CN205811520U - The open phase protection that multiple redundancy Intelligent live amount shows - Google Patents
The open phase protection that multiple redundancy Intelligent live amount shows Download PDFInfo
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- CN205811520U CN205811520U CN201620534410.9U CN201620534410U CN205811520U CN 205811520 U CN205811520 U CN 205811520U CN 201620534410 U CN201620534410 U CN 201620534410U CN 205811520 U CN205811520 U CN 205811520U
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Abstract
The open phase protection that a kind of multiple redundancy Intelligent live amount shows; including phase failure protector and protective relay; phase failure protector includes that comprehensive unit and two overlaps working cell separate, that structure is identical, and comprehensive unit and two overlaps and carries out information exchange by two machine communication between working cells；Working cell includes: current sample module, processor module, dynamic driving module, voltage detection module and power module；Comprehensive unit includes: comprehensive treatment device module, communication module, display module and comprehensive power module；Described control method includes: starts, determines main control computer and hot standby machine, and main control computer is controlled work: be acquired current signal, Treatment Analysis and logical judgment；Output or stopping output driving power supply；According to the testing result of driving supply voltage, be made whether the decision of switch operating unit；This open phase protection reliability is high, can be that accident analysis provides according to and shows in real time, reports to the police, its control method science, rigorous, safety.
Description
Technical field
This utility model relates to a kind of circuit protection device, is applicable to rail track AC electrical turn-out track particularly to one
The open phase protection that the multiple redundancy Intelligent live amount of machine shows.
Background technology
Rail track changes the operating path of train by track switch, and the equipment changing switch location is referred to as goat；According to
The difference of action power, is divided into DC electric switch machine and AC electrical interpreter；A.C. point machine uses three-phase electric
Machine, when three phase mains breaks phase time, and the electric current of another two-phase increases sharply, causes threephase motor winding too high and burnt due to temperature rise
Ruin, therefore in A.C. point machine track switch actuating circuit, be provided with phase failure protector, when there is disconnected phase time, by protection
Relay cuts off the action power of goat in time, to protect threephase motor to exempt from damage (seeing accompanying drawing 1, accompanying drawing 2).
At present, distinguishing technically, the phase failure protector that railway uses mainly has two big classes:
One is to use three current transformers, three transformer secondary series connection, and its three voltages, after vector superposed, produce
One voltage, directly drives after rectified filtering and makes protective relay BHJ pick up；
Two is to use a mains transformer to provide drive circuit works power supply, three current transformers to provide logic circuit
Working power, the series connection of three secondary transformer, when three-phase current is normal, its secondary voltage, after vector superposed, produces
A raw voltage, the backward power logic circuitry of rectified filtering so that it is work, produced pulse makes dynamically (or non-dynamic) to drive
Galvanic electricity road works, and makes protective relay BHJ pick up.
The phase failure protector of above-mentioned two big classes exists following not enough:
1. reliability is low, cannot normally work when a certain device fault, directly contributes track switch and cannot complete conversion, causes
Travelling facility fault, impact driving efficiency, even causes railways train operation to paralyse；
2. do not have electricity to show, intuitively, the most effectively safeguard preventive means；
The most it is not provided that accident analysis foundation.
Utility model content
The purpose of this utility model is the open phase protection providing a kind of multiple redundancy Intelligent live amount to show, with gram
Take the deficiency that above-mentioned prior art exists.
This utility model adopts the technical scheme that: the open phase protection that a kind of multiple redundancy Intelligent live amount shows,
Including phase failure protector and the protective relay that is connected with its circuit, the contact switch of protective relay and controlled alternating current
The threephase motor circuit of dynamic goat connects；
Described phase failure protector includes that comprehensive unit and two overlaps working cell separate, that structure is identical, comprehensively single
Information exchange is carried out by two machine communication between unit and two set working cells and between two set working cells；
Described working cell includes: current sample module, processor module, dynamic driving module, voltage detection module and
Power module；Described current sample module, processor module and dynamic driving module circuit successively connect, dynamic driving module
Control end and connect protective relay；
Described power module is connected with processor module and dynamic driving module respectively and provides DC supply for it；
Described its collection terminal of current sample module is electrically connected with the transmission line of three-phase current, its outfan and processor die
Block connects, and current sample module is for gathering and process the current signal of three phase mains and result being passed to processor module；
The effect of described processor module:
One is to be analyzed by the three phase mains current signal through current sample resume module, when meeting drive condition, defeated
Go out dutycycle be 1% ~ 99%, frequency be that pulse signal to the dynamic driving module of 1.5KHz ~ 2.5KHz makes it export driving power supply,
When meeting disconnected phase condition, stop output pulse signal, make dynamic driving module stop output and drive power supply；
Two is the sampled result receiving and judging voltage detection module, will be driven by the dutycycle and frequency changing pulse
Within supply voltage is locked in 24V ± 2V, as then made switch operating unit when driving supply voltage to lock and be less than 18V
Decision；
The effect of described dynamic driving module is the control signal according to processor module, exports or stops output driving electricity
Source is to control picking up or falling of protective relay:
When output drives power supply, protective relay picks up the working power connecting goat, when stopping output driving power supply,
Protective relay falls the working power cutting off goat；
Its collection terminal of described voltage detection module is connected with dynamic driving module, and its outfan is connected with processor module,
The effect of voltage detection module is the voltage driving power supply of detection dynamic driving module output, and testing result is passed back to place
Reason device module；
Described comprehensive unit includes: comprehensive treatment device module, communication module, display module and comprehensive power module；
Described communication module and display module output port with comprehensive treatment device module respectively is connected, comprehensive treatment device mould
Block is electrically connected with two processor modules overlapping working cells and carries out information exchange by two machine communication respectively；
The effect of described comprehensive treatment device module:
One is to carry out two machine communication with two set working cells, receives the operation information of two set working cells；
Two is to send electric quantity data and status data by communication module to host computer；
Three is to receive the control command of host computer by communication module or receive artificial Two-channel switching operational order；
Communication module has been used for open phase protection and the data of host computer that this multiple redundancy Intelligent live amount shows
Exchange；
Display module shows three-phase current, driving voltage, warning message and duty in real time；
Comprehensive power module provides DC supply for comprehensive treatment device module.
