CN206668460U - A kind of small power station's unit saves integrated control device - Google Patents
A kind of small power station's unit saves integrated control device Download PDFInfo
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- CN206668460U CN206668460U CN201720360832.3U CN201720360832U CN206668460U CN 206668460 U CN206668460 U CN 206668460U CN 201720360832 U CN201720360832 U CN 201720360832U CN 206668460 U CN206668460 U CN 206668460U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a kind of small power station's unit to save integrated control device, including master station, communication unit and field unit, described field unit output signal are connected by cable with communication unit input signal interface；Communication unit is interconnected by network interface and master station, solving most small power station's unit at present is built in eighties of last century, its capacity is smaller, is restricted by technical merit at that time, and its unit control system lags far behind the state-of-the-art problem of current water power computer supervisory control system.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering equipment and fluid machinery technical field, and in particular to a kind of small power station's machine
Group energy-conservation composite control apparatus.
Background technology
The kilowatt hour of China's water power theory annual electricity generating capacity 6000000000000, technology can development capacity and economy can development capacity be respectively
5.42 hundred million kilowatts and 4.02 hundred million kilowatts, resource contains the first in the world.It is overall but at present, China's HYDROELECTRIC ENERGY utilization rate is also relatively low
For utilization rate still less than 40%, exploitation and Utilization prospects are still very wide.And most small power station's unit is all built at present
Located at eighties of last century, its capacity is smaller, is restricted by technical merit at that time, its unit control system lags far behind current
The state-of-the-art of water power computer supervisory control system.With the attention to work small power station's standardized management, and information-based,
The horizontal raising of Automation Construction, small power station's unit also progressively obtain people's attention, but to small power station's operation information, water power calculation
It is almost blank that the efficiency such as rate service data, which is controlled,.
Small power station's control system is mainly controlled by artificial experience at present, efficiency optimization control is carried out to Hydropower Unit
Studies in China mechanism and producer processed it is also proposed some solutions, but all in conceptual phase, unit efficiency are measured and controlled
In the market also has portioned product, but because its function is single, platform compatibility is poor, communication interface and agreement disunity, only
Unit efficiency test function is realized, not the whole control process for instructing unit truly, and live unit control at present
Control equipment only has the control function of itself, not in view of remote control, coordinates control, remote maintenance and remote diagnosis etc.
Function, while existing producer most seeks economic benefit, and itself single Hydropower Unit control is only met to current regulatory function
Professional standard, its reliability and accuracy are comparatively all than relatively low.
Utility model content
In order to solve the problems, such as that currently available technology is present, a set of small power station unit energy-conservation synthesis of this patent utility model
Change control device.The present apparatus include on-site data gathering module, on-site data processing module, local communication data acquisition module,
Data communication uploading module, master station data management module, major control data memory module, master station data analysis module.
The technical solution of the utility model is：A kind of small power station's unit saves integrated control device, including master station, logical
News unit and field unit, described field unit output signal are connected by cable with communication unit input signal interface；It is logical
Unit is interrogated to interconnect by network interface and master station.
Described field unit includes spot sensor and control system.
Described spot sensor includes unit flow sensor, active power sensor, upper pond level sensor, downstream
Level sensor, generating unit speed sensor and guide vane opening sensor；Described unit flow sensor, active power sensing
Device, upper pond level sensor, level of tail water sensor, generating unit speed sensor and guide vane opening sensor output signal and communication
The data acquisition module connection of unit.
Described control system includes runout system, regimen system and monitoring system；Described runout system, regimen system
And monitoring system and the communication acquisition module of communication unit connect.
Described communication unit includes data acquisition module, communication acquisition module, data processing module and data and uploads mould
Block, described data acquisition module, communication acquisition module, data processing module and data uploading module pass through network interconnection.
Described master station includes management module, memory module and analysis module, management module, memory module and analysis mould
Block passes through network interconnection.
Described master station output signal is connected with monitoring system.
On-site data gathering module major function be by front end sensors, it is active power to small power station's unit, idle
The machines such as power, Weng'an biota, spiral case tail water pressure, guide vane opening, machine class frequency, flow, upper pond level and the level of tail water
The physical quantity data of group actual motion are acquired.Collecting unit is used and ground based on PC104 Embedded A T96 bus systems
Hair design, realizes the collection to spot sensor physical quantity.
