CN108711931A - A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply - Google Patents
A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply Download PDFInfo
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- CN108711931A CN108711931A CN201810663236.1A CN201810663236A CN108711931A CN 108711931 A CN108711931 A CN 108711931A CN 201810663236 A CN201810663236 A CN 201810663236A CN 108711931 A CN108711931 A CN 108711931A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/066—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/09—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against over-voltage; against reduction of voltage; against phase interruption
Abstract
A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply; including power supply unit, control unit, driving unit and current sampling unit; power supply unit includes power supply module I, power supply module II and power control module; the input terminal of power supply module I and power supply module II by current transformer and takes piezoelectric transformer to be connect with three-phase circuit respectively, output termination driving unit, control unit and the power control module of power supply module I and power supply module II；Current sampling unit connects three-phase circuit, and control unit is separately connected current sampling unit, driving unit and power control module, the protective relay of the output termination electric point machine actuating circuit of driving unit；The phase failure protector has 2 power modules, and power supply is reliable, flexible, in goat action process; as one of power module is out of order; phase failure protector dead electricity will not be caused, power supply module II is processor controlled, can maintain whether phase failure protector works on as needed.
Description
Technical field
The present invention relates to a kind of circuit protection device, more particularly to it is a kind of suitable for the controllable composite power supply of rail track three
Phase A.C. point machine phase failure protector.
Background technology
Rail track changes the operating path of train by track switch, and the equipment for changing switch location is known 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, the electric current of another two-phase increases sharply, and causes threephase motor winding excessively high since temperature rises and is burnt
It ruins, therefore in A.C. point machine track switch actuating circuit, is provided with phase failure protector, when disconnected phase occurs, pass through protection
Relay cuts off the action power of goat in time, to protect threephase motor from damage（Referring to attached drawing 2, attached drawing 3）.
Currently, being distinguished from power taking technology, the phase failure protector used on railway mainly has three categories：
First, taking electricity, three transformer secondary series connection to turn voltage by electric current from operating current using three current transformers
Circuit generates three voltages, then by these three voltages after vector superposed, generates a voltage, is directly driven after rectified filtering
It is dynamic that protective relay is made to pick up；
Second is that take electricity from operating current using one or more current transformers, it is rectified after in order to control unit power, be
No driving output is controlled by control unit；
Third, providing drive circuit works power supply using one or more power transformers, the work by transformer from 380V is electric
Pressure obtains required low pressure, and the driving circuit of logic circuit and protective relay is supplied to after rectified filtering voltage regulation.
The power supply technique of the phase failure protector of above-mentioned three categories exists following insufficient：
1. power supply mode is single, reliability is low；No matter for taking electricity that is electric or passing through the arbitrary two-phase in 380V with mutual inductor
Pressure takes the mode of electricity, power supply mode all to only have a kind of single current or voltage to take electricity, the anti-interference energy of single way to take power
Force difference and the poor reliability for causing power supply module can make whole system fail when power supply module is out of order；
2. for using current transformer to take the mode of electricity, have the following disadvantages：
（1）Work as high current（Load overload, power supply short circuit）When, high current will cause the primary side of current transformer to overload；
（2）When goat is stopped, whole system meeting dead electricity results in system that can only be carried during goat works in this way
For simple defencive function, and can not achieve more complicated advanced function, as Redundant Control, electricity are shown, data record,
Action current analysis, the inquiry of historical data, data transmission etc.；
3. for using one or more power transformers to take electric power supply mode from 380V power supplys, have the following disadvantages：
（1）When big voltage（Voltage raising, thunder and lightning）When, by cause voltage take electricity transformer a side overvoltage and failure；
（2）Since power transformer is connected with 380V working powers for a long time, thunder and lightning will cause electricity-fetching module by 380V power supplys
It damages and prevents phase failure protector from working.
Invention content
The purpose of the present invention is to provide a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply, with
Overcome deficiency existing for above-mentioned prior art, improves the reliabilty and availability of phase failure protector.
The technical solution adopted by the present invention is that：
A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply, the phase failure protector are dynamic with electric point machine
It is connected as it as circuit and open-phase protection is provided；The phase failure protector includes that power supply unit, control unit, driving unit and electric current are adopted
Sample unit, the power-supply circuit of said supply unit are connect with the three-phase circuit for providing working power for goat, and power supply is single
The output end of member is connected as it with control unit and driving unit and provides working power respectively；
Said supply unit includes power supply module I, power supply module II and power control module, the input terminal of the power supply module I
It is connect with three-phase circuit by electric current power-supply circuit, the output end of power supply module I is separately connected driving unit, control unit
And power control module；The input terminal of the power supply module II is connect by voltage power-supply circuit with three-phase circuit, power supply
The output end of module II is separately connected driving unit, control unit and power control module；
The current sampling unit（Input terminal connects three-phase circuit, the connection of current sampling unit output end with isolation method
Control unit, control unit are separately connected power control module and driving unit by its first control terminal and the second control terminal,
The protective relay of the output termination electric point machine actuating circuit of driving unit, the communication of control unit export outside termination
Detecting instrument or system host；
The driving unit is used for the instruction of reception control unit, and driving output makes the protection relay of electric point machine actuating circuit
Device acts, and stopping output when three-phase circuit breaks phase makes the protective relay stopping of electric point machine actuating circuit act；
The current sampling unit is used to carry out isolated sampling to three-phase circuit, and sampled data is sent to control unit
It is handled；
Described control unit is used for：
1）Signal from current sampling unit is handled：It is aobvious including disconnected mutually judgement, branch supply management, alarm, information
Show, the detection of driving unit driving voltage；
2）After the startup of power supply module I, provides unlatching to power control module and electric control signal or stopping is taken to take electric control signal,
Realize the control to II working condition of power supply module；
The power supply module I is used for when goat starts action, and electricity is taken simultaneously from three-phase circuit by electric current power-supply circuit
Operating current is converted into alternating voltage, it is rectified be converted into DC voltage after, unit, driving unit and power supply control in order to control
Module provides working power；
After the power supply module II is used under the control of power control module start, by voltage power-supply circuit from three-phase alternating current
Circuit takes electricity, and the 380V power supplys of acquirement are converted to low AC voltage, it is rectified be converted into DC voltage after, it is single in order to control
Member, driving unit and power control module provide working power；
The power control module is used for：After the startup of power supply module I, the unlatching provided according to control unit takes electric control signal
Or stop taking electric control signal, the working condition of power supply module II is controlled, be switched on or switched off power supply module II takes electricity
The connection of primary and 380V power supplys, to be combined into the II two power supply module outputs of power supply module I and power supply module
For the composite power supply system of a redundancy, unit, driving unit and power control module provide working power in order to control.
