CN111365199A - Wind turbine generator system auxiliary analysis system - Google Patents
Wind turbine generator system auxiliary analysis system Download PDFInfo
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- CN111365199A CN111365199A CN202010164094.1A CN202010164094A CN111365199A CN 111365199 A CN111365199 A CN 111365199A CN 202010164094 A CN202010164094 A CN 202010164094A CN 111365199 A CN111365199 A CN 111365199A
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- wind turbine
- turbine generator
- current signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to an auxiliary analysis system of a wind turbine generator. The system comprises: high-voltage measuring plate, low-voltage measuring plate, current measuring plate and control panel. The high-voltage measuring board is used for measuring a high-voltage signal of the wind turbine generator to be measured and converting the high-voltage signal into a first weak-current signal; the low-voltage measuring board is used for converting the low-voltage signal into a second weak-current signal; the current measuring plate is used for measuring a current signal of the wind turbine generator to be measured and converting the current signal into a third weak current signal; the control panel is respectively connected with the high-voltage measuring plate, the low-voltage measuring plate and the current measuring plate and used for determining a fault point of the wind turbine generator to be measured according to the first weak current signal, the second weak current signal and/or the third weak current signal and determining fault information. According to the auxiliary analysis system for the wind turbine generator, the fault point of the wind turbine generator to be detected can be quickly judged by measuring the voltage, the current and other information of the wind turbine generator to be detected, and the fault point information corresponding to the fault point can be accurately acquired.
Description
Technical Field
The invention relates to the technical field of wind turbine generator auxiliary analysis, in particular to a wind turbine generator auxiliary analysis system.
Background
With the increasing exhaustion of energy and the increasing pollution, renewable energy and clean energy are increasingly paid more attention. Wind power generation or wind power generation is a clean renewable energy source, and the running cost of a wind turbine set is low, so that wind power technical equipment is an important component of the wind power industry and is also the basis and guarantee of the development of the wind power industry.
Wind power has the advantages of cleanness, reproducibility, low cost and the like, but also has the defects of high geographic requirement, field distribution and the like, so how to collect data of wind power equipment is the basis of automatic management and data monitoring. At present, wind power equipment manufacturers and research institutions at home and abroad adopt traditional equipment vibration monitoring and analyzing technologies (TSI and TDM system technologies) for wind power unit fault diagnosis, the technologies can only provide real-time data display and analysis of wind power unit measuring point parameters and fault post-alarm, and fault points cannot be judged visually. Further, it is difficult to determine accidental failures, and data of failure time cannot be obtained.
Disclosure of Invention
The invention aims to provide an auxiliary analysis system of a wind turbine generator, which can intuitively and accurately display fault point information.
In order to achieve the purpose, the invention provides the following scheme:
a wind turbine generator auxiliary analysis system comprises:
the high-voltage measuring board is used for measuring a high-voltage signal of the wind turbine generator to be measured and converting the high-voltage signal into a first weak current signal;
the low-voltage measuring board is used for converting the low-voltage signal into a second weak-current signal;
the current measuring plate is used for measuring a current signal of the wind turbine generator to be measured and converting the current signal into a third weak current signal;
and the control board is respectively connected with the high-voltage measuring board, the low-voltage measuring board and the current measuring board and is used for determining a fault point of the wind turbine generator to be tested according to the first weak current signal, the second weak current signal and/or the third weak current signal and determining fault information.
Optionally, the wind turbine auxiliary analysis system further includes:
the display panel is connected with the control panel and used for displaying the determined fault point information;
optionally, the display panel includes:
the test connection line interface is connected with the control board and used for inserting the wind turbine generator to be detected through a wire;
and the encoder interface is connected with the control panel and used for plugging the encoder.
Optionally, the display panel further includes:
and the wireless transmitting interface is connected with the control panel and is used for plugging a wireless transmitter so as to transmit the fault point information to a remote computer or an upper computer in a wireless manner.
Optionally, the control panel includes:
and the wireless communication module is used for carrying out wireless communication with a remote computer.
