CN203929880U - A kind of wind-powered electricity generation unit power characteristic measuring system - Google Patents
A kind of wind-powered electricity generation unit power characteristic measuring system Download PDFInfo
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- CN203929880U CN203929880U CN201420365607.5U CN201420365607U CN203929880U CN 203929880 U CN203929880 U CN 203929880U CN 201420365607 U CN201420365607 U CN 201420365607U CN 203929880 U CN203929880 U CN 203929880U
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Abstract
The utility model discloses a kind of wind-powered electricity generation unit power characteristic measuring system, comprise power-measuring device and meteorological measuring equipment, power-measuring device is all connected with remote server communication with meteorological measuring equipment, and power-measuring device comprises main power-measuring device and auxiliary power measuring equipment.Main power-measuring device comprises the first current transformer for obtaining the clean grid-connected current of wind-powered electricity generation unit first passage, the first power transducer, the first data acquisition unit and the communication module being connected with the phase voltage of wind-powered electricity generation unit first passage, auxiliary power measuring equipment comprises that the second power transducer is connected with the first data acquisition unit for obtaining the second current transformer and second power transducer of the clean grid-connected current of wind-powered electricity generation unit second channel.When wind-powered electricity generation unit is that single channel only needs main power-measuring device work while generating electricity by way of merging two or more grid systems structure, when wind-powered electricity generation unit be binary channels while generating electricity by way of merging two or more grid systems structure main and auxiliary power-measuring device work simultaneously, the power characteristic that can complete wind-powered electricity generation unit is measured.
Description
Technical field
The utility model relates to wind-powered electricity generation unit power measurement technical field, particularly relates to a kind of wind-powered electricity generation unit power characteristic measuring system.
Background technology
The power generation performance of wind-powered electricity generation unit is the problem that wind-powered electricity generation operator extremely pays close attention to, and the power characteristic of wind-powered electricity generation unit is the primary evaluation index of its power generation performance.The main task of power characteristic analysis is by gather online net power and the equivalent impeller wind speed of wind-powered electricity generation unit, gathered data are screened to the actual motion powertrace of finally drawing out wind-powered electricity generation unit with conversion simultaneously.The data such as the power of the details collection wind-powered electricity generation unit that so first should provide according to IEC61400-12-1:2005 < < wind-powered electricity generation unit power characteristic measurement > > standard, wind speed, wind direction, air pressure, temperature, humidity.Domestic power characteristic surveying work mainly contains two kinds of modes at present: a kind of mode is to use the SCADA system of wind-powered electricity generation unit self to carry out the collection of power and air speed data, because the wind gage that gathers wind speed is on the cabin of unit, wind speed is subject to blade, the interference in wheel hub cabin is comparatively serious, and there is no temperature, air pressure etc. can calculate the data of atmospheric density, therefore the powertrace that the data that collected by SCADA are carried out is analyzed, error is larger, do not meet IEC61400-12-1:2005 < < wind-powered electricity generation unit power characteristic and measure the requirement of > > standard, another kind of mode is by the equipment of installing and measuring, to carry out the collection of power and air speed data, though this measuring equipment can meet the requirement that IEC61400-12-1:2005 < < wind-powered electricity generation unit power characteristic is measured > > standard, but this measuring equipment of installing/dismounting is wasted time and energy, and this power characteristic measuring technique only can meet single channel power collecting, and because some large-scale wind electricity unit adopts the non-single channel structure of generating electricity by way of merging two or more grid systems, therefore existing power characteristic measuring technique is subject to the structural limitations of tested wind-powered electricity generation unit type, the type that can carry out power characteristic measurement is limited.
