CN107819457A - A kind of machinery and semiconductors coupling formula switch and its application method - Google Patents
A kind of machinery and semiconductors coupling formula switch and its application method Download PDFInfo
- Publication number
- CN107819457A CN107819457A CN201711276820.3A CN201711276820A CN107819457A CN 107819457 A CN107819457 A CN 107819457A CN 201711276820 A CN201711276820 A CN 201711276820A CN 107819457 A CN107819457 A CN 107819457A
- Authority
- CN
- China
- Prior art keywords
- switch
- mechanical switch
- mechanical
- semiconductor
- coupling formula
- 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 74
- 230000008878 coupling Effects 0.000 title claims abstract description 26
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 14
- 238000010891 electric arc Methods 0.000 claims abstract description 15
- 230000010355 oscillation Effects 0.000 claims description 3
- 229910018503 SF6 Inorganic materials 0.000 claims description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/0812—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
- H03K17/08124—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit in thyristor switches
-
- 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
- H03K17/60—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 the devices being bipolar transistors
- H03K17/605—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 the devices being bipolar transistors with galvanic isolation between the control circuit and the output circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0027—Measuring means of, e.g. currents through or voltages across the switch
Abstract
The present invention relates to a kind of electric switch, more particularly to a kind of machinery switchs with semiconductors coupling formula.The machinery switchs with semiconductors coupling formula, including mechanical switch one, mechanical switch two and semiconductor switch.The present invention devises a kind of machinery and, when switch is off, due to there is mechanical switch on two branch roads, circuit is equal to mechanical switch by reliable disjunction, its isolation effect in semiconductors coupling formula switch；When circuit in an ON state when, because the conducting resistance of mechanical switch two is much smaller than the conduction impedance of semiconductor switch, so electric current from mechanical switch two by, almost without electric current from mechanical switch one and semiconductor switch by the way that its turn-on effect is equal to mechanical switch；The presence of the combined switch, the generation of switch electric arc during disconnection and closure can be effectively avoided, effectively protects electrical equipment.In a word, the machinery and semiconductors coupling formula construction of switch are reasonable in design, and quick and easy for installation, cost is low, is adapted to promote the use of.
Description
Technical field
The present invention relates to a kind of electric switch, more particularly to a kind of machinery and semiconductors coupling formula switch and its user
Method.
Background technology
Common mechanical electric switch such as contactor, breaker, is to be realized by the contact of metallic conductor with separating
Circuit switches on and off.Mechanical switch is full of dielectric when disconnecting between contact, can reliably ensure to switch both sides electricity
Insulation between road；When mechanical switch is connected, because being that metal is directly connected to, there was only the resistance of very little between contact, electric current can be with
Pass through.But during connecting with disjunction, electric arc can be produced between contact, scaling loss is caused to contact, influence making for switch
With the life-span, circuit system also produces overvoltage because of unexpected state change, shoved, the harm such as harmonic wave.
With the development that power electronic devices is applied, people develop to be opened by power semiconductor for the semiconductor of core
Close（Or electronic switch）, such as IGCT, metal-oxide-semiconductor, IGBT.Semiconductor switch changes power half by the control of electric signal
The conducting state of conductor device, realize switching on and off for circuit.The connection of semiconductor switch and breaking course are believed by control
Number accurate perception, it is possible to select appropriate time point to carry out switching manipulation, can also control and connect and the process of disjunction is grown
Short, curent change pattern, thus can avoid occurring in circuit overvoltage, shove, harmonic wave the problems such as, less have electric arc etc.
The appearance of problem.But semiconductor switch can not be accomplished completely isolated in off-state, have faint leakage current and exist；Connecing
, can not be fully on due to the presence in conducting dead band during logical state, in addition to the bulk resistor of switching material, can also there is one
The conduction voltage drop that can not be eliminated, causes heating loss.As can be seen here, the advantage inferior position of mechanical switch and semiconductor switch is lucky
Opposite.
In order to solve the above-mentioned technical problem, the present invention devises a kind of machinery and switched with semiconductors coupling formula, the machinery and
In semiconductors coupling formula switch when switch is off, due to there is mechanical switch on two branch roads, circuit is reliable
Disjunction, its isolation effect are equal to mechanical switch；When circuit in an ON state when, because the conducting resistance of mechanical switch two is remote
Less than the conduction impedance of semiconductor switch, thus electric current from mechanical switch two by almost without electric current from the He of mechanical switch one
By the way that its turn-on effect is equal to mechanical switch on semiconductor switch；The presence of the combined switch, it can effectively avoid switching
The generation of electric arc, effectively protects electrical equipment during disconnection and closure.In a word, the machinery is tied with semiconductors coupling formula switch
Structure is reasonable in design, quick and easy for installation, and cost is low, is adapted to promote the use of.
The content of the invention
In order to overcome defect present in background technology, the technical solution adopted for the present invention to solve the technical problems is：
A kind of machinery switchs with semiconductors coupling formula, including mechanical switch one, mechanical switch two and semiconductor switch, the mechanical switch
One and semiconductor switch be connected in series, the mechanical switch one and semiconductor switch are connected in parallel with mechanical switch two
Together.
The preferable mechanical switch one and mechanical switch two are bridge switch, rotary switch, finger-type switch or pincerlike
Switch.
The dielectric of the preferable mechanical switch one and mechanical switch two is air, vacuum, oil or sulfur hexafluoride gas
Body.
The preferable semiconductor switch is metal-oxide-semiconductor, IGCT or IGBT insulated gate bipolar transistors.
A kind of application method of described machinery and semiconductors coupling formula switch, it is characterised in that
（1）, during the connection of combined switch, under the operation of control system, mechanical switch one closes in advance, now because
Semiconductor switch not yet turns on, and does not have electric current to pass through in circuit；Subsequent semiconductor switch conducts, set up electric current in the loop；
Hereafter mechanical switch two is connected again, and loop current is transferred to the branch road where mechanical switch two, is connected process and is completed；In this process
In, when mechanical switch two is connected, because the branch road where semiconductor switch has been turned on, so the electricity at the both ends of mechanical switch two
Press extremely low, electric arc and circuit oscillation during connection will not be produced；
（2）, in the disconnection process of combined switch, the mechanical switch two disconnects in advance, and electric current is transferred to semiconductor switch
The branch road at place, the disjunction in the case where both end voltage is very low of mechanical switch two, is not in electric arc；Subsequent semiconductor switch is cut
Only, electric current is cut off, mechanical switch one disconnects followed by, due to not having electric current in now loop, also will not on mechanical switch one
There is electric arc.
Mechanical switch one be switched to mechanical switch two connect between time interval t1 and mechanical switch two be disconnected to machine
It is the connection or disjunction that electric current is undertaken by semiconductor switch in time interval t2 between the disconnection of tool switch one, can be by controlling
Signal controls change curve and the time start-stop of electric current, so as to select suitable mode, avoids circuit state suddenly change from causing
Overvoltage, shove, the harm such as harmonic wave.
The present invention devises a kind of machinery and switched with semiconductors coupling formula, the machinery with semiconductors coupling formula switch when opening
When pass is off, due to there is mechanical switch on two branch roads, circuit is equal to machine by reliable disjunction, its isolation effect
Tool switchs；When circuit in an ON state when, due to mechanical switch two conducting resistance much smaller than semiconductor switch conducting hinder
It is anti-, thus electric current from mechanical switch two by, almost without electric current from mechanical switch one and semiconductor switch by the way that it is turned on
Effect is equal to mechanical switch；The presence of the combined switch, it can effectively avoid switch electric arc during disconnection and closure
Produce, effectively protect electrical equipment.In a word, the machinery and semiconductors coupling formula construction of switch are reasonable in design, easy for installation fast
Victory, cost is low, is adapted to promote the use of.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of a kind of machinery of the present invention and semiconductors coupling formula switch；
Wherein:1st, mechanical switch one；2nd, mechanical switch two；3rd, semiconductor switch.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.Accompanying drawing is simplified schematic diagram, only with signal side
Formula illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Specific embodiment one, referring to Fig. 1, a kind of machinery switchs with semiconductors coupling formula, including mechanical switch 1, machine
Tool switch 22 and semiconductor switch 3, the mechanical switch 1 and semiconductor switch 3 are connected in series, and the machinery is opened
Close 1 and semiconductor switch 3 be connected in parallel with mechanical switch 22, the mechanical switch 1 and mechanical switch 22 are
Bridge switch, the dielectric of the mechanical switch 1 and mechanical switch 22 is air, and the semiconductor switch 3 is metal-oxide-semiconductor.
A kind of application method of described machinery and semiconductors coupling formula switch, it is characterised in that
（1）, during the connection of combined switch, under the operation of control system, mechanical switch 1 in advance close, now
Because semiconductor switch 3 not yet turns on, there is no electric current to pass through in circuit；Subsequent semiconductor switch 3 turns on, and establishes electrification in the loop
Stream；Hereafter mechanical switch 22 is connected again, and loop current is transferred to the branch road where mechanical switch 22, is connected process and is completed；
During this, when mechanical switch 22 is connected, because the branch road where semiconductor switch 3 has been turned on, so mechanical switch two
The voltage at 2 both ends is extremely low, will not produce electric arc and circuit oscillation during connection；
（2）, in the disconnection process of combined switch, the mechanical switch 22 disconnects in advance, and electric current is transferred to semiconductor switch
Branch road where 3, the disjunction in the case where both end voltage is very low of mechanical switch 22, is not in electric arc；Subsequent semiconductor switch
3 cut-offs, cut off electric current, and mechanical switch 1 disconnects followed by, due to not having electric current in now loop, on mechanical switch 1
Be not in electric arc.
Mechanical switch 1 be switched to mechanical switch 22 connect between time interval t1 and mechanical switch 22 be disconnected to
Mechanical switch 1 disconnect between time interval t2 in, be the connection or disjunction that electric current is undertaken by semiconductor switch 3, Ke Yiyou
Control signal controls change curve and the time start-stop of electric current, so as to select suitable mode, avoids circuit state suddenly change
Caused by overvoltage, shove, the harm such as harmonic wave.
The present invention devises a kind of machinery and switched with semiconductors coupling formula, the machinery with semiconductors coupling formula switch when opening
When pass is off, due to there is mechanical switch on two branch roads, circuit is equal to machine by reliable disjunction, its isolation effect
Tool switchs；When circuit in an ON state when, due to mechanical switch two conducting resistance much smaller than semiconductor switch conducting hinder
It is anti-, thus electric current from mechanical switch two by, almost without electric current from mechanical switch one and semiconductor switch by the way that it is turned on
Effect is equal to mechanical switch；The presence of the combined switch, it can effectively avoid switch electric arc during disconnection and closure
Produce, effectively protect electrical equipment.In a word, the machinery and semiconductors coupling formula construction of switch are reasonable in design, easy for installation fast
Victory, cost is low, is adapted to promote the use of.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (5)
1. a kind of machinery switchs with semiconductors coupling formula, including mechanical switch one（1）, mechanical switch two（2）And semiconductor switch
（3）, it is characterised in that：The mechanical switch one（1）And semiconductor switch（3）It is connected in series, the mechanical switch one
（1）And semiconductor switch（3）With mechanical switch two（2）It is connected in parallel.
2. a kind of machinery according to claim 1 switchs with semiconductors coupling formula, it is characterised in that the mechanical switch one
（1）With mechanical switch two（2）For bridge switch, rotary switch, finger-type switch or pincerlike switch.
3. a kind of machinery according to claim 1 switchs with semiconductors coupling formula, it is characterised in that the mechanical switch one
（1）With mechanical switch two（2）Dielectric be air, vacuum, oil or sulfur hexafluoride gas.
4. a kind of machinery according to claim 1 switchs with semiconductors coupling formula, it is characterised in that semiconductor switch（3）
For metal-oxide-semiconductor, IGCT or IGBT insulated gate bipolar transistors.