Its further technical scheme is: described current sample module includes current sensor and signal processor, electric current
The transmission line electrical connection of sensor acquisition end and three-phase current, its outfan is connected with signal processor, signal processor and
Processor module connects；Signal processor flows to processor die after the current signal collected by current sensor processes
Block.
Further: described dynamic driving module include the 1st electrochemical capacitor, the 2nd electrochemical capacitor, the 3rd electrochemical capacitor, the 1st
Resistance, the 2nd resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 10th electricity
Resistance, the 1st diode, the 2nd diode, the 1st audion, the 2nd audion, the 3rd audion, the 4th audion；
Described 1st resistance and the 2nd resistance series winding, its public termination the 3rd resistance, another termination working power of the 1st resistance
Positive pole and the colelctor electrode of the 3rd audion, the other end ground connection of the 2nd resistance, the current collection of another termination the 1st audion of the 3rd resistance
Pole and the base stage of the 2nd audion, the grounded emitter of the 1st audion, base stage connect the 4th resistance and the common port of the 5th resistance, and the 5th
Resistance other end ground connection, the pulse DT of another termination processor module port conveying of the 4th resistance；
The grounded emitter of the 2nd audion, colelctor electrode connect the 3rd audion and the base stage of the 4th audion, the 3rd audion collection
Electrode and indirect 6th resistance of base stage, the grounded collector of the 4th audion, the emitter stage of the 3rd audion and the 4th audion connects
1st electrochemical capacitor positive terminal, the forward end of the 1st electrochemical capacitor negative pole termination the 1st diode and the backward end of the 2nd diode, the 1st
The backward end ground connection of diode；
The forward of the 2nd diode terminates the 8th resistance and the common port of the 10th resistance and the 2nd electrochemical capacitor negative pole, the 2nd electricity
Solve ground connection after capacitance cathode ground connection, the 8th resistance other end and the 9th resistance series winding, the 8th resistance and the public termination the 3rd of the 9th resistance
Electrochemical capacitor positive pole and the common port of the 7th resistance, the 3rd electric capacity minus earth, the other end of the 7th resistance and the A/ of processor module
D port connects；
Protective relay is attempted by between terminals P and terminal Q, and terminals P connects the other end of the 10th resistance, terminal Q ground connection；
The effect of described 1st diode D1 is the stifled stream when the 1st electrochemical capacitor C1 electric discharge, makes discharge current depend on following approach
Flowing: collector terminal Q protective relay terminals P the 10th electricity of emitter stage the 4th audion of the 4th audion
Hinder the 2nd diode the 1st electrochemical capacitor negative pole；
The effect of described 2nd diode D2 is to prevent current direction binding post P when the 1st electrochemical capacitor C1 charging；
The effect of described 2nd electrochemical capacitor C2 is to load discharge when the 1st electrochemical capacitor C1 charging, plays smooth work
With；
When the effect of described 10th resistance is to prevent external short circuit, protection dynamic driving module device does not damages.
Further: the comprehensive power module of described comprehensive unit overlaps the power module of working cells respectively by limit with two
Leakage resistance and diode are attached, and the effect of current-limiting resistance does not affect two set works when being to ensure that comprehensive power module short circuit fault
Making the normal power supply of the power module of unit, the effect of diode is to ensure that the power supply not phase of the power module of two set working cells
Impact mutually.
Further: the comprehensive treatment device module of described comprehensive unit connect have provide for outside portion alarm switch amount and
The alarm module of audible alarm.
Further: the open phase protection that described multiple redundancy Intelligent live amount shows and PERCOM peripheral communication or employing
RS485 agreement or employing switching value are reported to the police or employing wireless mode:
When using RS485 agreement: phase failure protector built-in RS485 communication chip, outside employing bus connects, open-phase protection
Device is articulated in bus, is set up and the contacting of phase failure protector by host computer method of calling；Traffic rate is 9600bit/S,
Number of units n≤256 of the phase failure protector of mounting；
When using switching value to report to the police: phase failure protector built-in polarity guard relay, pick up during fault and keep, by continuing
Electrical equipment contact is reported to the police, and reports to the police and uses bus mode；
When using wireless mode: one radio alarming exchange of peripheral hardware, between phase failure protector and radio alarming exchange, pass through nothing
Line communicates, and uses exchange call answering mode, carries out data transmission after setting up contact, and described radio alarming exchange uses
RF433。
Owing to taking technique scheme, the open phase protection that the multiple redundancy Intelligent live amount of this utility model shows
Have the advantages that
1. the open phase protection shown due to the multiple redundancy Intelligent live amount of this utility model uses completely self-contained
Resource-sharing is overlapped in two set working cells and realization pair, breaks down in any of which set working cell, or the while of two set working cells
Different faults occurs, does not the most affect properly functioning, thus it is low to solve railway signal phase failure protector unit functional reliability
Problem, it is to avoid " track switch cannot complete conversion, causes driving faults, impact driving efficiency, even causes railways train operation to paralyse "
Accident occurs；
2. the open phase protection shown due to the multiple redundancy Intelligent live amount of this utility model can provide electricity and work
Make the display in real time of state, report to the police and realize networking by wired or wireless mode, can be that railroad maintenance personnel provide fault to divide
Analysis foundation and effective maintenance service, it is achieved railway signals equipment " status maintenance " (sees the explanation of attached noun), beneficially maximum limit
Degree reduces signalling arrangement fault, it is ensured that traffic safety；
3. the comprehensive power module of this utility model comprehensive unit is respectively by current-limiting resistance and diode and two set work
The power module of unit connects, and on the one hand can ensure that the normal power supply of the comprehensive treatment device module of comprehensive unit, on the other hand works as
During comprehensive power module failure, do not interfere with the normal power supply of two set working cells；
4. the multiple redundancy Intelligent live amount of this utility model shows open phase protection low cost, reduced investment, its control
Methodological science processed, rigorous, it can be ensured that open-phase protection is safe and reliable.
The open-phase protection dress with embodiment, the multiple redundancy Intelligent live amount of this utility model shown below in conjunction with the accompanying drawings
The technical characteristic put is further described.
Accompanying drawing explanation
Fig. 1: existing railway signal track switch open phase protection structured flowchart；
Fig. 2: existing railway signal track switch open phase protection control circuit figure；
The open phase protection structured flowchart that the multiple redundancy Intelligent live amount of Fig. 3: this utility model shows；
The dynamic driving module circuit diagram of Fig. 4: this utility model；
Fig. 5: the open phase protection main program flow chart (unit workflow) that multiple redundancy Intelligent live amount shows；
Fig. 6: the open phase protection hardware redundancy that multiple redundancy Intelligent live amount shows processes software flow pattern；
Fig. 7～Fig. 9: the open phase protection that multiple redundancy Intelligent live amount shows and PERCOM peripheral communication block diagram:
Fig. 7 is for using RS485 agreement connection diagram, and Fig. 8 is switching value warning connection diagram, and Fig. 9 is wireless mode
Connection diagram；
In Fig. 1, Fig. 2:
I-phase failure protector, II-A.C. point machine, 21 threephase motors, 22 power conversion and contact groups,
BHJ protective relay, 1DQJ the first positioning action relay, 1DQJF the first positioning action repeater relay,
2DQJ the second positioning action relay, 2DQJF the second positioning action repeater relay, DCA button, FCA button,
KZ controls positive electricity (positive source), and KF controls negative electricity (ground connection)；
In Fig. 3:
00 comprehensive unit, 01 comprehensive power module, 02 comprehensive treatment device module, 03 communication module, 04 shows
Show module, 05 alarm module；
1 A working cell, 2 B working cells, 101/201 current sample module, 102/202 processor module,
103/203 dynamic driving module, 104/204 voltage measurement module, 105/205 power module, BHJ protects relay
Device；
In Fig. 4:
C1 the 1st electrochemical capacitor, C2 the 2nd electrochemical capacitor, C3 the 3rd electrochemical capacitor, R1 the 1st resistance, R2 the 2nd electricity
Resistance, R3 the 3rd resistance, R4 the 4th resistance, R5 the 5th resistance, R6 the 6th resistance, R7 the 7th resistance, R8 the 8th resistance,
R9 the 9th resistance, R10 the 10th resistance, D1 the 1st diode, D2 the 2nd diode, UA1 the 1st audion, UA2 the 2nd
Audion, UA3 the 3rd audion, UA4 the 4th audion, BHJ protective relay, DT pulse signal；
In Fig. 7, Fig. 8, Fig. 9:
Ⅰ1、Ⅰ2……Ⅰn-phase failure protector,
Detailed description of the invention,
As shown in Figure 3, the open phase protection that a kind of multiple redundancy Intelligent live amount shows, including phase failure protector with
And the protective relay BHJ being connected with its circuit, the contact switch of protective relay and the three of controlled A.C. point machine
Phase motor 21 circuit connects；Described phase failure protector includes that comprehensive unit 00 overlaps work separate, that structure is identical with two
Make unit, i.e. working cell 2, A working cell 1 and B, between comprehensive unit and two set working cells and two set working cells it
Between carry out information exchange by two machine communication；
Described working cell includes: current sample module, processor module, dynamic driving module, voltage detection module and
Power module；Described current sample module, processor module and dynamic driving module circuit successively connect, dynamic driving module
Control end and connect protective relay BHJ；
Described power module is connected with processor module and dynamic driving module respectively and provides DC supply for it；
Described its collection terminal of current sample module is electrically connected with the transmission line of three-phase current, its outfan and processor die
