CN109765428A - A kind of power distribution network synchronous phasor measuring device - Google Patents
A kind of power distribution network synchronous phasor measuring device Download PDFInfo
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- CN109765428A CN109765428A CN201910227143.9A CN201910227143A CN109765428A CN 109765428 A CN109765428 A CN 109765428A CN 201910227143 A CN201910227143 A CN 201910227143A CN 109765428 A CN109765428 A CN 109765428A
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Abstract
The invention discloses a kind of power distribution network synchronous phasor measuring devices, comprising: electric equipment is surveyed in induction, for being based on Current Mutual Inductance principle, the electric current in transmission line of electricity is converted and is exported with power form；The backup power equipment being connect with the output end that electric equipment is surveyed in induction, for being that the backup power supply in backup power equipment charges using the electric current for surveying electric equipment output is incuded；The synchronous phasor measurement equipment being connect with the output end of backup power equipment, for being the power supply of synchronous phasor measurement equipment using the electric current for incuding survey electric equipment and/or backup power supply output；The present invention surveys electric equipment as driving power using induction and obtains energy from transmission line of electricity for the power supply of power distribution network synchronous phasor measuring device, and using backup power equipment as backup power source, ensure that device operation steady in a long-term；Provide constructive thinking for distributing rationally for power distribution network synchronous phasor measuring device, for whole device miniaturization and reduce cost basis be provided.
Description
Technical field
The present invention relates to electrical engineering field, in particular to a kind of power distribution network synchronous phasor measuring device.
Background technique
Nowadays, power grid scale in various countries' is more and more huger, and the trend of bulk power grid interconnection also preliminarily forms, fixed in the whole world GPS
Under the premise of position system provides accurately time signal, power distribution network synchronous phasor measuring device (PMU) is realized to a wide range of interior
The synchronization monitoring of electric system parameters and measurement, the synchronous phasor measuring device of electric system will obtain in the near future
To universal and application.
In the prior art, often volume is larger and cost is high for power distribution network synchronous phasor measuring device, and needs independent
Configuration power supply unit is connected as whole device power supply with the power distribution network such as alternating current.Therefore, how to make power distribution network synchronized phasor
Measuring device directly can obtain energy from transmission line of electricity, guarantee itself operation steady in a long-term, survey for power distribution network synchronized phasor
Distributing rationally for amount device provides constructive thinking, for whole device miniaturization and reduce cost basis be provided, be now
Urgent problem.
Summary of the invention
The object of the present invention is to provide a kind of power distribution network synchronous phasor measuring devices, to be using the energy in transmission line of electricity
The power supply of power distribution network synchronous phasor measuring device guarantees device operation steady in a long-term.
In order to solve the above technical problems, the present invention provides a kind of power distribution network synchronous phasor measuring device, comprising:
Electric equipment is surveyed in induction, for being based on Current Mutual Inductance principle, is converted simultaneously to the electric current in transmission line of electricity with power form
Output；
The backup power equipment that the output end of electric equipment is connect is surveyed with the induction, for surveying electric equipment using the induction
The electric current of output is the backup power supply charging in the backup power equipment；
The synchronous phasor measurement equipment being connect with the output end of the backup power equipment, for surveying electricity using the induction
Equipment and/or the electric current of backup power supply output are synchronous phasor measurement equipment power supply.
Optionally, the backup power equipment, comprising: the backup power supply, Charge Management equipment and power supply management equipment；
Wherein, the output end that electric equipment is surveyed in the induction is connect by the Charge Management equipment with the backup power supply,
For charging for the backup power supply；The power supply management equipment surveys electric equipment with the backup power supply and the induction respectively
Output end connection, for controlling the power supply of the synchronous phasor measurement equipment.
Optionally, device further include: filter apparatus, the electric current for surveying electric equipment output to the induction are filtered
Wave；
Wherein, the output end that electric equipment is surveyed in the induction is connect by the filter apparatus with the backup power equipment.
Optionally, device further include: reverse-current protection equipment；
Wherein, the output end that electric equipment is surveyed in the induction is set by the reverse-current protection equipment with the backup power supply
Standby connection.
