CN204481567U - A kind of AC power switched system - Google Patents
A kind of AC power switched system Download PDFInfo
- Publication number
- CN204481567U CN204481567U CN201520180374.6U CN201520180374U CN204481567U CN 204481567 U CN204481567 U CN 204481567U CN 201520180374 U CN201520180374 U CN 201520180374U CN 204481567 U CN204481567 U CN 204481567U
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- China
- Prior art keywords
- electrically connected
- power
- starting drive
- output
- switching control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model proposes a kind of AC power switched system, comprise: the first AC power, circuit checker, the second AC power, switching control, described first AC power is electrically connected by the first starting drive with load, described second AC power is electrically connected by the second starting drive with load, described first starting drive, the second starting drive are formed by three contactors, and a bidirectional triode thyristor in parallel on each contactor; Described switching control is used for triggering described first starting drive respectively or/and the second starting drive opens or cuts out; Circuit checker comprises: rectifying device, high-speed sampling device, signal processing apparatus, described signal processing apparatus is electrically connected with switching control.AC power switched system of the present utility model, switch speed is fast, time delay is short and low in energy consumption.
Description
Technical field
The utility model relates to electrical source exchange technical field, refers to a kind of AC power switched system especially.
Background technology
Power transfer system is the automatic switchover to conventional power supply and stand-by power supply, when conventional power failure or when having a power failure, is automatically switched on stand-by power supply, thus load still can normally be run by power transfer device.Existing power transfer device use in the large scale industry such as petrochemical industry, metallurgy have that switch speed is slow, time delay is long, power consumption is large, cause that equipment is stopped transport, technological process interruption or waste product produce.
Summary of the invention
The utility model proposes a kind of AC power switched system, solve the problem that in prior art, AC power switching device shifter switch speed is slow, time delay is long, power consumption is large.
The technical solution of the utility model is achieved in that
A kind of AC power switched system, comprise: the first AC power, the second AC power, the circuit checker be electrically connected with the output of the first AC power, the switching control that is electrically connected with described circuit checker, described second AC power is stand-by power supply, and described first AC power is electrically connected by the first starting drive with load, described second AC power is electrically connected by the second starting drive with load, described first starting drive, the second starting drive are formed by three contactors, and a bidirectional triode thyristor in parallel on each contactor; Described first starting drive and the second starting drive are all electrically connected with switching control, and described switching control is used for triggering described first starting drive respectively or/and the second starting drive opens or cuts out; Described circuit checker comprises: rectifying device, the high-speed sampling device be electrically connected with the output of described rectifying device, the signal processing apparatus be electrically connected with the output of described high-speed sampling device, described signal processing apparatus is electrically connected with described switching control.
Preferably, in described AC power switched system, described signal processing apparatus comprises: phase angle calculation element and crest voltage calculation element, the input of described phase angle calculation element is electrically connected with the output of described high-speed sampling device, for calculating the phase angle of the current voltage that described high-speed sampling device obtains; The input of described crest voltage calculation element is electrically connected with described phase angle calculation element, for calculating the crest voltage of described current voltage according to described phase angle.
Preferably, in described AC power switched system, described switching control comprises comparator device, the trigger device be electrically connected with the output of described comparator device and triode switch, the input of described comparator device is electrically connected with the crest voltage calculation element in described circuit checker, for the difference of the crest voltage and typical peak voltage that judge the current voltage in described circuit checker, when described difference is greater than predetermined threshold value, described trigger device triggers described triode and disconnects described first starting drive, open described second starting drive.
Preferably, in described AC power switched system, also comprise interlock switch, the output of described interlock switch is electrically connected with described triode switch, and input is electrically connected with the output of described trigger device.
The beneficial effects of the utility model are: AC power switched system of the present utility model, and switch speed is fast, time delay is short, power consumption is little, realize the quick switching of conventional power supply and stand-by power supply.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of AC power switched system of the utility model;
Fig. 2 is the structural representation of the first starting drive or the second starting drive shown in Fig. 1.
In figure:
1, contactor; 2, bidirectional triode thyristor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of AC power switched system, comprise: the first AC power, second AC power, the circuit checker be electrically connected with the first ac power output, the switching control be electrically connected with the output of circuit checker, second AC power is stand-by power supply, and the first AC power is electrically connected by the first starting drive with load, second AC power is electrically connected by the second starting drive with load, wherein, first starting drive, second starting drive is formed by three contactors, and a bidirectional triode thyristor in parallel on each contactor, controllable silicon is used for the fast conducting of the first AC power or the first AC power and load, after conducting, by contactor continued power, contactor is idle almost, ensure that quick switching and the idle conducting of Power transfer system, first starting drive and the second starting drive are all electrically connected with switching control, and switching control is used for triggering described first starting drive respectively or/and the second starting drive opens or cuts out, circuit checker comprises: rectifying device, the high-speed sampling device be electrically connected with the output of rectifying device, the signal processing apparatus be electrically connected with the output of high-speed sampling device, and signal processing apparatus is electrically connected with switching control, signal processing apparatus comprises: phase angle calculation element and crest voltage calculation element, the input of phase angle calculation element is electrically connected with the output of high-speed sampling device, for calculating the phase angle of the current voltage that high-speed sampling device obtains, the input of crest voltage calculation element is electrically connected with phase angle calculation element, for calculating the crest voltage of current voltage according to phase angle, switching control comprises comparator device, the trigger device be electrically connected with the output of comparator device and triode switch, the input of comparator device is electrically connected with the crest voltage calculation element in circuit checker, for the crest voltage of the current voltage in decision circuitry checkout gear and the difference of typical peak voltage, when difference is greater than predetermined threshold value, trigger device trigger triode disconnects the first starting drive, open the second starting drive, the reaction of triode switch is fast, improves switch speed.
High-speed sampling device is for obtaining the current voltage after rectification, and the current voltage of acquisition is at the crest voltage drawing current voltage through calculating phase angle; Calculate the crest voltage of current voltage and the difference of typical peak voltage, then this difference is compared size with predetermined threshold value, when this difference is greater than predetermined threshold value, the first AC power is unstable, by power switching to the second AC power; When this difference is less than predetermined threshold value, the first ac power supply is stablized, and does not need to switch.
AC power switched system of the present utility model, also comprises interlock switch, and the output of interlock switch is electrically connected with triode switch, and input is electrically connected with the output of trigger device.Interlock switch prevents the first AC power and the conducting simultaneously of the second AC power.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. an AC power switched system, comprise: the first AC power, second AC power, the circuit checker be electrically connected with the output of the first AC power, the switching control be electrically connected with described circuit checker, described second AC power is stand-by power supply, and described first AC power is electrically connected by the first starting drive with load, described second AC power is electrically connected by the second starting drive with load, it is characterized in that, described first starting drive, second starting drive is formed by three contactors, and a bidirectional triode thyristor in parallel on each contactor, described first starting drive and the second starting drive are all electrically connected with described switching control, and described switching control is used for triggering described first starting drive respectively or/and the second starting drive opens or cuts out, described circuit checker comprises: rectifying device, the high-speed sampling device be electrically connected with the output of described rectifying device, the signal processing apparatus be electrically connected with the output of described high-speed sampling device, described signal processing apparatus is electrically connected with described switching control.
2. AC power switched system according to claim 1, it is characterized in that, described signal processing apparatus comprises: phase angle calculation element and crest voltage calculation element, the input of described phase angle calculation element is electrically connected with the output of described high-speed sampling device, for calculating the phase angle of the current voltage that described high-speed sampling device obtains; The input of described crest voltage calculation element is electrically connected with described phase angle calculation element, for calculating the crest voltage of described current voltage according to described phase angle.
3. AC power switched system according to claim 1, it is characterized in that, described switching control comprises comparator device, the trigger device be electrically connected with the output of described comparator device and triode switch, the input of described comparator device is electrically connected with the crest voltage calculation element in described circuit checker, for the difference of the crest voltage and typical peak voltage that judge the current voltage in described circuit checker, when described difference is greater than predetermined threshold value, described trigger device triggers described triode switch and disconnects described first starting drive, open described second starting drive.
4. AC power switched system according to claim 3, is characterized in that, also comprise interlock switch, and the output of described interlock switch is electrically connected with described triode switch, and input is electrically connected with the output of described trigger device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180374.6U CN204481567U (en) | 2015-03-30 | 2015-03-30 | A kind of AC power switched system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180374.6U CN204481567U (en) | 2015-03-30 | 2015-03-30 | A kind of AC power switched system |
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| Publication Number | Publication Date |
|---|---|
| CN204481567U true CN204481567U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520180374.6U Expired - Fee Related CN204481567U (en) | 2015-03-30 | 2015-03-30 | A kind of AC power switched system |
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| CN (1) | CN204481567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688411A (en) * | 2020-11-18 | 2021-04-20 | 卓旺(安徽)航空科技产业股份有限公司 | 50 meters of high-power supply mooring system under water of unmanned aerial vehicle |
-
2015
- 2015-03-30 CN CN201520180374.6U patent/CN204481567U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688411A (en) * | 2020-11-18 | 2021-04-20 | 卓旺(安徽)航空科技产业股份有限公司 | 50 meters of high-power supply mooring system under water of unmanned aerial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20180330 |