Its further technical solution is：
Described control unit includes processor, comprehensive power circuit, signal conditioning circuit, driving voltage detection circuit, display electricity
Road, communicating circuit and warning circuit；
The processor connects power supply module I and power supply module II by comprehensive power circuit, is connected by signal conditioning circuit
Current sampling unit connects driving unit by driving voltage detection circuit, and processor is connected respectively by the first, second control terminal
It connects power control module and is separately connected power control module and driving unit, the internal control terminal of processor is separately connected display electricity
Road, communicating circuit and warning circuit, the detecting instrument or system host of communicating circuit exported outside termination；
The processor is used to adjust current sampling signal progress digital filtering, logical operation, power supply control, driving voltage automatically
Whole, Current Voltage is shown and controlling alarm and communication control；
The comprehensive power circuit is used to provide working power to each circuit in control unit inside；
The signal conditioning circuit is for being filtered the current signal from current sampling unit, amplifying and carrying out electric current-
Voltage is converted, to obtain measurable voltage signal, the analog-digital converter being conveyed to inside processor；
The driving voltage detection circuit is used to detect the operating voltage of driving unit, and detected value is fed back to processor, by
It manages device and driving unit is adjusted according to value of feedback, change the output of driving voltage；
The display circuit is used to show the working current value and driving voltage value of three-phase circuit；
The communicating circuit is used to transmit the electric current, voltage and work of this phase failure protector to external detecting instrument or system host
Make status information；
The warning circuit is used to break the abnormal abnormal feelings of phase, three-phase current unbalance, driving voltage to three-phase circuit
Condition is alarmed；
The power supply module I includes electric current power-supply circuit, rectification circuit I and regulator circuit I；The electric current power-supply circuit passes through electricity
The primary coil of current transformer is connect with three-phase circuit, the input terminal of electric current power-supply circuit output termination rectification circuit I, whole
The input terminal of the output termination regulator circuit I of current circuit I, output end unit, driving unit and the power supply in order to control of regulator circuit I
Control module provides working power；
The power supply module II includes voltage power-supply circuit, rectification circuit II and regulator circuit II；The voltage power-supply circuit is logical
It crosses and takes piezoelectric transformer and the normally opened contact of electric control relay is taken to be connect with three-phase circuit, voltage power-supply circuit output termination
The input terminal of rectification circuit II, the input terminal of the output termination regulator circuit II of rectification circuit II, the output end of regulator circuit II
Unit, driving unit and power control module provide working power in order to control；
The power control module includes taking electric control relay, described to take electric control relay or be electromagnetic relay or be
Reed switch relay is solid-state relay or is optical relay.
Its further technical solution：
The power supply module II is controlled power supply module, and working method is intermittent duty or continuously-running duty is
It is directly controlled by control unit control or by circuit or timer controls.
Further：
The power control module includes taking electric control relay, the 2nd electrolytic capacitor, the 3rd zener diode, the 8th diode, the
3 resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 3rd triode, the 4th triode and field-effect tube；
After one end of the source electrode of field-effect tube and the 5th resistance is connected and power supply module I and power supply module II first for electricity output
End is connected, and the collector of the 4th triode of another termination of field-effect tube gate pole and the 5th resistance, the emitter of the 4th triode connects
The base stage on ground, the 4th triode connects the 6th resistance, and the first control terminal of another termination control unit processor of the 6th resistance receives
Unlatching takes electric control signal or stopping to take electric control signal；
FET drain, the 3rd resistance one end, the 3rd transistor collector connect the 2nd electrolytic capacitor anode, the 3rd another termination of resistance
The backward end of the base stage and the 3rd zener diode of 3rd triode；
3rd transistor emitter connects the 4th resistance one end, after the 4th resistance the 2nd electrolytic capacitor cathode of another termination, then with the 8th two pole
The backward end of pipe and one end of electric control relay coil is taken to connect；
The forward end of 3rd zener diode, the forward end of the 8th diode, the emitter of the 4th triode and take electric control relay
The other end of coil is grounded.
Further：
The voltage sample circuit of the power supply module II includes taking piezoelectric transformer, the 1st fuse, the 1st varistor and taking automatically controlled
The normally opened contact of relay processed, the 1st varistor both ends, which are connected in parallel on, takes piezoelectric transformer primary both ends, and wherein one end is connected to three-phase again
One phase of power supply, the other end and the 1st fuse and takes normally opened contact one end of electric control relay to connect, and takes electric control relay normal
It opens the contact other end with another phase of three phase mains to be connected, the input terminal for the two termination rectification circuits II for taking piezoelectric transformer secondary；
The rectification circuit II of the power supply module II includes the 1st rectifier bridge and the 1st electrolytic capacitor, two exchanges of the 1st rectifier bridge
Terminal is connected with two output ends of voltage power-supply circuit, the 1st cathode rectifier output the 1st electrolytic capacitor of termination anode and voltage stabilizing
The input terminal of circuit II, cathode output end ground connection；
The regulator circuit II of the power supply module II includes the 1st resistance, the 1st two-way Transient Suppression Diode, two pole of the 1st voltage stabilizing
Pipe, the 1st diode, the 2nd diode and the 1st triode；
1st two-way Transient Suppression Diode one end, the 1st resistance one end, the 1st transistor collector and the 1st diode forward end
Connect the 1st cathode rectifier output end, reversed the 1st transistor base of termination of the 1st resistance other end and the 1st zener diode, the 1st pair
It is grounded to the Transient Suppression Diode other end, the 1st zener diode forward end；
The emitter of 1st triode connects the forward end of the 2nd diode, the 2nd diode backward end as the second power supply output end, to
Drive module is powered, and the collector of the 1st triode connects the forward end of the 1st diode, and the backward end of the 1st diode is supplied as first
Electricity output end powers to control unit and power control module.
Further：
The power supply module I includes the first electric current power-supply circuit, the first rectification circuit I and regulator circuit I；
The first electric current power-supply circuit includes the 1st current transformer, the 2nd varistor and the 2nd fuse, the 1st Current Mutual Inductance
A wherein phase for the primary side access three-phase circuit of device, the 2nd fuse are constituted after connecting with the 1st Current Transformer Secondary side
The input terminal of two output the first rectification circuits I of termination of the first electric current power-supply circuit, the 2nd varistor are connected in parallel on the first electric current and take
Between two output ends of circuit；
First rectification circuit I includes the 2nd rectifier bridge, the 3rd electrolytic capacitor and the 2nd two-way Transient Suppression Diode, the 2nd rectification
Two ac terminals of bridge are connected with two output ends of the first electric current power-supply circuit, the 3rd electrolysis electricity of the 2nd cathode rectifier termination
Hold anode and input terminal of the 2nd two-way Transient Suppression Diode one end as regulator circuit I, the 3rd electrolytic capacitor cathode ground connection；
The regulator circuit I includes the 2nd resistance, the 2nd triode, the 3rd diode and the 4th diode；2nd two-way transient state inhibits two
Pole pipe one end, the 2nd resistance one end, the 2nd transistor collector and the positive of the 4th diode connect the output of the 2nd cathode rectifier
Reversely the 2nd transistor base of termination, the 2nd two-way Transient Suppression Diode are another for end, the 2nd resistance other end and the 2nd zener diode
One end, the 2nd zener diode forward end ground connection；
The emitter of 2nd triode connects the forward end of the 3rd diode, and the 3rd diode reversely terminates the second confession of power supply module II
Electricity output end powers to driving unit, and the collector of the 2nd triode connects the forward end of the 4th diode, the 4th diode it is reversed
The the first power supply output end for terminating power supply module II, powers to control unit and power control module.
