CN102522261A - Soft-switching controller for vacuum circuit breaker - Google Patents
Soft-switching controller for vacuum circuit breaker Download PDFInfo
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- CN102522261A CN102522261A CN2011104605669A CN201110460566A CN102522261A CN 102522261 A CN102522261 A CN 102522261A CN 2011104605669 A CN2011104605669 A CN 2011104605669A CN 201110460566 A CN201110460566 A CN 201110460566A CN 102522261 A CN102522261 A CN 102522261A
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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 the locomotive electric power system and use switchgear, relate in particular to a kind of vacuum circuit-breaker and use soft on-off controller.
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 carrying out the circuit of frequent operation or fast shut-off, thereby in the electric power system of all trades and professions, has all obtained using widely.In the locomotive electric power system, vacuum circuit-breaker mainly is used in the capacity load circuit, normally connects with a current transformer after vacuum circuit-breaker and the voltage transformer parallel connection again; At present, employed vacuum circuit-breaker all adopts the working method of direct combined floodgate, direct separating brake on the locomotive, promptly after obtaining combined floodgate or sub-gate signal, closes a floodgate at once or the separating brake action; But; Vacuum circuit-breaker generally all is to carry out these operations under the charged situation, so very easily produces electric arc in the inside of vacuum circuit-breaker, and this will cause corrosion significantly to the contact of vacuum circuit-breaker; Even might cause an explosion accident, this has shortened the useful life of vacuum circuit-breaker.
Summary of the invention
The purpose of this invention is to provide a kind of vacuum circuit-breaker and use soft on-off controller; Vacuum circuit-breaker closes a floodgate under uncharged situation, sub-switching operation so that make; Thereby avoid producing electric arc, prolong the useful life of vacuum circuit-breaker in the inside of vacuum circuit-breaker.
The objective of the invention is to realize through following technical scheme:
A kind of vacuum circuit-breaker is used soft on-off controller, is used for receiving the vacuum circuit-breaker control signal of locomotive electric power system, and the control vacuum circuit-breaker closes a floodgate, sub-switching operation; Described locomotive electric power system comprises the vacuum circuit-breaker that elder generation and voltage transformer parallel connection are connected with current transformer again; This soft on-off controller comprises: be connected in the locomotive electric power system and receive the control signal receiver module of vacuum circuit-breaker control signal; The voltage detection module that is connected and detects voltage transformer voltage with voltage transformer; The current detection module that is connected and detects the current transformer electric current with current transformer; Be connected with vacuum circuit-breaker and control that vacuum circuit-breaker closes 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 the locomotive electric power system through the control signal receiver module, and detects voltage transformer voltage or detect the current transformer electric current according to this vacuum circuit-breaker control signal; Again according to described voltage transformer voltage or current transformer Current Control vacuum circuit-breaker close a floodgate, 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 electric energy is provided.
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 the locomotive electric power system through the control signal receiver module, and detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage was not more than zero, micro treatment module carried out closing operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, and detects the current transformer electric current through current detection module; When detecting the current transformer electric current greater than zero the time, then micro treatment module confirms that the vacuum circuit-breaker closing operation accomplishes;
And/or,
Micro treatment module obtains the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, and detects the current transformer electric current according to vacuum circuit-breaker sub-gate signal Control current detection module; When the current transformer electric current was not more than zero, micro treatment module carried out sub-switching operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, still detects the current transformer electric current through current detection module simultaneously; If when detecting the current transformer electric current and still being not more than zero, then micro treatment module confirms that the vacuum circuit-breaker sub-switching operation accomplishes.
Preferably, also comprise: the memory module of under micro treatment module control, the vacuum circuit-breaker control data being stored; This memory module is connected with power module with micro treatment module respectively;
When micro treatment module got access to the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, micro treatment module deposited the vacuum circuit-breaker switching signal in memory module as the vacuum circuit-breaker control data time of reception; When micro treatment module confirms that the vacuum circuit-breaker closing operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker switching signal and accomplishes vacuum circuit-breaker closing operation time-delay constantly to the vacuum circuit-breaker closing operation time of reception, and the information that the vacuum circuit-breaker closing operation completion moment, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished deposits memory module in as the vacuum circuit-breaker control data;
And/or,
When micro treatment module got access to the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, micro treatment module deposited the vacuum circuit-breaker sub-gate signal in memory module as the vacuum circuit-breaker control data time of reception; When micro treatment module confirms that the vacuum circuit-breaker sub-switching operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker sub-gate signal and accomplishes vacuum circuit-breaker sub-switching operation time-delay constantly to the vacuum circuit-breaker sub-switching operation time of reception, and the information that the vacuum circuit-breaker sub-switching operation completion moment, the time-delay of vacuum circuit-breaker sub-switching operation and sign vacuum circuit-breaker sub-switching operation are accomplished deposits memory module in as the vacuum circuit-breaker control data.