Block connects, and current sample module is for gathering and process the current signal of three phase mains and result being passed to processor module；
The effect of described processor module:
One is to be analyzed by the three phase mains current signal through current sample resume module, when meeting drive condition, defeated
Go out dutycycle be 1% ~ 99%, frequency be that pulse signal to the dynamic driving module of 1.5KHz ~ 2.5KHz makes it export driving power supply,
When meeting disconnected phase condition, stop output pulse signal, make dynamic driving module stop output and drive power supply；
Two is the sampled result receiving and judging voltage detection module, will be driven by the dutycycle and frequency changing pulse
Within supply voltage is locked in 24V ± 2V, as then made switch operating unit when driving supply voltage to lock and be less than 18V
Decision；
The effect of described dynamic driving module is the control signal according to processor module, exports or stops output driving electricity
Source is to control picking up or falling of protective relay:
When output drives power supply, protective relay picks up the working power connecting goat, when stopping output driving power supply,
Protective relay falls the working power cutting off goat；
Its collection terminal of described voltage detection module is connected with dynamic driving module, and its outfan is connected with processor module,
The effect of voltage detection module is the voltage driving power supply of detection dynamic driving module output, and testing result is passed back to place
Reason device module；
Described comprehensive unit 00 includes: comprehensive treatment device module 02, communication module 03, display module 04 and comprehensive power mould
Block 01；
Described communication module and display module output port with comprehensive treatment device module respectively is connected, comprehensive treatment device mould
Block is electrically connected with two processor modules overlapping working cells and carries out information exchange by two machine communication respectively；
The effect of described comprehensive treatment device module:
One is to carry out two machine communication with two set working cells, receives the operation information of two set working cells；
Two is to send electric quantity data and status data by communication module to host computer；
Three is to receive the control command of host computer by communication module or receive artificial Two-channel switching operational order；
Communication module has been used for open phase protection and the data of host computer that this multiple redundancy Intelligent live amount shows
Exchange；
Display module shows three-phase current, driving voltage, warning message and duty in real time；
Comprehensive power module provides DC supply for comprehensive treatment device module.
Described current sample module includes current sensor and signal processor, current sensor collection terminal and three-phase current
Transmission line electrical connection, its outfan is connected with signal processor, and signal processor is connected with processor module；Signal processing
Device flows to processor module after the current signal collected by current sensor processes.
Described dynamic driving module (Shenfu Fig. 4) include the 1st electrochemical capacitor, the 2nd electrochemical capacitor, the 3rd electrochemical capacitor, the 1st
Resistance, the 2nd resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 10th electricity
Resistance, the 1st diode, the 2nd diode, the 1st audion, the 2nd audion, the 3rd audion, the 4th audion；
Described 1st resistance and the 2nd resistance series winding, its public termination the 3rd resistance, another termination working power of the 1st resistance
Positive pole and the colelctor electrode of the 3rd audion, the other end ground connection of the 2nd resistance, the current collection of another termination the 1st audion of the 3rd resistance
Pole and the base stage of the 2nd audion, the grounded emitter of the 1st audion, base stage connect the 4th resistance and the common port of the 5th resistance, and the 5th
Resistance other end ground connection, the pulse DT of another termination processor module port conveying of the 4th resistance；
The grounded emitter of the 2nd audion, colelctor electrode connect the 3rd audion and the base stage of the 4th audion, the 3rd audion collection
Electrode and indirect 6th resistance of base stage, the grounded collector of the 4th audion, the emitter stage of the 3rd audion and the 4th audion connects
1st electrochemical capacitor positive terminal, the forward end of the 1st electrochemical capacitor negative pole termination the 1st diode and the backward end of the 2nd diode, the 1st
The backward end ground connection of diode；
The forward of the 2nd diode terminates the 8th resistance and the common port of the 10th resistance and the 2nd electrochemical capacitor negative pole, the 2nd electricity
Solve ground connection after capacitance cathode ground connection, the 8th resistance other end and the 9th resistance series winding, the 8th resistance and the public termination the 3rd of the 9th resistance
Electrochemical capacitor positive pole and the common port of the 7th resistance, the 3rd electric capacity minus earth, the other end of the 7th resistance and the A/ of processor module
D port connects；
Protective relay is attempted by between terminals P and terminal Q, and terminals P connects the other end of the 10th resistance, terminal Q ground connection；
The effect of described 1st diode D1 is the stifled stream when the 1st electrochemical capacitor C1 electric discharge, makes discharge current depend on following approach
Flowing: collector terminal Q protective relay terminals P the 10th electricity of emitter stage the 4th audion of the 4th audion
Hinder the 2nd diode the 1st electrochemical capacitor negative pole；
The effect of described 2nd diode D2 is to prevent current direction binding post P when the 1st electrochemical capacitor C1 charging；
The effect of described 2nd electrochemical capacitor C2 is to load discharge when the 1st electrochemical capacitor C1 charging, plays smooth work
With；
When the effect of described 10th resistance is to prevent external short circuit, protection dynamic driving module device does not damages.
In above-mentioned dynamic driving module: described 1st electrochemical capacitor, the 2nd electrochemical capacitor and the 3rd electrochemical capacitor also can use
Common polarity free capacitor substitutes.
The comprehensive power module 01 of described comprehensive unit 00 is respectively by current-limiting resistance and diode and two set working cells
Power module connect, the effect of current-limiting resistance do not affect when being to ensure that comprehensive power module short circuit fault two set working cells it
The normal power supply of power module, the effect of diode is to ensure that the power supply of the power module of two set working cells does not influences each other.
The comprehensive treatment device module 01 of described comprehensive unit 00 connects to have provides alarm switch amount and sound for outside portion
The alarm module 05 reported to the police.
