CN104682544A - Spare power automatic switching method and device - Google Patents
Spare power automatic switching method and device Download PDFInfo
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- CN104682544A CN104682544A CN201310629514.9A CN201310629514A CN104682544A CN 104682544 A CN104682544 A CN 104682544A CN 201310629514 A CN201310629514 A CN 201310629514A CN 104682544 A CN104682544 A CN 104682544A
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Abstract
The invention discloses a spare power automatic switching method and device, wherein the method comprises the following steps that current input signals and voltage input signals which are obtained through proportionally converting collected current signals and voltage signals of an on-site switch and can be recognized by a microprocessor assembly are obtained; switch operation parameters which are obtained through converting collected operation parameters of the in-site switch and can be recognized by the microprocessor assembly are obtained; switch control information is generated according to the current input signals, the voltage input signals and the switch operation parameters; the on-off state change of the in-site switch is controlled according to the switch control information, wherein the on-off state change of the in-site switch is used for switching a spare power supply to the work state when a main power consumption power supply fails, and is also used for switching the main power consumption power supply to the work state when the main power consumption power supply recovers the normal state. The method and the device have the advantages that the problem of spare power automatic switching inaccuracy is solved, and the effect of accurate, flickering-free and fast spare power automatic switching is realized, and the realized functions are complete.
Description
Technical field
The application relates to power domain, in particular to a kind of spare power automatic switching method and device.
Background technology
In recent years, along with the fast development of power distribution network and the proposition of intelligent grid, more and more higher to the requirement of power supply reliability, particularly to the power supply of responsible consumer, generally all adopt dual power supply, two-way power supply realizes for subsequent use each other by Double-power controller;
In current substantially all important switchgear houses, low pressure PLC technology backup auto-activating device (i.e. PLC device) is all installed, complete the automatic switching function of stand-by power supply and cyclization by PLC device to recruit function, but due to the limitation of PLC itself, improve constantly in the requirement of power supply reliability, power distribution automation high speed development, existing PLC device has not improved the potentiality of power supply reliability, seriously hinders the development improving power supply reliability further.
Current, backup auto-activating device adopts the mode of lower Fig. 1 to realize controlling usually.As shown in Figure 1, the control strategy of the program is be checked through to start after transformer outlet voltage is less than the definite value with no pressure preset to haul oneself willingly into, and first disconnects transformer service entrance switch and to close bus connection switch again; When runback, first disconnect time delay after bus connection switch and to close working power killer switch.
There is following problem in above-mentioned prepared auto restart scheme:
1) just start prepared auto restart after needing to wait for certain time delay after having a power failure, interruption duration is longer;
2) break down and fault recovery time user must experience twice power failure, cause customer outage hours and frequency of power cut to be multiplied;
3) existing apparatus is after gathering voltage, electric current, be converted to logical signal access programmable logic controller (PLC) (PLC) and judge the scope of voltage, electric current, acquisition principle is according to comparator type, and error is large, and be subject to shove, the factor such as Voltage Drop, electromagnetic interference affects malfunction;
4) fault cannot be assisted to recollect, existing apparatus does not possess the SOE writing function of fault moment, is unfavorable for the analysis of later stage to fault, to a certain degree have impact on the maintenance after fault and restore electricity.
Summary of the invention
The main purpose of the application is to provide a kind of spare power automatic switching method and device, at least to solve the inaccurate problem owing to adopting comparator type to bring to realize prepared auto restart scheme.
An embodiment of the application provides a kind of spare power automatic switching method, it comprises: obtain by the current signal of the on-the-spot switch collected and voltage signal be converted in proportion can by the current input signal of microprocessor (MPU, Micro Processor Unit) component recognition and voltage input signal; Obtain by the operational factor of the on-the-spot switch collected be converted to can by the switch operational factor of microprocessor components identification; Switch control rule information is generated according to current input signal, voltage input signal and switch operational factor; The change of the open and-shut mode of on-the-spot switch is controlled according to switch control rule information, wherein, the change of the open and-shut mode of on-the-spot switch is used for, when primary power cource breaks down, stand-by power supply is switched to operating state, and when primary power cource recovers normal, primary power cource is switched to operating state.
As an optional embodiment, generate switch control rule information according to current input signal, voltage input signal and switch operational factor and comprise: judge whether primary power cource breaks down by switch operational factor; If primary power cource breaks down, then judge current input signal instruction no current and voltage input signal instruction no-voltage; If current input signal indicates no current and voltage input signal instruction no-voltage, then generate the switch control rule information being used to indicate and controlling service entrance switch and bus connection switch, wherein, on-the-spot switch comprises service entrance switch and bus connection switch.The change controlling the open and-shut mode of on-the-spot switch according to switch control rule information comprises: the change controlling the open and-shut mode of service entrance switch and bus connection switch according to switch control rule information, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for stand-by power supply to be switched to operating state.
As an optional embodiment, generate switch control rule information according to current input signal, voltage input signal and switch operational factor and comprise: judge whether primary power cource recovers normal by switch operational factor; If primary power cource recovers normal, then judge whether the difference between the voltage input signal that two service entrance switchs are corresponding meets predetermined condition; If meet predetermined condition, then generate switch control rule information, wherein, switch control rule information is used to indicate first control service entrance switch and closes, controls bus connection switch separating brake again, and on-the-spot switch comprises service entrance switch and bus connection switch.The change controlling the open and-shut mode of on-the-spot switch according to switch control rule information comprises: first control service entrance switch according to switch control rule information and close, control bus connection switch separating brake again, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for primary power cource to be switched to operating state.
As an optional embodiment, this spare power automatic switching method also comprises: obtain the current input signal that bus connection switch is corresponding, wherein, on-the-spot switch comprises bus connection switch; Judge whether the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold; If the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold, then control control bus connection switch separating brake.
As an optional embodiment, this spare power automatic switching method also comprises: main station system switch operational factor being transferred to far-end, wherein, switch operational factor comprise following one of at least: the voltage of on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode; Judge whether primary power cource breaks down, if break down, then record the change information of the fault message of primary power cource and/or the open and-shut mode of on-the-spot switch, and by fault message and/or change information transmission to the main station system of far-end.
An embodiment of the application additionally provides a kind of backup auto-activating device, it comprises: exchange acquisition component, can by the current input signal of microprocessor (MPU, Micro Processor Unit) component recognition and voltage input signal for being converted in proportion the current signal of the on-the-spot switch collected and voltage signal; Open into assembly, for obtaining, be converted to the operational factor of the on-the-spot switch collected can by the switch operational factor of microprocessor components identification; Microprocessor components, is connected into assembly with opening with interchange acquisition component, for generating switch control rule information according to current input signal, voltage input signal and switch operational factor; Output assembly, be connected with microprocessor components, for controlling the change of the open and-shut mode of on-the-spot switch according to switch control rule information, wherein, the change of the open and-shut mode of on-the-spot switch is used for, when primary power cource breaks down, stand-by power supply is switched to operating state, and when primary power cource recovers normal, primary power cource is switched to operating state.
As an optional embodiment, microprocessor components comprises: the first generation unit, for judging whether primary power cource breaks down by switch operational factor; If primary power cource breaks down, then judge current input signal instruction no current and voltage input signal instruction no-voltage; If current input signal indicates no current and voltage input signal instruction no-voltage, then generate the switch control rule information being used to indicate and controlling service entrance switch and bus connection switch, wherein, on-the-spot switch comprises service entrance switch and bus connection switch.Output assembly to comprise: the first switch unit, for controlling the change of the open and-shut mode of service entrance switch and bus connection switch according to switch control rule information, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for stand-by power supply to be switched to operating state.
As an optional embodiment, microprocessor components comprises: the second generation unit, for being judged by switch operational factor whether primary power cource recovers normal; If primary power cource recovers normal, then judge whether the difference between the voltage input signal that two service entrance switchs are corresponding meets predetermined condition; If meet predetermined condition, then generate switch control rule information, wherein, switch control rule information is used to indicate first control service entrance switch and closes, controls bus connection switch separating brake again, and on-the-spot switch comprises service entrance switch and bus connection switch.Output assembly to comprise: the second switch unit, close for first controlling service entrance switch according to switch control rule information, control bus connection switch separating brake again, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for primary power cource to be switched to operating state.
As an optional embodiment, microprocessor components comprises: over-current protecting unit, and for obtaining current input signal corresponding to bus connection switch, wherein, on-the-spot switch comprises bus connection switch; Judge whether the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold; If the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold, then control bus connection switch separating brake.
