Heliostat area control system

Abstract

The embodiment of the utility model discloses a heliostat area control system, and relates to the technical field of tower type solar photo-thermal power generation. The scheme may comprise: an area control box; the area controller is arranged at a first position of the inner wall of the area control box and is used for driving and controlling the heliostat in a preset area to operate; the plurality of circuit breaker groups are arranged at a second position of the inner wall of the area control box, each circuit breaker group comprises a plurality of circuit breakers, each circuit breaker is electrically connected with one local controller, and the plurality of circuit breaker groups adopt a star-shaped radial connection structure; and the switch is arranged at a third position of the inner wall of the area control box and is used for being in one-to-one communication connection with the access equipment of the heliostat in the preset area, the switch and the access equipment of the other heliostats form a star topology structure, and a redundant ring network topology structure is adopted among the plurality of area control boxes.

Description

Technical Field

[0001] This application relates to the technical field of tower solar thermal power generation, and in particular to a heliostat field control system. Background Art

[0002] Tower solar thermal power generation (CSP: Concentrating Solar Power) is an energy conversion technology that effectively utilizes solar energy for power generation. Due to the large number of CSP heliostats, when designing, it is necessary to consider the integrated form and functions of the heliostats. At the same time, various factors such as the overhaul and maintenance of the heliostat control system and cost control also need to be considered.

[0003] The heliostat field control system is the core equipment for the power distribution, communication, and control of heliostats. It has functions such as networking and communicating with the upper-level system upward and controlling the operation of heliostats downward. The rationality of its power distribution system, communication topology, equipment layout, and functions directly affects the stability, reliability, and real-time performance of the entire heliostat field control system. At the same time, the design from aspects such as cost control, on-site maintenance, and layout aesthetics is of great significance to the whole field.

[0004] Currently, most of the power supply of the heliostat field control system adopts the tree-type power supply method, and the power supply reliability is poor; secondly, the communication network of the heliostat field control system adopts a single ring network, and the communication reliability is low.

[0005] Therefore, how to improve the power supply and communication reliability of the heliostat field control system has become an urgent technical problem to be solved. Utility Model Content

[0006] The embodiments of this specification provide a heliostat field control system to solve the technical problems of poor power supply reliability and low communication reliability in the existing heliostat field control system.

[0007] The embodiments of this specification adopt the following technical solutions:

[0008] On the one hand, the embodiments of this specification provide a heliostat field control system, including:

[0009] A regional control box;

[0010] A regional controller, arranged at a first position on the inner wall of the regional control box, for driving and controlling the operation of heliostats in a preset area;

[0011] Multiple breaker groups, arranged at a second position on the inner wall of the regional control box. Each breaker group includes multiple breakers. Among them, each breaker is electrically connected to a local controller respectively, and a star radial connection structure is adopted between the multiple breaker groups;

[0012] A switch, which is arranged at the third position on the inner wall of the area control box, is used for one-to-one communication connection with the access devices of the heliostats in the preset area, and forms a star topology structure with the access devices of other heliostats. A redundant ring network topology structure is adopted between multiple area control boxes.

[0013] Preferably, a box door, which is hinged to the area control box. The box door is provided with a groove, and the groove is fitted with a sealing strip.

[0014] Preferably, a silk-screened drawing is provided on the inner wall of the box door, and the silk-screened drawing includes a circuit diagram.

[0015] Preferably, a two-dimensional code identifier is provided on the area control box and / or the box door for users to obtain the device information in the area control box.

[0016] Preferably, a socket is arranged at the fourth position on the inner wall of the area control box for power consumption equipment to draw power during on-site debugging and maintenance.

[0017] Preferably, an emergency stop button is arranged on the area control box for rapid shutdown protection in case of an emergency.

[0018] Preferably, a hand-held controller connector interface is installed at the bottom of the area control box for connecting with a portable hand-held controller.

[0019] At least one of the technical solutions adopted in the embodiments of this specification can achieve the following beneficial effects:

[0020] The heliostat area control system proposed by the present invention controls and drives the heliostats in the area. A star radial connection structure is adopted between multiple breaker groups to improve the reliability of power supply, and a star topology structure is adopted for the switch networking to improve the reliability of communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0022] Figure 1 It is an unfolded layout diagram of a heliostat area control system provided by an embodiment of this specification;

[0023] Figure 2 It is an external structure diagram of a heliostat area control system provided by an embodiment of this specification;

[0024] Figure 3 Schematic diagram of the power distribution system of a heliostat area control system provided by an embodiment of this specification;

[0025] Figure 4 A communication topology diagram of a heliostat area control system provided by an embodiment of this specification;

[0026] Figure 5 Another communication topology diagram of a heliostat area control system provided by an embodiment of this specification.

