CN201749353U - Entirely unmanned hydropower station LCU monitoring device - Google Patents
Entirely unmanned hydropower station LCU monitoring device Download PDFInfo
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- CN201749353U CN201749353U CN201020267146XU CN201020267146U CN201749353U CN 201749353 U CN201749353 U CN 201749353U CN 201020267146X U CN201020267146X U CN 201020267146XU CN 201020267146 U CN201020267146 U CN 201020267146U CN 201749353 U CN201749353 U CN 201749353U
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Abstract
The utility model discloses an entirely unmanned hydropower station LCU monitoring device which comprises PLC, a touch screen, a comprehensive alternating current sampling device, an electric power transmitter, an industrial Ethemet switch, a digital video camera, a rotation speed signal device, a temperature polling device, an automatic semi-synchronizing device, an outlet isolating relay, a communication managing device, a GPS module and a switching value input module, wherein the PLC is connected with the touch screen, the comprehensive alternating current sampling device, the electric power transmitter, the industrial Ethemet switch, the digital video camera, the rotation speed signal device, the temperature polling device, the automatic semi-synchronizing device, the exit isolating relay, and the communication managing device, and the PLC is also connected with the GPS module and the switching value input module. The PLC comprises a power module in redundancy setting, a CPU module, a network module, a switching value input module, a switching value output model, an analog quantity input module, an analog quantity output module, and an RTD module. The power module, the CPU module, and the network module are arranged in a redundant way. The utility model has the advantages of rapid speed, flexible combination, strong redundancy and strong anti-interference, can adapt to the hostile environment and meets the requirements of the unattended hydropower station.
Description
Technical field
The utility model relates to a kind of complete unattended power station LCU supervising device based on high reliability, stability, is used to finish the water wheels unit control of unattended power station, protection, water wheels unit auxiliaries, the control of switchyard equipment etc.
Background technology
Existing power station LCU (Local Control Unit) screen; comprise Programmable Logic Controller PLC (Programmer Logic Controller); wherein PLC mostly is small-sized type; its CPU processing speed is slow; the few system extension function of functional module is poor; particularly do not consider unwatched characteristics fully in the associated external equipment disposition; the switch input signal that enters PLC does not carry out photoelectricity isolates; quarantine measures are not taked in the analog quantity input; thereby cause the PLC module because external fault damages; in addition to important control; guard signal is not considered redundant configuration, has a strong impact on the normal operation in power station.
The PLC custom of existing power station LCU supervising device adopts single supply, single CPU, single network structure, and when one or more the breaking down in these important module of PLC, the function of whole LCU goes wrong, and loses the supervisory function bit to controlling object.
Do not adopt redundant configuration for important protection, control input quantity; and when the program design of PLC, do not consider the active and standby switching problem of redundant input quantity; when the master is broken down with input quantity, system will lose the protection to controlling object such as water wheels units, even lose its control.
LCU does not adopt the data storage design, and data are stored fully in the distance, when communication network goes wrong, can't preserve data, particularly significant data.
Pass through the single communication port (Ethernet) of fiber plant with Surveillance center's (comprising a terrain and a distant place), when passage goes wrong, Surveillance center can't carry out exchanges data with LCU.
The utility model content
The purpose of this utility model is to provide a kind of complete unattended power station LCU supervising device, to realize high reliability, highly redundant LCU control, defencive function.This utility model has that processing speed is fast, integrated functionality is many, the well separation of strong and weak electric energy, strong anti-interference performance, can be adapted to rugged surroundings; But overall process record trouble data, fault data have a power failure and do not lose.
The technical solution of the utility model is: a kind of complete unattended power station LCU supervising device comprises PLC and the touch-screen that is attached thereto, exchanges comprehensively sampling device, power transducer, Industrial Ethernet switch, digital video camcorder, rotating speed signal device, temperature patrol inspection device, automatic sub-synchronous device, outlet disconnecting relay and communication manager and GPRS module that is connected with communication manager and wireless frequency expansion module; Wherein PLC comprises redundant power module, CPU module and the mixed-media network modules mixed-media that is provided with, and switching input module, switching value output module, analog quantity load module, analog output module and RTD module; Described PLC is connected with rotating speed signal device and temperature patrol inspection device respectively by its switch inside amount load module; Described switching value output module is connected with the outlet disconnecting relay; Described PLC by the analog quantity load module with power transducer and be connected; Described PLC also is connected with interchange comprehensively sampling device by RS485; Described PLC is connected with digital video camcorder through mixed-media network modules mixed-media and Industrial Ethernet switch; Described touch-screen is connected with remote monitoring center through communication manager.
