CN205861810U - External power grid synthetical collection device - Google Patents
External power grid synthetical collection device Download PDFInfo
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- CN205861810U CN205861810U CN201620862291.XU CN201620862291U CN205861810U CN 205861810 U CN205861810 U CN 205861810U CN 201620862291 U CN201620862291 U CN 201620862291U CN 205861810 U CN205861810 U CN 205861810U
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Abstract
This utility model embodiment provides external power grid synthetical collection device.External power grid synthetical collection device of the present utility model includes the first Open Type Electric Current Mutual Inductor, first voltage transformer, second Open Type Electric Current Mutual Inductor, second voltage transformer, signal conditioning circuit, analog digital conversion acquisition chip and processor, described first Open Type Electric Current Mutual Inductor, described first voltage transformer, described second Open Type Electric Current Mutual Inductor and described second voltage transformer electrically connect with described signal conditioning circuit respectively, described analog digital conversion acquisition chip is connected with described signal conditioning circuit and described processor respectively, described processor is also associated with Ethernet interface.Use Ethernet TCP/IP communication modes, it is possible to increase message transmission rate and reliability；In addition to can gathering basic electric parameter, also can calculate multiple harmonic voltage, current data；There is program on-line upgrading function, collection data and history Wave data can be directly viewable also by browser.
Description
Technical field
This utility model relates to power quality analysis field, in particular to a kind of external power grid synthetical collection device.
Background technology
Along with the large area of developing rapidly of railway cause, especially high-speed railway opens operation, promoting national economy
While fast development, also the stable operation to railway signals equipment is had higher requirement.The signalling arrangement at high ferro station is many
Number is the precision electronic device controlled based on computer, microprocessor, the highest to the sensitivity of power supply quality, so to electric energy matter
Amount is had higher requirement.The data resolution of current railway signal external power grid monitoring means is relatively low, it is impossible to meet electricity business
The section actual demand to the quality of power supply.Some power quality analyzer devices are then due to self design defect, real to high-resolution
Time data can not longer-term storage, and communication modes many employings RS485/232 communication, CAN communication, because of RS485/232, CAN
Bus communication mode message transmission rate is relatively low, error in data disposal ability is the strongest, it is impossible to meet high real-time, high-resolution number
Demand according to transmission.
Therefore, in order to improve the quality of monitor of the railway signal, meet the electricity business section actual need for the management of power supply joint portion
Want, develop a kind of advanced in performance, online electric energy comprehensive quality analytical tool of diverse in function, to the operation ensureing railway locomotive
Safety is necessary.
Utility model content
In view of this, the purpose of this utility model embodiment is to provide a kind of external power grid synthetical collection device, existing to improve
Have that technical data transfer rate is relatively low, error in data disposal ability is the strongest, it is impossible to meet high real-time, high-resolution data transmission
The problem of demand.
First aspect, a kind of external power grid synthetical collection device that this utility model embodiment provides, for carrying out external power grid
Signals collecting, described external power grid includes I road circuit and II road circuit, including: the first Open Type Electric Current Mutual Inductor, the first voltage are mutual
Sensor, the second Open Type Electric Current Mutual Inductor, the second voltage transformer, signal conditioning circuit, analog digital conversion acquisition chip and place
Reason device, described first Open Type Electric Current Mutual Inductor, described first voltage transformer, described second Open Type Electric Current Mutual Inductor and
Described second voltage transformer electrically connects with described signal conditioning circuit respectively, described analog digital conversion acquisition chip respectively with institute
Stating signal conditioning circuit and described processor connects, described processor is also associated with Ethernet interface；
Described first Open Type Electric Current Mutual Inductor and the second Open Type Electric Current Mutual Inductor are respectively used to external power grid I road circuit
Carry out isolation conversion with the current signal of II road circuit, respectively obtain after conversion II road electric current letter after I road current signal and conversion
Number, described first voltage transformer and described second voltage transformer are respectively used to external power grid I road circuit and II road circuit
Voltage signal carries out isolation conversion, respectively obtains after conversion II road voltage signal after I road voltage signal and conversion, and described signal is adjusted
Reason circuit is for believing I road voltage after II road current signal, described conversion after I road current signal, described conversion after described conversion
Number and described conversion after II road voltage signal be adjusted being adjusted rear I road current signal, adjust after II road current signal,
I road voltage signal and II road voltage signal after adjusting after adjustment, described analog digital conversion acquisition chip is for by I after described adjustment
II road voltage after I road voltage signal and described adjustment after II road current signal, described adjustment after road current signal, described adjustment
Signal is converted into digital signal, and described processor is used for reading described digital signal, and carries out being calculated data result, will
Described data result transmits to the machine of standing through described Ethernet interface.
In conjunction with first aspect, this utility model embodiment additionally provides the first possible embodiment of first aspect, its
In, it is provided with isolation circuit between described processor and described Ethernet interface.
In conjunction with first aspect, this utility model embodiment additionally provides the possible embodiment of the second of first aspect, its
In, also including that memorizer, described memorizer electrically connect with described processor, described memorizer is used for storing described data result.
In conjunction with first aspect, this utility model embodiment additionally provides the third possible embodiment of first aspect, its
In, described memorizer is FLASH storage chip.
In conjunction with first aspect, this utility model embodiment additionally provides the 4th kind of possible embodiment of first aspect, its
In, also including that display unit, described display unit electrically connect with described processor, described display unit is used for showing this external power grid
The ruuning situation of synthetical collection device and state.
In conjunction with the 4th kind of first aspect may embodiment, this utility model embodiment additionally provides the of first aspect
Five kinds of possible embodiments, wherein, described display unit is LED light.
In conjunction with first aspect, this utility model embodiment additionally provides the 6th kind of possible embodiment of first aspect, its
In, described processor is ARM chip.
In conjunction with first aspect, this utility model embodiment additionally provides the 7th kind of possible embodiment of first aspect, its
In, also include that the first protection circuit, described first protection circuit are connected with described first voltage transformer, are used for protecting external power grid
Do not affected by external power grid synthetical collection device internal short circuits.
In conjunction with first aspect, this utility model embodiment additionally provides the 8th kind of possible embodiment of first aspect, its
In, also include that the second protection circuit, described second protection circuit are connected with described second voltage transformer, are used for protecting external power grid
Do not affected by external power grid synthetical collection device internal short circuits.
In conjunction with first aspect, this utility model embodiment additionally provides the 9th kind of possible embodiment of first aspect, its
In, also include that power supply, described power supply are connected with described processor, for providing electric energy for described external power grid synthetical collection device.
Compared with prior art, external power grid synthetical collection device of the present utility model uses Ethernet TCP/IP communication modes,
Message transmission rate and reliability can be improved；In addition to can gathering basic electric parameter, also can calculate multiple harmonic voltage, electric current
Data；There is program on-line upgrading function, collection data and history Wave data can be directly viewable also by browser.
For making above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other relevant accompanying drawings according to these accompanying drawings.
The block diagram of the external power grid synthetical collection device that Fig. 1 provides for this utility model preferred embodiment.
The workflow diagram of the external power grid synthetical collection device that Fig. 2 provides for this utility model preferred embodiment.
Main element symbol description
External power grid synthetical collection device 100；First Open Type Electric Current Mutual Inductor 101；First voltage transformer 102；Signal is adjusted
Reason circuit 103；Analog digital conversion acquisition chip 104；Processor 105；Ethernet interface 106；Memorizer 107；Second open-type electricity
Current transformer 108；Second voltage transformer 109.
Detailed description of the invention
Below in conjunction with accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole realities
Execute example.Generally can be next with various different configurations with the assembly of this utility model embodiment illustrated described in accompanying drawing herein
Arrange and design.Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit
Claimed scope of the present utility model, but it is merely representative of selected embodiment of the present utility model.Based on this utility model
Embodiment, the every other embodiment that those skilled in the art are obtained on the premise of not making creative work, all
Belong to the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.Meanwhile, new in this practicality
In the description of type, term " first ", " second " etc. are only used for distinguishing and describe, and it is not intended that indicate or imply relatively important
Property.
Refer to Fig. 1, be the square frame signal of the external power grid synthetical collection device 100 that this utility model preferred embodiment provides
Figure.External power grid synthetical collection device 100 for carrying out signals collecting to external power grid, and described external power grid includes I road circuit and II road electricity
Road, the external power grid synthetical collection device 100 of this utility model embodiment includes first Open Type Electric Current Mutual Inductor the 101, first voltage
Transformer the 102, second Open Type Electric Current Mutual Inductor the 108, second voltage transformer 109, signal conditioning circuit 103, analog digital conversion
(Analog-to-Digital Converter, ADC) acquisition chip 104 and processor 105, described first open-type electric current
Transformer 101, described first voltage transformer 102, described second Open Type Electric Current Mutual Inductor 108 and described second voltage are mutual
Sensor 109 all electrically connects with described signal conditioning circuit 103, and described analog digital conversion acquisition chip 104 is adjusted with described signal respectively
Reason circuit 103 and described processor 105 connect.
Described first Open Type Electric Current Mutual Inductor 101 is changed for the current signal of external power grid I road circuit carries out isolation,
I road current signal after being changed.Owing to utilizing mutual inductance principle to gather current signal, the circuit of external power grid will not be to the electricity gathered
Stream signal produces impact.In like manner, described second Open Type Electric Current Mutual Inductor 108 is for entering external power grid II road circuit current signal
Row isolation conversion, II road current signal after being changed.
Described first voltage transformer 102, for the voltage signal of external power grid I road circuit carries out isolation conversion, is turned
Change rear I road voltage signal.Described second voltage transformer 109 turns for the voltage signal of external power grid II road circuit carries out isolation
Change, II road voltage signal after being changed.The first protection electricity it is additionally provided with between the first voltage transformer 102 and external power grid
Road, is additionally provided with the second protection circuit, described first protection circuit and described between the second voltage transformer 109 and external power grid
Two protection circuits are for protecting external power grid not affected, in the present embodiment by external power grid synthetical collection device 100 internal short circuits
Protection circuit use resettable fuse and quick fuse electric fuse, the electricity within external power grid synthetical collection device 100 can be prevented
External power grid is impacted by short out road.
Described signal conditioning circuit 103 is for believing II road electric current after I road current signal, described conversion after described conversion
Number, after I road voltage signal and described conversion, II road voltage signal is adjusted being adjusted rear I road electric current letter after described conversion
Number, adjust after II road current signal, adjust after I road voltage signal and adjust after II road voltage signal.
Described analog digital conversion acquisition chip 104 is for by II road electric current letter after I road current signal, adjustment after described adjustment
Number, adjust after I road voltage signal and adjust after II road voltage signal be converted into digital signal.
Described processor 105 is for reading the signal that described analog digital conversion acquisition chip 104 gathers, by described digital signal
Carry out being calculated data result, and described data result is transmitted to station machine through described Ethernet interface 106.Described processor
105 are additionally operable to calculate harmonic voltage, harmonic current data, and by described harmonic voltage, harmonic current data by described ether
Network interface 106 sends to described station machine.
Processor 105 is probably a kind of IC chip, has the disposal ability of signal.Above-mentioned processor can be
General processor, including central processing unit (Central Processing Unit is called for short CPU), network processing unit (Network
Processor, is called for short NP) etc.；Can also is that digital signal processor (DSP), special IC (ASIC), ready-made able to programme
Gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components.This reality
Executing in example, described processor 105 is preferably ARM chip.
Described Ethernet interface 106 uses the integrated chip of built-in TCP or IP agreement, uses Ethernet TCP or IP communication
Mode, it is possible to increase message transmission rate and reliability.
It is provided with isolation circuit, due to depositing of isolation circuit between described processor 105 and described Ethernet interface 106
, the positive normal open of the properly functioning LAN interior with station of external power grid will not be affected because of external power grid synthetical collection device 100 internal fault
News.
Described processor 105 is also associated with memorizer 107, and described memorizer 107 is used for storing described processor 105 and calculates
Data result.Wherein, memorizer 107 may be, but not limited to, random access memory (Random Access Memory,
RAM), read only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Preferably, described memorizer is FLASH storage chip.
Described processor 105 can also connect display unit, and described display unit is used for showing this external power grid synthetical collection
The ruuning situation of device 100 and state.Preferably, described display unit is LED light.
External power grid synthetical collection device 100 also includes power supply, and described power supply is for carrying for described external power grid synthetical collection device 100
For electric energy.
Refer to Fig. 2, be the workflow of the external power grid synthetical collection device 100 that this utility model preferred embodiment provides
Figure.Specific works flow process shown in Fig. 2 will be described in detail below.Comprise the following steps:
Step S101, it may be judged whether need online upgrading.After described external power grid synthetical collection device 100 is opened, described
Processor 105 first carries out step S101.When needs online upgrading, upgraded from Network Capture by described Ethernet interface 106
Program, and perform step S102, if need not upgrade, directly perform step S102.
Step S102, reads the data that analog digital conversion acquisition chip 104 gathers.In step S102, can be by processor 105
Data are read from described analog digital conversion acquisition chip 104.
Step S103, calculates three-phase voltage, electric current, active power, tangible power, frequency, power factor (PF) etc..
Step S104, carries out FFT computing to sampled data.
Step S105, calculates voltage, the first-harmonic of electric current and harmonic wave.
Step S106, calculates three-phase phase angle and line voltage.
Step S107, calculates angle between two-way external power grid.
Step S103 can not perform in the order described above to step S107, in other detailed description of the invention, and step
S103 can change to the order of step S107.
Step S108, it may be judged whether incorrect order.Judge whether incorrect order occurs between three-phase voltage according to three-phase voltage phase angle
Situation, if there being incorrect order, processor 105 then records switching value and shows in LED light.
Step S109, it may be judged whether hit occurs.Judge whether the voltage and current gathered hit occurs, if it occur that wink
Disconnected, then record hit voltage, current curve, on-off state and time of origin.
Step S110, it may be judged whether sudden change occurs.Judge whether the voltage and current gathered sudden change occurs if it occur that dash forward
Become, then record mutation voltage, current curve, on-off state and time of origin.
Step S111, it is judged that whether data result changes, if it occur that change, then uploads change number by Ethernet
According to, without changing, then upload data result to station machine by Ethernet every 5s timing, and by described step S108 extremely
Data in step S110 record are uploaded to station machine equally.
External power grid synthetical collection device 100 directly transmits employing Ethernet mode with station machine, when external power grid synthetical collection device 100
When doing client, data transfer mode uses timing upload and change the mode combined of uploading, and i.e. reduces station machine data and processes
Amount ensures again uploading in time of delta data.When external power grid synthetical collection device 100 does server end, can be direct by browser
Check current sample values, real-time waveform and and change curve data etc..
In sum, the external power grid synthetical collection device that this utility model provides uses Ethernet TCP/IP communication modes, energy
Enough improve message transmission rate and reliability；In addition to can gathering basic electric parameter, also can calculate multiple harmonic voltage, electric current number
According to；There is program on-line upgrading function, collection data and history Wave data can be directly viewable also by browser.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it is also possible to pass through
Other mode realizes.Device embodiment described above is only schematically, such as, and the flow chart in accompanying drawing and block diagram
Show the system frame in the cards of the device according to multiple embodiments of the present utility model, method and computer program product
Structure, function and operation.In this, each square frame in flow chart or block diagram can represent a module, program segment or code
A part, the part of described module, program segment or code comprises one or more logic function for realizing regulation
Executable instruction.It should also be noted that at some as in the implementation replaced, the function marked in square frame can also be with not
The order being same as being marked in accompanying drawing occurs.Such as, two continuous print square frames can essentially perform substantially in parallel, and they have
Time can also perform in the opposite order, this is depending on involved function.It is also noted that in block diagram and/or flow chart
Each square frame and block diagram and/or flow chart in the combination of square frame, can be with performing the function of regulation or the special of action
Hardware based system realize, or can realize with the combination of specialized hardware with computer instruction.
It addition, each functional module in each embodiment of this utility model can integrate formed one independent
Part, it is also possible to be modules individualism, it is also possible to two or more modules are integrated to form an independent part.
If described function is using the form realization of software function module and as independent production marketing or use, permissible
It is stored in a computer read/write memory medium.Based on such understanding, the technical solution of the utility model substantially or
Person says that the part of part or this technical scheme contributing prior art can embody with the form of software product,
This computer software product is stored in a storage medium, including some instructions with so that a computer equipment is (permissible
It is personal computer, server, or the network equipment etc.) perform the whole or portion of method described in each embodiment of this utility model
Step by step.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), with
Various Jie that can store program code such as machine access memorizer (RAM, Random Access Memory), magnetic disc or CD
Matter.It should be noted that in this article, the relational terms of such as first and second or the like be used merely to an entity or
Operation separates with another entity or operating space, and exists any between not necessarily requiring or imply these entities or operating
The relation of this reality or order.And, term " includes ", " comprising " or its any other variant are intended to non-exclusive
Comprising of property, so that include that the process of a series of key element, method, article or equipment not only include those key elements, and
Also include other key elements being not expressly set out, or also include intrinsic for this process, method, article or equipment
Key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that described in including
The process of key element, method, article or equipment there is also other identical element.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.It should be noted that
Arrive: similar label and letter represent similar terms in following accompanying drawing, therefore, are determined in the most a certain Xiang Yi accompanying drawing
Justice, then need not define it further and explain in accompanying drawing subsequently.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in change
Or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power
The protection domain that profit requires is as the criterion.
Claims (10)
1. an external power grid synthetical collection device, for external power grid is carried out signals collecting, described external power grid includes I road circuit and II
Road circuit, it is characterised in that including: the first Open Type Electric Current Mutual Inductor, the first voltage transformer, the second open-type Current Mutual Inductance
Device, the second voltage transformer, signal conditioning circuit, analog digital conversion acquisition chip and processor, described first open-type electric current
Transformer, described first voltage transformer, described second Open Type Electric Current Mutual Inductor and described second voltage transformer are divided equally
Do not electrically connect with described signal conditioning circuit, described analog digital conversion acquisition chip respectively with described signal conditioning circuit and described place
Reason device connects, and described processor is also associated with Ethernet interface；
Described first Open Type Electric Current Mutual Inductor and the second Open Type Electric Current Mutual Inductor are respectively used to external power grid I road circuit and II
The current signal of road circuit carries out isolation conversion, respectively obtains after conversion II road current signal, institute after I road current signal and conversion
State the first voltage transformer and described second voltage transformer is respectively used to believe the voltage of external power grid I road circuit and II road circuit
Number carry out isolation conversion, respectively obtain after conversion II road voltage signal, described signal conditioning circuit after I road voltage signal and conversion
For by I road voltage signal after II road current signal, described conversion after I road current signal, described conversion after described conversion and
After described conversion II road voltage signal be adjusted being adjusted rear I road current signal, adjust after II road current signal, adjust after
II road voltage signal after I road voltage signal and adjustment, described analog digital conversion acquisition chip is for by I road electric current after described adjustment
After signal, described adjustment, after II road current signal, described adjustment, after I road voltage signal and described adjustment, II road voltage signal is equal
Being converted to digital signal, described processor is used for reading described digital signal, and carries out being calculated data result, by described number
Transmit to the machine of standing through described Ethernet interface according to result.
External power grid synthetical collection device the most according to claim 1, it is characterised in that described processor connects with described Ethernet
Isolation circuit it is provided with between Kou.
External power grid synthetical collection device the most according to claim 1, it is characterised in that also include memorizer, described memorizer
Electrically connecting with described processor, described memorizer is used for storing described data result.
External power grid synthetical collection device the most according to claim 3, it is characterised in that described memorizer is that FLASH stores core
Sheet.
External power grid synthetical collection device the most according to claim 1, it is characterised in that also include display unit, described display
Unit electrically connects with described processor, and described display unit is for showing ruuning situation and the shape of this external power grid synthetical collection device
State.
External power grid synthetical collection device the most according to claim 5, it is characterised in that described display unit is LED light.
External power grid synthetical collection device the most according to claim 1, it is characterised in that described processor is ARM chip.
External power grid synthetical collection device the most according to claim 1, it is characterised in that also include the first protection circuit, described
First protection circuit is connected with described first voltage transformer, is used for protecting external power grid not by the internal electricity of external power grid synthetical collection device
The impact on short out road.
External power grid synthetical collection device the most according to claim 1, it is characterised in that also include the second protection circuit, described
Second protection circuit is connected with described second voltage transformer, is used for protecting external power grid not by the internal electricity of external power grid synthetical collection device
The impact on short out road.
External power grid synthetical collection device the most according to claim 1, it is characterised in that also include power supply, described power supply and institute
State processor to connect, for providing electric energy for described external power grid synthetical collection device.
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| CN201620862291.XU CN205861810U (en) | 2016-08-10 | 2016-08-10 | External power grid synthetical collection device |
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| CN201620862291.XU CN205861810U (en) | 2016-08-10 | 2016-08-10 | External power grid synthetical collection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459625A (en) * | 2017-09-06 | 2019-03-12 | 弗兰克公司 | Multiphase measuring device |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459625A (en) * | 2017-09-06 | 2019-03-12 | 弗兰克公司 | Multiphase measuring device |
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