CN201311722Y

CN201311722Y - Long-distance pipeline substation simulation operation safety early-warning system

Info

Publication number: CN201311722Y
Application number: CN 200820124171
Authority: CN
Inventors: 刘彦儒; 肖兵; 王成会; 张文海; 荣萍; 张素玲; 张宝玉; 张小谦; 张淑清; 杨文川; 张伟; 张瑞鹏; 田金波
Original assignee: China Petroleum Pipeline Bureau Co Ltd
Current assignee: China Petroleum Pipeline Bureau Co Ltd
Priority date: 2008-11-26
Filing date: 2008-11-26
Publication date: 2009-09-16
Anticipated expiration: 2018-11-26

Abstract

The utility model relates to a long-distance pipeline substation simulation operation safety early-warning system for operation safety warning and training simulation in a long-distance pipeline substation, which comprises a control system and a power supply circuit, wherein the control system comprises a PLC control system, an evaluation score single chip system and an operation and indication system; various buttons and switches of the systems are all connected to the input end of a PLC, and the output end of the PLC is connected with an output control interface and the operation output; the output end of the PLC is also connected with the evaluation score single chip system, and the output of an evaluation score counter of the evaluation score single chip system is connected with an operation frequency and score display; and the power supply circuit comprises a main transformer power incoming line, a high voltage part and a lower voltage part. The utility model is multifunctional, flexible, safe and reliable and can operate repeatedly and objectively and accurately realize the actual evaluation and skill identification of operators in the substation.

Description

Long-distance pipeline substation simulation operation safety early warning system

Technical field

The utility model is the long-distance pipeline substation simulation operation safety early warning system of a kind of long-distance pipeline substation operation safety early warning and simulation training, relates to the circuit arrangement and the piping system technical field of circuit emergency protective device, power supply and distribution.

Background technology

The existing operations staff's of electric substation of long distance pipeline Training Methodology is exactly to join a regular shift or class in electric substation to practise except that school study professional knowledge at present, and is though this training method is effectively, not ideal enough; Because the characteristics of electrical production and operation are the continuitys of its production, so these characteristics have determined the operations staff can only " see, listen, think " in its routine work, and can not start experienced.In case appearance is unusual, when accident need be started, just require not carry out the various grid switching operations of system with not allowing a bit mistake in a short period of time, the personnel that this work only possesses skilled practical operation technical ability could finish well.Therefore, move safely and reliably, must effectively train, become distribution operations staff's overall qualities with raising, but there is no this type of training system now the operations staff of electric substation in order to guarantee oil and gas pump station electric substation.

The utility model content

The purpose of this utility model be a kind of function of design many, flexible, can repeatable operation, safe and reliable, can realize objective, exactly that the operation personnel of electric substation are actual and examine and the long-distance pipeline substation simulation operation safety early warning system of technical ability evaluation.

The utility model is that the typical bridge type wiring of selection long distance pipeline pumping plant electric substation is an original shape, on the basis that demonstrates fully long distance pipeline pumping plant electric substation characteristics, set of tubes pumping plant electric substation operation hilllock operator training, the technical ability of developing is identified, operation order is checked and electric substation's working state of system simulation display packing and device.

This long-distance pipeline substation simulation operation safety early warning system is based on following method route, and its control flow is divided into detecting operation button signal and operation count and score of the examination flow for displaying as shown in Figure 3.

Detecting operation button signal control flow is: as the detecting operation button signal, through logic determines, as mistake, original state is returned in the warning of then sounding; As correctly, then control respectively and send keypad tone, the indication of disconnector state, the indication of wheelbarrow switch state, circuit-breaker status indication, load and return original state after going out line states indication, the indication of building-out capacitor state by the output control interface;

Operation count and score of the examination flow for displaying are as shown in Figure 4; Examination initiating key such as invalid then shows all data, and the invalid original state of returning of reset key; If reset key is effective, then total data zero clearing; The examination initiating key is as effectively, a display operation sum then, and when the examination end key is invalid, return a display operation sum again; The examination initiating key then shows all data as effectively and when the examination end key is effective, and if this moment is the invalid original state of returning of reset key; Reset key is effective, then total data zero clearing.

Wherein:

The detecting operation button signal is divided into transformer high-voltage and transformer low voltage two parts:

Transformer high-voltage part as shown in Figure 1, transformer high-voltage partly has grounding switch, high pressure P T switch, high voltage isolator, primary cut-out, sectionalizer, section switch six parts;

Field, the station power pack (see figure 2) of low pressure has PT grounding switch, PT disconnector, disconnector, isolating switch, female connection disconnector, bus six parts;

Operation count and score of the examination flow for displaying comprise:

Double byte unsigned number multiplication routine flow process as shown in Figure 5; Operation beginning, is asked product, is recovered address pointer, end copying and saving address pointer, product unit zero clearing successively;

Double byte unsigned number division routine flow process as shown in Figure 6; Operation beginning, is established multiplication shift number of times, displacement, part remainder deduction at part remainder unit zero clearing successively, enough subtracts as part remainder deduction, and then the merchant adds 1 and deposits new remainder, returning part remainder deduction; Subtract inadequately as part remainder deduction, and shift count is less than then returning displacement; Subtract inadequately as part remainder deduction, and shift count is to then finishing;

In order to prevent unexpected the generation, in the operation safety early warning control flow, also have five anti-functions, prevent that promptly bringing onto load from closing disconnector control, prevent to jump isolating switch control by mistake, preventing that bringing onto load from drawing disconnector control, prevent charged hanging earthing conductor control, preventing to be with ground wire to close disconnector control.

