CN107749829B - Bandwidth-adaptive wind turbine state information transmission method - Google Patents
Bandwidth-adaptive wind turbine state information transmission method Download PDFInfo
- Publication number
- CN107749829B CN107749829B CN201710931070.2A CN201710931070A CN107749829B CN 107749829 B CN107749829 B CN 107749829B CN 201710931070 A CN201710931070 A CN 201710931070A CN 107749829 B CN107749829 B CN 107749829B
- Authority
- CN
- China
- Prior art keywords
- data
- state information
- bandwidth
- wind turbine
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000013480 data collection Methods 0.000 claims description 2
- 108091006146 Channels Proteins 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/52—Queue scheduling by attributing bandwidth to queues
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a wind turbine state information transmission method of self-adaptive bandwidth, which adopts a limited bandwidth state information format to transmit information, wherein the used limited bandwidth state information format comprises three parts of target object packet header data, basic information data and real-time data under the condition of good bandwidth condition; under the condition of bad bandwidth, the used limited bandwidth state information format comprises two parts of target object packet header data and basic information data; therefore, the transmission condition of the state information data of the wind turbine generator is adaptively adjusted along with the bandwidth condition, network congestion is avoided, and smooth and reliable operation of the whole network is ensured.
Description
Technical Field
The invention relates to the technical field of data transmission, in particular to a bandwidth-adaptive wind turbine state information transmission method.
Background
The SCADA (Supervisory Control And Data Acquisition) system is a computer-based DCS And power automation monitoring system, has a wide application field, And can be applied to various fields such as Data Acquisition And monitoring Control And process Control in the fields of power, metallurgy, petroleum, chemical industry, gas, railway And the like. In the power system, the SCADA system is most widely applied, and the technical development is the most mature. The remote monitoring system is important in a telemechanical system, can monitor and control on-site operating equipment to realize various functions such as data acquisition, equipment control, measurement, parameter adjustment, various signal alarms and the like, and is an important component of an RTU (remote terminal unit) and an FTU (feeder terminal unit).
Communication in the SCADA system is divided into internal communication, communication with I/O devices, and external communication. There are generally three communication forms between the client and the server and between the server and the server: on-demand, subscription, and broadcast. Device drivers typically communicate with I/O devices on demand.
Wind power plant SCADA systems generally adopt ring-shaped and tree-shaped networking structures to realize centralized monitoring and data transmission in wind power plants, so that network bandwidth is a very limited and precious resource. In the prior art, a fixed interface protocol is adopted for transmission, the interface protocol cannot be adjusted according to the bandwidth condition, network congestion is easily formed, and smooth and reliable operation of the whole network is not facilitated.
Disclosure of Invention
The invention aims to provide a bandwidth-adaptive wind turbine state information transmission method, which aims to solve the technical problem that the data content and the data size transmitted by an interface protocol cannot be adjusted according to the bandwidth condition at present.
In order to achieve the purpose, the invention provides a bandwidth-adaptive wind turbine state information transmission method, which adopts a limited bandwidth state information format to carry out information transmission, wherein the used limited bandwidth state information format comprises three parts of target object packet header data, basic information data and real-time data under the condition that the bandwidth rate is more than 5K/S; under the condition that the bandwidth rate is less than 5K/S, the used limited bandwidth state information format comprises two parts of target object packet header data and basic information data;
the target object packet header data comprises data of equipment type, transmission mode and transmission time interval, the equipment type data indicates a data source, the transmission mode data indicates a data structure adopted according to the current bandwidth, and the transmission time interval indicates the transmission time interval adopted according to the current bandwidth;
the basic information data comprise a mechanical vibration time domain characteristic value, an electrical characteristic value and an energy efficiency characteristic value;
the real-time data comprises at least one sensing parameter, wherein the sensing parameter comprises a sensor type, a channel number, a collection time interval, a data collection frequency and parameter data content.
Preferably, the mechanical vibration time domain characteristic values include RMS, peak value, warp coefficient and crest factor.
Preferably, the electrical characteristic value includes a voltage value and a current value.
Preferably, the sensor type is any one of acceleration, temperature, flow, pressure, voltage, and current.
Preferably, the parameter data is 4B, one parameter value is stored, the parameter data is collected once and is a group, and the parameter data is stored according to the sequence of channels from 1 to N.
Preferably, the transmission time interval is 1 millisecond to 65 seconds.
The invention has the following beneficial effects:
the invention adjusts the data content and data volume transmitted by the interface protocol according to the bandwidth condition; and a new protocol data information format (limited bandwidth state information format) is provided, a protocol data information format comprising three parts of more data content and larger data volume can be selected under the condition of good bandwidth, and a protocol data information format comprising two parts of less data content and smaller data volume is selected under the condition of poor bandwidth, so that the transmission condition of the state information data of the wind turbine generator set is adaptively adjusted along with the bandwidth, network congestion is avoided, and smooth and reliable operation of the whole network is ensured.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below.
