CN117419469A - Heliostat control system and method - Google Patents
Heliostat control system and method Download PDFInfo
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- CN117419469A CN117419469A CN202311179007.XA CN202311179007A CN117419469A CN 117419469 A CN117419469 A CN 117419469A CN 202311179007 A CN202311179007 A CN 202311179007A CN 117419469 A CN117419469 A CN 117419469A
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- 238000004891 communication Methods 0.000 claims abstract description 85
- 230000009347 mechanical transmission Effects 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/20—Control of position or direction using feedback using a digital comparing device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
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- Sustainable Energy (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention belongs to the technical field of heliostats, and particularly relates to a heliostat control system and method. The technical proposal is as follows: the heliostat control system comprises an upper controller, wherein the upper controller is in communication connection with a cluster controller, a power supply communication board is arranged on an upright post of the heliostat, the cluster controller is in communication series connection with the power supply communication boards on a plurality of heliostats in sequence, a star-shaped connector electrically connected with the power supply communication boards is further arranged on the upright post of the heliostat, the star-shaped controller is electrically connected with a plurality of execution controllers, the execution controllers are electrically connected with an execution motor, and an output shaft of the execution motor is connected with an input end of a mechanical transmission device of the heliostat. The invention provides a heliostat control system and a heliostat control method for cooperatively controlling a plurality of heliostats by adopting a cluster controller.
Description
Technical Field
The invention belongs to the technical field of heliostats, and particularly relates to a heliostat control system and method.
Background
In recent years, with the growing tension of fossil energy sources such as coal, petroleum, natural gas and the like and the increasingly prominent environmental problems, the generation of new clean energy sources such as solar energy, wind energy, biomass energy and the like is attracting attention. The tower type solar photo-thermal power generation technology is used as one of main power generation modes in solar power generation, and the basic principle is as follows: the sunlight is reflected to the heat collector at the top of the high tower by utilizing a mirror field formed by a plurality of heliostats, working media in the heat collector are heated, and the working media undergo links such as heat storage, heat exchange and the like to generate steam to drive the steam turbine generator to generate electricity.
The lens field is an energy collecting end of the tower type photo-thermal power station, and is large in scale, large in number of heliostats and high in investment cost, and is a main characteristic. In order to ensure the efficient operation of the concentrating and heat collecting system, the tracking angle of the heliostat of the whole heliostat field needs to be adjusted in real time, so that solar radiation can be maximally reflected on the heat collector, the reflecting light spot position of the heliostat needs to be adjusted in real time to ensure the operation safety of the heat absorber, and the mirror surface gesture of the heliostat needs to be controlled in real time by an automatic control system.
However, the following problems are common in current heliostat field heliostat control techniques:
first, engineering cost is high: to meet complex operating conditions, heliostat in-situ controllers often require complex calculations and high real-time requirements. For this reason, in the prior art, a set of independent control systems is often configured for each heliostat, including a controller, an execution motor driver, a power module, a control box, and the like. The number of controllers is large, and the control system is complex, so that the requirements on a control box are higher, and the manufacturing cost of the whole mirror field control system is higher.
Secondly, the field installation workload is large: the existing heliostat local control system needs to connect a signal output cable of an execution motor to an IO port of a driver, and is additionally connected with cables such as power distribution, communication and the like, so that the field installation workload is large, equipment error reporting or damage is easily caused by the problems of wiring line sequence errors, terminal virtual connection and the like, and the requirement on installers is high, and time and labor are wasted.
Thirdly, the equipment debugging and maintenance difficulties are large: each heliostat is independently provided with a set of control system, so that the controllers are distributed and dispersed in the heliostat field, and the system debugging and maintenance difficulty is high.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a heliostat control system and method for cooperatively controlling a plurality of heliostats by using a cluster controller.
The technical scheme adopted by the invention is as follows:
the heliostat control system comprises an upper controller, wherein the upper controller is in communication connection with a cluster controller, a power supply communication board is arranged on an upright post of the heliostat, the cluster controller is in communication series connection with the power supply communication boards on a plurality of heliostats in sequence, a star-shaped connector electrically connected with the power supply communication boards is further arranged on the upright post of the heliostat, the star-shaped controller is electrically connected with a plurality of execution controllers, the execution controllers are electrically connected with an execution motor, and an output shaft of the execution motor is connected with an input end of a mechanical transmission device of the heliostat.
The cluster controller is internally provided with all control algorithms such as characteristic parameters, tracking control, offset correction and the like of all heliostats on the cluster, and the accurate calculation of the action positions of the heliostat executing motors is completed according to the control instructions of the superior controller, so that the cooperative control of all heliostat executing motors on the cluster is realized, and the mirror surfaces of the heliostats are adjusted.