Route as stated above, the system of the utility model comprises control system and feed circuit two parts.

The formation of control system is made up of PLC control system, rating result singlechip system, operation and indication mechanism as shown in Figure 7.System's operation reset button, system operation button, power supply switching push button, system's mute button, current supply circuit disconnector, current supply circuit wheelbarrow switch, current supply circuit isolating switch, load circuit disconnector, load circuit wheelbarrow switch, load circuit isolating switch, building-out capacitor disconnector all connect the input end of PLC, and the output termination of PLC 4 output control interface and the operation of direct welding system are exported, the system operation sound is exported, the system misoperation sound is reported to the police output; A respectively welding system running status indication, system operating state indication, the power supply of 4 outputs in the control interface switches indication, system's noise reduction state indication; Second connects the indication of current supply circuit disconnector state, the indication of current supply circuit wheelbarrow switch state, the indication of current supply circuit circuit-breaker status respectively; The 3rd connects busbar voltage respectively and shows that control, female busbar voltage that connects show control; The 4th connects load circuit disconnector state indication, the indication of load circuit wheelbarrow switch state, the indication of load circuit circuit-breaker status, load circuit respectively and goes out line states indication, the indication of load circuit building-out capacitor state, load circuit nominal current and show control; The 5th connects the main transformer electric pressure respectively and shows that control, current supply circuit electric pressure show control; The output terminal of PLC also is connected to rating result singlechip system, and it is that the output of score of the examination counter connects number of operations and achievement display.

Wherein:

Rating result singlechip system, the function of complete operation counting and performance rating is so be also referred to as operation count and performance rating circuit.Its theory diagram as shown in Figure 8, operation push-button connects the input of single-chip microcomputer PCU; There is the counting gating circuit of count pulse input to be arranged being connected of output and input with single-chip microcomputer PCU; The road output of single-chip microcomputer PCU connects hummer, the second tunnel output connects status displays after connecing state indication controlling and driving again, Third Road output after level translation respectively to the input of four proper operation number of times display interfaces, the four tunnel output after showing control and level translation respectively to the control end of four proper operation number of times display interfaces.Four proper operation number of times display interfaces show through demonstration decoding scheme decoding shown in Figure 10.

Operation count and performance rating circuit receive operation signal pulse (OP-IN) and the faulty operation signal pulse (ERR-IN) that PLC sends here, through be the operation count of core and performance rating circuit computing with the single-chip microcomputer, handle after, output proper operation number of times, faulty operation number of times, operation sum and score of the examination mark show proper operation number of times, faulty operation number of times, operation sum and score of the examination mark after demonstration decoding scheme decoding shown in Figure 10.

Operational counter adopts assembly language that the operation of simulated operation screen is counted and calculated, and aligns, maloperation judges, thereby provides proper operation number of times, faulty operation number of times and total number of operations, and calculate the score of the examination.

Operational counter and score of the examination display are divided into exercise and examine two kinds of working methods:

The exercise mode: pressing counter " zero clearing " by after strong, system's freedom of entry exercise working method, this moment, operational counter can show the accuracy of proper operation number of times, faulty operation number of times, total number of operations and current operation in real time;

The examination mode: pressing counter " examination beginning " by after strong, system enters the examination working method, and this moment, operational counter only showed total number of operations; When pressing counter " examination finishes ", show proper operation number of times, faulty operation number of times and the score of the examination by after strong.

Operation count and performance rating electrical schematic diagram are as shown in Figure 9.Operation push-button S ₁, S ₂, S ₃Meet single-chip microcomputer U respectively ₁P end, and meet RP1 respectively; Capacitor C ₁, C ₂One end ground connection, the other end meet output terminal EA/VP, the X that is connected to PCU behind the hummer CR1I2M respectively ₁The output terminal P of PCU ₀₀-P ₀₇Respectively through U _4A, U _4B, U _4C, U _4D, U _4E, U _4F, U _5A, U _5B1-8 end and 9-16 end to connector RIGHT, TOTAL, ERROR, ANWSER; The output terminal P of PCU ₂₀-P ₂₃Meet U respectively ₃Input end A, B, C, E ₁, E ₂, U ₃Output terminal Y ₀-Y ₇Respectively through U _5C, U _5D, U _5E, U _5F, U _6A, U _6B, U _6C, U _6DBe connected to 17,18 ends of connector RIGHT, TOTAL, ERROR, ANWSER; U ₁Output terminal P ₂₄, P ₂₅, P ₂₆, P ₂₇Meet control Driver Circuit Q respectively ₁, Q ₂, Q ₃, Q ₄Input end, these 4 control Driver Circuit are the triode amplifier of collector connecting relay, are used to drive button S ₁, S ₂, S ₃The button pilot lamp, Q ₁, Q ₂, Q ₃, Q ₄Collector connects 4001 and is the relay coil discharge diode, is used for protective transistor Q ₁, Q ₂, Q ₃, Q ₄

