CN114189042A - Backup power control system of offshore wind turbine generator and power starting and stopping method thereof - Google Patents
Backup power control system of offshore wind turbine generator and power starting and stopping method thereof Download PDFInfo
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- CN114189042A CN114189042A CN202111347298.XA CN202111347298A CN114189042A CN 114189042 A CN114189042 A CN 114189042A CN 202111347298 A CN202111347298 A CN 202111347298A CN 114189042 A CN114189042 A CN 114189042A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 6
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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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
- F03D7/00—Controlling wind motors
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H04L69/26—Special purpose or proprietary protocols or architectures
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- G—PHYSICS
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/40—Remote control systems using repeaters, converters, gateways
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
Abstract
The invention discloses an offshore wind turbine backup power control system and a power supply starting and stopping method thereof. The invention can remotely control the diesel generator of the backup power supply of the wind turbine generator through the monitoring platform under the conditions of power loss of the wind turbine generator in typhoon, power loss of the offshore wind turbine generator and the like, thereby ensuring the safety of the wind turbine generator in typhoon.
Description
Technical Field
The invention relates to the technical field of offshore generator set backup power supply control, in particular to an offshore wind turbine set backup power supply control system based on a Beidou communication technology and a backup power supply starting and stopping method thereof.
Background
Along with the development of coastal wind power generation sets and offshore wind power generation sets, the risk of typhoon damage is increased. In the prior art, the communication with the backup power supply of the offshore wind turbine generator set is mainly realized through wireless communication networks such as 4G, and the remote start of the backup power supply is realized, so that the wind turbine generator set is prevented from being damaged by typhoon through controlling the yaw of the wind turbine generator. However, the wireless communication network base station located at the sea is easily attacked by typhoon, the maintenance cost is high, and the defects that the signal is weak or even no signal exists in the open sea wind turbine generator set, and the like, and in addition, the wireless communication network is easily affected by wind and rain to cause a rain attenuation phenomenon during typhoon, and information transmission can be interfered.
After the offshore wind turbine generator is hoisted, the condition that the offshore wind turbine generator is out of power, such as grid connection debugging is not carried out or a current collecting circuit is not laid is not carried out, if typhoon attacks, wireless communication network signals such as 4G are affected by the typhoon signals unstably, personnel can not go out of the sea, the start of the diesel generator of the backup power supply of the offshore wind turbine generator can not be controlled during the typhoon period, the mode of preventing the offshore wind turbine generator from typhoon is started, and therefore a system which can stably and remotely control the start and stop of the diesel generator of the backup power supply of the offshore wind turbine generator during the typhoon period is urgently needed. The Beidou satellite navigation system is a navigation system independently developed in China, the Beidou communication technology is widely applied to the commercial field, the user message with fixed bytes can be transmitted in a long distance in a short message communication mode, the Beidou satellite navigation system has the advantages of low error rate, long transmission distance and the like, and the Beidou satellite navigation system has wide prospects in the field of development and application of the Beidou satellite navigation system to the control of backup power supplies of offshore wind turbine generators.
Disclosure of Invention
The invention provides an offshore wind turbine generator backup power supply control system based on Beidou communication technology and a backup power supply starting and stopping method thereof, aiming at the problems that information transmission of a 4G wireless communication network and the like is easily interfered by wind and rain, a coastal base station is easily attacked by typhoon, the maintenance cost and the equipment cost of the 4G wireless communication technology are high, and weak signals and even no signals exist in the open sea.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a backup power supply control system of an offshore wind turbine generator system comprises a diesel generator and comprises a control end and a field end, wherein the control end comprises a monitoring platform and a first Beidou short message receiving and transmitting module, the field end comprises a generator controller and a second Beidou short message receiving and transmitting module, and a Beidou satellite is used as an intermediate link of short message transmission between the control end and the field end;
the monitoring platform is used for sending an instruction for controlling the start or stop of the diesel generator and receiving information whether the diesel generator is started or stopped;
the first Beidou short message receiving and transmitting module is used for converting the instruction sent by the monitoring platform into a short message according to a specified protocol and then sending the short message to the Beidou satellite, receiving the short message sent by the Beidou satellite and converting the short message into an instruction according to the specified protocol and sending the instruction to the monitoring platform;
the second Beidou short message receiving and transmitting module is used for converting a short message sent by the Beidou satellite into a generator control instruction according to a specified protocol and sending the generator control instruction to the generator controller, and converting information sent by the generator controller into a short message according to the specified protocol;
the generator controller receives an instruction sent by the second Beidou short message transceiving module to control the diesel generator to start or stop, and transmits information about whether the diesel generator is started or stopped back to the monitoring platform; the diesel generator is started or stopped to supply power or cut off power to a yaw motor of the wind turbine generator, and the yaw motor achieves yaw through rotation after obtaining power supply of the diesel generator.
Preferably, the first Beidou short message transceiving module and the monitoring platform are powered by a power grid.
Preferably, the second Beidou short message transceiving module and the generator controller are powered by a storage battery; when the diesel generator is started, the power can be supplied to the yaw motor and the storage battery at the same time, so that the normal operation of the yaw motor is guaranteed, and the electric quantity stored in the storage battery is maintained at a high level.
Preferably, the monitoring platform is composed of a server and a display screen, the server is used for storing, receiving and sending information, and the display screen is used for displaying whether the diesel generator is started or stopped.
The invention also provides a backup power supply starting method of the backup power supply control system of the offshore wind turbine generator system, which comprises the following steps:
1) starting an anti-typhoon mode during typhoon; the monitoring platform sends a starting instruction for controlling the diesel generator, the starting instruction is sent to the first Beidou short message receiving and sending module, and the first Beidou short message receiving and sending module receives the starting instruction, converts the starting instruction into a short message according to a specified protocol and sends the short message to the Beidou satellite;
2) the Beidou satellite sends the received short message to a second Beidou short message receiving and sending module;
3) the second Beidou short message receiving and sending module receives the short message, converts the short message into a generator starting instruction according to a specified protocol and sends the generator starting instruction to the generator controller, and the generator controller receives the instruction to control the diesel generator to start and supply power to the yaw motor;
4) after the diesel generator is started, the generator controller transmits the started information of the generator back to a second Beidou short message receiving and transmitting module, converts the started information into short messages according to a specified protocol and transmits the short messages to a Beidou satellite;
5) the Beidou satellite sends the short message to a first Beidou short message receiving and sending module;
6) the first Beidou short message receiving and sending module receives the short message, converts the short message into started information according to a specified protocol and sends the started information to the monitoring platform, and finally the started information of the diesel generator is displayed on the monitoring platform.
The invention also provides a backup power supply stopping method of the backup power supply control system of the offshore wind turbine generator system, which comprises the following steps:
1) the monitoring platform sends a stop instruction for controlling the diesel generator, the stop instruction is sent to the first Beidou short message receiving and sending module, and the first Beidou short message receiving and sending module receives the stop instruction, converts the stop instruction into a short message according to a specified protocol and sends the short message to the Beidou satellite;
2) the Beidou satellite sends the received short message to a second Beidou short message receiving and sending module;
3) the second Beidou short message receiving and sending module receives the short message, converts the short message into a generator stopping instruction according to a specified protocol and sends the generator stopping instruction to the generator controller, and the generator controller receives the instruction to control the diesel generator to stop running and stop supplying power to the yaw motor;
4) after the diesel generator stops, the generator controller returns generator stop information to a second Beidou short message receiving and transmitting module, converts the stop information into short messages according to a specified protocol and transmits the short messages to a Beidou satellite;
5) the Beidou satellite sends the short message to a first Beidou short message receiving and sending module;
6) the first Beidou short message receiving and sending module receives the short message and then converts the short message into stopped information according to a specified protocol and sends the stopped information to the monitoring platform, and finally the stopped information of the diesel generator is displayed on the monitoring platform.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the cost is low, and compared with wireless communication networks such as 4G, the base station maintenance cost is reduced, and the Beidou communication equipment is low in price.
2. The coverage is wide, the Beidou system realizes global coverage at present, the Beidou communication range can cover the open sea, and the problem that open sea signals are weak or no signals exists.
3. The anti-interference capability is strong, the Beidou satellite signals adopt L/S wave bands, the influence of rain attenuation is small, and the influence of wind and rain is small during typhoon.
Based on the advantages, the remote control system can remotely control the diesel generator of the backup power supply of the offshore wind turbine generator through the monitoring platform under the conditions of power loss of the offshore wind turbine generator and the like in the typhoon period based on the Beidou communication technology, so that the safety of the offshore wind turbine generator in the typhoon period is guaranteed.
Drawings
FIG. 1 is an architectural diagram of the system of the present invention.
Fig. 2 is a structural diagram of a control end.
Fig. 3 is a diagram of a site end structure.