Preferably, also comprise: the display module that under micro treatment module control, the vacuum circuit-breaker control data is shown; This display module is connected with power module with micro treatment module respectively;
When micro treatment module got access to the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, micro treatment module sent to the display module demonstration as the vacuum circuit-breaker control data with the vacuum circuit-breaker switching signal time of reception; When micro treatment module confirms that the vacuum circuit-breaker closing operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker switching signal and accomplishes vacuum circuit-breaker closing operation time-delay constantly to the vacuum circuit-breaker closing operation time of reception, and the information that the vacuum circuit-breaker closing operation completion moment, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished sends to the display module demonstration as the vacuum circuit-breaker control data;
And/or,
When micro treatment module got access to the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, micro treatment module sent to the display module demonstration as the vacuum circuit-breaker control data with the vacuum circuit-breaker sub-gate signal time of reception; When micro treatment module confirms that the vacuum circuit-breaker sub-switching operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker sub-gate signal and accomplishes vacuum circuit-breaker sub-switching operation time-delay constantly to the vacuum circuit-breaker sub-switching operation time of reception, and the information that the vacuum circuit-breaker sub-switching operation completion moment, the time-delay of vacuum circuit-breaker sub-switching operation and sign vacuum circuit-breaker sub-switching operation are accomplished sends to the display module demonstration as the vacuum circuit-breaker control data.
Preferably, the control signal corresponding receiver module comprises: the 2nd photoelectrical coupler U2, the 5th resistance R the 5, the 6th resistance R the 6, the 7th resistance R the 7, the 16th capacitor C 16 and the 3rd voltage stabilizing didoe D3;
Vacuum circuit-breaker control signal in the locomotive electric power system is transmitted through locomotive control signal positive voltage transmission line and locomotive control signal negative voltage transmission line;
Described the 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 links to each other with an end of the 6th resistance R 6, an end of the 16th capacitor C 16, the negative electrode of the 3rd voltage stabilizing didoe D3 and an end of the 5th resistance R 5, and the other end of the 5th resistance R 5 is connected with locomotive control signal positive voltage transmission line;
The negative electrode of the 2nd photoelectrical coupler importation diode links to each other with the other end of the other end of the 6th resistance R 6, the 16th capacitor C 16, the anode of the 3rd voltage stabilizing didoe D3, and links to each other 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 micro treatment module with an end of the 7th resistance R 7 respectively, and the other end of the 7th resistance R 7 connects the positive 5V voltage output end of power module.
Preferably, the correspondent voltage detection module comprises: electric pressure converter T1, the 18th resistance R the 18, the 19th resistance R the 19, the 20th resistance R the 20, the 21st resistance R the 21, the 22nd resistance R the 22, the 23rd resistance R the 23, the 24th resistance R the 24, the 7th diode D7, the 8th diode D8,6A operational amplifier U6A and 6D operational amplifier U6D;
The high-voltage anode signal input part of electric pressure converter T1 and high voltage negative signal input join 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 an end of the 21st resistance R 21;
The other end of the 21st resistance R 21 is connected with an end of the 20th resistance R 20 and the inverting input of 6A operational amplifier U6A respectively;
The other end of the 20th resistance R 20 is connected with an end of the 18th resistance R 18 and an end of the 19th resistance R 19 respectively, and the other end of the 18th resistance R 18 connects the positive 3.3V voltage output end of power module; The other end of the 19th resistance R 19 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 connects the inverting input of 6A operational amplifier U6A through the 22nd resistance R 22 feedbacks;
The inverting input of 6D operational amplifier U6D is connected with the output of 6A operational amplifier U6A through the 23rd resistance R 23 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 with micro treatment module with the anode of the 7th diode D7, the negative electrode company of the 8th diode D8, an end of the 24th resistance R 24 successively, also connects the inverting input of 6D operational amplifier U6D simultaneously through the 24th resistance R 24 feedbacks;
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 R the 25, the 26th resistance R the 26, the 27th resistance R the 27, the 28th resistance R the 28, the 29th resistance R the 29, the 30th resistance R the 30, the 31st resistance R the 31, 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 output feedback of 7A operational amplifier U7A connects the inverting input of 7A operational amplifier U7A, is connected with an end of the 26th resistance R 26 simultaneously;
The other end of the 26th resistance R 26 is connected with an end of the 25th resistance R 25, an end of the 27th resistance R 27 and the inverting input of 7B operational amplifier U7B respectively;
The other end of the 25th resistance R 25 is connected with an end of the 30th resistance R 30 and an end of the 31st resistance R 31 respectively, and the other end of the 30th resistance R 30 connects the positive 3.3V voltage output end of power module; The other end of the 31st resistance R 31 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 R 27;
The inverting input of 7C operational amplifier U7C is connected with the output of 7B operational amplifier U7B through the 28th resistance R 28 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 with micro treatment module with the anode of the 9th diode D9, the negative electrode company of the 10th diode D10, an end of the 29th resistance R 29 successively, also connects the inverting input of 7C operational amplifier U7C simultaneously through the 29th resistance R 29 feedbacks;
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 R the 14, the 16th resistance R the 16, the 17th resistance R the 17, the 2nd diode D2, the 6th diode D6, the 3rd triode Q3, the 5th photoelectrical coupler U5 and electronic relay U7;
Described the 5th 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 R 17 through the 6th diode D6 of series connection successively; The negative electrode of the 5th photoelectrical coupler importation diode directly is connected with the control signal low-voltage output of micro treatment module;
The base stage of the 3rd triode Q3 is connected with the control signal protection voltage output end of micro treatment module through the 16th resistance R 16 of series connection; The emitter of the 3rd triode Q3 directly is connected with the power ground end of power module; The collector electrode of the 3rd triode Q3 is connected between the 6th diode D6 and the 17th resistance R 17 of series connection;
The emitter of the 5th photoelectrical coupler output triode directly is 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 through the 14th resistance R 14 of series connection; The control signal output ends of electronic relay U7 is connected with the negative electrode of the 6th diode D6 and the high voltage signal input end of vacuum circuit-breaker drive motors;
The low-voltage signal input end of the anode of the 6th diode D6 and vacuum circuit-breaker drive motors all is connected with the negative 110V voltage output end of power module;
The vacuum circuit-breaker drive motors connects and the driving vacuum circuit-breaker closes a floodgate, sub-switching operation.
Technical scheme by the invention described above provides can find out that the vacuum circuit-breaker that the embodiment of the invention provides obtains the vacuum circuit-breaker control signal in the locomotive electric power system with soft on-off controller through the control signal receiver module; If this vacuum circuit-breaker control signal is the vacuum circuit-breaker switching signal, control then that voltage detection module detects voltage transformer voltage and when voltage transformer voltage is not more than zero the control vacuum circuit-breaker carry out closing operation; If this vacuum circuit-breaker control signal is the vacuum circuit-breaker sub-gate signal, then the Control current detection module detects the current transformer electric current and when the current transformer electric current is not more than zero, controls vacuum circuit-breaker and carry out sub-switching operation; This shows that the embodiment of the invention makes that vacuum circuit-breaker can close a floodgate, sub-switching operation under uncharged situation, thereby avoided producing electric arc, prolonged the useful life of vacuum circuit-breaker in the inside of vacuum circuit-breaker.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the soft on-off controller that Fig. 1 provides for the embodiment of the invention;
The circuit theory sketch map of the control signal receiver module that Fig. 2 provides for the embodiment of the invention;
The circuit theory sketch map of the voltage detection module that Fig. 3 provides for the embodiment of the invention;
The circuit theory sketch map of the current detection module that Fig. 4 provides for the embodiment of the invention;
The circuit theory sketch map of the vacuum circuit-breaker operational module that Fig. 5 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
Need to prove that at first in the locomotive electric power system, vacuum circuit-breaker is used in the capacity load circuit usually; At least comprise a vacuum circuit-breaker, a voltage transformer and a current transformer in these capacity load circuit, and vacuum circuit-breaker all is to connect with current transformer with the voltage transformer parallel connection earlier again.The vacuum circuit-breaker that the embodiment of the invention provides is exactly the vacuum circuit-breaker control signal that in these capacity load circuit, receives the locomotive electric power system with soft on-off controller, and the control vacuum circuit-breaker closes a floodgate, sub-switching operation.Below just will combine accompanying drawing that the embodiment of the invention is described in detail.
To shown in Figure 5, a kind of vacuum circuit-breaker is used soft on-off controller, is used for receiving the vacuum circuit-breaker control signal of locomotive electric power system like Fig. 1, and the control vacuum circuit-breaker closes 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 the locomotive electric power system through the control signal receiver module; Detect voltage transformer voltage or detect the current transformer electric current according to this vacuum circuit-breaker control signal again, then according to this voltage transformer voltage or current transformer Current Control vacuum circuit-breaker close a floodgate, 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 regulated power is provided for these modules.
Wherein, corresponding vacuum circuit-breaker control signal can comprise vacuum circuit-breaker switching signal and vacuum circuit-breaker sub-gate signal, and then this soft on-off controller detailed process of controlling vacuum circuit-breaker can comprise following at least a:
(1) micro treatment module obtains the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, and detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage was not more than zero, micro treatment module carried out closing operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, and detects the current transformer electric current through current detection module; When detecting the current transformer electric current greater than zero the time, then micro treatment module confirms that the vacuum circuit-breaker closing operation accomplishes;
(2) micro treatment module obtains the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, and detects the current transformer electric current according to vacuum circuit-breaker sub-gate signal Control current detection module; When the current transformer electric current was not more than zero, micro treatment module carried out sub-switching operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, still detects the current transformer electric current through current detection module simultaneously; If when detecting the current transformer electric current and still being not more than zero, then micro treatment module confirms that the vacuum circuit-breaker sub-switching operation accomplishes.
Particularly, in practical application, this soft on-off controller control vacuum circuit-breaker can also comprise with lower component:
(1) memory module: be connected with power module with micro treatment module, and under micro treatment module control, the vacuum circuit-breaker control data stored; Corresponding vacuum circuit-breaker control data can comprise: the information that vacuum circuit-breaker switching signal time of reception, vacuum circuit-breaker closing operation are accomplished constantly, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished, and then this vacuum circuit-breaker control data can comprise at least a the following technical scheme from the detailed process that gets access to storage:
1. when micro treatment module got access to the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, micro treatment module deposited the vacuum circuit-breaker switching signal in memory module as the vacuum circuit-breaker control data time of reception; When micro treatment module confirms that the vacuum circuit-breaker closing operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker switching signal and accomplishes vacuum circuit-breaker closing operation time-delay constantly to the vacuum circuit-breaker closing operation time of reception, and the information that the vacuum circuit-breaker closing operation completion moment, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished deposits memory module in as the vacuum circuit-breaker control data;
2. when micro treatment module got access to the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, micro treatment module deposited the vacuum circuit-breaker sub-gate signal in memory module as the vacuum circuit-breaker control data time of reception; When micro treatment module confirms that the vacuum circuit-breaker sub-switching operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker sub-gate signal and accomplishes vacuum circuit-breaker sub-switching operation time-delay constantly to the vacuum circuit-breaker sub-switching operation time of reception, and the information that the vacuum circuit-breaker sub-switching operation completion moment, the time-delay of vacuum circuit-breaker sub-switching operation and sign vacuum circuit-breaker sub-switching operation are accomplished deposits memory module in as the vacuum circuit-breaker control data.
(2) display module: be connected with power module with micro treatment module, and under micro treatment module control, the vacuum circuit-breaker control data shown; Corresponding vacuum circuit-breaker control data can comprise: the information that vacuum circuit-breaker switching signal time of reception, vacuum circuit-breaker closing operation are accomplished constantly, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished, and then this vacuum circuit-breaker control data can comprise at least a the following technical scheme from the detailed process that gets access to demonstration:
1. when micro treatment module got access to the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, micro treatment module sent to the display module demonstration as the vacuum circuit-breaker control data with the vacuum circuit-breaker switching signal time of reception; When micro treatment module confirms that the vacuum circuit-breaker closing operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker switching signal and accomplishes vacuum circuit-breaker closing operation time-delay constantly to the vacuum circuit-breaker closing operation time of reception, and the information that the vacuum circuit-breaker closing operation completion moment, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished sends to the display module demonstration as the vacuum circuit-breaker control data;
2. when micro treatment module got access to the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, micro treatment module sent to the display module demonstration as the vacuum circuit-breaker control data with the vacuum circuit-breaker sub-gate signal time of reception; When micro treatment module confirms that the vacuum circuit-breaker sub-switching operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker sub-gate signal and accomplishes vacuum circuit-breaker sub-switching operation time-delay constantly to the vacuum circuit-breaker sub-switching operation time of reception, and the information that the vacuum circuit-breaker sub-switching operation completion moment, the time-delay of vacuum circuit-breaker sub-switching operation and sign vacuum circuit-breaker sub-switching operation are accomplished sends to the display module demonstration as the vacuum circuit-breaker control data.
Further; The vacuum circuit-breaker that the embodiment of the invention provides is with the operation principle of soft on-off controller: because in the locomotive electric power system; Vacuum circuit-breaker all is to connect with current transformer with the voltage transformer parallel connection earlier 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 the vacuum circuit-breaker gate-dividing state, if the detected voltage transformer voltage of voltage detection module is not more than zero, then the voltage of vacuum circuit-breaker also is not more than zero, that is to say that the vacuum circuit-breaker of this moment is in not electriferous state, can carry out closing operation; Owing to after vacuum circuit-breaker closes a floodgate, can produce electric current in the vacuum circuit-breaker,, show the success of vacuum circuit-breaker closing operation greater than zero through the detected current transformer electric current of current detection module therefore if after carrying out closing operation.Under the vacuum circuit-breaker "on" position, the detected current transformer electric current of current detection module is not more than zero, and the electric current of the vacuum circuit-breaker of then flowing through also is not more than zero, that is to say that the vacuum circuit-breaker of this moment is in not electriferous state, can carry out sub-switching operation; Owing to behind the vacuum circuit-breaker separating brake, will not have electric current in the vacuum circuit-breaker, and, still be not more than zero through the detected current transformer electric current of current detection module and show the success of vacuum circuit-breaker sub-switching operation therefore if after carrying out sub-switching operation.This shows that the embodiment of the invention can make that vacuum circuit-breaker closes a floodgate, sub-switching operation under uncharged situation, thereby avoided producing electric arc, prolonged the useful life of vacuum circuit-breaker in the inside of vacuum circuit-breaker.
For making the object of the invention, technical scheme and advantage clearer, enumerate embodiment below and combine accompanying drawing, the embodiment of the invention is done to describe in detail further.
