CN104113088A - Wind power cluster control system - Google Patents
Wind power cluster control system Download PDFInfo
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- CN104113088A CN104113088A CN201410378025.5A CN201410378025A CN104113088A CN 104113088 A CN104113088 A CN 104113088A CN 201410378025 A CN201410378025 A CN 201410378025A CN 104113088 A CN104113088 A CN 104113088A
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- blower fan
- active power
- fans
- blower
- tuning controller
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Abstract
The invention discloses a wind power cluster control system. The wind power cluster control system is composed of a fan control terminal and a coordinating controller, and data interaction is performed between the fan control terminal and the coordinating controller through a general packet radio service (GPRS) network. Real-time operating information of distributed fans is subjected to united management by the control system, the distributed fans are equivalent to a virtual wind power cluster to be shown in front of a power dispatching center, instructions of the power dispatching center can be received, and the total active power of the virtual wind power cluster can be controlled.
Description
Technical field
The invention belongs to electric power system technical field of power generation, relate to particularly formation and the implementation of an a kind of wind-powered electricity generation group of planes (by the virtual equivalence of distributing blower fan) control system.
Background technology
Distributing access Wind Power Project refers to and is positioned near power load center, and or not to transmit electric power at a distance as object on a large scale, the electric power producing does not access electrical network nearby, and the Wind Power Project of dissolving in locality.
The supervisory control system that these distributed blower fans are ununified, many places are in the running status of freely generating electricity.A general small towns can be installed 3～5, directly accesses local suburb, town electric substation.Along with distributed blower fan number is increasing, after formation scale, will increase the pressure of Regulation, it is the problem that must solve that these distributed blower fans are monitored.
Distributed blower fan very disperses physically, sets up special communication network cost huge, selects preferably and adopt remote wireless communication technology to be one.GPRS communication mode technology maturation, applied range, whole industrial chain is self-contained.Its real-time online, the feature of pressing flow charging and high-speed transfer are especially applicable to the application of this project.The typical transmission rate of GPRS communication is 10～40kBits/s, and the information that each blower fan will be mutual, in 100bytes, in 1 minute, can complete the information interaction to hundreds of Fans by GPRS so.But GPRS communication belongs to public network communication, is accessed the security protection criterion that power dispatch data network must meet electric power system.
The distributing blower fan overwhelming majority time is in free generating state.In the time that the peak regulation pressure of whole electrical network cannot be alleviated, power control also must be limit to distributing blower fan in power-management centre.Power-management centre wishes to issue a total active power instruction for a virtual wind-powered electricity generation group of planes by equivalent distributing blower fan, is carried out power division by wind turbine group control system between distributing blower fan, reaches power control object.
In sum, adopting safe network communication mode to bring distributing blower fan access into power-management centre, to carry out monitoring and controlling be that the problem solving is urgently expected by power system dispatching department.
Summary of the invention
In order to solve foregoing problem, the invention discloses a kind of formation and implementation of wind turbine group control system.
The present invention specifically by the following technical solutions.
A kind of wind turbine group control system, described control system is made up of M Fans control terminal and 1 tuning controller, wherein, 1<M<500; It is characterized in that:
Described tuning controller is positioned over region transformer station electric room, and air-blower control terminal is positioned over fan engine room;
Described air-blower control terminal is carried out exchanges data by RS485 serial ports and blower fan master control system downwards, is upwards communicated by letter and is carried out data interaction with tuning controller by GPRS;
Air-blower control terminal sends the real-time running data of blower fan to tuning controller, and the start and stop instruction that tuning controller is issued is transmitted to blower fan master control system;
The mode that described tuning controller is communicated by letter by GPRS is downwards obtained the real time execution information of distributing blower fan, upwards communicate by RS485 serial ports and telemechanical supervisor, thereby by virtual multiple distributing blower fans be a wind-powered electricity generation group of planes, and will in real time execution information, give power-management centre, receive the total active power instruction of power-management centre for a virtual wind-powered electricity generation group of planes simultaneously, then distribute in affiliated distributing blower fan according to the set control strategy of active power, and send instruction to air-blower control terminal.
