A solar thermal power station

Abstract

The utility model discloses a solar thermal power station, which relates to the technical field of solar thermal power generation, including: a heat absorber; a plurality of heliostats surrounding the heat absorber; a plurality of sub-controllers, each sub-controller is connected to at least one heliostat; and a master controller wirelessly connected to the plurality of sub-controllers. It also includes a plurality of photovoltaic modules and a plurality of energy storage batteries, each of which is connected to the plurality of sub-controllers, and the plurality of photovoltaic modules and the plurality of energy storage batteries are connected to each other. The technical effect of the utility model is that it facilitates reducing the number of sub-controllers and cables.

Description

Technical Field

[0001] The utility model relates to the technical field of photothermal power generation, and in particular to a photothermal power station. Background Art

[0002] A solar thermal power station is a power station that converts solar energy into thermal energy, and then converts thermal energy into electrical energy. It has the advantage of good power generation performance.

[0003] One heliostat in a related solar thermal power station generally corresponds to one sub-controller, and multiple sub-controllers correspond to one main controller. At the same time, multiple sub-controllers and the main controller are connected by cables, which not only leads to a large number of sub-controllers, resulting in a large maintenance workload for the sub-controllers, but also leads to a large number of cables, resulting in high cable costs and laying costs. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a solar thermal power station, which facilitates reducing the number of sub-controllers and cables.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A solar thermal power station, comprising:

[0007] Heat absorber;

[0008] a plurality of heliostats surrounding the absorber;

[0009] A plurality of sub-controllers, each of the sub-controllers being connected to at least one of the heliostats;

[0010] A master controller is wirelessly connected to the plurality of sub-controllers.

[0011] Optionally, it also includes a plurality of photovoltaic components and a plurality of energy storage batteries that are connected to the plurality of sub-controllers correspondingly, and the plurality of photovoltaic components and the plurality of energy storage batteries are connected to each other correspondingly.

[0012] Optionally, each of the sub-controllers is connected to each of the photovoltaic components via a first power supply interface, and each of the sub-controllers is connected to each of the energy storage batteries via a second power supply interface.

[0013] Optionally, each of the sub-controllers is connected to at least one of the heliostats via a first direct current output interface or a first alternating current output interface.

[0014] Optionally, also include:

[0015] A plurality of first wireless modules connected corresponding to the plurality of sub-controllers;

[0016] A second wireless module connected to the master controller;

[0017] The plurality of first wireless modules are all wirelessly connected to the second wireless module, so that the plurality of sub-controllers are all wirelessly connected to the main controller.

[0018] Optionally, the multiple first wireless modules and the second wireless module are all LORA wireless modules, 4G wireless modules, 5G wireless modules or NBIOT wireless modules.

[0019] Optionally, when the multiple first wireless modules and the second wireless module are all LORA wireless modules, a wireless router is also included, and the multiple first wireless modules are all wirelessly connected to the second wireless module through the wireless router.

[0020] Optionally, it also includes multiple surveillance cameras connected to the multiple sub-controllers.

[0021] Optionally, it also includes multiple angle sensors connected to the multiple sub-controllers.

[0022] Optionally, the plurality of heliostats are evenly distributed along the circumference of the heat absorber.

[0023] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0024] 1) Each sub-controller is used to control one heliostat, or each sub-controller is used to control multiple heliostats. Preferably, each sub-controller is used to control multiple heliostats, so as to reduce the number of sub-controllers and reduce the maintenance workload of the sub-controllers;

[0025] 2) The main controller is used to control multiple sub-controllers. Since the main controller and the multiple sub-controllers are connected by wireless communication, the number of cables can be effectively reduced, thereby reducing the cost of the cables themselves and the cost of laying the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a solar thermal power station proposed in an embodiment of the utility model;

[0027] Figure 2 This is one of the control schematic diagrams of a solar thermal power station proposed in an embodiment of the utility model;

[0028] Figure 3 This is a second control schematic diagram of a solar thermal power station proposed in an embodiment of the utility model;

[0029] Figure 4 This is one of the local control schematic diagrams of a solar thermal power station proposed in an embodiment of the utility model;

