CN107086541A - The hybrid circuit breaker and its cutoff method of a kind of two-way disjunction - Google Patents
The hybrid circuit breaker and its cutoff method of a kind of two-way disjunction Download PDFInfo
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- CN107086541A CN107086541A CN201710415079.8A CN201710415079A CN107086541A CN 107086541 A CN107086541 A CN 107086541A CN 201710415079 A CN201710415079 A CN 201710415079A CN 107086541 A CN107086541 A CN 107086541A
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- branch road
- current
- high speed
- electric current
- speed machine
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- 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
- H02H3/08—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 responsive to excess current
- H02H3/087—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 responsive to excess current for dc applications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
Abstract
Disclose the hybrid circuit breaker and cutoff method of a kind of two-way disjunction, the breaker includes main current loop, electric current shifts branch road, overvoltage limits branch road, on-line monitoring system, control system, end of incoming cables C1 and leading-out terminal C2, and main current loop, electric current shifts branch road and overvoltage limitation branch circuit parallel connection, half control type power semiconductor VD1 negative poles and half control type power semiconductor VD3 positive poles are connected to high speed machine switch fracture one end, half control type power semiconductor VD2 negative poles and half control type power semiconductor VD4 positive poles are connected to the high speed machine switch fracture other end.The hybrid dc circuit breaker has the ability of two-way admittance and disjunction, applied in two-way through-flow DC power-supply system.
Description
Technical field
The present invention relates to the hybrid circuit breaker of two-way disjunction and its cutoff method, more particularly to by changing triggering transfer
The sequential of the half control type power semiconductor of branch road, to realize the breaker for the function of turning off different directions electric current.
Background technology
Box-like dc circuit breaker has the advantages that through-current capability is strong, turn-off speed is fast, on-state loss is small, is always in recent years
Industry study hotspot.With the further development of DC power-supply system, in new straight-flow system, most of loads have load
The characteristics of with power supply double attribute.This feature causes the flow direction of electric current in direct current network and energy to have uncertain spy
Point.This feature proposes the requirement of two-way disjunction to dc circuit breaker.The dc circuit breaker of this straight-flow system is worked in, no
The electric power system current direction worked as traditional breaker has the characteristics of determining.And hybrid direct current interruption at this stage
Device is mostly by manufacturing the oscillating current manufacture of intraocular zero crossing opposite with short circuit current flow, so as to realize the purpose of direct current segmentation.
Under this application background, the dc circuit breaker applied to bidirectional, dc electric power system must possess enough identification current directions, and
And the ability that corresponding disjunction is acted is made according to current direction in breaker open operation.
Disclosed above- mentioned information is used only for strengthening the understanding to background of the present invention in the background section, it is thus possible to
Include the information of prior art known to a person of ordinary skill in the art in not constituting home.
The content of the invention
The deficiency or defect existed for above-mentioned prior art, it is an object of the invention to provide a kind of new hybrid
Breaker and its control method., can be with by controlling the power semiconductor of transfer current circuit to be turned on according to certain sequential
The overvoltage climbing speed at effective limiting circuit breaker two ends, and due in interrupting process capacitance current have passed through and shift twice,
Voltage direction after the completion of breaker cut-offs on recharged capacitance is consistent with the pre-charge voltage direction before action, eliminates electric capacity
C charging process, therefore hybrid circuit breaker has two-way admittance and breaking function.When the voltage at transfer current circuit two ends reaches
To overvoltage limiting circuit conduction threshold when, overvoltage limiting circuit conducting so that main current circuit both end voltage is limited
In certain limit；Control system monitors the current amplitude and current changing rate of circuit 1 in main current circuit and transfer current circuit,
And control high speed machine switch and transfer current circuit to be acted according to certain sequential according to monitoring result.
The purpose of the present invention is to be achieved by the following technical programs.
An aspect of of the present present invention, a kind of hybrid circuit breaker of two-way disjunction include main current loop, electric current transfer branch road,
Overvoltage limitation branch road, on-line monitoring system, control system, leading-out terminal C1 and leading-out terminal C2, and main current loop, electric current turn
Move branch road and overvoltage limitation branch circuit parallel connection.
The main current loop is composed in series by leading-out terminal C1, high speed machine switch and leading-out terminal C2.
The electric current transfer branch road includes branch road 1, branch road 2 and vibration branch road, wherein, branch road 1 is partly led by half control type power
Body device VD1 and half control type power semiconductor VD2 positive poles are composed in series, and branch road 2 is by half control type power semiconductor VD3
It is composed in series with half control type power semiconductor VD4 negative poles, the transfer electric capacity C and vibration inductance L1 of vibration branch route preacceleration inflation
Composition.
The two ends of branch road 1 are connected in parallel on high speed machine switch ends, realize the electric current transfer branch road and main current loop
Parallel connection, and one end that half control type power semiconductor VD1 is connected with VD2 positive pole in the branch road 1 and vibration branch
Inductance L1 sides are vibrated in road to be connected.
The two ends of branch road 2 are connected in parallel on high speed machine switch ends, so as to realize the electric current transfer branch road and principal current
The parallel connection in loop, and the half control type power semiconductor VD3 and VD4 that shift electric capacity C sides and branch road 2 of the vibration branch road
One end that positive pole is connected is connected.
Transfer electric capacity C in the vibration branch road is close negatively charged with the junction of branch road 2 electric capacity pole, and the other end fills just
Electricity.
All half control type power semiconductors are the half control type power semiconductor of one-way conduction.
On-line monitoring system is including the current sensor D0 for measuring system current status, for measuring main current loop
Current status current sensor D1, for measure electric current transfer branch road current status current sensor D2, for measuring
The current status current sensor D3 of overvoltage limiting circuit, the voltage sensor for measuring the fracture voltage that high speed machine is switched
Device Vhss, the voltage sensor Vc for measuring transfer electric capacity C both end voltage states, the motion for measuring high speed machine switch
The displacement transducer P and circuit breaker ambient temperature sensor T1 of state.
The control system includes signal conditioning circuit, high-speed AD, processor, human-computer interaction interface and communication module, institute
State system power size and flow direction, the electric current of the main current loop, the electric current of electric current transfer subcircuits, overvoltage limitation branch
Electric current, high speed machine switch fracture voltage, transfer capacitance voltage amplitude and/or the numerical value of high speed machine switch displacement on road pass through
Input processor is calculated after signal conditioning circuit and high-speed AD filter amplifying processing, the processor calculating branch road 1 or branch road 2
The amplitude and rate of change di/dt of electric current, control system is based on result of calculation progress high speed machine switch and half control type power is partly led
Body device is controlled, and the human-computer interaction interface shows the circuit-breaker status and result of calculation in real time, and the communication module is upward
Level system sends fault waveform and receives the control command of higher level's control system.
When system power direction is from C1 to C2, current amplitude and the change of the main current loop are calculated by control system
The current amplitude and rate of change of circuit 1 control the high speed machine switch and electric current to turn in rate and electric current transfer branch road
Half control type power semiconductor VD1 to the VD4 actions moved in branch road, when system power direction is from C2 to C1, pass through control
The current amplitude of circuit 2 in the current amplitude and rate of change of main current loop described in system-computed and electric current transfer branch road
Control the high speed machine switch and electric current to shift the half control type power semiconductor VD1 to VD4 in branch road with rate of change to move
Make.
Under the normal open position of system, system power flows through from the main current loop, there is certain pre- on transfer electric capacity C
Charging voltage, all half control type power semiconductors of electric current transfer branch road are not triggered, and electric current transfer branch road does not have electric current,
Overvoltage limitation branch road conduction threshold is lower than system voltage, and overvoltage limitation branch road does not have electric current to flow through.
When occurring short trouble or when control system receives the separating brake instruction of higher level's control system, control system is sent point
Lock is instructed, and control system sends separating brake action command to high speed machine switch, and high speed machine starts action, then according to institute
The data of on-line monitoring system return are stated, flow direction of the control system based on circuit breaker current triggers half control type work(with specific sequential
Rate semiconductor devices VD1-VD4, completes electric current and forces zero passage, realization is cut-off.
In the hybrid circuit breaker of described two-way disjunction, described half control type power semiconductor VD1, VD2, VD3
With any one or multiple combination of the VD4 for GTO, IGCT, IGBT.
In the hybrid circuit breaker of described two-way disjunction, the high speed machine switch is the high speed based on electromagnetic repulsion force
Mechanical switch, the mechanical switch driven based on high-speed electric expreess locomotive or the high speed machine switch based on explosion driving.
In the hybrid circuit breaker of described two-way disjunction, the design parameter of the overvoltage limitation branch road includes voltage
Limiting circuit capacity, conducting voltage threshold value, electric current when reaching conducting voltage, the spacing voltage of highest and in the spacing electricity of highest
Electric current during pressure.
In the hybrid circuit breaker of described two-way disjunction, the overvoltage limitation branch road normally runs feelings in breaker
Cut-off state is under condition, leakage current is less than 0.5 μ A；The conducting voltage threshold value of the overvoltage limitation branch road is the breaker
1.75 times of residing system voltage.
In the hybrid circuit breaker of described two-way disjunction, the overvoltage limitation branch road is aoxidized including line type metal
Thing arrester, gapless Line type's MOA, all insulation polymeric metal oxide surge arrester or detachable
Any one or more combinations in arrester.
In the hybrid circuit breaker of described two-way disjunction, the control system includes processor, and the processor is
General processor, digital signal processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA.
In the hybrid circuit breaker of described two-way disjunction, the processor includes memory, and the memory can be with
It is programmable only including one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable
Read memory EEPROM.
