CN104201768A - Double-power switch control device - Google Patents
Double-power switch control device Download PDFInfo
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- CN104201768A CN104201768A CN201410513664.8A CN201410513664A CN104201768A CN 104201768 A CN104201768 A CN 104201768A CN 201410513664 A CN201410513664 A CN 201410513664A CN 104201768 A CN104201768 A CN 104201768A
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- power supply
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- dsp processor
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Abstract
The invention discloses a double-power switch control device which comprises a control unit and an execution unit, wherein the control unit comprises a DSP (digital signal processor), a control loop A and a control loop B; the control loop A is used for detecting voltage, frequency and phase position of a frequently-used power supply in real time and sending real-time signals to the DSP; after the real-time signals are judged by the DSP, corresponding operating orders are sent to the execution unit to control the switch-on and switch-off of the frequently-used power supply; the control loop B is connected with the DSP so as to control the switch-on and switch-off of a stand-by power supply; the frequently-used power supply and the stand-by power supply are in interlocking relation, namely, one of the power supplies is switched on, while the other is automatically switched off. According to the invention, the characteristics of high speed, high precision and powerful functions of the DSP are utilized, the stable, reliable and quick switch of the double-power switch is realized and the continuous, uninterrupted safe power supply is ensured; as the switch is switched manually, the control is diversified.
Description
Technical field
The present invention relates to a kind of power supply switch control system, be specifically related to twin-power switch control device.
Background technology
Along with scientific and technological progress and social development, people's living standard constantly improves, every profession and trade has proposed more and more higher requirement to reliability, fail safe, the continuity of power supply, and a lot of occasions need to adopt two-way power supply to guarantee reliability and the continuity of power supply.Departments such as market, bank, hospital, Office of the Telecommunications Authority, traffic department and national defense and military all requires safe power supply uninterruptedly.And intelligent duplicate power supply on-off controller can address the above problem well, for reliably, power supply provides strong assurance continuously.At present, in a lot of enterprises and field, all used intelligent duplicate power supply on-off controller, take single-chip microcomputer as core, voltage, frequency and phase place to duplex feeding power supply (conventional power supply and stand-by power supply) detect in real time, when the voltage generation overvoltage of a road power supply wherein (conventional power supply or stand-by power supply), under-voltage or phase shortage, controller will send motor switching command, make power supply automatically switch to another road power supply (stand-by power supply or conventional power supply) upper, with this, ensure the continuity of power supply.But single-chip microcomputer speed is slow, precision is low, function is very limited, can only complete some relative shirtsleeve operations.Therefore, develop a kind of judgement rapidly and accurately, and various control commands of real-time response, form powerful a, working stability, control system reliably, are the key points of solution existing issue.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of powerful, working stability, fast and accurately the twin-power switch control device of Switching power.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
Twin-power switch control device, comprise control unit and performance element, described control unit comprises dsp processor, control loop A and control loop B, control loop A detects in real time to voltage, frequency and the phase place of conventional power supply, and live signal is sent to dsp processor, after dsp processor is judged live signal, send corresponding operational order to performance element, control the connecting and disconnecting of conventional power supply; Control loop B is connected with dsp processor, and controls the connecting and disconnecting of stand-by power supply; Conventional power supply and stand-by power supply are interlocked relationship, and when one of them is connected, another disconnects automatically.
Preferably, described performance element comprises motor commutation circuit, warning circuit and LCD display circuit.
Preferably, described motor commutation circuit, warning circuit or LCD display circuit drive interface circuit to be connected with dsp processor by output.
Further, described control unit also comprises Manual Transfer Switch, and Manual Transfer Switch is connected between conventional power supply and stand-by power supply.
Beneficial effect of the present invention is: the present invention be take dsp processor as core, voltage to duplex feeding power supply (conventional power supply and stand-by power supply), frequency and phase place detect in real time, and live signal is sent to dsp processor, after dsp processor is judged live signal, send corresponding operational order to performance element, control the connecting and disconnecting of switching conventional power supply or stand-by power supply, wherein conventional power supply and stand-by power supply are interlocked relationship, when one of them is connected, another disconnects automatically, utilized dsp processor speed fast, precision is high, powerful character, realized the quick switching reliable and stable to twin-power switch, guaranteed safe power supply uninterruptedly, and Manual Transfer Switch makes to control variation.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of twin-power switch control device of the present invention.
Embodiment
Accompanying drawing discloses concrete structure of the present invention without limitation, and below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, twin-power switch control device, comprise control unit and performance element, described control unit comprises dsp processor, control loop A and control loop B, control loop A detects in real time to voltage, frequency and the phase place of conventional power supply, and live signal is sent to dsp processor, after dsp processor is judged live signal, send corresponding operational order to performance element, control the connecting and disconnecting of conventional power supply; Control loop B is connected with dsp processor, and controls the connecting and disconnecting of stand-by power supply; Conventional power supply and stand-by power supply are interlocked relationship, and when one of them is connected, another disconnects automatically.Described performance element comprises motor commutation circuit, warning circuit and LCD display circuit.Described motor commutation circuit, warning circuit or LCD display circuit drive interface circuit to be connected with dsp processor by output.Described control unit also comprises Manual Transfer Switch, and Manual Transfer Switch is connected between conventional power supply and stand-by power supply.
The course of work of the present invention: diverter switch, when manual, can directly be controlled the switching between duplex feeding power supply (conventional power supply and stand-by power supply) by Manual Transfer Switch.Diverter switch is when automatic, control loop A detects in real time to voltage, frequency and the phase place of conventional power supply, and live signal is sent to dsp processor, after dsp processor is judged live signal, voltage with power supply as usual, frequency or phase place occur abnormal, transmit operation instruction is to performance element, and performance element is made the action that disconnects conventional power supply, switches to stand-by power supply power supply simultaneously; When conventional power up normal, performance element cuts off stand-by power supply power supply automatically, recovers conventional Power supply simultaneously, has realized the quick switching reliable and stable to twin-power switch, guaranteed safe power supply uninterruptedly, and Manual Transfer Switch makes to control variation.
Claims (4)
1. twin-power switch control device, comprise control unit and performance element, it is characterized in that: described control unit comprises dsp processor, control loop A and control loop B, control loop A detects in real time to voltage, frequency and the phase place of conventional power supply, and live signal is sent to dsp processor, after dsp processor is judged live signal, send corresponding operational order to performance element, control the connecting and disconnecting of conventional power supply; Control loop B is connected with dsp processor, and controls the connecting and disconnecting of stand-by power supply; Conventional power supply and stand-by power supply are interlocked relationship, and when one of them is connected, another disconnects automatically.
2. twin-power switch control device according to claim 1, is characterized in that: described performance element comprises motor commutation circuit, warning circuit and LCD display circuit.
3. twin-power switch control device according to claim 1 and 2, is characterized in that: described motor commutation circuit, warning circuit or LCD display circuit drive interface circuit to be connected with dsp processor by output.
4. twin-power switch control device according to claim 1, is characterized in that: described control unit also comprises Manual Transfer Switch, and Manual Transfer Switch is connected between conventional power supply and stand-by power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513664.8A CN104201768A (en) | 2014-09-29 | 2014-09-29 | Double-power switch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513664.8A CN104201768A (en) | 2014-09-29 | 2014-09-29 | Double-power switch control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104201768A true CN104201768A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410513664.8A Pending CN104201768A (en) | 2014-09-29 | 2014-09-29 | Double-power switch control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104201768A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281417A (en) * | 2015-11-24 | 2016-01-27 | 国网山东省电力公司济南供电公司 | Apparatus preventing loop closing of low voltage power supply branches |
| CN110389304A (en) * | 2018-04-13 | 2019-10-29 | 中车株洲电力机车研究所有限公司 | A kind of power supply power consumption detection device of rail traffic control unit |
| CN110875594A (en) * | 2018-08-31 | 2020-03-10 | 北京金风科创风电设备有限公司 | Wind generating set and standby redundant power supply system thereof |
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| JPH0896246A (en) * | 1994-09-21 | 1996-04-12 | Alpha Corp | Rental locker system |
| CN102684291A (en) * | 2011-03-17 | 2012-09-19 | 重庆瑞升康博电气有限公司 | Control device of intelligent three-phase duel power supply conversion switch |
| CN103915890A (en) * | 2014-04-14 | 2014-07-09 | 国家电网公司 | Direct-current power source rapid switching device and method |
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2014
- 2014-09-29 CN CN201410513664.8A patent/CN104201768A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0896246A (en) * | 1994-09-21 | 1996-04-12 | Alpha Corp | Rental locker system |
| CN102684291A (en) * | 2011-03-17 | 2012-09-19 | 重庆瑞升康博电气有限公司 | Control device of intelligent three-phase duel power supply conversion switch |
| CN103915890A (en) * | 2014-04-14 | 2014-07-09 | 国家电网公司 | Direct-current power source rapid switching device and method |
Non-Patent Citations (1)
| Title |
|---|
| 孟超: "智能双电源自动切换装置", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281417A (en) * | 2015-11-24 | 2016-01-27 | 国网山东省电力公司济南供电公司 | Apparatus preventing loop closing of low voltage power supply branches |
| CN105281417B (en) * | 2015-11-24 | 2018-06-15 | 国网山东省电力公司济南供电公司 | A kind of device for preventing low-voltage power supply branch cyclization |
| CN110389304A (en) * | 2018-04-13 | 2019-10-29 | 中车株洲电力机车研究所有限公司 | A kind of power supply power consumption detection device of rail traffic control unit |
| CN110875594A (en) * | 2018-08-31 | 2020-03-10 | 北京金风科创风电设备有限公司 | Wind generating set and standby redundant power supply system thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |