CN107796998A - A kind of three-phase power supply phase sequence detection circuit and detection method - Google Patents
A kind of three-phase power supply phase sequence detection circuit and detection method Download PDFInfo
- Publication number
- CN107796998A CN107796998A CN201711229442.3A CN201711229442A CN107796998A CN 107796998 A CN107796998 A CN 107796998A CN 201711229442 A CN201711229442 A CN 201711229442A CN 107796998 A CN107796998 A CN 107796998A
- Authority
- CN
- China
- Prior art keywords
- phase
- pin
- port
- resistance
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000819 phase cycle Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 5
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The present invention relates to a kind of three-phase power supply phase sequence detection circuit and detection method, three-phase mains voltage to be sent to single-chip microcomputer input mouth by sine wave shaped after Phototube Coupling into square-wave signal, then by RC circuits and phase inverter.By the phase sequence for being compared to determine three phase mains to the cycle detection result of P1 ports.Beneficial effect is, simple in construction using single-chip microcomputer as control core, component used is few, greatly simplify the circuit of testing the phase sequence of three phase mains, improves antijamming capability, simultaneously by real-time monitoring of the single-chip microcomputer to three phase mains waveform, the accuracy of testing result is also improved.
Description
Technical field
The present invention relates to a kind of power sense circuit, more particularly to a kind of three-phase power supply phase sequence detection circuit and detection side
Method.
Background technology
Electronics, electric power, instrument, automatically control with the phase sequence that in the equipment such as power electronics, generally requires to detect power supply, it is special
Be not in power electronic equipment, because the calculating of phase shifting angle in phase shifting control has to the phase and phase sequence according to power supply, because
And don't fail to be reliable and stable.And it is in use, or in general circuit of testing the phase sequence is bulky, or being easily disturbed, cause
Great unstability in the process of running be present in system.
Due to now electronics, electric power, instrument, automatically control with used in the equipment such as power electronics using one-chip computer as
The embedded system of representative has become universal development trend as control core, therefore, employs new technology and makes new phase
Sequence testing circuit has also become the trend of development.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of three-phase power supply phase sequence detection circuit and detection side
Method, simple in construction using single-chip microcomputer as control core, component used is few, can be greatly enhanced in detection process anti-interference and
Accuracy, the technical scheme adopted is that a kind of three-phase power supply phase sequence detects circuit, it is characterised in that：The U phases point of three phase mains
1 pin of negative pole, optical coupling isolator U1, U2 not with diode D3, D3 is connected, and V phases are connected with resistance R1, R1 other end connection
Diode D1 negative pole, the positive pole with diode D3, optical coupling isolator U1 2 pin are connected diode D1 positive pole respectively, W phases with
Resistance R2 is connected, R2 other end connection diode D2 negative pole, diode D2 the positive pole positive pole with diode D4, light respectively
Coupling isolator U2 2 pin are connected；Optical coupling isolator U1 4 pin connect VCC power supplys, 3 pin pass through the filter being made up of resistance R3, electric capacity C1
It is connected after wave circuit with resistance R5, the resistance R5 other end connects the phase inverter F pin of input 13, the phase inverter F pin of output end 12
It is connected with the I/O port P1.0 of single-chip microcomputer, optical coupling isolator U2 4 pin connect VCC power supplys；3 pin pass through by resistance R4, electric capacity C2 groups
Into filter circuit after be connected with resistance R6, the resistance R6 other end connects the phase inverter E pin of input 11, phase inverter E output
Hold the I/O port P1.1 connections of 10 pin and single-chip microcomputer.
Detection method is as follows, and 1）, judge whether port P1.0 is high level, if port P1.0 is high level, collection terminal
Mouth P1.0 trailing edges, be delayed 18ms, judges whether port P1.1 is low level, if the phase sequence of low level, then this three phase mains
For just, otherwise the phase sequence of power supply is anti-；2）If, port P1.0 be low level, gather port P1.0 rising edge, delay
10ms, judge whether port P1.1 is low level, if low level, then the phase sequence of this three phase mains is just, otherwise the phase of power supply
Sequence is anti-.
Principle be three-phase mains voltage after Phototube Coupling by sine wave shaped into square-wave signal, then by RC circuits and
Phase inverter is sent to single-chip microcomputer input mouth, by the phase for being compared to determine three phase mains to the cycle detection result of P1 ports
Sequence.
The beneficial effects of the invention are as follows：Simple in construction using single-chip microcomputer as control core, component used is few, greatly letter
Change the circuit of testing the phase sequence of three phase mains, improve antijamming capability, while the reality by single-chip microcomputer to three phase mains waveform
When monitor, also improve the accuracy of testing result.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of the present invention；
Fig. 2 is the detection method flow chart of the present invention.