On-site data processing module major function is to complete filtering to gathered data, carry out digital-to-analogue conversion, parameter calibration.
Filtering realized by analog circuit, to signal outside noise signal be removed；Analog-to-digital conversion is entered by chip AD7656
Row is completed；After obtaining respective channel data signal, different zero graduation points and full scale point is set to carry out by house software
Demarcation.
Local communication data acquisition module major function is that unit part service data is acquired by communication modes,
Device can easily with Power Plant Monitoring, MIS of power house system, Style Product Information Management System, efficiency test and analysis center or
The other measurement apparatus of person carry out two-way data communication, to realize data sharing.
Data communication uploading module major function is that the Site for Unit of existing ground acquisition module and communication module collection is run
Data are sent to master station and are used to analyze, calculate, store etc. to handle.
Master station data management module major function completes fusion, management and the issue of real time data, current to unit
Running status synchronizes the function of monitoring and display, and it is with various forms such as numerical value, curve, charts, by the various shapes of unit
State analyze data, by multiple different webpage representations to user.
Major control data memory module can support the quick, data of concurrent access for what the collection of a large amount of high density datas provided
Storehouse system, feature are that access speed is fast, and a large amount of real time datas are stored in real-time data storehouse.Master station data analysis module
It is that the measurement result of small power station's unit is fitted by gathered data first, measurement in real time is gathered according to efficiency test platform
Unit efficiency and the efficiency data, unit load, head, the data such as guide vane opening that gather offline can fit unit
Overall efficiency characteristic curve.It is the distribution for carrying out optimal power in fact, it is optimal to there is distribution of work control to be with Efficiency Fit analysis system
Build what is come based on system, by efficiency optimization so as to reaching the purpose of the energy efficiency of small power station's unit.
Brief description of the drawings
Fig. 1 is small power station's unit energy-conservation integrated control apparatus structure block diagram of the present utility model.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with the accompanying drawings.
As Fig. 1 show hydroelectric integration control device structured flowchart, small power station's unit energy-conservation integrated control device bag
Include on-site data gathering module, on-site data processing module, local communication data acquisition module, data communication uploading module and master
Control station.
On-site data gathering module major function is by front end sensors, to the physical quantity of small power station's unit actual motion
It is acquired.Collecting unit uses carries out R ＆ D design, wherein collecting part mainboard based on PC104 Embedded A T96 bus systems
Use for low-power consumption PC104, using 6U industry subrack structures, be divided into front and rear two layers, before for signal acquisition and processing board,
Including：System power supply board, PC104 bus support plates board, signal acquisition board etc. are formed；Rear board is various computer interfaces
And sensor signal interface, realize the collection to spot sensor physical quantity.
On-site data processing module major function is to complete filtering to gathered data, carry out digital-to-analogue conversion, parameter calibration.
The filtering of data is using the analog filter of pure analog circuit, and its feature is not needing crystal oscillator module, while power consumption is relatively low, electricity
The μ A of source power consumption 400, patch chip is encapsulated using SOIC, the filter order with 8 ranks.By in data processing module after filtering
Digital-to-analogue conversion is acquired the digitlization conversion of signal, and analog-to-digital conversion employs AD7656 chips, and this chip has 6 passages, is
16bit Approach by inchmeal (SAR) type ADC, it has 4 LSBS INL of maximum and 250kSPS sample rate is reached per passage, and
A 2.5V internal reference voltage source and reference buffer are included in piece.Parameter calibration is different by setting by software calibration
Zero graduation point and full scale click through rower determine.
Local communication data acquisition module mainly obtains existing every service data of unit by communication function.Pass through
Communicated with monitoring system obtain unit on lead, under lead, each watt of temperature, unit oil temperature, generator unit temperature etc. that water is led；By with
Condition monitoring system communication obtains the parameters such as unit throw, vibration, pressure fluctuation, air gap, partial discharge amount；By leading to regimen system
Letter obtains the parameters such as reservoir upper pond level, tailwater level and rainfall.The present apparatus provide communication modes have RS232/RS485, with
Too net and other communication modes.The supported communication protocols of RS232/RS485 include：CDT (circulation telemechanical) stipulations；
NC2000 external equipments transmit stipulations；H9000 serial communication stipulations；H201 main transformer oil chromatographies on-Line Monitor Device communication rule
About；MGA2000 main transformer oil chromatography monitoring device communication protocols etc.；Ethernet can support Modbus-TCP and customized TCP/IP
Agreement.