The present invention also further preferably includes following technical scheme:
Described tuning controller and air-blower control terminal are embedded controller, and application program is that disposable compiling generates, and does not allow dynamic load; Tuning controller and air-blower control terminal have realized the conversion of different communication medium (RS485 serial ports and GPRS), and two kinds of communication modes carry out data interaction based on real-time storehouse; The built-in symmetric encipherment algorithm that meets IDEA standard of tuning controller and air-blower control terminal, the data of communication interaction, with the mode transmission of ciphertext, ensure secure communication.For deciphering after data carry out application level scope check after reenter real-time storehouse.
Described tuning controller is arranged in the data of each air-blower control terminal and is sent the cycle by the method for subscribing to, when actual motion, tuning controller no longer carries out data calling, and is regularly initiatively gone up the real time execution information of forced draft fan according to subscription period by air-blower control terminal; On the basis of subscribing mechanism, air-blower control terminal increases to change in active again send mechanism, and air-blower control terminal can arrange the threshold values sending in data variation, send, to make up the deficiency of sending in timing when data variation exceedes threshold values.
Described tuning controller is realized power control by distributing blower fan is carried out to start and stop, adopts N+1 strategy to choose corresponding wind-powered electricity generation unit and carries out start stop operation, specific as follows:
Tuning controller is realized power control by distributing blower fan is carried out to start and stop, first controlled distributing blower fan is sorted, and wherein the blower fan in running status, according to carrying out descending running time, is referred to as operation queue; Wherein the blower fan in holding state carries out descending according to dwell time, is referred to as standby queue; Do not participate in sequence in the blower fan of shutdown and malfunction;
When total active power of distributing blower fan is lower than the active power instruction of power-management centre under tuning controller detects, carry out power per liter control, the active power difference of setting is between the two Δ P
u, total active power of setting N Fans in the standby queue of starting by sequence is ∑ P
n, in the standby queue of starting by sequence, total active power of N+1 Fans is ∑ P
n+1, the blower fan for the treatment of in fleet row calculates, as the ∑ P that satisfies condition
n≤ Δ P
u< ∑ P
n+1time, just can determine N value; Then continue poll in standby queue, find 1 Fans to make this Fans also start rear all distributing blower fan active power sums and active power instruction the most approaching and do not exceed, if can not find such blower fan, only start N Fans, otherwise just start N+1 Fans;
When total active power of distributing blower fan is lower than the active power instruction of power-management centre under tuning controller detects, fall power control, the active power difference of setting is between the two Δ P
d, total active power of setting N Fans in queue out of service is in order ∑ P
n, in queue out of service, total active power of N+1 Fans is ∑ P in order
n+1; Blower fan in operation queue is calculated, as the ∑ P that satisfies condition
n< Δ P
d≤ ∑ P
n+1time, just can determine N value.Then continue poll in operation queue, find 1 Fans to make this Fans also stop rear all distributing blower fan active power sums and active power instruction the most approaching and do not exceed, then stop this N+1 Fans.
Advantage of the present invention is as follows:
1) realized the monitoring to distributing blower fan by the ripe GPRS communication technology;
2) adopt various ways to solve the security protection problem of GPRS public network access power dispatch data network;
A) tuning controller and air-blower control terminal are embedded controller, and application program is that disposable compiling generates, and does not allow dynamic load, has stopped virus infraction;
B) tuning controller and air-blower control terminal have realized the conversion of different communication medium (RS485 serial ports and GPRS), and two kinds of communication modes carry out data interaction based on real-time storehouse, have strengthened security protection ability with the principle of non-Network Communication;
C) GPRS cordless communication network self possesses certain cryptographic capabilities.The secrecy transmission of setting up superencipher tunnel and carry out on this basis data with the symmetric encipherment algorithm that meets IDEA standard, has strengthened reliability;
D) for deciphering after data carry out application level scope check after reenter real-time storehouse, further strengthened reliability;
3) GPRS communication is carried out two-way charging according to flow, and the subscribing mechanism that the present invention adopts has effectively reduced GPRS flow; Adopt the mechanism of sending in data variation active simultaneously, ensured the refresh rate of significant data;
4) the N+1 control strategy adopting has effectively ensured active power control precision, has realized the even start and stop of blower fan simultaneously, contributes to maintain the harmony of distributing blower fan life cycle.