5. the application method of a kind of machinery according to claim 1 and semiconductors coupling formula switch, it is characterised in that
（1）, during the connection of combined switch, under the operation of control system, mechanical switch one（1）Closure in advance, this
When because of semiconductor switch（3）Not yet turn on, there is no electric current to pass through in circuit；Subsequent semiconductor switch（3）Conducting, builds in the loop
Erect electric current；Hereafter mechanical switch two again（2）Connect, loop current is transferred to mechanical switch two（2）The branch road at place, was connected
Journey is completed；In the process, when mechanical switch two（2）During connection, due to semiconductor switch（3）The branch road at place has been turned on,
So mechanical switch two（2）The voltage at both ends is extremely low, will not produce electric arc and circuit oscillation during connection；
（2）, in the disconnection process of combined switch, the mechanical switch two（2）Disconnect in advance, electric current is transferred to semiconductor and opened
Close（3）The branch road at place, mechanical switch two（2）The disjunction in the case where both end voltage is very low, is not in electric arc；Led with later half
Body switchs（3）Cut-off, electric current is cut off, followed by mechanical switch one（1）Disconnect, it is mechanical due to there is no electric current in now loop
Switch one（1）On be also not in electric arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276820.3A CN107819457A (en) | 2017-12-06 | 2017-12-06 | A kind of machinery and semiconductors coupling formula switch and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276820.3A CN107819457A (en) | 2017-12-06 | 2017-12-06 | A kind of machinery and semiconductors coupling formula switch and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107819457A true CN107819457A (en) | 2018-03-20 |
Family
ID=61605787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711276820.3A Pending CN107819457A (en) | 2017-12-06 | 2017-12-06 | A kind of machinery and semiconductors coupling formula switch and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107819457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863483A (en) * | 2020-07-08 | 2020-10-30 | 上海京硅智能技术有限公司 | Hybrid switch control mechanism |
| WO2023066519A1 (en) * | 2021-10-18 | 2023-04-27 | Eaton Intelligent Power Limited | Solid-state dc device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120306264A1 (en) * | 2010-02-10 | 2012-12-06 | Siemens Aktiengesellschaft | Switch load shedding device for a disconnect switch |
| CN103092099A (en) * | 2013-01-09 | 2013-05-08 | 宁夏电力公司电力科学研究院 | Smart speed switch and smart speed switch control system |
| WO2015149579A1 (en) * | 2014-04-04 | 2015-10-08 | 广州市金矢电子有限公司 | Current monitoring type electronic arc-extinguishing apparatus |
-
2017
- 2017-12-06 CN CN201711276820.3A patent/CN107819457A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120306264A1 (en) * | 2010-02-10 | 2012-12-06 | Siemens Aktiengesellschaft | Switch load shedding device for a disconnect switch |
| CN103092099A (en) * | 2013-01-09 | 2013-05-08 | 宁夏电力公司电力科学研究院 | Smart speed switch and smart speed switch control system |
| WO2015149579A1 (en) * | 2014-04-04 | 2015-10-08 | 广州市金矢电子有限公司 | Current monitoring type electronic arc-extinguishing apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863483A (en) * | 2020-07-08 | 2020-10-30 | 上海京硅智能技术有限公司 | Hybrid switch control mechanism |
| WO2023066519A1 (en) * | 2021-10-18 | 2023-04-27 | Eaton Intelligent Power Limited | Solid-state dc device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8907234B2 (en) | Hybrid current switching device | |
| CN107005045B (en) | High-voltage direct current tripper | |
| AU1369800A (en) | Switching apparatus and method for an electric power transmission line section | |
| CN102473541B (en) | Tap changer | |
| JP6781972B2 (en) | Arc-free current connection device | |
| CN103337852B (en) | A kind of direct current network breaking device | |
| CN103971965B (en) | A kind of device and control method thereof making line current disjunction | |
| CN104319165A (en) | Three-position vacuum switch for achieving load-side external grounding by adopting bridge switch | |
| CN107819457A (en) | A kind of machinery and semiconductors coupling formula switch and its application method | |
| KR20120079452A (en) | Power switching system including a micro-electromechanical system(mems) array | |
| KR20060050183A (en) | High voltage bulk circuit breaker | |
| CN101969006B (en) | Method for improving converted current switching capability of ultra-high voltage alternating current open isolating switch | |
| AU767295B2 (en) | High-speed current-limiting switch | |
| CN106300237A (en) | A kind of magnetic field impulse transfer type is without arc dc circuit breaker | |
| CN106300065B (en) | Based on the switch cabinet system for wirelessly taking energy operating mechanism | |
| CN105990827A (en) | High-voltage direct-current circuit breaker topology circuit and realization method | |
| CN102254713B (en) | On-load capacity-regulating switch with single fracture | |
| CN108831806B (en) | It is a kind of to control the device of electric current fast transfer, method and system | |
| CN110086152A (en) | A kind of fast-speed direct current switch and its control method | |
| CN109904833A (en) | A kind of dc circuit breaker and its control method | |
| CN101587786B (en) | Switch arc suppression circuit for switch devices and control method thereof | |
| CN201773754U (en) | High-capacity vacuum circuit breaker for protecting short-circuit impact generator used in testing station | |
| CN108028148A (en) | DC switchgear and its application | |
| CN209571763U (en) | A kind of gas insulated combined electrical equipment of band isolation on-load switch | |
| CN203747367U (en) | Alternating current circuit switching-on and switching-off device adopting bidirectional thyristor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180320 |