As preferred version, it is the OMRON CS1D series of redundant configuration that described PLC adopts two CPU, dual power supply, dual network module.
What further, described touch-screen adopted is 16 look TFT touch-screens.
Further, the switching input module among the described PLC, switching value output module, analog quantity load module and analog output module all are connected with disconnecting relay.
The course of work and the principle of complete unattended power station described in the utility model LCU supervising device are as described below:
Described PLC is the core control section of LCU supervising device; it is by the switching value input of PLC; the analog quantity input; RTD module (Resistance Temperature Detector; the resistance temperature detecting module) receives from outside and inner signal; also by communication port and outside long distance control system and internal unit received signal; after the routine processes in the suitable unattended power station by special exploitation; by the switching value output module; output such as analog output module control signal is isolated the back to external unit and internal unit through the outlet disconnecting relay, with controlling object such as control and protection water wheels units.Built-in high power capacity lithium battery among the described PLC can realize that power down keeps data, and the assurance data are not lost.
Digital video camera in the described LCU supervising device directly generates digital video signal, by the Industrial Ethernet interface video data of gathering is uploaded to communication manager, carries out view data and handle in communication manager.Described digital video camera can also receive the equipment of needs being monitored from the order of communication manager and PLC and carry out video data acquiring.Communication manager transmits monitoring data by Industrial Ethernet (optical fiber), GPRS, wireless frequency expansion interface to remote monitoring center, and the control command at response monitoring center.Communication manager can insert the Internet network by modes such as GPRS, ADSL, uses the user to pass through the IE visit data in any corner in the world.
RTD module among the described PLC is used to gather the important temperature amount that the water wheels unit need realize protecting shutdown, guarantees collection, protection precision and the speed of temperature amount.
Described TFT touch-screen can be realized supervision, data preservation and assign the control command function as terrain data presentation, storage and operation interface.This touch-screen can provide multiple communication modes such as comprising RS232, RS485, RS422 serial ports, Ethernet, Profibus-DP, DeviceNet fieldbus, all communication functions all adopt to isolate and connect, network all adopts redundant network and communication unit, even a certain circuit disconnects or a certain communication unit fault in the network, communication still can continue.
Communication manager is the core communications portion of LCU, need finish following function: 1, be responsible for LCU supervising device controlling object and remove and the communicating by letter and protocol conversion of other equipment of plc communication; 2, having video data handles; 3, high capacity storage can be in a large amount of historical data of LCU stored, and supports USB flash disk, CF card storage medium stores data; 4, provide fiber optic Ethernet interface, GPRS interface, wireless frequency expansion interface and remote monitoring center to carry out exchanges data; 5, need finish the function of user by Internet visit LCU data.
Ac sampling device be responsible for to be gathered the electric parameters of genset, and the RS485 communication interface with plc communication is provided.
Power transducer is converted to PLC with the AC signal of genset and can gathers the standard dc current signal (4～20mA) insert the AD sampling modules of PLC by analog quantity isolator group.
Rotating speed signal device is converted to the rotating speed of genset by gathering the generator residual voltage, is linked into the switching input module of PLC in each rotating speed percentage point (0%, 35%, 80%, 95%, 140%) output switching value of unit.
The temperature patrol inspection device is converted to temperature information with the thermal resistance signal of outside, and the output switching value is to the PLC switching input module when temperature value reaches warning, accident value.
The device that automatic sub-synchronous device is connected to the grid as generator, whether PLC works by switching value output module control automatic sub-synchronous device.
The Industrial Ethernet switch connects by star-like or looped network mode, is responsible for the connection and the exchanges data of ethernet communication network communication.