In addition, because the measuring anemometer tower of power characteristic is carried out in the distance installation of IEC61400-12-1:2005 < < wind-powered electricity generation unit power characteristic measurement > > standard-required between 2 to 4 times of impeller diameters of the tested wind-powered electricity generation unit of distance, and on anemometer tower, install and measure the equipment of weather data, in the meteorologic survey equipment of installing on anemometer tower and wind-powered electricity generation unit, power-measuring device has strict demand on adopted data time, and require the data of two complete equipments can transfer to easily far-end server, reach real-time follow-up analytic function.Based on above-mentioned requirements, carry out at present the collecting device that calibration power feature measurement uses and all use cable to carry out communication, conventionally need underground cable to connect to realize two complete equipments, site operation is complicated, and cost is higher, has potential safety hazard.
As can be seen here, above-mentioned existing wind-powered electricity generation unit power characteristic measuring technique, in structure, method and use, obviously still has inconvenience and defect, and is urgently further improved.How to found a kind of technical requirement that can meet the measurement of different type of machines wind-powered electricity generation unit power characteristic, greatly increase work efficiency, can reduce again installation cost and stop the potential safety hazard that underground cable causes, and the on-the-spot wind-powered electricity generation unit power characteristic measuring system that simple and fast is installed, becoming the current industry utmost point needs improved target.
Utility model content
The technical problems to be solved in the utility model is to provide and a kind ofly meet adopts single channel to generate electricity by way of merging two or more grid systems or the binary channels wind-powered electricity generation unit power characteristic measuring system that the power characteristic of structure wind-powered electricity generation unit measures of generating electricity by way of merging two or more grid systems simultaneously, make it not limited by tested wind-powered electricity generation unit model structure, thereby overcome the deficiency of existing wind-powered electricity generation unit power characteristic measuring equipment.
For solving the problems of the technologies described above, the utility model provides a kind of wind-powered electricity generation unit power characteristic measuring system, comprise power-measuring device and meteorological measuring equipment, described power-measuring device is all connected with remote server communication with meteorological measuring equipment, and described power-measuring device comprises main power-measuring device and auxiliary power measuring equipment.
As further improvement, described main power-measuring device comprises the first data acquisition unit and the communication module for obtaining the first current transformer of the clean grid-connected current of wind-powered electricity generation unit first passage, the first power transducer being connected with the phase voltage of wind-powered electricity generation unit first passage, being connected with the switch board of wind-powered electricity generation unit being connected;
Described auxiliary power measuring equipment comprises that described the second power transducer is connected with described the first data acquisition unit for obtaining second current transformer and the second power transducer being connected with this current transformer and second channel phase voltage of the clean grid-connected current of wind-powered electricity generation unit second channel.
Further improve, described first, second current transformer is that precision is 0.2 grade, the open type current transformer that no-load voltage ratio is 2500/5.
Further improve, described first, second power variator adopts single-chip microcomputer as control core, and by the power stage calculating, gives described the first data acquisition unit by RS485 modular converter.
Further improve, described meteorologic survey equipment adopts the power supply of solar charging electric control system, described solar charging electric control system comprises solar panel, accumulator and the controller for solar distributing for controlling electric weight, and described controller for solar is connected with accumulator with solar panel respectively.
Further improve, described meteorologic survey equipment comprises wind gage, weathervane, Hygrothermograph, pressure gauge, the second data acquisition unit and communication module, and described the second data acquisition unit is connected with described controller for solar.
Further improve, described data acquisition unit has for preserving the 4M memory headroom of image data and the external memory space of 2G.
Further improve, described communication module is wireless communication module.
Further improve, described wireless communication module adopts DTU data transmission unit to carry out data transmission or reception.
Further improve, described the second data acquisition unit comprises that 12 for analog acquisition wind direction, air pressure, humiture information are single-ended and for gathering 8 impulse meter passages of wind velocity signal.
Adopt technique scheme, the utility model at least has the following advantages:
1. the utility model adopts main power-measuring device and auxiliary power measuring equipment, can realize the generate electricity by way of merging two or more grid systems power characteristic of structure wind-powered electricity generation unit of binary channels measures, when wind-powered electricity generation unit is that single channel only needs while generating electricity by way of merging two or more grid systems structure main power-measuring device can complete power characteristic to measure, the utility model can meet simultaneously and adopts single channel to generate electricity by way of merging two or more grid systems or the generate electricity by way of merging two or more grid systems power characteristic measurement of structure wind-powered electricity generation unit of binary channels.
