating of relay makes the KL.JA4 closing of contact, and KL.JA5 normally-closed contact separately, forms interlocking anti-jump loop.KL.JA1 normally opened contact closes simultaneously, and breaking coil A is connected.Make KL.JA6 normally-closed contact separately during the KL.JA actuating of relay, TWA (A phase jumps a lamp) goes out, and KL.JA2 normally opened contact closes, and HWA (A phase co-bit lamp) is bright, and closing operation completes.When KL.JA1 normally opened contact closes, the charged action of KL.TA relay, KL.TA1 normally-closed contact separately, makes KL.JA relay power loss recovery.Deciliter operating principle of A phase sub-switching operation and B phase, C phase is the same.
(2) manual three-phase closes a floodgate simultaneously, and three-phase closing switch is closed makes the KL.SH actuating of relay, interlock KL.SH1 junction closure, and A phase, B phase and C phase carry out closing operation respectively simultaneously afterwards, and implementation procedure is identical with single phase closing operating process; Three-phase manual trip operation principle is the same.
(3) Analog control circuit controls three-phase closes a floodgate, Analog control loop through line current loop, line voltage distribution loop, busbar voltage loop and position of the switch contact input amount comprehensive descision, condition meets backward control loop and sends out the order of three-phase combined floodgate, make the KL.SH actuating of relay, interlock KL.SH1 junction closure, A phase, B phase and C phase carry out closing operation respectively simultaneously afterwards, and implementation procedure is identical with single phase closing operating process; Automatic trip operating principle is the same.
(4) GOOSE, SV resolve circuit controls three-phase combined floodgate, GOOSE, SV resolve the logical relation of the position of the switch contact that loop is inputted by the analog quantity and control loop judging the input of SV reception light mouth, send out three-phase after condition meets and close a floodgate order to control loop, make the KL.SH actuating of relay, interlock KL.SH1 junction closure, A phase, B phase and C phase carry out closing operation respectively simultaneously afterwards, and implementation procedure is identical with single phase closing operating process.
GOOSE, SV parsing loop also can receive light mouth reception breaker tripping and closing order by GOOSE and send out the order of three-phase combined floodgate directly to control loop, make the KL.SH actuating of relay, interlock KL.SH1 junction closure, A phase, B phase and C phase carry out closing operation respectively simultaneously afterwards, and implementation procedure is identical with single phase closing operating process; Automatic trip operating principle is the same.
Perfect in shape and function of the present invention, use simple, various mode is applied in a flexible way, and has carried out a large amount of total group tests to coordinating with Intelligent protection measuring controller.Result of the test illustrates that this intelligent simulation switch performance index reaches technical requirement; correctly can show actual closing position, open position; manually, Analog control loop and GOOSE, SV resolve loop all can make simulation divide-shut brake coil and protective device correct operation, and intelligent optical mouth GOOSE, SV reception transmission information is all correct.
Should say that the invention of this device solves the problem of Intelligent protection measuring controller test difficulty, fill up the technological gap that intelligent substation protection measuring and controlling equipment cannot simulate actual switch in all kinds of inspection work; Enrich the means of smart machine fault detect, improve smart machine running quality; Effectively reduce the frequent divide-shut brake number of times that breaker apparatus is meaningless, improve the useful life of circuit breaker.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. an intelligent substation Artificial switch, is characterized in that, comprising: control loop and the DC power supply circuit be connected with described control loop, position output contact, Analog control loop and GOOSE, SV resolve loop; Described GOOSE, SV resolve loop and receive with GOOSE, send light mouth and SV and receive light mouth and be connected respectively;
Described DC power supply circuit is for providing the power supply of Artificial switch work;
Described position output contact is used for resolving loop respectively to Analog control loop and GOOSE and SV and exports one group of threephase switch position contact;
The analog quantity of described Analog control loop receiving lines electric current, line voltage distribution and busbar voltage, and carry out Logic judgment according to described analog quantity size and the threephase switch position received, export divide-shut brake order to control loop, carry out the control of switch divide-shut brake;
Described GOOSE, SV resolve loop and receive the analog quantity that SV receives line current, line voltage distribution and the busbar voltage that light mouth sends, and carry out Logic judgment according to described analog quantity size and the threephase switch position received, export divide-shut brake order to control loop, carry out the control of switch divide-shut brake; Or directly receive light mouth by GOOSE and receive divide-shut brake order to control loop, carry out three-phase separate shutting-brake control;
Described control loop connects closing coil and breaking coil respectively, for controlling the divide-shut brake of threephase switch manually or resolving the divide-shut brake order in loop according to the Analog control loop received and GOOSE, SV, automatically control the divide-shut brake of threephase switch.
2. a kind of intelligent substation Artificial switch as claimed in claim 1, it is characterized in that, described control loop comprises: manual A is harmonious, trip(ping) circuit, specifically comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The branch road three that the shunt circuit of the normally closed contact KL_TA1 of relay K L_JA coil and relay K L_TA, the normal opened contact KL_CA1 of relay K L_JA normal opened contact KL_JA4 and relay K L_CA is sequentially connected in series;
Normally closed contact KL_JA5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CA coil and relay K L_JA and the shunt circuit of hand combination switch A are sequentially connected in series; Normally closed contact KL_JA1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TA coil and relay K L_JA and the shunt circuit of hand TRIP A are sequentially connected in series; The branch road six that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch A, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP A are connected in series.
