CN106199275A - A kind of device for power quality analysis - Google Patents
A kind of device for power quality analysis Download PDFInfo
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- CN106199275A CN106199275A CN201610584747.5A CN201610584747A CN106199275A CN 106199275 A CN106199275 A CN 106199275A CN 201610584747 A CN201610584747 A CN 201610584747A CN 106199275 A CN106199275 A CN 106199275A
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- module
- signal
- microprocessor
- power
- regulated kinase
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a kind of device for power quality analysis, including voltage signal acquisition module, current signal collection module, Signal-regulated kinase and microprocessor, the outfan of voltage signal acquisition module and current signal collection module is connected to the input of Signal-regulated kinase；The input of microprocessor connects isolated variable module, Power Supply Monitoring and power down protection module and function button；The outfan of microprocessor connects display module and memory module；The outfan of Signal-regulated kinase is connected to isolated variable module.The present invention is by arranging voltage signal acquisition module and current signal collection module, it is achieved monitor the electrical energy parameter in three-phase circuit in real time；By memory module storage monitoring data with by display module display monitoring data, it is simple to inquiry and on-site supervision；By Power Supply Monitoring and power down protection module, prevent loss of data in the case of accident power-off；Realize remotely monitoring by host computer, improve work efficiency.
Description
Technical field
The invention belongs to technical field of electricity, particularly relate to a kind of device for power quality analysis.
Background technology
In modern society, electric energy is a kind of the most widely used energy, and its level of application is a national development level
One of outstanding feature.Along with science and technology and the development of national economy, all trades and professions requirement to power system power supply quality
More and more higher.Meanwhile, the extensively application of modern power electronics technology causes electric energy to pollute and is on the rise, a large amount of power electronic devices
Pour in each industrial circle with non-linear equipment, make the quality of power supply of power system be severely impacted and threaten.Utility network supplies
, even there is the security incident caused because of harmonic wave interference, seriously threaten the peace of power system in going from bad to worse of electricity quality
Complete and stable operation, simultaneously to the normal work of user power utilization equipment and industrial and agricultural production continue efficiently produce the most disadvantageous
Impact.
Therefore, research and develop device reliable, advanced, power quality analysis easily, be to advance the quality of power supply online
Monitoring and repair based on condition of component work basis and premise.
Summary of the invention
It is an object of the invention to provide a kind of device for power quality analysis, by gathering the electricity in three-phase circuit
Energy parameter, through microprocessor analysis and calculating, is shown by display module and stores record, it is simple to monitoring in real time and inquiry, logical
Cross host computer and realize remotely monitoring, solve that existing three-phase circuit hidden danger is many and the problem of inconvenient monitoring.
For solving above-mentioned technical problem, the present invention is achieved by the following technical solutions:
The present invention is a kind of device for power quality analysis, including voltage signal acquisition module, current signal collection
Module, Signal-regulated kinase and microprocessor, the outfan of described voltage signal acquisition module and current signal collection module is equal
It is connected to the input of Signal-regulated kinase；The input of described microprocessor connect have isolated variable module, Power Supply Monitoring and
Power down protection module and function button；The outfan of described microprocessor connects display module and memory module；Described signal
The outfan of conditioning module is connected to isolated variable module；Described microprocessor is also associated with RS485 interface, and described RS485 connects
Mouth connects host computer.
Further, described voltage signal acquisition module voltage signal in the three-phase circuit be transported to signal
Conditioning module, described current signal collection module is for gathering the current signal in three-phase circuit and being transported to signal condition
Module；Described Signal-regulated kinase is delivered to isolation and becomes after respectively the voltage signal received, current signal are carried out Shape correction
Die change block；The voltage signal after Signal-regulated kinase shaping received and current signal are located by described isolated variable module respectively
Reason is voltage digital signal, current digital signal, and transmits it to microprocessor.
Further, the described microprocessor voltage digital signal from isolated variable module to receiving and current digital
Signal is analyzed and calculates, thus forms monitoring data, and microprocessor is by display module display monitoring data and by depositing
Storage module stores monitoring data, wherein supervision packet includes electric current, voltage, active power, reactive power, power factor and frequency
Rate；Described Power Supply Monitoring and power down protection module be timely microprocessor power supply under powering-off state；Described function button is used for
By microprocessor, the monitoring data in memory module are inquired about or initialization operation；Described microprocessor passes through RS485
Interface and host computer interact communication；Monitoring data in memory module are inquired about by described host computer by microprocessor
Or initialize.