Embodiment
As shown in figure 1, a kind of three-phase power supply phase sequence detection circuit, the U phases of three phase mains are negative with diode D3, D3 respectively
Pole, optical coupling isolator U1, U2 1 pin are connected, and V phases are connected with resistance R1, R1 other end connection diode D1 negative pole, two poles
The positive pole with diode D3, optical coupling isolator U1 2 pin are connected pipe D1 positive pole respectively, and W phases are connected with resistance R2, and R2's is another
End connection diode D2 negative pole, diode D2 the positive pole positive pole with diode D4, optical coupling isolator U2 respectively 2 pin phases
Even；Optical coupling isolator U1 4 pin connect VCC power supplys, 3 pin after the filter circuit being made up of resistance R3, electric capacity C1 with resistance R5
It is connected, the resistance R5 other end connects the phase inverter F pin of input 13, the phase inverter F pin of output end 12 and the I/O port of single-chip microcomputer
P1.0 connections, optical coupling isolator U2 4 pin connect VCC power supplys；3 pin after the filter circuit being made up of resistance R4, electric capacity C2 with
Resistance R6 is connected, and the resistance R6 other end connects the phase inverter E pin of input 11, the phase inverter E pin of output end 10 and single-chip microcomputer
I/O port P1.1 connections.
As shown in Fig. 2 detection method is as follows,
1）, judge whether port P1.0 is high level, if port P1.0 is high level, gather port P1.0 trailing edges, delay
18ms, judge whether port P1.1 is low level, if low level, then the phase sequence of this three phase mains is just, otherwise the phase of power supply
Sequence is anti-；
2）If, port P1.0 be low level, gather port P1.0 rising edge, be delayed 10ms, judge port P1.1 whether be
Low level, if low level, then the phase sequence of this three phase mains is just, otherwise the phase sequence of power supply is anti-.
Claims (2)
1. a kind of three-phase power supply phase sequence detects circuit, it is characterised in that：The U phases of three phase mains are negative with diode D3, D3 respectively
Pole, optical coupling isolator U1, U2 1 pin are connected, and V phases are connected with resistance R1, R1 other end connection diode D1 negative pole, two poles
The positive pole with diode D3, optical coupling isolator U1 2 pin are connected pipe D1 positive pole respectively, and W phases are connected with resistance R2, and R2's is another
End connection diode D2 negative pole, diode D2 the positive pole positive pole with diode D4, optical coupling isolator U2 respectively 2 pin phases
Even；Optical coupling isolator U1 4 pin connect VCC power supplys, 3 pin after the filter circuit being made up of resistance R3, electric capacity C1 with resistance R5
It is connected, the resistance R5 other end connects the phase inverter F pin of input 13, the phase inverter F pin of output end 12 and the I/O port of single-chip microcomputer
P1.0 connections, optical coupling isolator U2 4 pin connect VCC power supplys；3 pin after the filter circuit being made up of resistance R4, electric capacity C2 with
Resistance R6 is connected, and the resistance R6 other end connects the phase inverter E pin of input 11, the phase inverter E pin of output end 10 and single-chip microcomputer
I/O port P1.1 connections.
2. using a kind of detection method of three-phase power supply phase sequence detection circuit described in claim 1, it is characterised in that：Detection side
Method is as follows,
1）, judge whether port P1.0 is high level, if port P1.0 is high level, gather port P1.0 trailing edges, delay
18ms, judge whether port P1.1 is low level, if low level, then the phase sequence of this three phase mains is just, otherwise the phase of power supply
Sequence is anti-；
2）If, port P1.0 be low level, gather port P1.0 rising edge, be delayed 10ms, judge port P1.1 whether be
Low level, if low level, then the phase sequence of this three phase mains is just, otherwise the phase sequence of power supply is anti-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229442.3A CN107796998A (en) | 2017-11-29 | 2017-11-29 | A kind of three-phase power supply phase sequence detection circuit and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229442.3A CN107796998A (en) | 2017-11-29 | 2017-11-29 | A kind of three-phase power supply phase sequence detection circuit and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107796998A true CN107796998A (en) | 2018-03-13 |
Family
ID=61536940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711229442.3A Pending CN107796998A (en) | 2017-11-29 | 2017-11-29 | A kind of three-phase power supply phase sequence detection circuit and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107796998A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569706U (en) * | 2009-12-16 | 2010-09-01 | 台安科技(无锡)有限公司 | Phase sequence detection circuit of three-phase power supply |
| CN102044861A (en) * | 2010-11-11 | 2011-05-04 | 苏州合欣美电子科技有限公司 | Three-phase electricity detection and protection circuit of ecological house |
| CN102841287A (en) * | 2012-08-27 | 2012-12-26 | 四川长虹电器股份有限公司 | Three-phase power circuit detection method and three-phase power circuit detection system |
| CN103344848A (en) * | 2013-07-09 | 2013-10-09 | 扬州电力设备修造厂 | Three-phase power source default phase judgment and phase sequence detection device based on multiple microprocessors and detection method of three-phase power source default phase judgment and phase sequence |
| CN204101644U (en) * | 2014-08-07 | 2015-01-14 | 深圳市安邦信电子有限公司 | Three-phase voltage phase sequence testing circuit |
| CN204882727U (en) * | 2015-04-30 | 2015-12-16 | 深圳市嘉力电气技术有限公司 | Scarce phase sequence detection circuit that reaches mutually of three -phase input voltage |
| CN205280830U (en) * | 2015-12-31 | 2016-06-01 | 常州电站辅机总厂有限公司 | Three phase current phase sequence and open -phase detecting circuit for electric actuator |
| CN106124872A (en) * | 2016-08-31 | 2016-11-16 | 南京康尼电子科技有限公司 | A kind of open phases of three-phase power source, detection of power loss system and braking method |
| CN106771681A (en) * | 2017-03-28 | 2017-05-31 | 核工业理化工程研究院 | The three-phase alternating current detection device for phase sequence and its detection method of a kind of induction heating equipment of medium frequency |
| CN207611095U (en) * | 2017-11-29 | 2018-07-13 | 中环天仪股份有限公司 | A kind of three-phase power supply phase sequence detection circuit |
-
2017
- 2017-11-29 CN CN201711229442.3A patent/CN107796998A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569706U (en) * | 2009-12-16 | 2010-09-01 | 台安科技(无锡)有限公司 | Phase sequence detection circuit of three-phase power supply |
| CN102044861A (en) * | 2010-11-11 | 2011-05-04 | 苏州合欣美电子科技有限公司 | Three-phase electricity detection and protection circuit of ecological house |
| CN102841287A (en) * | 2012-08-27 | 2012-12-26 | 四川长虹电器股份有限公司 | Three-phase power circuit detection method and three-phase power circuit detection system |
| CN103344848A (en) * | 2013-07-09 | 2013-10-09 | 扬州电力设备修造厂 | Three-phase power source default phase judgment and phase sequence detection device based on multiple microprocessors and detection method of three-phase power source default phase judgment and phase sequence |
| CN204101644U (en) * | 2014-08-07 | 2015-01-14 | 深圳市安邦信电子有限公司 | Three-phase voltage phase sequence testing circuit |
| CN204882727U (en) * | 2015-04-30 | 2015-12-16 | 深圳市嘉力电气技术有限公司 | Scarce phase sequence detection circuit that reaches mutually of three -phase input voltage |
| CN205280830U (en) * | 2015-12-31 | 2016-06-01 | 常州电站辅机总厂有限公司 | Three phase current phase sequence and open -phase detecting circuit for electric actuator |
| CN106124872A (en) * | 2016-08-31 | 2016-11-16 | 南京康尼电子科技有限公司 | A kind of open phases of three-phase power source, detection of power loss system and braking method |
| CN106771681A (en) * | 2017-03-28 | 2017-05-31 | 核工业理化工程研究院 | The three-phase alternating current detection device for phase sequence and its detection method of a kind of induction heating equipment of medium frequency |
| CN207611095U (en) * | 2017-11-29 | 2018-07-13 | 中环天仪股份有限公司 | A kind of three-phase power supply phase sequence detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102662104B (en) | Zero-crossing detection method and circuit | |
| CN202583311U (en) | Alternating current zero-crossing detection circuit | |
| CN206649078U (en) | A kind of electric resistance partial pressure type voltage over zero detects circuit | |
| CN202383199U (en) | Phase sequence and zero cross detection circuit structure | |
| CN106597075A (en) | Alternating voltage detection device and method | |
| CN205068033U (en) | Detection control circuit of water level perception device | |
| CN207611095U (en) | A kind of three-phase power supply phase sequence detection circuit | |
| CN103926516B (en) | Online diode detection circuit | |
| CN203688642U (en) | Power failure detection circuit | |
| CN106383264A (en) | Anti-interference high-precision zero-crossing detection method | |
| CN107796998A (en) | A kind of three-phase power supply phase sequence detection circuit and detection method | |
| CN106199458A (en) | A kind of power sense circuit | |
| CN204287447U (en) | A kind of alternating current-direct current input detecting circuit | |
| CN101738526B (en) | Direct current output voltage test circuit for power factor correction control circuit | |
| CN205506958U (en) | Hand over direct current switch volume detection circuitry | |
| CN105866533B (en) | A kind of Multifunctional single-phase time-sharing electricity meter | |
| CN104267254B (en) | A kind of sinusoidal current reactive power detection method | |
| CN104991111B (en) | A kind of wide range AC signal zero crossing detection method and device | |
| CN105004908B (en) | Single hot voltage zero crossing detection device and detection method | |
| CN209560015U (en) | A kind of zero firewire of controller and ground line detection circuit | |
| CN207424116U (en) | Detection circuit | |
| CN204156762U (en) | A kind of three phase electric machine current over-zero checkout gear of Electronic Soft Starter | |
| CN206524773U (en) | A kind of rectifier | |
| CN208672232U (en) | A kind of full automatic biochemical apparatus apparatus for testing weeping | |
| CN208636374U (en) | A kind of a-c cycle detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |