CN103779954A - Voltage detecting and converting device - Google Patents
Voltage detecting and converting device Download PDFInfo
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- CN103779954A CN103779954A CN201210395261.9A CN201210395261A CN103779954A CN 103779954 A CN103779954 A CN 103779954A CN 201210395261 A CN201210395261 A CN 201210395261A CN 103779954 A CN103779954 A CN 103779954A
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- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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- 230000035484 reaction time Effects 0.000 description 1
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Abstract
A voltage detecting and converting device is composed of a selector switch, a full wave rectifier, a zero point detection circuit, a comparison circuit and a control unit. An external power supply and a stand-by power supply respectively send voltage waveform signals thereof to the full wave rectifier to rectify a negative half wave into a positive half wave; the zero point detection circuit adjusts the phase timing sequences of the two rectified waveform signals to enable the phase timing sequences of the two rectified waveform signals to start at a same time point; the comparison circuit compares the vibration amplitudes of the two waveform signals at the same time point after the two adjusted waveform signals are transmitted to the comparison circuit; and after receiving the vibration amplitudes of the two waveform signals and when judging that the vibration amplitude of the waveform of the external power supply is smaller than the vibration amplitude of the waveform of the stand-by power supply, the control unit sends a switching command to the selector switch to command the selector switch to be switched and communicated to the stand-by power supply so as to maintain normal operation of machinery equipment.
Description
Technical field
The present invention is relevant with detecting voltage conversion equipment, especially refers to one by detecting voltage waveform and compares with set point, and then judging whether the detecting voltage conversion equipment of cut-in stand-by power supply.
Background technology
With regard to the photoelectricity or semiconductor manufacturing factory of high-tech industry, the machinery equipment of running in its 24 hours shuts down and causes damage in the time that power supply supply is abnormal for avoiding, and UPS (UPS) all can be installed on equipment to maintain normal operation.And the off-line type UPS generally sold on the market, its power supply protector is to detect one to three complete voltage cycle, take 50HZ power supply as example, the detecting time needs 20 milliseconds to 60 milliseconds.In analysis according to voltage collapse test and research process, find; on supply of electric power occurs in abnormal 50 milliseconds, stand-by power supply to be switched; the control module that can guarantee machinery equipment avoids crashing and can run well; if therefore can shorten detecting and the reaction time to power supply, can effectively guarantee that machinery equipment maintains normal operation.
Summary of the invention
Main purpose of the present invention is to provide a kind of detecting voltage conversion equipment, it is by detecting voltage waveform and immediately comparing with set point, and then judge whether cut-in stand-by power supply, there is the effect that shortens the detecting time, promotes cut-in stand-by power supply speed while meeting abnormity of power supply.
For achieving the above object, the invention provides following technical scheme:
A kind of detecting voltage conversion equipment, it includes:
One diverter switch, an external ac power source and an AC power for subsequent use are connected to respectively this diverter switch, and this diverter switch is communicated in described external ac power source normally, and can be controlled and switch to and be communicated in described AC power for subsequent use;
One full-wave rectifier, described external ac power source and described AC power for subsequent use transmit respectively its voltage waveform signal to described full-wave rectifier, in order to the negative halfwave rectifier in the two waveform signal is become to positive half wave;
One zero point detection circuit, it is subject to two waveform signals after described full-wave rectifier rectification in order to receive, and the phase bit timing of adjusting the two originates in same time point;
One comparison circuit, it is subject to two waveform signals after described zero point detection circuit is adjusted in order to reception, and immediately compares the two in the amplitude of identical time point;
One control unit, it is in order to receive the amplitude of described comparison circuit output, and in the time that the amplitude of described external ac power source waveform is less than the amplitude of described AC power waveform for subsequent use, send switching command to this diverter switch, make described diverter switch switch to and be communicated in described AC power for subsequent use.
Described AC power for subsequent use is first after a conversion equipment conversion, then sends waveform signal to described full-wave rectifier with the AC power for subsequent use after conversion;
Described conversion equipment has an AC/DC transducer, a power supply storage equipment and a DC/AC transducer, and described AC power for subsequent use is sequentially changed through above-mentioned three devices.
The invention has the beneficial effects as follows: the present invention is by the combination of above-mentioned member, with the voltage waveform of detecting external ac power source and the mode of comparing with the voltage waveform of external ac power source and the voltage waveform of AC power for subsequent use, learn rapidly and correctly the voltage collapse situation of external ac power source, and can within the very short time, switch to AC power for subsequent use, with actual use situation, the cycle that existing known devices must detecting reaches one to three complete voltage waveform just can be made the reaction of cut-in stand-by power supply, reaches 20 to 60 milliseconds on the time; But the present invention can at-once monitor voltage waveform learns whether rapid drawdown of voltage, the time that switches to stand-by power supply only needs approximately 8 to 10 milliseconds, has shortened widely switching time, and has promoted the reaction speed of cut-in stand-by power supply simultaneously.