Further, described voltage signal acquisition module is voltage transformer, and described current signal collection module is electric current
Transformer, described Signal-regulated kinase is bridge rectifier filter circuit, and described isolated variable module includes photoisolator and A/D
Transducer, described microprocessor uses STM32F103 single-chip microcomputer, described Power Supply Monitoring and power down protection module to use lithium battery,
Described host computer is computer or communication manager or PLC or data acquisition unit, and described display module is LCD display, described
Memory module is eeprom memory.
The method have the advantages that
The present invention is by arranging voltage signal acquisition module and current signal collection module, it is achieved to the electricity in three-phase circuit
Can parameter real time monitoring；By memory module storage monitoring data with by display module display monitoring data, it is simple to inquiry and
On-site supervision；By Power Supply Monitoring and power down protection module, prevent loss of data in the case of accident power-off；Realized by host computer
Remotely monitoring, improves work efficiency.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, embodiment will be described required use below
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is the composition frame chart of a kind of device for power quality analysis of the present invention；
In accompanying drawing, the list of parts representated by each label is as follows:
1-voltage signal acquisition module, 2-current signal collection module, 3-Signal-regulated kinase, 4-isolated variable module,
5-microprocessor, 6-Power Supply Monitoring and power down protection module, 7-RS485 interface, 8-host computer, 9-function button, 10-shows mould
Block, 11-memory module.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all other
Embodiment, broadly falls into the scope of protection of the invention.
Referring to shown in Fig. 1, the present invention is a kind of device for power quality analysis, including voltage signal acquisition module
1, current signal collection module 2, Signal-regulated kinase 3, isolated variable module 4, microprocessor 5, Power Supply Monitoring and power down protection
Module 6, RS485 interface 7, host computer 8, function button 9, display module 10 and memory module 11, voltage signal acquisition module 1 He
The outfan of current signal collection module 2 is connected to the input of Signal-regulated kinase 3, and the outfan of Signal-regulated kinase 3 is even
Be connected to the input of isolated variable module 4, the input of microprocessor 5 respectively with isolated variable module 4, function button 9 and electricity
Source monitoring and power down protection module 6 outfan electrical connection, the outfan of microprocessor 5 respectively with display module 10 and store mould
The input electrical connection of block 11, microprocessor 5 connects host computer 8 by RS485 interface 7, host computer 8 by RS485 interface 7 with
Interactive correspondence between microprocessor 5；Shielded Twisted Pair is used to be connected between host computer 8 with RS485 interface 7, Shielded Twisted Pair
Use length 1200 meters, for ensureing communication quality, the use length of Shielded Twisted Pair 300 meters.
As it is shown in figure 1, voltage signal acquisition module 1 is for gathering the voltage signal in three-phase circuit and being transported to letter
Number conditioning module 3, current signal collection module 2 is for gathering the current signal in three-phase circuit and being transported to signal condition
Module 3；Signal-regulated kinase 3 is delivered to isolated variable after respectively the voltage signal received, current signal are carried out Shape correction
Module 4；The voltage signal after Signal-regulated kinase 3 shaping received and current signal are processed by isolated variable module 4 respectively
For voltage digital signal, current digital signal, and transmit it to microprocessor 5；The self-isolation that comes received is become by microprocessor 5
The voltage digital signal of die change block 4 and current digital signal are analyzed and calculate, thus form monitoring data, the most micro-process
Monitoring data are shown stored with memory module 11 by display modules 10 by device 5, and wherein supervision packet includes electric current, electricity
Pressure, active power, reactive power, power factor and frequency；Function button 9 is used for by microprocessor 5 in memory module 11
Monitoring data carry out inquiring about or initialization operation；Power Supply Monitoring and power down protection module 6 are given micro-under powering-off state in time
Processor 5 is powered, and prevents from monitoring loss of data；Host computer 8 obtains the monitoring data of microprocessor 5 by RS485 interface 7, on
Position machine 8 has to be inquired about or initialized function the monitoring data in memory module 11 by microprocessor 5, thus realizes
Remotely monitoring.
As it is shown in figure 1, wherein, voltage signal acquisition module 1 is threephase potential transformer, and current signal collection module 2 is
Threephase current transformer, Signal-regulated kinase 3 is bridge rectifier filter circuit, isolated variable module 4 include photoisolator and
A/D converter, microprocessor 5 uses STM32F103 single-chip microcomputer, Power Supply Monitoring and power down protection module 6 to use lithium battery, upper
Machine 8 is computer or communication manager or PLC or data acquisition unit, and display module 10 is LCD display, and memory module 11 is
Eeprom memory.
One of the present embodiment has particular application as: gathered by voltage signal acquisition module 1 and current signal collection module 2
Overvoltage signal in spark gap operating circuit and current discharge signal, at Signal-regulated kinase 3 and isolated variable module 4
Reach microprocessor 5 after reason, thus realize on-line monitoring；The microprocessor 5 overvoltage signal to receiving and current discharge signal
Analyze and calculate, shown in time by display module 10, and by memory module 11 storage monitoring data, it is simple to query monitor is remembered
Record；, once there is powering-off state in Power Supply Monitoring and the power down protection module 6 power supply situation by monitoring microprocessor 5, power supply is supervised
Control and power down protection module 6 will be powered in time, in order to monitoring data preserve smoothly, thus prevent from monitoring loss of data；Upper
Machine 8 accesses microprocessor 5 by RS485 interface 7, it is simple to obtain in real time or query monitor data, thus sets up remotely monitoring, with
Improve work efficiency.
In the description of this specification, the description of reference term " embodiment ", " example ", " concrete example " etc. means
Specific features, structure, material or feature in conjunction with this embodiment or example description is contained at least one enforcement of the present invention
In example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.
And, the specific features of description, structure, material or feature can be to close in any one or more embodiments or example
Suitable mode combines.
It is last it should be noted that present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.Excellent
Select embodiment not have all of details of detailed descriptionthe, be also not intended to the detailed description of the invention that this invention is only described.Obviously, root
According to the content of this specification, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, be in order to
Preferably explain the principle of the present invention and actual application, so that skilled artisan can be best understood by and utilize
The present invention.The present invention is only limited by claims and four corner thereof and equivalent.
Claims (4)
1. the device for power quality analysis, it is characterised in that: include voltage signal acquisition module (1), current signal
Acquisition module (2), Signal-regulated kinase (3) and microprocessor (5), described voltage signal acquisition module (1) and current signal are adopted
The outfan of collection module (2) is connected to the input of Signal-regulated kinase (3)；The input of described microprocessor (5) connects to be had
Isolated variable module (4), Power Supply Monitoring and power down protection module (6) and function button (9)；The output of described microprocessor (5)
End connection has display module (10) and memory module (11)；The outfan of described Signal-regulated kinase (3) is connected to isolated variable
Module (4)；Described microprocessor (5) is also associated with RS485 interface (7)；Described RS485 interface (7) connects host computer (8).
A kind of device for power quality analysis the most according to claim 1, it is characterised in that: described voltage signal is adopted
Collection module (1) is used for the voltage signal in three-phase circuit and is transported to Signal-regulated kinase (3), described current signal collection
Module (2) is for gathering the current signal in three-phase circuit and being transported to Signal-regulated kinase (3)；Described signal condition mould
Block (3) is delivered to isolated variable module (4) after respectively the voltage signal received, current signal are carried out Shape correction；Described every
From conversion module (4), the voltage signal after Signal-regulated kinase (3) shaping received and current signal are processed as electricity respectively
Pressure digital signal, current digital signal, and transmit it to microprocessor (5).
A kind of device for power quality analysis the most according to claim 1 and 2, it is characterised in that: described micro-process
The device (5) voltage digital signal from isolated variable module (4) to receiving and current digital signal are analyzed and calculate, from
And forming monitoring data, described microprocessor (5) is by display module (10) display monitoring data and by memory module (11)
Storage monitoring data, wherein supervision packet includes electric current, voltage, active power, reactive power, power factor and frequency；Described
Power Supply Monitoring and power down protection module (6) be microprocessor (5) power supply in time under powering-off state；Described function button (9) is used
In by microprocessor (5), the monitoring data in memory module (11) being inquired about or initialization operation；Described microprocessor
(5) communication is interacted by RS485 interface (7) and host computer (8)；Described host computer (8) passes through microprocessor (5) to storage
Monitoring data in module (11) are inquired about or are initialized.