The GPRS module is connected with communication manager by serial ports, is responsible for communicating by letter and Internet information issue (under the part communication pattern) with remote monitoring center.
The wireless frequency expansion module is connected with communication manager by Ethernet, be responsible for communicating by letter with remote monitoring center (using under the communication).
When one of them module of dual power supply module among the PLC breaks down, the overall operation of LCU is not produced any influence; When operation CPU module went wrong, the spare CPU module switched to running status immediately, thereby the assurance system continues operation; Above fault all will produce the alarm operations staff, and the module of redundant configuration can guarantee the non-stop-machine situation of genset in LCU all modules of online replacing in service, carries out fault and gets rid of.
In sum, based on the described complete unattended power station LCU supervising device of said structure compared with prior art, possess the high-end hot backup redundancy CPU that following characteristics: PLC adopts high reliability, the CPU processing speed is fast, extendability is strong, communication function is powerful; LCU terrain communication manager has mass data storage, rich communication interface, high-speed video data processing capacity; All enter the input signal of LCU and all adopt quarantine measures from the control signal of LCU output, improve the anti-interference of LCU supervising device; Important control guard signal adopts redundant configuration, the reliable and secure operation of assurance system.
The utility model also can be applied to aspects such as thermoelectricity, thermoelectricity, pumping plant, key water control project by the PLC program is provided with simultaneously applicable to complete unattended power station.
Description of drawings
Fig. 1 is the connection diagram of described device of embodiment and remote monitoring center;
Fig. 2 is a PLC switching input module photoelectricity isolation view;
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Present embodiment provides a kind of complete unattended power station LCU supervising device, comprises PLC and the touch-screen that is attached thereto, exchanges comprehensively sampling device, power transducer, Industrial Ethernet switch, digital video camcorder, rotating speed signal device, temperature patrol inspection device, automatic sub-synchronous device, outlet disconnecting relay and communication manager and GPRS module that is connected with communication manager and wireless frequency expansion module; Wherein PLC comprises redundant power module, CPU module and the mixed-media network modules mixed-media that is provided with, and switching input module, switching value output module, analog quantity load module, analog output module and RTD module; Described PLC is connected with rotating speed signal device, temperature patrol inspection device and LCU supervising device other equipment (for example: water intaking valve, speed regulator, excitation, protective relaying device) outward respectively by its switch inside amount load module; Described switching value output module is connected with the outlet disconnecting relay; Described PLC is connected with power transducer and LCU supervising device other equipment (for example: water intaking valve, speed regulator, excitation) outward by the analog quantity load module; Described analog output module calculates the outside equipment of standard dc signal (4～20mA ,-10V～10V etc.) control of variation according to program by output.Described PLC also is connected with interchange comprehensively sampling device by RS485; Described PLC is connected with digital video camcorder through mixed-media network modules mixed-media and Industrial Ethernet switch; Described touch-screen is connected with remote monitoring center by communication manager.
Described PLC is the core control section of LCU supervising device, and described PLC receives from the signal of rotating speed signal device and temperature patrol inspection and the switching value signal of external unit by input module switch.PLC receives from the standard dc current signal behind the ac signal of power transducer conversion power generation unit by the analog quantity load module, and communicate to connect the genset ac signal that exchanges the comprehensively sampling instrument to collect by RS485, realize Redundant Control unit load control.
Described communication manager is responsible for the LCU supervising device and is communicated with the peripheral equipment that removes direct and plc communication, and carry out exchanges data by one or more modes in Ethernet, GPRS, the wireless frequency expansion and remote monitoring center, improve system communication speed and reliability greatly, has the video data processing capacity simultaneously, and can carry out the storage of high capacity significant data by CF card, USB flash disk medium, prepare against when Surveillance center's data go wrong in the distance, not obliterated data.