Embodiment one
To shown in Figure 5, a kind of vacuum circuit-breaker is used soft on-off controller, is used for receiving the vacuum circuit-breaker control signal of locomotive electric power system like Fig. 1, and the control vacuum circuit-breaker closes 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 display module with control signal receiver module, voltage detection module, current detection module, vacuum circuit-breaker operational module, memory 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 regulated power is provided for these modules.
Wherein, corresponding vacuum circuit-breaker control signal can comprise vacuum circuit-breaker switching signal and vacuum circuit-breaker sub-gate signal, and then this soft on-off controller detailed process of controlling vacuum circuit-breaker can comprise following at least a:
(1) micro treatment module obtains the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module; And deposit the vacuum circuit-breaker switching signal in memory module as the vacuum circuit-breaker control data time of reception, also this vacuum circuit-breaker control data is sent to display module simultaneously and show; Then, micro treatment module detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage was not more than zero, micro treatment module carried out closing operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, and detects the current transformer electric current through current detection module; When detecting the current transformer electric current greater than zero the time; Then micro treatment module is confirmed the completion of vacuum circuit-breaker closing operation; And calculate from the vacuum circuit-breaker closing operation time-delay in the time of reception to the vacuum circuit-breaker closing operation completion moment of vacuum circuit-breaker switching signal; Deposit the information that the vacuum circuit-breaker closing operation is accomplished constantly, the vacuum circuit-breaker closing operation is delayed time and sign vacuum circuit-breaker closing operation is accomplished in memory module as the vacuum circuit-breaker control data again, also this vacuum circuit-breaker control data is sent to display module simultaneously and show;
(2) micro treatment module obtains the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module; And deposit the vacuum circuit-breaker sub-gate signal in memory module as the vacuum circuit-breaker control data time of reception, also this vacuum circuit-breaker control data is sent to display module simultaneously and show; Then, micro treatment module detects the current transformer electric current according to vacuum circuit-breaker sub-gate signal Control current detection module; When the current transformer electric current was not more than zero, micro treatment module carried out sub-switching operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, still detects the current transformer electric current through current detection module simultaneously; If when detecting the current transformer electric current and still being not more than zero; Then micro treatment module is confirmed the completion of vacuum circuit-breaker sub-switching operation; And calculate from the vacuum circuit-breaker sub-switching operation time-delay in the time of reception to the vacuum circuit-breaker sub-switching operation completion moment of vacuum circuit-breaker sub-gate signal; Deposit the information that the vacuum circuit-breaker sub-switching operation is accomplished constantly, the vacuum circuit-breaker sub-switching operation is delayed time and sign vacuum circuit-breaker sub-switching operation is accomplished in memory module as the vacuum circuit-breaker control data again, also this vacuum circuit-breaker control data is sent to display module simultaneously and show.
Particularly, to shown in Figure 5, the concrete technical scheme of each parts of the soft on-off controller that the embodiment of the invention provided can comprise like Fig. 2:
(1) control signal receiver module: be connected in the locomotive electric power system and receive the vacuum circuit-breaker control signal; As shown in Figure 2; Vacuum circuit-breaker control signal in the locomotive electric power system is transmitted through locomotive control signal positive voltage transmission line and locomotive control signal negative voltage transmission line, and this control signal receiver module can receive the vacuum circuit-breaker control signal through following circuit: this circuit can comprise the 2nd photoelectrical coupler U2, the 5th resistance R the 5, the 6th resistance R the 6, the 7th resistance R the 7, the 16th capacitor C 16 and the 3rd voltage stabilizing didoe D3; Corresponding the 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 links to each other with an end of the 6th resistance R 6, an end of the 16th capacitor C 16, the negative electrode of the 3rd voltage stabilizing didoe D3 and an end of the 5th resistance R 5, and the other end of the 5th resistance R 5 is connected with locomotive control signal positive voltage transmission line; The negative electrode of the 2nd photoelectrical coupler importation diode links to each other with the other end of the other end of the 6th resistance R 6, the 16th capacitor C 16, the anode of the 3rd voltage stabilizing didoe D3, and links to each other 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 micro treatment module with an end of the 7th resistance R 7 respectively, and the other end of the 7th resistance R 7 connects the positive 5V voltage output end of power module.In the realization circuit of this control signal receiver module, the 7th resistance R 7 can promote the intensity of the vacuum circuit-breaker control signal that outputs in the micro treatment module, and protects the operate as normal of the 2nd photoelectrical coupler U2; The 5th resistance R 5 protections the 2nd photoelectrical coupler U2 does not receive the impact of big electric current, and the electric current of the 2nd photoelectrical coupler U2 is flow through in restriction; The 16th capacitor C 16 absorbs pulse voltage, eliminates and disturbs.