[0030] Figure 5 This is a second schematic diagram of local control of a solar thermal power station proposed in an embodiment of the utility model;

[0031] In the figure: 1. Receiver; 2. Heliostat; 3. Sub-controller; 4. Main controller; 5. Wireless router; 6. Photovoltaic module. DETAILED DESCRIPTION

[0032] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0033] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0034] Example 1

[0035] Combined with Figure 1-5 This embodiment provides a solar thermal power station, including:

[0036] Heat absorber 1;

[0037] A plurality of heliostats 2 surrounding the absorber 1;

[0038] A plurality of sub-controllers 3, each sub-controller 3 is connected to at least one heliostat 2;

[0039] A main controller 4 is wirelessly connected to the plurality of sub-controllers 3 .

[0040] Specifically, when generating electricity, the multiple heliostats 2 automatically adjust the mirror angles by following the sun through the driving device, so that the reflected light is accurately directed to the heat absorber 1, thereby causing the temperature inside the heat absorber 1 to rise sharply, and then the relevant components inside the heat absorber 1 complete the power generation;

[0041] Each sub-controller 3 is used to control a heliostat 2, such as Figure 4 Alternatively, each sub-controller 3 is used to control a plurality of heliostats 2, such as Figure 5 Preferably, each sub-controller 3 is used to control multiple heliostats 2, so as to reduce the number of sub-controllers 3, thereby reducing the maintenance workload of the sub-controllers 3; the main controller 4 is used to control multiple sub-controllers 3. Since the main controller 4 and multiple sub-controllers 3 are connected by wireless communication, the number of cables can be effectively reduced, thereby reducing the cost of the cables themselves and the cost of laying the cables.

[0042] Further, such as Figure 4-5 , and also includes multiple photovoltaic components 6 and multiple energy storage batteries that are correspondingly connected to the multiple sub-controllers 3, and the multiple photovoltaic components 6 and the multiple energy storage batteries are correspondingly connected.

[0043] Specifically, there are three power supply modes; the first power supply mode is that the photovoltaic component 6 directly supplies power to the sub-controller 3; the second power supply mode is that the energy storage battery directly supplies power to the sub-controller 3, wherein the power in the energy storage battery comes from the photovoltaic component 6, and the second power supply mode is suitable for the case of no light or insufficient light; the third power supply mode is that the photovoltaic component 6 and the energy storage battery supply power at the same time, specifically, the photovoltaic component 6 charges the energy storage battery, and the energy storage battery supplies power to the sub-controller 3.

[0044] Further, such as Figure 4-5 Each sub-controller 3 is connected to each photovoltaic component 6 via a first power supply interface, and each sub-controller 3 is connected to each energy storage battery via a second power supply interface.

[0045] Further, such as Figure 4-5 Each sub-controller 3 is connected to at least one heliostat 2 via a first direct current output interface or a first alternating current output interface.

[0046] Specifically, the first direct current output interface or the first alternating current output interface is selected according to different types of heliostats 2 .

[0047] Further, such as Figure 2-3 , also includes:

[0048] A plurality of first wireless modules correspondingly connected to the plurality of sub-controllers 3;

[0049] A second wireless module connected to the main controller 4;

[0050] Among them, multiple first wireless modules are all wirelessly connected to the second wireless modules, so that multiple sub-controllers 3 are all wirelessly connected to the main controller 4.

[0051] Furthermore, the multiple first wireless modules and second wireless modules are all LORA wireless modules, 4G wireless modules, 5G wireless modules or NBIOT wireless modules.

[0052] Further, such as Figure 3 When the plurality of first wireless modules and the second wireless modules are both LORA wireless modules, a wireless router 5 is also included, and the plurality of first wireless modules are wirelessly connected to the second wireless modules through the wireless router 5.

[0053] Furthermore, it also includes multiple monitoring cameras connected to the multiple sub-controllers 3.

[0054] Specifically, the plurality of monitoring cameras are used to identify the cleanliness of the surface of the heliostat 2 , so as to determine whether the heliostat 2 needs to be cleaned.