According to another aspect of the present invention, a kind of electric current of hybrid circuit breaker using described two-way disjunction flows from C1
Comprise the following steps to cutoff method during C2：
In the first step, system power is flowed into from leading-out terminal C1, is flowed out after high speed machine is switched from leading-out terminal C2.
In the second step, when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System sends separating brake instruction, and half control type power semiconductor VD2 and VD4 are triggered according to the sense of current, and high speed machine starts to beat
Open, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from major loop.
In third step, anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current to return
Road current over-zero, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open.
In four steps, main current loop is constantly to transfer electric capacity C chargings, when breaker both end voltage exceedes overvoltage
When limiting the conduction threshold of branch road, overvoltage limitation branch road conducting, because overvoltage limits the on state resistance of branch road much smaller than electricity
Circulation moves the on state resistance of branch road, and electric current is quickly to overvoltage limitation branch road transfer.
In the 5th step, when shifting branch current zero passage, half control type power semiconductor VD2 and VD4 zero-crossing switching, by
It is less than the conduction threshold that overvoltage limits branch road in system voltage, overvoltage limitation branch road recovers high impedance status, interrupting process
Complete.
A kind of another aspect of the present invention, the electric current of hybrid circuit breaker using described two-way disjunction flows to C1 from C2
When cutoff method comprise the following steps：
In the first step, system power is flowed into from leading-out terminal C2, is flowed out after high speed machine is switched from leading-out terminal C1.
In the second step, when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System sends separating brake instruction, and half control type power semiconductor VD1 and VD3 are triggered according to the sense of current, and high speed machine starts to beat
Open, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from main current loop.
In third step, anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current to return
Road current over-zero, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open.
In four steps, main current loop is constantly to transfer electric capacity C chargings, when breaker both end voltage exceedes overvoltage
When limiting the conduction threshold of branch road, overvoltage limitation branch road conducting turns because the on state resistance that overvoltage limits branch road is much smaller than
The on state resistance of branch road is moved, electric current is quickly to overvoltage limitation branch road transfer.
In the 5th step, when electric current shifts branch current zero passage, half control type power semiconductor VD1 and VD3 zero passage are closed
Disconnected, because system voltage is less than the conduction threshold that overvoltage limits branch road, overvoltage limitation branch road recovers high impedance status, cut-off
Process is completed.
Described above is only the general introduction of technical solution of the present invention, in order to cause the technological means of the present invention clearer
Understand, reach the degree that those skilled in the art can be practiced according to the content of specification, and in order to allow the present invention
Above and other objects, features and advantages can become apparent, below with the present invention embodiment illustrated
Explanation.
Brief description of the drawings
By reading the detailed description in hereafter preferred embodiment, the present invention various other advantage and benefit
It will be clear understanding for those of ordinary skill in the art.Figure of description is only used for showing the purpose of preferred embodiment,
And it is not considered as limitation of the present invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Other accompanying drawings.And in whole accompanying drawing, identical part is presented with like reference characters.
In the accompanying drawings：
Fig. 1 is the structural representation of the hybrid circuit breaker of two-way disjunction according to an embodiment of the invention；
Fig. 2 is on-line monitoring system sensor according to an embodiment of the invention in circuit breaker internal distribution schematic diagram；
Fig. 3 (a)-Fig. 3 (e) be circuit breaker current according to an embodiment of the invention from C1 flow to C2 when one-way only operation
Structural representation；
Fig. 4 (a)-Fig. 4 (e) be circuit breaker current according to an embodiment of the invention from C2 flow to C1 when one-way only operation
Structural representation；
Fig. 5 is the control system block diagram of the hybrid circuit breaker of two-way disjunction according to an embodiment of the invention；
Fig. 6 is that the electric current of the hybrid circuit breaker according to an embodiment of the invention using two-way disjunction flows to C2 from C1
When cutoff method step schematic diagram；
Fig. 7 is that the electric current of the hybrid circuit breaker according to an embodiment of the invention using two-way disjunction flows to C1 from C2
When cutoff method step schematic diagram.
The present invention is further explained below in conjunction with drawings and examples.
Embodiment
The specific embodiment of the present invention is more fully described below with reference to accompanying drawings.Although showing the present invention's in accompanying drawing
Specific embodiment, it being understood, however, that may be realized in various forms the present invention without that should be limited by embodiments set forth here
System.Conversely it is able to be best understood from the present invention there is provided these embodiments, and can be complete by the scope of the present invention
Convey to those skilled in the art.
It should be noted that having used some vocabulary to censure specific components among specification and claim.Ability
Field technique personnel it would be appreciated that, technical staff may call same component with different nouns.This specification and right
It is required that not in the way of the difference of noun is used as differentiation component, but differentiation is used as with the difference of component functionally
Criterion."comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should be solved
It is interpreted into " include but be not limited to ".Specification subsequent descriptions for implement the present invention better embodiment, so it is described description be with
For the purpose of the rule of specification, the scope of the present invention is not limited to.Protection scope of the present invention is when regarding appended right
It is required that defined person is defined.
For ease of the understanding to the embodiment of the present invention, done below in conjunction with accompanying drawing by taking several specific embodiments as an example further
Explanation, and each accompanying drawing does not constitute the restriction to the embodiment of the present invention.
Fig. 1 is the structural representation of the hybrid circuit breaker of the two-way disjunction of one embodiment of the present of invention, and the present invention is in fact
Applying example will be specifically described with reference to Fig. 1.
As shown in figure 1, An embodiment provides a kind of hybrid circuit breaker of two-way disjunction, the open circuit
Device include main current loop, electric current transfer branch road, overvoltage limitation branch road, on-line monitoring system, control system, leading-out terminal C1 and
Leading-out terminal C2, and main current loop, electric current transfer branch road and overvoltage limitation branch circuit parallel connection.
The main current loop is composed in series by leading-out terminal C1, high speed machine switch and leading-out terminal C2.
The electric current transfer branch road includes branch road 1, branch road 2 and vibration branch road, wherein, branch road 1 is partly led by half control type power
Body device VD1 and half control type power semiconductor VD2 positive poles are composed in series, and branch road 2 is by half control type power semiconductor VD3
It is composed in series with half control type power semiconductor VD4 negative poles, the transfer electric capacity C and vibration inductance L1 of vibration branch route preacceleration inflation
Composition.
The two ends of branch road 1 are connected in parallel on high speed machine switch ends, realize the electric current transfer branch road and main current loop
Parallel connection, and one end that half control type power semiconductor VD1 is connected with VD2 positive pole in the branch road 1 and vibration branch
Inductance L1 sides are vibrated in road to be connected.
The two ends of branch road 2 are connected in parallel on high speed machine switch ends, so as to realize the electric current transfer branch road and principal current
The parallel connection in loop, and the half control type power semiconductor VD3 and VD4 that shift electric capacity C sides and branch road 2 of the vibration branch road
One end that positive pole is connected is connected.
Transfer electric capacity C in the vibration branch road is close negatively charged with the junction of branch road 2 electric capacity pole, and the other end fills just
Electricity.
All half control type power semiconductors are the half control type power semiconductor of one-way conduction.
Fig. 2 be on-line monitoring system sensor according to an embodiment of the invention in circuit breaker internal distribution schematic diagram,
Referring to Fig. 2, on-line monitoring system is including the current sensor D0 for measuring system current status, for measuring main current loop
Current status current sensor D1, for measure electric current transfer branch road current status current sensor D2, for measuring
The current status current sensor D3 of overvoltage limiting circuit, the voltage sensor for measuring the fracture voltage that high speed machine is switched
Device Vhss, the voltage sensor Vc for measuring transfer electric capacity C both end voltage states, the motion for measuring high speed machine switch
The displacement transducer P and circuit breaker ambient temperature sensor T1 of state.
Fig. 5 is the control system block diagram of the hybrid circuit breaker of two-way disjunction according to an embodiment of the invention.Referring to
Fig. 5, the control system includes signal conditioning circuit, high-speed AD, processor, human-computer interaction interface and communication module, the system
Size of current of uniting and flow direction, the electric current of the main current loop, the electric current of electric current transfer subcircuits, overvoltage limit branch road
Electric current, high speed machine switch fracture voltage, transfer capacitance voltage amplitude and/or the numerical value of high speed machine switch displacement pass through signal
Input processor is calculated after modulate circuit and high-speed AD filter amplifying processing, and the processor calculates the electric current of branch road 1 or branch road 2
Amplitude and rate of change di/dt, control system be based on result of calculation carry out high speed machine switch and half control type power semiconductor device
Part is controlled, and the human-computer interaction interface shows the circuit-breaker status and result of calculation, the communication module superior system in real time
System sends fault waveform and receives the control command of higher level's control system.
When system power direction is from C1 to C2, current amplitude and the change of the main current loop are calculated by control system
The current amplitude and rate of change of circuit 1 control the high speed machine switch and electric current to turn in rate and electric current transfer branch road
Half control type power semiconductor VD1 to the VD4 actions moved in branch road, when system power direction is from C2 to C1, pass through control
The current amplitude of circuit 2 in the current amplitude and rate of change of main current loop described in system-computed and electric current transfer branch road
Control the high speed machine switch and electric current to shift the half control type power semiconductor VD1 to VD4 in branch road with rate of change to move
Make.
Under the normal open position of system, system power flows through from the main current loop, there is certain pre- on transfer electric capacity C
Charging voltage, all half control type power semiconductors of electric current transfer branch road are not triggered, and electric current transfer branch road does not have electric current,
Overvoltage limitation branch road conduction threshold is lower than system voltage, and overvoltage limitation branch road does not have electric current to flow through.