Optionally, the device further include: voltage order one conversion equipment, for surveying the voltage of electric equipment output to the induction
It is converted；
Wherein, the output end that electric equipment is surveyed in the induction is set by the voltage order one conversion equipment with the backup power supply
Standby connection.
Optionally, device further include: secondary voltage conversion equipment, the voltage for being exported to the backup power equipment
It is converted；
Wherein, the output end of the backup power equipment is surveyed by the secondary voltage conversion equipment and the synchronized phasor
Measure equipment connection.
Optionally, the device further include: protection equipment, for providing power control and over-voltage protecting function；
Wherein, protection equipment setting is between induction survey electric equipment and the backup power equipment, and described
The output end connection of electric equipment is surveyed in induction.
A kind of power distribution network synchronous phasor measuring device provided by the present invention, comprising: electric equipment is surveyed in induction, for based on electricity
Mutual inductance principle is flowed, the electric current in transmission line of electricity is converted and exported with power form；The output end for surveying electric equipment with induction is connect
Backup power equipment, for using incude survey electric equipment output electric current be backup power equipment in backup power supply charge；
The synchronous phasor measurement equipment being connect with the output end of backup power equipment, for surveying electric equipment and/or standby electricity using induction
The electric current of source output is the power supply of synchronous phasor measurement equipment；
As it can be seen that it is that power distribution network is same that the present invention surveys electric equipment as driving power to obtain energy from transmission line of electricity using induction
Phasor measuring set power supply is walked, and using backup power equipment as backup power source, ensure that device operation steady in a long-term；
Constructive thinking is provided for distributing rationally for power distribution network synchronous phasor measuring device, is the miniaturization and reduction of whole device
Cost provides basis.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural block diagram of power distribution network synchronous phasor measuring device provided by the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another kind power distribution network synchronous phasor measuring device provided by the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of structural frames of power distribution network synchronous phasor measuring device provided by the embodiment of the present invention
Figure.The apparatus may include:
Electric equipment 10 is surveyed in induction, for being based on Current Mutual Inductance principle, is converted to the electric current in transmission line of electricity with power form
And it exports；
The backup power equipment 20 connecting with the output end that electric equipment 10 is surveyed in induction is exported for surveying electric equipment using induction
Electric current be backup power equipment in backup power supply charging；
The synchronous phasor measurement equipment 30 being connect with the output end of backup power equipment 20, for surveying electric equipment using induction
10 and/or backup power supply output electric current be synchronous phasor measurement equipment 30 power.
It is understood that the purpose of the present embodiment can be the induction survey electric equipment using setting on the transmission line
10, it is that power distribution network synchronous phasor measuring device is powered that electric energy is obtained from transmission line of electricity, makes power distribution network synchronous phasor measurement
Device is not required to additionally power supply unit be utilized to connect with the power distribution network of such as alternating current, to make setting for power distribution network synchronous phasor measuring device
Seated position is more flexible, can more be widely applied setting；And the setting for passing through backup power equipment 20, can transmit electricity
Route occurs to have a power failure or induction survey electric equipment 10 breaks down when leading to not obtain electric energy, is guaranteed using backup power equipment 20
The normal operation of whole device, realization device operation steady in a long-term.
Specifically, the specific device type of electric equipment 10 is surveyed to induction in this present embodiment, it can be by designer's root
Scene and user demand self-setting are factually used, it such as can be for by the sense shown in Fig. 2 being arranged on overhead line (transmission line of electricity)
The equipment for answering magnet ring and corresponding coil to form passes through conversion as long as induction surveys electric equipment 10 and can be based on Current Mutual Inductance principle
Mode, the electric current in transmission line of electricity is expressed in the form of power, and visual result is exported, the present embodiment to this not
Do any restrictions.Corresponding, in order to further realize the miniaturization of power distribution network synchronous phasor measuring device, electric equipment 10 is surveyed in induction
Quality standard can be for lower than 1500 grams.
It should be noted that backup power supply can be set in backup power equipment 20 in the present embodiment, to incude
Survey electric equipment 10 can not be obtained from transmission line of electricity electric energy for power distribution network synchronous phasor measuring device be powered when, utilize standby
Power supply is that power distribution network synchronous phasor measuring device is powered, and guarantees the normal operation of power distribution network synchronous phasor measuring device.Tool
Body, it, can be by designer's self-setting, as shown in Fig. 2, standby is electric for the specific device type of backup power equipment 20
Source device 20 may include backup power supply (lithium battery), Charge Management equipment and power supply management equipment；Wherein, electric equipment is surveyed in induction
10 output end is connect by Charge Management equipment with backup power supply, for charging for backup power supply；Power supply management equipment difference
The output end for surveying electric equipment 10 with backup power supply and induction is connect, for controlling the confession of synchronous phasor measurement equipment 30 (load)
Electricity, i.e. control induction survey the electric current of electric equipment 10 and/or backup power supply output as the power supply of synchronous phasor measurement equipment 30.This implementation
Example does not do any restrictions to this.
It is corresponding, as shown in Fig. 2, the output end of Charge Management equipment can also be connect with power supply management equipment, make to charge
Management equipment can be while being that backup power supply charges using the electric current for surveying the output of electric equipment 10 is incuded, and power supply management equipment can
To be powered using the electric current exported by Charge Management equipment as synchronous phasor measurement equipment 30.Specifically, for backup power supply
The concrete type of backup power supply in equipment 20 selects, and such as can be able to be lithium battery by designer's self-setting, can also be with
For other kinds of energy-storage battery, the present embodiment does not do any restrictions to this.
Wherein, the synchronous phasor measurement equipment 30 in the present embodiment can be the equipment for realizing synchronous phasor measurement,
Specific setting for synchronous phasor measurement equipment 30 can such as be used and the prior art by designer's self-setting
The same or similar equipment of the equipment for realizing synchronous phasor measurement in middle power distribution network synchronous phasor measuring device, this implementation
Example does not do any restrictions to this.
Corresponding, the synchronous phasor measurement equipment 30 in the present embodiment is also based on the accurate of GPS geo-location system
Time signal, the indices of real-time synchronization monitoring measurement electric system, and whole node synchronous acquisitions may be implemented.
Specifically, power distribution network synchronous phasor measuring device provided by the present embodiment may be implemented to set synchronous phasor measurement
Electric equipment 10 and/or backup power equipment 20 are surveyed in the control function and detection function of standby 30 power supply, i.e., the induction in the present embodiment
In above-mentioned control function and detection function may be implemented such as the processor of single-chip microcontroller.As powered in backup power equipment 20 in Fig. 2
Such as protection and control, voltage and reactive power optimization, micro electric network coordination, power system recovery may be implemented in processor in management equipment
Control function, and realize such as Power Quality Detection, isolated island detection, state estimation, voltage stability detection, fault location and divide
The detection function of analysis etc. improves user experience to guarantee the use of the safety and stability of power distribution network synchronous phasor measuring device.Also
It is to say, the processor that the induction in the present embodiment is surveyed in electric equipment 10 and/or backup power equipment 20 can use current sense
The cooperative cooperating of device and voltage sensor realizes above-mentioned function, achievees the purpose that interference free performance and low cost and ensure that survey
Accuracy of measurement is also provided with corresponding current sensor and electricity in the power distribution network synchronous phasor measuring device that is, in the present embodiment
Pressure sensor.
Further, power distribution network synchronous phasor measuring device provided by the present embodiment can also include filter apparatus, use
It is filtered in surveying the electric current that electric equipment 10 exports to induction；Wherein, the output end that electric equipment 10 is surveyed in induction passes through filter apparatus
It is connect with backup power equipment 20.
Further, power distribution network synchronous phasor measuring device provided by the present embodiment can also include reverse-current protection
Equipment surveys electric equipment 10 for avoiding electric current from being reversely flowed into induction；Wherein, the output end that electric equipment 10 is surveyed in induction passes through reversed
Current protecting equipment is connect with backup power equipment 20.
