CN2838131Y - Electric equipment state monitoring system based on grouped measurement through field bus - Google Patents
Electric equipment state monitoring system based on grouped measurement through field bus Download PDFInfo
- Publication number
- CN2838131Y CN2838131Y CN 200520129537 CN200520129537U CN2838131Y CN 2838131 Y CN2838131 Y CN 2838131Y CN 200520129537 CN200520129537 CN 200520129537 CN 200520129537 U CN200520129537 U CN 200520129537U CN 2838131 Y CN2838131 Y CN 2838131Y
- Authority
- CN
- China
- Prior art keywords
- monitoring means
- monitoring
- synchronous triggering
- fieldbus
- sampling
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses an electrical appliance state monitoring system based on grouped measurement of a field bus, which comprises a supervisory computer which is connected with a plurality of monitoring units by the field bus. The monitoring units comprises synchronous triggering monitoring units and synchronous sampling monitoring units, wherein a monitoring group is composed of a synchronous triggering monitoring unit and a synchronous sampling monitoring unit at least, and the number of the monitoring groups is one at least. The monitoring system provided by the utility model does not need the intervention of the supervisory computer in the whole process of data collection and calculation. Consequently, the communication processes of the supervisory computer to all types of monitoring units are unified into a process of reading the final date, and the utility model is convenient for the expansion of a system. Different monitoring units produced by different factories can work normally when accessed with the field bus, as long as the technical specifications of the utility model is executed.
Description
Technical field
The utility model relates to on-line monitoring system, particularly a kind of electric equipment state on_line monitoring system based on the fieldbus grouping mea-sure of power industry.
Background technology
In the high voltage electric equipment state on_line monitoring field of power industry, need the real-time dielectric loss to capacitance type equipment, capacitance to carry out on-line measurement.Dielectric loss measurement needs the phase place of comparison system voltage and capacitance type equipment end screen electric current, and the capacitance measurement needs the amplitude of acquisition system voltage and the amplitude of capacitance type equipment end screen electric current.Because two kinds of monitoring means, promptly screen current monitoring unit, system voltage monitoring means and capacitance type equipment end is installed on respectively near the monitored equipment, carries out communication, swap data by fieldbus between them.The measurement of dielectric loss, capacitance needs two unit image data simultaneously, and the mutual computing of data with gathering simultaneously draws dielectric loss and capacitance.Way in the past is that the data of two unit even waveform all are sent to host computer, carries out computing in host computer.Such system just becomes the dedicated system of dielectric loss measurement, can not adapt to the expansion and the exchange of on-line system, be unfavorable for that industrialization, scale use, other types monitoring means (as the monitoring means of circuit breaker monitoring means or other producers, the monitoring means of newtype etc.) is if to insert this system just very difficult; If the transmission waveform, then the communication efficiency of fieldbus is quite low, and in order to reduce synchronous error, requires the communication speed height, and this has just limited communication distance, is unfavorable for using in large-scale substation.
The innovation and creation content
The purpose of this utility model provide a kind ofly expand, the electrical equipment status monitoring system based on the fieldbus grouping mea-sure of interchangeable converting station high voltage electrical apparatus.
For achieving the above object, the utility model is taked technical scheme: a kind of electrical equipment status monitoring system based on the fieldbus grouping mea-sure, it includes a host computer, described host computer is connected with several monitoring means by fieldbus, and described monitoring means includes synchronous triggering monitoring means and synchronized sampling monitoring means; One triggers monitoring means and at least one synchronized sampling monitoring means synchronously forms a monitoring group, and the quantity of described monitoring group is at least one group; In each described monitoring group, described synchronous triggering monitoring means sends a synchronous trigger command and gathers the characteristic quantity that this monitoring means will be measured immediately, only receive the order of this group synchronous triggering monitoring means with above-mentioned synchronous triggering monitoring means each synchronized sampling monitoring means on the same group, after receiving the synchronous triggering order, gather the characteristic quantity that each synchronized sampling monitoring means will be measured at once; The characteristic quantity of described synchronous triggering monitoring means collection sends to and its each synchronized sampling monitoring means on the same group, after each synchronized sampling monitoring means receives the characteristic quantity that this group synchronous triggering monitoring means sends by fieldbus, the characteristic quantity that collects according to himself calculates the monitoring result of final needs, and described monitoring result is sent to host computer by fieldbus.
In practical operation, described synchronous triggering monitoring means is the system voltage unit, and it is arranged on the bus of every section in transformer station; Described synchronized sampling monitoring means is the monitoring means of capacitance type equipment or lightning arrester, and it is separately positioned near the equipment of required measurement.A minimum system voltage unit and a capacitance type equipment or the lightning arrester monitoring means of comprising of grouping.According to the segmentation situation of transformer station's main wiring mode and monitored equipment place bus, one can have maximum 16 groups in monitoring system.All monitoring means of independently finishing monitoring all do not divide into groups.The monitoring means that divides into groups and do not divide into groups is all on same fieldbus.All monitoring means are installed near monitored equipment.
In addition, described monitoring means also includes initiatively sampling monitoring unit and passive sampling monitoring means.Described active sampling monitoring unit is meant the monitoring means that sampling is controlled voluntarily and triggered, and as the temperature of oil in transformer monitoring means, it is arranged on the transformer; The passive sampling monitoring means is meant that sampling is the circuit breaker monitoring means by the monitored equipment Event triggered, and it is arranged on proximity to circuit breakers.
In the above-mentioned electrical equipment status monitoring system, be connected by fieldbus between described synchronous triggering monitoring means and the synchronized sampling monitoring means, synchronous triggering monitoring means and synchronized sampling monitoring means divide into groups by the mode of digital communication, do not have the grouping of physical structure; And also be to connect by fieldbus between described synchronous triggering monitoring means, synchronized sampling monitoring means, active sampling monitoring unit and the passive sampling monitoring means.
The utility model is owing to take above design, it has the following advantages: 1, in the monitoring system provided by the utility model, whole data collection and calculation process, do not need the host computer intervention, thereby make host computer unified for to read the process of final data, thereby make things convenient for the expansion of system, even the different monitoring means that different manufacturers is produced to the communication process of all types monitoring means, as long as carry out technical specification of the present utility model, insert fieldbus and get final product operate as normal.Such as, transformer top-oil temperature monitoring means is initiatively to be sampled as the master, and the circuit breaker monitoring means is this based on passive sampling, does not need the monitoring means of synchronous triggering just can insert easily.2, in the utility model, measuring process adopts the method for calculated characteristics amount, and characteristic quantity can not have greatly changed in the error in bigger lock in time, was applicable to electric power system dielectric loss measurement waveform more stably, and precision meets the demands fully.3, in the utility model, each monitoring means can be arranged on from the very near place of equipment, and host computer can be arranged on the place away from equipment, do not need a large amount of transmitted waveform data between each monitoring means, the communication efficiency height, thereby overcome the waveform transmission and adopted high communication speed in order to reach high synchronous requirement, the communication distance that makes descends greatly, be unfavorable for the drawback in large-scale substation, used, therefore on-line monitoring system provided by the utility model can better be applicable in the large-scale substation.4, the measuring unit in all monitoring groups inserts same fieldbus, does not have the structural grouping of physics, and grouping is to adopt the mode of digital communication to carry out, and the mode that defines group number, software judgement group number in communications protocol is divided into groups.