The open phase protection that described multiple redundancy Intelligent live amount shows and PERCOM peripheral communication or use RS485 agreement or
Use switching value to report to the police or use wireless mode:
When using RS485 agreement: phase failure protector built-in RS485 communication chip, outside employing bus connects, should in reality
In with, the n platform phase failure protector of the open phase protection often the n platform multiple redundancy Intelligent live amount entirely stood shown is whole
It is articulated in bus, is set up and the contacting of phase failure protector by host computer method of calling；Traffic rate is 9600bit/S, disconnected
Number of units n of phase protector≤256(sees accompanying drawing 7)；
When using switching value to report to the police: the built-in polar stick relay of phase failure protector, pick up during fault and keep, passing through
Relay tip is reported to the police, and reports to the police and uses bus mode (seeing accompanying drawing 8)；
When using wireless mode: one radio alarming exchange of peripheral hardware, between phase failure protector and radio alarming exchange, pass through nothing
Line communicates, and uses exchange call answering mode, carries out data transmission after setting up contact, and described radio alarming exchange uses
RF433(sees accompanying drawing 9).
Note
(1) noun explanation
1. dynamic driving: one has input pulse signal (certain frequency and the pulse signal of dutycycle) and could export directly
Stream driving voltage, when the frequency of input signal or dutycycle, can not to export driving when exceeding certain limit or circuit devcie fault straight
A kind of circuit structure of stream voltage.It it is the method for controlling security of a kind of electronic building brick；
2. two-node cluster hot backup: two sets can complete the autonomous system of predetermined function, by the way of certain (two-shipper monitoring etc.) build
Vertical contact, the most properly functioning a set of referred to as main control computer, the another set of resting state that is in is referred to as hot standby machine；When working machine fault
Time, hot standby machine automatically engages work, and ensures the steady operation of whole system during putting into；
3. resource-sharing: the resource of a system, in addition to itself uses, also serves as the standby money of another system simultaneously
Source；
4. signal fault security doctrine: when signalling arrangement or equipment fault, can only make output (railway in a safe condition
The safe condition of signal is without electricity, display red light etc.)；
5. current sampling data is legal: normalized current is legal less than 5A, is illegal more than 5A；
6. fault is repaiied and status maintenance: the maintenance mode of railway signals equipment is broadly divided into two kinds: (1) when equipment performance
In time causing equipment can not complete its function, the maintenance referred to as fault (during fault) is repaiied, i.e. just maintenance during equipment fault；(2) set
Standby penalty but maintenance when having remained to its function is referred to as status maintenance, i.e. keep in repair according to equipment working state；Real
The basic condition that present condition is repaiied is: utilization performance monitoring or the equipment double set redundancy to equipment；
7. meet drive condition: three-phase current is all higher than 0.6A；
8. meeting disconnected phase condition: a phase current is less than 0.1mA, another two-phase current is more than or equal to 1A.
(2) existing railway signal track switch open phase protection control principle (control process) (seeing Fig. 1 Fig. 2):
1., when need to change track switch, after pressing FCA, make track switch change:
Push button the 1-2 coil → the second positioning action relay of FCA:KZ → the first positioning action relay 1DQJ
2DQJ contact 141,142 → KF, make the first positioning action relay 1DQJ pick up → the first positioning action repeater relay 1DQJF
Pick up → the second positioning action relay 2DQJ turns 1-2 coil power → the of pole → cut off the first positioning action relay 1DQJ
Without electricity, (the first positioning action relay puts type relay for slow to one positioning action relay 1DQJ, can make relay without electricity after picking up
Device keeps picking up 0.5 second), meanwhile, the first positioning action relay 1DQJ, the first positioning action repeater relay 1DQJF
Contact three phase mains, make motor rotation → open phase protection output dynamic driving power supply make BHJ pick up, thus connect
Logical first positioning action relay 1DQJ3-4 coil, make the first positioning action relay keep picking up → after track switch conversion puts in place,
Electric point machine interior contacts cut off three phase mains → open phase protection stop output dynamic driving power supply make BHJ fall →
BHJ contact cuts off the first positioning action relay 1DQJ3-4 coil so that it is fall → the first positioning action repeater relay
1DQJF falls, and now, the control of track switch transformation process terminates；
2. when disconnected phase time occurs:
Break phase → open phase protection of any phase stops output dynamic driving power supply → BHJ and falls → cut off the first location
Operational relay 1DQJ3-4 coil → the first positioning action relay 1DQJ and the first positioning action repeater relay 1DQJF falls
Under → cut off another 2 phase power supplys (electric motor circuit breaking).
(3) the open phase protection operation principle that the multiple redundancy Intelligent live amount of this utility model shows (sees accompanying drawing
3)
1. three-phase current passes respectively from the current sensor of current sample module, the signal that current sensor will gather
Transport to signal processor；
2. signal processor by current signal amplification, shaping, filtering, spacing after, deliver to processor module；
3. processor module carries out A/D conversion and computing, when three-phase current is more than 0.6A, and processor module output output
The pulse signal that dutycycle is 1% ~ 99%, frequency is 1.5KHz ~ 2.5KHz exports straight to dynamic driving module, dynamic driving module
Stream drives power supply；
4. the voltage of direct current driving power supply is detected by voltage detection module, and by testing result loopback processor die
Block, determines whether to carry out Voltage Cortrol or machine (two-shipper conversion) by computing, such as driving voltage normal (within 24V ± 2V) then
Working on, as abnormal in driving voltage (less than 18V) is upgraded to main control computer by hot standby machine and works on；
5. when occurring a certain phase to break phase, stoppings is exported pulse by processor module, makes dynamic driver circuit stop output directly
Stream drives power supply, and BHJ falls, and cuts off three phase mains by original switch control circuit.
(4) the open phase protection main program flow (Fig. 5) that multiple redundancy Intelligent live amount shows
Two set working cells use identical software.After starting and having initialized, operation monitoring program is to determine three machines
Duty be master control or standby, guest machine enters resting state and runs, and main control computer is controlled work.Measure three-phase electricity
Stream, as three-phase current is respectively less than 0.6A, returns, such as larger than 0.6A then dynamic driving, until disconnected phase occurring, prescribing a time limit and normally move back
Go out (electric point machine conversion puts in place and cuts off three phase mains) condition, exit dynamic driving, return.
(5) the open phase protection hardware redundancy that multiple redundancy Intelligent live amount shows processes software flow (Fig. 6)
After " three-phase current sampling " in main program flow, add the process of hardware redundancy, first judge current sample number
According to the most legal (in three-phase current, arbitrary phase current is illegal more than 5A), data are legal, jump out present treatment program, continue；No
Time legal, reading the other side's current data, as the other side is legal, the machine uses this data, as the most illegal, then reports machine failure.
(6) dynamic driving module principle figure (Fig. 4)
The input signal of dynamic driving module is necessarily the pulse signal of certain dutycycle and frequency, could export direct current and drive
Galvanic electricity source.When the input signal of dynamic driving module is not pulse or device fault, load will not be given by mistake out-put supply.
Work process:
During 1.DT pulse signal high level, the 1st audion UA1 conducting；The colelctor electrode of test point A(that is the 1st audion UA1)
Low level, the 2nd audion UA2 cut-off；Test point B point (colelctor electrode of the i.e. the 2nd audion UA2) high level, the 4th audion UA4
Cut-off, the 3rd audion UA3 conducting, KZ charges to the 1st electrochemical capacitor C1:
KZ → the 3rd audion UA3 colelctor electrode → the 3rd audion UA3 emitter stage → the 1st electrochemical capacitor C1 positive pole → 1st electricity
Solve electric capacity C1 negative pole-→ the 1st diode D1 anode → the 1st diode D1 negative terminal → ground；
During 2.DT pulse signal low level, the 1st audion UA1 cut-off；Test point A high level, the 2nd audion UA2 conducting；
Test point B low level, the 3rd audion UA3 cut-off, the 4th audion UA4 conducting, electric capacity C1 is discharged by the 4th audion UA4:
1st electrochemical capacitor C1 positive pole → the 4th audion UA4 emitter stage → the 4th audion UA4 colelctor electrode → binding post 2
(→ protective relay BHJ coil 1 → protective relay BHJ coil 4) → binding post the 1 → the 10th resistance R10 → the 2nd diode
D2 anode → the 2nd diode D2 negative terminal → the 1st electrochemical capacitor C1 negative pole；
Repeat above-mentioned charge and discharge process, thus export direct current driving power supply.
From above procedure: even if dynamic driving module during arbitrary device fault, can only cause can not without output
Can mistake export, it is achieved failure to safety principle:
(1) due to fault, input always high level time: the 1st electrochemical capacitor C1 only has charging process not have discharge process,
Dynamic driving module is without output；
(2) due to fault, input always low level time: the 1st electrochemical capacitor C1 only has discharge process not have charging process,
Dynamic driving module is without output；
The effect of related elements in Fig. 6:
The effect of the 1st diode D1 is stifled stream when being the 1st electrochemical capacitor C1 electric discharge, makes the 1st electrochemical capacitor C1 discharge current only
The negative pole of the 1st electrochemical capacitor C1 can be back to after binding post 2, BHJ coil, binding post 1.The effect of the 2nd diode D2 is
Current direction binding post 1 is prevented during the 1st electrochemical capacitor C1 charging；
The effect of the 2nd electrochemical capacitor C2 is to load discharge (smoothing) when the 1st electrochemical capacitor C1 charging；
When the effect of the 10th resistance is to prevent external short circuit, protection dynamic driving module device does not damages.
(7) Two-channel switching principle
1. when two-shipper is normal (main control computer and the equal fault-free of hot standby machine),
Main control computer and hot standby machine pass through two machine communication, it is achieved data exchange；
When hot standby machine examination measure main control computer working properly time:
(1) main control computer complete independently: current sample, signal processing, logical judgment, output dynamic driving power supply and comprehensive
Unit carries out data communication；
(2) comprehensive unit completes: three-phase current, driving voltage and duty show；Receive host computer order and complete
Communication with host computer；
(3) hot standby machine synchronously completes: current sample, signal processing, logical judgment, but does not export dynamic driving power supply, no
Data communication is carried out with comprehensive unit；
2. when hot standby machine examination measure with the communication disruption of main control computer after, it is judged that main control computer fault, main control computer can not normal work
(such as power module failure, processing module fault, processor reset fault etc.) when making,
(1) hot standby machine automatically engages and upgrades to main control computer, has continued: current sample, signal processing, logical judgment, defeated
Go out dynamic driving power supply and comprehensive unit carries out data communication；
(2) comprehensive unit completes: three-phase current, driving voltage and duty show；Receive host computer order and complete
Communication with host computer；
3. when two-shipper all breaks down (Equations of The Second Kind, the 3rd class or the 4th class fault), as two-shipper normal resource can be integrated
When becoming a set of effective, legal resource, by the working cell finally broken down, two-shipper resource is integrated, continue work
Make.
Claims (6)
1. the open phase protection that multiple redundancy Intelligent live amount shows, is connected including phase failure protector and with its circuit
Protective relay, the contact switch of protective relay is connected with the threephase motor circuit of controlled A.C. point machine；
It is characterized in that: described phase failure protector includes that comprehensive unit and two overlaps working cell separate, that structure is identical,
Information exchange is carried out by two machine communication between comprehensive unit and two set working cells and between two set working cells；
Described working cell includes: current sample module, processor module, dynamic driving module, voltage detection module and power supply
Module；Described current sample module, processor module and dynamic driving module circuit successively connect, the control of dynamic driving module
End connects protective relay；
Described power module is connected with processor module and dynamic driving module respectively and provides DC supply for it；
Described its collection terminal of current sample module is electrically connected with the transmission line of three-phase current, and its outfan is with processor module even
Connecing, current sample module is for gathering and process the current signal of three phase mains and result being passed to processor module；
The effect of described processor module:
One is to be analyzed by the three phase mains current signal through current sample resume module, and when meeting drive condition, output accounts for
Pulse signal to the dynamic driving module that empty ratio is 1% ~ 99%, frequency is 1.5KHz ~ 2.5KHz makes it export driving power supply, meets
During disconnected phase condition, stop output pulse signal, make dynamic driving module stop output and drive power supply；
Two is the sampled result receiving and judging voltage detection module, will drive power supply by the dutycycle and frequency changing pulse
Voltage lockout is within 24V ± 2V, as then made determining of switch operating unit when driving supply voltage to lock and be less than 18V
Fixed；
The effect of described dynamic driving module is the control signal according to processor module, export or stop output drive power supply with
Control the picking up or falling of protective relay:
When output drives power supply, protective relay picks up the working power connecting goat, when stopping output driving power supply, and protection
Relay falls the working power cutting off goat；
Its collection terminal of described voltage detection module is connected with dynamic driving module, and its outfan is connected with processor module, voltage
The effect of detection module is the voltage driving power supply of detection dynamic driving module output, and testing result is passed back to processor
Module；
Described comprehensive unit includes: comprehensive treatment device module, communication module, display module and comprehensive power module；
Described communication module and display module output port with comprehensive treatment device module respectively is connected, and comprehensive treatment device module is divided
The not processor module with two set working cells is electrically connected and carries out information exchange by two machine communication；
The effect of described comprehensive treatment device module:
One is to carry out two machine communication with two set working cells, receives the operation information of two set working cells；
Two is to send electric quantity data and status data by communication module to host computer；
Three is to receive the control command of host computer by communication module or receive artificial Two-channel switching operational order；
Communication module has been used for open phase protection and the data exchange of host computer that this multiple redundancy Intelligent live amount shows；
Display module shows three-phase current, driving voltage, warning message and duty in real time；
Comprehensive power module provides DC supply for comprehensive treatment device module.
2. the open phase protection that multiple redundancy Intelligent live amount as claimed in claim 1 shows, it is characterised in that: described electricity
Stream sampling module includes that current sensor and signal processor, current sensor collection terminal electrically connect with the transmission line of three-phase current
Connecing, its outfan is connected with signal processor, and signal processor is connected with processor module；Signal processor is for passing electric current
The current signal that sensor collects flows to processor module after processing.
3. the open phase protection that multiple redundancy Intelligent live amount as claimed in claim 2 shows, it is characterised in that: described dynamic
State drive module include the 1st electrochemical capacitor, the 2nd electrochemical capacitor, the 3rd electrochemical capacitor, the 1st resistance, the 2nd resistance, the 3rd resistance, the 4th
Resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 10th resistance, the 1st diode, the 2nd diode, the 1st
Audion, the 2nd audion, the 3rd audion, the 4th audion；
Described 1st resistance and the 2nd resistance series winding, its public termination the 3rd resistance, another termination working power positive pole of the 1st resistance
With the colelctor electrode of the 3rd audion, the other end ground connection of the 2nd resistance, the 3rd resistance another termination the 1st audion colelctor electrode and
The base stage of the 2nd audion, the grounded emitter of the 1st audion, base stage connect the 4th resistance and the common port of the 5th resistance, the 5th resistance
Other end ground connection, the pulse DT of another termination processor module port conveying of the 4th resistance；
The grounded emitter of the 2nd audion, colelctor electrode connect the 3rd audion and the base stage of the 4th audion, the 3rd transistor collector
With indirect 6th resistance of base stage, the grounded collector of the 4th audion, the emitter stage of the 3rd audion and the 4th audion connects the 1st electricity
Solve capacitance cathode end, the forward end of the 1st electrochemical capacitor negative pole termination the 1st diode and the backward end of the 2nd diode, the 1st two pole
The backward end ground connection of pipe；
The forward of the 2nd diode terminates the 8th resistance and the common port of the 10th resistance and the 2nd electrochemical capacitor negative pole, the 2nd electrolysis electricity
Hold ground connection after plus earth, the 8th resistance other end and the 9th resistance series winding, public termination the 3rd electrolysis of the 8th resistance and the 9th resistance
Capacitance cathode and the common port of the 7th resistance, the 3rd electric capacity minus earth, the other end of the 7th resistance and the A/D end of processor module
Mouth connects；
Protective relay is attempted by between terminals P and terminal Q, and terminals P connects the other end of the 10th resistance, terminal Q ground connection；
The effect of described 1st diode D1 is the stifled stream when the 1st electrochemical capacitor C1 electric discharge, makes discharge current depend on following approach stream
Dynamic: collector terminal Q protective relay terminals P the 10th resistance of emitter stage the 4th audion of the 4th audion
2nd diode the 1st electrochemical capacitor negative pole；
The effect of described 2nd diode D2 is to prevent current direction binding post P when the 1st electrochemical capacitor C1 charging；
The effect of described 2nd electrochemical capacitor C2 is to load discharge when the 1st electrochemical capacitor C1 charging, plays smoothing effect；
When the effect of described 10th resistance is to prevent external short circuit, protection dynamic driving module device does not damages.