Optionally, the wind turbine auxiliary analysis system further includes:
and the temperature measuring plate is connected with the control panel and used for measuring the temperature of the wind turbine generator to be measured and converting the temperature into a fourth weak current signal.
Optionally, the wind turbine auxiliary analysis system further includes:
and the data storage board is connected with the control board and used for storing the original data of the wind turbine generator to be tested.
Optionally, the control panel includes:
and the judging module is respectively connected with the low-voltage measuring plate, the current measuring plate and/or the temperature measuring plate and is used for obtaining fault point information of the wind turbine generator to be detected according to the original data, the first weak current signal, the second weak current signal and/or the third weak current signal.
Optionally, the wind turbine auxiliary analysis system further includes a box body;
the high-voltage measuring plate, the low-voltage measuring plate, the current measuring plate and the control plate are all installed in the box body.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the auxiliary analysis system for the wind turbine generator, disclosed by the invention, the fault point of the wind turbine generator to be detected can be quickly judged by measuring the voltage, current and temperature information of the wind turbine generator to be detected and then comparing and judging the voltage, current and temperature information with the original data information, and the fault point information corresponding to the fault point can be accurately acquired.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a block diagram of a wind turbine generator auxiliary analysis system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is an overall structural diagram of the wind turbine auxiliary analysis system according to the embodiment of the present invention.
Reference numerals: 1-high voltage measuring board, 2-low voltage measuring board, 3-current measuring board, 4-control board, 5-display panel, 6-temperature measuring board and 7-data storage board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an auxiliary analysis system of a wind turbine generator, which can intuitively and accurately display fault point information.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a block diagram of a structure of a wind turbine auxiliary analysis system according to an embodiment of the present invention, and as shown in fig. 1, the wind turbine auxiliary analysis system includes: high-voltage measuring plate 1, low-voltage measuring plate 2, current measuring plate 3 and control panel 4.
The high-voltage measuring board 1 is used for measuring a high-voltage signal of the wind turbine generator to be measured and converting the high-voltage signal into a first weak current signal;
the low-voltage measuring board 2 is used for converting the low-voltage signal into a second weak-current signal;
the current measuring plate 3 is used for measuring a current signal of the wind turbine generator to be measured and converting the current signal into a third weak current signal;
the control board 4 is respectively connected with the high-voltage measuring board 1, the low-voltage measuring board 2 and the current measuring board 3, and is used for determining a fault point of the wind turbine generator to be measured according to the first weak current signal, the second weak current signal and/or the third weak current signal and determining fault information.
As an embodiment of the present invention, the wind turbine auxiliary analysis system further includes: a display panel 5. The display panel 5 is connected with the control panel 4 and is used for displaying the determined fault point information;
as shown in fig. 2, the display panel 5 includes: the test connection interface, the encoder interface and the wireless transmission interface.
The test connecting line interface is connected with the control board 4 and is used for inserting the wind turbine generator to be detected through a lead;
the encoder interface is connected with the control panel 4 and is used for plugging an encoder.
And the wireless transmitting interface is connected with the control board 4 and is used for plugging a wireless transmitter so as to transmit the fault point information to a remote computer or an upper computer in a wireless manner.
In order to facilitate the telecommunication and improve the timeliness of data information reception, as another embodiment of the present invention, the control board 4 includes: a wireless communication module. The wireless communication module is used for carrying out wireless communication with a remote computer.
In addition, the temperature can also be used as a factor of the fault of the wind turbine, so as to provide another embodiment of the present invention, the auxiliary analysis system for a wind turbine further includes: a temperature measuring plate 6. The temperature measuring plate 6 is connected with the control plate 4 and used for measuring the temperature of the wind turbine generator to be measured and converting the temperature into a fourth weak current signal.
In order to facilitate query and comparison of the original data of the wind turbine generator to be measured, the auxiliary analysis system for the wind turbine generator provided by the invention can further comprise: a data storage board 7. The data storage board 7 is connected with the control board 4 and used for storing original data of the wind turbine generator to be tested.
Further, in order to increase the accuracy of the data, the control board 4 in the wind turbine auxiliary analysis system provided by the present invention may further include: and a judging module. The judgment module is respectively connected with the low-voltage measurement plate 2, the current measurement plate 3 and/or the temperature measurement plate 6 and is used for obtaining fault point information of the wind turbine generator to be tested according to the original data, the first weak current signal, the second weak current signal, the third weak current signal and/or the fourth weak current signal.
Because the measurement of a common wind turbine generator is completed in the field, the adopted detection equipment has the functions of sun protection, rain protection and the like while the portability of the measurement equipment is required to be improved, so that the equipment detection reliability is improved, and the service life of the detection equipment is prolonged, therefore, aiming at the defects in the prior art, the wind turbine generator auxiliary analysis system further comprises a box body; so that the high voltage measuring board 1, the low voltage measuring board 2, the current measuring board 3 and the control board 4 are all installed in the case (as shown in fig. 3).
The box body is made of plastic, so that the weight of the whole wind turbine auxiliary analysis system is further reduced.
The advantages of the wind turbine auxiliary analysis system provided by the invention are explained in the following by specific detection and analysis examples.
And when two 3MW units 6# and 17# in a certain wind field in Shanxi run at full power, the main control reports the overcurrent fault of the grid side module of the converter. And field maintainers check the two converter units, no device is damaged or abnormal, and the low-power operation is normal.
The wind turbine generator auxiliary analysis system provided by the invention monitors data such as grid-side three-phase current, direct-current bus voltage and the like of the converter, and when the wind turbine generator auxiliary analysis system fails and stops, the auxiliary analysis system data is exported, and the running state of the wind turbine generator is analyzed.
When the grid-side direct-current bus voltage rises 175V at the fault time, the grid-side power unit is stopped due to software protection, and the main control reports the grid-side overcurrent fault of the converter. Meanwhile, the communication voltage between the converter and the water-cooling CAN at the fault point is reduced to 0V, and the communication loss is proved. And (4) integrating the fault data and the actual field situation, and analyzing the fault reason because the converter is in communication flash with the water cooling control system, so that the power unit on the network side is protected and shut down. When the modulation of the network side is stopped, the voltage of the direct current bus can be increased, and a software alarm value is triggered. And the master control reports the overcurrent fault of the network side of the converter. And field maintainers replace the CAN communication module, so that the overcurrent fault of the network side of the converter is solved.
Through using the auxiliary analysis system, monitoring point positions can be flexibly designed according to actual conditions on site, simultaneous monitoring of signals such as direct current bus voltage, grid side three-phase current, 24V control voltage and can communication can be completed, recording can be conducted on the whole fault process in a targeted mode, and the detection of small and micro faults or hidden dangers by maintainers is assisted.
And the No. 10 unit of a certain wind field in Shandong reports the feedback fault of the yaw motor frequently. The yaw motor feedback detects 4 total return circuits, uses the mains supply of same way, connects respectively on 4 feedback channels of plc. The on-site maintainer handles the trouble at the initial stage, has changed thermal relay, option card, plc etc. in proper order, does not solve the problem. After analysis, the power supply is suspected to have problems, but the main control data shows that the power supply is normal and is not disconnected.
And then, by adopting the auxiliary analysis system of the wind turbine generator, the fault point is determined to appear on the power supply circuit by comprehensively analyzing the feedback circuit of the yaw motor. Although the main control detects the 24v power supply, the problem is that the detection point is the output port of the switching power supply, and whether all tapping points of the whole power supply loop are consistent or not cannot be guaranteed.
Based on the idea, a wind turbine generator auxiliary analysis system is adopted to monitor four points of an output port, a power tapping point, a thermal relay feedback point and a yaw motor main loop voltage of a 24V switching power supply respectively. The voltage waveforms of 4 points are placed in the same time axis for monitoring and are mutually trigger conditions. After the unit reports the feedback fault of the yaw motor again, the auxiliary analysis system of the wind turbine unit completes fault triggering and information acquisition according to parameter setting, data waveform display shows that the voltage of a main loop of the yaw motor is normal, the output of a 24V switching power supply is normal, but 24V power supply tapping points and thermal relay feedback 24V are lost, so that the fault point is determined to be at the 24V tapping point.
And a maintainer in a certain Liaoning wind field feeds back that a fault of a grid-connected contactor is reported frequently in the operation of the 8# converter. The maintainer has inspected all normal of solenoid and feedback loop in the initial stage, can reset the operation, but the hidden danger of trouble still exists, and follow-up change is incorporated into power networks the contactor, does not solve the problem.
The wind turbine generator auxiliary analysis system provided by the invention is used for testing, and respectively monitors a main loop 690V of a grid-connected contactor, a contactor 230V and a control loop 24V. Setting a voltage drop as a trigger condition. Therefore, when the next converter fails, the auxiliary analyzer records the same time axis data of the three voltages, and determines that the 24V power supply is suddenly disconnected from the output end of the control relay, so that the follow-up contactor is disconnected, and the grid-connected contactor coil is disconnected in case of power failure. And reporting the grid-connected contactor fault by the converter.
A No. 10 unit of a certain wind field of Tongliao of inner Mongolia frequently reports converter faults, field maintainers check through an upper computer, and fault information displays that faults of a frame breaker, a grid side A phase default fault, a grid-connected contactor and the like are reported recently. The maintainer checks that the wiring of the control loop is intact, and the methods of sequentially replacing the frame breaker, the network side A-phase power unit, the CPU board and the like still do not solve the problem.
The wind turbine generator auxiliary analysis system provided by the invention is used for monitoring the working states of the suction coils of the frame circuit breaker and the grid-connected contactor and fault data of the voltage and the current of the main loop, and determining that the output current of the lower port of the power unit is normal without the problems of overcurrent, phase failure and the like. By further monitoring the 220V voltage at which the contactor is powered, it is determined that there is a problem with a sudden drop in voltage at 220V.
Through the application example, the wind turbine generator auxiliary analysis system provided by the invention has the following functions:
1. 690V voltage, 400V voltage, 230V voltage, 24V voltage and direct current bus voltage signals can be measured; current signals such as power grid current, stator current, yaw current and the like can be measured; data signals such as temperature, 4-20mA, an encoder, a proximity switch, an IO port and the like can be measured;
2. the method is used as a key signal of a real-time oscilloscope for measuring the tested equipment, and a fault point is quickly positioned;
3. the method is used as a wave recorder for carrying out threshold triggering on accidental faults, judging the reasons of the accidental faults and positioning fault points;
4. as remote monitoring, the system can monitor the conditions of certain key parameters of the unit for a long time and discover abnormality through data analysis;
5. the system has the functions of remote networking and data uploading, and difficult faults are analyzed on site data through technical experts so as to be rapidly eliminated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. The utility model provides a wind turbine generator system assists analytic system which characterized in that includes:
the high-voltage measuring board is used for measuring a high-voltage signal of the wind turbine generator to be measured and converting the high-voltage signal into a first weak current signal;
the low-voltage measuring board is used for converting the low-voltage signal into a second weak-current signal;
the current measuring plate is used for measuring a current signal of the wind turbine generator to be measured and converting the current signal into a third weak current signal;
and the control board is respectively connected with the high-voltage measuring board, the low-voltage measuring board and the current measuring board and is used for determining a fault point of the wind turbine generator to be tested according to the first weak current signal, the second weak current signal and/or the third weak current signal and determining fault information.
2. The wind turbine generator system auxiliary analysis system according to claim 1, wherein the wind turbine generator system auxiliary analysis system further comprises:
and the display panel is connected with the control panel and is used for displaying the determined fault point information.
3. The wind turbine generator auxiliary analysis system according to claim 2, wherein the display panel comprises:
the test connection line interface is connected with the control board and used for inserting the wind turbine generator to be detected through a wire;
and the encoder interface is connected with the control panel and used for plugging the encoder.
4. The wind turbine generator system auxiliary analysis system according to claim 2, wherein the display panel further comprises:
and the wireless transmitting interface is connected with the control panel and is used for plugging a wireless transmitter so as to transmit the fault point information to a remote computer or an upper computer in a wireless manner.
5. The wind turbine generator auxiliary analysis system of claim 1, wherein the control board comprises:
and the wireless communication module is used for carrying out wireless communication with a remote computer.
6. The wind turbine generator system auxiliary analysis system according to claim 1, wherein the wind turbine generator system auxiliary analysis system further comprises:
and the temperature measuring plate is connected with the control panel and used for measuring the temperature of the wind turbine generator to be measured and converting the temperature into a fourth weak current signal.
7. The wind turbine generator system auxiliary analysis system according to claim 1, wherein the wind turbine generator system auxiliary analysis system further comprises:
and the data storage board is connected with the control board and used for storing the original data of the wind turbine generator to be tested.
8. The wind turbine generator auxiliary analysis system according to claim 6 or 7, wherein the control board comprises:
and the judging module is respectively connected with the low-voltage measuring plate, the current measuring plate and/or the temperature measuring plate and is used for obtaining fault point information of the wind turbine generator to be detected according to the original data, the first weak current signal, the second weak current signal and/or the third weak current signal.
9. The wind turbine generator system auxiliary analysis system according to claim 1, wherein the wind turbine generator system auxiliary analysis system further comprises a box body;
the high-voltage measuring plate, the low-voltage measuring plate, the current measuring plate and the control plate are all installed in the box body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010164094.1A CN111365199B (en) | 2020-03-11 | 2020-03-11 | Wind turbine generator system auxiliary analysis system |
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| CN202010164094.1A CN111365199B (en) | 2020-03-11 | 2020-03-11 | Wind turbine generator system auxiliary analysis system |
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| CN111365199A true CN111365199A (en) | 2020-07-03 |
| CN111365199B CN111365199B (en) | 2021-01-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101153809A (en) * | 2006-09-29 | 2008-04-02 | 通用电气公司 | Methods and apparatus for evaluating sensors and/or for controlling operation of an apparatus that includes a sensor |
| CN101237142A (en) * | 2007-12-11 | 2008-08-06 | 上海电力学院 | Failure control method for winding line rotor wind power generator system |
| CN102808729A (en) * | 2011-06-03 | 2012-12-05 | 德国恩德能源有限公司 | Method used for running wind power generation equipment in case of fault of electrified wire netting and wind power generation equipment |
| CN103835882A (en) * | 2014-03-18 | 2014-06-04 | 上海电机学院 | Large wind generating set state monitoring and fault diagnosis system |
| CN105888988A (en) * | 2016-06-20 | 2016-08-24 | 哈尔滨理工大学 | Wind generating set fault information collecting and displaying device based on DSP |
-
2020
- 2020-03-11 CN CN202010164094.1A patent/CN111365199B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153809A (en) * | 2006-09-29 | 2008-04-02 | 通用电气公司 | Methods and apparatus for evaluating sensors and/or for controlling operation of an apparatus that includes a sensor |
| CN101237142A (en) * | 2007-12-11 | 2008-08-06 | 上海电力学院 | Failure control method for winding line rotor wind power generator system |
| CN102808729A (en) * | 2011-06-03 | 2012-12-05 | 德国恩德能源有限公司 | Method used for running wind power generation equipment in case of fault of electrified wire netting and wind power generation equipment |
| CN103835882A (en) * | 2014-03-18 | 2014-06-04 | 上海电机学院 | Large wind generating set state monitoring and fault diagnosis system |
| CN105888988A (en) * | 2016-06-20 | 2016-08-24 | 哈尔滨理工大学 | Wind generating set fault information collecting and displaying device based on DSP |
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| CN111365199B (en) | 2021-01-26 |
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