(2) voltage detection module: be connected with voltage transformer and detect voltage transformer voltage; As shown in Figure 3, this voltage detection module can realize that this circuit can comprise through following circuit: (the high voltage output conversion of signals that this electric pressure converter T1 is used for voltage transformer is a low voltage detection to electric pressure converter T1; For example: can select miniature voltage transformer chip TV26B01 of the prior art for use), the 18th resistance R the 18, the 19th resistance R the 19, the 20th resistance R the 20, the 21st resistance R the 21, the 22nd resistance R the 22, the 23rd resistance R the 23, the 24th resistance R the 24, the 7th diode D7, the 8th diode D8,6A operational amplifier U6A and 6D operational amplifier U6D but be somebody's turn to do electric pressure converter T1; The high-voltage anode signal input part of electric pressure converter T1 and high voltage negative signal input join 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 an end of the 21st resistance R 21; The other end of the 21st resistance R 21 is connected with an end of the 20th resistance R 20 and the inverting input of 6A operational amplifier U6A respectively; The other end of the 20th resistance R 20 is connected with an end of the 18th resistance R 18 and an end of the 19th resistance R 19 respectively, and the other end of the 18th resistance R 18 connects the positive 3.3V voltage output end of power module; The other end of the 19th resistance R 19 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 connects the inverting input of 6A operational amplifier U6A through the 22nd resistance R 22 feedbacks; The inverting input of 6D operational amplifier U6D is connected with the output of 6A operational amplifier U6A through the 23rd resistance R 23 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 with micro treatment module with the anode of the 7th diode D7, the negative electrode company of the 8th diode D8, an end of the 24th resistance R 24 successively, also connects the inverting input of 6D operational amplifier U6D simultaneously through the 24th resistance R 24 feedbacks; 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 realization circuit of this voltage detection module; The pull-up resistor that the 18th resistance R 18 and the 19th resistance R 19 constitute; Can make on the reverse input end of 6A operational amplifier U6A and be superimposed with a direct current level; It is a direct voltage that thereby assurance outputs to the signal of micro treatment module, so that micro treatment module can correctly be judged the time of voltage transformer voltage over zero.
(3) current detection module: be connected with current transformer and detect the current transformer electric current; As shown in Figure 4; This current detection module can realize that this circuit can comprise through following circuit: the 25th resistance R the 25, the 26th resistance R the 26, the 27th resistance R the 27, the 28th resistance R the 28, the 29th resistance R the 29, the 30th resistance R the 30, the 31st resistance R the 31, 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 output feedback of 7A operational amplifier U7A connects the inverting input of 7A operational amplifier U7A, is connected with an end of the 26th resistance R 26 simultaneously; The other end of the 26th resistance R 26 is connected with an end of the 25th resistance R 25, an end of the 27th resistance R 27 and the inverting input of 7B operational amplifier U7B respectively; The other end of the 25th resistance R 25 is connected with an end of the 30th resistance R 30 and an end of the 31st resistance R 31 respectively, and the other end of the 30th resistance R 30 connects the positive 3.3V voltage output end of power module; The other end of the 31st resistance R 31 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 R 27; The inverting input of 7C operational amplifier U7C is connected with the output of 7B operational amplifier U7B through the 28th resistance R 28 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 with micro treatment module with the anode of the 9th diode D9, the negative electrode company of the 10th diode D10, an end of the 29th resistance R 29 successively, also connects the inverting input of 7C operational amplifier U7C simultaneously through the 29th resistance R 29 feedbacks; 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 realization circuit of this current detection module; The pull-up resistor that the 30th resistance R the 30, the 31st resistance R 31 and the 25th resistance R 25 constitute; Can make on the reverse input end of 7B operational amplifier U7B and be superimposed with a direct current level; It is a direct voltage that thereby assurance outputs to the signal of micro treatment module, so that micro treatment module can correctly be judged the time of current transformer current zero-crossing point.
(4) vacuum circuit-breaker operational module: be connected with vacuum circuit-breaker and control that vacuum circuit-breaker closes a floodgate, sub-switching operation; As shown in Figure 5; This vacuum circuit-breaker operational module can be realized through following circuit; This circuit can comprise: the 14th resistance R the 14, the 16th resistance R the 16, the 17th resistance R the 17, 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 is mainly used in high pressure brake portion and low voltage control part isolated, and for example: this electronic relay U7 can select for use in the prior art can pass through the chip PVX6012 that commercial means is bought); Described the 5th 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 R 17 through the 6th diode D6 of series connection successively; The negative electrode of the 5th photoelectrical coupler importation diode directly is connected with the control signal low-voltage output of micro treatment module; The base stage of the 3rd triode Q3 is connected with the control signal protection voltage output end of micro treatment module through the 16th resistance R 16 of series connection; The emitter of the 3rd triode Q3 directly is connected with the power ground end of power module; The collector electrode of the 3rd triode Q3 is connected between the 6th diode D6 and the 17th resistance R 17 of series connection; The emitter of the 5th photoelectrical coupler output triode directly is 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 through the 14th resistance R 14 of series connection; The control signal output ends of electronic relay U7 is connected with the negative electrode of the 6th diode D6 and the high voltage signal input end of vacuum circuit-breaker drive motors; The low-voltage signal input end of the anode of the 6th diode D6 and vacuum circuit-breaker drive motors all is connected with the negative 110V voltage output end of power module; The vacuum circuit-breaker drive motors connects and the driving vacuum circuit-breaker closes a floodgate, sub-switching operation.In the realization circuit of this vacuum circuit-breaker operational module, the 17th resistance R 17 can limit the electric current that flows into the 5th photoelectrical coupler U5; The 6th diode D6 can limit the voltage that flows to the vacuum circuit-breaker drive motors, and is excessive to prevent voltage; The 14th resistance R 14 is a pull-up resistor, can limit the electric current that flows into electronic relay U7.
Need to prove that the micro treatment module described in the present specification can be by the ARM common treatment circuits that processor constituted such as (ARM are the abbreviation of Advanced RISC Machines, is translated into advanced RISC machines) in the prior art; Memory module described in the present specification can be to locate the common memory circuit that storage chip constitutes by AT24C04, AT29C257 etc. in the prior art; Display module described in the present specification can be by common display circuits that display device constituted such as LCDs, digitron display screens in the prior art; Power module described in the present specification can be in the prior art by the common voltage change-over circuit, can be stable voltage with the big voltage transitions of fluctuation range in the locomotive electric power system, think each module for power supply of this soft on-off controller.
It is thus clear that the realization of the embodiment of the invention makes that vacuum circuit-breaker closes a floodgate, sub-switching operation under uncharged situation, thereby avoid producing electric arc, prolong the useful life of vacuum circuit-breaker in the inside of vacuum circuit-breaker.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation 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 (8)
1. a vacuum circuit-breaker is used soft on-off controller, is used for receiving the vacuum circuit-breaker control signal of locomotive electric power system, and the control vacuum circuit-breaker closes a floodgate, sub-switching operation; Described locomotive electric power system comprises the vacuum circuit-breaker that elder generation and voltage transformer parallel connection are connected with current transformer again; It is characterized in that; This soft on-off controller comprises: be connected in the locomotive electric power system and receive the control signal receiver module of vacuum circuit-breaker control signal; The voltage detection module that is connected and detects voltage transformer voltage with voltage transformer; The current detection module that is connected and detects the current transformer electric current with current transformer is connected with vacuum circuit-breaker and controls that vacuum circuit-breaker closes 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 the locomotive electric power system through the control signal receiver module, and detects voltage transformer voltage or detect the current transformer electric current according to this vacuum circuit-breaker control signal; Again according to described voltage transformer voltage or current transformer Current Control vacuum circuit-breaker close a floodgate, 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 electric energy is provided.
2. vacuum circuit-breaker according to claim 1 is used soft on-off controller, it is characterized in that, 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 the locomotive electric power system through the control signal receiver module, and detects voltage transformer voltage according to vacuum circuit-breaker switching signal control voltage detection module; When voltage transformer voltage was not more than zero, micro treatment module carried out closing operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, and detects the current transformer electric current through current detection module; When detecting the current transformer electric current greater than zero the time, then micro treatment module confirms that the vacuum circuit-breaker closing operation accomplishes;
And/or,
Micro treatment module obtains the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, and detects the current transformer electric current according to vacuum circuit-breaker sub-gate signal Control current detection module; When the current transformer electric current was not more than zero, micro treatment module carried out sub-switching operation through vacuum circuit-breaker operational module control vacuum circuit-breaker, still detects the current transformer electric current through current detection module simultaneously; If when detecting the current transformer electric current and still being not more than zero, then micro treatment module confirms that the vacuum circuit-breaker sub-switching operation accomplishes.
3. vacuum circuit-breaker according to claim 2 is used soft on-off controller, it is characterized in that, also comprises: the memory module of under micro treatment module control, the vacuum circuit-breaker control data being stored; This memory module is connected with power module with micro treatment module respectively;
When micro treatment module got access to the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, micro treatment module deposited the vacuum circuit-breaker switching signal in memory module as the vacuum circuit-breaker control data time of reception; When micro treatment module confirms that the vacuum circuit-breaker closing operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker switching signal and accomplishes vacuum circuit-breaker closing operation time-delay constantly to the vacuum circuit-breaker closing operation time of reception, and the information that the vacuum circuit-breaker closing operation completion moment, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished deposits memory module in as the vacuum circuit-breaker control data;
And/or,
When micro treatment module got access to the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, micro treatment module deposited the vacuum circuit-breaker sub-gate signal in memory module as the vacuum circuit-breaker control data time of reception; When micro treatment module confirms that the vacuum circuit-breaker sub-switching operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker sub-gate signal and accomplishes vacuum circuit-breaker sub-switching operation time-delay constantly to the vacuum circuit-breaker sub-switching operation time of reception, and the information that the vacuum circuit-breaker sub-switching operation completion moment, the time-delay of vacuum circuit-breaker sub-switching operation and sign vacuum circuit-breaker sub-switching operation are accomplished deposits memory module in as the vacuum circuit-breaker control data.
4. use soft on-off controller according to claim 2 or 3 described vacuum circuit-breakers, it is characterized in that, also comprise: the display module that under micro treatment module control, the vacuum circuit-breaker control data is shown; This display module is connected with power module with micro treatment module respectively;
When micro treatment module got access to the vacuum circuit-breaker switching signal in the locomotive electric power system through the control signal receiver module, micro treatment module sent to the display module demonstration as the vacuum circuit-breaker control data with the vacuum circuit-breaker switching signal time of reception; When micro treatment module confirms that the vacuum circuit-breaker closing operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker switching signal and accomplishes vacuum circuit-breaker closing operation time-delay constantly to the vacuum circuit-breaker closing operation time of reception, and the information that the vacuum circuit-breaker closing operation completion moment, the time-delay of vacuum circuit-breaker closing operation and sign vacuum circuit-breaker closing operation are accomplished sends to the display module demonstration as the vacuum circuit-breaker control data;
And/or,
When micro treatment module got access to the vacuum circuit-breaker sub-gate signal in the locomotive electric power system through the control signal receiver module, micro treatment module sent to the display module demonstration as the vacuum circuit-breaker control data with the vacuum circuit-breaker sub-gate signal time of reception; When micro treatment module confirms that the vacuum circuit-breaker sub-switching operation is accomplished; Micro treatment module calculates from the vacuum circuit-breaker sub-gate signal and accomplishes vacuum circuit-breaker sub-switching operation time-delay constantly to the vacuum circuit-breaker sub-switching operation time of reception, and the information that the vacuum circuit-breaker sub-switching operation completion moment, the time-delay of vacuum circuit-breaker sub-switching operation and sign vacuum circuit-breaker sub-switching operation are accomplished sends to the display module demonstration as the vacuum circuit-breaker control data.
5. use soft on-off controller according to claim 1 or 2 or 3 described vacuum circuit-breakers; 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 the locomotive electric power system is transmitted through locomotive control signal positive voltage transmission line and locomotive control signal negative voltage transmission line;
Described the 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 links to each other with an end of the 6th resistance (R6), an end of the 16th electric capacity (C16), the negative electrode of the 3rd voltage stabilizing didoe (D3) and an end of the 5th resistance (R5), 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 links to each other 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 links to each other 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 micro treatment module with an end of the 7th resistance (R7) respectively, and the other end of the 7th resistance (R7) connects the positive 5V voltage output end of power module.
6. use soft on-off controller according to claim 1 or 2 or 3 described vacuum circuit-breakers; 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);
The high-voltage anode signal input part of electric pressure converter (T1) and high voltage negative signal input join 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 an end of the 21st resistance (R21);
The other end of the 21st resistance (R21) is connected with an 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 an end of the 18th resistance (R18) and an 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) connects the inverting input of 6A operational amplifier (U6A) through the 22nd resistance (R22) feedback;
The inverting input of 6D operational amplifier (U6D) is connected with the output of 6A operational amplifier (U6A) through 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 with micro treatment module with the anode of the 7th diode (D7), the negative electrode company of the 8th diode (D8), an end of the 24th resistance (R24) successively, also connects the inverting input of 6D operational amplifier (U6D) simultaneously through the 24th resistance (R24) feedback;
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.
7. use soft on-off controller according to claim 1 or 2 or 3 described vacuum circuit-breakers; 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 output feedback of 7A operational amplifier (U7A) connects the inverting input of 7A operational amplifier (U7A), is connected with an end of the 26th resistance (R26) simultaneously;
The other end of the 26th resistance (R26) is connected with an end of the 25th resistance (R25), an 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 an end of the 30th resistance (R30) and an 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) through 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 with micro treatment module with the anode of the 9th diode (D9), the negative electrode company of the 10th diode (D10), an end of the 29th resistance (R29) successively, also connects the inverting input of 7C operational amplifier (U7C) simultaneously through the 29th resistance (R29) feedback;
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.
8. use soft on-off controller according to claim 1 or 2 or 3 described vacuum circuit-breakers; 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);
Described the 5th 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) through the 6th diode (D6) of series connection successively; The negative electrode of the 5th photoelectrical coupler importation diode directly is connected with the control signal low-voltage output of micro treatment module;
The base stage of the 3rd triode (Q3) is connected with the control signal protection voltage output end of micro treatment module through the 16th resistance (R16) of series connection; The emitter of the 3rd triode (Q3) directly is connected with the power ground end of power module; The collector electrode of the 3rd triode (Q3) is connected between the 6th diode (D6) and the 17th resistance (R17) of series connection;
The emitter of the 5th photoelectrical coupler output triode directly is 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 through the 14th resistance (R14) of series connection; The control signal output ends of electronic relay (U7) is connected with the negative electrode of the 6th diode (D6) and the high voltage signal input end of vacuum circuit-breaker drive motors;
The anode of the 6th diode (D6) all is connected with the negative 110V voltage output end of power module with the low-voltage signal input end of vacuum circuit-breaker drive motors;
The vacuum circuit-breaker drive motors connects and the driving vacuum circuit-breaker closes a floodgate, sub-switching operation.
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| 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 |
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