CN102522261B - Soft-switching controller for vacuum circuit breaker - Google Patents
Soft-switching controller for vacuum circuit breaker Download PDFInfo
- Publication number
- CN102522261B CN102522261B CN201110460566.9A CN201110460566A CN102522261B CN 102522261 B CN102522261 B CN 102522261B CN 201110460566 A CN201110460566 A CN 201110460566A CN 102522261 B CN102522261 B CN 102522261B
- Authority
- CN
- China
- Prior art keywords
- vacuum circuit
- breaker
- module
- resistance
- voltage
- 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.)
- Active
Links
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a soft-switching controller for a vacuum circuit breaker, which comprises a control-signal receiving module, a voltage-detecting module, a current-detecting module, a vacuum circuit-breaker operating and controlling module, a microprocessing module and a power-supply module, wherein the control-signal receiving module is used for receiving a vacuum circuit-breaker control signal, the voltage-detecting module is used for detecting the voltage of a voltage transformer, the current-detecting module is used for detecting the current of a current transformer, and the vacuum circuit-breaker operating and controlling module is used for controlling the closing and opening operation of the vacuum circuit breaker; the microprocessing module is used for obtaining the vacuum circuit-breaker control signal in a locomotive electrical-power system through the control-signal receiving module and detecting the voltage of the voltage transformer or detecting the current of the current transformer according to the vacuum circuit-breaker control signal; the closing and opening operation of the vacuum circuit breaker is then controlled according to the voltage of the voltage transformer or the current of the current transformer; and the closing and opening operation of the vacuum circuit breaker is carried out under an uncharged condition through the realization of the embodiment of the invention, thereby the generation of an electric arc at the inner part of the vacuum circuit breaker is avoided, and the service life of the vacuum circuit breaker is prolonged.
Description
Technical field
The present invention relates to locomotive electrical system switchgear, particularly relate to a kind of soft-switching controller for vacuum circuit breaker.
Background technology
Vacuum circuit-breaker is the circuit breaker of a kind of contact in the bubble of high vacuum deciliter, is very suitable for the circuit needing to carry out frequent operation or fast shut-off, is thus obtained in the electric power system of all trades and professions and applies widely.In locomotive electrical system, vacuum circuit-breaker is mainly used in capacitive load circuit, and normally a vacuum circuit-breaker is connected with a current transformer with after a voltage transformer parallel connection again; At present, the vacuum circuit-breaker that locomotive uses all adopts the working method of direct combined floodgate, directly separating brake, is namely being closed a floodgate or after sub-gate signal, is carrying out at once closing a floodgate or separating brake action; But, vacuum circuit-breaker is all generally carrying out these operations in charged situation, and therefore very easily produce electric arc in the inside of vacuum circuit-breaker, this corrodes significantly by causing the contact of vacuum circuit-breaker, even likely cause an explosion accident, which reduce the useful life of vacuum circuit-breaker.
Summary of the invention
The object of this invention is to provide a kind of soft-switching controller for vacuum circuit breaker, so that make vacuum circuit-breaker carry out closing a floodgate in uncharged situation, sub-switching operation, thus avoid producing electric arc in the inside of vacuum circuit-breaker, extend the useful life of vacuum circuit-breaker.
The object of the invention is to be achieved through the following technical solutions:
A kind of soft-switching controller for vacuum circuit breaker, for receiving the vacuum circuit-breaker control signal in locomotive electric power system, and controls that vacuum circuit-breaker carries out closing a floodgate, sub-switching operation; Described locomotive electrical system comprises the vacuum circuit-breaker that elder generation connects with current transformer with voltage transformer parallel connection again; This Sofe Switch controller comprises: to be connected in locomotive electrical system and to receive the control signal receiver module of vacuum circuit-breaker control signal, be connected with voltage transformer and detect the voltage detection module of voltage transformer voltage, be connected with current transformer and detect the current detection module of current transformer electric current, be connected with vacuum circuit-breaker and control that vacuum circuit-breaker carries out closing a floodgate, the vacuum circuit-breaker operational module of sub-switching operation, micro treatment module and power module;
Micro treatment module is connected with control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module respectively;
Micro treatment module obtains the vacuum circuit-breaker control signal in locomotive electrical system by control signal receiver module, and detects voltage transformer voltage according to this vacuum circuit-breaker control signal or detect current transformer electric current; Carry out closing a floodgate according to described voltage transformer voltage or current transformer Current Control vacuum circuit-breaker again, sub-switching operation;
Power module is connected with micro treatment module, control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module, and provides electric energy respectively.
Preferably, corresponding vacuum circuit-breaker control signal comprises vacuum circuit-breaker switching signal and vacuum circuit-breaker sub-gate signal; Then:
Micro treatment module obtains the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module, and detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out closing operation, and detects current transformer electric current by current detection module; When detecting that current transformer electric current is greater than zero, then micro treatment module determination vacuum circuit-breaker closing operation completes;
And/or,
Micro treatment module obtains the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module, and controls current detection module detection current transformer electric current according to vacuum circuit-breaker sub-gate signal; When current transformer electric current is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out sub-switching operation, still detects current transformer electric current by current detection module simultaneously; If when detecting that current transformer electric current is still not more than zero, then micro treatment module determination vacuum circuit-breaker sub-switching operation completes.
Preferably, also comprise: the memory module under micro treatment module controls, vacuum circuit-breaker control data stored; This memory module is connected with micro treatment module and power module respectively;
When to be got the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module when micro treatment module, micro treatment module using vacuum circuit-breaker switching signal time of reception as vacuum circuit-breaker control data stored in memory module; When micro treatment module determination vacuum circuit-breaker closing operation completes, micro treatment module calculates the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, and vacuum circuit-breaker closing operation is completed information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete as vacuum circuit-breaker control data stored in memory module;
And/or,
When to be got the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module when micro treatment module, micro treatment module using vacuum circuit-breaker sub-gate signal time of reception as vacuum circuit-breaker control data stored in memory module; When micro treatment module determination vacuum circuit-breaker sub-switching operation completes, micro treatment module calculates the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, and vacuum circuit-breaker sub-switching operation is completed information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete as vacuum circuit-breaker control data stored in memory module.
Preferably, also comprise: the display module under micro treatment module controls, vacuum circuit-breaker control data shown; This display module is connected with micro treatment module and power module respectively;
When to be got the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module when micro treatment module, vacuum circuit-breaker switching signal sends to display module to show as vacuum circuit-breaker control data the time of reception by micro treatment module; When micro treatment module determination vacuum circuit-breaker closing operation completes, micro treatment module calculates the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, and vacuum circuit-breaker closing operation is completed the information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete and send to display module to show as vacuum circuit-breaker control data;
And/or,
When to be got the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module when micro treatment module, vacuum circuit-breaker sub-gate signal sends to display module to show as vacuum circuit-breaker control data the time of reception by micro treatment module; When micro treatment module determination vacuum circuit-breaker sub-switching operation completes, micro treatment module calculates the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, and vacuum circuit-breaker sub-switching operation is completed the information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete and send to display module to show as vacuum circuit-breaker control data.
Preferably, corresponding control signal receiver module comprises: the 2nd photoelectrical coupler U2, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 16th electric capacity C16 and the 3rd voltage stabilizing didoe D3;
Vacuum circuit-breaker control signal in locomotive electrical system is transmitted by locomotive control signal positive voltage transmission line and locomotive control signal negative voltage transmission line;
The 2nd described photoelectrical coupler U2 comprises the 2nd photoelectrical coupler importation diode and the 2nd photoelectrical coupler output triode;
The anode of the 2nd photoelectrical coupler importation diode is connected with one end of the 5th resistance R5 with one end of one end of the 6th resistance R6, the 16th electric capacity C16, the negative electrode of the 3rd voltage stabilizing didoe D3, and the other end of the 5th resistance R5 is connected with locomotive control signal positive voltage transmission line;
The negative electrode of the 2nd photoelectrical coupler importation diode is connected with the other end of the other end of the 6th resistance R6, the 16th electric capacity C16, the anode of the 3rd voltage stabilizing didoe D3, and is connected with locomotive control signal negative voltage transmission line;
The direct ground connection of emitter of the 2nd photoelectrical coupler output triode; The collector electrode of the 2nd photoelectrical coupler output triode is connected with one end of the 7th resistance R7 and micro treatment module respectively, and the other end of the 7th resistance R7 connects the positive 5V voltage output end of power module.
Preferably, corresponding voltage detection module comprises: electric pressure converter T1, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 7th diode D7, the 8th diode D8,6A operational amplifier U6A and 6D operational amplifier U6D;
High-voltage anode signal input part and the high voltage negative signal input of electric pressure converter T1 connect with voltage transformer respectively; The low-voltage negative signal output of electric pressure converter T1 is connected with the signal ground end of power module; The low-voltage positive signal output of electric pressure converter T1 is connected with one end of the 21st resistance R21;
The other end of the 21st resistance R21 is connected with one end of the 20th resistance R20 and the inverting input of 6A operational amplifier U6A respectively;
The other end of the 20th resistance R20 is connected with one end of the 18th resistance R18 and one end of the 19th resistance R19 respectively, and the other end of the 18th resistance R18 connects the positive 3.3V voltage output end of power module; The other end of the 19th resistance R19 connects the signal ground end of power module;
The in-phase input end of 6A operational amplifier U6A connects the signal ground end of power module; The output of 6A operational amplifier U6A passes through the inverting input of the 22nd resistance R22 feedback link 6A operational amplifier U6A;
The inverting input of 6D operational amplifier U6D is connected with the output of 6A operational amplifier U6A by the 23rd resistance R23 of series connection; The in-phase input end of 6D operational amplifier U6D connects the signal ground end of power module; The output of 6D operational amplifier U6D is connected, simultaneously also by the inverting input of the 24th resistance R24 feedback link 6D operational amplifier U6D with the anode of the 7th diode D7, the negative electrode of the 8th diode D8, one end of the 24th resistance R24 and micro treatment module successively;
The negative electrode of the 7th diode D7 connects the positive 5V voltage output end of power module; The anode of the 8th diode D8 connects the power ground end of power module.
Preferably, corresponding current detection module comprises: the 25th resistance R25, the 26th resistance R26, the 27th resistance R27, the 28th resistance R28, the 29th resistance R29, the 30th resistance R30, the 31st resistance R31, the 9th diode D9, the 10th diode D10,7A operational amplifier U7A, 7B operational amplifier U7B and 7C operational amplifier U7C;
The in-phase input end of 7A operational amplifier U7A is connected with current transformer; The inverting input of the output feedback link 7A operational amplifier U7A of 7A operational amplifier U7A, is connected with one end of the 26th resistance R26 simultaneously;
The other end of the 26th resistance R26 is connected with one end of the 25th resistance R25, one end of the 27th resistance R27 and the inverting input of 7B operational amplifier U7B respectively;
The other end of the 25th resistance R25 is connected with one end of the 30th resistance R30 and one end of the 31st resistance R31 respectively, and the other end of the 30th resistance R30 connects the positive 3.3V voltage output end of power module; The other end of the 31st resistance R31 connects the signal ground end of power module;
The in-phase input end of 7B operational amplifier U7B connects the signal ground end of power module; The output of 7B operational amplifier U7B connects the other end of the 27th resistance R27;
The inverting input of 7C operational amplifier U7C is connected with the output of 7B operational amplifier U7B by the 28th resistance R28 of series connection; The in-phase input end of 7C operational amplifier U7C connects the signal ground end of power module; The output of 7C operational amplifier U7C is connected, simultaneously also by the inverting input of the 29th resistance R29 feedback link 7C operational amplifier U7C with the anode of the 9th diode D9, the negative electrode of the 10th diode D10, one end of the 29th resistance R29 and micro treatment module successively;
The negative electrode of the 9th diode D9 connects the positive 5V voltage output end of power module; The anode of the 10th diode D10 connects the power ground end of power module.
Preferably, corresponding vacuum circuit-breaker operational module comprises: the 14th resistance R14, the 16th resistance R16, the 17th resistance R17, the 2nd diode D2, the 6th diode D6, the 3rd triode Q3, the 5th photoelectrical coupler U5 and electronic relay U7;
The 5th described photoelectrical coupler U5 comprises the 5th photoelectrical coupler importation diode and the 5th photoelectrical coupler output triode;
The anode of the 5th photoelectrical coupler importation diode is connected with the control signal high-voltage output terminal of micro treatment module with the 17th resistance R17 by the 2nd diode D2 connected successively; The negative electrode of the 5th photoelectrical coupler importation diode is directly connected with the control signal low-voltage output end of micro treatment module;
The base stage of the 3rd triode Q3 protects voltage output end to be connected by the 16th resistance R16 of series connection with the control signal of micro treatment module; The emitter of the 3rd triode Q3 is directly connected with the power ground end of power module; The collector electrode of the 3rd triode Q3 is connected between the 2nd diode D2 of series connection and the 17th resistance R17;
The emitter of the 5th photoelectrical coupler output triode is directly connected with the power ground end of power module; The collector electrode of the 5th photoelectrical coupler output triode is connected with the low level signal input of electronic relay U7;
The high level signal input of electronic relay U7 is connected with the positive 15V voltage output end of power module by the 14th resistance R14 of series connection; The control signal output of electronic relay U7 is connected with the high voltage control signal input of the negative electrode of the 6th diode D6 and vacuum circuit-breaker drive motors;
The anode of the 6th diode D6 is all connected with the negative 110V voltage output end of power module with the low-voltage control signal input of vacuum circuit-breaker drive motors;
Vacuum circuit-breaker drive motors connect and drive vacuum circuit-breaker to carry out closing a floodgate, sub-switching operation.
As seen from the above technical solution provided by the invention, the soft-switching controller for vacuum circuit breaker that the embodiment of the present invention provides obtains the vacuum circuit-breaker control signal in locomotive electrical system by control signal receiver module; If this vacuum circuit-breaker control signal is vacuum circuit-breaker switching signal, then control voltage detection module detects voltage transformer voltage and controls vacuum circuit-breaker when voltage transformer voltage is not more than zero and carries out closing operation; If this vacuum circuit-breaker control signal is vacuum circuit-breaker sub-gate signal, then control current detection module detection current transformer electric current and control vacuum circuit-breaker when current transformer electric current is not more than zero to carry out sub-switching operation; As can be seen here, the embodiment of the present invention enables vacuum circuit-breaker carry out closing a floodgate in uncharged situation, sub-switching operation, thus avoids and produces electric arc in the inside of vacuum circuit-breaker, extend the useful life of vacuum circuit-breaker.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the Sofe Switch controller that Fig. 1 provides for the embodiment of the present invention;
The circuit theory schematic diagram of the control signal receiver module that Fig. 2 provides for the embodiment of the present invention;
The circuit theory schematic diagram of the voltage detection module that Fig. 3 provides for the embodiment of the present invention;
The circuit theory schematic diagram of the current detection module that Fig. 4 provides for the embodiment of the present invention;
The circuit theory schematic diagram of the vacuum circuit-breaker operational module that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
First it should be noted that, in locomotive electrical system, vacuum circuit-breaker is used in capacitive load circuit usually; At least comprise a vacuum circuit-breaker, a voltage transformer and a current transformer in these capacitive load circuit, and vacuum circuit-breaker is all first connect with current transformer with voltage transformer parallel connection again.The soft-switching controller for vacuum circuit breaker that the embodiment of the present invention provides is exactly the vacuum circuit-breaker control signal receiving locomotive electric power system in these capacitive load circuit, and controls that vacuum circuit-breaker carries out closing a floodgate, sub-switching operation.Just will be described in detail the embodiment of the present invention by reference to the accompanying drawings below.
As shown in Figures 1 to 5, a kind of soft-switching controller for vacuum circuit breaker, for receiving the vacuum circuit-breaker control signal in locomotive electric power system, and controls that vacuum circuit-breaker carries out closing a floodgate, sub-switching operation; Its concrete structure can comprise: control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module, micro treatment module and power module; Micro treatment module is connected with control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module respectively, and obtain the vacuum circuit-breaker control signal in locomotive electrical system by control signal receiver module, detect voltage transformer voltage according to this vacuum circuit-breaker control signal again or detect current transformer electric current, then carrying out closing a floodgate according to this voltage transformer voltage or current transformer Current Control vacuum circuit-breaker, sub-switching operation; Power module is connected with micro treatment module, control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module respectively, and provides regulated power for these modules.
Wherein, corresponding vacuum circuit-breaker control signal can comprise vacuum circuit-breaker switching signal and vacuum circuit-breaker sub-gate signal, then the detailed process of this Sofe Switch controller control vacuum circuit-breaker can comprise following at least one:
(1) micro treatment module obtains the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module, and detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out closing operation, and detects current transformer electric current by current detection module; When detecting that current transformer electric current is greater than zero, then micro treatment module determination vacuum circuit-breaker closing operation completes;
(2) micro treatment module obtains the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module, and controls current detection module detection current transformer electric current according to vacuum circuit-breaker sub-gate signal; When current transformer electric current is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out sub-switching operation, still detects current transformer electric current by current detection module simultaneously; If when detecting that current transformer electric current is still not more than zero, then micro treatment module determination vacuum circuit-breaker sub-switching operation completes.
Particularly, in actual applications, this Sofe Switch controller control vacuum circuit-breaker can also comprise with lower component:
(1) memory module: be connected with micro treatment module and power module, and under micro treatment module controls, vacuum circuit-breaker control data is stored; Corresponding vacuum circuit-breaker control data can comprise: vacuum circuit-breaker switching signal time of reception, vacuum circuit-breaker closing operation complete the information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete, then this vacuum circuit-breaker control data can comprise at least one following technical scheme from the detailed process getting storage:
When 1. to be got the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module when micro treatment module, micro treatment module using vacuum circuit-breaker switching signal time of reception as vacuum circuit-breaker control data stored in memory module; When micro treatment module determination vacuum circuit-breaker closing operation completes, micro treatment module calculates the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, and vacuum circuit-breaker closing operation is completed information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete as vacuum circuit-breaker control data stored in memory module;
When 2. to be got the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module when micro treatment module, micro treatment module using vacuum circuit-breaker sub-gate signal time of reception as vacuum circuit-breaker control data stored in memory module; When micro treatment module determination vacuum circuit-breaker sub-switching operation completes, micro treatment module calculates the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, and vacuum circuit-breaker sub-switching operation is completed information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete as vacuum circuit-breaker control data stored in memory module.
(2) display module: be connected with micro treatment module and power module, and under micro treatment module controls, vacuum circuit-breaker control data is shown; Corresponding vacuum circuit-breaker control data can comprise: vacuum circuit-breaker switching signal time of reception, vacuum circuit-breaker closing operation complete the information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete, then this vacuum circuit-breaker control data can comprise at least one following technical scheme from the detailed process getting display:
When 1. to be got the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module when micro treatment module, vacuum circuit-breaker switching signal sends to display module to show as vacuum circuit-breaker control data the time of reception by micro treatment module; When micro treatment module determination vacuum circuit-breaker closing operation completes, micro treatment module calculates the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, and vacuum circuit-breaker closing operation is completed the information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete and send to display module to show as vacuum circuit-breaker control data;
When 2. to be got the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module when micro treatment module, vacuum circuit-breaker sub-gate signal sends to display module to show as vacuum circuit-breaker control data the time of reception by micro treatment module; When micro treatment module determination vacuum circuit-breaker sub-switching operation completes, micro treatment module calculates the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, and vacuum circuit-breaker sub-switching operation is completed the information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete and send to display module to show as vacuum circuit-breaker control data.
Further, the operation principle of the soft-switching controller for vacuum circuit breaker that the embodiment of the present invention provides is: due in locomotive electrical system, vacuum circuit-breaker is all first connect with current transformer with voltage transformer parallel connection again, therefore the magnitude of voltage of voltage transformer equals the magnitude of voltage of vacuum circuit-breaker, and the current value of current transformer equals the current value of vacuum circuit-breaker.Under vacuum circuit-breaker gate-dividing state, if the voltage transformer voltage that voltage detection module detects is not more than zero, then the voltage of vacuum circuit-breaker is also not more than zero, and that is vacuum circuit-breaker is now in not electriferous state, can carry out closing operation; Due to after vacuum circuit-breaker closes a floodgate, meeting generation current in vacuum circuit-breaker, if therefore after carrying out closing operation, the current transformer electric current detected by current detection module is greater than zero and shows the success of vacuum circuit-breaker closing operation.Under vacuum circuit-breaker "on" position, the current transformer electric current that current detection module detects is not more than zero, then the electric current flowing through vacuum circuit-breaker is also not more than zero, and that is vacuum circuit-breaker is now in not electriferous state, can carry out sub-switching operation; Due to after vacuum circuit-breaker separating brake, will not have electric current in vacuum circuit-breaker, if therefore after carrying out sub-switching operation, the current transformer electric current detected by current detection module is still not more than zero and shows the success of vacuum circuit-breaker sub-switching operation.As can be seen here, the embodiment of the present invention can make vacuum circuit-breaker carry out closing a floodgate in uncharged situation, sub-switching operation, thus avoids and produces electric arc in the inside of vacuum circuit-breaker, extend the useful life of vacuum circuit-breaker.
For making the object, technical solutions and advantages of the present invention clearly, enumerating embodiment below and by reference to the accompanying drawings, the embodiment of the present invention being described in further detail.
Embodiment one
As shown in Figures 1 to 5, a kind of soft-switching controller for vacuum circuit breaker, for receiving the vacuum circuit-breaker control signal in locomotive electric power system, and controls that vacuum circuit-breaker carries out closing a floodgate, sub-switching operation; Its concrete structure can comprise: control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module, memory module, display module, micro treatment module and power module; Micro treatment module is connected with control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module, memory module and display module respectively; Power module is connected with micro treatment module, control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module respectively, and provides regulated power for these modules.
Wherein, corresponding vacuum circuit-breaker control signal can comprise vacuum circuit-breaker switching signal and vacuum circuit-breaker sub-gate signal, then the detailed process of this Sofe Switch controller control vacuum circuit-breaker can comprise following at least one:
(1) micro treatment module obtains the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module, and using vacuum circuit-breaker switching signal time of reception as vacuum circuit-breaker control data stored in memory module, also this vacuum circuit-breaker control data is sent to display module display simultaneously; Then, micro treatment module detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out closing operation, and detects current transformer electric current by current detection module; When detecting that current transformer electric current is greater than zero, then micro treatment module determination vacuum circuit-breaker closing operation completes, and calculate the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, again vacuum circuit-breaker closing operation is completed information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete as vacuum circuit-breaker control data stored in memory module, also this vacuum circuit-breaker control data is sent to display module display simultaneously;
(2) micro treatment module obtains the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module, and using vacuum circuit-breaker sub-gate signal time of reception as vacuum circuit-breaker control data stored in memory module, also this vacuum circuit-breaker control data is sent to display module display simultaneously; Then, micro treatment module controls current detection module according to vacuum circuit-breaker sub-gate signal and detects current transformer electric current; When current transformer electric current is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out sub-switching operation, still detects current transformer electric current by current detection module simultaneously; If when detecting that current transformer electric current is still not more than zero, then micro treatment module determination vacuum circuit-breaker sub-switching operation completes, and calculate the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, again vacuum circuit-breaker sub-switching operation is completed information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete as vacuum circuit-breaker control data stored in memory module, also this vacuum circuit-breaker control data is sent to display module display simultaneously.
Particularly, as shown in Figures 2 to 5, the concrete technical scheme of each parts of Sofe Switch controller that the embodiment of the present invention provides can comprise:
(1) control signal receiver module: to be connected in locomotive electrical system and to receive vacuum circuit-breaker control signal; As shown in Figure 2, vacuum circuit-breaker control signal in locomotive electrical system is transmitted by locomotive control signal positive voltage transmission line and locomotive control signal negative voltage transmission line, and this control signal receiver module can receive vacuum circuit-breaker control signal by following circuit: this circuit can comprise the 2nd photoelectrical coupler U2, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 16th electric capacity C16 and the 3rd voltage stabilizing didoe D3; Corresponding 2nd photoelectrical coupler U2 comprises the 2nd photoelectrical coupler importation diode and the 2nd photoelectrical coupler output triode; The anode of the 2nd photoelectrical coupler importation diode is connected with one end of the 5th resistance R5 with one end of one end of the 6th resistance R6, the 16th electric capacity C16, the negative electrode of the 3rd voltage stabilizing didoe D3, and the other end of the 5th resistance R5 is connected with locomotive control signal positive voltage transmission line; The negative electrode of the 2nd photoelectrical coupler importation diode is connected with the other end of the other end of the 6th resistance R6, the 16th electric capacity C16, the anode of the 3rd voltage stabilizing didoe D3, and is connected with locomotive control signal negative voltage transmission line; The direct ground connection of emitter of the 2nd photoelectrical coupler output triode; The collector electrode of the 2nd photoelectrical coupler output triode is connected with one end of the 7th resistance R7 and micro treatment module respectively, and the other end of the 7th resistance R7 connects the positive 5V voltage output end of power module.In the realizing circuit of this control signal receiver module, the 7th resistance R7 can promote the intensity of the vacuum circuit-breaker control signal outputted in micro treatment module, and protects the normal work of the 2nd photoelectrical coupler U2; 5th resistance R5 protects the 2nd photoelectrical coupler U2 not by the impact of big current, and the electric current of the 2nd photoelectrical coupler U2 is flow through in restriction; 16th electric capacity C16 absorbs pulse voltage, eliminates interference.
