CN104242468A - Monitoring system for wind power generation tank type transformer - Google Patents
Monitoring system for wind power generation tank type transformer Download PDFInfo
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- CN104242468A CN104242468A CN201410542173.6A CN201410542173A CN104242468A CN 104242468 A CN104242468 A CN 104242468A CN 201410542173 A CN201410542173 A CN 201410542173A CN 104242468 A CN104242468 A CN 104242468A
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Abstract
The invention discloses a monitoring system for a wind power generation tank type transformer. The monitoring system comprises a main controller, a PLC (Programmable Logic Controller) controller and a thermal resistance input isolated gate; the PLC controller comprises a PLC module, a communication module, a power supply module, a DO (Defense Order) module and a DI (Data Input) module, wherein the PLC controller is connected with the main controller through the communication module, the DI module is connected with a box type transformer and is used for collecting signals through the signal sensor, and the DO module is connected with the box type transformer through a relay and is used for controlling the box type transformer; the input end of the thermal resistance input isolated gate is connected with the box type transformer through the temperature sensor, and the output end of the thermal resistance input isolated gate is connected with the DI module. According to the monitoring system provided by the invention, the operating status of the box type transformer in a wind power generation system can be monitored and controlled in real time, and faults or problems of the box type transformer can be processed in time.
Description
Technical field
The present invention relates to wind power generation field, particularly relate to a kind of supervisory control system for wind power generation box type transformer.
Background technology
In large-scale wind power field, due to the hundreds of rice at least of the distance between each unit of wind energy turbine set, several kilometers at most, therefore, exporting loss and the burning voltage of electric energy in order to reduce blower fan, needing, for every Fans is equipped with box type transformer, to be then incorporated to primary substation and to be transported to electrical network.
China in the past Construction of Wind Power scale is relatively little, automation, intelligent level are relatively low, especially in the monitoring of distributed box type transformer or blank out, there is no that automation can be sayed, or manual patrol is main, for these Miniature wind electric fields in the past, this mode can also maintain substantially reluctantly.But for Large Scale Wind Farm Integration, concentrated Real-time Collection is carried out to case parameter certificate and realizes the Centralizing inspection of wind chassis type transformer, the efficiency of blower fan management can not only be promoted, also help attendant and make corresponding decision-making fast according to real-time condition, for the grid-connected of blower fan electric power provides reliable guarantee.If therefore continue the construction model taked in the past, thousands of box type transformer can not get timely monitoring and controlling, must bring great impact to the stable operation of whole national grid,
In order to solve the problem, in prior art, propose following technology:
As China Patent No. " 201220732488.3 " discloses a kind of wind power generation box type intelligent transformer supervisory control system, its publication date is on 06 26th, 2013, its technical scheme is described intelligent monitor system, comprise monitoring processing terminal, detecting sensor system and background computer, described detecting sensor system is disposed on wind power generation box type transformer, the output of detecting sensor system is electrically connected with monitoring processing terminal, described monitoring processing terminal is connected with described background computer communication, monitoring processing terminal is also connected with the control relay of wind power generation box type transformer.
But with the prior art that above-mentioned patent document is representative, in actual use, still there is following defect: one, this supervisory control system is without heating function, the bad working environments wind energy turbine set such as low temperature and plateau cannot be applied in, its narrow application range.Two, this supervisory control system is by hind computation machine monitoring, but in Large Scale Wind Farm Integration, the quantity of box type transformer is a lot, and every platform box type transformer is all equipped with background computer, and cause the cost of supervisory control system high, efficiency is low, practical not.Three, this Design of Monitoring and Control System is complicated, and level of integrated system is low, and the system expandability and operational reliability are not high.Four, this system passive fan-out capability is weak, cannot meet the control overflow of higher level.Five, this supervisory control system lacks interactive software, execute-in-place, monitoring inconvenience.Six, this supervisory control system is without network savvy, can only monitor for separate unit blower fan, the case of whole wind field can not be become running status and reach Central Control Room, in essence and the automation requirement of unrealized intelligent grid.
Summary of the invention
The object of the invention is to overcome the above-mentioned problems in the prior art, a kind of supervisory control system for wind power generation box type transformer is provided, the present invention can not only real time monitoring and control the running status of box type transformer in wind generator system, can also process fault or problem that box type transformer occurs according to the information gathered in time.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of supervisory control system for wind power generation box type transformer, it is characterized in that: comprise master controller, PLC and thermal resistance input isolated gate, described PLC comprises PLC module, communication module, supply module, DO module and DI module, described PLC is connected with master controller by communication module, described DI module is connected for collection signal by signal transducer with box type transformer, described DO module is connected for controlling box type transformer by relay with box type transformer, the input of described thermal resistance input isolated gate is connected with box type transformer by temperature sensor, output and DI model calling.
Described DO module comprises 2 DO access points, and described DO access point is connected with box type transformer by relay, and DO access point coordinates the switch controlling box type transformer with relay; Described DI module comprises 19 DI access points, and described DI access point is connected with box type transformer by signal transducer.
Described DO module also comprises 2 DO access points for subsequent use.
Described supervisory control system also comprises casing, and described PLC and thermal resistance input isolated gate are all fixed in casing.
Be provided with temperature detect switch (TDS) and heater in described casing, temperature detect switch (TDS) and heater coordinate the working temperature regulating supervisory control system.
Employing the invention has the advantages that:
One, in the present invention, the analog quantity can run box type transformer by DI module and signal transducer and digital quantity signal are gathered, and realize conduct monitoring at all levels; Can by PLC module the signal of DI module acquires be analyzed, be processed, and analysis, process structure are uploaded to master controller, realize the real time monitoring to box type transformer running status; Remote operation and control can be carried out to box type transformer by DO module and relay.Above-mentioned module be combined with each other and really can not only realize intelligent surveillance and control box type transformer, can also process fault or the problem of box type transformer generation in time, can either ensure the stable operation of electrical network, can greatly reduce human input cost again.The advantages such as the instruction of compact conformation, easy for installation, good looking appearance and state is complete that adopt PLC to have on hardware, software has programme convenient and execution efficiency advantages of higher, there is the advantage of high reliability, high scalability and high stability in actual use, the passive fan-out capability of whole supervisory control system is strengthened, the control overflow of higher level can be met.Increase thermal resistance input isolated gate and the PT100 of box type transformer input RTD signal can be converted to AI signal, which save the temperature-measuring module of PLC module, be conducive to cost-saving.Compared with the prior art being representative with China Patent No. " 201220732488.3 ", this supervisory control system not only has that simplicity of design, level of integrated system are high, the system expandability and the high advantage of operational reliability, man-machine interaction and each box type transformer networking monitoring can also be realized, and then realize the automatically-monitored of intelligent grid.
Two, in the present invention, described DI module comprises 19 DI access points, and described DO module comprises 2 DO access points, and DO access point coordinates the switch controlling box type transformer with relay.Wherein, 19 DI access points can gather the running status of box type transformer comprehensively, DO access point coordinates the information that can collect according to DI access point to control box type transformer in real time with relay, can be effective guarantee power grid security run reliably.
Three, in the present invention, described DO module also comprises 2 DO access points for subsequent use, and advance reservation DO access point, is conducive to later maintenance.
Four, in the present invention, external interference factor can be reduced by casing, effectively can not only ensure the stable operation of each parts in supervisory control system, also help the useful life extending supervisory control system.
Five, in the present invention, temperature detect switch (TDS) and heater is provided with in described casing, when temperature in casing is lower than temperature detect switch (TDS) preset lower limit, heater works, when temperature in casing exceedes capping value, heater quits work, and temperature detect switch (TDS) and heater coordinate the temperature regulated in supervisory control system, ensure that it normally can run under the adverse circumstances such as low temperature or high temperature, be conducive to the useful life extending supervisory control system.
Accompanying drawing explanation
Fig. 1 is operation principle schematic diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the control schematic diagram of repeat circuit of the present invention;
Fig. 4 is the temperature control heating schematic diagram in the present invention;
Fig. 5 is networking schematic diagram of the present invention.
Embodiment
A kind of supervisory control system for wind power generation box type transformer, comprise casing, described casing internal fixtion is provided with master controller, PLC and thermal resistance input isolated gate, described PLC comprises PLC module, communication module, supply module, DO module and DI module, described PLC is as key control unit, be connected with outside 24VDC power module respectively by supply module, be connected with master controller with by communication module, PLC is for uploading the real-time running state information of box type transformer, and control box type transformer according to the information remote obtained.Wherein, compatible Modbus TC/IP and OPC of communication module two kinds of communications protocol, can, for different networking situations, select different communications protocol and master controller to carry out communication.Described DO module comprises at least one DO access point, and described DO access point is connected with box type transformer by relay; Described DI module comprises multiple DI access point, and described DI access point is connected with box type transformer by signal transducer.Wherein, the analog quantity that PLC is run box type transformer by DI access point and signal transducer and digital quantity signal gather, analyze by the signal of PLC module to the collection of DI access point, process, and analysis, process structure are uploaded to master controller, realize the real time monitoring to box type transformer running status; After PLC receives the order of master controller, carried out the disconnection of control relay contact by the output of DO access point with closed, thus realize remote operation and the control of box type transformer.The input of described thermal resistance input isolated gate is connected with box type transformer by temperature sensor, output and DI model calling, adopt thermal resistance input isolated gate the PT100 of box type transformer can be inputted RTD signal and be converted to AI signal, which save the temperature-measuring module of PLC module, reduce cost, make space layout in casing more rationally attractive in appearance simultaneously.