[0055] Furthermore, it also includes multiple angle sensors correspondingly connected to the multiple sub-controllers 3.

[0056] Specifically, a plurality of angle sensors are used to monitor the angle signal of the heliostat 2 .

[0057] Further, such as Figure 1 , multiple heliostats 2 are evenly distributed along the circumference of the absorber 1.

[0058] Specifically, the circumferential uniform distribution facilitates increasing the distribution uniformity of the plurality of heliostats 2 , thereby facilitating increasing the heating uniformity of the heat absorber 1 .

[0059] The specific control process of the solar thermal power station is as follows: each sub-controller 3 uploads the position feedback signal of the motor (the motors mentioned in this application are all motors of the driving device of the heliostat 2), the motor number, the motor alarm status signal and the angle signal of the heliostat 2 to the main controller 4, and the main controller 4 transmits the motor start signal and the stop signal to the sub-controller 3; the main controller 4 transmits the motor start signal to the sub-controller 3, if the sub-controller 3 receives the motor start signal, it uploads a normal signal, if the sub-controller 3 does not receive the motor start signal, the sub-controller 3 uploads an abnormal signal, and the main controller 4 transmits a motor start signal again until a normal signal is received; The controller 3 controls the action of the motor according to the motor action signal. After the motor moves to the position, the sub-controller 3 uploads a motor position feedback signal and an angle signal of the heliostat 2 to the main controller 4. At this time, the main controller 4 ends the automatic control at this time point (the motor does not move continuously, but moves in a discontinuous manner according to the control of the main controller 4). The main controller 4 saves the position feedback signal, the motor number, the motor alarm status signal and the angle signal of the heliostat 2. The data for fifteen days can be saved. On the sixteenth day, the data of the earliest day (the first day) is deleted, and the data of the most recent day is saved. The main controller 4 uploads the data of the latest day to the cloud server every day.

[0060] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A solar thermal power station, characterized in that: include: Heat absorber; a plurality of heliostats surrounding the absorber; A plurality of sub-controllers, each of the sub-controllers being connected to at least one of the heliostats; A master controller is wirelessly connected to the plurality of sub-controllers.

2. A solar thermal power station according to claim 1, characterized in that: It also includes a plurality of photovoltaic components and a plurality of energy storage batteries which are connected to the plurality of sub-controllers correspondingly, and the plurality of photovoltaic components and the plurality of energy storage batteries are connected to each other correspondingly.

3. A solar thermal power station according to claim 2, characterized in that: Each of the sub-controllers is connected to each of the photovoltaic components via a first power supply interface, and each of the sub-controllers is connected to each of the energy storage batteries via a second power supply interface.

4. A solar thermal power station according to any one of claims 1 to 3, characterized in that: Each of the sub-controllers is connected to at least one of the heliostats via a first direct current output interface or a first alternating current output interface.

5. A solar thermal power station according to any one of claims 1 to 3, characterized in that: Also includes: A plurality of first wireless modules connected corresponding to the plurality of sub-controllers; A second wireless module connected to the master controller; Among them, the multiple first wireless modules are all wirelessly connected to the second wireless module, so that the multiple sub-controllers are all wirelessly connected to the main controller.

6. A solar thermal power station according to claim 5, characterized in that: The multiple first wireless modules and the second wireless module are all LORA wireless modules, 4G wireless modules, 5G wireless modules or NBIOT wireless modules.

7. A solar thermal power station according to claim 6, characterized in that: When the multiple first wireless modules and the second wireless module are all LORA wireless modules, it also includes a wireless router, and the multiple first wireless modules are all wirelessly connected to the second wireless module through the wireless router.

8. A solar thermal power station according to any one of claims 1 to 3, characterized in that: It also includes a plurality of monitoring cameras connected to the plurality of sub-controllers.

9. A solar thermal power station according to any one of claims 1 to 3, characterized in that: It also includes a plurality of angle sensors correspondingly connected to the plurality of sub-controllers.

10. A solar thermal power station according to any one of claims 1 to 3, characterized in that: The plurality of heliostats are evenly distributed along the circumference of the heat absorber.

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