(2) voltage detection module: be connected with voltage transformer and detect voltage transformer voltage; As shown in Figure 3, this voltage detection module can be realized by following circuit, and this circuit can comprise: (this electric pressure converter T1 is used for the high voltage of voltage transformer output signal to be converted to low voltage detection to electric pressure converter T1; Such as: this can electric pressure converter T1 can select Micro-Transformer of Voltage chip TV26B01 of the prior art), the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 7th diode D7, the 8th diode D8,6A operational amplifier U6A and 6D operational amplifier U6D; High-voltage anode signal input part and the high voltage negative signal input of electric pressure converter T1 connect with voltage transformer respectively; The low-voltage negative signal output of electric pressure converter T1 is connected with the signal ground end of power module; The low-voltage positive signal output of electric pressure converter T1 is connected with one end of the 21st resistance R21; The other end of the 21st resistance R21 is connected with one end of the 20th resistance R20 and the inverting input of 6A operational amplifier U6A respectively; The other end of the 20th resistance R20 is connected with one end of the 18th resistance R18 and one end of the 19th resistance R19 respectively, and the other end of the 18th resistance R18 connects the positive 3.3V voltage output end of power module; The other end of the 19th resistance R19 connects the signal ground end of power module; The in-phase input end of 6A operational amplifier U6A connects the signal ground end of power module; The output of 6A operational amplifier U6A passes through the inverting input of the 22nd resistance R22 feedback link 6A operational amplifier U6A; The inverting input of 6D operational amplifier U6D is connected with the output of 6A operational amplifier U6A by the 23rd resistance R23 of series connection; The in-phase input end of 6D operational amplifier U6D connects the signal ground end of power module; The output of 6D operational amplifier U6D is connected, simultaneously also by the inverting input of the 24th resistance R24 feedback link 6D operational amplifier U6D with the anode of the 7th diode D7, the negative electrode of the 8th diode D8, one end of the 24th resistance R24 and micro treatment module successively; The negative electrode of the 7th diode D7 connects the positive 5V voltage output end of power module; The anode of the 8th diode D8 connects the power ground end of power module.In the realizing circuit of this voltage detection module, the pull-up resistor that 18th resistance R18 and the 19th resistance R19 is formed, can make the reverse input end of 6A operational amplifier U6A is superimposed with a DC level, thus ensure that the signal outputting to micro treatment module is a direct voltage, with the time enabling micro treatment module correctly judge voltage transformer voltage over zero.
(3) current detection module: be connected with current transformer and detect current transformer electric current; As shown in Figure 4, this current detection module can be realized by following circuit, and this circuit can comprise: the 25th resistance R25, the 26th resistance R26, the 27th resistance R27, the 28th resistance R28, the 29th resistance R29, the 30th resistance R30, the 31st resistance R31, the 9th diode D9, the 10th diode D10,7A operational amplifier U7A, 7B operational amplifier U7B and 7C operational amplifier U7C; The in-phase input end of 7A operational amplifier U7A is connected with current transformer; The inverting input of the output feedback link 7A operational amplifier U7A of 7A operational amplifier U7A, is connected with one end of the 26th resistance R26 simultaneously; The other end of the 26th resistance R26 is connected with one end of the 25th resistance R25, one end of the 27th resistance R27 and the inverting input of 7B operational amplifier U7B respectively; The other end of the 25th resistance R25 is connected with one end of the 30th resistance R30 and one end of the 31st resistance R31 respectively, and the other end of the 30th resistance R30 connects the positive 3.3V voltage output end of power module; The other end of the 31st resistance R31 connects the signal ground end of power module; The in-phase input end of 7B operational amplifier U7B connects the signal ground end of power module; The output of 7B operational amplifier U7B connects the other end of the 27th resistance R27; The inverting input of 7C operational amplifier U7C is connected with the output of 7B operational amplifier U7B by the 28th resistance R28 of series connection; The in-phase input end of 7C operational amplifier U7C connects the signal ground end of power module; The output of 7C operational amplifier U7C is connected, simultaneously also by the inverting input of the 29th resistance R29 feedback link 7C operational amplifier U7C with the anode of the 9th diode D9, the negative electrode of the 10th diode D10, one end of the 29th resistance R29 and micro treatment module successively; The negative electrode of the 9th diode D9 connects the positive 5V voltage output end of power module; The anode of the 10th diode D10 connects the power ground end of power module.In the realizing circuit of this current detection module, the pull-up resistor that 30th resistance R30, the 31st resistance R31 and the 25th resistance R25 are formed, can make the reverse input end of 7B operational amplifier U7B is superimposed with a DC level, thus ensure that the signal outputting to micro treatment module is a direct voltage, with the time enabling micro treatment module correctly judge current transformer current zero-crossing point.
(4) vacuum circuit-breaker operational module: be connected with vacuum circuit-breaker and control that vacuum circuit-breaker carries out closing a floodgate, sub-switching operation; As shown in Figure 5, this vacuum circuit-breaker operational module can be realized by following circuit, this circuit can comprise: the 14th resistance R14, the 16th resistance R16, the 17th resistance R17, the 2nd diode D2, the 6th diode D6, the 3rd triode Q3, the 5th photoelectrical coupler U5 and electronic relay U7 (this electronic relay U7 be mainly used in by high-pressure brake part and low pressure control section isolated, such as: this electronic relay U7 can select the chip PVX6012 that can be bought by commercial means in prior art); The 5th described photoelectrical coupler U5 comprises the 5th photoelectrical coupler importation diode and the 5th photoelectrical coupler output triode; The anode of the 5th photoelectrical coupler importation diode is connected with the control signal high-voltage output terminal of micro treatment module with the 17th resistance R17 by the 2nd diode D2 connected successively; The negative electrode of the 5th photoelectrical coupler importation diode is directly connected with the control signal low-voltage output end of micro treatment module; The base stage of the 3rd triode Q3 protects voltage output end to be connected by the 16th resistance R16 of series connection with the control signal of micro treatment module; The emitter of the 3rd triode Q3 is directly connected with the power ground end of power module; The collector electrode of the 3rd triode Q3 is connected between the 2nd diode D2 of series connection and the 17th resistance R17; The emitter of the 5th photoelectrical coupler output triode is directly connected with the power ground end of power module; The collector electrode of the 5th photoelectrical coupler output triode is connected with the low level signal input of electronic relay U7; The high level signal input of electronic relay U7 is connected with the positive 15V voltage output end of power module by the 14th resistance R14 of series connection; The control signal output of electronic relay U7 is connected with the high voltage control signal input of the negative electrode of the 6th diode D6 and vacuum circuit-breaker drive motors; The anode of the 6th diode D6 is all connected with the negative 110V voltage output end of power module with the low-voltage control signal input of vacuum circuit-breaker drive motors; Vacuum circuit-breaker drive motors connect and drive vacuum circuit-breaker to carry out closing a floodgate, sub-switching operation.In the realizing circuit of this vacuum circuit-breaker operational module, the 17th resistance R17 can limit the electric current of inflow the 5th photoelectrical coupler U5; 6th diode D6 can limit the voltage flowing to vacuum circuit-breaker drive motors, to prevent voltage excessive; 14th resistance R14 is pull-up resistor, can limit the electric current flowing into electronic relay U7.