Operation count and performance rating display electrical schematic diagram are as shown in figure 10.It is by U ₂₀₁-U ₂₀₄4 decoder drivers 4511 and DS ₁-DS ₄4 DPY form; 1-4 termination U by 40 core connector SET ₂₀₁A, B, C, D end, 5-8 termination U ₂₀₂A, B, C, D end, 9-12 termination U ₂₀₃A, B, C, D end, 13-16 termination U ₂₀₄A, B, C, D end, the 37 termination U of connector SET ₂₀₁And U ₂₀₂LE end, the 39 termination U of connector SET ₂₀₃And U ₂₀₄LE end; Each output terminals A of 4511, B, C, D, E, F, G respectively connect a resistance and receive each DPY successively; U wherein ₂₀₁Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₀₃, R ₂₀₄, R ₂₀₅, R ₂₀₆, R ₂₀₇, R ₂₀₈, R ₂₀₉, R ₂₁₀Meet DS successively ₁A, b, c, d, e, f, g, dp end; U ₂₀₂Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₁₁, R ₂₁₂, R ₂₁₃, R ₂₁₄, R ₂₁₅, R ₂₁₆, R ₂₁₇, R ₂₁₈Meet DS successively ₂A, b, c, d, e, f, g, dp end; U ₂₀₃Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₁₉, R ₂₂₀, R ₂₂₁, R ₂₂₂, R ₂₂₃, R ₂₂₄, R ₂₂₅, R ₂₂₆Meet DS successively ₃A, b, c, d, e, f, g, dp end; U ₂₀₄Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₂₇, R ₂₂₈, R ₂₂₉, R ₂₃₀, R ₂₃₁, R ₂₃₂, R ₂₃₃, R ₂₃₄Meet DS successively ₄A, b, c, d, e, f, g, dp end.

U among Fig. 9 ₁Single-chip microcomputer is mainly finished computing and signal Processing; U _2A, U _2BAs the control gate of input signal, the resistance R of its front ₂-R ₅Finish the level conversion of the pulse signal that PLC sends here; Code translator U ₃The gating signal of decoding output display decoder (CD4511 among Figure 17), the demonstration position of control decoding output; Impact damper U _{4 (A, B, C, D, E, F)}, U _{5 (A, B, C, D, E, F)}, U _{6 (A, B, C, D)}Be used for level translation, the signal of single-chip microcomputer output and the level that shows decoding scheme are complementary; Operation push-button S ₁, S ₂, S ₃Be respectively examination beginning, score of the examination demonstration and score of the examination reset key, be used for examination and begin counting, show the zero clearing of the score of the examination display when score of the examination and next examination process begin when examination finishes.

U among Figure 10 ₂₀₁-U ₂₀₄Be decoder driver, decoder driver decoding also drives DPY.

Feed circuit partly comprise main transformer electric power incoming line, high pressure and low pressure three parts.

Long-distance pipeline substation operation safety early warning device panel synoptic diagram is seen Figure 11; The main transformer electric power incoming line as shown in figure 12.Internal bridge is adopted in main transformer electric power incoming line high-pressure side, selects two main transformers for use; Two electric power incoming lines are simulated two electric pressures, i.e. 110kV and 35kV respectively; Be provided with power supply monitoring, lightning protection and ground protection.

The high voltage supply wiring is divided into two sections, and Figure 13 is high voltage supply (I section) wiring diagram, and Figure 14 is high voltage supply (II section) wiring diagram.1# inlet wire from the 1# main transformer connects I section PT and Duo Tai pump motor; 2# inlet wire from the 2# main transformer connects II section PT, standby, stand change and many pump motors.

High voltage supply I section, II section bus contact wiring diagram are connected by the bus communication between 1# inlet wire and the 2# inlet wire as shown in figure 15.

The low-voltage power supply wiring diagram as shown in figure 16, low-pressure side adopts single-trunk segmental wiring, electric pressure is 6kV; Load has illumination, power cabinet, instrument, direct current cabinet, communication.Power cabinet load mainly is made up of power-equipments such as transfer pump, fire extinguishing pumps.

One section switchgear is selected disconnector and isolating switch for use, two sections control and protections of selecting high-tension switch cabinet as consumer for use.Be provided with devices such as load monitoring, ground protection, lightning protection, overload and short-circuit protection.

In addition, adopt infrared probe that the personnel that enter charged interval are surveyed in the native system, when personnel entered charged interval, system's alerting signal of sounding was simulated the safeguard function that prevents personnel's mistakenly entering charged chamber with this.

The high-low pressure connection principle of standing:

System detects the imitation screen action button in real time, judges whether to satisfy " five is anti-" working specification; Operate when correct, the corresponding pilot lamp of output control, a proper operation is finished in expression, and output proper operation sound and proper operation output pulse; During operating mistake, output error operation sound, and output error operation output pulse.

Long-distance pipeline substation operation safety early warning system panel synoptic diagram as shown in figure 11.

The utility model utilizes PLC technology and necessary electric substation's physical simulation equipment, can realize preventing the blocking device of electric misoperation under off-line state, promptly so-called " five is anti-" function: prevent that mistake from jumping, mistake is closed isolating switch; Prevent that bringing onto load from drawing, closing disconnector; Prevent charged hanging earthing conductor; Prevent to be with ground wire to close disconnector; Prevent personnel's mistakenly entering charged chamber.Be connected with the PLC instruction by single-chip microcomputer, reach the purpose of normal running counting, faulty operation counting, operating result scoring.

