CN102879748A - DC power ripple monitoring apparatus - Google Patents
DC power ripple monitoring apparatus Download PDFInfo
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- CN102879748A CN102879748A CN2011101958758A CN201110195875A CN102879748A CN 102879748 A CN102879748 A CN 102879748A CN 2011101958758 A CN2011101958758 A CN 2011101958758A CN 201110195875 A CN201110195875 A CN 201110195875A CN 102879748 A CN102879748 A CN 102879748A
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Abstract
The invention relates to a DC power ripple monitoring apparatus, which comprises a DC power. The DC power ripple monitoring apparatus is characterized by further comprising an AC-DC separating circuit, a signal conditioning circuit, an analogue-to-digital (AD) converting chip, a processing device, a keyboard, a display device and a communicating circuit; the DC power is connected with the AC-DC separating circuit; the AC-DC separating circuit is connected with the AD converting chip through the signal conditioning circuit; the AD converting chip is connected with the processing device; and the keyboard, the display device and the communicating circuit are connected outside the processing device. With the adoption of the DC power ripple monitoring apparatus, the DC voltage, the nipple coefficient and the nipple voltage of the DC power can be monitored in real time without artificial interference; and in addition, the data of the DC power can be sent to outer side through the communicating circuit, so that the data are convenient to inquire and monitor.
Description
Technical field
The present invention relates to a kind of direct supply ripple wave monitoring device.
Background technology
Owing to DC stable power supply is generally formed through links such as rectifying and voltage-stabilizings by AC power, just what are with Alternating Component in the direct supply of output inevitably for this, and we just are referred to as ripple to this AC compounent that is superimposed upon on the DC stabilization amount.The producing method of different its ripples of direct supply is also different, and the composition of the ripple that it is main is all comparatively complicated, and its form is generally the harmonic wave that frequency is higher than the similar sine wave of power frequency, and is another kind of then be the pulsating wave of narrower in width.
Continuous progress along with the New Type High frequency Switch Source technology, its high-power technology and high stability make the advantages such as high frequency switch power has the reliability height, maintenance is little, volume is little, ripple is little, the precision of voltage regulation is good, precision of steady current is high, usability is remarkable, are widely applied.Domestic substation field all a large amount of installation novel direct supply, make direct supply obtain further application to the charging set of valve-regulated battery and high frequency electric source.
Novel valve-control type lead-acid accumulator is because its structural principle, production technology is compared with open cell that larger variation is arranged; Small size, barren liquor type have all proposed Secretary to charging set and its applied environment, just the ripple factor of direct supply are monitored and have proposed clear and definite regulation, particularly its power supply quality are had higher requirement.As everyone knows, valve controlling type accumulator requires very strict to the ripple of charging set, the ripple factor of direct supply directly plays important impact to the safety of electrical network, point out among the DL/T 5044-95 " fuel-burning power plant, transforming station direct current system designing technique regulation ": when silicon rectifying charging unit and accumulator parallel running, should be greater than 2% by the ripple factor that charging equipment causes; DL 478-92 " static relay protection and automatic safety device general technical specifications " stipulates that also the d.c.power voltage ripple coefficient should be greater than 2%; Because ripple factor causes central signal device misoperation and high frequency relay protection mistaking signal than conference, the DL/724-2000 standard has also clearly proposed the requirement of direct supply ripple; GB/T856-2005 has illustrated the importance of direct supply ripple.
Present dispatch from the factory product generally possess skills performance index height, characteristics that monitoring function is strong of direct supply complete equipment manufacturing plant, but most of direct supply complete equipment are not all considered the operational monitoring requirement of ripple factor, and this stays hidden danger in the actual motion of product.
Ripple factor is monitored, and mode has several:
(1) operation, maintainer utilize the regular personal monitoring's busbar voltage of oscillograph AC compounent.
(2) measure ripple voltage with ac millivoltmeter, because ac millivoltmeter is only to the alternating voltage response, and remolding sensitivity is higher, can measure very little alternating voltage, and ripple smaller alternating voltage often
Above monitoring mode is loaded down with trivial details, discontinuous, is applicable to still not possess the DC power system of ripple factor monitoring, alarming function and DC power system when the interim off-the-line operation of accumulator, must constantly carry out the personal monitoring, brings great inconvenience.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of and can overcome defects, easy to use, effectively detect the direct supply ripple, improve direct supply service efficiency and the direct supply ripple wave monitoring device in serviceable life.