It should be noted that, micro treatment module described in present specification can be the common treatment circuit be made up of processors such as ARM (ARM is the abbreviation of Advanced RISC Machines, is translated into advanced RISC machines) in prior art; Memory module described in present specification can be the common memory circuit be made up of place's storage chips such as AT24C04, AT29C257 in prior art; Display module described in present specification can be the common display circuit be made up of the display device such as LCDs, digitron display screen in prior art; Power module described in present specification can be by common voltage change-over circuit in prior art, can be stable voltage by the larger voltage transitions of fluctuation range in locomotive electrical system, think that the modules of this Sofe Switch controller is powered.
Visible, the realization of the embodiment of the present invention makes vacuum circuit-breaker carry out closing a floodgate in uncharged situation, sub-switching operation, thus avoids producing electric arc in the inside of vacuum circuit-breaker, extends the useful life of vacuum circuit-breaker.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (7)
1. a soft-switching controller for vacuum circuit breaker, for receiving the vacuum circuit-breaker control signal in locomotive electric power system, and controls that vacuum circuit-breaker carries out closing a floodgate, sub-switching operation; Described locomotive electrical system comprises the vacuum circuit-breaker that elder generation connects with current transformer with voltage transformer parallel connection again; It is characterized in that, this Sofe Switch controller comprises: to be connected in locomotive electrical system and to receive the control signal receiver module of vacuum circuit-breaker control signal, be connected with voltage transformer and detect the voltage detection module of voltage transformer voltage, be connected with current transformer and detect the current detection module of current transformer electric current, be connected with vacuum circuit-breaker and control that vacuum circuit-breaker carries out closing a floodgate, the vacuum circuit-breaker operational module of sub-switching operation, micro treatment module and power module;
Micro treatment module is connected with control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module respectively;
Micro treatment module obtains the vacuum circuit-breaker control signal in locomotive electrical system by control signal receiver module, and detects voltage transformer voltage according to this vacuum circuit-breaker control signal or detect current transformer electric current; Carry out closing a floodgate according to described voltage transformer voltage or current transformer Current Control vacuum circuit-breaker again, sub-switching operation;
Power module is connected with micro treatment module, control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module, and provides electric energy respectively;
Described vacuum circuit-breaker control signal comprises vacuum circuit-breaker switching signal and vacuum circuit-breaker sub-gate signal; Then:
Micro treatment module obtains the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module, and detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out closing operation, and detects current transformer electric current by current detection module; When detecting that current transformer electric current is greater than zero, then micro treatment module determination vacuum circuit-breaker closing operation completes;
Micro treatment module obtains the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module, and controls current detection module detection current transformer electric current according to vacuum circuit-breaker sub-gate signal; When current transformer electric current is not more than zero, micro treatment module controls vacuum circuit-breaker by vacuum circuit-breaker operational module and carries out sub-switching operation, still detects current transformer electric current by current detection module simultaneously; If when detecting that current transformer electric current is still not more than zero, then micro treatment module determination vacuum circuit-breaker sub-switching operation completes.
2. soft-switching controller for vacuum circuit breaker according to claim 1, is characterized in that, also comprises: the memory module stored vacuum circuit-breaker control data under micro treatment module controls; This memory module is connected with micro treatment module and power module respectively;
When to be got the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module when micro treatment module, micro treatment module using vacuum circuit-breaker switching signal time of reception as vacuum circuit-breaker control data stored in memory module; When micro treatment module determination vacuum circuit-breaker closing operation completes, micro treatment module calculates the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, and vacuum circuit-breaker closing operation is completed information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete as vacuum circuit-breaker control data stored in memory module;
And/or,
When to be got the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module when micro treatment module, micro treatment module using vacuum circuit-breaker sub-gate signal time of reception as vacuum circuit-breaker control data stored in memory module; When micro treatment module determination vacuum circuit-breaker sub-switching operation completes, micro treatment module calculates the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, and vacuum circuit-breaker sub-switching operation is completed information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete as vacuum circuit-breaker control data stored in memory module.
3. soft-switching controller for vacuum circuit breaker according to claim 1 and 2, is characterized in that, also comprises: the display module shown vacuum circuit-breaker control data under micro treatment module controls; This display module is connected with micro treatment module and power module respectively;
When to be got the vacuum circuit-breaker switching signal in locomotive electrical system by control signal receiver module when micro treatment module, vacuum circuit-breaker switching signal sends to display module to show as vacuum circuit-breaker control data the time of reception by micro treatment module; When micro treatment module determination vacuum circuit-breaker closing operation completes, micro treatment module calculates the vacuum circuit-breaker closing operation time delay completing the moment from vacuum circuit-breaker switching signal time of reception to vacuum circuit-breaker closing operation, and vacuum circuit-breaker closing operation is completed the information that moment, the time delay of vacuum circuit-breaker closing operation and mark vacuum circuit-breaker closing operation complete and send to display module to show as vacuum circuit-breaker control data;
And/or,
When to be got the vacuum circuit-breaker sub-gate signal in locomotive electrical system by control signal receiver module when micro treatment module, vacuum circuit-breaker sub-gate signal sends to display module to show as vacuum circuit-breaker control data the time of reception by micro treatment module; When micro treatment module determination vacuum circuit-breaker sub-switching operation completes, micro treatment module calculates the vacuum circuit-breaker sub-switching operation time delay completing the moment from vacuum circuit-breaker sub-gate signal time of reception to vacuum circuit-breaker sub-switching operation, and vacuum circuit-breaker sub-switching operation is completed the information that moment, the time delay of vacuum circuit-breaker sub-switching operation and mark vacuum circuit-breaker sub-switching operation complete and send to display module to show as vacuum circuit-breaker control data.
4. soft-switching controller for vacuum circuit breaker according to claim 1 and 2, it is characterized in that, described control signal receiver module comprises: the 2nd photoelectrical coupler (U2), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 16th electric capacity (C16) and the 3rd voltage stabilizing didoe (D3);
Vacuum circuit-breaker control signal in locomotive electrical system is transmitted by locomotive control signal positive voltage transmission line and locomotive control signal negative voltage transmission line;
The 2nd described photoelectrical coupler (U2) comprises the 2nd photoelectrical coupler importation diode and the 2nd photoelectrical coupler output triode;
The anode of the 2nd photoelectrical coupler importation diode is connected with one end of the 5th resistance (R5) with one end of one end of the 6th resistance (R6), the 16th electric capacity (C16), the negative electrode of the 3rd voltage stabilizing didoe (D3), and the other end of the 5th resistance (R5) is connected with locomotive control signal positive voltage transmission line;
The negative electrode of the 2nd photoelectrical coupler importation diode is connected with the other end of the other end of the 6th resistance (R6), the 16th electric capacity (C16), the anode of the 3rd voltage stabilizing didoe (D3), and is connected with locomotive control signal negative voltage transmission line;
The direct ground connection of emitter of the 2nd photoelectrical coupler output triode; The collector electrode of the 2nd photoelectrical coupler output triode is connected with one end of the 7th resistance (R7) and micro treatment module respectively, and the other end of the 7th resistance (R7) connects the positive 5V voltage output end of power module.
5. soft-switching controller for vacuum circuit breaker according to claim 1 and 2, it is characterized in that, described voltage detection module comprises: electric pressure converter (T1), the 18th resistance (R18), the 19th resistance (R19), the 20th resistance (R20), the 21st resistance (R21), the 22nd resistance (R22), the 23rd resistance (R23), the 24th resistance (R24), the 7th diode (D7), the 8th diode (D8), 6A operational amplifier (U6A) and 6D operational amplifier (U6D);
High-voltage anode signal input part and the high voltage negative signal input of electric pressure converter (T1) connect with voltage transformer respectively; The low-voltage negative signal output of electric pressure converter (T1) is connected with the signal ground end of power module; The low-voltage positive signal output of electric pressure converter (T1) is connected with one end of the 21st resistance (R21);
The other end of the 21st resistance (R21) is connected with one end of the 20th resistance (R20) and the inverting input of 6A operational amplifier (U6A) respectively;
The other end of the 20th resistance (R20) is connected with one end of the 18th resistance (R18) and one end of the 19th resistance (R19) respectively, and the other end of the 18th resistance (R18) connects the positive 3.3V voltage output end of power module; The other end of the 19th resistance (R19) connects the signal ground end of power module;
The in-phase input end of 6A operational amplifier (U6A) connects the signal ground end of power module; The output of 6A operational amplifier (U6A) passes through the inverting input of the 22nd resistance (R22) feedback link 6A operational amplifier (U6A);
The inverting input of 6D operational amplifier (U6D) is connected with the output of 6A operational amplifier (U6A) by the 23rd resistance (R23) of series connection; The in-phase input end of 6D operational amplifier (U6D) connects the signal ground end of power module; The output of 6D operational amplifier (U6D) is connected, simultaneously also by the inverting input of the 24th resistance (R24) feedback link 6D operational amplifier (U6D) with the anode of the 7th diode (D7), the negative electrode of the 8th diode (D8), one end of the 24th resistance (R24) and micro treatment module successively;
The negative electrode of the 7th diode (D7) connects the positive 5V voltage output end of power module; The anode of the 8th diode (D8) connects the power ground end of power module.
6. soft-switching controller for vacuum circuit breaker according to claim 1 and 2, it is characterized in that, described current detection module comprises: the 25th resistance (R25), the 26th resistance (R26), the 27th resistance (R27), the 28th resistance (R28), the 29th resistance (R29), the 30th resistance (R30), the 31st resistance (R31), the 9th diode (D9), the 10th diode (D10), 7A operational amplifier (U7A), 7B operational amplifier (U7B) and 7C operational amplifier (U7C);
The in-phase input end of 7A operational amplifier (U7A) is connected with current transformer; The inverting input of output feedback link 7A operational amplifier (U7A) of 7A operational amplifier (U7A), is connected with one end of the 26th resistance (R26) simultaneously;
The other end of the 26th resistance (R26) is connected with one end of the 25th resistance (R25), one end of the 27th resistance (R27) and the inverting input of 7B operational amplifier (U7B) respectively;
The other end of the 25th resistance (R25) is connected with one end of the 30th resistance (R30) and one end of the 31st resistance (R31) respectively, and the other end of the 30th resistance (R30) connects the positive 3.3V voltage output end of power module; The other end of the 31st resistance (R31) connects the signal ground end of power module;
The in-phase input end of 7B operational amplifier (U7B) connects the signal ground end of power module; The output of 7B operational amplifier (U7B) connects the other end of the 27th resistance (R27);
The inverting input of 7C operational amplifier (U7C) is connected with the output of 7B operational amplifier (U7B) by the 28th resistance (R28) of series connection; The in-phase input end of 7C operational amplifier (U7C) connects the signal ground end of power module; The output of 7C operational amplifier (U7C) is connected, simultaneously also by the inverting input of the 29th resistance (R29) feedback link 7C operational amplifier (U7C) with the anode of the 9th diode (D9), the negative electrode of the 10th diode (D10), one end of the 29th resistance (R29) and micro treatment module successively;
The negative electrode of the 9th diode (D9) connects the positive 5V voltage output end of power module; The anode of the 10th diode (D10) connects the power ground end of power module.
7. soft-switching controller for vacuum circuit breaker according to claim 1 and 2, it is characterized in that, described vacuum circuit-breaker operational module comprises: the 14th resistance (R14), the 16th resistance (R16), the 17th resistance (R17), the 2nd diode (D2), the 6th diode (D6), the 3rd triode (Q3), the 5th photoelectrical coupler (U5) and electronic relay (U7);
The 5th described photoelectrical coupler (U5) comprises the 5th photoelectrical coupler importation diode and the 5th photoelectrical coupler output triode;
The anode of the 5th photoelectrical coupler importation diode is connected with the control signal high-voltage output terminal of micro treatment module with the 17th resistance (R17) by the 2nd diode (D2) of connecting successively; The negative electrode of the 5th photoelectrical coupler importation diode is directly connected with the control signal low-voltage output end of micro treatment module;
The base stage of the 3rd triode (Q3) protects voltage output end to be connected by the 16th resistance (R16) of series connection with the control signal of micro treatment module; The emitter of the 3rd triode (Q3) is directly connected with the power ground end of power module; The collector electrode of the 3rd triode (Q3) is connected between the 2nd diode (D2) of series connection and the 17th resistance (R17);
The emitter of the 5th photoelectrical coupler output triode is directly connected with the power ground end of power module; The collector electrode of the 5th photoelectrical coupler output triode is connected with the low level signal input of electronic relay (U7);
The high level signal input of electronic relay (U7) is connected with the positive 15V voltage output end of power module by the 14th resistance (R14) of series connection; The control signal output of electronic relay (U7) is connected with the negative electrode of the 6th diode (D6) and the high voltage control signal input of vacuum circuit-breaker drive motors;
The anode of the 6th diode (D6) is all connected with the negative 110V voltage output end of power module with the low-voltage control signal input of vacuum circuit-breaker drive motors;
Vacuum circuit-breaker drive motors connect and drive vacuum circuit-breaker to carry out closing a floodgate, sub-switching operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460566.9A CN102522261B (en) | 2011-12-31 | 2011-12-31 | Soft-switching controller for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460566.9A CN102522261B (en) | 2011-12-31 | 2011-12-31 | Soft-switching controller for vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522261A CN102522261A (en) | 2012-06-27 |
| CN102522261B true CN102522261B (en) | 2015-06-10 |
Family
ID=46293145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110460566.9A Active CN102522261B (en) | 2011-12-31 | 2011-12-31 | Soft-switching controller for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102522261B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117195A (en) * | 2012-08-29 | 2013-05-22 | 胡颖楠 | Sulfur hexafluoride breaker intelligent opening-and-closing brake operation mechanism |
| CN107290660A (en) * | 2017-08-01 | 2017-10-24 | 浙江方圆电气设备检测有限公司 | A kind of miniature circuit breaker detecting system |
| CN109030940A (en) * | 2018-05-18 | 2018-12-18 | 江苏伊莱尔电力科技有限公司 | A kind of online method for monitoring harmonic wave of electric power |
| CN109343411A (en) * | 2018-10-31 | 2019-02-15 | 广东电网有限责任公司 | On-load voltage regulation mechanism controls circuit monitoring system |
| CN112269083A (en) * | 2020-10-20 | 2021-01-26 | 江苏新安电器股份有限公司 | Control panel voltage detection and conversion device for automatic test equipment |
| CN114325367A (en) * | 2021-12-13 | 2022-04-12 | 江苏现代电力科技股份有限公司 | Online monitoring device and monitoring method for stroke track of circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725408A (en) * | 2002-09-10 | 2006-01-25 | 三菱电机株式会社 | Controller and control method of circuit breaker |
| CN101055814A (en) * | 2007-02-14 | 2007-10-17 | 宁波天安（集团）股份有限公司 | High voltage vacuum breaker |
| CN101227089A (en) * | 2008-01-21 | 2008-07-23 | 孙嘉宁 | Discriminating and protecting method and apparatus for eliminating single phase ground fault by neutral point non-useful earthing electric network |
-
2011
- 2011-12-31 CN CN201110460566.9A patent/CN102522261B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725408A (en) * | 2002-09-10 | 2006-01-25 | 三菱电机株式会社 | Controller and control method of circuit breaker |
| CN101055814A (en) * | 2007-02-14 | 2007-10-17 | 宁波天安（集团）股份有限公司 | High voltage vacuum breaker |
| CN101227089A (en) * | 2008-01-21 | 2008-07-23 | 孙嘉宁 | Discriminating and protecting method and apparatus for eliminating single phase ground fault by neutral point non-useful earthing electric network |
Non-Patent Citations (2)
| Title |
|---|
| 框架式断路器智能控制器的研制;王朝霞;《中国知网学位论文数据库》;20070807;第25-28页 * |
| 相控开关技术在电力机车自动过分相中的应用研究;张薇;《中国知网学位论文数据库》;20090415;第8-16页，第53-61页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102522261A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102522261B (en) | Soft-switching controller for vacuum circuit breaker | |
| CN102097948A (en) | High potential direct current (DC) voltage energy-taking power supply | |
| CN204391679U (en) | A kind of leakage current detection protection circuit | |
| CN101997434A (en) | Synchronous rectification device | |
| CN101887082B (en) | Three-phase power input phase-loss detection circuit | |
| CN201898347U (en) | Power electronic equipment bus capacitor discharging device | |
| CN103401468B (en) | A kind of plasma arc striking circuit | |
| CN105691245B (en) | A kind of electric locomotive is without impact subregion commutation system and method | |
| CN205051933U (en) | LED driving power supply | |
| CN104578385A (en) | Uninterruptible power supply | |
| CN204290775U (en) | A kind of tri-level circuit of high fault tolerance | |
| CN105680556A (en) | Dual-power-source power supply circuit for outputting multi-voltage direct current | |
| CN203351509U (en) | A bidirectional combined relay switch | |
| CN105356564A (en) | Wireless energy receiving system | |
| CN202405171U (en) | Soft switch controller for vacuum circuit breaker | |
| CN101958680A (en) | High precision control device of windmill generator damp load | |
| CN107154730B (en) | A kind of generation of electricity by new energy two-way changing circuit and control method | |
| CN101141096B (en) | Bridge type closedown detection circuit | |
| CN103715965A (en) | Motor controller with anti-reverse connection protection | |
| CN208797565U (en) | A kind of overvoltage crowbar for direct current operative power source input | |
| CN104009528A (en) | Storage battery charging circuit and charging method thereof | |
| CN203853658U (en) | Output short-circuit protection circuit of welding machine | |
| CN110356257A (en) | Power conversion circuits, device, controller and the electric locomotive of electric locomotive | |
| CN209462022U (en) | A kind of vehicle-mounted DC/DC converter prevents output reverse-connection damage circuit | |
| CN214101178U (en) | Output bleeder circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |