CN103884863A - Monitoring device and monitoring method for monitoring wind power plant supersonic wave wind speed based on FPGA - Google Patents
Monitoring device and monitoring method for monitoring wind power plant supersonic wave wind speed based on FPGA Download PDFInfo
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- CN103884863A CN103884863A CN201410059237.7A CN201410059237A CN103884863A CN 103884863 A CN103884863 A CN 103884863A CN 201410059237 A CN201410059237 A CN 201410059237A CN 103884863 A CN103884863 A CN 103884863A
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Abstract
The invention discloses a monitoring device and a monitoring method for monitoring wind power plant supersonic wave wind speed based on FPGA. The monitoring device for monitoring wind power plant supersonic wave wind speed based on FPGA comprises an FPGA chip, a single chip microcomputer and three pairs of ultrasonic transducers. The FPGA chip realizes time sequence emission of supersonic wave emission signals and calculates the dissemination time period from the transmission of driving pulse to correct reception of the ultrasonic signal; the three pairs of ultrasonic transducers successively emit ultrasonic signals from the top down and a timer is started to count when the ultrasonic signals are emitted; each pair of the ultrasonic transducers can respectively perform one time emission and reception, and when three pairs of the ultrasonic transducer finish emission and reception, a circulation is finished; and the single chip microcomputer receives the data transmitted by the FPGS chip. As a result, the scheme of the invention can perform more accurate prediction and correction on wind power, improve prediction accuracy and promote development of new energy generation.
Description
Technical field
The present invention relates to generation of electricity by new energy process apoplexy monitoring resource technical field, particularly, relate to a kind of based on FPGA for wind energy turbine set ultrasonic wind speed monitoring device and monitoring method.
Background technology
At present; the large-scale new forms of energy base majority that China's wind-powered electricity generation produces after entering the large-scale development stage is positioned at " three northern areas of China " (northwest, northeast, North China); large-scale new forms of energy base is generally away from load center, and its electric power need to be transported to load center and dissolve through long-distance, high voltage.Due to intermittence, randomness and the undulatory property of wind-resources, cause the wind-powered electricity generation generated output in extensive new forms of energy base that fluctuation in a big way can occur thereupon, further cause the fluctuation of power transmission network charge power, bring series of problems to safe operation of electric network.
By in November, 2013, the installed capacity of Gansu Power Grid grid connected wind power has reached 6,680,000 kilowatts, accounts for 21% of Gansu Power Grid total installation of generating capacity, becomes the second largest main force power supply that is only second to thermoelectricity.Along with improving constantly of wind-electricity integration scale, wind-powered electricity generation uncertainty and uncontrollability are brought problems to the safety and stability economical operation of electrical network.And prior art can be carried out the accurately technology of monitoring to the wind-resources in wind-power electricity generation process in addition.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of based on FPGA for wind energy turbine set ultrasonic wind speed monitoring device and monitoring method, accurately wind power predicted and proofreaied and correct to realize, improve precision of prediction, promote the advantage of generation of electricity by new energy.
For achieving the above object, the technical solution used in the present invention is:
Based on FPGA for a wind energy turbine set ultrasonic wind speed monitoring device,
Comprise fpga chip, single-chip microcomputer and three pairs of ultrasonic transducers;
Described fpga chip, realizes the sequential transmitting that ultrasound wave transmits, and correctly receives the ultrasonic signal calculating in travel-time used from sending to of driving pulse;
Described three pairs of ultrasonic transducers, launch ultrasonic signal successively from the top down, start timer counting when transmitting; Every pair of ultrasonic transducer once transmits and receives respectively, and three pairs all complete, and completes a cyclic process;
Described single-chip microcomputer, receives the data that fpga chip transmits.
According to a preferred embodiment of the invention, the distance between every pair of ultrasonic transducer of above-mentioned three pairs of ultrasonic transducers is 15cm.
Technical scheme of the present invention also provides a kind of monitoring method for wind energy turbine set ultrasonic wind speed monitoring device based on FPGA simultaneously, and in described three pairs of ultrasonic transducers, every pair of ultrasonic transducer is all setting up and down; Comprise the following steps:
Step 1: three of the tops ultrasonic transducer of three pairs of ultrasonic probes sends driving pulse to following three probes respectively according to the time, and start timer timing T1 simultaneously, T2, T3, and start the time differentiation reception trigger circuit of three ultrasonic probes below simultaneously;
Step 2: whether judgement below three ultrasonic probes receives ultrasonic signal, returns to step 1 as do not received ultrasonic signal;
Step 3: as receive ultrasonic signal, record three pairs of ultrasonic probes ultrasound wave flight time T1 of corresponding ultrasonic probe below ultrasonic probe is above transmitted into respectively successively, T2, T3;
Step 4: then three probes send driving pulse to following three ultrasonic transducers of three pairs of ultrasonic probes to top respectively according to the time, and start timer timing T1 ' simultaneously, T2 ', T3 ', the time of three ultrasonic probes above that simultaneously starts is differentiated reception trigger circuit;
Step 5: whether judgement above three ultrasonic probes receives ultrasonic signal, returns to step 4 as do not received ultrasonic signal;
Step 6: as receive ultrasonic signal and record three pairs of ultrasonic probes successively respectively from the ultrasound wave flight time T1 ' of ultrasonic probe corresponding ultrasonic probe above being transmitted into below, T2 ', T3 ';
Step 7: judge whether single-chip microcomputer allows to transmit data and interrupt, transmit data if do not allowed and interrupt time delay wait;
Step 8: interrupt as single-chip microcomputer allows transmission data, FPGA sends interrupt request to single-chip microcomputer, FPGA log-on data transfer clock, simultaneously by ultrasound wave flight time T1, T2, T3, T1 ', T2 ', T3 ' sends to single-chip microcomputer;
Step 9: by the time DTD, disconnects and being connected of single-chip microcomputer.
Technical scheme of the present invention has following beneficial effect:
Technical scheme of the present invention, by the wind-resources in wind-power electricity generation process is monitored, the better situation of change of wind energy in predict future a period of time, thus more accurately wind power predicted and proofreaied and correct, improve precision of prediction, promote the development of generation of electricity by new energy.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the schematic flow sheet for wind energy turbine set ultrasonic wind speed monitoring method based on FPGA described in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Based on FPGA for a wind energy turbine set ultrasonic wind speed monitoring device,
Comprise fpga chip, single-chip microcomputer and three pairs of ultrasonic transducers;
Described fpga chip, realizes the sequential transmitting that ultrasound wave transmits, and correctly receives the ultrasonic signal calculating in travel-time used from sending to of driving pulse;
Described three pairs of ultrasonic transducers, launch ultrasonic signal successively from the top down, start timer counting when transmitting; Every pair of ultrasonic transducer once transmits and receives respectively, and three pairs all complete, and completes a cyclic process;
Described single-chip microcomputer, receives the data that fpga chip transmits.
Wherein, the distance between every pair of ultrasonic transducer of three pairs of ultrasonic transducers is 15cm.
As shown in Figure 1, technical scheme of the present invention also provides a kind of monitoring method for wind energy turbine set ultrasonic wind speed monitoring device based on FPGA simultaneously, and in three pairs of ultrasonic transducers, every pair of ultrasonic transducer is all setting up and down; Comprise the following steps:
Step 1: three of the tops ultrasonic transducer of three pairs of ultrasonic probes sends driving pulse to following three probes respectively according to the time, and start timer timing T1 simultaneously, T2, T3, and start the time differentiation reception trigger circuit of three ultrasonic probes below simultaneously;
Step 2: whether judgement below three ultrasonic probes receives ultrasonic signal, returns to step 1 as do not received ultrasonic signal;
Step 3: as receive ultrasonic signal, record three pairs of ultrasonic probes ultrasound wave flight time T1 of corresponding ultrasonic probe below ultrasonic probe is above transmitted into respectively successively, T2, T3;
Step 4: then three probes send driving pulse to following three ultrasonic transducers of three pairs of ultrasonic probes to top respectively according to the time, and start timer timing T1 ' simultaneously, T2 ', T3 ', the time of three ultrasonic probes above that simultaneously starts is differentiated reception trigger circuit;
Step 5: whether judgement above three ultrasonic probes receives ultrasonic signal, returns to step 4 as do not received ultrasonic signal;
Step 6: as receive ultrasonic signal and record three pairs of ultrasonic probes successively respectively from the ultrasound wave flight time T1 ' of ultrasonic probe corresponding ultrasonic probe above being transmitted into below, T2 ', T3 ';
Step 7: judge whether single-chip microcomputer allows to transmit data and interrupt, transmit data if do not allowed and interrupt time delay wait;
Step 8: interrupt as single-chip microcomputer allows transmission data, FPGA sends interrupt request to single-chip microcomputer, FPGA log-on data transfer clock, simultaneously by ultrasound wave flight time T1, T2, T3, T1 ', T2 ', T3 ' sends to single-chip microcomputer;
Step 9: by the time DTD, disconnects and being connected of single-chip microcomputer.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
- Based on FPGA for a wind energy turbine set ultrasonic wind speed monitoring device, it is characterized in that,Comprise fpga chip, single-chip microcomputer and three pairs of ultrasonic transducers;Described fpga chip, realizes the sequential transmitting that ultrasound wave transmits, and correctly receives the ultrasonic signal calculating in travel-time used from sending to of driving pulse;Described three pairs of ultrasonic transducers, launch ultrasonic signal successively from the top down, start timer counting when transmitting; Every pair of ultrasonic transducer once transmits and receives respectively, and three pairs all complete, and completes a cyclic process;Described single-chip microcomputer, receives the data that fpga chip transmits.
- According to claim 1 based on FPGA for wind energy turbine set ultrasonic wind speed monitoring method, it is characterized in that, the distance between every pair of ultrasonic transducer of above-mentioned three pairs of ultrasonic transducers is 15cm.
- 3. claim 1 and the monitoring method for wind energy turbine set ultrasonic wind speed monitoring device based on FPGA claimed in claim 2, in described three pairs of ultrasonic transducers, every pair of ultrasonic transducer is all setting up and down; It is characterized in that, comprise the following steps:Step 1: three of the tops ultrasonic transducer of three pairs of ultrasonic probes sends driving pulse to following three probes respectively according to the time, and start timer timing T1 simultaneously, T2, T3, and start the time differentiation reception trigger circuit of three ultrasonic probes below simultaneously;Step 2: whether judgement below three ultrasonic probes receives ultrasonic signal, returns to step 1 as do not received ultrasonic signal;Step 3: as receive ultrasonic signal, record three pairs of ultrasonic probes ultrasound wave flight time T1 of corresponding ultrasonic probe below ultrasonic probe is above transmitted into respectively successively, T2, T3;Step 4: then three probes send driving pulse to following three ultrasonic transducers of three pairs of ultrasonic probes to top respectively according to the time, and start timer timing T1 ' simultaneously, T2 ', T3 ', the time of three ultrasonic probes above that simultaneously starts is differentiated reception trigger circuit;Step 5: whether judgement above three ultrasonic probes receives ultrasonic signal, returns to step 4 as do not received ultrasonic signal;Step 6: as receive ultrasonic signal and record three pairs of ultrasonic probes successively respectively from the ultrasound wave flight time T1 ' of ultrasonic probe corresponding ultrasonic probe above being transmitted into below, T2 ', T3 ';Step 7: judge whether single-chip microcomputer allows to transmit data and interrupt, transmit data if do not allowed and interrupt time delay wait;Step 8: interrupt as single-chip microcomputer allows transmission data, FPGA sends interrupt request to single-chip microcomputer, FPGA log-on data transfer clock, simultaneously by ultrasound wave flight time T1, T2, T3, T1 ', T2 ', T3 ' sends to single-chip microcomputer;Step 9: by the time DTD, disconnects and being connected of single-chip microcomputer.
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Citations (3)
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|---|---|---|---|---|
| CN102175887A (en) * | 2011-01-26 | 2011-09-07 | 南京信息工程大学 | Mobile ultrasonic anemoclinograph and method for measuring wind speed and direction |
| CN103018481A (en) * | 2012-11-26 | 2013-04-03 | 湖南赛能环保科技有限公司 | Three-dimensional ultrasonic wind meter with temperature correction and measurement method thereof |
| CN103163324A (en) * | 2013-03-14 | 2013-06-19 | 甘肃省电力公司 | Detecting system and measuring method of three-dimensional ultrasonic wind speed temperature of wind power plant |
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- 2014-02-21 CN CN201410059237.7A patent/CN103884863A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175887A (en) * | 2011-01-26 | 2011-09-07 | 南京信息工程大学 | Mobile ultrasonic anemoclinograph and method for measuring wind speed and direction |
| CN103018481A (en) * | 2012-11-26 | 2013-04-03 | 湖南赛能环保科技有限公司 | Three-dimensional ultrasonic wind meter with temperature correction and measurement method thereof |
| CN103163324A (en) * | 2013-03-14 | 2013-06-19 | 甘肃省电力公司 | Detecting system and measuring method of three-dimensional ultrasonic wind speed temperature of wind power plant |
Non-Patent Citations (1)
| Title |
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| 吴宗玲: "超声波风速风向仪的设计与研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
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