Further, described relay adopts the passive relay that load capacity is strong, and the output loading capability of relay is 220VAC/16A,
In the present invention, described DO access point is 4, and wherein 2 DO access points are as subsequent use, and described DI access point is 19.
In the present invention, described supervisory control system also comprises casing, and described PLC and thermal resistance input isolated gate are all fixed in casing, arrange casing and corrode each parts in order to prevent introduced contaminants, form better protection to each parts.
Further, temperature detect switch (TDS) and heater is provided with in described casing, described temperature detect switch (TDS) and heater are directly connected with the power supply in access casing, when this device uses in the low temperature or high temperature wind energy turbine set of bad environments, temperature detect switch (TDS) and heater coordinate the working temperature regulating supervisory control system, ensure that whole supervisory control system can run well.
Further, described lower box is provided with the binding post for line.
The present invention both can realize the monitoring to separate unit box type transformer, also can networking realize multiple box type transformer while monitoring.
In the present invention, described PLC module is provided with PC special purpose interface, field adjustable personnel are connected with native system by carrying PC, both convenient and practical, can reduce again the consumption of background computer.
Claims (5)
1. the supervisory control system for wind power generation box type transformer, it is characterized in that: comprise master controller, PLC and thermal resistance input isolated gate, described PLC comprises PLC module, communication module, supply module, DO module and DI module, described PLC is connected with master controller by communication module, described DI module is connected for collection signal by signal transducer with box type transformer, described DO module is connected for controlling box type transformer by relay with box type transformer, the input of described thermal resistance input isolated gate is connected with box type transformer by temperature sensor, output and DI model calling.
2. a kind of supervisory control system for wind power generation box type transformer as claimed in claim 1, it is characterized in that: described DO module comprises 2 DO access points, described DO access point is connected with box type transformer by relay, and DO access point coordinates the switch controlling box type transformer with relay; Described DI module comprises 19 DI access points, and described DI access point is connected with box type transformer by signal transducer.
3. a kind of supervisory control system for wind power generation box type transformer as claimed in claim 2, is characterized in that: described DO module also comprises 2 DO access points for subsequent use.
4. a kind of supervisory control system for wind power generation box type transformer as claimed in claim 1, is characterized in that: described supervisory control system also comprises casing, and described PLC and thermal resistance input isolated gate are all fixed in casing.
5. a kind of supervisory control system for wind power generation box type transformer as claimed in claim 4, is characterized in that: be provided with temperature detect switch (TDS) and heater in described casing, and temperature detect switch (TDS) and heater coordinate the working temperature regulating supervisory control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410542173.6A CN104242468B (en) | 2014-10-15 | 2014-10-15 | Monitoring system for wind power generation tank type transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410542173.6A CN104242468B (en) | 2014-10-15 | 2014-10-15 | Monitoring system for wind power generation tank type transformer |
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| CN104242468A true CN104242468A (en) | 2014-12-24 |
| CN104242468B CN104242468B (en) | 2017-02-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202268749U (en) * | 2011-10-28 | 2012-06-06 | 西安远征智能软件有限公司 | Intelligent security monitoring device for box transformer substation |
| CN202602375U (en) * | 2012-05-08 | 2012-12-12 | 安徽泰特斯电力技术有限公司 | Wind power generation box type transformer cloud terminal |
| CN103178618A (en) * | 2013-03-29 | 2013-06-26 | 安徽泰特斯电力技术有限公司 | Integrated monitoring terminal for wind-electricity power generation unit |
| CN203251140U (en) * | 2012-11-26 | 2013-10-23 | 安徽泰特斯电力技术有限公司 | Monitoring system of photovoltaic power generation unit |
-
2014
- 2014-10-15 CN CN201410542173.6A patent/CN104242468B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202268749U (en) * | 2011-10-28 | 2012-06-06 | 西安远征智能软件有限公司 | Intelligent security monitoring device for box transformer substation |
| CN202602375U (en) * | 2012-05-08 | 2012-12-12 | 安徽泰特斯电力技术有限公司 | Wind power generation box type transformer cloud terminal |
| CN203251140U (en) * | 2012-11-26 | 2013-10-23 | 安徽泰特斯电力技术有限公司 | Monitoring system of photovoltaic power generation unit |
| CN103178618A (en) * | 2013-03-29 | 2013-06-26 | 安徽泰特斯电力技术有限公司 | Integrated monitoring terminal for wind-electricity power generation unit |
Non-Patent Citations (1)
| Title |
|---|
| 严宏强，程钧培，都兴有等主编: "《中国电气工程大典 第4卷 火力发电工程 上》", 31 May 2009 * |
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Address after: 618000 No. 18, Third Section of Lushan South Road, Deyang City, Sichuan Province Patentee after: Dongfang Electric Automatic Control Engineering Co., Ltd. Address before: 618099 No. 18, Section 3, Lushan South Road, Deyang City, Sichuan Province Patentee before: Sichuan Orient Electric Automatic Control Engineering Co., Ltd. |