2. in the utility model, communication module is wireless communication module, has avoided the work of underground cable, has both simplified the on-the-spot installation procedure of native system, has greatly improved work efficiency, can reduce again installation cost and stop the potential safety hazard that underground cable causes.
3. in the utility model, meteorologic survey equipment is used solar poweredly, has solved the problem that anemometer tower does not have power supply facilities, energy-conserving and environment-protective.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solutions of the utility model, and in order to better understand technological means of the present utility model, below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model wind-powered electricity generation unit power characteristic measuring system;
Fig. 2 is the charge control system structural representation of meteorologic survey equipment in the utility model;
Fig. 3 is the schematic diagram of wireless communication mode in the utility model;
Fig. 4 is the schematic diagram that in the utility model, wireless communication module is connected with remote server communication.
Embodiment
Visible with reference to accompanying drawing 1, in order to draw out the actual motion powertrace of wind-powered electricity generation unit, the meteorologic survey equipment of wind regime and weather information when the utility model wind-powered electricity generation unit power characteristic measuring system comprises the power-measuring device of the actual clean grid-connected power of measurement wind-powered electricity generation unit and running of wind generating set information and can obtain running of wind generating set.It is inner that power-measuring device is arranged on wind-powered electricity generation unit, and meteorologic survey equipment is installed on apart from the anemometer tower between 2 to 4 times of impeller diameters of wind-powered electricity generation unit, and power-measuring device is all connected with remote server communication with meteorological measuring equipment.In order to meet the generate electricity by way of merging two or more grid systems clean grid-connected power collecting of structure wind-powered electricity generation unit of single channel, can meet again the generate electricity by way of merging two or more grid systems clean grid-connected power collecting of structure wind-powered electricity generation unit of binary channels, this power-measuring device comprises a main power-measuring device and an auxiliary power measuring equipment.
Main power-measuring device comprises the first current transformer, the first power transducer, the first data acquisition unit and communication module.The first current transformer is used for acquiring the clean grid-connected current signal of three-phase of wind-powered electricity generation unit first passage, and sends the first power transducer to.The first power transducer acquires the three-phase voltage signal of this passage of wind-powered electricity generation unit by direct-connected mode, after the electric current gathering and voltage signal are calculated, obtain the real power of this passage of wind-powered electricity generation unit, then the real power obtaining is transferred to the first data acquisition unit.The first data acquisition unit is connected with the switch board of wind-powered electricity generation unit, in order to gather wind speed, wind direction, active power, environment temperature, rotating speed, propeller pitch angle, the grid-connected and fault-signal of wind-powered electricity generation unit, to monitor the detailed status of operation wind-powered electricity generation unit.The data that communication module collects the first data acquisition unit realize communication with remote server and are connected.
Auxiliary power measuring equipment comprises the second current transformer and the second power transducer.The second current transformer is used for acquiring the clean grid-connected current signal of three-phase that wind-powered electricity generation unit second channel sends, and sends the second power transducer to.The second power transducer acquires the three-phase voltage signal of this passage of wind-powered electricity generation unit by direct-connected mode, after the electric current collecting and voltage signal are calculated, obtain the real power of this passage of wind-powered electricity generation unit, then the real power obtaining is transferred to above-mentioned the first data acquisition unit.
When tested wind-powered electricity generation unit is that single channel only needs main power-measuring device work while generating electricity by way of merging two or more grid systems structure; When tested wind-powered electricity generation unit is that binary channels needs main and auxiliary two power-measuring device co-operation while generating electricity by way of merging two or more grid systems structure, first, second current transformer is installed respectively at two passage places that generate electricity by way of merging two or more grid systems and is gathered net current, by first, second power transducer, calculate respectively binary channels real power, then the power signal obtaining is real-time transmitted to the first data acquisition unit of main power-measuring device.Meteorologic survey equipment comprises wind gage, weathervane, Hygrothermograph, pressure gauge, the second data acquisition unit and communication module.Meteorologic survey equipment obtains wind regime information by wind gage, weathervane, in order measurement result to be converted under standard air density when powertrace is verified, also needs to obtain temperature, humidity and air pressure signal by Hygrothermograph, pressure gauge.Above-mentioned signal all obtains by the second data acquisition unit, and by the communication module of meteorologic survey equipment, above-mentioned signal is transferred to remote server.