Of the present utility model each formed module and all can be adopted existing module to realize, so be not described in detail.In the present embodiment, concrete module is selected as follows as shown in Figure 1:
1, redundant heat is equipped with PLC:
Can select OMRON (Omron) CS1D series, below be configured to use this series of PLC
Dual power supply, two CPU, dual network module need to select following model module at least:
1) CPU frame: CS1D-BC052
2) four of power module: CS1D-PD024
3) CPU module: CS1D-CPU65H is two
4) two of Ethernet: CS1W-ETN21 or CS1D-ETN21D
5) one of serial communication: CS1W-SCU31
6) IO frame: CS1D-BI092
7) frame stube cable: CS1W-CN713
8) switching input module: CS1W-ID231
9) switching value output module: CS1W-OD231
10) analog quantity load module: CS1W-AD801-V1
11)RTD：CS1W-PTS56
2,16 look TFT touch-screens: described touch-screen adopts high resolving power, very color TFT, large storage capacity (can pass through USB flash disk, SD card etc.) extension storage space, as the terrain operation supervise and control unit of LCU supervising device.The concrete model that adopts of present embodiment is Taiwan prestige synthetic fibre MT6100i
3, communication manager: HZ300 communication manager
4, exchange comprehensively sampling device: HZM96A
5, power transducer:
1) power transducer: YOD-PQ3-V1-A2-P3-O3
2) voltage transmitter: YOD-U-V1-P3-O4
6, report telltale: TDS-4338-26600[140%]
7, temperature patrol inspection device:
WP-D832-81-23-HH-T (Pt100/Cu50, DC220V, band communication)
8, automatic sub-synchronous device: DZZB-4 type
9, outlet disconnecting relay.
In the foregoing description, PLC selects for use redundant heat to be equipped with the high-performance configuration, important module such as power module, CPU module, mixed-media network modules mixed-media have all adopted redundant configuration, of the same type one of them goes wrong when these redundant modules, and the equipment that do not influence normally moves, and produces warning, the prompting user checks, all modules of this PLC are supported online replacing, can carry out at powering-off state not, do not influence equipment operation fully.Wherein power unit adopts the AC and DC dual power supply, guarantees the system power supply supply.Whole LCU supervising device and communicating by letter of remote monitoring center are put forward the binary channels of fiber optic Ethernet, GPRS, wireless frequency expansion mode, guarantee the communication reliability of total system.
The foregoing description illustration only is a kind of preferred embodiment, can not be as the foundation that limits the utility model protection domain.Only technical characterictic described in the utility model is simply replaced or simple combination, and the technical scheme that does not break away from the utility model connotation all should belong within the scope of the required protection of the utility model.
Claims (4)
1. complete unattended power station LCU supervising device, it is characterized in that, comprise PLC and the touch-screen that is attached thereto, exchange comprehensively sampling device, power transducer, Industrial Ethernet switch, digital video camcorder, rotating speed signal device, temperature patrol inspection device, automatic sub-synchronous device, outlet disconnecting relay and communication manager and GPRS module that is connected with communication manager and wireless frequency expansion module; Wherein PLC comprises redundant power module, CPU module and the mixed-media network modules mixed-media that is provided with, and switching input module, switching value output module, analog quantity load module, analog output module and RTD module; Described PLC is connected with rotating speed signal device and temperature patrol inspection device respectively by its switch inside amount load module; Described switching value output module is connected with the outlet disconnecting relay; Described PLC is connected with power transducer by the analog quantity load module; Described PLC also is connected with interchange comprehensively sampling device by the RS485 port; Described PLC is connected with digital video camcorder through mixed-media network modules mixed-media and Industrial Ethernet switch; Described touch-screen is connected with remote monitoring center through communication manager.
2. according to the described complete unattended power station of claim 1 LCU supervising device, it is characterized in that it is the OMRON CS1D series of redundant configuration that described PLC adopts two CPU, dual power supply, dual network module.
3. according to claim 1 or 2 described complete unattended power station LCU supervising devices, it is characterized in that what described touch-screen adopted is 16 look TFT touch-screens.
