CN107167682A - The wave recording device of high voltage converter - Google Patents
The wave recording device of high voltage converter Download PDFInfo
- Publication number
- CN107167682A CN107167682A CN201710347159.4A CN201710347159A CN107167682A CN 107167682 A CN107167682 A CN 107167682A CN 201710347159 A CN201710347159 A CN 201710347159A CN 107167682 A CN107167682 A CN 107167682A
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- CN
- China
- Prior art keywords
- high voltage
- voltage converter
- sensor
- output
- recording device
- 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.)
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Classifications
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention discloses a kind of wave recording device of high voltage converter, the input voltage signal that recording unit is transmitted from high voltage converter collection voltages sensor one, the input current signal that current sensor one is transmitted, the output voltage signal that voltage sensor two is transmitted, the output current signal that current sensor two is transmitted, and the frequency converter status signal that high voltage converter communication interface is transmitted.The present apparatus is used for monitoring the running situation of high voltage converter, and the Wave data of each key point when frequency converter breaks down or shut down is easy to the reason for post analysis frequency converter breaks down or shut down without reason.
Description
Technical field
The present invention relates to a kind of high-voltage frequency converter technology field, more particularly to frequency converter input and output voltage and electric current and
The record and memory technology of frequency converter state parameter etc..
Background technology
It is well known that the failure process of power system is more short better, fault time is shorter, and the damaged condition to equipment is got over
It is small, it is more favourable to the safe and stable operation of power network.For this reason, it may be necessary to understand before failure and overall process during failure, judge accident
Matter, wherein most effective, most straightforward approach is quickly to understand fault waveform figure to understand the overall process of failure generation.Understand event
Electric current, voltage magnitude and phase during barrier, nature of trouble, the duration of failure, and protection, the actuation time of breaker
Etc. information.
It is cost-effective in order to reduce pollution with developing rapidly for Power Electronic Technique, there is higher and higher want to energy-conservation
Ask, industrial or agricultural power domain, high voltage frequency converter is widely used.Because general high voltage frequency converter is without recording work(
Can, it is impossible to analyze the startup of high voltage frequency converter in detail, exit, the process of failure can not be provided correctly to processing afterwards
Foundation.
The content of the invention
The problem of present invention exists for above-mentioned prior art makes improvements, i.e., the technical problem to be solved in the present invention is to use
To monitor the running situation of high voltage converter, the startup of high voltage converter is analyzed in detail, is exited, the process of failure.
In order to solve the above technical problems, needing to provide the waveform number of each key point when frequency converter breaks down or shut down
According to the correct foundation of processing offer afterwards.A kind of wave recording device of high voltage converter of the present invention, including recording unit, use
Family breaker, bypass breaker, service entrance switch, outlet switch, voltage sensor one, current sensor one, voltage sensor two,
Current sensor two and communication interface.High voltage bus power supply connects through user's breaker to service entrance switch, service entrance switch output
High voltage converter is sent to after voltage sensor one, current sensor one, high voltage converter output connects voltage sensor two, electric current and passed
Outlet switch is connected to after sensor two, outlet switch output connects load.The output of user's breaker also connects bypass breaker all the way, other
Circuit breaker output is also connected to load.Wave recording device records the defeated of high voltage converter in the way of every millisecond records multiple sampled points
Enter the data such as electric current, input voltage, output voltage, output current, output frequency, operation information, fault message, current time.
The status signal transmitted for the above-mentioned communication interface of high voltage converter, can be shown by communication mode to high-pressure frequency-conversion
The equipment such as screen, electric power monitoring system and notebook computer uploads operation and recorder data, and record when high voltage converter is thrown, cut with
Waveform during failure.
As a further improvement on the present invention, memory can also be set inside recording unit, external connection of storage card is set, or
Person passes through USB port extension storage device.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the wave recording device principle schematic of high voltage converter.
Embodiment
Referring to Fig. 1, the input voltage signal U1 that the collection voltages sensor 1 of recording unit 1 is transmitted, current sensor one
The 14 input current signal I1 transmitted, the output voltage signal U2 that voltage sensor 2 16 is transmitted, current sensor 2 15 is transmitted
Output current signal I2, and the frequency converter status signal that high voltage converter communication interface 19 is transmitted.
The wave recording device of this high voltage converter is to the voltage, electric current, frequency of the inlet-outlet line of high voltage converter with every 20 milliseconds
The sampling of 64 sampling points is carried out, the sample of 100 cycles is preserved with the principle of first in first out, when meeting following condition：Device is put into
During operation, device it is out of service when, plant failure when, device to test when（Meet some test needs）, locking device throwing immediately
Involve the following waveform of rear 60 cycles before when entering and exiting and during plant failure 40 week:Current waveform, voltage waveforms, frequency
Curve.