Brief description of the drawings
Fig. 1 is control system structure chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further illustrated.
Be illustrated in figure 1 wind turbine group control system structure chart of the present invention.Formed by M (M<500) Fans control terminal and 1 tuning controller.Wherein tuning controller is positioned over region transformer station electric room, and air-blower control terminal is positioned over fan engine room.
Air-blower control terminal adopts embedded system, and its program is that disposable compiling generates, any module of dynamic load that do not allow in service.Air-blower control terminal is carried out exchanges data by RS485 serial ports and blower fan master control system downwards, by the real-time storehouse of the data typing of obtaining from blower fan master control system oneself.In the time detecting that the subscription time of system controller arrives, will in all data actives, give tuning controller; In the time detecting that significant data amplitude of variation exceedes the set point of tuning controller, initiatively tuning controller will be given on delta data.When sending data, air-blower control terminal adopt the symmetric encipherment algorithm that meets IDEA standard to be encrypted transmission.When air-blower control terminal receives the order that tuning controller issues, be first decrypted, then carry out the data of application layer and check, all by the rear blower fan master control system that control command is transmitted to.
The point table of air-blower control terminal and the data interaction of blower fan master control system is as follows:
The point table of air-blower control terminal and tuning controller data interaction is as follows:
Tuning controller also adopts embedded system, and its program is that disposable compiling generates, any module of dynamic load that do not allow in service.The mode that tuning controller is communicated by letter by GPRS is downwards obtained the real time execution information of distributing blower fan, tuning controller start after just initiatively set each distributing blower fan subscription period and variation on send threshold values.When tuning controller receives the data of sending in air-blower control terminal, be first decrypted, then carry out application layer data check, all by rear by the real-time storehouse of data typing oneself.Tuning controller upwards communicates by RS485 serial ports and telemechanical supervisor, thereby will in the real time execution information of distributing blower fan, give power-management centre.
The point table that tuning controller carries out data interaction by telemechanical supervisor and power-management centre is as follows:
Tuning controller receives after total active power instruction of power-management centre for affiliated distributing blower fan, adopts N+1 control strategy to distribute.Specific as follows:
1) tuning controller is realized overall power control by distributing blower fan being carried out to start stop operation;
2) tuning controller sorts controlled distributing blower fan.Wherein the blower fan in running status, according to carrying out descending running time, is referred to as operation queue; Wherein the blower fan in holding state carries out descending according to dwell time, is referred to as standby queue; Do not participate in sequence in the blower fan of shutdown and malfunction;
3) when total reality of distributing blower fan is sent out active power lower than total active power instruction of power-management centre under tuning controller detects, carry out power per liter control, the active power difference of setting is between the two Δ P
u, total active power of setting N Fans in the standby queue of starting by sequence is ∑ P
n, in the standby queue of starting by sequence, total active power of N+1 Fans is ∑ P
n+1.The blower fan for the treatment of in fleet row calculates, as the ∑ P that satisfies condition
n≤ Δ P
u< ∑ P
n+1time, just can determine N value.Then continue poll in standby queue, find 1 Fans to make this Fans also start rear all distributing blower fan active power sums and active power instruction the most approaching and do not exceed, if can not find such blower fan, only start N Fans, otherwise just start N+1 Fans;
4) when total reality of distributing blower fan is sent out active power lower than total active power instruction of power-management centre under tuning controller detects, fall power control, the active power difference of setting is between the two Δ P
d, total active power of setting N Fans in queue out of service is in order ∑ P
n, in queue out of service, total active power of N+1 Fans is ∑ P in order
n+1.Blower fan in operation queue is calculated, as the ∑ P that satisfies condition
n< Δ P
d≤ ∑ P
n+1time, just can determine N value.Then continue poll in operation queue, find 1 Fans to make this Fans also stop rear all distributing blower fan active power sums and active power instruction the most approaching and do not exceed, then stop this N+1 Fans;
5), after being assigned, tuning controller sends corresponding on off control instruction to air-blower control terminal;
6) total reality of the affiliated distributing blower fan of tuning controller Real-Time Monitoring is sent out total active power instruction of active power and power-management centre, in the time that both differences exceed set point, repeats said process.
