CN106712276B - A kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit - Google Patents
A kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit Download PDFInfo
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- CN106712276B CN106712276B CN201710014064.0A CN201710014064A CN106712276B CN 106712276 B CN106712276 B CN 106712276B CN 201710014064 A CN201710014064 A CN 201710014064A CN 106712276 B CN106712276 B CN 106712276B
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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
Abstract
A kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit, the major-minor machine start-up circuit of intermediate frequency power supply is connected using many-contact relay, and make relay self-sustaining, the output that the major-minor machine of intermediate frequency power supply is controlled using another group of many-contact relay enables circuit, the status contacts that slave enables the control contact and host of circuit are passed in the enabled circuit of host, the status contacts that host enables the control contact and slave of circuit have been passed in the enabled circuit of slave, the ena-bung function of the major-minor machine circuit structure that just forms interlocking-type in this way, it can reliably avoid the problem that major-minor machine is in parallel while exporting, intermediate frequency power supply can be made to nonserviceable the enabled of lower automatic disconnection failure machine, ensure system power supply safety.
Description
Technical field
The present invention relates to a kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuits, are applied to carrier rocket electrical system
Intermediate frequency power supply.
Background technique
At present the servo mechanism motor of in-service carrier rocket in the ground test stage and before penetrating startup stage by ground
Frequency power power supply, intermediate frequency power supply use the frequency converter based on vector control technology for core component, export Three-phase SPWM alternating current
The full load of pressure realization servo motor reliably starts and high-efficiency operation,
380V 50Hz three-phase alternating voltage is become 300V~380V 400Hz intermediate frequency SPWM waveform alternating current by intermediate frequency power supply
It presses (line voltage), to improve reliability, using the major-minor machine operating mode of 1:1 backup.
Since alternating voltage can not carry out directly used in parallel, automatic Redundancy Management switching route is devised, is realized once
Under failure major-minor machine can automatic seamless switching, while ensuring that two frequency converters cannot export simultaneously, ensure that equipment and load
Safety.
Summary of the invention
Technology of the invention solves the problems, such as: having overcome the deficiencies of the prior art and provide a kind of interlocking-type intermediate frequency power supply master
Slave automatic switch-over circuit realizes that once major-minor machine being capable of automatic seamless switching under failure, it is ensured that in any case, intermediate frequency power supply
Major-minor machine the case where being all not in while exporting, ensure that the safety of equipment and load.
The technical solution of the invention is as follows:
A kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit, comprising: accessory power supply, diode V1~V8, relay
Device K1~K4, double-contact button switch SB1~SB4；
The first branch is connected between accessory power supply positive and negative anodes, which is the double-contact button switch being sequentially connected in series
First group of contact of SB1, first group of normally-closed contact of double-contact button switch SB3, the line packet of relay K1 and relay K2
Normally-closed contact；After the normally opened contact of relay K3 is connected with diode V1, then be parallel to the SB1 first group of contact two
Side；The both ends parallel diode V5 of the line packet of relay K1；
Second branch is connected between accessory power supply positive and negative anodes, which is to be sequentially connected in series double-contact button switch
Second group of normally-closed contact of second group of contact of SB1, the line packet of relay K3 and double-contact button switch SB3；Relay K3
Normally opened contact connect with diode V2 after, then be parallel to the two sides of second group of contact of the SB1；The line packet of relay K3
Both ends parallel diode V6；
Third branch is connected between accessory power supply positive and negative anodes, which is to be sequentially connected in series double-contact button switch
First group of contact of SB2, first group of normally-closed contact of double-contact button switch SB4, the line packet of relay K2 and relay K1
Normally-closed contact；After the normally opened contact of relay K4 is connected with diode V3, then be parallel to the SB2 first group of contact two
Side；The both ends parallel diode V7 of the line packet of relay K2；
The 4th branch is connected between accessory power supply positive and negative anodes, the 4th branch is to be sequentially connected in series double-contact button switch
Second group of normally-closed contact of second group of contact of SB2, the line packet of relay K4 and double-contact button switch SB4；Relay K4
Normally opened contact connect with diode V2 after, then be parallel to the two sides of second group of contact of the SB2；The line packet of relay K4
Both ends parallel diode V8；
The starting electricity of the third group normally opened contact of series relay K3 and electric power host between accessory power supply positive and negative anodes
Road, the third group normally opened contact of series relay K4 and the start-up circuit of power supply slave between accessory power supply positive and negative anodes,
The output of the second group of normally opened contact and electric power host of series relay K1 enables circuit between accessory power supply positive and negative anodes, auxiliary
The output of the second group of normally opened contact and power supply slave that help series relay K2 between power positive cathode enables circuit.