Description of drawings
Fig. 1 is the block diagram of electrical equipment status monitoring provided by the utility model system
Fig. 2 is the block diagram of the utility model one embodiment
Embodiment
As shown in Figure 1, a kind of electrical equipment status monitoring system that provides for the utility model based on the fieldbus grouping mea-sure, it includes a host computer 1, host computer 1 is connected with several monitoring means 3 by fieldbus 2, and monitoring means 3 includes synchronous triggering monitoring means 31 and synchronized sampling monitoring means 32; One triggers monitoring means 31 synchronously can form a monitoring group 4 with at least one synchronized sampling monitoring means 32, and the quantity of monitoring group 4 is set according to actual needs, and it is at least one group; Each monitoring group 4 can be monitored various electric equipments, monitors capacitive based equipment such as the monitoring group that has, and the equipment of the lightning-arrest type of the monitoring group that has monitoring.
Specifically, the synchronous triggering monitoring means 31 of described each monitoring group also is connected by fieldbus with each synchronized sampling monitoring means 32, when measuring, at first send a synchronous trigger command by fieldbus by synchronous triggering monitoring means 31, and synchronous triggering monitoring means 31 is gathered the characteristic quantity that itself will be measured immediately, with synchronous triggering monitoring means 31 each synchronized sampling monitoring means 32 on the same group after receiving the synchronous triggering order that synchronous triggering monitoring means 31 sends, gather the characteristic quantity that each synchronized sampling monitoring means will be measured at once; Then, synchronous triggering monitoring means 31 sends to the characteristic quantity of gathering and its each synchronized sampling monitoring means 32 on the same group by fieldbus, after each synchronized sampling monitoring means 32 receives the characteristic quantity that synchronous triggering monitoring means 31 sends, the characteristic quantity that collects according to himself calculates the monitoring result of final needs, and monitoring result is sent to host computer 1 by fieldbus.
As shown in Figure 2, to monitor capacitive based equipment is example, monitoring means on each of transformer station section bus can be divided into a monitoring group 4, and the monitoring means in all monitoring groups inserts same fieldbus, and dividing into groups actual is that the mode that defines group number, software judgement group number in communications protocol is divided into groups; In the present embodiment, synchronous triggering monitoring means 31 in the monitoring group 4 is the system voltage unit 33 of monitoring voltage, it is arranged on the bus of every section in transformer station, the dielectric loss monitoring means 34 that synchronized sampling monitoring means 32 in the monitoring group is, its be separately positioned on required measurement each capacitance type equipment near.When measuring, at first send a synchronous trigger command by fieldbus by system voltage unit 33, and system voltage unit 33 is the amplitude U and the phase place α of acquisition system voltage immediately, with system voltage unit 33 each dielectric loss monitoring means 34 on the same group after receiving the synchronous triggering order of sending system voltage unit 33, gather the amplitude I and the phase beta of the end screen electric current of its capacitive based equipment of monitoring at once; Then, system voltage unit 33 sends to the amplitude U and the phase place α of its voltage that collects and its each dielectric loss monitoring means 34 on the same group by fieldbus, and (pi/2-(β-α)) calculates capacitance C and dielectric loss tg δ to each dielectric loss monitoring means 34 according to formula C=I/ (U ω), tg δ=tg; And capacitance C and the dielectric loss tg δ that calculates sent to host computer 1 by fieldbus.Host computer 1 can be other computer systems of industrial computer.
If the lightning-arrest type equipment of monitoring, it also can divide into groups according to the foregoing description, and set synchronous triggering monitoring means and synchronized sampling monitoring means, only the synchronous triggering monitoring means is gathered different characteristic quantities with the synchronized sampling monitoring means, does not do at this and gives unnecessary details.
In the utility model, all be connected between each monitoring group 4 and the host computer 1, and host computer do not need to calculate by fieldbus, it needs to receive final calculation result that each the synchronized sampling monitoring means 32 in each monitoring group 4 sends and gets final product.Therefore, can also connect some other active sampling monitoring unit and passive sampling monitoring means (figure does not show) at the scene on the bus.Described active sampling monitoring unit can be transformer top-oil temperature monitoring means; The passive sampling monitoring means can be the circuit breaker monitoring means.