Because anemometer tower is general without direct power supply facilities, so meteorologic survey equipment also comprises the charge control system that utilizes sun power and Combined storage battery to power to meteorologic survey equipment.Visible with reference to accompanying drawing 2, charge control system comprises solar panel, accumulator and the controller for solar distributing for controlling electric weight, and controller for solar is connected with solar panel, accumulator and the second data acquisition unit respectively.When sunny, use solar panel to power to the second data acquisition unit, and accumulator is charged, when night or solar powered deficiency, use accumulator to power to the second data acquisition unit.
For the ease of long-distance management maintenance, communication module in above-mentioned power-measuring device and meteorological measuring equipment all adopts 3G wireless communication module, visible with reference to accompanying drawing 3, remote server is connected with the communication module of above-mentioned power-measuring device and meteorological measuring equipment by 3G wireless communication module, can carry out that data are collected, the operation such as time synchronized and program change after connection.
As most preferred embodiment, in the utility model, first, second current transformer can adopt the open type current transformer that 0.2 grade of no-load voltage ratio is 2500/5, gathers wind-powered electricity generation unit to the current signal of step down side stube cable, and its technical parameter is shown in Table 1.
Table 1 current transformer technical parameter
As most preferred embodiment, first, second power transducer in the utility model can adopt PIC18 series monolithic to make control core, can realize all measurements of electrical quantitys such as voltage, electric current of three-phase and four-line or other any line system, first, second power transducer calculates the electric current measuring and voltage signal, the power obtaining is directly exported by RS485 modular converter, and use RS485 to turn 232 modules to change 485 signals into signal that the first data acquisition unit can receive, be transferred to and in the first data acquisition unit, carry out statistical computation.
As most preferred embodiment, in the utility model, the first data acquisition unit of power-measuring device is supported a plurality of sensor measurements and is provided data and the function such as the storage of program, control, program is carried out speed can reach 100Hz, meet the sample rate of the minimum 1Hz requiring in powertrace checking, and the data that collect can be carried out to the statistical computations such as various average, maximal values, minimum value, also measurement data can be preserved with form.The first data acquisition unit inside has the memory headroom of 4M in order to preserve image data, and the storage space that outside has 2G has guaranteed sufficient data space.The information exchanges such as the measured wind speed obtaining of wind-powered electricity generation unit providing in wind-powered electricity generation machine set control cabinet in addition, wind direction, active power, environment temperature, rotating speed, propeller pitch angle are crossed analog signals collection, and grid-connected and fault-signal passes through switching value signals collecting.Can carry out design programming to the first data acquisition unit, setting sample frequency is 1Hz, calculates mean value, standard deviation value, maximal value, the minimum value of 10 minutes, and generate form for the data that collect.Finally by the first data acquisition unit by the wireless communication module communication of RS232 and main power-measuring device, by this wireless communication module, data are sent to remote server.
As most preferred embodiment, in the utility model, the wireless communication module of main power-measuring device adopts DTU (data transmission unit) to carry out data send and receive, visible with reference to accompanying drawing 3, wireless communication module has encapsulated PPP dialing protocol and ICP/IP protocol stack and has had embedded OS, possesses that 3G dials up on the telephone and the function of TCP/IP data communication.DTU can convert the raw data on serial ports to TCP/IP packet and transmit, and does not need to change original data communication content.DTU can initiatively initiate to be connected with the communication of remote server, and the connection of keeping in communication exists always.The public network IP address of remote server or fixing domain name as Parameter storage in DTU, once so that DTU powers on dial-up success, just can initiatively be connected to server.Specifically, the parameters such as the IP address (if adopt center domain name first by central field name analysis go out center IP address) of DTU by data center and port numbers, initiate TCP/UDP communication request to server.After the response that obtains server, DTU thinks and server handshaking success, then just keep this communication to connect always and exist, if communication disconnecting, DTU will be immediately again with server handshaking.When TCP/UDP communication connects, set up, just can carry out data double-way communication.This communication modes with respect to the advantage of traditional wireless transmission mail formula communication modes is, connection collecting device that can be two-way, while realizing school, the function such as control.