The utility model function is many, flexible, energy repeatable operation, safe and reliable, can realize the evaluation of actual examination of the operation personnel of electric substation and technical ability objective, exactly,

Description of drawings

Fig. 1 long-distance pipeline substation operation safety early warning process flow diagram (high-pressure section)

Fig. 2 long-distance pipeline substation operation safety early warning process flow diagram (low-pressure section)

System's control flow chart of Fig. 3 operation safety early warning

Fig. 4 operation count and score of the examination flow for displaying figure

Fig. 5 double byte unsigned number multiplication routine process flow diagram

Fig. 6 double byte unsigned number division routine process flow diagram

Fig. 7 long-distance pipeline substation operation safety early warning system principle diagram

Fig. 8 operation count and performance rating theory diagram

Fig. 9 operation count and performance rating electrical schematic diagram

Figure 10 operation count and performance rating display electrical schematic diagram

Figure 11 long-distance pipeline substation operation safety early warning device panel synoptic diagram

The main transformer electric power incoming line figure of Figure 12 long-distance pipeline substation operation safety early warning system

Figure 13 long-distance pipeline substation operation safety early warning system station field high voltage supply (I section) wiring diagram

Figure 14 long-distance pipeline substation operation safety early warning system station field high voltage supply (II section) wiring diagram

Figure 15 long-distance pipeline substation operation safety early warning system station field high voltage supply I section, II section bus contact wiring diagram

Figure 16 long-distance pipeline substation operation safety early warning system station field low-voltage power supply wiring diagram

Embodiment

Embodiment. the formation of this example is made up of PLC control system, rating result singlechip system, operation and indication mechanism as shown in Figure 7.System's operation reset button, system operation button, power supply switching push button, system's mute button, current supply circuit disconnector, current supply circuit wheelbarrow switch, current supply circuit isolating switch, load circuit disconnector, load circuit wheelbarrow switch, load circuit isolating switch, building-out capacitor disconnector all connect the input end of PLC, and the output termination of PLC 4 output control interface and the operation of direct welding system are exported, the system operation sound is exported, the system misoperation sound is reported to the police output; A respectively welding system running status indication, system operating state indication, the power supply of 4 outputs in the control interface switches indication, system's noise reduction state indication; Second connects the indication of current supply circuit disconnector state, the indication of current supply circuit wheelbarrow switch state, the indication of current supply circuit circuit-breaker status respectively; The 3rd connects busbar voltage respectively and shows that control, female busbar voltage that connects show control; The 4th connects load circuit disconnector state indication, the indication of load circuit wheelbarrow switch state, the indication of load circuit circuit-breaker status, load circuit respectively and goes out line states indication, the indication of load circuit building-out capacitor state, load circuit nominal current and show control; The 5th connects the main transformer electric pressure respectively and shows that control, current supply circuit electric pressure show control; The output terminal of PLC also is connected to rating result singlechip system, and it is that the output of score of the examination counter connects number of operations and achievement display.

System detects and receives imitation screen action button signal among the figure, exports control signal after the PLC logic determines, and the output control interface is changed, is extended to the simulation of panel display control signal with the control signal of PLC and shows the actuator state.

Wherein:

The exercise mode: pressing counter " zero clearing " by after strong, system's freedom of entry exercise working method, this moment, operational counter can show the accuracy of proper operation number of times, faulty operation number of times, total number of operations and current operation in real time.

Operation count and performance rating electrical schematic diagram are as shown in figure 16.Operation push-button S ₁, S ₂, S ₃Meet single-chip microcomputer U respectively ₁₀₁P end, and meet RP1 respectively; Capacitor C ₁, C ₂One end ground connection, the other end meet output terminal EA/VP, the X that is connected to PCU behind the hummer CR1I2M respectively ₁The output terminal P of PCU ₀₀-P ₀₇Respectively through U _104A, U _104B, U _104C, U _104D, U _104E, U _104F, U _105A, U _105B1-8 end and 9-16 end to connector RIGHT, TOTAL, ERROR, ANWSER; The output terminal P of PCU ₂₀-P ₂₃Meet U respectively ₁₀₃Input end A, B, C, E ₁, E ₂, U ₁₀₃Output terminal Y ₀-Y ₇Respectively through U _105C, U _105DBe connected to 17,18 ends of connector RIGHT, TOTAL, ERROR, ANWSER; U ₁Output terminal P ₂₄, P ₂₅, P ₂₆, P ₂₇Meet control Driver Circuit Q respectively ₁₀₁, Q ₁₀₂, Q ₁₀₃, Q ₁₀₄Input end, these 4 control Driver Circuit are the triode amplifier of collector connecting relay, are used to drive button S ₁, S ₂, S ₃The button pilot lamp, Q ₁₀₁, Q ₁₀₂, Q ₁₀₃, Q ₁₀₄Collector connects 4001 and is the relay coil discharge diode, is used for protective transistor Q ₁₀₁, Q ₁₀₂, Q ₁₀₃, Q ₁₀₄

Single-chip microcomputer U ₁₀₁X ₂Termination R ₁₀₁To ground and through C ₃To power supply V _CCThe operation signal pulse (OP-IN) that PLC sends here is through resistance R ₁₀₂Back one tunnel meets R in parallel ₁₀₅, C ₅To ground, another road meets U _102AOne input end, U _102AAnother the input termination from U ₁₀₁RD end; Faulty operation signal pulse (ERR-IN) is through resistance R ₁₀₃Back one tunnel meets R in parallel ₁₀₄, C ₄To ground, another road meets U _102BOne input end, U _102BAnother the input termination from U ₁₀₁RD end; U _102AThe pulse of output OP operation signal, U _102BOutput ERR faulty operation signal pulse.

