CN107769370A - A kind of solid state switch based on diode series-parallel connection bridge - Google Patents
A kind of solid state switch based on diode series-parallel connection bridge Download PDFInfo
- Publication number
- CN107769370A CN107769370A CN201711010693.2A CN201711010693A CN107769370A CN 107769370 A CN107769370 A CN 107769370A CN 201711010693 A CN201711010693 A CN 201711010693A CN 107769370 A CN107769370 A CN 107769370A
- Authority
- CN
- China
- Prior art keywords
- switch
- diode
- circuit
- power supply
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
-
- 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
-
- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
Abstract
The present invention proposes a kind of solid-state switching circuits based on diode series-parallel connection bridge, recloser and its power supply switch protecting system.Wherein, the solid-state switching circuits include forward circuit and negater circuit, and the forward circuit and negater circuit include gate-controlled switch circuit and anti-paralleled diode.The solid-state switching circuits based on diode series-parallel connection bridge, recloser and its power supply switch protecting system of the present invention, there is the characteristics of easy to control, can be switched fast, and simple for structure, dependable performance.
Description
Technical field
The present invention relates to electric and electronic technical field, more particularly to a kind of solid state switch electricity based on diode series-parallel connection bridge
Road, converting switch device.
Background technology
The current general break-make that electric power is all controlled using mechanical switch device.As switching device is widely used in respectively
In each industry of row, the also more and more higher of the requirement to switch now.
And diode is a kind of common electronic component, it has been also applied in switch.The most common function of diode is exactly
Only allow electric current to be flowed through by single direction, that is, negative electrode (also referred to as negative pole) is flowed to from anode (also referred to as positive pole), and when reverse
Electric current is formed and blocked.Due to this characteristic of diode, it is widely applied in electronic circuit.Present diode should
Use in a variety of circuits, such as in amplitude limiter circuit, on-off circuit.Existing diode switching circuit is as shown in Figure 1.It is but this
Diode switching circuit is generally suitable in DC circuit, and can not be realized controllable.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of succinct reliable and stability is high based on diode
Solid-state switching circuits, switching switch and its power supply switch protecting system of series-parallel connection bridge.
The invention provides a kind of solid-state switching circuits based on diode series-parallel connection bridge, it is characterised in that
The solid-state switching circuits include forward circuit and negater circuit, and the forward circuit and negater circuit include two
Pole pipe；
The forward circuit and the negater circuit share a gate-controlled switch circuit and anti-paralleled diode.
Further, the gate-controlled switch circuit includes electronic power switch.
Further, the electronic power switch is any one in IGCT, IGBT, IGCT or GTO.
Further, the forward circuit include the first diode, the 3rd diode, the negative electrode of first diode with
The first end connection of the gate-controlled switch circuit, the anode of the 3rd diode connect with the second end of the gate-controlled switch circuit
Connect；
The negater circuit include the second diode, the 4th diode, the negative electrode of second diode with it is described controllable
The first end connection of on-off circuit, the anode of the 4th diode are connected with the second end of the gate-controlled switch circuit.
Present invention also offers a kind of automatic transfer switch device, it is characterised in that the automatic transfer switch device bag
Main switching switch block and standby switching switch block are included, wherein,
The main switching switch block includes three as above any described electricity of the solid-state switch based on diode series-parallel connection bridge
Road, it is respectively used in the A phase, B phase, C phase branch road of three-phase electricity；
The standby switching switch block includes three as above any described electricity of the solid-state switch based on diode series-parallel connection bridge
Road, it is respectively used in the A phase, B phase, C phase branch road of three-phase electricity.
Present invention also offers a kind of power supply switch protecting system, it is characterised in that
The power protection switching system includes：
Working power and stand-by power supply；
Automatic transfer switch device as described above, main switching switch block and work in the automatic transfer switch device
Make power supply connection, standby switching switch block is connected with stand-by power supply；
Monitoring system, the working condition for monitoring power supply and/or stand-by power supply；
Control protection system, for controlling each main switching switch and/or standby switching in the automatic transfer switch device
The break-make of the gate-controlled switch branch road of on-off circuit in switch.
Further, the monitoring system is additionally operable to the information of the working condition being sent to the control protection system
System, the Control protection system according to described information control the automatic transfer switch device in the main switching switch block and
Switch between standby switching switch block.
Further, the monitoring system also detects the switch closing and switch opening state of the automatic transfer switch, and by described in
The feedback of the information of state gives the Control protection system.
The solid-state switching circuits based on diode series-parallel connection bridge, recloser and its power supply switch protecting system of the present invention
System, there is the characteristics of easy to control, can be switched fast, and simple for structure, dependable performance.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 shows diode switching circuit structural representation in the prior art；
Fig. 2 shows the solid-state switching circuits structural representation based on diode series-parallel connection bridge of the embodiment of the present invention；
Fig. 3 shows the solid-state switch automatic transfer switch device according to embodiments of the present invention based on diode series-parallel connection bridge
Structural representation；
Fig. 4 shows dual power supply redundancy electric power system structural representation according to embodiments of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely illustrated, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The switching switch of the present invention employs the solid-state switching circuits based on diode series-parallel connection bridge.The embodiment of the present invention is to cut
Change it is illustrative exemplified by on-off circuit, but it should be recognized by those skilled in the art that without departing from the basic of the present invention
In the case of inventive concept, switching switch, all on-off circuits that can realize connecting and disconnecting of the circuit such as breaker, element, part, set
The present invention is can be achieved in standby, system etc., and these are belonged in protection scope of the present invention.
As shown in Fig. 2 the solid-state switching circuits based on diode series-parallel connection bridge include multiple diode D1, D2, D3,
D4, D5 and electronic power switch S.Diode D1 negative electrode switchs S first end, diode D2 negative electrode, two with electron electric power
Pole pipe D5 negative electrode connection；Diode D4 anode current power switch S the second end, diode D3 anode, diode D5
Anode connection；Diode D1 anode is connected with diode D4 negative electrode, diode D2 anode and diode D3 negative electrode
Connection.Gate-controlled switch circuit also have with its antiparallel diode D5, be the reverse through-current capability of controllable offer.
In the case where the electronic power switch S is connected, diode D1, electronic power switch S, diode D3 form one
Bar path, forward current enter in the path from diode D1 anode, and are flowed out from diode D3 negative electrode；Diode D2,
Electronic power switch S, diode D4 form a path, and reverse current enters in the path from diode D2 anode, and from
Diode D4 negative electrode outflow.
In the case where the electronic power switch S disconnects, only allow what electric current single direction flowed through due to diode
Characteristic, electric current can not pass through the solid-state switching circuits based on diode series-parallel connection bridge.Therefore, opened in the disconnection power electronics
In the case of closing S, electric current is shut off.
The electronic power switch S can select IGCT, IGBT (Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor), IGCT (integrated Gate Commutated Thyristors, collection
Into door pole stream-exchanging thyristor) or GTO (Gate-Turn-OffThyristor, gate level turn-off thyristor) etc. any one.
Can be by controlling above-mentioned electronic power switch S break-make to realize the break-make of the solid-state switching circuits based on diode series-parallel connection bridge.
Embodiment additionally provides a kind of switch block, and which employs the above-mentioned solid-state switch electricity based on diode series-parallel connection bridge
Road.The switch block is used in three-phase alternating current system, and the circuit of each phase is respectively adopted above-mentioned based on coupling negative pressure circuit
Composite switch circuit.As shown in figure 3, the switch block employs in A phase, B phase, C phase above-mentioned be based on diode respectively
The solid-state switching circuits of series-parallel connection bridge：A phase, B phase, C phase in main switching switch block is (for the three-phase with standby switching switch in figure
Line is distinguished, and A1, B1, C1 represent A phase, B phase, C phase line) employ the above-mentioned solid-state switch electricity based on diode series-parallel connection bridge
Road；(in order to be distinguished with the triple line of main switching switch in figure, A2, B2, C2 come A phase, B phase, C phase in standby switching switch block
Represent A phase, B phase, C phase line) equally employ the above-mentioned solid-state switching circuits based on diode series-parallel connection bridge.
As shown in figure 3, embodiment additionally provides a kind of automatic transfer switch device, the automatic transfer switch device includes
Two above-mentioned switch blocks, switch based on one of them switch block, another be standby switching switch block.Course of normal operation
In, the main switching switch block conducting, realize that power supply provides electric current by the main switching switch block to the load；Institute
Standby switching switch block is stated to disconnect.Breaking down needs power supply being switched to standby switching switch block from main switching switch block
When, the main switching switch block is disconnected by above-mentioned separating brake control process, and by described in the connection of above-mentioned shutting-brake control process
Standby switching switch block.
The present embodiment with dual power supply redundancy electric power system come illustrate it is above-mentioned based on coupling the hybrid of negative pressure circuit cut automatically
The control for changing switching device uses.But it should be clear that above-described embodiment based on coupling negative pressure circuit it is hybrid from
Dynamic converting switch device is not limited in dual power supply redundancy electric power system, and more power supply redundancy electric power systems and in general are such as single
Electric supply system, it can use power system of switch etc. can be using electric based on coupling negative pressure described in above-described embodiment
The hybrid automatic transfer switch device on road.