[0027] Explanation of reference numerals:

[0028] 1. Area control box, 2. Door lock, 3. QR code label, 4. Emergency stop button, 5. Box door, 6. Sealing strip, 7. Silk-screen drawing, 8. Hinge, 9. Bolt, 10. Circuit breaker, 11. Socket, 12. Switch, 13. Power module, 14. Area controller, 15. Fixed bracket, 16. Grounding copper bar, 17. Cable tray, 18. Handheld controller connector interface. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments of this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0030] As Figure 1 shown, Figure 1 It is an unfolded layout diagram of a heliostat area control system.

[0031] The present utility model provides a heliostat area control system, including: area control box 1, area controller 14, circuit breaker 10, switch 12, emergency stop button 4, fixed bracket 15, handheld controller connector interface 18, grounding copper bar 16, power module 13, socket 11, silk-screen drawing 7, etc.

[0032] Figure 2 It is an external structure diagram of a heliostat area control system.

[0033] As Figure 2As shown, the regional control box 1 uses a metal box body. There is a box body door lock 2 installed at each of the upper and lower parts of the box body, using a buckle lock or other lock types. The equipment inside the box adopts a fanless structure design, and there is no need to set up an exhaust fan on the box body. The box body has good heat dissipation performance and sealing performance in terms of structural design. Each area can correspond to a regional control box, and multiple areas correspond to multiple regional control boxes.

[0034] The regional controller 14 is set at the first position on the inner wall of the regional control box 1 and is used to drive and control the operation of the heliostats in the preset area. The regional controller 14 integrates the functions of heliostat control and drive, and has functions such as heliostat signal acquisition, sun-tracking algorithm control, motor drive, protection, communication, clock calibration, and deviation correction calibration.

[0035] Figure 3 It is a schematic diagram of the power distribution system of a heliostat regional control system provided by an embodiment of this specification.

[0036] Multiple breaker groups are set at the second position on the inner wall of the regional control box 1. Each breaker group includes multiple breakers. Among them, each breaker is respectively electrically connected to a local controller, and a star-shaped radial connection structure is adopted between the multiple breaker groups. Figure 3 As shown, a breaker 10 is installed in the heliostat regional control box 1. Figure 3 In it, LOC represents the local controller of the heliostat. The power distribution of the heliostat regional control system adopts a star-shaped radial connection structure, providing reliable one-to-one power supply. The failure or tripping of any one feed circuit does not affect the normal operation of other circuits.

[0037] Figure 4 It is a communication topology schematic diagram of a heliostat regional control system provided by an embodiment of this specification.

[0038] Figure 5 It is another communication topology schematic diagram of a heliostat regional control system provided by an embodiment of this specification.

[0039] The switch 12 is set at the third position on the inner wall of the regional control box and is used for one-to-one communication connection with the access devices of the heliostats in the preset area, and forms a star topology structure with the access devices of other heliostats. A redundant ring network topology structure is adopted between the multiple regional control boxes. As Figure 4 、 Figure 5 As shown, a switch 12 is installed in the heliostat regional control box 1. Figure 4 、 Figure 5In the text, LOC represents the heliostat local controller. The communication of the heliostat area control system adopts mature industrial optoelectronic switch equipment, and the networking adopts a reliable star topology structure. The access layer adopts a reliable one-to-one Ethernet connection, and the access aggregation layer adopts a single-ring network or redundant ring network topology structure, which can ensure that the normal operation of other nodes is not affected by the failure of any one node.

[0040] The box door 5 is hinged to the area control box. The box door is provided with a groove, and the groove is fitted with a sealing strip. The area control box 1 is connected to the box door 5 through a box body hinge 8. The multi-hinge structure design can achieve wind resistance and tensile resistance for outdoor use in the heliostat field, and ensure the service life of the control box. A sealing strip 6 is installed on the box door 5. By using pasting or foaming technology, the sealing strip 6 is installed on the box door 5 to meet the high protection level requirements for outdoor use in the heliostat field.

[0041] A silk-screened drawing is provided on the inner wall of the box door 5. The silk-screened drawing includes a circuit diagram. A silk-screened drawing 7 is installed on the box door 5. By using silk-screening technology, the silk-screened drawing 7 is silk-screened on the box door 5, which is convenient for on-site construction wiring and inspection to view the drawings, and is of a permanent type, without the problem of loss or damage.

[0042] A QR code identifier is provided on the area control box and / or the box door for users to obtain the device information inside the area control box. A QR code identifier 3 is designed at the lower left corner of the front of the area control box 1. Users can obtain the device information inside the area control box by scanning the QR code.

[0043] A socket 11 is provided at the fourth position on the inner wall of the area control box for power supply to electrical equipment during on-site debugging and maintenance.

