CN106771521A - A kind of substation equipment overvoltage aggregation of data acquisition system and method - Google Patents
A kind of substation equipment overvoltage aggregation of data acquisition system and method Download PDFInfo
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- CN106771521A CN106771521A CN201611161357.3A CN201611161357A CN106771521A CN 106771521 A CN106771521 A CN 106771521A CN 201611161357 A CN201611161357 A CN 201611161357A CN 106771521 A CN106771521 A CN 106771521A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of substation equipment overvoltage aggregation of data acquisition system, including one-level divider sensor, second divided voltage and signal trace device, signal gathering unit, data transfer and storage system；One-level divider sensor is connected between the equipment of transformer station and ground wire；Second divided voltage and signal trace device are connected with one-level divider sensor, and when equipment voltage signal exceedes default equipment voltage threshold, then trigger signal collecting unit automatic data collection transfinites voltage signal；Signal gathering unit is connected with second divided voltage and signal trace device, and discrete signal is converted to according to the default frequency acquisition voltage signal that will transfinite；Data transfer is connected with storage system with signal gathering unit, and the discrete data signal collected for transmission is simultaneously stored.The overvoltage information of the system acquisition transformer station distinct device that the present invention is provided, more can carry out overvoltage protection by the accurate, distinct device systematically to transformer station, it is ensured that the safe operation of substation equipment.
Description
Technical field
The present invention relates to transformer station's overvoltage data acquisition technology field, particularly a kind of substation equipment overvoltage data
Synthetical collection system.
Background technology
Power network overvoltage is the important hidden danger for influenceing grid power transmission circuit and substation equipment operation safety, can be to power transmission line
Road and substation equipment cause greatly to influence safely.On the basis of not influenceing substation safety to run, real-time monitoring power transformation
The voltage signal stood, realizes the acquisition of transformer substation voltage running status, is easy to carry out crash analysis and insulation to substation equipment
Coordinate.Meanwhile, on the basis of a large amount of overvoltage data, transformer station's overvoltage data can apply to overvoltage early warning, power transformation
Station equipment Real-time Performance Evaluation and the Strategies of Maintenance for drawing substation equipment.Therefore, the prison of overvoltage is carried out to substation equipment
Survey has important practical significance.And then, it is necessary to a kind of substation equipment overvoltage data collecting system is designed, is realized to power transformation
The real-time acquisition of the overvoltage information of station equipment is simultaneously stored.
The content of the invention
The purpose of the present invention is to propose to a kind of substation equipment overvoltage aggregation of data acquisition system；The system can apply to
In voltage measurement sensor device.
The purpose of the present invention is achieved through the following technical solutions：
A kind of substation equipment overvoltage aggregation of data acquisition system that the present invention is provided, including one-level divider sensing
Device, second divided voltage and signal trace device, signal gathering unit, data transfer and storage system；
The one-level divider sensor is connected between the equipment of transformer station and ground wire；
The second divided voltage and signal trace device are connected with one-level divider sensor, the equipment for obtaining transformer station
Voltage signal, when equipment voltage signal exceedes default equipment voltage threshold, then trigger signal collecting unit automatic data collection surpasses
Voltage limit signal；
The signal gathering unit is connected with second divided voltage and signal trace device, will be transfinited electricity according to default frequency acquisition
Pressure signal is converted to discrete signal；
The data transfer is connected with storage system with signal gathering unit, for transmitting the dispersion number that collects it is believed that
Number and store.
Further, the discrete data signal is transmitted and is stored in remote MIS system.
Further, 10kV the and 35kV system sides that the one-level divider sensor company is connected in parallel in transformer station are each main
Equipment.
Present invention also offers a kind of substation equipment overvoltage data integrated collection method, following steps are specifically included：
S1：One-level divider sensor is connected between substation equipment and ground wire；
S2：Second divided voltage and signal trace device are connected to the output end of one-level divider sensor, are obtained and is tracked
The voltage signal of substation equipment, when equipment voltage exceedes default equipment voltage threshold, then trigger signal collecting unit；
S3：Collecting unit gathers overvoltage signal according to predeterminated frequency, obtains discrete data；
S4：The voltage signal of transformer station's relevant device that transmission and storage are collected.