The invention adopts the cluster controller to realize cooperative control on a plurality of heliostats in the area, greatly optimizes the number of heliostat controllers and reduces the construction cost of the system to a certain extent. According to the heliostat control system provided by the invention, the cluster controllers are arranged in the heliostat field group-level communication station in a centralized manner, so that the distribution range of the controllers is controlled to a certain extent, and the heliostat field equipment debugging and maintenance are facilitated.
As a preferable scheme of the invention, the upper controller comprises an island controller and an upper computer which are electrically connected with each other.
As a preferable scheme of the invention, the superior controller is in communication connection with the cluster controller in a wired or wireless mode.
As a preferable scheme of the invention, the cluster controller is a PLC or a singlechip. The cluster controller refers to a PLC or a singlechip which contains a memory which is not lost when power is lost and has calculation capability, and is arranged in a lens field group level communication station in a group in a centralized way, and is internally provided with all control algorithms such as characteristic parameters, tracking control, offset correction and the like of all heliostats on the cluster.
As a preferable scheme of the invention, the cluster controller is in communication connection with the power supply communication board and the adjacent power supply communication boards in a wired or wireless mode.
As a preferable mode of the invention, the power supply communication board is arranged on the local side of the upright post of the heliostat. The heliostat control system provided by the invention optimizes the structure of the heliostat on-site side control system, and reduces the requirements on the materials and the size of the box body, thereby realizing the optimization of the production cost and the installation cost.
As a preferred embodiment of the present invention, the execution controller is integrally integrated with the execution motor. According to the heliostat control system provided by the invention, the execution controller and the execution motor are integrated integrally, so that the wiring of a control cable between the execution controller and the execution motor during field installation is avoided, and the risk of equipment damage caused by wiring errors is reduced. Only distribution cables and communication cables are arranged in the whole system network, so that the workload of field installation and wiring is greatly simplified.
As a preferable scheme of the invention, the number of the execution controllers electrically connected with the star controller is two, and the two execution controllers are respectively arranged at two sides of the heliostat.
As a preferable mode of the invention, the executing motor is a stepping motor or a direct current motor.
A heliostat control method comprising the steps of:
s1: the superior controller sends out a control instruction to the cluster controller;
s2: the cluster controller completes the accurate calculation of the action positions of the execution motors on all heliostats in the cluster according to the control instruction of the upper controller;
s3: the power supply distribution communication board realizes power supply voltage conversion so as to meet the working voltage requirement of the execution controller on the heliostat, receives communication data of the cluster controllers, directly forwards the communication data to a plurality of execution controllers on the heliostat, and returns the data to the cluster controllers by the execution controllers;
s4: the star-shaped connector supplies power and carries out communication switching on the power supply communication board and the execution controller;
s5: the execution controller receives the position set value of the execution motor forwarded from the power supply communication board and directly drives the execution motor to act;
s6: and executing the action of a mechanical transmission device of the heliostat driven by the motor so as to adjust the mirror surface angle of the heliostat.
The beneficial effects of the invention are as follows:
1. the invention adopts the cluster controller to realize cooperative control on a plurality of heliostats in the area, greatly optimizes the number of heliostat controllers and reduces the construction cost of the system to a certain extent.
2. According to the heliostat control system provided by the invention, the cluster controllers are arranged in the heliostat field group-level communication station in a centralized manner, so that the distribution range of the controllers is controlled to a certain extent, and the heliostat field equipment debugging and maintenance are facilitated.
3. According to the heliostat control system provided by the invention, the execution controller and the execution motor are integrated integrally, so that the wiring of a control cable between the execution controller and the motor during field installation is avoided, and the risk of equipment damage caused by wiring errors is reduced. Only distribution cables and communication cables are arranged in the whole system network, so that the workload of field installation and wiring is greatly simplified.
4. The heliostat control system provided by the invention optimizes the structure of the heliostat on-site side control system, and reduces the requirements on the materials and the size of the box body, thereby realizing the optimization of the production cost and the installation cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural diagram of a single heliostat.
In the figure: 1-cluster controller; 2-a power supply communication board; a 3-star connector; 4-an execution controller; 5-executing a motor; 6-heliostats; 61-stand columns; 62-mechanical transmission; 63-mirror.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
As shown in fig. 1 and 2, heliostat 6 includes a column 61, and a mechanical transmission 62 is rotatably connected to column 61, and a mirror 63 is mounted on mechanical transmission 62. The heliostat control system of the embodiment comprises a superior controller, wherein the superior controller is in communication connection with a cluster controller 1, a power supply communication board 2 is installed on an upright post 61 of each heliostat 6, the cluster controller 1 is in serial communication with the power supply communication boards 2 on a plurality of heliostats 6 in sequence, a star-shaped connector 3 which is electrically connected with the power supply communication board 2 is also installed on the upright post 61 of each heliostat 6, the star-shaped controller is electrically connected with a plurality of execution controllers 4, the execution controllers 4 are electrically connected with an execution motor 5, and an output shaft of the execution motor 5 is connected with an input end of a mechanical transmission device 62 of each heliostat 6.