Detailed Description
The following is a detailed description of embodiments of the invention, but the invention can be implemented in many different ways, as defined and covered by the claims.
The invention reduces the requirement on network bandwidth on the premise of ensuring effective transmission of equipment state information by constructing a limited bandwidth state information format and compressing transmission data according to the bandwidth condition.
The bandwidth-limited status information format includes: the data of the target object header, the basic information data and the real-time data. Under the condition that the bandwidth rate is more than 5K/S, the used limited bandwidth state information format comprises three parts of target object packet header data, basic information data and real-time data; under the condition that the bandwidth rate is less than 5K/S, the used limited bandwidth state information format comprises two parts of target object header data and basic information data.
The data format of the target object packet header is as follows:
wherein, the length of the packet head is as follows: and four bytes are used for representing header data, basic information data and the total length of real-time data of the target object.
The device type: expressed in four bytes, example:
meaning 0x 0101: on-line state monitoring equipment + tap water plant
0x0102 meaning: on-line state monitoring equipment + wind field
And (3) transmission mode: expressed in 2 bytes, example:
0x01 meaning: the transmission mode of the target object packet header data + the basic information data;
0x02 meaning; target object packet header data + basic information data + real-time data;
transmission time interval: expressed in 4 bytes, example: 0x03e8 indicates a transmission time interval of 1000 ms.
The basic information data format is as follows:
the real-time data format is shown in the following table, and the number of the sensing parameter fields can be selected according to actual conditions; for example, when two sensing parameter data of acceleration and temperature need to be transmitted, the sensing parameter 01 is filled with the data of the acceleration sensing parameter, the sensing parameter 02 is filled with the data of the temperature sensing parameter, and so on.
According to the state information format, parameters of a transmission mode and a transmission time interval in the header data of the target object can be adjusted according to the bandwidth condition, so that the size of the transmission data volume in unit time is controlled, and the effective bandwidth is adapted.
Under the condition of different effective bandwidths, a congestion control method based on TCP/IP can be used for appointing corresponding bandwidths by a user, adaptively adjusting the transmission speed of monitored data, transmitting the data once in 65 seconds at the lowest, transmitting the data once in 1 millisecond at the highest and collecting the transmission of the data in real time; the smooth and reliable operation of the whole network is guaranteed under the condition of limited bandwidth. For example, under the bandwidth of 1KB/s, the basic information can be transmitted in a mode of 0x01 and at the transmission time interval of 0x1F4 in a manner of 2 times per second; because the basic information contains the characteristic values of the state information (mechanical vibration time domain characteristic value, electrical characteristic value and energy efficiency characteristic value), the state information is still effective; under the condition of a 100M local area network, the 0x02 mode is used as a data acquisition system, and acquired data are transmitted in real time.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A wind turbine state information transmission method of self-adaptive bandwidth is characterized in that a limited bandwidth state information format is adopted for information transmission, and under the condition that the bandwidth rate is greater than 5KB/S, the used limited bandwidth state information format comprises three parts, namely target object packet header data, basic information data and real-time data; under the condition that the bandwidth rate is less than 5KB/S, the used limited bandwidth state information format comprises two parts of target object packet header data and basic information data;
the target object packet header data comprises data of equipment type, transmission mode and transmission time interval, the equipment type data indicates a data source, the transmission mode data indicates a data structure adopted according to the current bandwidth, and the transmission time interval indicates the transmission time interval adopted according to the current bandwidth;
the basic information data comprise a mechanical vibration time domain characteristic value, an electrical characteristic value and an energy efficiency characteristic value;
the real-time data comprises at least one sensing parameter, wherein the sensing parameter comprises a sensor type, a channel number, a collection time interval, a data collection frequency and parameter data content.
2. The method for transmitting the state information of the wind turbine generator according to claim 1, wherein the time-domain characteristic values of the mechanical vibration include RMS, peak value, coefficient of warp and crest factor.
3. The wind turbine state information transmission method according to claim 2, wherein the electrical characteristic values include a voltage value and a current value.
4. The method for transmitting the state information of the wind turbine generator according to claim 1, wherein the type of the sensor is any one of acceleration, temperature, flow, pressure, voltage and current.
5. The method for transmitting the state information of the wind turbine generator according to claim 1, wherein the parameter data is 4B, one parameter value is stored, the parameter data are collected once and are stored in a group, and the parameter data are stored according to a channel sequence from 1 to N.