The passive sampling monitoring means is an example with the circuit breaker monitoring means, the collection of circuit breaker monitoring means be that circuit breaker closes, closing during separating brake, switching winding current waveform and amplitude.It is in work, this monitoring means does not need to receive the synchronous triggering order, according to trigger condition (threshold value) image data of setting, start collection when satisfying trigger condition (surpassing threshold value), then data are sent to host computer by fieldbus.
Initiatively the sampling monitoring unit is an example with transformer top-oil temperature monitoring means, the collection of transformer top-oil temperature monitoring means be the oily temperature data of transformer.It does not need to receive the synchronous triggering order when work, the sampling period timing acquiring according to setting is sent to host computer with data by fieldbus then.
In the utility model, all connect between described synchronous triggering monitoring means, synchronized sampling monitoring means, active sampling monitoring unit and the passive sampling monitoring means by fieldbus.
Claims (9)
1, a kind of electrical equipment status monitoring system based on the fieldbus grouping mea-sure, it includes a host computer, it is characterized in that:
Described host computer is connected with several monitoring means by fieldbus, and described monitoring means includes synchronous triggering monitoring means and synchronized sampling monitoring means; One triggers monitoring means and at least one synchronized sampling monitoring means synchronously forms a monitoring group, and the quantity of described monitoring group is at least one group;
In each described monitoring group, described synchronous triggering monitoring means sends a synchronous trigger command and gathers the characteristic quantity that this monitoring means will be measured immediately by fieldbus, with above-mentioned synchronous triggering monitoring means each synchronized sampling monitoring means on the same group after receiving the synchronous triggering order, gather the characteristic quantity that each synchronized sampling monitoring means will be measured at once; The characteristic quantity of described synchronous triggering monitoring means collection sends to and its each synchronized sampling monitoring means on the same group by fieldbus, after each synchronized sampling monitoring means receives the characteristic quantity that the synchronous triggering monitoring means sends, the characteristic quantity that collects according to himself calculates the monitoring result of final needs, and described monitoring result is sent to host computer by fieldbus.
2, electrical equipment status monitoring according to claim 1 system, it is characterized in that: described synchronous triggering monitoring means is the system voltage unit, it is arranged on the bus of every section in transformer station; Described synchronized sampling monitoring means is the monitoring means of capacitance type equipment or lightning arrester, and it is separately positioned near the equipment of required measurement.
3, electrical equipment status monitoring according to claim 1 and 2 system is characterized in that: described monitoring means also includes initiatively sampling monitoring unit and passive sampling monitoring means.
4, electrical equipment status monitoring according to claim 3 system, it is characterized in that: described active sampling monitoring unit is the temperature of oil in transformer monitoring means, and it is arranged near the transformer; The passive sampling monitoring means is the circuit breaker monitoring means, and it is arranged on proximity to circuit breakers.
5, electrical equipment status monitoring according to claim 1 and 2 system is characterized in that: be connected by fieldbus between described synchronous triggering monitoring means and the synchronized sampling monitoring means.
6, according to claim 1 or 2 or 4 described electrical equipment status monitoring systems, it is characterized in that: described synchronous triggering monitoring means and synchronized sampling monitoring means divide into groups by the mode of digital communication, do not have the grouping of physical structure.
7, electrical equipment status monitoring according to claim 3 system, it is characterized in that: described synchronous triggering monitoring means and synchronized sampling monitoring means divide into groups by the mode of digital communication, do not have the grouping of physical structure.
8, electrical equipment status monitoring according to claim 3 system is characterized in that: described synchronous triggering monitoring means, synchronized sampling monitoring means, initiatively connect by fieldbus between sampling monitoring unit and the passive sampling monitoring means.