The cluster controller 1 of the invention is internally provided with all control algorithms such as characteristic parameters, tracking control, offset correction and the like of all heliostats 6 on the cluster, and the accurate calculation of the action positions of the execution motors 5 on the heliostats 6 is completed according to the control instructions of the superior controller, so that the cooperative control of the execution motors 5 on all the heliostats 6 on the cluster is realized, and the mirror surfaces 63 of the heliostats 6 are adjusted.
The invention adopts the cluster controller 1 to realize cooperative control on a plurality of heliostats 6 in the area, greatly optimizes the number of heliostat controllers and reduces the construction cost of the system to a certain extent. According to the heliostat control system provided by the invention, the cluster controllers 1 are arranged in groups and concentrated at the mirror field group level communication station, so that the distribution range of the controllers is controlled to a certain extent, and the debugging and maintenance of mirror field equipment are facilitated.
The upper controller comprises an island controller, an upper computer and the like. The upper level controller is in communication connection with the cluster controller 1 in a wired or wireless mode. The upper level controller is an upper level controller of the cluster controller 1 and has a storage function of power failure without loss. The superior controller can communicate with the cluster controller 1 on the heliostat 6 by adopting optical fibers, network cables or wireless, and the communication protocol can transmit information by adopting Modbus TCP, profibus and the like.
The cluster controller 1 refers to a PLC or a singlechip which contains a power failure, does not lose a memory and has calculation capability, is arranged in a group and concentrated manner on a field group level communication station, and is internally provided with all characteristic parameters of all heliostats 6 on the cluster and all control algorithms such as tracking control, offset correction and the like. The cluster controller 1 completes accurate calculation of the action positions of the heliostat 6 executing motors 5 according to the control instructions of the upper-level controller, and realizes cooperative control of the executing motors 5 on all heliostats 6 on the cluster. The cluster controller 1 and the power supply communication board 2 are connected with each other and the adjacent power supply communication boards 2 are connected with each other in a wired or wireless mode. The cluster controller 1 can adopt a wired or wireless communication mode and receive information from the superior controller through a mirror field network, and send the information to the heliostat 6 controlled by the cluster controller through a shielding twisted pair, a network cable or a wireless mode, and the communication protocol can select Modbus RTU, CAN, profinet, etherCAT and the like.
The power supply communication board 2 is disposed on the local side of the upright post 61 of the heliostat 6, and one power supply communication board 2 is disposed on each heliostat 6. The power supply communication board 2 is required to realize power supply voltage conversion to meet the working voltage requirement of the heliostat 6 actuator, and simultaneously receives the communication data of the cluster controller 1 and directly forwards the communication data to a plurality of execution controllers 4 of the heliostat 6. The heliostat control system optimizes the structure of the on-site side control system of the heliostat 6, reduces the requirements on the materials and the size of the box body, and accordingly optimizes the production cost and the installation cost.
The power supply communication board 2 is used as a power supply and communication interface of the single heliostat 6, the power supply communication board 2 converts an input power supply into a power supply type required by each control device of the single heliostat 6 and outputs the power supply type to the star connector 3, communication is established between the power supply communication board 2 and the cluster controller 1 in a wired communication mode such as Modbus TCP/RTU, CAN and the like or a wireless transparent transmission mode, and the power supply communication board receives an upper control command and forwards the upper control command to the execution controller 4 through the star connector 3.
The star connector 3 is used for power supply and communication switching of the single heliostat 6, the star connector 3 shares multiple power supply and communication interfaces, multiple power supply and multiple communication interfaces are respectively connected in a star mode in the connector, the power supply and communication converted by the power supply and power supply communication board 2 are connected to one path of the star connector 3, and multiple paths of power supply and communication are separated by the star connector 3 and are respectively connected to the execution controllers 4.
The execution controller 4 can adopt a circuit design taking a singlechip, an FPGA and a CPLD as cores, and comprises: the power failure does not lose the modules such as a memory, a communication module, a driving circuit and the like, the motor is driven to execute corresponding actions after receiving a control instruction forwarded by the power supply communication board 2, the execution controller 4 is configured with power supply and signal ports of the communication port, the motor drive three-phase output port, the Hall sensor, the rotary encoder, the limit switch and other sensors, and can detect whether the states such as the driving current, the encoder signal and the limit switch signal are normal or not at the same time, and the states are fed back to the cluster controller 1.