6. The method according to claim 1, wherein the transmission time interval is 1 millisecond to 65 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931070.2A CN107749829B (en) | 2017-10-09 | 2017-10-09 | Bandwidth-adaptive wind turbine state information transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931070.2A CN107749829B (en) | 2017-10-09 | 2017-10-09 | Bandwidth-adaptive wind turbine state information transmission method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107749829A CN107749829A (en) | 2018-03-02 |
| CN107749829B true CN107749829B (en) | 2021-07-16 |
Family
ID=61255597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710931070.2A Active CN107749829B (en) | 2017-10-09 | 2017-10-09 | Bandwidth-adaptive wind turbine state information transmission method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107749829B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505740A (en) * | 2018-12-04 | 2019-03-22 | 浙江海洋大学 | A kind of Wind turbines status information monitoring method of adaptive bandwidth |
| CN110891092B (en) * | 2019-12-09 | 2022-09-23 | 北京布袋森林科技有限责任公司 | Data compression transmission method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022260A (en) * | 2006-02-15 | 2007-08-22 | 中国科学院自动化研究所 | Multi-wind wheel wind electric machine set and control method thereof |
| US7813326B1 (en) * | 2005-05-27 | 2010-10-12 | Bluetronix Inc. | Swarm location service for mobile ad hoc network communications |
| US7957355B1 (en) * | 2005-05-27 | 2011-06-07 | Heiferling Mark J | Swarm autonomous routing algorithm for mobile ad hoc network communications |
| CN102318289A (en) * | 2011-07-29 | 2012-01-11 | 华为技术有限公司 | Bandwidth adjusting method, bus controller and signal converter |
| CN103033359A (en) * | 2012-12-19 | 2013-04-10 | 西安交通大学 | Wind turbine generator main gear fault diagnosis method of multi-feature multilevel comprehensive judgment |
-
2017
- 2017-10-09 CN CN201710931070.2A patent/CN107749829B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7813326B1 (en) * | 2005-05-27 | 2010-10-12 | Bluetronix Inc. | Swarm location service for mobile ad hoc network communications |
| US7957355B1 (en) * | 2005-05-27 | 2011-06-07 | Heiferling Mark J | Swarm autonomous routing algorithm for mobile ad hoc network communications |
| CN101022260A (en) * | 2006-02-15 | 2007-08-22 | 中国科学院自动化研究所 | Multi-wind wheel wind electric machine set and control method thereof |
| CN102318289A (en) * | 2011-07-29 | 2012-01-11 | 华为技术有限公司 | Bandwidth adjusting method, bus controller and signal converter |
| CN103033359A (en) * | 2012-12-19 | 2013-04-10 | 西安交通大学 | Wind turbine generator main gear fault diagnosis method of multi-feature multilevel comprehensive judgment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107749829A (en) | 2018-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106066192B (en) | A kind of low-voltage platform area fault diagnosis system | |
| CN107749829B (en) | Bandwidth-adaptive wind turbine state information transmission method | |
| KR102104019B1 (en) | Transmission of data from wind farms and wind farms to the control center | |
| CN107241382A (en) | For the data transfer device and its device between serial ports and Ethernet | |
| CN107918330A (en) | A kind of intelligent environment Monitoring and control system | |
| CN102065284A (en) | Method and system for realizing visualized operation of power grid | |
| CN113900426B (en) | Remote equipment control and fault diagnosis system based on 5G+ industrial Internet | |
| CN109151753B (en) | Intelligent monitoring system for high-voltage transmission network | |
| CN207354219U (en) | Photovoltaic module monitors system | |
| CN108894915A (en) | A kind of wind-power electricity generation remote monitoring system and its working method | |
| CN203479337U (en) | Online monitoring communication system for power transmission lines | |
| CN109505740A (en) | A kind of Wind turbines status information monitoring method of adaptive bandwidth | |
| CN107871385A (en) | A kind of Energy Consumption of Construction monitoring system being wirelessly transferred based on 433MHz | |
| CN206193482U (en) | Transmission of oil well parameter acquisition and distribution integrated device | |
| CN204406135U (en) | A kind of long distance control system based on PLC | |
| CN211527484U (en) | Novel mine AoGrey water dynamic monitoring device | |
| CN105226834B (en) | A kind of high-power online induction energy fetching rating of set fluctuation suppressing method of 110kV high-tension lines wireless energy supply system | |
| Wu et al. | Intelligent terminal monitoring system of distribution network for 5g network | |
| CN110676936B (en) | Power distribution automation terminal tail end situation sensing system and alarm method | |
| Chen et al. | Wind farm communication system research based on Ethernet | |
| CN204065259U (en) | A kind of Ethernet transmitting device of lightning arrester on-line monitoring equipment | |
| CN203930456U (en) | A kind of electric energy remote real-time monitoring system | |
| CN207380174U (en) | Distribution line status monitoring and fault warning system | |
| CN112364060B (en) | Transmission method of photovoltaic intelligent operation and maintenance data | |
| CN213183074U (en) | Intelligent air switch for remote meter reading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231114 Address after: Room 101-223, Building 1, Building 1, Changsha Otto Machinery Co., Ltd., No. 13 Huanlian Road, Changsha High tech Development Zone, Changsha City, Hunan Province, 410000 Patentee after: HUNAN VTALL INFORMATION TECHNOLOGY CO.,LTD. Address before: No.98 Lixiang Road, Changsha Economic and Technological Development Zone, Hunan Province, 423038 Patentee before: YINHE ELECTRIC CO.,LTD. |