In the utility model, the preferred wind gage of meteorologic survey equipment is used NRG#40 type wind gage, and weathervane is used NRG#200P, and Hygrothermograph precision is ± 0.3 ℃ (25 ℃), and barometer precision is ± 1.5hPa.
As most preferred embodiment, in the utility model, the second data acquisition unit of meteorologic survey equipment can provide 12 single-ended analog signalses for gathering the information such as wind direction, air pressure, humiture of differing heights on anemometer tower and 8 impulse meter passages for gathering the wind velocity signal of differing heights on anemometer tower.The working range of the second data acquisition unit is-55 ℃ to 85 ℃, can adapt to various extreme conditions, the program of collector is carried out speed can reach 100Hz, the data that collect can also be carried out to the statistical computations such as various mean value, maximal value, minimum value, and measurement data is preserved with form.The second data acquisition unit inside has the memory headroom of 4M in order to preserve image data, and outside has the storage space of 2G to carry out data backup and preservation.Meteorologic survey equipment can the sample frequency with 1Hz gather the simulating signal of the pulse signal of wind gage and weathervane, barometer, Hygrothermograph, and be converted into digital quantity, calculate simultaneously and store 10 minutes mean values of each wind speed, wind direction, air pressure, humiture.
In the utility model, the communication module of meteorologic survey equipment, with the communication module in above-mentioned power-measuring device, carries out data communication by DTU wireless communication module and remote server equally.
LoggerNet software is that CSI exploitation a kind of collects the application software that communication and data acquisition are integrated in one, and is the software may operate under Windows XP or Windows7 environment.User can complete configuration by this software, sets up the connection of computing machine and data acquisition unit, sends capture program, collects data, observe the operations such as real time data and simple data analysis.As most preferred embodiment, the bitcom that the utility model remote server is used adopts LoggerNet4.0.Once the DTU dial-up success that powers in wireless communication module, the parameters such as the server ip address that just domain name mapping by remote server goes out and port numbers, initiate TCP/UDP communication request to the data center of server.Visible with reference to accompanying drawing 4, the utility model remote server end is used peanut shell to carry out server address agency, and using virtual serial port software that the access port arranging on DTU is virtual for serial ports, the serial ports that connection is set for LoggerNet is the serial ports of virtual serial port software virtual.During like this by LoggerNet and serial ports connecting moves, server just responds DTU, and DTU thinks and server handshaking success, then just keep this communication to connect always and exist, because remote equipment and being connected of server set up, just can carry out data double-way communication.
The utility model, owing to adopting wireless telecommunications to connect, has been avoided the work of underground cable, causes the easy installation and removal of native system, obtains data accurately convenient simultaneously.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection domain of the present utility model.
Claims (10)
1. a wind-powered electricity generation unit power characteristic measuring system, it is characterized in that, comprise power-measuring device and meteorological measuring equipment, described power-measuring device is all connected with remote server communication with meteorological measuring equipment, and described power-measuring device comprises main power-measuring device and auxiliary power measuring equipment.
2. wind-powered electricity generation unit power characteristic measuring system according to claim 1, is characterized in that,
Described main power-measuring device comprises the first data acquisition unit and the communication module for obtaining the first current transformer of the clean grid-connected current of wind-powered electricity generation unit first passage, the first power transducer being connected with the phase voltage of wind-powered electricity generation unit first passage, being connected with the switch board of wind-powered electricity generation unit being connected;
Described auxiliary power measuring equipment comprises that described the second power transducer is connected with described the first data acquisition unit for obtaining second current transformer and the second power transducer being connected with this current transformer and second channel phase voltage of the clean grid-connected current of wind-powered electricity generation unit second channel.