Further：
The power supply module I further includes the second electric current power-supply circuit and the second rectification circuit I；The second electric current power-supply circuit packet
The 2nd current transformer, the 3rd varistor and the 3rd fuse are included, the primary side of the 2nd current transformer accesses three-phase circuit
Another phase, the 3rd fuse constituted after connecting with the 2nd Current Transformer Secondary side the second electric current power-supply circuit two output termination
The input terminal of second rectification circuit I, the 3rd varistor are connected in parallel between two output ends of the second electric current power-supply circuit；
Second rectification circuit I includes the 3rd rectifier bridge, the 4th electrolytic capacitor and the 3rd two-way Transient Suppression Diode, the 3rd rectification
Two ac terminals of bridge are connected with two output ends of the second electric current power-supply circuit, the 4th electrolysis electricity of the 3rd cathode rectifier termination
Hold anode and input terminal of the 3rd two-way Transient Suppression Diode one end as regulator circuit I, the 4th electrolytic capacitor cathode ground connection；
The 5th diode is concatenated between first rectification circuit I and regulator circuit I, is gone here and there between the second rectification circuit I and regulator circuit I
Connect the 6th diode.
Further：
The power supply module I further includes third electric current power-supply circuit and third rectification circuit I；The third electric current power-supply circuit packet
The 3rd current transformer, the 4th varistor and the 4th fuse are included, the primary side of the 3rd current transformer accesses three-phase circuit
Another phase, the 4th fuse connect with the 3rd Current Transformer Secondary side after constitute third electric current power-supply circuit two output termination
The input terminal of third rectification circuit I, the 4th varistor are connected in parallel between two output ends of third electric current power-supply circuit；
The third rectification circuit I includes the 4th rectifier bridge, the 5th electrolytic capacitor and the 4th two-way Transient Suppression Diode, the 4th rectification
Two ac terminals of bridge are connected with two output ends of third electric current power-supply circuit, the 5th electrolysis electricity of the 4th cathode rectifier termination
Hold anode and input terminal of the 4th two-way Transient Suppression Diode one end as regulator circuit I, the 5th electrolytic capacitor cathode ground connection；
The 7th diode is concatenated between third rectification circuit I and regulator circuit I.
Due to taking above-mentioned technical proposal, a kind of disconnected phase of three-phase alternating current electric rotating rut machine of controllable composite power supply of the present invention
Protector has the advantages that：
1. a kind of three-phase alternating current electric rotating rut machine phase failure protector power supply reliability of controllable composite power supply is high, power supply unit
Including two power modules, in goat action process, or when variation fierce because of current or voltage generation, if one of them
Power module is out of order, and will not cause phase failure protector dead electricity；
（1）When big voltage（Electric voltage over press, thunder and lightning）When, if voltage takes a side overvoltage of the transformer of electricity and failure, but it is big
Voltage verses current takes the current transformer of electricity without influence, will not cause current mulual inductor malfunction, all can guarantee the power supply of system；
（2）Work as high current（Load overload, power supply short circuit）When, if high current causes the primary side of current transformer to overload and event
Barrier, but the size of current in the circuits 380V takes the transformer of electricity without influence voltage, will not cause transformer fault；
2. the phase failure protector power flexibility it is strong, power supply module II by taking piezoelectric transformer to be connect with three-phase alternating-current supply,
Power supply module II is processor controlled, and phase failure protector can be maintained to work on according to actual needs and be also off its work.
It is disconnected to a kind of three-phase alternating current electric rotating rut machine of controllable composite power supply of the present invention with reference to the accompanying drawings and examples
The technical characteristic of phase protector is further described.
Description of the drawings
Fig. 1：The three-phase alternating current electric rotating rut machine phase failure protector structure diagram of the controllable composite power supply of the present invention；
Fig. 2：Has railway signal track switch open phase protection structure diagram；
Fig. 3：Has railway signal track switch open phase protection electric operation control circuit figure；
Fig. 4：The control unit structure diagram of the three-phase alternating current electric rotating rut machine phase failure protector of the controllable composite power supply of the present invention；
Fig. 5：A kind of three-phase alternating current electric rotating rut machine phase failure protector circuit diagram of controllable composite power supply of the embodiment of the present invention one
（Power supply module I includes the first electric current power-supply circuit, the first rectification circuit I and regulator circuit I）；
Fig. 6：A kind of three-phase alternating current electric rotating rut machine phase failure protector circuit diagram of controllable composite power supply of the embodiment of the present invention two
（Power supply module I includes the first electric current power-supply circuit, the first rectification circuit I, the second electric current power-supply circuit, I and of the second rectification circuit
Regulator circuit I）；
Fig. 7：A kind of three-phase alternating current electric rotating rut machine phase failure protector circuit diagram of controllable composite power supply of the embodiment of the present invention three
（Power supply module I include the first electric current power-supply circuit, the first rectification circuit I, the second electric current power-supply circuit, the second rectification circuit I,
Third electric current power-supply circuit, third rectification circuit I and regulator circuit I）；
In Fig. 1：
01-current sampling unit, 02-power supply module I, 03-power supply module II, 04-power control module, 05-control are single
Member, 06-driving unit, 07-electric point machine actuating circuit, BHJ-protective relay；
In Fig. 2, Fig. 3：
I-phase failure protector, II-A.C. point machine, 21-ac motors, the conversion of 22-power and contact group,
The first positioning operation relay of BHJ-protective relay, 1DQJ-, 1DQJF-the first positioning operation repeater relays, 2DQJ-
Second positioning operation relay, 2DQJF-the second positioning operation repeater relays, DCA-button, FCA-button, KZ-control
Positive electricity, KF-control negative electricity；
In Fig. 4：
051-processor, 052-comprehensive power circuit, 053-signal conditioning circuit, 054-driving voltage detection circuit,
055-display circuit, 056-communicating circuit, 057-warning circuit；
In Fig. 5, Fig. 6, Fig. 7：
The 1st electrolytic capacitors of C1-, the 2nd electrolytic capacitors of C2-, the 3rd electrolytic capacitors of C3-, the 4th electrolytic capacitors of C4-, the 5th electricity of C5-
Solve capacitance；
The 1st resistance of R1-, the 2nd resistance of R2-, the 3rd resistance of R3-, the 4th resistance of R4-, the 5th resistance of R5-, the 6th resistance of R6-；
The 1st current transformers of CT1-, the 2nd current transformers of CT2-, the 3rd current transformers of CT3-；
The 1st varistors of RV1-, the 2nd varistors of RV2-, the 3rd varistors of RV3-, the 4th varistors of RV4-；
The 1st fuses of FU1-, the 2nd fuses of FU2-, the 3rd fuses of FU3-, the 4th fuses of FU4-；
The 1st rectifier bridges of BRI1-, the 2nd rectifier bridges of BRI2-, the 3rd rectifier bridges of BRI3-, the 4th rectifier bridges of BRI4-；
The 1st Transient Suppression Diodes of TVS1-, the 2nd Transient Suppression Diodes of TVS2-, the 3rd Transient Suppression Diodes of TVS3-,
The 4th Transient Suppression Diodes of TVS4-；
The 1st diodes of D1-, the 2nd diodes of D2-, the 3rd diodes of D3-, the 4th diodes of D4-, the 5th diodes of D5-,
The 6th diodes of D6-, the 7th diodes of D7-, the 8th diodes of D8-；
The 1st zener diodes of VD1-, the 2nd zener diodes of VD2-, the 3rd zener diodes of VD3-；
The 1st triodes of Q1-, the 2nd triodes of Q2-, the 3rd triodes of Q3-, the 4th triodes of Q4-, Q5-field-effect tube；
T-takes piezoelectric transformer, KA-to take electric control relay.