Accompanying drawing explanation
Fig. 1 is configuration diagram of the present invention
Fig. 2 is the circuit framework schematic diagram of comparison circuit of the present invention.
Embodiment
Below only with embodiment, the enforcement aspect that the present invention is possible is described, however not in order to limit the category of institute of the present invention wish protection, first give chat bright.
Refer to Fig. 1, it is detecting voltage conversion equipment provided by the present invention, it is mainly made up of a diverter switch 1, a full-wave rectifier 2, a zero point detection circuit 3, a comparison circuit 4 and a control unit 5, and the present invention is the magnitude of voltage that can detect by above-mentioned member the external ac power source 6 of a normality use, in the time finding the unusual conditions such as its voltage collapse, can switch to immediately an AC power 7 for subsequent use and continue to use, to maintain the normal operation of machinery equipment.The composition of detailed member of the present invention is as shown in following.
The present invention is located at machinery equipment 8 and receives the front end of power supply.The present invention has a diverter switch 1, one external ac power source 6 and an AC power 7 for subsequent use are connected to respectively this diverter switch 1, this diverter switch 1 is communicated in this external ac power source 6 normally, so that the power resources of drive machines equipment 8 to be provided, and this diverter switch 1 can be controlled and switch to and be communicated in this AC power 7 for subsequent use.
And this external ac power source 6 and this AC power 7 for subsequent use transmit respectively its voltage waveform signal to this full-wave rectifier 2, in order to the negative halfwave rectifier in the two waveform signal is become to positive half wave; Wherein in the present embodiment, this AC power 7 for subsequent use is first after conversion equipment 9 conversions, send waveform signal to this full-wave rectifier 2 with the AC power for subsequent use after conversion again, and above-mentioned conversion equipment 9 has an AC/DC transducer 91, a power supply storage equipment 92 and a DC/AC transducer 93, this AC power 7 for subsequent use is sequentially changed between direct current and alternating current through above-mentioned three devices, finally send tool one and stablize the alternating current of rated value voltage, and this AC power 7 for subsequent use is sent voltage waveform signal to this full-wave rectifier 2 with the state after changing.
After the voltage waveform rectification of external ac power source 6 and AC power for subsequent use 7 is positive half wave, the waveform signal of the two is sent to this zero point detection circuit 3, and it originates in same time point in order to the phase bit timing of adjusting the two, to obtain suitable and correct comparison basis.And be subject to two waveform signals after this zero point detection circuit 3 is adjusted to deliver to again this comparison circuit 4, wherein the circuit diagram of this comparison circuit 4 as shown in Figure 2, it is in order to compare the two in the amplitude of identical time point, and in the present embodiment, this comparison circuit 4 immediately compares the amplitude of the two, and this value is sent to this control unit 5.
And this control unit 5 receives after above-mentioned amplitude, the two is judged, in the time that the amplitude of these external ac power source 6 waveforms is less than the amplitude of these AC power 7 waveforms for subsequent use, represent the lower voltage of this external ac power source 6 and the voltage rating lower than AC power 7 for subsequent use, now 5 of this control units are sent switching command at once to this diverter switch 1, make the connection status of this diverter switch 1 Switching power, that is the state that is certainly communicated in external ac power source 6 switches to the state that is communicated in this AC power 7 for subsequent use, whereby to avoid the voltage collapse of external ac power source 6 to cause the deadlock of machinery equipment 8 and the situation shutting down, and can within the very short time, switch to stand-by power supply 7, to maintain the normal operation of machinery equipment 8.
The present invention is by the combination of above-mentioned member, with the voltage waveform of detecting external ac power source and the mode of comparing with the voltage waveform of external ac power source and the voltage waveform of AC power for subsequent use, learn rapidly and correctly the voltage collapse situation of external ac power source, and can within the very short time, switch to AC power for subsequent use, with actual use situation, the cycle that existing known devices must detecting reaches one to three complete voltage waveform just can be made the reaction of cut-in stand-by power supply, reaches 20 to 60 milliseconds on the time; But the present invention can at-once monitor voltage waveform learns whether rapid drawdown of voltage, the time that switches to stand-by power supply only needs approximately 8 to 10 milliseconds, has shortened widely switching time, and has promoted the reaction speed of cut-in stand-by power supply simultaneously.
Claims (2)
1. a detecting voltage conversion equipment, is characterized in that, it includes:
One diverter switch, an external ac power source and an AC power for subsequent use are connected to respectively this diverter switch, and this diverter switch is communicated in described external ac power source normally, and can be controlled and switch to and be communicated in described AC power for subsequent use;
One full-wave rectifier, described external ac power source and described AC power for subsequent use transmit respectively its voltage waveform signal to described full-wave rectifier, in order to the negative halfwave rectifier in the two waveform signal is become to positive half wave;
One zero point detection circuit, it is subject to two waveform signals after described full-wave rectifier rectification in order to receive, and the phase bit timing of adjusting the two originates in same time point;
One comparison circuit, it is subject to two waveform signals after described zero point detection circuit is adjusted in order to reception, and immediately compares the two in the amplitude of identical time point;
One control unit, it is in order to receive the amplitude of described comparison circuit output, and in the time that the amplitude of described external ac power source waveform is less than the amplitude of described AC power waveform for subsequent use, send switching command to this diverter switch, make described diverter switch switch to and be communicated in described AC power for subsequent use.
2. detecting voltage conversion equipment according to claim 1, is characterized in that, described AC power for subsequent use is first after a conversion equipment conversion, then sends waveform signal to described full-wave rectifier with the AC power for subsequent use after conversion;
Described conversion equipment has an AC/DC transducer, a power supply storage equipment and a DC/AC transducer, and described AC power for subsequent use is sequentially changed through above-mentioned three devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210395261.9A CN103779954A (en) | 2012-10-17 | 2012-10-17 | Voltage detecting and converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210395261.9A CN103779954A (en) | 2012-10-17 | 2012-10-17 | Voltage detecting and converting device |
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| Publication Number | Publication Date |
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| CN103779954A true CN103779954A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210395261.9A Pending CN103779954A (en) | 2012-10-17 | 2012-10-17 | Voltage detecting and converting device |
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| CN (1) | CN103779954A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094188A (en) * | 2014-05-23 | 2015-11-25 | 财团法人精密机械研究发展中心 | Voltage detection and compensation device |
| CN105093032A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Electricity abnormity early warning electrical cabinet based on intelligent household equipment |
| CN105096502A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household based malicious intrusion prevention early warning monitoring device |
| CN105093031A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household door with electricity abnormity early warning function |
| CN105093030A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Electricity abnormity early warning apparatus based on intelligent household system |
| CN105096503A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Detection device based on intelligent household power supply circuit |
| CN105137239A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Electricity abnormality detection equipment based on smart home |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104821A (en) * | 1986-07-18 | 1987-10-21 | 中国人民解放军海军勤务学院 | The slippage zero passage residual voltage frequency difference locking of generator, electrical network, phase place memory method for synchronism and device |
| WO1996022626A1 (en) * | 1995-01-18 | 1996-07-25 | Magnum Power Solutions Limited | Partitioned uninterruptible power supplies |
| US5909360A (en) * | 1995-01-18 | 1999-06-01 | Magnum Power Solutions Limited | Uninterruptible power supplies |
| CN1226099A (en) * | 1998-02-09 | 1999-08-18 | 富士电机株式会社 | Uninterruptible power supply apparatus |
| CN102055359A (en) * | 2009-11-06 | 2011-05-11 | Mgeups系统公司 | Multi level converter having at least five DC voltage levels and ups comprising the same |
| CN202931021U (en) * | 2012-10-17 | 2013-05-08 | 财团法人精密机械研究发展中心 | Voltage detecting and converting device |
-
2012
- 2012-10-17 CN CN201210395261.9A patent/CN103779954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104821A (en) * | 1986-07-18 | 1987-10-21 | 中国人民解放军海军勤务学院 | The slippage zero passage residual voltage frequency difference locking of generator, electrical network, phase place memory method for synchronism and device |
| WO1996022626A1 (en) * | 1995-01-18 | 1996-07-25 | Magnum Power Solutions Limited | Partitioned uninterruptible power supplies |
| US5909360A (en) * | 1995-01-18 | 1999-06-01 | Magnum Power Solutions Limited | Uninterruptible power supplies |
| CN1226099A (en) * | 1998-02-09 | 1999-08-18 | 富士电机株式会社 | Uninterruptible power supply apparatus |
| CN102055359A (en) * | 2009-11-06 | 2011-05-11 | Mgeups系统公司 | Multi level converter having at least five DC voltage levels and ups comprising the same |
| CN202931021U (en) * | 2012-10-17 | 2013-05-08 | 财团法人精密机械研究发展中心 | Voltage detecting and converting device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094188A (en) * | 2014-05-23 | 2015-11-25 | 财团法人精密机械研究发展中心 | Voltage detection and compensation device |
| CN105093032A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Electricity abnormity early warning electrical cabinet based on intelligent household equipment |
| CN105096502A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household based malicious intrusion prevention early warning monitoring device |
| CN105093031A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Intelligent household door with electricity abnormity early warning function |
| CN105093030A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Electricity abnormity early warning apparatus based on intelligent household system |
| CN105096503A (en) * | 2015-08-31 | 2015-11-25 | 成都科创城科技有限公司 | Detection device based on intelligent household power supply circuit |
| CN105137239A (en) * | 2015-08-31 | 2015-12-09 | 成都科创城科技有限公司 | Electricity abnormality detection equipment based on smart home |
| CN105096502B (en) * | 2015-08-31 | 2019-02-12 | 合肥市嘉辉电子科技有限公司 | A kind of anti-malicious intrusions early warning monitoring equipment based on smart home |
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Application publication date: 20140507 |