The technical solution adopted for the present invention to solve the technical problems is: described direct supply ripple wave monitoring device, comprise direct supply, it is characterized in that: also comprise and hand over straight separation circuit, signal conditioning circuit, AD conversion chip, treating apparatus, keyboard, display and communicating circuit, direct supply connects hands over straight separation circuit, hand over straight separation circuit to connect the AD conversion chip by signal conditioning circuit, the AD conversion chip connects treating apparatus, and treating apparatus is circumscribed with keyboard, display and communicating circuit.
Described communicating circuit is the RS485 communicating circuit.
Described communicating circuit RS232 communicating circuit.
During use, direct supply is by handing over straight separation circuit separation place DC component and AC compounent, the DC component that decomposites and AC compounent enter the AD conversion chip by signal conditioning circuit, the AD conversion chip is digital signal with analog signal conversion, the digital signal of conversion enters treating apparatus analysis and obtains DC voltage, ripple factor, the data of ripple voltage, and by display these three values are shown.Simultaneously treating apparatus sends the data of direct supply to host computer by RS485 communicating circuit or RS232 communicating circuit and carries out statistical study, makes things convenient for the inquiry of data.
Wherein treating apparatus is single-chip microcomputer and peripheral circuit thereof, the preferred STM32F103ZCT6 CortexM3 of single-chip microcomputer kernel, and 32 arm processors, the AD conversion chip adopts the AD7266 ultra high speed A/D conversion chip of ADI.
The beneficial effect that the present invention has is: the DC voltage that this equipment can the Real-Time Monitoring direct supply, and ripple factor, ripple voltage does not need manual intervention, and can send by communicating circuit the data of direct supply, convenient inquiry and monitoring to the external world.
Description of drawings
Fig. 1 is frame principle figure of the present invention;
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
As shown in Figure 1, described direct supply ripple wave monitoring device, comprise direct supply, it is characterized in that: also comprise and hand over straight separation circuit, signal conditioning circuit, AD conversion chip, treating apparatus, keyboard, display and communicating circuit, direct supply connects hands over straight separation circuit, hand over straight separation circuit to connect the AD conversion chip by signal conditioning circuit, the AD conversion chip connects treating apparatus, and treating apparatus is circumscribed with keyboard, display and communicating circuit.Communicating circuit is the RS485 communicating circuit.
During use, direct supply is by handing over straight separation circuit separation place DC component and AC compounent, the DC component that decomposites and AC compounent enter the AD conversion chip by signal conditioning circuit, the AD conversion chip is digital signal with analog signal conversion, the digital signal of conversion enters treating apparatus analysis and obtains DC voltage, ripple factor, the data of ripple voltage, and by display these three values are shown.Simultaneously treating apparatus sends the data of direct supply to host computer by the RS485 communicating circuit and carries out statistical study, makes things convenient for the user to data query.
Wherein treating apparatus is single-chip microcomputer and peripheral circuit thereof, the preferred STM32F103ZCT6 CortexM3 of single-chip microcomputer kernel, and 32 arm processors, the AD conversion chip adopts the AD7266 ultra high speed A/D conversion chip of ADI.
Claims (3)
1. direct supply ripple wave monitoring device, comprise direct supply, it is characterized in that: also comprise and hand over straight separation circuit, signal conditioning circuit, AD conversion chip, treating apparatus, keyboard, display and communicating circuit, direct supply connects hands over straight separation circuit, hand over straight separation circuit to connect the AD conversion chip by signal conditioning circuit, the AD conversion chip connects treating apparatus, and treating apparatus is circumscribed with keyboard, display and communicating circuit.
2. direct supply ripple wave monitoring device according to claim 1, it is characterized in that: described communicating circuit is the RS485 communicating circuit.