Further, the one-level divider is capacitive divider or RC divider or other types voltage sensor.
Further, the discrete data signal is transmitted and is stored in remote MIS system.
Further, the one-level divider sensor parallel is connected to 10kV the and 35kV system sides of transformer station and each mainly sets
It is standby.
By adopting the above-described technical solution, the present invention has the advantage that：
The substation equipment overvoltage signal synthetical collection system that the present invention is provided is by being arranged on substation equipment
One-level divider sensor, the overvoltage information of collection transformer station distinct device；Picked out from the node of different substation equipments
The overvoltage information of divider measuring apparatus, can it is more accurate, overvoltage systematically carried out to the distinct device of transformer station prevent
Shield, it is ensured that the safe operation of substation equipment.
Other advantages of the invention, target and feature will be illustrated in the following description to a certain extent, and
And to a certain extent, based on being will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
Obtain.
Brief description of the drawings
Brief description of the drawings of the invention is as follows.
Fig. 1 is the structural representation of invention substation equipment overvoltage aggregation of data acquisition system.
Fig. 2 is the primary connection of invention substation equipment overvoltage aggregation of data acquisition system on-position in transformer station
Topological diagram.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
As shown in figure 1, the substation equipment overvoltage aggregation of data acquisition system that the present embodiment is provided, including one-level partial pressure
Device sensor, second divided voltage and signal trace device, signal gathering unit, data transfer and storage system；
The one-level divider sensor is connected to transformer station 35kV or 10kV equipment (such as bus, transformer, turnover
Line, reactor etc.) and ground wire between；Divider is not limited only to certain particular type, and divider can be the classes such as electric capacity, capacitance-resistance
Type, or other types voltage sensor.Can be different types of according to the actual motion condition selecting of substation equipment
Divider so that the voltage signal of the substation equipment that divider is measured more rapidly, it is more accurate.
The second divided voltage and signal trace device, for further reducing substation equipment voltage signal with adaptation signal
The voltage acquisition maximum of collecting unit, when equipment voltage exceedes default equipment voltage threshold, then trigger signal collection is single
Unit, automatic data collection transfinites voltage signal；This device not only only has the function of second divided voltage, triggers circuit is also had concurrently, with triggering
The function of follow-up signal collecting unit.In this process, it is necessary to set the voltage threshold of substation equipment in triggers circuit,
To coordinate the realization of Trigger Function.
The signal gathering unit, discrete signal is converted to according to certain frequency acquisition by the voltage signal of simulation, tool
There are A/D functions.The sample frequency of sampling apparatus needs to be set according to power-frequency voltage frequency and overvoltage equivalent frequency, and this is frequently
The minimum value of rate setting must be kept to obtaining after equivalent frequency highest overvoltage (such as lightning surge) signal acquisition
Data are undistorted.The sample frequency with certain nargin can be set, such as sample frequency is set to 10MHz, 20MHz etc..Adopt
Sample frequency is higher more real will to react the actual waveform of overvoltage, while can also collect more overvoltage data, need
Will the storage device of more Large Copacity stored.
The data transfer and storage system, the discrete data signal that will be collected are transmitted and are stored in mis system.
The relevant device of transformer station will set node and directly be connected with the one-level divider sensor of system acquisition device,
Synthetical collection system gathers the overvoltage information of transformer station's distinct device simultaneously；The overvoltage signal acquisition node of substation equipment
Equipping rules can be described as follows：The shnt capacitor of transformer station, shunt reactor, voltage transformer (PT) and arrester
Etc. (MOA) high-pressure side connects voltage sensor, and voltage sensor from these equipment more close to it is better；The station local coordinate frame of transformer station is low
Pressure (35kV and 10kV) side joint voltage sensor, and voltage sensor is more near better apart from station local coordinate frame；The load of transformer station
Outlet head end will also connect voltage sensor, and the position of sensor should be more near better apart from corresponding bus；Not only every mother
Line will set voltage sensor, and every section of sectionalized busbar will also set voltage sensor, particular location according to transformer station its
The voltage sensor of his device configuration is determined, is essentially more remote better apart from these voltage sensors.
The present embodiment additionally provides a kind of substation equipment overvoltage data integrated collection method, specifically includes following step
Suddenly：
S1：By one-level divider sensor be connected to transformer station 35kV or 10kV enter equipment (such as bus, transformer,
Inlet-outlet line, reactor etc.) and ground wire between；
S2：Second divided voltage and signal trace device are connected to the output end of one-level divider sensor, are obtained and is tracked
The voltage signal of substation equipment, when equipment voltage exceedes default equipment voltage threshold, then trigger signal collecting unit；
S3：Collecting unit gathers overvoltage signal according to certain frequency, obtains discrete data；
S4：The voltage signal of transformer station's relevant device that transmission and storage are collected.
Divider in the substation equipment overvoltage data collecting system is not limited to a certain specific divider, root
Can be the divider, or other classes of the different characteristics such as capacitive divider, RC divider the need for according to Practical Project
Type voltage sensor.
The frequency acquisition of the signal gathering unit of the acquisition system nor certain particular frequencies for determining in advance, but
Any frequency of sampling request is can guarantee that, that is, the sample frequency of the system is the value in certain frequency bandwidth.
The rear station detecting system start such as signal gathering unit, data storage and remote MIS system that the present embodiment is provided is certainly
Dynamic operation overvoltage data acquisition program, once voltage magnitude exceedes the threshold triggers circuit of setting, system automatic data collection
And storage is transmitted, and prepare overvoltage triggering collection next time automatically.
Fig. 2 is the primary connection of invention substation equipment overvoltage aggregation of data acquisition system on-position in transformer station
Topological diagram, due to having certain distance between the equipment of transformer station, the overvoltage transient process for causing equipment to be subject to is differed, so
The present invention is designed with node on different substation equipment connecting lines, and the P1-P4, T1-T4, C1-C2, B1 in such as Fig. 2-
B6 and L1-L10 nodes.The one-level divider of Zenith tracking device is connected to from node lead-out wire, and then gathers substation
There is the overvoltage information of equipment, reach the overvoltage data acquisition to each equipment, further carry out overvoltage protection.
In fig. 2, the harvester that L1-L10 points are drawn is the collection that overvoltage data are carried out to transformer station's outlet,
The harvester that P1-P4 points are drawn is the collection that overvoltage data are carried out to substation PT, the harvester that T1-T4 points are drawn
It is the collection that overvoltage data are carried out to substation transformer 35kV ends and 10kV ends, the harvester that B1-B6 points are drawn is right
Transformer station's respective bus bars carry out the collection of overvoltage data, and the harvester that C1-C2 points are drawn is to Substation Parallel Capacitor
Carry out the collection of overvoltage data.The equipping rules of these nodes are as follows：The shnt capacitor of transformer station, shunt reactor, electricity
Pressure transformer (PT) and the high-pressure side such as arrester (MOA) connect voltage sensor, and voltage sensor from these equipment more close to it is better；
Station local coordinate frame low pressure (35kV and 10kV) side joint voltage sensor of transformer station, and voltage sensor gets over apart from station local coordinate frame
It is near better；The load outlet head end of transformer station will also connect voltage sensor, and the position of sensor should be apart from corresponding bus
It is more near better；Not only every bus will set voltage sensor, and every section of sectionalized busbar will also set voltage sensor, tool
The voltage sensor that body position configures according to transformer station other equipment determines, be essentially apart from these voltage sensors it is more remote more
It is good.
The substation equipment overvoltage signal synthetical collection system that the present embodiment is provided, synthetical collection system gathers change simultaneously
The overvoltage information of power station distinct device；The equipping rules of the overvoltage signal acquisition node of substation equipment can be described such as
Under：The high-pressure sides such as the shnt capacitor of transformer station, shunt reactor, voltage transformer (PT) and arrester (MOA) connect voltage biography
Sensor, and voltage sensor is more near better apart from these equipment；Station local coordinate frame low pressure (35kV and 10kV) side joint of transformer station
Voltage sensor, and voltage sensor is more near better apart from station local coordinate frame；The load outlet head end of transformer station will also connect voltage
Sensor, and the position of sensor should be more near better apart from corresponding bus；Not only every bus will set voltage sensor
Device, and every section of sectionalized busbar will also set voltage sensor, and the voltage that particular location is configured according to transformer station's other equipment is passed
Sensor is determined, is essentially more remote better apart from these voltage sensors.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of the technical program, it all should cover in the present invention
Protection domain in the middle of.
Claims (7)
1. a kind of substation equipment overvoltage aggregation of data acquisition system, it is characterised in that：Including one-level divider sensor, two
Secondary partial pressure and signal trace device, signal gathering unit, data transfer and storage system；
The one-level divider sensor is connected between the equipment of transformer station and ground wire；
The second divided voltage and signal trace device are connected with one-level divider sensor, the equipment voltage for obtaining transformer station
Signal, when equipment voltage signal exceedes default equipment voltage threshold, then trigger signal collecting unit automatic data collection transfinites electricity
Pressure signal；
The signal gathering unit is connected with second divided voltage and signal trace device, according to default frequency acquisition will transfinite voltage believe
Number be converted to discrete signal；
The data transfer is connected with storage system with signal gathering unit, for transmitting the discrete data signal for collecting simultaneously
Storage.
2. substation equipment overvoltage aggregation of data acquisition system according to claim 1, it is characterised in that：It is described discrete
Data signal transmission is simultaneously stored in remote MIS system.
3. substation equipment overvoltage aggregation of data acquisition system according to claim 1, it is characterised in that：The one-level
Divider sensor parallel is connected in each equipment of the 10kV and 35kV system sides of transformer station.
4. a kind of substation equipment overvoltage data integrated collection method, it is characterised in that：Specifically include following steps：
S1：One-level divider sensor is connected between substation equipment and ground wire；
S2：Second divided voltage and signal trace device are connected to the output end of one-level divider sensor, power transformation is obtained and track
The voltage signal of station equipment, when equipment voltage exceedes default equipment voltage threshold, then trigger signal collecting unit；
S3：Collecting unit gathers overvoltage signal according to predeterminated frequency, obtains discrete data；
S4：The voltage signal of transformer station's relevant device that transmission and storage are collected.
5. substation equipment overvoltage data integrated collection method according to claim 4, it is characterised in that：The one-level
Divider is capacitive divider, RC divider or voltage sensor.
6. substation equipment overvoltage data integrated collection method according to claim 4, it is characterised in that：It is described discrete
Data signal transmission is simultaneously stored in remote MIS system.
7. substation equipment overvoltage data integrated collection method according to claim 4, it is characterised in that：The one-level
Divider sensor parallel is connected in each equipment of the 10kV and 35kV system sides of transformer station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611161357.3A CN106771521A (en) | 2016-12-15 | 2016-12-15 | A kind of substation equipment overvoltage aggregation of data acquisition system and method |
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| CN201611161357.3A CN106771521A (en) | 2016-12-15 | 2016-12-15 | A kind of substation equipment overvoltage aggregation of data acquisition system and method |
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| CN201611161357.3A Pending CN106771521A (en) | 2016-12-15 | 2016-12-15 | A kind of substation equipment overvoltage aggregation of data acquisition system and method |
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Cited By (5)
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| CN108387819A (en) * | 2018-01-26 | 2018-08-10 | 全球能源互联网研究院有限公司 | Overvoltage deciding field method and apparatus along transmission line of alternation current |
| CN110133358A (en) * | 2019-05-15 | 2019-08-16 | 安徽亚辉电气自动化有限公司 | A kind of inhibition management system of overvoltage |
| CN110988444A (en) * | 2019-11-21 | 2020-04-10 | 深圳供电局有限公司 | Zinc oxide lightning arrester voltage divider, overvoltage detection lightning arrester and detection method |
| CN113671411A (en) * | 2021-09-02 | 2021-11-19 | 云南电网有限责任公司电力科学研究院 | Substation short-circuit test overvoltage testing device and method based on LoRa communication |
| CN113985205A (en) * | 2021-10-27 | 2022-01-28 | 重庆邮电大学 | Power distribution network overvoltage acquisition method based on Beidou time service and edge calculation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113671411A (en) * | 2021-09-02 | 2021-11-19 | 云南电网有限责任公司电力科学研究院 | Substation short-circuit test overvoltage testing device and method based on LoRa communication |
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Application publication date: 20170531 |