[0044] An emergency stop button 4 is provided on the area control box for rapid shutdown protection in case of emergencies. An emergency stop button 4 is installed at the lower part of the heliostat area control box 1, which meets the rapid shutdown protection for emergencies during on-site debugging, maintenance and trial operation, and improves the convenience and safety of on-site debugging and maintenance.

[0045] A hand-held controller connector interface 18 is installed at the bottom of the area control box for connecting to a portable hand-held controller. By adopting a quick-insert connection operation for the hand-held controller without opening the box for debugging, a portable debugging hand-held controller connector interface 18 is installed at the lower part of the area control box 1. During on-site debugging and maintenance, the portable hand-held controller can be connected to realize the control of trial operation, which improves the convenience of on-site debugging and maintenance, and thus greatly shortens the time required for heliostat debugging.

[0046] A wire duct 17 is installed inside the area control box 1. The wire duct 17 is fixed inside the heliostat area control box 1 through bolts 9 for in-box wiring to achieve neatness and beauty.

[0047] Inside the area control box 1, a power module 13 and an area controller 14 are installed. The power module provides direct current for the area controller 14 and the switch 12.

[0048] Inside the area control box 1, a fixed bracket 15 and a grounding copper bar 16 are installed. The fixed bracket 15 is used for binding and fixing the incoming and outgoing cables in the box, making the wiring neat and beautiful. The grounding copper bar 16 facilitates the convergence of electrical grounding wires on the grounding bar to achieve centralized grounding.

[0049] The heliostat area control system proposed by the present invention controls and drives the heliostats within the area. A star - type radial connection structure is adopted between multiple breaker groups to improve the reliability of power supply, and a star - type topology structure is adopted for the switch networking to improve the reliability of communication. As the local heliostat power distribution and communication convergence center, the heliostat area control system can control any heliostat connected through the area control box, thereby greatly shortening the time required for heliostat commissioning and effectively improving the working efficiency of heliostat commissioning and maintenance in the mirror field.

[0050] It can be seen from the above embodiments that the present utility model can achieve the following technical effects:

[0051] 1) The present utility model can realize the integrated and modular design of the heliostat system;

[0052] 2) The present utility model improves the power distribution reliability of the heliostat field;

[0053] 3) The present utility model improves the reliability of the communication network in the heliostat field;

[0054] 4) The present utility model improves the convenience and safety of on - site commissioning and maintenance;

[0055] 5) The present utility model facilitates the independent replacement of the heliostat controller and reduces the maintenance cost;

[0056] 6) The present utility model improves the sealing protection level and service life of the box body;

[0057] 7) The present utility model provides a strong guarantee for the smooth production of the entire heliostat field project during the construction period and provides convenience for maintenance during the operation period.

[0058] The above description is of specific embodiments of this specification, and other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily have to be performed in the particular order or in a sequential order shown to achieve the desired result. Each embodiment in this specification is described in a progressive manner, and the same or similar parts among the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0059] It should also be noted that the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements that are inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising the element.

[0060] The above is only for the embodiments of this specification and is not used to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A heliostat area control system, characterized in that: include: Area control box; A regional controller, disposed at a first position on the inner wall of the regional control box, for driving and controlling the operation of the heliostats in a preset area; A plurality of circuit breaker groups are arranged at a second position of the inner wall of the regional control box, each of the circuit breaker groups comprises a plurality of circuit breakers, wherein each circuit breaker is electrically connected to a local controller, and a star-shaped radial connection structure is adopted between the plurality of circuit breaker groups; The switch is arranged at a third position on the inner wall of the regional control box, and is used for one-to-one communication connection with the access devices of the heliostats in the preset area, and forms a star topology with the access devices of other heliostats. A redundant ring network topology is adopted between multiple regional control boxes.

2. The heliostat area control system according to claim 1, characterized in that: Also includes: The box door is hinged to the area control box, and the box door is provided with a groove, and the groove is embedded with the sealing strip.

3. The heliostat area control system according to claim 2, characterized in that: A silk-screen drawing is provided on the inner wall of the box door, and the silk-screen drawing includes a circuit diagram.

4. The heliostat area control system according to claim 2, characterized in that: The regional control box and / or the box door are provided with a QR code mark for the user to obtain the equipment information in the regional control box.

5. The heliostat area control system according to claim 1, characterized in that: Also includes: The socket is arranged at the fourth position of the inner wall of the regional control box and is used to draw power from electrical equipment during on-site debugging and maintenance.

6. The heliostat area control system according to claim 1, characterized in that: Also includes: The emergency stop button is arranged on the regional control box and is used for rapid shutdown protection in emergency events.

7. The heliostat area control system according to claim 1, characterized in that: Also includes: The hand operator connector interface is installed at the bottom of the regional control box and is used to connect to the portable hand operator.

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