3. a kind of intelligent substation Artificial switch as claimed in claim 1, it is characterized in that, described control loop comprises: manual B is harmonious, trip(ping) circuit, specifically comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The branch road four that the shunt circuit of the normally closed contact KL_TB1 of relay K L_JB coil and relay K L_TB, the normal opened contact KL_CB1 of relay K L_JB normal opened contact KL_JB4 and relay K L_CB is sequentially connected in series;
Normally closed contact KL_JB5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CB coil and relay K L_JB and the shunt circuit of hand combination switch B are sequentially connected in series; Normally closed contact KL_JB1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TB coil and relay K L_JB and the shunt circuit of hand TRIP B are sequentially connected in series; The branch road seven that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch B, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP B are connected in series.
4. a kind of intelligent substation Artificial switch as claimed in claim 1, it is characterized in that, described control loop comprises: manual C is harmonious, trip(ping) circuit, specifically comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The branch road five that the shunt circuit of the normally closed contact KL_TC1 of relay K L_JC coil and relay K L_TC, the normal opened contact KL_CC1 of relay K L_JC normal opened contact KL_JC4 and relay K L_CC is sequentially connected in series;
Normally closed contact KL_JC5, the relay K L_SH normal opened contact KL_SH1 of relay K L_CC coil and relay K L_JC and the shunt circuit of hand combination switch C are sequentially connected in series; Normally closed contact KL_JC1, the relay K L_ST normal opened contact KL_ST1 of relay K L_TC coil and relay K L_JC and the shunt circuit of hand TRIP C are sequentially connected in series; The branch road eight that the shunt circuit of relay K L_SH normal opened contact KL_SH1 and hand combination switch C, the shunt circuit of relay K L_ST normal opened contact KL_ST1 and hand TRIP C are connected in series.
5. a kind of intelligent substation Artificial switch as claimed in claim 1 or 2 or 3 or 4, it is characterized in that, described control loop also comprises: manual three-phase is closing circuit and manual three-phase sub-gate circuit simultaneously simultaneously;
Described manual three-phase simultaneously closing circuit comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The series arm one of relay K L_SH coil and three-phase closing switch; Manual A is harmonious, trip(ping) circuit; Manual B is harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit;
Described manual three-phase simultaneously sub-gate circuit comprises:
Following branch road is connected in parallel between DC power anode and negative pole:
The series arm two of relay K L_ST coil and three-phase trip switch; Manual A is harmonious, trip(ping) circuit; Manual B is harmonious, trip(ping) circuit and manually C be harmonious, trip(ping) circuit.
6. a kind of intelligent substation Artificial switch as claimed in claim 1, it is characterized in that, described control loop also comprises: three-phase closing circuit and automatic three-phase sub-gate circuit simultaneously simultaneously automatically;
Described automatic three-phase simultaneously closing circuit comprises: Analog control circuit controls three-phase closes a floodgate and/or GOOSE, SV resolve circuit controls three-phase combined floodgate;
Described automatic three-phase simultaneously sub-gate circuit comprises: Analog control circuit controls three-phase separating brake and/or GOOSE, SV resolve circuit controls three-phase separating brake.
7. a kind of intelligent substation Artificial switch as claimed in claim 1, is characterized in that, described in carry out Logic judgment and be specially:
The relevant Logic judgment program of preset analog quantity size to line current, line voltage distribution and busbar voltage in loop and threephase switch present position is resolved at Analog control loop or GOOSE, SV, namely, after above-mentioned analog quantity size and threephase switch present position all meet and impose a condition, just output divide-shut brake order is to control loop; The described sets itself as required that imposes a condition.
8. be integrated with an equipment for intelligent substation Artificial switch as claimed in claim 1, comprise: housing, integrated intelligent substation simulation switch in described housing, cooling system and Artificial switch position indicator; It is characterized in that, described Artificial switch position indicator comprises: A phase co-bit indicator light, B phase co-bit indicator light, C phase co-bit indicator light, A phase jump an indicator light, B phase is jumped an indicator light and jumped an indicator light with C phase;
The connection of described Artificial switch position indicator is specially:
Following branch road is connected in parallel between DC power anode and negative pole:
The series arm nine of the normally-closed contact KL_JA6 of A phase co-bit indicator light and relay K L_JA;
A phase jumps the series arm ten of the normally-closed contact KL_JA2 of an indicator light and relay K L_JA;
The series arm 11 of the normally-closed contact KL_JB6 of B phase co-bit indicator light and relay K L_JB;
B phase jumps the series arm 12 of the normally-closed contact KL_JB2 of an indicator light and relay K L_JB;
The series arm 13 of the normally-closed contact KL_JC6 of C phase co-bit indicator light and relay K L_JC;
C phase jumps the series arm 14 of the normally-closed contact KL_JC2 of an indicator light and relay K L_JC.
9. an intelligent substation Artificial switch implementation method as claimed in claim 2, is characterized in that, comprising:
For A phase closing operation:
Hand combination switch A closes, and Voltage On state is to relay K L_CA coil, and its normally opened contact KL_CA1 that links closes, and makes relay K L_JA coil motion; Relay K L_JA coil motion makes its normally opened contact KL_JA4 close, and normally-closed contact KL_JA5 separately, forms interlocking anti-jump loop; Normally opened contact KL_JA1 closes simultaneously, and breaking coil A is connected, and A phase is closed a floodgate; When normally opened contact KL_JA1 closes, the electronic work of relay K L_TA coil strap, normally-closed contact KL_TA1 separately, makes relay K L_JA coil power loss recovery;
Deciliter operating principle of A phase sub-switching operation and B phase, C phase is the same.
10. an intelligent substation Artificial switch implementation method as claimed in claim 5, is characterized in that, comprising:
For three-phase manual closing operation:
Three-phase closing switch closes, and makes relay K L.SH coil motion, and interlock normally opened contact KL.SH1 closes, and A phase, B phase and C phase carry out closing operation respectively simultaneously afterwards, and implementation procedure is identical with single phase closing operating process;
Three-phase manual sub-switching operation principle is the same.
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