The present patent application people has done detailed explanation and description in conjunction with Figure of description to embodiments of the invention; but those skilled in the art should understand that; above embodiment is only the preferred embodiments of the invention; detailed explanation is just in order to help reader to understand better spirit of the present invention; and be not limiting the scope of the invention; on the contrary, within any any improvement of doing based on invention spirit of the present invention or modification all should drop on protection scope of the present invention.
Claims (5)
1. a wind turbine group control system, is characterized in that: described control system is made up of air-blower control terminal and tuning controller, carries out data interaction between the two by GPRS network.
2. a wind turbine group control system, described control system is made up of M Fans control terminal and 1 tuning controller, wherein, 1<M<500; It is characterized in that:
Described tuning controller is positioned over region transformer station electric room, and air-blower control terminal is positioned over fan engine room;
Described air-blower control terminal is carried out exchanges data by RS485 serial ports and blower fan master control system downwards, is upwards communicated by letter and is carried out data interaction with tuning controller by GPRS;
Air-blower control terminal sends the real-time running data of blower fan to tuning controller, and the start and stop instruction that tuning controller is issued is transmitted to blower fan master control system;
The mode that described tuning controller is communicated by letter by GPRS is downwards obtained the real time execution information of distributing blower fan, upwards communicate by RS485 serial ports and telemechanical supervisor, thereby by virtual multiple distributing blower fans be a wind-powered electricity generation group of planes, and will in real time execution information, give power-management centre, receive the total active power instruction of power-management centre for a virtual wind-powered electricity generation group of planes simultaneously, then distribute in affiliated distributing blower fan according to the set control strategy of active power, and send instruction to air-blower control terminal.
3. control system according to claim 2, is characterized in that:
Tuning controller and air-blower control terminal are embedded controller, and application program is that disposable compiling generates, and does not allow dynamic load;
Tuning controller and air-blower control terminal have realized the conversion of different communication medium, i.e. RS485 serial ports and GPRS, and two kinds of communication modes carry out data interaction based on real-time storehouse;
The built-in symmetric encipherment algorithm that meets IDEA standard of tuning controller and air-blower control terminal, the data of communication interaction are with the mode transmission of ciphertext.
4. control system according to claim 2, is characterized in that:
Tuning controller is arranged on the real-time running data of each air-blower control terminal and is sent the cycle by the method for subscribing to, when actual motion, tuning controller no longer carries out data calling, and is regularly initiatively gone up the real-time running data of forced draft fan according to subscription period by air-blower control terminal;
On the basis of subscribing mechanism, air-blower control terminal increases to change in active again send mechanism, and air-blower control terminal arranges the threshold values sending in data variation, gives this service data when the real-time running data variation of wind-powered electricity generation unit exceedes threshold values.