3. wind-powered electricity generation unit power characteristic measuring system according to claim 2, is characterized in that, described first, second current transformer is that precision is the open type current transformer that 0.2 grade, no-load voltage ratio are 2500/5.
4. wind-powered electricity generation unit power characteristic measuring system according to claim 2, it is characterized in that, described first, second power variator adopts single-chip microcomputer as control core, and by the power stage calculating, gives described the first data acquisition unit by RS485 modular converter.
5. wind-powered electricity generation unit power characteristic measuring system according to claim 1, it is characterized in that, described meteorologic survey equipment adopts the power supply of solar charging electric control system, described solar charging electric control system comprises solar panel, accumulator and the controller for solar distributing for controlling electric weight, and described controller for solar is connected with accumulator with solar panel respectively.
6. wind-powered electricity generation unit power characteristic measuring system according to claim 5, it is characterized in that, described meteorologic survey equipment comprises wind gage, weathervane, Hygrothermograph, pressure gauge, the second data acquisition unit and communication module, and described the second data acquisition unit is connected with described controller for solar.
7. according to the wind-powered electricity generation unit power characteristic measuring system described in claim 2 or 6, it is characterized in that, described data acquisition unit has for preserving the 4M memory headroom of image data and the external memory space of 2G.
8. according to the wind-powered electricity generation unit power characteristic measuring system described in claim 2 or 6, it is characterized in that, described communication module is wireless communication module.
9. wind-powered electricity generation unit power characteristic measuring system according to claim 8, is characterized in that, described wireless communication module adopts DTU data transmission unit to carry out data transmission or reception.
10. wind-powered electricity generation unit power characteristic measuring system according to claim 6, it is characterized in that, described the second data acquisition unit comprises that 12 for analog acquisition wind direction, air pressure, humiture information are single-ended and for gathering 8 impulse meter passages of wind velocity signal.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033098A (en) * | 2015-03-19 | 2016-10-19 | 上海机电工程研究所 | AC power measuring method and device based on data collection |
| CN106405220A (en) * | 2016-10-20 | 2017-02-15 | 盐城工学院 | Test device and system for output power of range-extending type auxiliary power generation system |
| CN107481496A (en) * | 2017-08-31 | 2017-12-15 | 电子科技大学 | A kind of field inspection data remote transmission system based on GPRS network and cloud platform |
| CN108984949A (en) * | 2018-08-07 | 2018-12-11 | 北控清洁能源集团有限公司 | A kind of pair is surveyed the method that wind data is judged |
| CN111062133A (en) * | 2019-12-18 | 2020-04-24 | 龙源（北京）风电工程技术有限公司 | Wind turbine generator performance analysis method and system |
-
2014
- 2014-07-03 CN CN201420365607.5U patent/CN203929880U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033098A (en) * | 2015-03-19 | 2016-10-19 | 上海机电工程研究所 | AC power measuring method and device based on data collection |
| CN106405220A (en) * | 2016-10-20 | 2017-02-15 | 盐城工学院 | Test device and system for output power of range-extending type auxiliary power generation system |
| CN106405220B (en) * | 2016-10-20 | 2018-12-14 | 盐城工学院 | Extended-range auxiliary generating system output power test device and system |
| CN107481496A (en) * | 2017-08-31 | 2017-12-15 | 电子科技大学 | A kind of field inspection data remote transmission system based on GPRS network and cloud platform |
| CN108984949A (en) * | 2018-08-07 | 2018-12-11 | 北控清洁能源集团有限公司 | A kind of pair is surveyed the method that wind data is judged |
| CN111062133A (en) * | 2019-12-18 | 2020-04-24 | 龙源（北京）风电工程技术有限公司 | Wind turbine generator performance analysis method and system |
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