Specific implementation mode,
Embodiment one
A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply, the phase failure protector are dynamic with electric point machine
Make circuit 07 and its offer open-phase protection is provided；The phase failure protector includes power supply unit, control unit 05,06 and of driving unit
Current sampling unit 01, the power-supply circuit of said supply unit connect with the three-phase circuit for providing working power for goat
It connects, the output end of power supply unit is connected as it with control unit and driving unit and provides working power respectively；
Said supply unit includes power supply module I 02, power supply module II 03 and power supply control mould（04, the power supply module I 02
Input terminal is connect by electric current power-supply circuit with three-phase circuit, and the output end of power supply module I is separately connected driving unit, control
Unit and power control module processed；The input terminal of the power supply module II 03 is connected by voltage power-supply circuit and three-phase circuit
It connects, the output end of power supply module II is separately connected driving unit, control unit and power control module；
01 input terminal of the current sampling unit connects three-phase circuit with isolation method, and 01 output end of current sampling unit connects
Control unit 05 is connect, control unit is separately connected power control module 04 and driving by its first control terminal and the second control terminal
Unit 06, the protective relay BHJ of the output termination electric point machine actuating circuit of driving unit, the communication output of control unit
Detecting instrument or system host outside termination；
The driving unit 06 is used for：The instruction of reception control unit, driving output make the protection of electric point machine actuating circuit
Relay BHJ actions stop exporting the protective relay BHJ for making electric point machine actuating circuit when three-phase circuit breaks phase
Stopping acts；
The current sampling unit 01 is used to carry out isolated sampling to three-phase circuit, and sampled data is sent to control list
Member is handled；
Described control unit 05 is used for：
1）Signal from current sampling unit is handled：It is aobvious including disconnected mutually judgement, branch supply management, alarm, information
Show, the detection of driving unit driving voltage；
2）After the startup of power supply module I, provides unlatching to power control module and electric control signal or stopping is taken to take electric control signal,
Realize the control to II working condition of power supply module；
The power supply module I 02 is used to, when goat starts action, electricity is taken from three-phase circuit by electric current power-supply circuit
And operating current is converted into alternating voltage, it is rectified be converted into DC voltage after, unit, driving unit and for automatically controlled in order to control
Molding block provides working power；
The power supply module II 03 is used for：After starting under the control of power control module, by voltage power-supply circuit from three-phase
Alternating current circuit takes electricity, and the 380V power supplys of acquirement are converted to low AC voltage, it is rectified be converted into DC voltage after, in order to control
Unit, driving unit and power control module provide working power；
The power control module 04 is used for：After the startup of power supply module I, the unlatching provided according to control unit takes electric control to believe
Number or stop take electric control signal, the working condition of power supply module II is controlled, taking for power supply module II is switched on or switched off
The connection of piezoelectric transformer primary and 380V power supplys, to combine the II two power supply module outputs of power supply module I and power supply module
As the composite power supply system of a redundancy, unit, driving unit and power control module provide working power in order to control.
Described control unit 05 includes processor 051, comprehensive power circuit 052, signal conditioning circuit 053, driving voltage
Detection circuit 054, display circuit 055, communicating circuit 056 and warning circuit 057；
The processor 051 connects power supply module I and power supply module II by comprehensive power circuit 052, passes through signal condition electricity
Road 053 connects current sampling unit 01, connects driving unit 06 by driving voltage detection circuit 054, processor 051 passes through the
One, the second control terminal is separately connected power control module and is separately connected power control module 04 and driving unit 06, processor 051
Internal control terminal be separately connected display circuit 055, communicating circuit 056 and warning circuit 057, the output end of communicating circuit 056
Connect external detecting instrument or system host；
The processor 051 is used to carry out digital filtering, logical operation, power supply control, driving voltage certainly to current sampling signal
Dynamic adjustment, Current Voltage are shown and controlling alarm and communication control；
The comprehensive power circuit 052 is used to provide working power to each circuit in control unit inside；
The signal conditioning circuit 053 is for being filtered the current signal from current sampling unit, amplifying and carrying out electricity
Stream-voltage conversion, to obtain measurable voltage signal, the analog-digital converter being conveyed to inside processor；
The driving voltage detection circuit 054 is used to detect the operating voltage of driving unit, and detected value is fed back to processor, by
Processor adjusts driving unit according to value of feedback, changes the output of driving voltage；
The display circuit 055 is used to show the working current value and driving voltage value of three-phase circuit；
The communicating circuit 056 is used to transmit the electric current of this phase failure protector, voltage to external detecting instrument or system host
And work state information；
The warning circuit 057 is used to break the abnormal exception of phase, three-phase current unbalance, driving voltage to three-phase circuit
Situation is alarmed；
The power supply module I 02 includes electric current power-supply circuit, rectification circuit I and regulator circuit I；The electric current power-supply circuit passes through
The primary coil of current transformer is connect with three-phase circuit, the input terminal of electric current power-supply circuit output termination rectification circuit I,
The input terminal of the output termination regulator circuit I of rectification circuit I, output end unit, driving unit and the confession in order to control of regulator circuit I
Electric control module provides working power；
The power supply module II 03 includes voltage power-supply circuit, rectification circuit II and regulator circuit II；The voltage power-supply circuit
By taking piezoelectric transformer T and the normally opened contact of electric control relay being taken to be connect with three-phase circuit, the output of voltage power-supply circuit
Terminate rectification circuit II input terminal, rectification circuit II output termination regulator circuit II input terminal, regulator circuit II it is defeated
Unit, driving unit and power control module provide working power to outlet in order to control；
The power control module 04 includes taking electric control relay KA, it is described take electric control relay or for electromagnetic relay,
Or it is reed switch relay or is solid-state relay or is optical relay.