Operation count and performance rating display electrical schematic diagram are as shown in figure 10.It is by U ₂₀₁-U ₂₀₄4 decoder drivers 4511 and DS ₁-DS ₄4 DPY form; 1-4 termination U by 40 core connector SET ₂₀₁A, B, C, D end, 5-8 termination U ₂₀₂A, B, C, D end, 9-12 termination U ₂₀₃A, B, C, D end, 13-16 termination U ₂₀₄A, B, C, D end, the 37 termination U of connector SET ₂₀₁And U ₂₀₂LE end, the 39 termination U of connector SET ₂₀₃And U ₂₀₄LE end; Each output terminals A of 4511, B, C, D, E, F, G respectively connect a resistance and receive each DPY successively; U wherein ₂₀₁Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₀₃, R ₂₀₄, R ₂₀₅, R ₂₀₆, R ₂₀₇, R ₂₀₈, R ₂₀₉, R ₂₁₀Meet DS successively ₁A, b, c, d, e, f, g, dp end; U ₂₀₂Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₁₁, R ₂₁₂, R ₂₁₃, R ₂₁₄, R ₂₁₅, R ₂₁₆, R ₂₁₇, R ₂₁₈Meet DS successively ₂A, b, c, d, e, f, g, dp end; U ₂₀₃Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₁₉, R ₂₂₀, R ₂₂₁, R ₂₂₂, R ₂₂₃, R ₂₂₄, R ₂₂₅, R ₂₂₆Meet DS successively ₃A, b, c, d, e, f, g, dp end; U ₂₀₄Output terminals A, B, C, D, E, F, G connect a resistance R respectively ₂₂₇, R ₂₂₈, R ₂₂₉, R ₂₃₀, R ₂₃₁, R ₂₃₂, R ₂₃₃, R ₂₃₄Meet DS successively ₄A, b, c, d, e, f, g, dp end.U ₂₀₁-U ₂₀₄LT, BI connect respectively after, LT is through R ₂₀₂Meet V _CCAnd through C ₂₀₂To ground, BI is through R ₂₀₁Meet V _CCAnd through C ₂₀₁To ground; U ₂₀₁And U ₂₀₂LE end meet LE after connecting ₁, U ₂₀₃And U ₂₀₄LE end meet LE after connecting ₂

Output L among Fig. 9 ₀-L ₃, H ₀-H ₃, LE ₁, LE ₂Input L in the corresponding map interlinking 10 ₀-L ₃, H ₀-H ₃, LE ₁, LE ₂

U among Fig. 9 ₁₀₁Single-chip microcomputer is mainly finished computing and signal Processing; U _102A, U _102BAs the control gate of input signal, the resistance R of its front ₁₀₂-R ₁₀₅Finish the level conversion of the pulse signal that PLC sends here; Code translator U ₁₀₃The gating signal of decoding output display decoder (CD4511 among Figure 17), the demonstration position of control decoding output; Impact damper U _{104 (A, B, C, D, E, F)}, U _{105 (A, B, C, D)}Be used for level translation, the signal of single-chip microcomputer output and the level that shows decoding scheme are complementary; Operation push-button S ₁, S ₂, S ₃Be respectively examination beginning, score of the examination demonstration and score of the examination reset key, be used for examination and begin counting, show the zero clearing of the score of the examination display when score of the examination and next examination process begin when examination finishes.

U among Figure 10 ₂₀₁-U ₂₀₄Be decoder driver, select the CD4511 series of products for use; Decoder driver decoding also drives DPY.

Wherein used main components and parts are:

PLC selects the FX2N of Mitsubishi Programmable Logic Controller;

CPU selects the INTEL8051 single-chip microcomputer;

Decoder driver selects CD4511;

Control gate selects 74LS08;

Code translator selects 74LS138;

Impact damper selects 7407;

DPY selects DPY-7-SEG-DF;

R ₁₀₁：1kΩ；

R ₁₀₂：1.5kΩ；

R ₁₀₃：1.5kΩ；

R ₁₀₄：1kΩ；

R ₁₀₅：1kΩ；

R ₁₀₆：3kΩ；

R ₁₀₇：3kΩ；

R ₁₀₈：3kΩ；

R ₁₀₉：3kΩ；

R ₁₁₀：1kΩ；

R ₁₁₁：1kΩ；

R ₁₁₂：1kΩ；

C ₁：30μf；

C ₂：30μf；

C ₃：10μf；

C ₄：10μf；

C ₅：10μf；

R ₂₀₁：30kΩ；

R ₂₀₂：10kΩ；

R ₂₀₃-R ₂₀₉、R ₂₁₁-R ₂₁₇、R ₂₁₉-R ₂₂₅、R ₂₂₇-R ₂₃₃：620Ω；

R ₂₁₀、R ₂₁₈、R ₂₂₆、R ₂₃₄：750Ω；

C ₂₀₁：100μf；

C ₂₀₂：100μf。

Long-distance pipeline substation operation safety early warning device panel synoptic diagram is seen Figure 11.

The main transformer electric power incoming line as shown in figure 12.Internal bridge is adopted in main transformer electric power incoming line high-pressure side, selects two main transformers for use; Two electric power incoming lines are simulated two electric pressures, i.e. 110kV and 35kV respectively; Be provided with power supply monitoring, lightning protection and ground protection.