9, electrical equipment status monitoring according to claim 4 system is characterized in that: described synchronous triggering monitoring means, synchronized sampling monitoring means, initiatively connect by fieldbus between sampling monitoring unit and the passive sampling monitoring means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520129537 CN2838131Y (en) | 2005-10-24 | 2005-10-24 | Electric equipment state monitoring system based on grouped measurement through field bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520129537 CN2838131Y (en) | 2005-10-24 | 2005-10-24 | Electric equipment state monitoring system based on grouped measurement through field bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2838131Y true CN2838131Y (en) | 2006-11-15 |
Family
ID=37392621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520129537 Expired - Lifetime CN2838131Y (en) | 2005-10-24 | 2005-10-24 | Electric equipment state monitoring system based on grouped measurement through field bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2838131Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288818A (en) * | 2011-05-12 | 2011-12-21 | 航天科工深圳（集团）有限公司 | Split type measurement method and split type power distribution terminal |
| CN108917823A (en) * | 2018-06-06 | 2018-11-30 | 国网山东省电力公司博兴县供电公司 | The on-line monitoring method and system of automatic setting switchgear monitoring parameters |
-
2005
- 2005-10-24 CN CN 200520129537 patent/CN2838131Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288818A (en) * | 2011-05-12 | 2011-12-21 | 航天科工深圳（集团）有限公司 | Split type measurement method and split type power distribution terminal |
| CN108917823A (en) * | 2018-06-06 | 2018-11-30 | 国网山东省电力公司博兴县供电公司 | The on-line monitoring method and system of automatic setting switchgear monitoring parameters |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100401080C (en) | On-line monitoring method and system for converting station high voltage electrical apparatus | |
| CN101726640B (en) | Control and protection system of converter valve operating test device | |
| CN103827678B (en) | Method for distributed waveform recording in a power distribution system | |
| CN102325149B (en) | Intelligent network remote terminal unit (RTU) system of electrified railway | |
| US20120278421A1 (en) | Providing a data sample in a measurement and control system | |
| CN202167896U (en) | Integrated information platform of integration on-line monitoring system | |
| CN104993596A (en) | A distribution network automation remote terminal unit based on embedded multiple ARM processors | |
| CN112054596A (en) | System and method for acquiring running data of power distribution network in real time | |
| CN110907719A (en) | Low-voltage line subsection line loss real-time monitoring device and method | |
| CN1306677C (en) | Layered distributed monitoring system with chain type static synchronous compensator | |
| CN2838131Y (en) | Electric equipment state monitoring system based on grouped measurement through field bus | |
| CN103529327B (en) | A kind of full station equipment for monitoring power quality and monitoring method being suitable for Intelligent transformer station | |
| CN105227629A (en) | The long-range retrieval method that a kind of multi-source data is shown with figure | |
| CN110940855B (en) | Electric energy metering method and device suitable for three-second wiring of intelligent substation | |
| CN205265371U (en) | Transformer substation's long -range fortune dimension management and control device | |
| CN201966697U (en) | Power transformer intelligent terminal | |
| CN101651361A (en) | Integrated automation system of substation | |
| CN201541152U (en) | Intelligent combined power supply control system | |
| CN203705587U (en) | Insulating integrated on-line monitoring system for power equipment of transformer station | |
| CN202133711U (en) | Voltage fluctuation recording apparatus based on DLMS/COSEM | |
| CN202696289U (en) | Low voltage power distribution monitoring system | |
| CN102566550A (en) | Low-voltage communication system | |
| CN203722340U (en) | Merging unit intelligent terminal integrated device suitable for high and cold regions | |
| CN106160226B (en) | Method for improving PTP time synchronization precision of intelligent substation | |
| CN2870274Y (en) | Electric-apparatus monitoring system capable of using at once when plug in |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: BEIJING FUAN ELECTRIC EQUIPMENT CO.,LTD. Effective date: 20091113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091113 Address after: Beijing City, Haidian District small business Qinghe Road No. 15 Chinese Electric Power Research Institute of the Ministry of science and technology, zip code: 100192 Patentee after: China Electric Power Research Institute Address before: Beijing city small business Qinghe Road No. 15, zip code: 100085 Patentee before: Beijing Fuan Electric Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061115 |
|
| EXPY | Termination of patent right or utility model |