FIG. 4 is a control flow diagram of the system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1, the offshore wind turbine generator system backup power control system provided by the embodiment comprises a control end and a field end, wherein the control end comprises a monitoring platform and a first big dipper short message transceiver module, the field end comprises a generator controller and a second big dipper short message transceiver module, physical interfaces of the first big dipper short message transceiver module and the second big dipper short message transceiver module are RS485 interfaces, and the control end and the field end are connected through a big dipper satellite as an intermediate link of short message transmission. Wherein:
the monitoring platform is used for sending an instruction for controlling the starting or stopping of the diesel generator of the backup power supply and receiving information whether the diesel generator is started or stopped;
the first Beidou short message receiving and transmitting module is used for converting the instruction sent by the monitoring platform into a short message according to a specified protocol and then sending the short message to the Beidou satellite, receiving the short message sent by the Beidou satellite and converting the short message into an instruction according to the specified protocol and sending the instruction to the monitoring platform;
the second Beidou short message receiving and transmitting module is used for converting a short message sent by the Beidou satellite into a generator control instruction according to a specified protocol and sending the generator control instruction to the generator controller, and converting information sent by the generator controller into a short message according to the specified protocol;
the generator controller receives an instruction sent by the second Beidou short message transceiving module to control the diesel generator to start or stop, and transmits information about whether the diesel generator is started or stopped back to the monitoring platform; the diesel generator is started or stopped to supply power or cut off power to a yaw motor of the wind turbine generator, and the yaw motor achieves yaw through rotation after obtaining power supply of the diesel generator.
Referring to fig. 2, the first beidou short message transceiver module and the monitoring platform are powered by a power grid.
Referring to fig. 3, the second beidou short message transceiver module and the generator controller are powered by a storage battery; when the diesel generator is started, the power can be supplied to the yaw motor and the storage battery at the same time, so that the normal operation of the yaw motor is guaranteed, and the electric quantity stored in the storage battery is maintained at a high level.
When the typhoon comes, if the offshore wind turbine generator is hoisted and not debugged and grid-connected or a current collecting circuit is not laid and the like, the offshore wind turbine generator cannot automatically yaw at the moment, and the typhoon prevention mode is started by a diesel generator of a backup power supply to realize the yaw.
According to meteorological data, the monitoring platform judges the yaw angle required to be realized by each wind turbine generator, determines the working time of the corresponding diesel generator, and sends starting and stopping information to the generator controller. The second Beidou short message receiving and transmitting module of each offshore wind turbine generator set is provided with a uniquely determined identification code, so that the first Beidou short message receiving and transmitting module can conveniently transmit data with the second Beidou short message receiving and transmitting module. The identification code may be a card number or a device number.
The server of the monitoring platform is connected with the first Beidou short message receiving and sending module through a serial port, and the monitoring platform and the Beidou short message receiving and sending module both utilize a power grid as a power supply. Referring to fig. 4, firstly, the monitoring platform sends an instruction containing the start or stop of the generator to the first beidou short message transceiver module, and the instruction contains the address of the corresponding second beidou short message transceiver module, information for controlling the start of the diesel generator and additional information. After receiving the instruction from the monitoring platform, the first Beidou short message receiving and transmitting module arranges the instruction according to a general data interface 4.0 protocol of a Beidou satellite navigation method, and transmits the instruction to the second Beidou short message receiving and transmitting module of each offshore wind turbine generator set at the site end in a short message form through a Beidou satellite.
After receiving corresponding short message information, each second Beidou short message receiving and transmitting module at the site end unpacks according to the general data interface 4.0 protocol of the Beidou satellite navigation method to obtain a corresponding instruction and transmits the corresponding instruction to the generator controller. The generator controller is connected with the second Beidou short message receiving and transmitting module at the field end through a serial port. The generator controller analyzes the instruction, if the instruction is a starting instruction, the diesel generator is controlled to be started to supply power to the yaw motor, and if the instruction is a stopping instruction, the diesel generator is controlled to stop supplying power to the yaw motor. The second Beidou short message transceiver module of the site end and the power supply of the generator controller come from the storage battery, and after the diesel generator is started, the power supply can be supplied to the yaw motor and the storage battery at the same time, so that the reliable and stable operation of each device of the site end is guaranteed.
After the diesel generator is started or stopped, the generator controller transmits the information that the diesel generator is started or stopped back to the monitoring platform according to the reverse mode and displays the information on the display of the monitoring platform.