System and interface specification:

Main transformer electric power incoming line loop disconnector (1101-1,1101-2,1101-3,1102-1,1102-2,1102-3 among Figure 12): be used for isolating power supply, to guarantee the safety inspection of other electric equipment;

Main transformer electric power incoming line circuit breaker (among Figure 12 1101,1102): be used for the break-make supply current, and automatic trip when serious overload and short circuit, cut-out overload current and short-circuit current;

High voltage supply loop wheelbarrow switch (among Figure 14 614 ... 618): have the double action of disconnector and isolating switch concurrently, have the characteristics of flexible operation;

High voltage supply loop disconnector (603-1,603-2 among Figure 13,605-1,605-2 ... 611-1,611-2): be used for the isolated high-voltage bus, to guarantee the safety inspection of other electric equipments;

The high voltage supply circuit breaker (among Figure 13 603,605 ... 611): be used for break-make load circuit electric current, and automatic trip when serious overload and short circuit, the open failure loop;

Low-voltage power supply loop wheelbarrow switch (among Figure 16 041,042,043,044,045,046,049): have the double action of disconnector and isolating switch concurrently, have the characteristics of flexible operation;

Low-voltage power supply building-out capacitor disconnector (among Figure 16 040): be used for blocking capacitor and high-voltage power supply, to guarantee the safety inspection of capacitor;

System's operation reset button (see figure 7): system's operation button and system operation button are used, and press system's operation button and show the running status of current electric substation for the power transformation system; When pressing system operation button and reached for three seconds, all reset for the power transformation system equipment, promptly earthing isolator is connected in the main wiring diagram, and all the other disconnectores and isolating switch all disconnect;

System operation button (see figure 7): press the system operation button system and enter mode of operation, can simulate various grid switching operations this moment by the action button on the imitation screen;

Power supply switching push button (see figure 7): long-distance pipeline substation power supply has two kinds of 220kV and 110kV, is provided with this button in order to reflect the long-distance pipeline substation electric power thus supplied;

System's mute button (see figure 7): can send action button sound and faulty operation sound when system operation, this prompt tone can be closed after pressing mute button;

Output control interface (see figure 7): the I/O end and the button of the various electric control appliances of simulation and the interface of pilot lamp of finishing PLC;

System operation output (see figure 7): output system operating impulse;

System operation sound output (see figure 7): the auditory tone cues during non-noise reduction during system's proper operation;

The system misoperation sound output (see figure 7) of reporting to the police: the auditory tone cues during non-noise reduction during the system mistake operation.

Native system moves according to the control flow of aforesaid operation safety early warning system and operation count and score of the examination flow for displaying.

The control flow of its operation safety early warning system as shown in Figure 3.Control flow is divided into detecting operation button signal and operation count and score of the examination flow for displaying, and detecting operation button signal control flow is: as the detecting operation button signal, through logic determines, as mistake, original state is returned in the warning of then sounding; As correctly, then control respectively and send keypad tone, the indication of disconnector state, the indication of wheelbarrow switch state, circuit-breaker status indication, load and return original state after going out line states indication, the indication of building-out capacitor state by the output control interface;

Its operation count and score of the examination flow for displaying are as shown in Figure 4; Examination initiating key such as invalid then shows all data, and the invalid original state of returning of reset key; If reset key is effective, then total data zero clearing; The examination initiating key is as effectively, a display operation sum then, and when the examination end key is invalid, return a display operation sum again; The examination initiating key then shows all data as effectively and when the examination end key is effective, and if this moment is the invalid original state of returning of reset key; Reset key is effective, then total data zero clearing.

Operating process:

Finish four kinds of fundamental modes that native system has in Figure 11, promptly two transformers are powered respectively; Two transformers power side by side (generally not allowing side by side); Power respectively by two transformers of one road power supply; By transformer-supplied of one road power supply.These three kinds of fundamental modes can be finished 40 binomial grid switching operations when switching mutually.

System operation is divided into two parts, and the one, the switch operation that system puts into operation under back three kinds of basic methods of operation that resets; The 2nd, directly be transformed into the operation of the another kind of method of operation by certain method of operation.

1. the switch operation that system puts into operation under back three kinds of basic methods of operation that resets:

1. open the key switch on the imitation screen;

2. pin the operation button greater than 3 seconds each switch reset;

3. by action button;

4. operate according to the concrete operations step of the following various methods of operation;

5. after operation was finished, by operation button (pilot lamp becomes redness), each switch on the imitation screen can not be operated;

2. the switch operation that system puts into operation under back three kinds of basic methods of operation that resets comprises following seven kinds of modes:

Power respectively by two transformers of two-way power supply;

1AA section electric power incoming line and two transformers are powered respectively;

2AA section electric power incoming line and two transformers are powered respectively;

1AA section electric power incoming line 1# transformer is powered separately;

2AA section electric power incoming line 2# transformer is powered separately;

1AA section electric power incoming line 2# transformer is powered separately;

2AA section electric power incoming line 1# transformer is powered separately.