4. according to claim 1 or 2 described complete unattended power station LCU supervising devices, it is characterized in that the switching input module among the described PLC, switching value output module, analog quantity load module and analog output module all are connected with disconnecting relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020267146XU CN201749353U (en) | 2010-07-22 | 2010-07-22 | Entirely unmanned hydropower station LCU monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020267146XU CN201749353U (en) | 2010-07-22 | 2010-07-22 | Entirely unmanned hydropower station LCU monitoring device |
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| Publication Number | Publication Date |
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| CN201749353U true CN201749353U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020267146XU Expired - Lifetime CN201749353U (en) | 2010-07-22 | 2010-07-22 | Entirely unmanned hydropower station LCU monitoring device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707680A (en) * | 2012-05-22 | 2012-10-03 | 李朝晖 | Omnibearing integrated coordination online monitoring system for hydro-power generating unit |
| CN102778850A (en) * | 2011-05-10 | 2012-11-14 | 株洲南车时代电气股份有限公司 | Input sampling device and method thereof |
| CN104503417A (en) * | 2015-01-13 | 2015-04-08 | 华自科技股份有限公司 | System for monitoring hydropower station |
| CN106354108A (en) * | 2016-08-27 | 2017-01-25 | 成都东创精英科技有限公司 | Multi-circuit processing monitoring system for hydraulic turbine temperature signals based on network technologies |
| CN107491018A (en) * | 2017-08-04 | 2017-12-19 | 中国长江电力股份有限公司 | A kind of Hydropower Unit LCU control systems and control method |
| CN107941203A (en) * | 2017-11-29 | 2018-04-20 | 张建洲 | A kind of intellectual faculties and method |
| CN109839911A (en) * | 2019-01-03 | 2019-06-04 | 贵州乌江水电开发有限责任公司索风营发电厂 | A kind of Automation of Hydropower Station system LCU for generator set control system |
| CN112825464A (en) * | 2019-11-20 | 2021-05-21 | 株洲中车时代电气股份有限公司 | Excitation control device configured with multi-network redundancy |
-
2010
- 2010-07-22 CN CN201020267146XU patent/CN201749353U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778850A (en) * | 2011-05-10 | 2012-11-14 | 株洲南车时代电气股份有限公司 | Input sampling device and method thereof |
| CN102778850B (en) * | 2011-05-10 | 2014-10-08 | 株洲南车时代电气股份有限公司 | Input sampling device and method thereof |
| CN102707680A (en) * | 2012-05-22 | 2012-10-03 | 李朝晖 | Omnibearing integrated coordination online monitoring system for hydro-power generating unit |
| CN102707680B (en) * | 2012-05-22 | 2014-04-02 | 李朝晖 | Omnibearing integrated coordination online monitoring system for hydro-power generating unit |
| CN104503417A (en) * | 2015-01-13 | 2015-04-08 | 华自科技股份有限公司 | System for monitoring hydropower station |
| CN104503417B (en) * | 2015-01-13 | 2017-06-23 | 华自科技股份有限公司 | A kind of Hydropower Station Monitor system |
| CN106354108A (en) * | 2016-08-27 | 2017-01-25 | 成都东创精英科技有限公司 | Multi-circuit processing monitoring system for hydraulic turbine temperature signals based on network technologies |
| CN107491018A (en) * | 2017-08-04 | 2017-12-19 | 中国长江电力股份有限公司 | A kind of Hydropower Unit LCU control systems and control method |
| CN107941203A (en) * | 2017-11-29 | 2018-04-20 | 张建洲 | A kind of intellectual faculties and method |
| CN109839911A (en) * | 2019-01-03 | 2019-06-04 | 贵州乌江水电开发有限责任公司索风营发电厂 | A kind of Automation of Hydropower Station system LCU for generator set control system |
| CN112825464A (en) * | 2019-11-20 | 2021-05-21 | 株洲中车时代电气股份有限公司 | Excitation control device configured with multi-network redundancy |
| CN112825464B (en) * | 2019-11-20 | 2023-03-14 | 株洲中车时代电气股份有限公司 | Excitation control device configured with multi-network redundancy |
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Effective date of registration: 20111122 Address after: 410205 Hunan province Changsha high tech Zone Lusong Lu Valley Road Patentee after: HNAC Technology Co., Ltd. Address before: 410205 Hunan province Changsha high tech Zone Lusong Lu Valley Road Patentee before: Hunan Huazi Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
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