The double-contact button switch refers to tool, and there are two the switches of linkage contact.
The normally opened contact of the anode connection relay K3 of the diode V1, the anode of diode V5 are connected to relay K2
Normally-closed contact.
The diode V2 anode connection relay K3 normally opened contact, the anode of diode V6 be connected to double-contact by
The normally-closed contact of button switch SB3.
The normally opened contact of the anode connection relay K4 of the diode V3, the anode of diode V7 are connected to relay K1
Normally-closed contact.
The diode V4 anode connection relay K4 normally opened contact, the anode of diode V8 be connected to double-contact by
The normally-closed contact of button switch SB4.
It further include Host Status contact in the first branch, which is connected to double-contact button switch
Between first group of normally-closed contact of SB3 and the line packet of relay K1, for the working condition of power source-responsive host, work as electric power host
When failure, which is disconnected.
It further include slave status contacts in the third branch, which is connected to double-contact button switch
Between first group of normally-closed contact of SB4 and the line packet of relay K2, for the working condition of power source-responsive slave, when power supply slave
When failure, which is disconnected.
Compared with the prior art, the invention has the advantages that:
(1) circuit of the present invention is sufficiently applied in certain carrier space vehicle control system, by the items of development stage
Experiment examination, it is correct feasible, it can be realized intermediate frequency power supply major-minor machine and be switched fast automatically, work in handoff procedure servo mechanism
Without influence.
(2) interlock protection condition is sealed in the enabled control circuit of the major-minor machine of intermediate frequency power supply, it can be ensured that any
In the case of the case where being not in major-minor machine while enabled output.
(3) status contacts of major-minor machine are sealed in the enabled control circuit of the major-minor machine of intermediate frequency power supply, it can be ensured that therefore
Automatically the enabled output of failure machine is disconnected under barrier state.
Detailed description of the invention
Fig. 1 is intermediate frequency power supply major-minor machine automatic switching control circuit figure of the present invention.
Specific embodiment
A specific embodiment of the invention is further described in detail with reference to the accompanying drawing.
At present the servo mechanism motor of in-service carrier rocket in the ground test stage and before penetrating startup stage by ground
Frequency power power supply, intermediate frequency power supply use the frequency converter based on vector control technology for core component, export Three-phase SPWM alternating current
The full load of pressure realization servo motor reliably starts and high-efficiency operation,
380V 50Hz three-phase alternating voltage is become 300V~380V 400Hz intermediate frequency SPWM waveform alternating current by intermediate frequency power supply
It presses (line voltage), to improve reliability, using the major-minor machine operating mode of 1:1 backup.
Since alternating voltage can not carry out directly used in parallel, automatic Redundancy Management switching route is devised, is realized once
Under failure major-minor machine can automatic seamless switching, while ensuring that two frequency converters cannot export simultaneously, ensure that equipment and load
Safety.