Long-distance pipeline substation operation safety early warning systemic-function:

1. pumping plant electric substation off-line " five anti-" function, that is:

1. prevent that mistake from jumping, mistake is closed isolating switch;

2. prevent that bringing onto load from closing disconnector;

3. prevent that bringing onto load from drawing disconnector;

4. prevent charged hanging earthing conductor;

5. prevent to be with ground wire to close disconnector; Prevent personnel's mistakenly entering charged chamber function in addition;

These five is the system endurance function, realizes the latch-up protection of substation facilities operation in the system with the PLC simulated mode, and this is the major function of native system training, and when producing maloperation, system sends the false alarm sound; The personnel that prevent mistakenly entering charged chamber function in addition, what field apparatus adopted is physical protection, adopt infrared probe that the personnel that enter charged interval are surveyed in the native system, when personnel enter charged interval, system's alerting signal of sounding is simulated the safeguard function that prevents personnel's mistakenly entering charged chamber with this;

2. simulate electric power substation simulate amount (voltage, electric current etc.) Presentation Function

All show for current supply circuit supply voltage, the interior main transformer parameter of standing, busbar voltage, load current, make the student comprehensive understanding be arranged the equipment operation parameter of whole electric substation by nominal value;

3. the judgement of correcting errors of the grid switching operation under the various complex modes of operations can be sent warning message to faulty operation;

" five is anti-" function of system has determined the working specification of all electric substation's electrical equipments, and running counter to this working specification is that operation institute of electric substation is unallowed, and at this moment, system sends the maloperation audible alarm;

4. system carries out 7 kinds of basic operations, 42 power supply grid switching operations and according to number of outgoing to power supply of each consumer and blocked operation, simultaneously, system configuration 16 secondary high-pressure loads go out line loop and low-voltage load goes out line loop, can carry out the blocked operation of load equipment power supply as required;

5. have proper operation number of times accumulative total and faulty operation number of times accumulating function

The operational counter of system can have been realized proper operation number of times accumulative total and faulty operation number of times accumulating function, and provides the score of the examination according to the accuracy of examination people operation, has overcome the influence of human factor to the score of the examination fully;

6. auxiliary function

1. grid switching operation bill authentication function;

Electric substation's operation is operated according to operation order, the correctness of operation order establishment can be used native system operation order is verified, thereby guarantees the correct of operation order running program, overcome operation steps lack of standardization and wrong in the operation order, play the effect of electric substation's operation safety early warning;

2. management function is simulated in electric substation's operation;

System can be provided with demonstration according to the situation of putting into operation of substation facilities, and the current device running status is come into plain view, and is convenient to the power supply management of electric substation;

3. system state power-failure memory function;

Design of System Software adopts the internal register with power-failure memory function, can the memory system current state after system's power down, and after powering on, system will show and the preceding identical system status information of power down;

4. monitoring electric network frequency function;

System shows current mains frequency with one 4 bit digital gauge outfit, and the monitoring electric network frequency instrument display cycle is 800ms, and display precision mean value in 800ms is 0.01Hz; Its effect is to make the student understand the situation of change of mains frequency;

Function when 5. but displaying calendar, clock, safe operation fate and power down are walked;

For with the electric power substation simulate screen protection at scene hold consistent, system be provided with calendar, clock and safe progression day panel display, wherein calendar, clock have power down function when walking; System stores setting with the safe operation fate of progression, and situation calculates corresponding fate during according to the walking of calendar, clock after time of calendar and the system's power down, be added in the safe operation fate, guaranteeing also can have correct demonstration behind system's power loss recovery.

The beneficial effects of the utility model are that it adapts to each level long-distance pipeline substation operating personnel off-line training The instruction demand, mode of operation and electric substation's on-line operation system's operating mode are identical. This routine function is many, has 42 kinds of grid switching operation programs are in strict accordance with the design of electric substation operational procedure, by to electric substation's operation order Check, can stop various maloperations and operation lack of standardization from operation sequence fully. Operating personnel are at this In the system training just as coming to actual field personally, can carry out flexibly, operation safe and reliable, repeatedly Exercise can therefrom accumulate the operation operations staff to process the experience of various unusual, obstacles and accident, improves behaviour Make technical ability. Simultaneously, native system can realize objective, exactly that Running in Transformer Substation personnel's actual examination reaches Technique Authentication.

Claims

1. long-distance pipeline substation simulation operation safety early warning system is characterized in that it comprises control system and feed circuit two parts:

Control system is made up of PLC control system, rating result singlechip system, operation and indication mechanism; System's operation reset button, system operation button, power supply switching push button, system's mute button, current supply circuit disconnector, current supply circuit wheelbarrow switch, current supply circuit isolating switch, load circuit disconnector, load circuit wheelbarrow switch, load circuit isolating switch, building-out capacitor disconnector all connect the input end of PLC, and the output termination of PLC 4 output control interface and the operation of direct welding system are exported, the system operation sound is exported, the system misoperation sound is reported to the police output; A respectively welding system running status indication, system operating state indication, the power supply of 4 outputs in the control interface switches indication, system's noise reduction state indication; Second connects the indication of current supply circuit disconnector state, the indication of current supply circuit wheelbarrow switch state, the indication of current supply circuit circuit-breaker status respectively; The 3rd connects busbar voltage respectively and shows that control, female busbar voltage that connects show control; The 4th connects load circuit disconnector state indication, the indication of load circuit wheelbarrow switch state, the indication of load circuit circuit-breaker status, load circuit respectively and goes out line states indication, the indication of load circuit building-out capacitor state, load circuit nominal current and show control; The 5th connects the main transformer electric pressure respectively and shows that control, current supply circuit electric pressure show control; The output terminal of PLC also is connected to rating result singlechip system, and it is that the output of score of the examination counter connects number of operations and achievement display;

Feed circuit partly comprise main transformer electric power incoming line, high pressure and low pressure three parts:

Internal bridge is adopted in main transformer electric power incoming line high-pressure side, selects two main transformers for use; Two electric power incoming lines are simulated two electric pressures, i.e. 110kV and 35kV respectively; Be provided with power supply monitoring, lightning protection and ground protection;

The high voltage supply wiring is divided into two sections, connects I section PT and Duo Tai pump motor from the 1# inlet wire of 1# main transformer; 2# inlet wire from the 2# main transformer connects II section PT, standby, stand change and many pump motors; Connect by the bus communication between 1# inlet wire and the 2# inlet wire;

Low-voltage power supply adopts single-trunk segmental wiring, and electric pressure is 6kV; Load has illumination, power cabinet, instrument, direct current cabinet, communication.