3. direct supply ripple wave monitoring device according to claim 1 is characterized in that: described communicating circuit RS232 communicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101958758A CN102879748A (en) | 2011-07-13 | 2011-07-13 | DC power ripple monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101958758A CN102879748A (en) | 2011-07-13 | 2011-07-13 | DC power ripple monitoring apparatus |
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| CN102879748A true CN102879748A (en) | 2013-01-16 |
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| CN2011101958758A Pending CN102879748A (en) | 2011-07-13 | 2011-07-13 | DC power ripple monitoring apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427485A (en) * | 2013-09-09 | 2013-12-04 | 国家电网公司 | Device used for detecting direct current power supply connected to alternating current power supply and direct current power supply ripples and used in transformer substation |
| CN103941197A (en) * | 2014-04-17 | 2014-07-23 | 苏州市华东电网电气有限公司 | Monitoring device and method for direct-current power source complete equipment ripple factor |
| CN104422899A (en) * | 2013-09-05 | 2015-03-18 | 上海龙创节能系统股份有限公司 | Monitoring device applied to high-power direct-current power-supply system |
| CN105372501A (en) * | 2015-11-13 | 2016-03-02 | 江苏省电力公司无锡供电公司 | Online DC power ripple and battery inner resistance monitoring system |
| CN107015167A (en) * | 2016-12-30 | 2017-08-04 | 国网天津市电力公司 | A kind of Switching Power Supply ripple voltage detection method based on detection techniques |
| CN107329096A (en) * | 2017-07-25 | 2017-11-07 | 北京航天恒容电磁科技有限公司 | A kind of power supply signal collection feature extraction device based on ARM frameworks |
| CN108957356A (en) * | 2018-05-31 | 2018-12-07 | 国网吉林省电力有限公司长春供电公司 | A kind of DC power supply detection device |
| CN111398844A (en) * | 2020-03-10 | 2020-07-10 | 深圳供电局有限公司 | Ripple peak sampling circuit and direct current system monitoring device |
| CN116169770A (en) * | 2023-03-09 | 2023-05-26 | 惠州华智新能源科技有限公司 | Bidirectional UPS photovoltaic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456171Y (en) * | 2000-12-18 | 2001-10-24 | 无锡市斯达自控设备厂 | On line ripple determiner |
| US6977518B2 (en) * | 2002-11-11 | 2005-12-20 | Matsushita Electric Works, Ltd. | Electrical leak detecting apparatus |
| CN201141885Y (en) * | 2007-12-26 | 2008-10-29 | 上海市电力公司超高压输变电公司 | Ripple voltage and bus-bar voltage monitoring relay of transforming station DC system |
| CN201311485Y (en) * | 2008-09-04 | 2009-09-16 | 温州市科星电子有限公司 | Ripple factor detecting device adapted to DC power supply |
| CN202134914U (en) * | 2011-07-13 | 2012-02-01 | 山东电力集团公司泰安供电公司 | Ripple wave monitoring device for DC power supply |
-
2011
- 2011-07-13 CN CN2011101958758A patent/CN102879748A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456171Y (en) * | 2000-12-18 | 2001-10-24 | 无锡市斯达自控设备厂 | On line ripple determiner |
| US6977518B2 (en) * | 2002-11-11 | 2005-12-20 | Matsushita Electric Works, Ltd. | Electrical leak detecting apparatus |
| CN201141885Y (en) * | 2007-12-26 | 2008-10-29 | 上海市电力公司超高压输变电公司 | Ripple voltage and bus-bar voltage monitoring relay of transforming station DC system |
| CN201311485Y (en) * | 2008-09-04 | 2009-09-16 | 温州市科星电子有限公司 | Ripple factor detecting device adapted to DC power supply |
| CN202134914U (en) * | 2011-07-13 | 2012-02-01 | 山东电力集团公司泰安供电公司 | Ripple wave monitoring device for DC power supply |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422899A (en) * | 2013-09-05 | 2015-03-18 | 上海龙创节能系统股份有限公司 | Monitoring device applied to high-power direct-current power-supply system |
| CN103427485A (en) * | 2013-09-09 | 2013-12-04 | 国家电网公司 | Device used for detecting direct current power supply connected to alternating current power supply and direct current power supply ripples and used in transformer substation |
| CN103941197A (en) * | 2014-04-17 | 2014-07-23 | 苏州市华东电网电气有限公司 | Monitoring device and method for direct-current power source complete equipment ripple factor |
| CN105372501A (en) * | 2015-11-13 | 2016-03-02 | 江苏省电力公司无锡供电公司 | Online DC power ripple and battery inner resistance monitoring system |
| CN107015167A (en) * | 2016-12-30 | 2017-08-04 | 国网天津市电力公司 | A kind of Switching Power Supply ripple voltage detection method based on detection techniques |
| CN107329096A (en) * | 2017-07-25 | 2017-11-07 | 北京航天恒容电磁科技有限公司 | A kind of power supply signal collection feature extraction device based on ARM frameworks |
| CN107329096B (en) * | 2017-07-25 | 2019-09-13 | 北京航天恒容电磁科技有限公司 | A kind of power supply signal acquisition feature extraction device based on ARM framework |
| CN108957356A (en) * | 2018-05-31 | 2018-12-07 | 国网吉林省电力有限公司长春供电公司 | A kind of DC power supply detection device |
| CN111398844A (en) * | 2020-03-10 | 2020-07-10 | 深圳供电局有限公司 | Ripple peak sampling circuit and direct current system monitoring device |
| CN116169770A (en) * | 2023-03-09 | 2023-05-26 | 惠州华智新能源科技有限公司 | Bidirectional UPS photovoltaic system |
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Application publication date: 20130116 |