CN104502741A - Remote and online monitoring system for static var generator - Google Patents

Remote and online monitoring system for static var generator Download PDF

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Publication number
CN104502741A
CN104502741A CN201410689430.9A CN201410689430A CN104502741A CN 104502741 A CN104502741 A CN 104502741A CN 201410689430 A CN201410689430 A CN 201410689430A CN 104502741 A CN104502741 A CN 104502741A
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acquisition unit
monitoring system
client
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CN104502741B (en
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柴晨超
李瑞桂
郑金芝
郭文光
孟四龙
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HEBEI XUHUI ELECTRIC Ltd
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HEBEI XUHUI ELECTRIC Ltd
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Abstract

The invention is applied to the technical field of electric energy quality treatment, and provides a remote and online monitoring system for a static var generator, which comprises a data collector, a data server and a client, wherein the data collector is used for being connected with the static var generator SVG, collecting data of the SVG and updating the SVG data to the data server via a wireless network; the data server is used for receiving the SVG data updated by the data collector and analyzing the data and storing the data to a local database; and the client is used for reading corresponding data in the database of the data server according to an operation instruction, and carrying out corresponding operation on the read data. Through the system of the invention, a worker can monitor operation states of each SVG and the system in real time through operating on the client without arriving at the SVG operation site, powerful data resource supports are provided for SVG site debugging, operation performance evaluation and fault analysis, and early warning is provided for possible fault through data analysis.