5. control system according to claim 2, is characterized in that:
The preferred active power N+1 control strategy of described set control strategy, it thes contents are as follows:
Tuning controller is realized power control by distributing blower fan is carried out to start and stop, first controlled distributing blower fan is sorted, and wherein the blower fan in running status, according to carrying out descending running time, is referred to as operation queue; Wherein the blower fan in holding state carries out descending according to dwell time, is referred to as standby queue; Do not participate in sequence in the blower fan of shutdown and malfunction;
When total active power of distributing blower fan is lower than the active power instruction of power-management centre under tuning controller detects, carry out power per liter control, the active power difference of setting is between the two Δ P
u, total active power of setting N Fans in the standby queue of starting by sequence is ∑ P
n, in the standby queue of starting by sequence, total active power of N+1 Fans is ∑ P
n+1, the blower fan for the treatment of in fleet row calculates, as the ∑ P that satisfies condition
n≤ Δ P
u< ∑ P
n+1when part, just can determine N value; Then continue poll in standby queue, find 1 Fans to make this Fans also start rear all distributing blower fan active power sums and active power instruction the most approaching and do not exceed, if can not find such blower fan, only start N Fans, otherwise just start N+1 Fans;
When total active power of distributing blower fan is lower than the active power instruction of power-management centre under tuning controller detects, fall power control, the active power difference of setting is between the two Δ P
d, total active power of setting N Fans in queue out of service is in order ∑ P
n, in queue out of service, total active power of N+1 Fans is ∑ P in order
n+1; Blower fan in operation queue is calculated, as the ∑ P that satisfies condition
n< Δ P
d≤ ∑ P
n+1time, just can determine N value.Then continue poll in operation queue, find 1 Fans to make this Fans also stop rear all distributing blower fan active power sums and active power instruction the most approaching and do not exceed, then stop this N+1 Fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378025.5A CN104113088A (en) | 2014-08-04 | 2014-08-04 | Wind power cluster control system |
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|---|---|---|---|
| CN201410378025.5A CN104113088A (en) | 2014-08-04 | 2014-08-04 | Wind power cluster control system |
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| CN104113088A true CN104113088A (en) | 2014-10-22 |
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| CN201410378025.5A Pending CN104113088A (en) | 2014-08-04 | 2014-08-04 | Wind power cluster control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615102A (en) * | 2014-12-22 | 2015-05-13 | 北京天诚同创电气有限公司 | Wind generating set management system and method for wind power plant |
| CN105137350A (en) * | 2015-07-24 | 2015-12-09 | 南京华盾电力信息安全测评有限公司 | Wind turbine generator set performance monitoring method based on eight states |
| CN109274766A (en) * | 2018-10-30 | 2019-01-25 | 浙江理工大学 | It is a kind of for being knitted the data subscription method and device of interconnection plane |
| WO2023071275A1 (en) * | 2021-10-29 | 2023-05-04 | 青岛海尔空调电子有限公司 | Group control system control method and device, and medium |
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| EP2075463A2 (en) * | 2007-12-27 | 2009-07-01 | Gamesa Innovation & Technology, S.L. | Wind power installation and method of operating it |
| CN101719676A (en) * | 2008-10-09 | 2010-06-02 | 通用电气公司 | Voltage control at windfarms |
| CN103324179A (en) * | 2013-06-18 | 2013-09-25 | 国家电网公司 | Distributed-type wind power plant integrated monitoring system based on wireless network |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075463A2 (en) * | 2007-12-27 | 2009-07-01 | Gamesa Innovation & Technology, S.L. | Wind power installation and method of operating it |
| CN101719676A (en) * | 2008-10-09 | 2010-06-02 | 通用电气公司 | Voltage control at windfarms |
| CN103324179A (en) * | 2013-06-18 | 2013-09-25 | 国家电网公司 | Distributed-type wind power plant integrated monitoring system based on wireless network |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615102A (en) * | 2014-12-22 | 2015-05-13 | 北京天诚同创电气有限公司 | Wind generating set management system and method for wind power plant |
| CN104615102B (en) * | 2014-12-22 | 2017-06-16 | 北京天诚同创电气有限公司 | Wind generating set management system and method for wind power plant |
| CN105137350A (en) * | 2015-07-24 | 2015-12-09 | 南京华盾电力信息安全测评有限公司 | Wind turbine generator set performance monitoring method based on eight states |
| CN105137350B (en) * | 2015-07-24 | 2018-11-30 | 南京华盾电力信息安全测评有限公司 | A kind of wind power generating set performance monitoring method based on eight states |
| CN109274766A (en) * | 2018-10-30 | 2019-01-25 | 浙江理工大学 | It is a kind of for being knitted the data subscription method and device of interconnection plane |
| WO2023071275A1 (en) * | 2021-10-29 | 2023-05-04 | 青岛海尔空调电子有限公司 | Group control system control method and device, and medium |
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Application publication date: 20141022 |