When occurring short trouble or when control system receives the separating brake instruction of higher level's control system, control system is sent point
Lock is instructed, and control system sends separating brake action command to high speed machine switch, and high speed machine starts action, then according to institute
The data of on-line monitoring system return are stated, flow direction of the control system based on circuit breaker current triggers half control type work(with specific sequential
Rate semiconductor devices VD1-VD4, completes electric current and forces zero passage, realization is cut-off.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the half control type power semiconductor
VD1, VD2, VD3 and VD4 for GTO, IGCT, IGBT any one or multiple combinations.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the high speed machine switch is based on electricity
The high speed machine switch of magnetic repulsion, the mechanical switch driven based on high-speed electric expreess locomotive or the high speed machine switch based on explosion driving.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the overvoltage limits the design of branch road
Electric current, the spacing voltage of highest and place when parameter includes voltage limiting circuit capacity, conducting voltage threshold value, reaches conducting voltage
Electric current when highest spacing voltage.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the overvoltage limits branch road in open circuit
Cut-off state is under device normal operation, leakage current is less than 0.5 μ A；The overvoltage limits the conducting voltage threshold value of branch road
For 1.75 times of the system voltage residing for the breaker.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the overvoltage limitation branch road includes line
Road type metal oxide arrester, gapless Line type's MOA, all insulation composite sheath metal oxide are kept away
Any one or more combinations in thunder device or detachable lightning arrester.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the control system includes processor,
The processor is general processor, digital signal processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA.
In the preferred embodiment of the hybrid circuit breaker of described two-way disjunction, the processor includes memory, institute
Stating memory can including one or more read only memory ROMs, random access memory ram, flash memory or electronics
Erasable programmable read-only memory (EPROM) EEPROM.
Fig. 3 (a)-Fig. 3 (e) be circuit breaker current according to an embodiment of the invention from C1 flow to C2 when one-way only operation
A kind of structural representation, Fig. 4 (a)-Fig. 4 (e) be circuit breaker current according to an embodiment of the invention from C2 flow to C1 when it is single
To a kind of structural representation of work.Below in conjunction with Fig. 3,4 explanations cut-offfing when current direction is respectively to right and left
Process.
Interrupting process when current direction is right：
1st, normal with stream mode as shown in Fig. 3 (a), system power is flowed into from leading-out terminal C1, is switched by high speed machine
Flowed out afterwards from leading-out terminal C2.
2nd, shown in such as Fig. 3 (b), when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System processed sends separating brake instruction, triggers half control type power semiconductor VD2 and VD4, high speed machine switch to the right according to the sense of current
Start to open at, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from major loop.
3rd, shown in such as Fig. 3 (c), anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current
Loop current zero passage, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open.
4th, shown in such as Fig. 3 (d), main current loop is constantly to transfer electric capacity charging, when breaker both end voltage exceeded electricity
During the conduction threshold of pressure limitation branch road, overvoltage limitation branch road conducting.Because the on state resistance that overvoltage limits branch road is much smaller than
The on state resistance of branch road is shifted, electric current is quickly to overvoltage limitation branch road transfer.
5th, shown in such as Fig. 3 (e), when electric current shifts branch current zero passage, half control type power semiconductor VD2 and VD4 zero passage
Shut-off, because system voltage is less than the conduction threshold that overvoltage limits branch road, overvoltage limitation branch road recovers high impedance status, opened
Disconnected process is completed.
Interrupting process when 2. current direction is left：
1st, normal with stream mode as shown in Fig. 4 (a), system power is flowed into from leading-out terminal C2, is switched by high speed machine
Flowed out afterwards from leading-out terminal C1.
2nd, shown in such as Fig. 4 (b), when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System processed sends separating brake instruction, triggers half control type power semiconductor VD1 and VD3 to the right according to the sense of current.High speed machine is switched
Start to open at, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from main current loop.
3rd, shown in such as Fig. 4 (c), principal current is forced because oscillation circuit injects anti-phase high frequency oscillating current to main current loop
Loop current zero passage, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open.
4th, shown in such as Fig. 4 (d), main current loop is constantly to transfer electric capacity charging, when breaker both end voltage exceeded electricity
During the conduction threshold of pressure limitation branch road, overvoltage limitation branch road conducting.Because the on state resistance that overvoltage limits branch road is much smaller than
The on state resistance of branch road is shifted, electric current is quickly to overvoltage limitation branch road transfer.
5th, shown in such as Fig. 4 (e), when electric current shifts branch current zero passage, half control type power semiconductor VD1 and VD3 zero passage
Shut-off, because system voltage is less than the conduction threshold that overvoltage limits branch road, overvoltage limitation branch road recovers high impedance status, opened
Disconnected process is completed.
Therefore, in summary, the present invention proposes the cutoff method of the different current directions of breaker.