A kind of device for power quality analysis the most according to claim 1, it is characterised in that: described voltage signal is adopted
Integrating module (1) as voltage transformer, described current signal collection module (2) is current transformer, described Signal-regulated kinase (3)
For bridge rectifier filter circuit, described isolated variable module (4) includes photoisolator and A/D converter, described microprocessor
(5) STM32F103 single-chip microcomputer, described Power Supply Monitoring and power down protection module (6) is used to use lithium battery, described host computer (8)
For computer or communication manager or PLC or data acquisition unit, described display module (10) is LCD display, described storage mould
Block (11) is eeprom memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584747.5A CN106199275A (en) | 2016-07-22 | 2016-07-22 | A kind of device for power quality analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584747.5A CN106199275A (en) | 2016-07-22 | 2016-07-22 | A kind of device for power quality analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106199275A true CN106199275A (en) | 2016-12-07 |
Family
ID=57492253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610584747.5A Pending CN106199275A (en) | 2016-07-22 | 2016-07-22 | A kind of device for power quality analysis |
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| CN (1) | CN106199275A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954574A (en) * | 2016-07-22 | 2016-09-21 | 安徽亚辉电气自动化有限公司 | Measurement and control system for switch cabinet zero-sequence current |
| CN108107787A (en) * | 2017-12-26 | 2018-06-01 | 大连函量科技发展有限公司 | A kind of apparatus for monitoring power supply |
| CN109541355A (en) * | 2018-12-12 | 2019-03-29 | 许昌学院 | A kind of power quality monitoring system for intelligent power grid |
| CN110224488A (en) * | 2019-06-19 | 2019-09-10 | 广州炫通电气科技有限公司 | Electric quantity metering and equipment for monitoring power quality and system |
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| US6772075B2 (en) * | 1997-12-09 | 2004-08-03 | Antony Cozart Parsons | System and method for locating a disturbance in a power system based upon disturbance power and energy |
| CN201066378Y (en) * | 2007-08-20 | 2008-05-28 | 李义星 | Online monitoring device for power line insulation |
| CN102323480A (en) * | 2011-05-19 | 2012-01-18 | 西南交通大学 | A kind of power quality analysis method based on the Hilbert-Huang conversion |
| US20120019965A1 (en) * | 2010-07-20 | 2012-01-26 | Faxvog Frederick R | Continuous Uninterruptable AC Grounding System for Power System Protection |
| CN103018552A (en) * | 2012-12-14 | 2013-04-03 | 深圳职业技术学院 | Three-phase digital type intelligent electricity meter |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6772075B2 (en) * | 1997-12-09 | 2004-08-03 | Antony Cozart Parsons | System and method for locating a disturbance in a power system based upon disturbance power and energy |
| CN201066378Y (en) * | 2007-08-20 | 2008-05-28 | 李义星 | Online monitoring device for power line insulation |
| US20120019965A1 (en) * | 2010-07-20 | 2012-01-26 | Faxvog Frederick R | Continuous Uninterruptable AC Grounding System for Power System Protection |
| CN102323480A (en) * | 2011-05-19 | 2012-01-18 | 西南交通大学 | A kind of power quality analysis method based on the Hilbert-Huang conversion |
| CN103018552A (en) * | 2012-12-14 | 2013-04-03 | 深圳职业技术学院 | Three-phase digital type intelligent electricity meter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954574A (en) * | 2016-07-22 | 2016-09-21 | 安徽亚辉电气自动化有限公司 | Measurement and control system for switch cabinet zero-sequence current |
| CN108107787A (en) * | 2017-12-26 | 2018-06-01 | 大连函量科技发展有限公司 | A kind of apparatus for monitoring power supply |
| CN109541355A (en) * | 2018-12-12 | 2019-03-29 | 许昌学院 | A kind of power quality monitoring system for intelligent power grid |
| CN110224488A (en) * | 2019-06-19 | 2019-09-10 | 广州炫通电气科技有限公司 | Electric quantity metering and equipment for monitoring power quality and system |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161207 |