As an optional embodiment, backup auto-activating device also comprises: memory, for recording the change information of the fault message of primary power cource and/or the open and-shut mode of on-the-spot switch when primary power cource breaks down; Communication interface, for switch operational factor being transferred to the main station system of far-end, wherein, switch operational factor comprise following one of at least: the voltage of on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode; When primary power cource breaks down, by fault message and/or change information transmission to the main station system of far-end.
By the technical scheme of the application, following beneficial effect can be reached:
1) due to the current signal collected and voltage signal are converted in proportion can the signal that identifies by MPU, thus overcome PLC and adopt the inaccurate problem that causes of comparator type (such as, sampling error is large, be subject to shove, Voltage Drop, electromagnetic interference etc.), realize voltage, the precise acquisition of current signal and analysis.
2) realize cyclization back brake process monitoring function, when overcoming PLC runback, bring the problem of flashing to user, thus reduce user and flash number of times close to half, greatly reduce economic loss;
3) improve the speed of power supply prepared auto restart, decrease the interruption duration of user;
4) realize cyclization back brake process monitoring function, possess cyclization overcurrent protection function simultaneously, prevent failure propagation from causing switchgear house full cut-off;
5) memory space of super large is possessed, can non-volatile recording and saving scene service data and fault moment critical event, for analyzing failure cause and fast processing fault provide strong support;
Certainly, the scheme implemented in any embodiment of the application might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is a kind of structural representation of the backup auto-activating device used in correlation technique;
Fig. 2 is a kind of structural representation of the backup auto-activating device according to the embodiment of the present application;
Fig. 3 is the another kind of structural representation of the backup auto-activating device according to the embodiment of the present application;
Fig. 4 is the another kind of structural representation of the backup auto-activating device according to the embodiment of the present application; And
Fig. 5 is a kind of flow chart of the spare power automatic switching method according to the embodiment of the present application.
Embodiment
Hereinafter also describe the application in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As used in this application, term " module ", " assembly " or " unit " can be, but not limited to be a kind of hardware configuration.
Embodiment 1
Fig. 2 is a kind of structural representation of the backup auto-activating device according to the embodiment of the present application, and as shown in Figure 2, the backup auto-activating device of this embodiment includes but not limited to:
1) acquisition component 202 is exchanged, with microprocessor components 206(MPU assembly 206) be connected, for being converted to the current input signal and voltage input signal that can be identified by microprocessor (MPU, Micro Processor Unit) assembly 206 in proportion to the current signal of the on-the-spot switch collected and voltage signal;
As an optional embodiment, the current signal of on-the-spot switch after current transformer conversion with voltage signal simultaneously access device exchange acquisition component, by exchanging the AD conversion unit inputing to MPU assembly after voltage and current signal scaling transformation is become small-signal by acquisition component, realized precise acquisition and the analysis of voltage and current signal by MPU assembly.
2) open into assembly 204, be connected with microprocessor components 206, for obtaining, be converted to the operational factor of the on-the-spot switch collected can by the switch operational factor of microprocessor components identification;
As an optional embodiment, open the parameter (digital signal) of the switch position signal into assembly Real-time Collection scene, on-the-spot switch such as control enable signal, mode of operation etc., and the operational factor of the on-the-spot switch collected is converted to and by the switch operational factor of microprocessor components identification, then by Signal transmissions, this switch operational factor can be carried out logical process to MPU assembly.
3) microprocessor components 206, is connected into assembly 204 with opening with interchange acquisition component 202, for generating switch control rule information according to current input signal, voltage input signal and switch operational factor;
As an optional embodiment, the signal of MPU assembly to the transmission exchanging acquisition component obtains the characteristic value of concrete electric parameter such as relevant voltage, electric current, angular difference, power etc. and changes moment and trend after carrying out comprehensive analysis.
After the digital information that assembly transmission split by MPU assembly carries out disappearing and trembles process, logic analysis, obtain the state before and after concrete moment of numeral amount change and change, thus obtain on-the-spot mode of operation, switch operational factor, on-the-spot operational factor of being correlated with.
MPU assembly comprehensively analyzes electric parameter and the running status of on-the-spot three switches (such as, 2 service entrance switchs and 1 bus connection switch), and the logic function of foundation device setting is by outputing the control of assembly realization to on-the-spot switch.