The wave recording device of each high voltage converter can record 20 recordings of three of the above waveform, be stored up with first in first out
Deposit.Following operation conditions can be analyzed according to waveform stored above:Electric current and voltge surge amount during feeding device, device for excising
When electric current and voltge surge amount, device puts into and when exiting and during plant failure, passes through recorded voltage and current waveform, can
Analysis circuit each harmonic content.Recorder data and waveform can recall viewing, root in the wave recording device display screen of high voltage converter
Accident analysis is can help to according to current waveform during failure, voltage waveforms, harmonic component, frequency curve.
The present apparatus has communication function：Its Ethernet interface, and PROFBUS mouthfuls or MODBUS and electric power monitoring system can be passed through
With the equipment communication such as notebook computer, in addition to high voltage converter real-time running data is uploaded, it can also upload recorder data to verify
High voltage converter is thrown, operational factor waveform when cutting, be convenient for accident prediction and analysis and handling failure is used.
During the startup of recording unit record high voltage converter, stop when, acceleration and deceleration when, load change when, the when of breaking down
Input-output wave shape, also current time frequency converter input and output Current Voltage and frequency converter shape can be recorded according to user instruction
State.
The above-mentioned simple circuit structure of use of the present invention realizes at 2 points;Assist failure judgement reason and formulate at failure
Reason scheme, any equivalent transformation based on the present invention, belongs to protection scope of the present invention.
Claims (4)
1. a kind of wave recording device of high voltage converter, by recording unit, user's breaker, bypass breaker, service entrance switch, outlet
Switch, voltage sensor one, current sensor one, voltage sensor two, current sensor two and communication interface composition, its feature
It is：High voltage bus power supply connects voltage sensor one and electric current through user's breaker to service entrance switch, service entrance switch output
High voltage converter is sent to after sensor one, high voltage converter output is connected to outlet after connecing voltage sensor two, current sensor two
Switch, outlet switch output connects load.
2. the wave recording device of the high voltage converter according to claims 1, it is characterised in that：User's breaker output
Bypass breaker is also connect all the way, and bypass breaker output is also connected to load.
3. the wave recording device of the high voltage converter according to claims 1, it is characterised in that：The high voltage converter has
Communication interface.
4. the wave recording device of the high voltage converter according to claims 1, it is characterised in that：Set inside the recording unit
Be equipped with memory, can also external connection of storage card, or pass through USB port extension storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347159.4A CN107167682A (en) | 2017-05-17 | 2017-05-17 | The wave recording device of high voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347159.4A CN107167682A (en) | 2017-05-17 | 2017-05-17 | The wave recording device of high voltage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167682A true CN107167682A (en) | 2017-09-15 |
Family
ID=59816342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710347159.4A Withdrawn CN107167682A (en) | 2017-05-17 | 2017-05-17 | The wave recording device of high voltage converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167682A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384597A (en) * | 2002-06-07 | 2002-12-11 | 清华大学 | Medium and high voltage frequency converter monitoring method and system based on state self-adaption |
| CN102955065A (en) * | 2012-11-06 | 2013-03-06 | 上海致维电气有限公司 | Oscilloscope and reactive power compensation system |
| CN103197184A (en) * | 2013-04-03 | 2013-07-10 | 河海大学 | Fault wave recording device with impact load considered |
| CN204758710U (en) * | 2015-05-08 | 2015-11-11 | 国家电网公司 | Low pressure auxiliary engine converter low voltage ride through detecting system of thermal power plant |
| CN105259437A (en) * | 2015-10-14 | 2016-01-20 | 株洲变流技术国家工程研究中心有限公司 | Method for achieving fault analysis of high-voltage frequency converter |
| CN106597156A (en) * | 2016-12-12 | 2017-04-26 | 中国石油天然气集团公司 | Electric submersible pump load fault determination method and device, and electric submersible pump paperless recorder |
| CN206740942U (en) * | 2017-05-17 | 2017-12-12 | 希望森兰科技股份有限公司 | The wave recording device of high voltage converter |
-
2017
- 2017-05-17 CN CN201710347159.4A patent/CN107167682A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384597A (en) * | 2002-06-07 | 2002-12-11 | 清华大学 | Medium and high voltage frequency converter monitoring method and system based on state self-adaption |
| CN102955065A (en) * | 2012-11-06 | 2013-03-06 | 上海致维电气有限公司 | Oscilloscope and reactive power compensation system |
| CN103197184A (en) * | 2013-04-03 | 2013-07-10 | 河海大学 | Fault wave recording device with impact load considered |
| CN204758710U (en) * | 2015-05-08 | 2015-11-11 | 国家电网公司 | Low pressure auxiliary engine converter low voltage ride through detecting system of thermal power plant |
| CN105259437A (en) * | 2015-10-14 | 2016-01-20 | 株洲变流技术国家工程研究中心有限公司 | Method for achieving fault analysis of high-voltage frequency converter |
| CN106597156A (en) * | 2016-12-12 | 2017-04-26 | 中国石油天然气集团公司 | Electric submersible pump load fault determination method and device, and electric submersible pump paperless recorder |
| CN206740942U (en) * | 2017-05-17 | 2017-12-12 | 希望森兰科技股份有限公司 | The wave recording device of high voltage converter |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170915 |
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| WW01 | Invention patent application withdrawn after publication |