Fig. 6 is the electric current of the hybrid circuit breaker according to an embodiment of the invention using described two-way disjunction from C1
The step schematic diagram of cutoff method when flowing to C2, the electric current of hybrid circuit breaker using described two-way disjunction a kind of is from C1
Cutoff method when flowing to C2 comprises the following steps：
In first step S1, system power is flowed into from leading-out terminal C1, is flowed after high speed machine is switched from leading-out terminal C2
Go out.
In second step S2, when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System processed sends separating brake instruction, and half control type power semiconductor VD2 and VD4 are triggered according to the sense of current, and high speed machine starts
Open, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from major loop.
In third step S3, anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current
Loop current zero passage, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open；
In the fourth step s 4, main current loop is constantly to transfer electric capacity C chargings, when breaker both end voltage exceeded electricity
During the conduction threshold of pressure limitation branch road, overvoltage limitation branch road conducting, because the on state resistance that overvoltage limits branch road is much smaller than
Electric current shifts the on state resistance of branch road, and electric current is quickly to overvoltage limitation branch road transfer.
In the 5th step S5, when shifting branch current zero passage, half control type power semiconductor VD2 and VD4 zero-crossing switching,
Because system voltage is less than the conduction threshold that overvoltage limits branch road, overvoltage limitation branch road recovers high impedance status, cut-off
Journey is completed.
Fig. 7 is the electric current of the hybrid circuit breaker according to an embodiment of the invention using described two-way disjunction from C2
The step schematic diagram of cutoff method when flowing to C1, the electric current of hybrid circuit breaker using described two-way disjunction a kind of is from C2
Cutoff method when flowing to C1 comprises the following steps：
In first step S1, system power is flowed into from leading-out terminal C2, is flowed after high speed machine is switched from leading-out terminal C1
Go out；
In second step S2, when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System processed sends separating brake instruction, and half control type power semiconductor VD1 and VD3 are triggered according to the sense of current, and high speed machine starts
Open, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from main current loop；
In third step S3, anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current
Loop current zero passage, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open；
In the fourth step s 4, main current loop is constantly to transfer electric capacity C chargings, when breaker both end voltage exceeded electricity
During the conduction threshold of pressure limitation branch road, overvoltage limitation branch road conducting, because the on state resistance that overvoltage limits branch road is much smaller than
The on state resistance of branch road is shifted, electric current is quickly to overvoltage limitation branch road transfer；
In the 5th step S5, when electric current shifts branch current zero passage, half control type power semiconductor VD1 and VD3 zero passage
Shut-off, because system voltage is less than the conduction threshold that overvoltage limits branch road, overvoltage limitation branch road recovers high impedance status, opened
Disconnected process is completed.
The present invention can be limited effectively by controlling the power semiconductor of transfer current circuit to be turned on according to certain sequential
The overvoltage climbing speed at breaker two ends processed, and due in interrupting process capacitance current have passed through and shift twice, breaker
Voltage direction after the completion of cut-offfing on recharged capacitance is consistent with the pre-charge voltage direction before action, eliminates filling for electric capacity C
Electric process, therefore hybrid circuit breaker has two-way admittance and breaking function.
Although embodiment of the present invention is described above in association with accompanying drawing, the invention is not limited in above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment is only schematical, guiding, rather than restricted
's.One of ordinary skill in the art is under the enlightenment of this specification and is not departing from the scope that the claims in the present invention are protected
In the case of, the form of many kinds can also be made, these belong to the row of protection of the invention.