4) assembly 208 is outputed, be connected with microprocessor components 206, for controlling the change of the open and-shut mode of on-the-spot switch according to switch control rule information, wherein, the change of the open and-shut mode of on-the-spot switch is used for, when primary power cource breaks down, stand-by power supply is switched to operating state, and when primary power cource recovers normal, primary power cource is switched to operating state.
In the present embodiment, due to the current signal collected and voltage signal are converted in proportion can the signal that identifies by MPU, thus overcome PLC and adopt the inaccurate problem that causes of comparator type (such as, sampling error is large, be subject to shove, Voltage Drop, electromagnetic interference etc.), realize voltage, the precise acquisition of current signal and analysis.
As an optional embodiment, microprocessor components 206 comprises: the first generation unit, for judging whether primary power cource breaks down by switch operational factor; If primary power cource breaks down, then judge current input signal instruction no current and voltage input signal instruction no-voltage; If current input signal indicates no current and voltage input signal instruction no-voltage, then generate the switch control rule information being used to indicate and controlling service entrance switch and bus connection switch, wherein, on-the-spot switch comprises service entrance switch and bus connection switch.Output assembly 208 to comprise: the first switch unit, for controlling the change of the open and-shut mode of service entrance switch and bus connection switch according to switch control rule information, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for stand-by power supply to be switched to operating state.In the present embodiment, improve the speed of power supply prepared auto restart, decrease the interruption duration of user.
For example, the voltage and current signal of MPU assembly Real-time Collection three switches, monitor position signalling and the failure condition of three switches simultaneously, judge that the rear MPU plug-in unit of switch power failure performs corresponding logic decision by with no pressure without stream criterion, under the prerequisite allowing quick electrical source exchange, controlling service entrance switch and bus connection switch by outputing assembly, realizing quick power supply handoff functionality.
As an optional embodiment, microprocessor components 206 comprises: the second generation unit, for being judged by switch operational factor whether primary power cource recovers normal; If primary power cource recovers normal, then judge whether the difference between the voltage input signal that two service entrance switchs are corresponding meets predetermined condition; If meet predetermined condition, then generate switch control rule information, wherein, switch control rule information is used to indicate first control service entrance switch and closes, controls bus connection switch separating brake again, and on-the-spot switch comprises service entrance switch and bus connection switch.Output assembly 208 to comprise: the second switch unit, close for first controlling service entrance switch according to switch control rule information, control bus connection switch separating brake again, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for primary power cource to be switched to operating state.
As an optional embodiment, if the difference between the voltage input signal that above-mentioned two service entrance switchs are corresponding does not meet predetermined condition, then the second generation unit generates switch control rule information, wherein, switch control rule information is used to indicate and first controls bus connection switch separating brake, control service entrance switch again closes, and on-the-spot switch comprises service entrance switch and bus connection switch; Output assembly 208 to comprise: the second switch unit, for first controlling bus connection switch separating brake according to switch control rule information, control service entrance switch again and close, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for primary power cource to be switched to operating state.
In the present embodiment, realize cyclization back brake process monitoring function, when overcoming PLC runback, bring the problem of flashing to user, thus reduce user and flash number of times close to half, greatly reduce economic loss.
For example, MPU assembly is detecting that the service entrance switch originally had a power failure is sent a telegram here, under permission cyclization runback prerequisite, start cyclization runback decision logic, whether the voltage amplitude value difference of detection two incoming powers and phase angle difference are less than the limit value of setting, if the result detected is meet cyclization runback, the service entrance switch that MPU Component driver outputs original power failure that assembly first controls closes, three switches are made to enter simultaneously closed cyclization pattern, when confirmation three switches all close, the time delay of MPU assembly sends the instruction of bus connection switch separating brake and realizes cyclization runback function.
As an optional embodiment, microprocessor components 206 comprises: over-current protecting unit, and for obtaining current input signal corresponding to bus connection switch, wherein, on-the-spot switch comprises bus connection switch; Judge whether the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold; If the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold, then control control bus connection switch separating brake.In the present embodiment, achieve cyclization overcurrent protection function, prevent failure propagation from causing switchgear house full cut-off.
For example, the current signal of MPU assembly Real-time Collection three switches, analyze the size of current flowing through bus connection switch, once detect that electric current exceedes the limit value just startup mother failure removal function of setting, MPU plug-in unit sends the instruction of bus connection switch separating brake immediately after confirmation overcurrent, triggers mother failure removal function.