4. the open phase protection that the multiple redundancy Intelligent live amount as described in claim 1,2 or 3 shows, it is characterised in that:
The comprehensive power module of described comprehensive unit is entered by current-limiting resistance and diode with two power modules overlapping working cells respectively
Row connects, and the effect of current-limiting resistance does not affect the power module of two set working cells when being to ensure that comprehensive power module short circuit fault
Normal power supply, the effect of diode is to ensure that the power supply of the power module of two set working cells does not influences each other.
5. the open phase protection that multiple redundancy Intelligent live amount as claimed in claim 4 shows, it is characterised in that: described comprehensive
The comprehensive treatment device module connection closing unit has for outside portion offer alarm switch amount and the alarm module of audible alarm.
6. the open phase protection that multiple redundancy Intelligent live amount as claimed in claim 5 shows, it is characterised in that: described many
The weight open phase protection that show of redundancy Intelligent live amount and PERCOM peripheral communication or use RS485 agreement or use switching value warning,
Or employing wireless mode:
When using RS485 agreement: phase failure protector built-in RS485 communication chip, outside employing bus connects, and phase failure protector is hung
It is connected in bus, is set up and the contacting of phase failure protector by host computer method of calling；Traffic rate is 9600bit/S, mounting
Number of units n≤256 of phase failure protector；
When using switching value to report to the police: phase failure protector built-in polarity guard relay, pick up during fault and keep, passing through relay
Contact is reported to the police, and reports to the police and uses bus mode；
When using wireless mode: external radio warning exchange, led to by wireless between phase failure protector and radio alarming exchange
Letter, uses exchange call answering mode, carries out data transmission after setting up contact, and described radio alarming exchange uses RF433.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620534410.9U CN205811520U (en) | 2016-06-03 | 2016-06-03 | The open phase protection that multiple redundancy Intelligent live amount shows |
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|---|---|---|---|
| CN201620534410.9U CN205811520U (en) | 2016-06-03 | 2016-06-03 | The open phase protection that multiple redundancy Intelligent live amount shows |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896473A (en) * | 2016-06-03 | 2016-08-24 | 柳州辰天科技有限责任公司 | Open-phase protection device having a function of multi-redundancy intelligent carried charge display and control method of open-phase protection device |
| CN108711931A (en) * | 2018-06-25 | 2018-10-26 | 柳州辰天科技有限责任公司 | A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply |
| CN109062298A (en) * | 2018-09-19 | 2018-12-21 | 西安微电子技术研究所 | A kind of space goes out cabin environmental monitoring and control device and its control method |
| CN109799773A (en) * | 2019-03-05 | 2019-05-24 | 柳州和利时科技有限责任公司 | A kind of railway outdoor signal equipment monitoring system based on NBIoT Internet of Things |
| CN114079259A (en) * | 2020-08-12 | 2022-02-22 | 天津首瑞智能电气有限公司 | Protective device |
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2016
- 2016-06-03 CN CN201620534410.9U patent/CN205811520U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896473A (en) * | 2016-06-03 | 2016-08-24 | 柳州辰天科技有限责任公司 | Open-phase protection device having a function of multi-redundancy intelligent carried charge display and control method of open-phase protection device |
| CN105896473B (en) * | 2016-06-03 | 2018-04-17 | 柳州辰天科技有限责任公司 | The open phase protection and its control method that multiple redundancy Intelligent live amount is shown |
| CN108711931A (en) * | 2018-06-25 | 2018-10-26 | 柳州辰天科技有限责任公司 | A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply |
| CN108711931B (en) * | 2018-06-25 | 2023-08-18 | 柳州辰天科技有限责任公司 | Controllable composite power supply three-phase alternating current electric switch machine phase failure protector |
| CN109062298A (en) * | 2018-09-19 | 2018-12-21 | 西安微电子技术研究所 | A kind of space goes out cabin environmental monitoring and control device and its control method |
| CN109062298B (en) * | 2018-09-19 | 2021-03-02 | 西安微电子技术研究所 | Space out-of-cabin environment monitoring and control device and control method thereof |
| CN109799773A (en) * | 2019-03-05 | 2019-05-24 | 柳州和利时科技有限责任公司 | A kind of railway outdoor signal equipment monitoring system based on NBIoT Internet of Things |
| CN114079259A (en) * | 2020-08-12 | 2022-02-22 | 天津首瑞智能电气有限公司 | Protective device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20180417 |
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| AV01 | Patent right actively abandoned |