Description

Static reacance generator remote online monitoring system
Technical field
The invention belongs to power quality controlling technical field, particularly relate to a kind of static reacance generator remote online monitoring system.
Background technology
Along with the develop rapidly of modern society, the demand of electric energy is in continuous increase, simultaneously a large amount of uses of rectifying installation in consumer, the appearance of impact load, uncompensated load and large load makes grid supply quality decline, and power quality problem more and more causes the concern of supplier of electricity and electricity consumption side.Static reacance generator (Static Var Generator, SVG) be so that power electronic devices IGBT(Insulated Gate Bipolar Transistor can be turned off, insulated gate bipolar transistor) be the active dynamic reactive bucking-out system of core, it rapidly, continuously, smoothly, accurately can provide capacitive and lagging reactive power, thus the raising quality of power supply, make it meet the requirements such as Power Systems factor, harmonic wave control, voltage fluctuation and flicker.SVG represents the new developing direction of present stage power system reactive power compensation technology, runs with having ensured power system stability, efficient and high-quality.
Because SVG technical difficulty is large, system composition is complicated, concerning user, manufacturer, the maintenance difficulties of SVG equipment is comparatively large, shows: optimum configurations is complicated, and user is difficult to grasp; As device breaks down out of service, owing to lacking Data support, failure cause is difficult to search.In addition, SVG controlling mechanism is complicated, if inside goes wrong, may affect reactive power and export, thus cause tremendous influence to electrical network.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of static reacance generator remote online monitoring system, be intended to solve the technical matters that existing SVG plant maintenance difficulty is comparatively large, cannot monitor effectively in real time.
The present invention adopts following technical scheme:
Described static reacance generator remote online monitoring system, comprising:
Data acquisition unit, for being connected with static reacance generator SVG, uploads to data server by wireless network by described SVG device data after gathering SVG device data;
Data server, for receiving SVG device data that described data acquisition unit uploads and resolving, is then saved to local data base;
Client, for reading corresponding data in described data server data storehouse according to operational order, and carries out corresponding operating to the data read;
Described data acquisition unit and client all have one at least, and described data acquisition unit and described data server adopt radio connection, and described data server and described client adopt wireless or wired connection mode.
Further, described data acquisition unit comprises microprocessor, the wireless network module be connected with described microprocessor and interface unit, and described interface unit is serial ports or Ethernet interface, for being connected with SVG interface; Described microprocessor is for gathering SVG device data, and described wireless network module is used for described SVG device data to be uploaded to data server.
Further, described serial ports is RS485 serial ports.
Further, described wireless network module is 2G, 3G or 4G wireless network module.
The invention has the beneficial effects as follows: by present system, staff, without the need to running on-the-spot to equipment, can facilitate in client, the ruuning situation of remote monitoring electric system intuitively and SVG equipment, system data change and plant running state very clear; And the data of system cloud gray model are permanently stored in data server, the runnability for SVG equipment assesses and fault diagnosis provides convenience; In addition, also early warning logic can be set, give warning in advance before may breaking down, generation of preventing accident.By present system, can be very fast find out failure cause, fix a breakdown, contribute to the Continual Improvement of product.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the static reacance generator remote online monitoring system that the embodiment of the present invention provides;
Fig. 2 is the structural drawing of the data acquisition unit that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Fig. 1 shows the structure of the static reacance generator remote online monitoring system that the embodiment of the present invention provides, and illustrate only the part relevant to the embodiment of the present invention for convenience of explanation.
The static reacance generator remote online monitoring system that the present embodiment provides comprises:
Data acquisition unit 1, for being connected with static reacance generator SVG, uploads to data server by wireless network by described SVG device data after gathering SVG device data;
Data server 2, for receiving SVG device data that described data acquisition unit uploads and resolving, is then saved to local data base;
Client 3, for reading corresponding data in described data server data storehouse according to operational order, and carries out corresponding operating to the data read;
Described data acquisition unit 1 and client 2 all have one at least, and described data acquisition unit 1 adopts radio connection with described data server 2, and described data server 2 and described client 3 adopt wireless or wired connection mode.
SVG equipment is generally installed on low-tension transformer and large-scale electric equipment, changes useful work into for the idle work transmitted by low-tension transformer.Because SVG device distribution is extensive, a kind of remote online monitoring system is not also had to carry out effective unified management to each SVG equipment at present.For this reason, present embodiments provide a kind of static reacance generator remote online monitoring system, in the present embodiment, described data acquisition unit is positioned at SVG equipment and runs on-the-spot, with the SVG equipment connection of far-end.During specific implementation, be connected with the SVG controller of SVG equipment by serial ports or Ethernet interface, described data acquisition unit is built-in with various data acquisition module, for gathering the corresponding relevant service data connecting SVG equipment, every voltage of such as SVG controller, electric current, alarm, on off state, temperature, and the data such as DC voltage, output voltage, temperature of SVG equipment each power cell interior.Data acquisition unit wirelessly sends data to data server after collecting SVG device data.
When specific implementation data upload sends, first data acquisition unit 1 by every data of collecting according to predetermined protocol form encapsulation of data (such as Modbus protocol format), then described data are sent to described data server 2 by timing, and include the number information of concrete data acquisition unit in the packet sent, be convenient to data server like this and correctly store data.
Described data server, as the data storage management center of system, after the SVG device data receiving the transmission of each data acquisition unit, is resolved received data, then carries out classification and stores.Last client, by reading data server data database data, can show data, print, analyze, inquire about, derive, back up, recover, the operation such as fault pre-alarming.Client described here is the computer be connected with data server arbitrarily.
As a kind of concrete structure of data acquisition unit, as shown in Figure 2, described data acquisition unit 1 comprises microprocessor 11, the wireless network module 12 be connected with described microprocessor 11 and interface unit 13, described interface unit 13 is serial ports (such as RS485 interface) or Ethernet interface, for being connected with SVG interface; Described microprocessor is as the control center of data acquisition unit, and for gathering SVG device data, described wireless network module 12, for described SVG device data is uploaded to data server, can be such as 2G, 3G or 4G wireless network module.
In order to prove that the present invention is practical, as a kind of selection mode, described data acquisition unit adopts MCU to add GPRS(General Packet Radio Service, general packet radio service) mode of module realizes the remote transmission of data.MCU adopts the STM32F103 chip of ST company, and GPRS module uses Siemens MC 39I.The interface of MCU and GPRS module is serial ports, by AT order control MC39I.Embedded TCP/IP over ppp protocol on MCU, to realize the dial-up connection of GPRS.MCU also provides and the network interface of monitored equipment and serial ports.MCU realizes Ethernet interface by DMC9000 Ethernet chip.Serial ports supports Modebus agreement, 103 stipulations, CDT stipulations, and Ethernet interface supports IEC61850 agreement.The long-distance Log server of data is completed again by GPRS module.
To sum up, the invention provides a kind of static reacance generator remote online monitoring system, the real-time status that SVG equipment runs can be monitored easily in strange land, than system power voltage real time data, switchgear action, power cell chain link state, SVG output current and SVG control system internal operation operating mode etc., for SVG complete equipment field adjustable, runnability assessment and fault analysis provide strong data resource to support, and by data analysis, contingent fault is given warning in advance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. a static reacance generator remote online monitoring system, is characterized in that, described system comprises:
Data acquisition unit, for being connected with static reacance generator SVG, uploads to data server by wireless network by described SVG device data after gathering SVG device data;
Data server, for receiving SVG device data that described data acquisition unit uploads and resolving, is then saved to local data base;
Client, for reading corresponding data in described data server data storehouse according to operational order, and carries out corresponding operating to the data read;
Described data acquisition unit and client all have one at least, and described data acquisition unit and described data server adopt radio connection, and described data server and described client adopt wireless or wired connection mode.
2. static reacance generator remote online monitoring system according to claim 1, it is characterized in that, described data acquisition unit comprises microprocessor, the wireless network module be connected with described microprocessor and interface unit, described interface unit is serial ports or Ethernet interface, for being connected with SVG interface; Described microprocessor is for gathering SVG device data, and described wireless network module is used for described SVG device data to be uploaded to data server.
3. static reacance generator remote online monitoring system according to claim 2, it is characterized in that, described serial ports is RS485 serial ports.
4. static reacance generator remote online monitoring system according to claim 3, it is characterized in that, described wireless network module is 2G, 3G or 4G wireless network module.
CN201410689430.9A 2014-11-26 2014-11-26 Static reactive generator remote online monitoring system Active CN104502741B (en)

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CN110443997A (en) * 2019-08-23 2019-11-12 南京深科博业电气股份有限公司 Static reactive generator based on NB-IOT technology

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CN110443997A (en) * 2019-08-23 2019-11-12 南京深科博业电气股份有限公司 Static reactive generator based on NB-IOT technology

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Denomination of invention: Remote and online monitoring system for static var generator

Effective date of registration: 20190506

Granted publication date: 20180504

Pledgee: Agricultural Bank of China Limited by Share Ltd Shijiazhuang New District Science and technology sub branch

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