As an optional embodiment, as shown in Figure 3, the backup auto-activating device in the present embodiment also comprises: memory 302 and power supply module 304.Wherein, memory 302, is connected with microprocessor components 206, for recording the change information of the fault message of primary power cource and/or the open and-shut mode of on-the-spot switch when primary power cource breaks down; Power supply module 304, for providing power supply for the part or all of assembly in backup auto-activating device.In the present embodiment, possess the memory space of super large, can non-volatile recording and saving scene service data and fault moment critical event, for analyzing failure cause and fast processing fault provide strong support.
For example, MPU assembly possesses mass data storage unit, can store operation note and the event of failure record of three switches of more than 1000 by real-time circulation, and the record stored supports that on-the-spot or distant place communication is read and analyzed.
For example, power supply module can be MPU assembly, open into assembly and output assembly and provide power supply, but is not limited to above assembly.
As an optional embodiment, as shown in Figure 4, backup auto-activating device in the present embodiment also comprises: communication interface 402, be connected with microprocessor components 206, for switch operational factor being transferred to the main station system of far-end, wherein, switch operational factor comprise following one of at least: the voltage of on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode; When primary power cource breaks down, by fault message and/or change information transmission to the main station system of far-end.。This communication interface can support that standard communication protocol accesses main website and realizes automation function.
As an optional embodiment, backup auto-activating device in the present embodiment also comprises: administration module, for after receiving the configuration order of main station system, remote maintenance and management are carried out to the switch operational factor of backup auto-activating device, wherein, switch operational factor comprise following one of at least: the voltage of on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode.
Embodiment 2
On the basis of the backup auto-activating device shown in Fig. 1-Fig. 4, the present embodiment additionally provides a kind of spare power automatic switching method, and as shown in Figure 5, the spare power automatic switching method in the present embodiment comprises the following steps:
S502, obtain by the current signal of the on-the-spot switch collected and voltage signal be converted in proportion can by the current input signal of microprocessor (MPU, Micro Processor Unit) component recognition and voltage input signal;
S504, obtain by the operational factor of the on-the-spot switch collected be converted to can by the switch operational factor of microprocessor components identification;
S506, generates switch control rule information according to current input signal, voltage input signal and switch operational factor;
S508, the change of the open and-shut mode of on-the-spot switch is controlled according to switch control rule information, wherein, the change of the open and-shut mode of on-the-spot switch is used for, when primary power cource breaks down, stand-by power supply is switched to operating state, and when primary power cource recovers normal, primary power cource is switched to operating state.
In the present embodiment, due to the current signal collected and voltage signal are converted in proportion can the signal that identifies by MPU, thus overcome PLC and adopt the inaccurate problem that causes of comparator type (such as, sampling error is large, be subject to shove, Voltage Drop, electromagnetic interference etc.), realize voltage, the precise acquisition of current signal and analysis.
As an optional embodiment, generate switch control rule information according to current input signal, voltage input signal and switch operational factor and comprise: judge whether primary power cource breaks down by switch operational factor; If primary power cource breaks down, then judge current input signal instruction no current and voltage input signal instruction no-voltage; If current input signal indicates no current and voltage input signal instruction no-voltage, then generate the switch control rule information being used to indicate and controlling service entrance switch and bus connection switch, wherein, on-the-spot switch comprises service entrance switch and bus connection switch.The change controlling the open and-shut mode of on-the-spot switch according to switch control rule information comprises: the change controlling the open and-shut mode of service entrance switch and bus connection switch according to switch control rule information, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for stand-by power supply to be switched to operating state.
In the present embodiment, improve the speed of power supply prepared auto restart, decrease the interruption duration of user.
As an optional embodiment, generate switch control rule information according to current input signal, voltage input signal and switch operational factor and comprise: judge whether primary power cource recovers normal by switch operational factor; If primary power cource recovers normal, then judge whether the difference between the voltage input signal that two service entrance switchs are corresponding meets predetermined condition; If meet predetermined condition, then generate switch control rule information, wherein, switch control rule information is used to indicate first control service entrance switch and closes, controls bus connection switch separating brake again, and on-the-spot switch comprises service entrance switch and bus connection switch.The change controlling the open and-shut mode of on-the-spot switch according to switch control rule information comprises: first control service entrance switch according to switch control rule information and close, control bus connection switch separating brake again, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for primary power cource to be switched to operating state.