The power supply module II 03 is controlled power supply module, and working method is intermittent duty or continuous work
Mode is to be controlled by control unit or directly controlled by circuit or timer control.
The power control module 04 includes taking electric control relay KA, the 2nd electrolytic capacitor C2, the 3rd zener diode
VD3, the 8th diode D8, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 3rd triode Q3, the 4th triode
Q4 and field-effect tube Q5；
First power supply of the connected rear and power supply module I in one end of the source electrode of field-effect tube Q5 and the 5th resistance R5 and power supply module II
Output end connects, the collector of the 4th triode Q4 of another termination of field-effect tube gate pole and the 5th resistance, the hair of the 4th triode Q4
Emitter grounding, the base stage of the 4th triode meet the 6th resistance R6, and the first of another termination control unit processor 051 of the 6th resistance
Control terminal receives unlatching and electric control signal or stopping is taken to take electric control signal；
Field-effect tube Q5 drain electrodes, the 3rd one end resistance R3, the 3rd triode Q3 collectors connect the 2nd electrolytic capacitor C2 anodes, the 3rd resistance
The backward end of the base stage and the 3rd zener diode VD3 of the 3rd triode Q3 of another terminations of R3；
3rd triode Q3 emitters connect the 4th one end resistance R4, after the 4th resistance the 2nd electrolytic capacitor C2 cathode of another termination, then with
The backward end of 8th diode and one end of electric control relay coil is taken to connect；
It the forward end of 3rd zener diode VD3, the forward end of the 8th diode D8, the emitter of the 4th triode Q4 and takes automatically controlled
The other end of relay coil processed is grounded.
The voltage sample circuit of the power supply module II 03 includes taking piezoelectric transformer T, the 1st fuse FU1, the 1st pressure-sensitive electricity
Resistance RV1 and the normally opened contact for taking electric control relay KA；
1st both ends varistor RV1, which are connected in parallel on, takes piezoelectric transformer primary both ends, and wherein one end is connected to one phase of three phase mains again, separately
One end and the 1st fuse and normally opened contact one end of electric control relay is taken to connect, takes electric control relay normally open contact another
End is connected with another phase of three phase mains, the input terminal for the two termination rectification circuits II for taking piezoelectric transformer secondary；
The rectification circuit II of the power supply module II include the 1st rectifier bridge BR I 1 and the 1st electrolytic capacitor C1, the two of the 1st rectifier bridge
A ac terminal is connected with two output ends of voltage power-supply circuit, the 1st cathode rectifier output termination the 1st electrolytic capacitor anode
With the input terminal of regulator circuit II, cathode output end ground connection；
The regulator circuit II of the power supply module II includes the 1st resistance R1, the 1st two-way Transient Suppression Diode TVS1, the 1st voltage stabilizing
Diode VD1, the 1st diode D1, the 2nd diode D2 and the 1st triode Q1；
1st two-way Transient Suppression Diode one end, the 1st resistance one end, the 1st transistor collector and the 1st diode forward end
Connect the 1st cathode rectifier output end, reversed the 1st transistor base of termination of the 1st resistance other end and the 1st zener diode, the 1st pair
It is grounded to the Transient Suppression Diode other end, the 1st zener diode forward end；
The emitter of 1st triode connects the forward end of the 2nd diode, the 2nd diode backward end as the second power supply output end, to
Driving unit is powered, and the collector of the 1st triode connects the forward end of the 1st diode, and the backward end of the 1st diode is supplied as first
Electricity output end powers to control unit and power control module.
The power supply module I 02 includes the first electric current power-supply circuit, the first rectification circuit I and regulator circuit I；Described first
Electric current power-supply circuit includes the 1st Current Transmit 1, the 2nd varistor RV2 and the 2nd fuse FU2, the 1st current transformer
Primary side accesses a wherein phase for three-phase circuit, and the 2nd fuse constitutes first after connecting with the 1st Current Transformer Secondary side
The input terminal of two output the first rectification circuits I of termination of electric current power-supply circuit, the 2nd varistor are connected in parallel on the first electric current and take electricity electricity
Between two output ends on road；
First rectification circuit I includes the 2nd rectifier bridge BR I 2, the 3rd electrolytic capacitor C3 and the 2nd two-way Transient Suppression Diode
TVS2, two ac terminals of the 2nd rectifier bridge are connected with two output ends of the first electric current power-supply circuit, the 2nd cathode rectifier
Terminate the input terminal of the 3rd electrolytic capacitor anode and the 2nd two-way Transient Suppression Diode one end as regulator circuit I, the 3rd electrolysis electricity
Hold cathode ground connection；The regulator circuit I includes the 2nd resistance R2, the 2nd three pole Q2, the 3rd diode D3 and the 4th diode D4；
2nd two-way Transient Suppression Diode one end, the 2nd resistance one end, the 2nd transistor collector and the 4th diode forward end
Connect the 2nd cathode rectifier output end, reversed the 2nd transistor base of termination of the 2nd resistance other end and the 2nd zener diode, the 2nd
The two-way Transient Suppression Diode other end, the 2nd zener diode forward end ground connection.
The emitter of 2nd triode connects the forward end of the 3rd diode, and the 3rd diode reversely terminates the of power supply module II
Two power supply output ends, power, the collector of the 2nd triode connects the forward end of the 4th diode, the 4th diode to driving unit
Reversed termination power supply module II first power supply output end, powers to control unit and power control module.
Embodiment two
A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply, structure and embodiment one are essentially identical,
Except that its power supply module I further includes that the second electric current takes in addition to including the first electric current power-supply circuit, the first rectification circuit I
Circuit, the second rectification circuit I and regulator circuit I（Referring to attached drawing 6）.
The second electric current power-supply circuit includes the 2nd Current Transmit 2, the 3rd varistor RV3 and the 3rd fuse
FU3, another phase of the primary side access three-phase circuit of the 2nd current transformer, the 3rd fuse and the 2nd current transformer two
The input terminal of two output the second rectification circuits I of termination of the second electric current power-supply circuit is constituted after secondary side series connection, the 3rd varistor is simultaneously
It is associated between two output ends of the second electric current power-supply circuit；
Second rectification circuit I includes the 3rd rectifier bridge BRI3, the 4th electrolytic capacitor C4 and the 3rd two-way Transient Suppression Diode
TVS3, two ac terminals of the 3rd rectifier bridge are connected with two output ends of the second electric current power-supply circuit, the 3rd cathode rectifier
Terminate the input terminal of the 4th electrolytic capacitor anode and the 3rd two-way Transient Suppression Diode one end as regulator circuit I, the 4th electrolysis electricity
Hold cathode ground connection；
The 5th diode D5 is concatenated between first rectification circuit I and regulator circuit I, between the second rectification circuit I and regulator circuit I
Concatenate the 6th diode D6.
Embodiment three
A kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply, structure and embodiment two are essentially identical,
Except that its power supply module I is except including the first electric current power-supply circuit, the first rectification circuit I, the second electric current power-supply circuit, the
Further include third electric current power-supply circuit, third rectification circuit I and regulator circuit I except two rectification circuits I（Referring to attached drawing 7）.
The third electric current power-supply circuit includes the 3rd Current Transmit 3, the 4th varistor RV4 and the 4th fuse
FU4, another phase of the primary side access three-phase circuit of the 3rd current transformer, the 4th fuse and the 3rd current transformer two
The input terminal of two output termination third rectification circuits I of third electric current power-supply circuit is constituted after secondary side series connection, the 4th varistor is simultaneously
It is associated between two output ends of third electric current power-supply circuit；
The third rectification circuit I includes the 4th rectifier bridge BR I 4, the 5th electrolytic capacitor C5 and the 4th two-way Transient Suppression Diode
TVS4, two ac terminals of the 4th rectifier bridge are connected with two output ends of third electric current power-supply circuit, the 4th cathode rectifier
Terminate the input terminal of the 5th electrolytic capacitor anode and the 4th two-way Transient Suppression Diode one end as regulator circuit I, the 5th electrolysis electricity
Hold cathode ground connection；
The 7th diode D7 is concatenated between third rectification circuit I and regulator circuit I.
Embodiment one to a kind of controllable composite power supply of embodiment three three-phase alternating current electric rotating rut machine phase failure protector base
This workflow：
When starting to drive goat action, the electric current power-supply circuit of power supply module I is obtained from three-phase circuit operating current
Take induced current（It uses current transformer to induce the electric current needed for power supply module I in a manner of being isolated, realizes alternating current
It is converted into DC voltage）, the voltage for control unit, driving unit work is generated, while being also provided to power control module, controlled
Unit processed takes electric control signal to one unlatching of power control module, makes to take electric control relay KA dynamic in power control module
Make, the normally opened contact of electric control relay is taken to be closed, power supply module II is accessed into 380V power supplys, is powered and generates stabilization
For electricity output, to realize that two power supply modules are powered to control unit and driving unit simultaneously；Terminate when goat acts, supplies
Electric module I stops power supply, and control unit decides whether to continue to keep access 380V power supplys and make to take automatically controlled according to actual needs
Relay processed keeps work or makes its recovery, to realize the control to power supply module II.
Control process：
When initialization, phase failure protector control system is in power failure state, when goat starts action, 380V three-phase alternating currents
Circuit generates operating current, and the power-supply circuit of power supply module I obtains induced current from operating current, and rectified module converter is straight
It after galvanic electricity pressure and filtering voltage regulation, powers to control unit and driving unit, while also powering to power control module, control unit
Unlatching is sent out to power control module and takes electric control signal, and power control module takes electric control relay energized action its is normally opened
Power supply module II is taken piezoelectric transformer primary to be connected with 380V power supplys by contact closure, and power supply module II enters normal work shape
State is converted after DC voltage and filtering voltage regulation transformer secondary output alternating voltage to by rectification module and is used as electricity output, with
Power supply module I is combined for electricity output, in order to control unit, driving unit and power control module continued power.
When goat action terminates, I dead electricity of power supply module is stopped, and determining the need for cut-out by control unit supplies
The power supply of electric module II takes electric control signal to be also off electric control is taken to believe to select to send out unlatching to power control module
Number, take electric control signal, power control module that electric control relay electric-loss is taken to restore if sending out stopping, normal opened contact
It disconnects, cut-out electricity-fetching module II takes the connection of piezoelectric transformer primary and 380V power supplys, so that the power supply of power supply module II is failed, does not have
For electricity output, entire phase failure protector dead electricity restPoses；If control unit continues to send out out to power control module
It opens and takes electric control signal, then power control module takes the electric control relay to keep work once electrified, at the beginning of II transformer of power supply module
Grade keeps connecting with 380V power supplys, and power supply module II is to control unit, driving unit and power control module continued power.
Power control module operation principle：
It 3rd triode, the 2nd electrolytic capacitor, the 3rd resistance, the 4th resistance, the 3rd zener diode, the 8th diode and takes automatically controlled
Relay coil processed（Electromagnetic relay or for reed switch relay coil or be solid-state relay or optical relay control
End processed）Composition power supply self-hold circuit, system obtain it is electric after, system voltage by power supply self-sustaining control circuit, then pass through the 2nd electricity
Solution capacitance, which is added to, takes electric control relay coil（Or control section）On, take electric control relay coil（Or control section）
Electricity, normally opened contact are closed, and the primary of piezoelectric transformer is taken to connect with two in three phase mains in II voltage power-supply circuit of power supply module
It is logical, it generates the output of the alternating voltage after decompression and is supplied to power supply module II, to generate steady dc voltage output, with power supply
It powers as control unit after being combined for electricity output of module I, power supply module II can constantly work；In self-hold circuit,
2nd electrolytic capacitor is that effect is to obtain electric initial stage in self-hold circuit, which not yet charges, and meeting transient switching is straight by system voltage
It connects to be added to and takes electric control relay coil（Or control section）On, reduce the pickup time for taking electric control relay, with the time
Lengthening, after the 2nd electrolytic capacitor is fully charged, system voltage would not be applied directly to take electric control relay coil（Or control unit
Point）On, the 3rd triode, the 3rd resistance, the 4th resistance, the effect of the 3rd zener diode are to take the electric control actuating of relay, normally opened
It is supplied to the voltage less than system voltage value after contact closure and takes electric control relay coil（Or electromagnetic relay or it is
Reed switch relay coil or control terminal for solid-state relay or optical relay）, maintain the closure of relay normally open contact；
4th triode, resistance are added to the 4th transistor base, and the base-emitter of the 4th triode is made to have electric current to flow through, collection
Electrode-transmitter pole is connected, and the 4th transistor collector and field-effect tube gate potentials are close to ground potential, field-effect tube source electrode-leakage
Pole is connected, and system voltage is added in power supply self-hold circuit, and the voltage of power supply self-hold circuit work, power supply module II takes electricity electricity
380V power supplys are connected on road, and power supply module II works normally；When control signal is low level signal, expression will stop powering, low electricity
Ordinary mail number is added to the 4th transistor base by the 6th resistance, and the base-emitter no current of the 4th triode flows through, collector-hair
Emitter-base bandgap grading ends, and the 4th transistor collector and field-effect tube gate potentials are system voltage value, and field-effect tube source drain ends,
Power supply self-hold circuit fails because of that can not be powered, and cuts off the voltage power-supply circuit and 380V power supplys of power supply module II
Connection, power supply module II are stopped.
Claims (8)
1. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply, the phase failure protector and electric point machine
Actuating circuit（07）It is connected as it and open-phase protection is provided；
It is characterized in that：The phase failure protector includes power supply unit, control unit（05）, driving unit（06）With current sample list
Member（01）, the power-supply circuit of said supply unit connect with the three-phase circuit for providing working power for goat, and power supply is single
The output end of member is connected as it with control unit and driving unit and provides working power respectively；
Said supply unit includes power supply module I（02）, power supply module II（03）And power control module（04）, the power supply mould
Block I（02）Input terminal connect with three-phase circuit by electric current power-supply circuit, the output end of power supply module I is separately connected drive
Moving cell, control unit and power control module；The power supply module II（03）Input terminal pass through voltage power-supply circuit and three
Phase alternating current circuit connects, and the output end of power supply module II is separately connected driving unit, control unit and power control module；
The current sampling unit（01）Input terminal connects three-phase circuit, current sampling unit with isolation method（01）Output
End connection control unit（05）, control unit is separately connected power control module by its first control terminal and the second control terminal
（04）And driving unit（06）, the protective relay of the output termination electric point machine actuating circuit of driving unit（BHJ）, control
Detecting instrument or system host outside the communication output termination of unit；
The driving unit（06）For：The instruction of reception control unit, driving output make the guarantor of electric point machine actuating circuit
Protect relay（BHJ）Action stops exporting the protection relay for making electric point machine actuating circuit when three-phase circuit breaks phase
Device（BHJ）Stopping acts；
The current sampling unit（01）For：Isolated sampling is carried out to three-phase circuit, and sampled data is sent to control
Unit processed is handled；
Described control unit（05）For：
1）Signal from current sampling unit is handled：It is aobvious including disconnected mutually judgement, branch supply management, alarm, information
Show, the detection of driving unit driving voltage；
2）After the startup of power supply module I, provides unlatching to power control module and electric control signal or stopping is taken to take electric control signal,
Realize the control to II working condition of power supply module；
The power supply module I（02）For：When goat starts action, taken from three-phase circuit by electric current power-supply circuit
Operating current is simultaneously converted into alternating voltage by electricity, it is rectified be converted into DC voltage after, unit, driving unit and power supply in order to control
Control module provides working power；
The power supply module II（03）For：After starting under the control of power control module, by voltage power-supply circuit from three
Phase alternating current circuit takes electricity, and the 380V power supplys of acquirement are converted to low AC voltage, it is rectified be converted into DC voltage after, for control
Unit, driving unit and power control module processed provide working power；
The power control module（04）For：After the startup of power supply module I, the unlatching provided according to control unit takes electric control
Signal or stopping take electric control signal, are switched on or switched off the connection for taking piezoelectric transformer primary and 380V power supplys of power supply module II,
To which the II two power supply module outputs of power supply module I and power supply module to be combined into the composite power supply system of a redundancy, it is
Control unit, driving unit and power control module provide working power.
2. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as described in claim 1, feature
It is：
Described control unit（05）Including processor（051）, comprehensive power circuit（052）, signal conditioning circuit（053）, driving
Voltage detecting circuit（054）, display circuit（055）, communicating circuit（056）And warning circuit（057）；
The processor（051）Pass through comprehensive power circuit（052）Power supply module I and power supply module II are connected, signal tune is passed through
Manage circuit（053）Connect current sampling unit（01）, pass through driving voltage detection circuit（054）Connect driving unit（06）, place
Manage device（051）It is separately connected power control module by the first, second control terminal（04）And driving unit（06）, processor
（051）Internal control terminal be separately connected display circuit（055）, communicating circuit（056）And warning circuit（057）, communicating circuit
（056）Output termination outside detecting instrument or system host；
The processor（051）For carrying out digital filtering, logical operation, power supply control, driving voltage to current sampling signal
Adjust automatically, Current Voltage are shown and controlling alarm and communication control；
The comprehensive power circuit（052）For giving each circuit inside control unit to provide working power；
The signal conditioning circuit（053）For being filtered, amplifying and carrying out to the current signal from current sampling unit
Current-voltage is converted, to obtain measurable voltage signal, the analog-digital converter being conveyed to inside processor；
The driving voltage detection circuit（054）Detected value is fed back to processor by the operating voltage for detecting driving unit,
Driving unit is adjusted according to value of feedback by processor, changes the output of driving voltage；
The display circuit（055）Working current value and driving voltage value for showing three-phase circuit；
The communicating circuit（056）For transmitting the electric current of this phase failure protector, electricity to external detecting instrument or system host
Pressure and work state information；
The warning circuit（057）For abnormal different to break phase, three-phase current unbalance, driving voltage of three-phase circuit
Reason condition is alarmed；
The power supply module I（02）Including electric current power-supply circuit, rectification circuit I and regulator circuit I；The electric current power-supply circuit is logical
The primary coil of overcurrent mutual inductor is connect with three-phase circuit, the input of electric current power-supply circuit output termination rectification circuit I
End, the input terminal of the output termination regulator circuit I of rectification circuit I, the output end of regulator circuit I unit, driving unit in order to control
Working power is provided with power control module；
The power supply module II（03）Including voltage power-supply circuit, rectification circuit II and regulator circuit II；The voltage takes electric
Road is by taking piezoelectric transformer and the normally opened contact of electric control relay being taken to be connect with three-phase circuit, the output of voltage power-supply circuit
Terminate rectification circuit II input terminal, rectification circuit II output termination regulator circuit II input terminal, regulator circuit II it is defeated
Unit, driving unit and power control module provide working power to outlet in order to control；
The power control module（04）Including taking electric control relay（KA）, it is described take electric control relay or be electromagnetism relay
Device is reed switch relay or is solid-state relay or is optical relay.
3. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as claimed in claim 2, feature
It is：The power supply module II（03）It is controlled power supply module, working method is intermittent duty or continuous work
Mode is to be controlled by control unit or directly controlled by circuit or timer control.
4. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as claimed in claim 3, feature
It is：
The power control module（04）Including taking electric control relay（KA), the 2nd electrolytic capacitor（C2）, the 3rd zener diode
（VD3）, the 8th diode（D8）, the 3rd resistance（R3）, the 4th resistance（R4）, the 5th resistance（R5）, the 6th resistance（R6）, the 3rd triode
（Q3）, the 4th triode（Q4）And field-effect tube（Q5）；
Field-effect tube（Q5）Source electrode and the 5th resistance（R5）One end be connected after and power supply module I and power supply module II first
Output end of powering connects, the 4th triode of another termination of field-effect tube gate pole and the 5th resistance（Q4）Collector, the 4th triode
（Q4）Emitter ground connection, the base stage of the 4th triode connects the 6th resistance（R6）, another termination control unit processor of the 6th resistance
（051）The first control terminal, receive open takes electric control signal or stopping take electric control signal；
Field-effect tube（Q5）Drain electrode, the 3rd resistance（R3）One end, the 3rd triode（Q3）Collector connects the 2nd electrolytic capacitor（C2）Just
Pole, the 3rd resistance（R3）The 3rd triode of another termination（Q3）Base stage and the 3rd zener diode（VD3）Backward end；
3rd triode（Q3）Emitter connects the 4th resistance（R4）One end, the 4th resistance the 2nd electrolytic capacitor of another termination（C2）Cathode
Afterwards, then with the backward end of the 8th diode and one end of electric control relay coil is taken to connect；
3rd zener diode（VD3）Forward end, the 8th diode（D8）Forward end, the 4th triode（Q4）Emitter and
The other end of electric control relay coil is taken to be grounded.
5. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as described in claim 1,2,3 or 4,
It is characterized in that：
The power supply module II（03）Voltage sample circuit include take piezoelectric transformer（T）, the 1st fuse（FU1）, it is the 1st pressure-sensitive
Resistance（RV1）With take electric control relay（KA）Normally opened contact；
1st varistor（RV1）Both ends, which are connected in parallel on, takes piezoelectric transformer primary both ends, and wherein one end is connected to one phase of three phase mains again,
The other end and the 1st fuse and normally opened contact one end of electric control relay is taken to connect, takes electric control relay normally open contact another
One end is connected with another phase of three phase mains, the input terminal for the two termination rectification circuits II for taking piezoelectric transformer secondary；
The rectification circuit II of the power supply module II includes the 1st rectifier bridge（BRⅠ1）With the 1st electrolytic capacitor（C1）, the 1st rectifier bridge
Two ac terminals be connected with two output ends of voltage power-supply circuit, the 1st cathode rectifier output termination the 1st electrolytic capacitor
The input terminal of anode and regulator circuit II, cathode output end ground connection；
The regulator circuit II of the power supply module II includes the 1st resistance（R1）, the 1st two-way Transient Suppression Diode（TVS1）, the 1st
Zener diode（VD1）, the 1st diode（D1）, the 2nd diode（D2）With the 1st triode（Q1）；
1st two-way Transient Suppression Diode one end, the 1st resistance one end, the 1st transistor collector and the 1st diode forward end
Connect the 1st cathode rectifier output end, reversed the 1st transistor base of termination of the 1st resistance other end and the 1st zener diode, the 1st pair
It is grounded to the Transient Suppression Diode other end, the 1st zener diode forward end；
The emitter of 1st triode connects the forward end of the 2nd diode, the 2nd diode backward end as the second power supply output end, to
Driving unit is powered, and the collector of the 1st triode connects the forward end of the 1st diode, and the backward end of the 1st diode is supplied as first
Electricity output end powers to control unit and power control module.
6. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as claimed in claim 5, feature
It is：The power supply module I（02）Including the first electric current power-supply circuit, the first rectification circuit I and regulator circuit I；
The first electric current power-supply circuit includes the 1st current transformer（CT1）, the 2nd varistor（RV2）With the 2nd fuse
（FU2）, a wherein phase for the primary side access three-phase circuit of the 1st current transformer, the 2nd fuse and the 1st Current Mutual Inductance
The input terminal of two output the first rectification circuits I of termination of the first electric current power-supply circuit, the 2nd pressure-sensitive electricity are constituted after the series connection of device secondary side
Resistance is connected in parallel between two output ends of the first electric current power-supply circuit；
First rectification circuit I includes the 2nd rectifier bridge（BRⅠ2）, the 3rd electrolytic capacitor（C3）Inhibit two poles with the 2nd two-way transient state
Pipe（TVS2）, two ac terminals of the 2nd rectifier bridge are connected with two output ends of the first electric current power-supply circuit, the 2nd rectifier bridge
The input terminal of anode termination the 3rd electrolytic capacitor anode and the 2nd two-way Transient Suppression Diode one end as regulator circuit I, the 3rd electricity
Solve capacitance cathode ground connection；
The regulator circuit I includes the 2nd resistance（R2）, the 2nd three pole（Q2）, the 3rd diode（D3）With the 4th diode（D4）；
2nd two-way Transient Suppression Diode one end, the 2nd resistance one end, the 2nd transistor collector and the 4th diode forward end
Connect the 2nd cathode rectifier output end, reversed the 2nd transistor base of termination of the 2nd resistance other end and the 2nd zener diode, the 2nd
The two-way Transient Suppression Diode other end, the 2nd zener diode forward end ground connection；
The emitter of 2nd triode connects the forward end of the 3rd diode, and the 3rd diode reversely terminates the second confession of power supply module II
Electricity output end powers to driving unit, and the collector of the 2nd triode connects the forward end of the 4th diode, the 4th diode it is reversed
The power supply output end of power supply module II first is terminated, is powered to control unit and power control module.
7. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as claimed in claim 6, feature
It is：The power supply module I（02）Further include the second electric current power-supply circuit and the second rectification circuit I；
The second electric current power-supply circuit includes the 2nd current transformer（CT2）, the 3rd varistor（RV3）With the 3rd fuse
（FU3）, another phase of the primary side access three-phase circuit of the 2nd current transformer, the 3rd fuse and the 2nd current transformer
The input terminal of two output the second rectification circuits I of termination of the second electric current power-supply circuit, the 3rd varistor are constituted after secondary side series connection
It is connected in parallel between two output ends of the second electric current power-supply circuit；
Second rectification circuit I includes the 3rd rectifier bridge（BRI3）, the 4th electrolytic capacitor（C4）Inhibit two poles with the 3rd two-way transient state
Pipe（TVS3）, two ac terminals of the 3rd rectifier bridge are connected with two output ends of the second electric current power-supply circuit, the 3rd rectifier bridge
The input terminal of anode termination the 4th electrolytic capacitor anode and the 3rd two-way Transient Suppression Diode one end as regulator circuit I, the 4th electricity
Solve capacitance cathode ground connection；
The 5th diode is concatenated between first rectification circuit I and regulator circuit I（D5）, the second rectification circuit I and regulator circuit I it
Between concatenate the 6th diode（D6）.
8. a kind of three-phase alternating current electric rotating rut machine phase failure protector of controllable composite power supply as claimed in claim 7, feature
It is：The power supply module I（02）Further include third electric current power-supply circuit and third rectification circuit I；
The third electric current power-supply circuit includes the 3rd current transformer（CT3）, the 4th varistor（RV4）With the 4th fuse
（FU4）, another phase of the primary side access three-phase circuit of the 3rd current transformer, the 4th fuse and the 3rd current transformer
The input terminal of two output termination third rectification circuits I of third electric current power-supply circuit, the 4th varistor are constituted after secondary side series connection
It is connected in parallel between two output ends of third electric current power-supply circuit；
The third rectification circuit I includes the 4th rectifier bridge（BRⅠ4）, the 5th electrolytic capacitor（C5）Inhibit two poles with the 4th two-way transient state
Pipe（TVS4）, two ac terminals of the 4th rectifier bridge are connected with two output ends of third electric current power-supply circuit, the 4th rectifier bridge
The input terminal of anode termination the 5th electrolytic capacitor anode and the 4th two-way Transient Suppression Diode one end as regulator circuit I, the 5th electricity
Solve capacitance cathode ground connection；
The 7th diode is concatenated between third rectification circuit I and regulator circuit I（D7）.
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| CN108711931B (en) | 2023-08-18 |
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