2. long-distance pipeline substation simulation operation safety early warning according to claim 1 system, it is characterized in that described rating result singlechip system is: operation push-button connects the input of single-chip microcomputer PCU; There is the counting gating circuit of count pulse input to be arranged being connected of output and input with single-chip microcomputer PCU; The road output of single-chip microcomputer PCU connects hummer, the second tunnel output connects status displays after connecing state indication controlling and driving again, Third Road output after level translation respectively to the input of four proper operation number of times display interfaces, the four tunnel output after showing control and level translation respectively to the control end of four proper operation number of times display interfaces; Four proper operation number of times display interfaces show through demonstration decoding scheme decoding shown in Figure 17;

Operation count and performance rating circuit receive operation signal pulse OP-IN and the faulty operation signal pulse ERR-IN that PLC sends here, through be the operation count of core and performance rating circuit computing with the single-chip microcomputer, handle after, output proper operation number of times, faulty operation number of times, operation sum and score of the examination mark show proper operation number of times, faulty operation number of times, operation sum and score of the examination mark after showing decoding scheme decoding.

3. long-distance pipeline substation simulation operation safety early warning according to claim 1 system is characterized in that described operation count and performance rating electricity principle is: operation push-button S ₁, S ₂, S ₃Meet single-chip microcomputer U respectively ₁₀₁P end, and meet RP respectively ₁Capacitor C ₁, C ₂One end ground connection, the other end meet output terminal EA/VP, the X that is connected to PCU behind the hummer CR1I2M respectively ₁Output terminal (the P of PCU ₀₀-P ₀₇) respectively through U _104A, U _104B, U _104C, U _104D, U _104E, U _104F, U _105A, U _105BHold to (1-8) end of connector RIGHT, TOTAL, ERROR, ANWSER and (9-16); Output terminal (the P of PCU ₂₀-P ₂₃) meet U respectively ₁₀₃Input end (A, B, C, E ₁, E ₂), U ₁₀₃Output terminal (Y ₀-Y ₇) respectively through U _105C, U _105DBe connected to (17,18) end of connector RIGHT, TOTAL, ERROR, ANWSER; U ₁Output terminal (P ₂₄, P ₂₅, P ₂₆, P ₂₇) meet control Driver Circuit Q respectively ₁₀₁, Q ₁₀₂, Q ₁₀₃, Q ₁₀₄Input end, these 4 control Driver Circuit are the triode amplifier of collector connecting relay;

Operation count and performance rating display electricity principle are: it is by U ₂₀₁-U ₂₀₄Four decoder drivers 4511 and 8 LED form; (1-4) termination U by 40 core connector SET ₂₀₁(A, B, C, D) end, (5-8) termination U ₂₀₂(A, B, C, D) end, (9-12) termination U ₂₀₃(A, B, C, D) end, (13-16) termination U ₂₀₄(A, B, C, D) end, (37) termination U of connector SET ₂₀₁And U ₂₀₂(LE) end, (39) termination U of connector SET ₂₀₃And U ₂₀₄(LE) end; Each output terminal of 4511 (A, B, C, D, E, F, G) respectively connects a resistance and receives each LED successively; U wherein ₂₀₁Output terminal (A, B, C, D, E, F, G) respectively connect a resistance and meet LED1.1.5 and LED1.6.10 successively; U ₂₀₂Output terminal (A, B, C, D, E, F, G) respectively connect a resistance and meet LED2.1.5 and LED2.6.10 successively; U ₂₀₃Output terminal (A, B, C, D, E, F, G) respectively connect a resistance and meet LED3.1.5 and LED3.6.10 successively; U ₂₀₄Output terminal (A, B, C, D, E, F, G) respectively connect a resistance and meet LED4.1.5 and LED4.6.10 successively;

U _102A, U _102BAs the control gate of input signal, the resistance R of its front ₁₀₂-R ₁₀₅Finish the level conversion of the pulse signal that PLC sends here; U ₁₀₁Single-chip microcomputer is mainly finished computing and signal Processing; Code translator U ₁₀₃The gating signal of decoding output display decoder, the demonstration position of control decoding output; Impact damper U ₁₀₄(A, B, C, D, E, F), U ₁₀₅(A, B, C, D, E, F), U ₁₀₆(A, B, C, D) is complementary the signal of single-chip microcomputer output and the level that shows decoding scheme level translation; Operation push-button S ₁, S ₂, S ₃Be respectively examination beginning, score of the examination demonstration and score of the examination reset key, examination begins counting, shows the zero clearing of the score of the examination display when score of the examination and next examination process begin when examination finishes; Decoder driver decoding and driving LED.