As shown in Figure 1, the invention proposes a kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuits, comprising: auxiliary
Power supply, diode V1~V8, relay K1~K4, double-contact button switch SB1~SB4；
The first branch is connected between accessory power supply positive and negative anodes, which is the double-contact button switch being sequentially connected in series
First group of contact of SB1, first group of normally-closed contact of double-contact button switch SB3, the line packet of relay K1 and relay K2
Normally-closed contact；After the normally opened contact of relay K3 is connected with diode V1, then be parallel to the SB1 first group of contact two
Side；The both ends parallel diode V5 of the line packet of relay K1；
Second branch is connected between accessory power supply positive and negative anodes, which is to be sequentially connected in series double-contact button switch
Second group of normally-closed contact of second group of contact of SB1, the line packet of relay K3 and double-contact button switch SB3；Relay K3
Normally opened contact connect with diode V2 after, then be parallel to the two sides of second group of contact of the SB1；The line packet of relay K3
Both ends parallel diode V6；
Third branch is connected between accessory power supply positive and negative anodes, which is to be sequentially connected in series double-contact button switch
First group of contact of SB2, first group of normally-closed contact of double-contact button switch SB4, the line packet of relay K2 and relay K1
Normally-closed contact；After the normally opened contact of relay K4 is connected with diode V3, then be parallel to the SB2 first group of contact two
Side；The both ends parallel diode V7 of the line packet of relay K2；
The 4th branch is connected between accessory power supply positive and negative anodes, the 4th branch is to be sequentially connected in series double-contact button switch
Second group of normally-closed contact of second group of contact of SB2, the line packet of relay K4 and double-contact button switch SB4；Relay K4
Normally opened contact connect with diode V2 after, then be parallel to the two sides of second group of contact of the SB2；The line packet of relay K4
Both ends parallel diode V8；
The starting electricity of the third group normally opened contact of series relay K3 and electric power host between accessory power supply positive and negative anodes
Road, the third group normally opened contact of series relay K4 and the start-up circuit of power supply slave between accessory power supply positive and negative anodes,
The output of the second group of normally opened contact and electric power host of series relay K1 enables circuit between accessory power supply positive and negative anodes, auxiliary
The output of the second group of normally opened contact and power supply slave that help series relay K2 between power positive cathode enables circuit.
In the present invention, double-contact button switch refers to tool there are two the switch of linkage contact, and relay K1~K4 is 4 groups
The relay of contact.
The normally opened contact of the anode connection relay K3 of diode V1, the anode of diode V5 are connected to the normal of relay K2
Closed contact.The normally opened contact of the anode connection relay K3 of diode V2, the anode of diode V6 are connected to double-contact button and open
Close the normally-closed contact of SB3.The normally opened contact of the anode connection relay K4 of diode V3, the anode of diode V7 are connected to relay
The normally-closed contact of device K1.The normally opened contact of the anode connection relay K4 of diode V4, the anode of diode V8 are connected to double touchings
The normally-closed contact of point button switch SB4.
It further include Host Status contact in the first branch, which is connected to double-contact button switch SB3's
Between first group of normally-closed contact and the line packet of relay K1, for the working condition of power source-responsive host, when electric power host occurs
When failure, which is disconnected.
It further include slave status contacts in third branch, which is connected to double-contact button switch SB4's
Between first group of normally-closed contact and the line packet of relay K2, for the working condition of power source-responsive slave, when power supply slave occurs
When failure, which is disconnected.
Working principle:
Intermediate frequency power supply major-minor machine is switched fast schematic circuit automatically and sees that attached drawing 1, SB1 and SB2 are that respectively major-minor machine opens
Dynamic control button, SB3 and SB4 are respectively the stopping control button of major-minor machine, and K1 and K2 are main slave output control relay, K3
It is respectively major-minor machine starting control relay with K4, V1~V8 is diode, and major-minor machine status contacts are intermediate frequency power supply major-minor machine
State-indicating switch, under normal circumstances the contact connect, intermediate frequency power supply break down or be in guard mode when, the contact
It disconnects.