The execution controller 4 is integrated with the execution motor 5. The execution controller 4 and the execution motor 5 are integrated integrally, wiring of control cables between the execution controller 4 and the execution motor 5 during field installation is omitted, and the risk of equipment damage caused by wiring errors is reduced. Only distribution cables and communication cables are arranged in the whole system network, so that the workload of field installation and wiring is greatly simplified.
The number of the execution controllers 4 electrically connected with the star controller is two, and the two execution controllers 4 are separately arranged at two sides of the heliostat 6. The executing motor 5 is a stepping motor, a direct current motor and other non-servo motors.
The heliostat control method of the embodiment comprises the following steps:
s1: the superior controller sends out a control instruction to the cluster controller 1;
s2: the cluster controller 1 completes the accurate calculation of the action positions of the execution motors 5 on all heliostats 6 according to the control instructions of the upper controller;
s3: the power supply distribution communication board 2 realizes power supply voltage conversion to meet the working voltage requirement of the execution controllers 4 on the heliostat 6, receives communication data of the cluster controllers 1 and directly forwards the communication data to a plurality of execution controllers 4 on the heliostat 6;
s4: the star connector 3 supplies power and carries out communication switching on the power supply communication board 2 and the execution controller 4;
s5: the execution controller 4 receives the position set value of the execution motor 5 forwarded from the power supply communication board 2 and directly drives the execution motor 5 to act;
s6: the mechanical transmission 62 of the heliostat 6 is driven by the motor 5 to adjust the angle of the mirror 63 of the heliostat 6.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (10)
1. A heliostat control system, characterized by: including superior control ware, superior control ware communication is connected with cluster controller (1), install power supply communication board (2) on stand (61) of heliostat (6), cluster controller (1) are connected in series with power supply communication board (2) on a plurality of heliostats (6) in proper order communication, star connector (3) that are connected with power supply communication board (2) electricity are still installed on stand (61) of heliostat (6), star controller electricity is connected with a plurality of execution controller (4), execution controller (4) electricity is connected with execution motor (5), the output shaft of execution motor (5) is connected with the input of mechanical transmission device (62) of heliostat (6).
2. The heliostat control system of claim 1, wherein: the upper controller comprises an island controller and an upper computer which are electrically connected with each other.
3. The heliostat control system of claim 1, wherein: the superior controller is in communication connection with the cluster controller (1) in a wired or wireless mode.
4. The heliostat control system of claim 1, wherein: the cluster controller (1) is a PLC or a singlechip.
5. The heliostat control system of claim 1, wherein: the cluster controllers (1) are in communication connection with the power supply communication boards (2) and the adjacent power supply communication boards (2) in a wired or wireless mode.
6. The heliostat control system of claim 1, wherein: the power supply communication board (2) is arranged on the local side of the upright post (61) of the heliostat (6).
7. The heliostat control system of claim 1, wherein: the execution controller (4) is integrated with the execution motor (5).
8. The heliostat control system of claim 1, wherein: the number of the execution controllers (4) electrically connected with the star-shaped controllers is two, and the two execution controllers (4) are respectively arranged on two sides of the heliostat (6).
9. The heliostat control system of claim 1, wherein: the executing motor (5) is a stepping motor or a direct current motor.
10. A heliostat control method, characterized by: use of the heliostat control system of any one of claims 1-9; the method comprises the following steps:
s1: the superior controller sends out a control instruction to the cluster controller (1);
s2: the cluster controller (1) completes the accurate calculation of the action positions of the execution motors (5) on all heliostats (6) according to the control instructions of the upper-level controller;
s3: the power supply distribution communication board (2) realizes power supply voltage conversion so as to meet the working voltage requirement of the execution controllers (4) on the heliostat (6), receives communication data of the cluster controllers (1), and directly forwards the communication data to the execution controllers (4) on the heliostat (6), and the execution controllers return the data to the cluster controllers;
s4: the star connector (3) supplies power and carries out communication switching on the power supply communication board (2) and the execution controller (4);
s5: the execution controller (4) receives the position set value of the execution motor (5) forwarded by the power supply communication board (2) and directly drives the execution motor (5) to act;
s6: the mechanical transmission device (62) of the heliostat (6) is driven by the execution motor (5) to act so as to adjust the angle of the mirror surface (63) of the heliostat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179007.XA CN117419469A (en) | 2023-09-13 | 2023-09-13 | Heliostat control system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311179007.XA CN117419469A (en) | 2023-09-13 | 2023-09-13 | Heliostat control system and method |
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| CN117419469A true CN117419469A (en) | 2024-01-19 |
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| CN202311179007.XA Pending CN117419469A (en) | 2023-09-13 | 2023-09-13 | Heliostat control system and method |
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| CN (1) | CN117419469A (en) |
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- 2023-09-13 CN CN202311179007.XA patent/CN117419469A/en active Pending
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