Data communication uploading module major function is that the Site for Unit of existing ground acquisition module and communication module collection is run
Data are sent to master station and are used to analyze, calculate, store etc. to handle.The data communication uploading module of the present apparatus mainly passes through ether
Net is attached, and is mainly carried out data transmission by Modbus-TCP agreements.
During experiment, following steps：
The unit parameter collected is sent to master station by the first step, field unit by communication unit；
Second step, master station data analysis module carries out unit efficiency according to the unit parameter collected, efficiency curve is intended
Close, optimum efficiency and sharing of load calculate；
3rd step, according to step（Two）Digital simulation go out the overall efficiency characteristic curve of unit；
4th step, found using intelligent approximating method unit iso-efficiency curve, etc. head diagram, etc. opening curve；
5th step, the operation power that each unit is calculated by optimum control, are then forwarded to Field Monitoring System and enter
The operation of row Optimal Load, so as to realize full brand-name computer group optimum load dispatch.
Claims (7)
1. a kind of small power station's unit saves integrated control device, including master station, communication unit and field unit, its feature exist
In：Described field unit output signal is connected by cable with communication unit input signal interface；Communication unit passes through network
Interface interconnects with master station.
A kind of 2. small power station's unit energy-conservation integrated control device according to claim 1, it is characterised in that：Described shows
Field unit includes spot sensor and control system.
A kind of 3. small power station's unit energy-conservation integrated control device according to claim 2, it is characterised in that：Described shows
Field sensor includes unit flow sensor, active power sensor, upper pond level sensor, level of tail water sensor, unit
Speed probe and guide vane opening sensor；Described unit flow sensor, active power sensor, upper pond level sensing
The data acquisition of device, level of tail water sensor, generating unit speed sensor and guide vane opening sensor output signal and communication unit
Module connects.
A kind of 4. small power station's unit energy-conservation integrated control device according to claim 2, it is characterised in that：Described control
System processed includes runout system, regimen system and monitoring system；Described runout system, regimen system and monitoring system is with leading to
Interrogate the communication acquisition module connection of unit.
A kind of 5. small power station's unit energy-conservation integrated control device according to claim 1, it is characterised in that：Described is logical
News unit includes data acquisition module, communication acquisition module, data processing module and data uploading module, described data acquisition
Module, communication acquisition module, data processing module and data uploading module pass through network interconnection.
A kind of 6. small power station's unit energy-conservation integrated control device according to claim 1, it is characterised in that：Described master
Control station includes management module, memory module and analysis module, and management module, memory module and analysis module pass through network interconnection.
A kind of 7. small power station's unit energy-conservation integrated control device according to claim 1, it is characterised in that：Described master
Control station output signal is connected with monitoring system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720360832.3U CN206668460U (en) | 2017-04-07 | 2017-04-07 | A kind of small power station's unit saves integrated control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837676A (en) * | 2017-04-07 | 2017-06-13 | 贵州电网有限责任公司电力科学研究院 | A kind of small power station's unit energy-conservation integrated control device and control method |
| CN107939590A (en) * | 2017-12-04 | 2018-04-20 | 重庆新世杰电气股份有限公司 | A kind of control method by water level power generation |
| CN108802615A (en) * | 2018-08-01 | 2018-11-13 | 贵州电网有限责任公司 | Hydro turbine governor static properties tests system and its test method |
-
2017
- 2017-04-07 CN CN201720360832.3U patent/CN206668460U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837676A (en) * | 2017-04-07 | 2017-06-13 | 贵州电网有限责任公司电力科学研究院 | A kind of small power station's unit energy-conservation integrated control device and control method |
| CN107939590A (en) * | 2017-12-04 | 2018-04-20 | 重庆新世杰电气股份有限公司 | A kind of control method by water level power generation |
| CN107939590B (en) * | 2017-12-04 | 2021-02-05 | 重庆新世杰电气股份有限公司 | Control method for generating power according to water level |
| CN108802615A (en) * | 2018-08-01 | 2018-11-13 | 贵州电网有限责任公司 | Hydro turbine governor static properties tests system and its test method |
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