As an optional embodiment, if the difference between the voltage input signal that two service entrance switchs are corresponding does not meet predetermined condition, then generate switch control rule information, wherein, switch control rule information is used to indicate and first controls bus connection switch separating brake, control service entrance switch again closes, and on-the-spot switch comprises service entrance switch and bus connection switch; The change controlling the open and-shut mode of on-the-spot switch according to switch controlling signal comprises: according to switch control rule information first control bus connection switch separating brake, again control service entrance switch close, wherein, the change of the open and-shut mode of service entrance switch and bus connection switch is used for primary power cource to be switched to operating state.
In the present embodiment, realize cyclization back brake process monitoring function, when overcoming PLC runback, bring the problem of flashing to user, thus reduce user and flash number of times close to half, greatly reduce economic loss.
As an optional embodiment, this spare power automatic switching method also comprises: obtain the current input signal that bus connection switch is corresponding, wherein, on-the-spot switch comprises bus connection switch; Judge whether the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold; If the size of the current input signal that bus connection switch is corresponding exceedes predetermined threshold, then control control bus connection switch separating brake.In the present embodiment, achieve cyclization overcurrent protection function, prevent failure propagation from causing switchgear house full cut-off.
As an optional embodiment, this spare power automatic switching method also comprises: main station system switch operational factor being transferred to far-end, wherein, switch operational factor comprise following one of at least: the voltage of on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode; Judge whether primary power cource breaks down, if break down, then record the change information of the fault message of primary power cource and/or the open and-shut mode of described on-the-spot switch, and by fault message and/or change information transmission to the main station system of far-end; After receiving the configuration order of main station system, remote maintenance and management are carried out to the switch operational factor of backup auto-activating device, wherein, switch operational factor comprise following one of at least: the voltage of on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode.In the present embodiment, possess the memory space of super large, can non-volatile recording and saving scene service data and fault moment critical event, for analyzing failure cause and fast processing fault provide strong support.
Obviously, those skilled in the art should be understood that, each module of above-mentioned the application or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the application is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in the application.
Claims (10)
1. a spare power automatic switching method, is characterized in that, comprising:
Obtain by the current signal of the on-the-spot switch collected and voltage signal be converted in proportion can by the current input signal of microprocessor components identification and voltage input signal;
Obtain by the operational factor of the described on-the-spot switch collected be converted to can by the switch operational factor of described microprocessor components identification;
Switch control rule information is generated according to described current input signal, described voltage input signal and described switch operational factor;
The change of the open and-shut mode of described on-the-spot switch is controlled according to described switch control rule information, wherein, the change of the open and-shut mode of described on-the-spot switch is used for, when primary power cource breaks down, stand-by power supply is switched to operating state, and when described primary power cource recovers normal, described primary power cource is switched to operating state.
2. method according to claim 1, is characterized in that,
Describedly generate switch control rule information according to described current input signal, described voltage input signal and described switch operational factor and comprise: judge whether described primary power cource breaks down by described switch operational factor; If described primary power cource breaks down, then judge described current input signal instruction no current and described voltage input signal instruction no-voltage; If described current input signal indicates no current and described voltage input signal instruction no-voltage, then generate the described switch control rule information being used to indicate and controlling service entrance switch and bus connection switch, wherein, described on-the-spot switch comprises described service entrance switch and described bus connection switch;
The described change controlling the open and-shut mode of described on-the-spot switch according to described switch control rule information comprises: the change controlling the open and-shut mode of described service entrance switch and described bus connection switch according to described switch control rule information, wherein, the change of the open and-shut mode of described service entrance switch and described bus connection switch is used for described stand-by power supply to be switched to operating state.
3. method according to claim 1, is characterized in that,
Describedly generate switch control rule information according to described current input signal, described voltage input signal and described switch operational factor and comprise: judge whether described primary power cource recovers normal by described switch operational factor; If described primary power cource recovers normal, then judge whether the difference between the voltage input signal that two service entrance switchs are corresponding meets predetermined condition; If meet described predetermined condition, then generate described switch control rule information, wherein, described switch control rule information be used to indicate first control described service entrance switch closed, control bus connection switch separating brake again, described on-the-spot switch comprises described service entrance switch and described bus connection switch;
The described change controlling the open and-shut mode of described on-the-spot switch according to described switch control rule information comprises: first control described service entrance switch according to described switch control rule information and close, control bus connection switch separating brake again, wherein, the change of the open and-shut mode of described service entrance switch and described bus connection switch is used for described primary power cource to be switched to operating state.