Through the mode, the offshore wind turbine generator can be started by utilizing the Beidou communication technology under the condition of power loss such as no grid connection or no laying of a current collection circuit and the like during the typhoon, and the offshore wind turbine generator can be controlled to yaw, so that the safety of the offshore wind turbine generator during the typhoon is guaranteed.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. The utility model provides an offshore wind turbine generator system back-up source control system, back-up source contains diesel generator, its characterized in that: the system comprises a control end and a field end, wherein the control end comprises a monitoring platform and a first Beidou short message receiving and transmitting module, the field end comprises a generator controller and a second Beidou short message receiving and transmitting module, and a Beidou satellite is used between the control end and the field end as an intermediate link of short message transmission;
the monitoring platform is used for sending an instruction for controlling the start or stop of the diesel generator and receiving information whether the diesel generator is started or stopped;
the first Beidou short message receiving and transmitting module is used for converting the instruction sent by the monitoring platform into a short message according to a specified protocol and then sending the short message to the Beidou satellite, receiving the short message sent by the Beidou satellite and converting the short message into an instruction according to the specified protocol and sending the instruction to the monitoring platform;
the second Beidou short message receiving and transmitting module is used for converting a short message sent by the Beidou satellite into a generator control instruction according to a specified protocol and sending the generator control instruction to the generator controller, and converting information sent by the generator controller into a short message according to the specified protocol;
the generator controller receives an instruction sent by the second Beidou short message transceiving module to control the diesel generator to start or stop, and transmits information about whether the diesel generator is started or stopped back to the monitoring platform; the diesel generator is started or stopped to supply power or cut off power to a yaw motor of the wind turbine generator, and the yaw motor achieves yaw through rotation after obtaining power supply of the diesel generator.
2. The offshore wind turbine farm backup power control system of claim 1, wherein: the first Beidou short message transceiving module and the monitoring platform are powered by a power grid.
3. The offshore wind turbine farm backup power control system of claim 1, wherein: the second Beidou short message transceiving module and the generator controller are powered by a storage battery; when the diesel generator is started, the power can be supplied to the yaw motor and the storage battery at the same time, so that the normal operation of the yaw motor is guaranteed, and the electric quantity stored in the storage battery is maintained at a high level.
4. The utility model provides an offshore wind turbine generator system reserve power control system which characterized in that: the monitoring platform consists of a server and a display screen, wherein the server is used for storing, receiving and sending information, and the display screen is used for displaying whether the diesel generator is started or stopped.
5. A method for starting a backup power supply of a backup power supply control system of an offshore wind turbine unit according to any of claims 1 to 4, comprising the steps of:
1) starting an anti-typhoon mode during typhoon; the monitoring platform sends a starting instruction for controlling the diesel generator, the starting instruction is sent to the first Beidou short message receiving and sending module, and the first Beidou short message receiving and sending module receives the starting instruction, converts the starting instruction into a short message according to a specified protocol and sends the short message to the Beidou satellite;
2) the Beidou satellite sends the received short message to a second Beidou short message receiving and sending module;
3) the second Beidou short message receiving and sending module receives the short message, converts the short message into a generator starting instruction according to a specified protocol and sends the generator starting instruction to the generator controller, and the generator controller receives the instruction to control the diesel generator to start and supply power to the yaw motor;
4) after the diesel generator is started, the generator controller transmits the started information of the generator back to a second Beidou short message receiving and transmitting module, converts the started information into short messages according to a specified protocol and transmits the short messages to a Beidou satellite;
5) the Beidou satellite sends the short message to a first Beidou short message receiving and sending module;
6) the first Beidou short message receiving and sending module receives the short message, converts the short message into started information according to a specified protocol and sends the started information to the monitoring platform, and finally the started information of the diesel generator is displayed on the monitoring platform.
6. A method for stopping a backup power supply of a backup power supply control system of an offshore wind turbine unit according to any of claims 1 to 4, comprising the steps of:
1) the monitoring platform sends a stop instruction for controlling the diesel generator, the stop instruction is sent to the first Beidou short message receiving and sending module, and the first Beidou short message receiving and sending module receives the stop instruction, converts the stop instruction into a short message according to a specified protocol and sends the short message to the Beidou satellite;
2) the Beidou satellite sends the received short message to a second Beidou short message receiving and sending module;
3) the second Beidou short message receiving and sending module receives the short message, converts the short message into a generator stopping instruction according to a specified protocol and sends the generator stopping instruction to the generator controller, and the generator controller receives the instruction to control the diesel generator to stop running and stop supplying power to the yaw motor;
4) after the diesel generator stops, the generator controller returns generator stop information to a second Beidou short message receiving and transmitting module, converts the stop information into short messages according to a specified protocol and transmits the short messages to a Beidou satellite;
5) the Beidou satellite sends the short message to a first Beidou short message receiving and sending module;
6) the first Beidou short message receiving and sending module receives the short message and then converts the short message into stopped information according to a specified protocol and sends the stopped information to the monitoring platform, and finally the stopped information of the diesel generator is displayed on the monitoring platform.
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