Further, power distribution network synchronous phasor measuring device provided by the present embodiment can also include that voltage order one is converted
Equipment is converted for surveying the voltage that electric equipment 10 exports to induction, such as induction can be surveyed the voltage that electric equipment 10 exports
Be converted to 5V voltage；Wherein, the output end that electric equipment 10 is surveyed in induction passes through voltage order one conversion equipment and backup power equipment 20
Connection.
Further, power distribution network synchronous phasor measuring device provided by the present embodiment can also include that secondary voltage is converted
Equipment, for converting to the voltage that backup power equipment exports, the 5V voltage for such as converting voltage order one conversion equipment turns
Being changed to 3.3V voltage is that subsequent load (synchronous phasor measurement equipment 30) provides power supply；Wherein, backup power equipment 20 is defeated
Outlet is connect by secondary voltage conversion equipment with synchronous phasor measurement equipment 30.
Further, power distribution network synchronous phasor measuring device provided by the present embodiment can also include protection equipment, use
In offer power control and over-voltage protecting function；Wherein, the setting of protection equipment surveys electric equipment 10 and backup power equipment in induction
Between 20, the output end for surveying electric equipment 10 with induction is connect, i.e. protection equipment two outputs with induction survey electric equipment 10 respectively
Two connections that end and backup power equipment 20 connect.
It is corresponding, as shown in Fig. 2, what the reaction magnetic ring and corresponding coil that are arranged on power transmission line (transmission line of electricity) formed
Two output ends that electric equipment 10 is surveyed in induction can pass sequentially through reverse-current protection equipment, filter apparatus, voltage order one conversion
Equipment in backup power equipment 20 Charge Management equipment and power supply management equipment connect, protection equipment respectively with induction survey electricity
Two connections that two output ends of equipment 10 are connected with reverse-current protection equipment, the output end of power supply management equipment with
Load (synchronous phasor measurement equipment 30) connection.
Specifically, power distribution network synchronous phasor measuring device as shown in Figure 2, surveys the reaction magnetic ring in electric equipment 10 in induction
After being mounted on the overhead line (power transmission line) for needing to measure, protection equipment enters working condition, and detection monitoring power and voltage are
It is no in safe range, prevent from damaging device when curent change is larger；Once over-voltage condition occurs, filter apparatus can be according to
Pre-set standard is filtered；After overprotection equipment and filter apparatus, (such as DC/DC decompression of voltage order one conversion equipment
Converter) working condition can be entered, convert and obtain 5V voltage being powered into backup power equipment 20；Since power distribution network is negative
Lotus fluctuation is larger, and the electric current of transmission line of electricity is lower sometimes, at this time the backup power supply (such as lithium battery) in backup power equipment 20
It will play a role, and break down when leading to not obtain electric energy in transmission line of electricity generation power failure or induction survey electric equipment 10,
Backup power supply in backup power equipment 20 can also export electric current, to guarantee the normal operation of whole device；Second level electricity later
It presses conversion equipment (such as DC/DC buck converter) that working condition can be entered, converts and obtain 3.3V voltage as subsequent load
(synchronous phasor measurement equipment 30) provides power supply；After transmission line of electricity restores or incudes survey 10 troubleshooting of electric equipment, level-one electricity
The 5V voltage that pressure conversion equipment can export charges to backup power supply under the action of Charge Management equipment.
In the present embodiment, the embodiment of the present invention is surveyed electric equipment 10 as driving power using induction and is obtained from transmission line of electricity
Energy is the power supply of power distribution network synchronous phasor measuring device, and using backup power equipment 20 as backup power source, ensure that dress
Set operation steady in a long-term；Constructive thinking is provided for distributing rationally for power distribution network synchronous phasor measuring device, is entire
The miniaturization of device and reduce cost provide basis.
A kind of power distribution network synchronous phasor measuring device provided by the present invention is described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (7)
1. a kind of power distribution network synchronous phasor measuring device characterized by comprising
Electric equipment is surveyed in induction, for being based on Current Mutual Inductance principle, the electric current in transmission line of electricity is converted and is exported with power form；
The backup power equipment that the output end of electric equipment is connect is surveyed with the induction, is exported for surveying electric equipment using the induction
Electric current be the backup power equipment in backup power supply charging；
The synchronous phasor measurement equipment being connect with the output end of the backup power equipment, for surveying electric equipment using the induction
And/or the electric current of the backup power supply output is synchronous phasor measurement equipment power supply.
2. power distribution network synchronous phasor measuring device according to claim 1, which is characterized in that the backup power equipment,
It include: the backup power supply, Charge Management equipment and power supply management equipment；
Wherein, the output end that electric equipment is surveyed in the induction is connect by the Charge Management equipment with the backup power supply, is used for
For backup power supply charging；The power supply management equipment surveys the output of electric equipment with the backup power supply and the induction respectively
End connection, for controlling the power supply of the synchronous phasor measurement equipment.
3. power distribution network synchronous phasor measuring device according to claim 1, which is characterized in that further include: filter apparatus is used
It is filtered in the electric current for surveying electric equipment output to the induction；
Wherein, the output end that electric equipment is surveyed in the induction is connect by the filter apparatus with the backup power equipment.
4. power distribution network synchronous phasor measuring device according to claim 1, which is characterized in that further include: reverse current is protected
Protect equipment；
Wherein, the output end that electric equipment is surveyed in the induction is connected by the reverse-current protection equipment and the backup power equipment
It connects.
5. power distribution network synchronous phasor measuring device according to claim 1, which is characterized in that further include: voltage order one turns
Exchange device, the voltage for surveying electric equipment output to the induction are converted；
Wherein, the output end that electric equipment is surveyed in the induction is connected by the voltage order one conversion equipment and the backup power equipment
It connects.
6. power distribution network synchronous phasor measuring device according to claim 1, which is characterized in that further include: secondary voltage turns
Exchange device, the voltage for exporting to the backup power equipment are converted；
Wherein, the output end of the backup power equipment is set by the secondary voltage conversion equipment with the synchronous phasor measurement
Standby connection.
7. power distribution network synchronous phasor measuring device according to any one of claims 1 to 6, which is characterized in that further include: it protects
Equipment is protected, for providing power control and over-voltage protecting function；
Wherein, the protection equipment setting is surveyed between electric equipment and the backup power equipment in the induction, with the induction
Survey the output end connection of electric equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910227143.9A CN109765428A (en) | 2019-03-25 | 2019-03-25 | A kind of power distribution network synchronous phasor measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910227143.9A CN109765428A (en) | 2019-03-25 | 2019-03-25 | A kind of power distribution network synchronous phasor measuring device |
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| CN109765428A true CN109765428A (en) | 2019-05-17 |
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| CN201910227143.9A Pending CN109765428A (en) | 2019-03-25 | 2019-03-25 | A kind of power distribution network synchronous phasor measuring device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119388A (en) * | 2015-09-01 | 2015-12-02 | 国网新疆电力公司经济技术研究院 | Current transformer energy-obtaining power supply working in wide current range |
| CN205620502U (en) * | 2016-05-05 | 2016-10-05 | 国家电网公司 | Join in marriage net line fault positioner |
| CN106646134A (en) * | 2016-12-26 | 2017-05-10 | 华北电力大学 | PMU device for power distribution network line |
| CN209707592U (en) * | 2019-03-25 | 2019-11-29 | 杭州电力设备制造有限公司 | A kind of power distribution network synchronous phasor measuring device |
-
2019
- 2019-03-25 CN CN201910227143.9A patent/CN109765428A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119388A (en) * | 2015-09-01 | 2015-12-02 | 国网新疆电力公司经济技术研究院 | Current transformer energy-obtaining power supply working in wide current range |
| CN205620502U (en) * | 2016-05-05 | 2016-10-05 | 国家电网公司 | Join in marriage net line fault positioner |
| CN106646134A (en) * | 2016-12-26 | 2017-05-10 | 华北电力大学 | PMU device for power distribution network line |
| CN209707592U (en) * | 2019-03-25 | 2019-11-29 | 杭州电力设备制造有限公司 | A kind of power distribution network synchronous phasor measuring device |
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