4. method according to claim 1, is characterized in that, also comprises:
Obtain the current input signal that bus connection switch is corresponding, wherein, described on-the-spot switch comprises described bus connection switch;
Judge whether the size of the current input signal that described bus connection switch is corresponding exceedes predetermined threshold;
If the size of the current input signal that described bus connection switch is corresponding exceedes described predetermined threshold, then control described bus connection switch separating brake.
5. method according to any one of claim 1 to 4, is characterized in that, also comprises:
Described switch operational factor is transferred to the main station system of far-end, wherein, described switch operational factor comprise following one of at least: the voltage of described on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode;
Judge whether described primary power cource breaks down, if break down, then record the change information of the fault message of described primary power cource and/or the open and-shut mode of described on-the-spot switch, and by described fault message and/or described change information transmission to the main station system of far-end.
6. a backup auto-activating device, is characterized in that, comprising:
Exchange acquisition component, can by the current input signal of microprocessor components identification and voltage input signal for being converted in proportion the current signal of the on-the-spot switch collected and voltage signal;
Open into assembly, for obtaining, be converted to the operational factor of the described on-the-spot switch collected can by the switch operational factor of described microprocessor components identification; Described microprocessor components, is connected into assembly with described interchange acquisition component and described opening, for generating switch control rule information according to described current input signal, described voltage input signal and described switch operational factor;
Output assembly, be connected with described microprocessor components, for controlling the change of the open and-shut mode of described on-the-spot switch according to described switch control rule information, wherein, the change of the open and-shut mode of described on-the-spot switch is used for, when primary power cource breaks down, stand-by power supply is switched to operating state, and when described primary power cource recovers normal, described primary power cource is switched to operating state.
7. device according to claim 6, is characterized in that,
Described microprocessor components comprises: the first generation unit, for judging whether described primary power cource breaks down by described switch operational factor; If described primary power cource breaks down, then judge described current input signal instruction no current and described voltage input signal instruction no-voltage; If described current input signal indicates no current and described voltage input signal instruction no-voltage, then generate the described switch control rule information being used to indicate and controlling service entrance switch and bus connection switch, wherein, described on-the-spot switch comprises described service entrance switch and described bus connection switch;
Described assembly of outputing comprises: the first switch unit, for controlling the change of the open and-shut mode of described service entrance switch and described bus connection switch according to described switch control rule information, wherein, the change of the open and-shut mode of described service entrance switch and described bus connection switch is used for described stand-by power supply to be switched to operating state.
8. device according to claim 6, is characterized in that,
Described microprocessor components comprises: the second generation unit, for judging whether described primary power cource recovers normal by described switch operational factor; If described primary power cource recovers normal, then judge whether the difference between the voltage input signal that two service entrance switchs are corresponding meets predetermined condition; If meet described predetermined condition, then generate described switch control rule information, wherein, described switch control rule information be used to indicate first control described service entrance switch closed, control bus connection switch separating brake again, described on-the-spot switch comprises described service entrance switch and described bus connection switch;
Described assembly of outputing comprises: the second switch unit, close for first controlling described service entrance switch according to described switch control rule information, control bus connection switch separating brake again, wherein, the change of the open and-shut mode of described service entrance switch and described bus connection switch is used for described primary power cource to be switched to operating state.
9. device according to claim 6, is characterized in that, described microprocessor components comprises: over-current protecting unit, and for obtaining current input signal corresponding to bus connection switch, wherein, described on-the-spot switch comprises described bus connection switch; Judge whether the size of the current input signal that described bus connection switch is corresponding exceedes predetermined threshold; If the size of the current input signal that described bus connection switch is corresponding exceedes described predetermined threshold, then control the described bus connection switch separating brake of control.
10. the device according to any one of claim 6 to 9, is characterized in that, also comprises:
Memory, for the change information of the open and-shut mode of the fault message and/or described on-the-spot switch that record described primary power cource when described primary power cource breaks down;
Communication interface, for described switch operational factor being transferred to the main station system of far-end, wherein, described switch operational factor comprise following one of at least: the voltage of described on-the-spot switch, electric current, power, power factor, frequency, degree of unbalance and open and-shut mode; When described primary power cource breaks down, by described fault message and/or described change information transmission to the main station system of far-end.
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