After intermediate frequency power supply booting, SB1 and SB2 are in turn switched on, then K1, K3 and K4 work, and K3 and K4 are in self-insurance state, main
The working condition of slave is that main slave all starts, and the connection of K1 ensures that K2 is not turned on, and host output is enabled, and slave exports not
Enabled, host work is the power supply of servo mechanism motor, if abnormal, Host Status contact disconnection, K1 power-off, K2 occurs in host
Automatic work realizes that major-minor machine automatically switches under fault condition so that slave output is enabled.
If in turn switching on SB2 and SB1, K2, K3 and K4 work, K3 and K4 are in self-insurance state, the work of major-minor machine
State is that main slave all starts, and slave output is enabled, and host output does not enable, and slave work is that servo mechanism motor is powered, such as
There is abnormal, then slave status contacts disconnection, K2 power-off in fruit slave, and K1 automatic work realizes failure so that host output is enabled
In the case of major-minor machine automatically switch.
Embodiment:
The present invention succeeds application in the power supply-distribution system of the servo mechanism motor of certain Large Launch Vehicle, major-minor machine
The mode of redundancy of effort ensure that the functional reliability of servo mechanism power supply, major-minor machine control circuit ensure servo mechanism motor
With intermediate frequency power supply job security, succeeding in sending up and flying and successfully established good technical foundation for rocket.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (2)
1. a kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit, feature include: accessory power supply, diode V1~
V8, relay K1~K4, double-contact button switch SB1~SB4；
The first branch is connected between accessory power supply positive and negative anodes, which is the double-contact button switch SB1 being sequentially connected in series
First group of contact, first group of normally-closed contact of double-contact button switch SB3, the line packet of relay K1 and relay K2 it is normally closed
Contact；After the normally opened contact of relay K3 is connected with diode V1, then it is parallel to the two sides of first group of contact of the SB1；After
The both ends parallel diode V5 of the line packet of electric appliance K1；
Second branch is connected between accessory power supply positive and negative anodes, which is to be sequentially connected in series double-contact button switch SB1
Second group of normally-closed contact of second group of contact, the line packet of relay K3 and double-contact button switch SB3；Relay K3's is normally opened
After contact is connected with diode V2, then it is parallel to the two sides of second group of contact of the SB1；The both ends of the line packet of relay K3 are simultaneously
Union II pole pipe V6；
Third branch is connected between accessory power supply positive and negative anodes, which is to be sequentially connected in series double-contact button switch SB2
First group of contact, first group of normally-closed contact of double-contact button switch SB4, relay K2 line packet and relay K1 normally closed touching
Point；After the normally opened contact of relay K4 is connected with diode V3, then it is parallel to the two sides of first group of contact of the SB2；Relay
The both ends parallel diode V7 of the line packet of device K2；
The 4th branch is connected between accessory power supply positive and negative anodes, the 4th branch is to be sequentially connected in series double-contact button switch SB2
Second group of normally-closed contact of second group of contact, the line packet of relay K4 and double-contact button switch SB4；Relay K4's is normally opened
After contact is connected with diode V2, then it is parallel to the two sides of second group of contact of the SB2；The both ends of the line packet of relay K4 are simultaneously
Union II pole pipe V8；
The third group normally opened contact of series relay K3 and the start-up circuit of electric power host between accessory power supply positive and negative anodes,
The third group normally opened contact of series relay K4 and the start-up circuit of power supply slave between accessory power supply positive and negative anodes, in auxiliary electricity
The output of the second group of normally opened contact and electric power host of series relay K1 enables circuit between the positive and negative anodes of source, in accessory power supply
The output of second group of normally opened contact of series relay K2 and power supply slave enables circuit between positive and negative anodes；
It further include Host Status contact in the first branch, which is connected to double-contact button switch SB3's
Between first group of normally-closed contact and the line packet of relay K1, for the working condition of power source-responsive host, when electric power host occurs
When failure, which is disconnected；
It further include slave status contacts in the third branch, which is connected to double-contact button switch SB4's
Between first group of normally-closed contact and the line packet of relay K2, for the working condition of power source-responsive slave, when power supply slave occurs
When failure, which is disconnected；
The normally opened contact of the anode connection relay K3 of the diode V1, the anode of diode V5 are connected to the normal of relay K2
Closed contact；
The normally opened contact of the anode connection relay K3 of the diode V2, the anode of diode V6 are connected to double-contact button and open
Close the normally-closed contact of SB3；
The normally opened contact of the anode connection relay K4 of the diode V3, the anode of diode V7 are connected to the normal of relay K1
Closed contact；
The normally opened contact of the anode connection relay K4 of the diode V4, the anode of diode V8 are connected to double-contact button and open
Close the normally-closed contact of SB4；
After intermediate frequency power supply booting, SB1 and SB2 are in turn switched on, then K1, K3 and K4 work, and K3 and K4 are in self-insurance state, major-minor machine
Working condition be that main slave all starts, the connection of K1 ensures that K2 is not turned on, and host output is enabled, and slave output does not make
Can, host work is that servo mechanism motor is powered, if exception occurs in host, Host Status contact is disconnected, and K1 power-off, K2 is certainly
It starts building to make, so that slave output is enabled, realizes that major-minor machine automatically switches under fault condition；
If in turn switching on SB2 and SB1, K2, K3 and K4 work, K3 and K4 are in self-insurance state, the working condition of major-minor machine
All start for main slave, slave output is enabled, and host output does not enable, and slave work is that servo mechanism motor is powered, if secondary
There is abnormal, then slave status contacts disconnection, K2 power-off in machine, and K1 automatic work realizes fault condition so that host output is enabled
Lower major-minor machine automatically switches.
2. a kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit according to claim 1, feature is including:
State double-contact button switch refer to tool there are two linkage contact switch.
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| CN201710014064.0A CN106712276B (en) | 2017-01-09 | 2017-01-09 | A kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710014064.0A CN106712276B (en) | 2017-01-09 | 2017-01-09 | A kind of interlocking-type intermediate frequency power supply major-minor machine automatic switch-over circuit |
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| CN106712276A CN106712276A (en) | 2017-05-24 |
| CN106712276B true CN106712276B (en) | 2019-09-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109100971B (en) * | 2018-08-20 | 2024-02-09 | 合肥华耀电子工业有限公司 | On-off time sequence control circuit with interlocking function |
| CN112134285A (en) * | 2020-11-25 | 2020-12-25 | 蓝箭航天空间科技股份有限公司 | Ground redundant power supply system and method for space carrier |
| CN113452134A (en) * | 2021-06-25 | 2021-09-28 | 山东航天电子技术研究所 | Remote control unit is at high reliable outage remove device of rail anomaly |
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| CN103595122A (en) * | 2013-11-29 | 2014-02-19 | 天津铁路信号有限责任公司 | Hot standby switching reliability improving circuit for 25Hz power supply |
| CN204721079U (en) * | 2015-04-20 | 2015-10-21 | 北京航天自动控制研究所 | Dual-power automatic switching and charging circuit |
| CN105610238A (en) * | 2016-02-04 | 2016-05-25 | 北京宇航系统工程研究所 | Redundant architecture-based power distribution system and power distribution method for intelligent network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212147B (en) * | 2006-12-26 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Power voltage supply circuit |
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2017
- 2017-01-09 CN CN201710014064.0A patent/CN106712276B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595122A (en) * | 2013-11-29 | 2014-02-19 | 天津铁路信号有限责任公司 | Hot standby switching reliability improving circuit for 25Hz power supply |
| CN204721079U (en) * | 2015-04-20 | 2015-10-21 | 北京航天自动控制研究所 | Dual-power automatic switching and charging circuit |
| CN105610238A (en) * | 2016-02-04 | 2016-05-25 | 北京宇航系统工程研究所 | Redundant architecture-based power distribution system and power distribution method for intelligent network |
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