Claims (10)
1. a kind of hybrid circuit breaker of two-way disjunction, the breaker includes main current loop, electric current transfer branch road, overvoltage
Limit branch road, on-line monitoring system, control system, leading-out terminal C1 and leading-out terminal C2, and main current loop, electric current transfer branch road
And overvoltage limitation branch circuit parallel connection, it is characterised in that：
(1) main current loop is composed in series by leading-out terminal C1, high speed machine switch and leading-out terminal C2；
(2) the electric current transfer branch road includes branch road 1, branch road 2 and vibration branch road, wherein, branch road 1 is by half control type power semiconductor
Device VD1 and half control type power semiconductor VD2 positive poles are composed in series, branch road 2 by half control type power semiconductor VD3 and
Half control type power semiconductor VD4 negative poles are composed in series, the transfer electric capacity C and vibration inductance L1 groups of vibration branch route preacceleration inflation
Into, wherein：
(A) two ends of branch road 1 are connected in parallel on high speed machine switch ends, realize electric current transfer branch road and main current loop
Half control type power semiconductor VD1 is connected with VD2 positive pole in parallel connection, and the branch road 1 one end and vibration branch road
Middle vibration inductance L1 sides are connected；
(B) two ends of branch road 2 are connected in parallel on high speed machine switch ends, so as to realize that the electric current transfer branch road and principal current are returned
The parallel connection on road, and：
The transfer electric capacity C sides of the vibration branch road are connected with the half control type power semiconductor VD3 of branch road 2 with VD4 positive pole
One end be connected；
(C) the transfer electric capacity C in the vibration branch road is close negatively charged with the junction of branch road 2 electric capacity pole, and the other end fills just
Electricity；
(D) all half control type power semiconductors are the half control type power semiconductor of one-way conduction；
(3) on-line monitoring system is including the current sensor D0 for measuring system current status, for measuring main current loop
Current status current sensor D1, for measure electric current transfer branch road current status current sensor D2, for measuring
The current status current sensor D3 of overvoltage limiting circuit, the voltage sensor for measuring the fracture voltage that high speed machine is switched
Device Vhss, the voltage sensor Vc for measuring transfer electric capacity C both end voltage states, the motion for measuring high speed machine switch
The displacement transducer P and circuit breaker ambient temperature sensor T1 of state；
(4) control system includes signal conditioning circuit, high-speed AD, processor, human-computer interaction interface and communication module, described
System power size and flow direction, the electric current of the main current loop, electric current, the overvoltage limitation branch road of electric current transfer subcircuits
Electric current, high speed machine switch fracture voltage, transfer capacitance voltage amplitude and/or high speed machine switch displacement numerical value by letter
Input processor is calculated after number modulate circuit and high-speed AD filter amplifying processing, and the processor calculates the electricity of branch road 1 or branch road 2
The amplitude and rate of change di/dt of stream, control system are based on result of calculation and carry out high speed machine switch and half control type power semiconductor
Device is controlled, and the human-computer interaction interface shows the circuit-breaker status and result of calculation, the communication module superior in real time
System sends fault waveform and receives the control command of higher level's control system；
When system power direction is from C1 to C2, the current amplitude and rate of change of the main current loop are calculated by control system
And the current amplitude and rate of change of circuit 1 control the high speed machine switch and electric current to shift branch in the electric current transfer branch road
Half control type power semiconductor VD1 to VD4 actions in road, when system power direction is from C2 to C1, pass through control system
Calculate the current amplitude of circuit 2 and change in the current amplitude and rate of change and electric current transfer branch road of the main current loop
Rate controls the high speed machine switch and electric current to shift half control type power semiconductor VD1 to the VD4 actions in branch road；
Under the normal open position of system, system power flows through from the main current loop, has certain precharge on transfer electric capacity C
Pressure, all half control type power semiconductors of electric current transfer branch road are not triggered, and electric current transfer branch road does not have electric current, excessively electric
Pressure limitation branch road conduction threshold is lower than system voltage, and overvoltage limitation branch road does not have electric current to flow through,
When occurring short trouble or when control system receives the separating brake instruction of higher level's control system, control system sends separating brake and referred to
Order, control system sends separating brake action command to high speed machine switch, and high speed machine starts to act, then according to it is described
The data that line monitoring system is returned, flow direction of the control system based on circuit breaker current is with specific sequential triggering half control type power half
Conductor device VD1-VD4, completes electric current and forces zero passage, realization is cut-off.
2. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：It is preferred that, the half control type
Power semiconductor VD1, VD2, VD3 and VD4 for GTO, IGCT, IGBT any one or multiple combinations.
3. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：The high speed machine is switched
High speed machine switch based on electromagnetic repulsion force, the mechanical switch driven based on high-speed electric expreess locomotive or the high speed machine based on explosion driving
Switch.
4. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：The overvoltage limits branch road
Electric current, highest spacing voltage of the design parameter when including voltage limiting circuit capacity, conducting voltage threshold value, reaching conducting voltage
And electric current during voltage spacing in highest.
5. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：The overvoltage limits branch road
Cut-off state is under breaker normal operation, leakage current is less than 0.5 μ A；The overvoltage limits the electric conduction of branch road
Press system voltage of the threshold value residing for the breaker 1.75 times.
6. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：The overvoltage limits branch road
Including Line type's MOA, gapless Line type's MOA, all insulation composite sheath metal oxygen
Any one or more combinations in compound arrester or detachable lightning arrester.
7. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：The control system includes place
Device is managed, the processor is general processor, digital signal processor, application-specific integrated circuit ASIC or field programmable gate array
FPGA。
8. the hybrid circuit breaker of two-way disjunction according to claim 1, it is characterised in that：The processor includes storage
Device, the memory can include one or more read only memory ROMs, random access memory ram, flash memory or electricity
Sub- Erasable Programmable Read Only Memory EPROM EEPROM.
9. a kind of electric current of the hybrid circuit breaker of the two-way disjunction described in utilization claim any one of 1-8 from C1 flow to C2 when
Cutoff method, it comprises the following steps：
In first step (S1), system power is flowed into from leading-out terminal C1, is flowed out after high speed machine is switched from leading-out terminal C2；
In second step (S2), when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System sends separating brake instruction, and half control type power semiconductor VD2 and VD4 are triggered according to the sense of current, and high speed machine starts to beat
Open, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from major loop；
In third step (S3), anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current to return
Road current over-zero, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open；
In four steps (S4), main current loop is constantly to transfer electric capacity C chargings, when breaker both end voltage exceedes overvoltage
When limiting the conduction threshold of branch road, overvoltage limitation branch road conducting, because overvoltage limits the on state resistance of branch road much smaller than electricity
Circulation moves the on state resistance of branch road, and electric current is quickly to overvoltage limitation branch road transfer；
In the 5th step (S5), when shifting branch current zero passage, half control type power semiconductor VD2 and VD4 zero-crossing switching, by
It is less than the conduction threshold that overvoltage limits branch road in system voltage, overvoltage limitation branch road recovers high impedance status, interrupting process
Complete.
10. a kind of electric current of the hybrid circuit breaker of the two-way disjunction described in utilization claim any one of 1-8 flows to C1 from C2
When cutoff method, it comprises the following steps：
In first step (S1), system power is flowed into from leading-out terminal C2, is flowed out after high speed machine is switched from leading-out terminal C1；
In second step (S2), when on-line monitoring system, which detects system, occurs short trouble, control system, control are notified
System sends separating brake instruction, and half control type power semiconductor VD1 and VD3 are triggered according to the sense of current, and high speed machine starts to beat
Open, response characteristic is switched according to high speed machine, now and is not switched on, electric current still flows through from main current loop；
In third step (S3), anti-phase high frequency oscillating current is injected due to vibration Zhi Luxiang main current loops and forces principal current to return
Road current over-zero, high speed machine switch is due to current over-zero blow-out, and main current loop completes to open；
In four steps (S4), main current loop is constantly to transfer electric capacity C chargings, when breaker both end voltage exceedes overvoltage
When limiting the conduction threshold of branch road, overvoltage limitation branch road conducting turns because the on state resistance that overvoltage limits branch road is much smaller than
The on state resistance of branch road is moved, electric current is quickly to overvoltage limitation branch road transfer；
In the 5th step (S5), when electric current shifts branch current zero passage, half control type power semiconductor VD1 and VD3 zero passage are closed
Disconnected, because system voltage is less than the conduction threshold that overvoltage limits branch road, overvoltage limitation branch road recovers high impedance status, cut-off
Process is completed.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346531A (en) * | 2013-02-06 | 2013-10-09 | 西安交通大学 | Bidirectional breaking-based mixing type circuit breaker |
| KR101522411B1 (en) * | 2013-12-26 | 2015-05-21 | 주식회사 효성 | DC circuit breaker for shutting off bi-direction fault current using single circuit |
| CN104767171A (en) * | 2014-01-06 | 2015-07-08 | 国家电网公司 | High-voltage DC circuit breaker and realization method thereof |
| CN104979795A (en) * | 2014-04-08 | 2015-10-14 | 国家电网公司 | Passive high-voltage direct-current circuit breaker and implementation method therefor |
| CN105281289A (en) * | 2015-11-20 | 2016-01-27 | 中国船舶重工集团公司第七一二研究所 | Bidirectional combined type direct current breaker and control method thereof |
| CN105870877A (en) * | 2016-03-14 | 2016-08-17 | 全球能源互联网研究院 | Thyristor-based passive hybrid direct current circuit breaker and application method therefor |
| CN106786347A (en) * | 2016-11-11 | 2017-05-31 | 西安交通大学 | A kind of hybrid circuit breaker and its application method with bridge-type sensing transfer organization |
-
2017
- 2017-06-05 CN CN201710415079.8A patent/CN107086541B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346531A (en) * | 2013-02-06 | 2013-10-09 | 西安交通大学 | Bidirectional breaking-based mixing type circuit breaker |
| KR101522411B1 (en) * | 2013-12-26 | 2015-05-21 | 주식회사 효성 | DC circuit breaker for shutting off bi-direction fault current using single circuit |
| CN104767171A (en) * | 2014-01-06 | 2015-07-08 | 国家电网公司 | High-voltage DC circuit breaker and realization method thereof |
| CN104979795A (en) * | 2014-04-08 | 2015-10-14 | 国家电网公司 | Passive high-voltage direct-current circuit breaker and implementation method therefor |
| CN105281289A (en) * | 2015-11-20 | 2016-01-27 | 中国船舶重工集团公司第七一二研究所 | Bidirectional combined type direct current breaker and control method thereof |
| CN105870877A (en) * | 2016-03-14 | 2016-08-17 | 全球能源互联网研究院 | Thyristor-based passive hybrid direct current circuit breaker and application method therefor |
| CN106786347A (en) * | 2016-11-11 | 2017-05-31 | 西安交通大学 | A kind of hybrid circuit breaker and its application method with bridge-type sensing transfer organization |
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