Dual power supply redundancy electric power system structural representation according to embodiments of the present invention as shown in Figure 4.The dual power supply
Electric power system includes power supply, Control protection system, automatic transfer switch device, load and is made up of monitoring components such as sensors
Monitoring system, wherein power supply includes two sets of power supplys of working power and stand-by power supply, the master in the automatic transfer switch device
Switching switch block is connected with working power, standby switching switch block is connected with stand-by power supply.The dual power supply redundancy power supply system
The standby switching switch block on main switching switch block and/or stand-by power supply branch road in system on working power branch road can make
With the solid-state automatic transfer switch part based on diode series-parallel connection bridge described in above-described embodiment.The present embodiment is with working power branch
On road switching switch and stand-by power supply branch road on switching switch using it is above-mentioned based on coupling negative pressure circuit it is hybrid from
It is illustrative exemplified by dynamic switching switch block.
Dual power supply redundancy electric power system is under normal power supply state, working power branch road in the automatic transfer switch device
Main switching switch block in all on-off circuits (on-off circuit namely on A, B, C phase line) be in closed form
State, the electric power of working power are supplied to the load by the converting switch device；And in the automatic transfer switch device
All on-off circuits (on-off circuit namely on A, B, C phase line) in the standby switching switch block of stand-by power supply branch road are equal
It is off, the stand-by power supply does not provide electric power to the load.
The monitoring system continues or periodically monitored the working condition of whole electric power system, such as the abnormal feelings in system
Condition：Sensor monitoring in the working condition of Sensor monitoring working power in working power branch road, stand-by power supply branch road is standby
With the working condition of the Sensor monitoring load in the working condition of power supply, load branch circuit.
When the monitoring system detects working power failure or excessive pressure drop, corresponding event is sent to Control protection system
Hinder signal.Control protection system judges work after the expression working power out of order signal that monitoring system is sent is received
Make power supply to break down, it is necessary to which power supply is switched on stand-by power supply from working power.Now, the control in Control protection system
Switching switch block of the unit to working power sends separating brake order and the switching switch block to stand-by power supply sends life of closing a floodgate
Order, so as to control the switching switch block of working power to disconnect, and control stand-by power supply switching switch block close with
The electrical connection established between stand-by power supply and load, so as to provide electric power by stand-by power supply case load.
During normal operation, A phases, B phases are in connecting with the electronic power switch S in C phase lines in main switching switch block
State, the electric current in each phase line provide electric power by main switching switch block to load.In Sensor monitoring to working power
When breaking down, warning message is sent to Control protection system.After receiving the warning message, the control in Control protection system
Electronic power switch S of the unit processed into the automatic transfer switch device sends ON- and OFF- command；Simultaneously to standby switching switch
Electronic power switch S sends connection order, and now electric current flows through standby switching switch block, and load is by standby switching switch power supply.
Electric power is provided in the dual power supply redundancy electric power system from stand-by power supply to load to be switched to from working power to institute
State load the process of electric power is provided and be switched to from stand-by power supply to the load and provide with providing electric power from working power to load
The process of electric power is similar, will not be repeated here.
Sensor in load branch circuit can send the fault message monitored after monitoring that the load breaks down
To Control protection system.The Control protection system can close working power branch road and stand-by power supply according to the fault message
Switching switch block in branch road, powered with disconnecting any power supply to the load.
The monitoring system detects switching and cut-offs state simultaneously, and status information feedback is returned into the Control protection system,
To ensure to cut-off and turn on.
Control protection system always according to reception control of the information realization to other interconnection switches or receive other contacts and open
The status information of pass, and all information of reception are sent to remote computer, while letter can be received from remote computer
Breath, such as the related switching switch of control carry out the information of closure or openness.
It is illustrative by taking three-phase alternating current as an example in embodiment, but it should be recognized by those skilled in the art that
In the case of basic inventive concept of the invention, on-off circuit of the invention, switching device, system and its control method
It is not limited in the three-phase alternating current based on exemplary illustration purpose in specification, on-off circuit of the invention, switching device, is
System and its control method are suitable for the including but not limited to system of direct current and alternating current.
It should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.Front and rear two
Do not necessarily imply that it must is a kind of order of priority execution between individual step, as long as can solve the problem that the technical problem of the present invention
, and do not necessarily implied that between former and later two steps and necessarily eliminate other steps unlisted in invention, and
The first device, the second device and first end, the second end not necessarily represent tandem in specification, and it is used only for area
Not；Similarly, not necessarily meaning is a kind of directly electrical connection between each element of system, part, what specification represented
Only logical relation.Although the present invention is described in detail with reference to the foregoing embodiments, the ordinary skill people of this area
Member should be understood：It can still modify to the technical scheme described in foregoing embodiments, or to which part skill
Art feature carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each reality of the present invention
Apply the spirit and scope of a technical scheme.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
- A kind of 1. solid-state switching circuits based on diode series-parallel connection bridge, it is characterised in thatThe solid-state switching circuits include forward circuit and negater circuit, and the forward circuit and negater circuit include two poles Pipe；The forward circuit and the negater circuit share a gate-controlled switch circuit and anti-paralleled diode.
- 2. solid-state switching circuits according to claim 1, it is characterised in thatThe gate-controlled switch circuit includes electronic power switch.
- 3. solid-state switching circuits according to claim 2, it is characterised in thatThe electronic power switch is any one in IGCT, IGBT, IGCT or GTO.
- 4. solid-state switching circuits according to claim 1, it is characterised in thatThe forward circuit includes the first diode, the 3rd diode, negative electrode and the gate-controlled switch of first diode The first end connection of circuit, the anode of the 3rd diode are connected with the second end of the gate-controlled switch circuit；The negater circuit includes the second diode, the 4th diode, negative electrode and the gate-controlled switch of second diode The first end connection of circuit, the anode of the 4th diode are connected with the second end of the gate-controlled switch circuit.
- 5. a kind of automatic transfer switch device, it is characterised in that the automatic transfer switch device includes main switching switch block Switch switch block with standby, wherein,The main switching switch block is opened including three solid-states based on diode series-parallel connection bridge as described in claim 1-4 is any Powered-down road, it is respectively used in the A phase, B phase, C phase branch road of three-phase electricity；The standby switching switch block is opened including three solid-states based on diode series-parallel connection bridge as described in claim 1-4 is any Powered-down road, it is respectively used in the A phase, B phase, C phase branch road of three-phase electricity.
- A kind of 6. power supply switch protecting system, it is characterised in thatThe power protection switching system includes：Working power and stand-by power supply；Automatic transfer switch device as claimed in claim 5, the main switching switch block in the automatic transfer switch device It is connected with working power, standby switching switch block is connected with stand-by power supply；Monitoring system, the working condition for monitoring power supply and/or stand-by power supply；Control protection system, for controlling each main switching switch and/or standby switching switch in the automatic transfer switch device The break-make of the gate-controlled switch branch road of middle on-off circuit.
- 7. power supply switch protecting system according to claim 6, it is characterised in thatThe monitoring system is additionally operable to the information of the working condition being sent to the Control protection system, the control protection System controls the automatic transfer switch device in the main switching switch block and standby switching switch block according to described information Between switch.
- 8. the power supply switch protecting system according to claim 6 or 7, it is characterised in thatThe monitoring system also detects the switch closing and switch opening state of the automatic transfer switch, and by the feedback of the information of the state To the Control protection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010693.2A CN107769370A (en) | 2017-10-25 | 2017-10-25 | A kind of solid state switch based on diode series-parallel connection bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010693.2A CN107769370A (en) | 2017-10-25 | 2017-10-25 | A kind of solid state switch based on diode series-parallel connection bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107769370A true CN107769370A (en) | 2018-03-06 |
Family
ID=61271506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711010693.2A Pending CN107769370A (en) | 2017-10-25 | 2017-10-25 | A kind of solid state switch based on diode series-parallel connection bridge |
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| Country | Link |
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| CN (1) | CN107769370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111245087A (en) * | 2020-01-19 | 2020-06-05 | 国网江苏省电力有限公司电力科学研究院 | Hybrid direct-current fast switching device and control method thereof |
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| CN201369603Y (en) * | 2009-02-17 | 2009-12-23 | 泉州纪超电子有限公司 | Intelligent type dual-power switching circuit |
| CN204425031U (en) * | 2015-02-13 | 2015-06-24 | 国家电网公司 | A kind of intelligent diverter switch |
| CN106300301A (en) * | 2016-10-12 | 2017-01-04 | 清华大学 | Two-way mechanical formula dc circuit breaker based on change of current drive circuit and control method thereof |
| CN106300291A (en) * | 2016-08-27 | 2017-01-04 | 天津大学 | Hybrid high voltage DC breaker based on IGBT |
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2017
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|---|---|---|---|---|
| CN1598988A (en) * | 2004-07-30 | 2005-03-23 | 东南大学 | Transverter of mixed soft cut-off current-limiting circuit breaker |
| US20070121257A1 (en) * | 2005-11-30 | 2007-05-31 | Arindam Maitra | Multifunction hybrid solid-state switchgear |
| CN201369603Y (en) * | 2009-02-17 | 2009-12-23 | 泉州纪超电子有限公司 | Intelligent type dual-power switching circuit |
| CN204425031U (en) * | 2015-02-13 | 2015-06-24 | 国家电网公司 | A kind of intelligent diverter switch |
| CN106300291A (en) * | 2016-08-27 | 2017-01-04 | 天津大学 | Hybrid high voltage DC breaker based on IGBT |
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| CN111245087A (en) * | 2020-01-19 | 2020-06-05 | 国网江苏省电力有限公司电力科学研究院 | Hybrid direct-current fast switching device and control method thereof |
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Application publication date: 20180306 |