A communication device of a multi-cabin interconnection system and a multi-cabin interconnection system

Abstract

The utility model discloses a kind of communication device of multi-cabin body interlocking system and multi-cabin body interlocking system, the multi-cabin body interlocking system includes at least one group of energy storage bridge arm module and monitoring cabinet group, each group of energy storage bridge arm module includes multiple energy storage current conversion chain links connected in turn, the communication device includes multiple cabin bodies, at least multiple energy storage current conversion chain links are arranged in the cabin body;Each cabin body is provided with cabin control module, the cabin control module is respectively connected with the controller of each energy storage current conversion chain link by first optical fiber, the cabin control module is connected with the monitoring cabinet group by second optical fiber, wherein, the transmission speed of first optical fiber is lower than second optical fiber, and the design reduces arrangement cost, data transmission is timely and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment, especially to a communication device of multi-cabin level connection system and multi-cabin level connection system. BACKGROUND

[0002] With the rapid development of new energy, the installed capacity of new energy accounts for a larger and larger proportion, and since new energy belongs to unstable energy, energy storage needs to be configured in wind power and photovoltaic power stations, and through power station output prediction and energy storage charging and discharging scheduling, renewable energy generation can be smoothly controlled to reduce instantaneous power changes and reduce the impact on the power grid.

[0003] The existing high-voltage cascade energy storage system usually includes energy storage bridge arm modules, each energy storage bridge arm module includes a plurality of energy storage converter chain links connected in series, and after series voltage boosting, the energy storage converter chain links can be directly connected with a high-voltage power grid. Since the number of energy storage converter chain links is large, a large number of cabins are needed to place the energy storage converter chain links, and each cabin places several energy storage converter chain links. A monitoring cabinet group is also arranged outside the cabin, and the monitoring cabinet group needs to be connected with each energy storage converter chain link to obtain the operating state data of each energy storage converter chain link and output control instructions for each energy storage converter chain link. In order to ensure the transmission speed and the response speed of the energy storage converter chain link, the monitoring cabinet group is connected with each energy storage converter chain link through an optical fiber. However, since there are many cabins, they need to be distributed at various positions in the site, and the optical fiber that meets the requirements of long-distance transmission and fast transmission efficiency is expensive, and the number of optical fibers at least meets one-to-one pairing with the number of energy storage converter chain links. Therefore, a large number of optical fibers need to be configured, resulting in high cost of the communication architecture layout that meets the corresponding conditions. SUMMARY

[0004] The utility model aims at least to solve one of the technical problems existing in the prior art. To this end, the utility model provides a communication device of multi-cabin level connection system and a multi-cabin level connection system, which reduces the layout cost and transmits data in time and efficiently.

[0005] According to the communication device of the multi-cabin level connection system of the first aspect embodiment of the utility model, the multi-cabin level connection system includes at least one group of energy storage bridge arm modules and a monitoring cabinet group, each group of energy storage bridge arm modules includes a plurality of energy storage converter chain links connected in sequence, the communication device includes a plurality of cabins, and at least a plurality of energy storage converter chain links are arranged in the cabin. A cabin control module is arranged in each cabin, the cabin control module is connected with the controller of each energy storage converter chain link through a first optical fiber, and the cabin control module is connected with the monitoring cabinet group through a second optical fiber, wherein the transmission speed of the first optical fiber is lower than that of the second optical fiber.

[0006] The communication device of the multi-cabin level connection system according to the utility model embodiment has at least the following beneficial effects:

[0007] The utility model discloses a communication device of multi-cabin body level connection system, and each cabin body is provided with cabin control module, and the controller of each energy storage variable flow chain link in the cabin body is connected through the first optical fiber of cabin control module, and the transmission speed of first optical fiber is slow, but the cost is relatively lower, and can satisfy the transmission requirement of smaller distance in the cabin body, and the control module in the cabin is connected through the second optical fiber of second optical fiber transmission speed is fast, can satisfy long -distance data transmission, and the number of second optical fiber is greatly reduced in the design structure, and the cost of arrangement is controlled, and the control instruction of monitoring cabinet group can be distributed to the controller of each energy storage variable flow chain link in the cabin body through the control module in the cabin, and the control requirement is satisfied, and the cost of arrangement is reduced, and data transmission is timely and efficient.

[0008] According to some embodiments of the utility model, the first optical fiber is plastic optical fiber, and the second optical fiber is glass optical fiber.

[0009] According to some embodiments of the utility model, the monitoring cabinet group includes a control cabinet and a communication cabinet, each energy storage variable flow chain link is provided with an energy storage manager, the cabin control module is connected with the controller through the first optical fiber to transmit control instructions, the cabin control module is connected with the energy storage manager through the third optical fiber to transmit energy storage state data, the second optical fiber has two, the control cabinet is connected with the cabin control module through one second optical fiber to transmit control instructions, and the cabin control module is connected with the communication cabinet through the other second optical fiber to transmit energy storage state data.

[0010] According to some embodiments of the utility model, the third optical fiber is plastic optical fiber or glass optical fiber.

[0011] According to some embodiments of the utility model, the energy storage manager is provided with an energy storage temperature detection unit and an energy storage capacity detection unit, the energy storage temperature detection unit is used to detect the temperature information of the energy storage part of the energy storage variable flow chain link, and the energy storage capacity detection unit is used to detect the energy information of the energy storage part of the energy storage variable flow chain link;The energy storage manager transmits temperature information and the energy information as energy storage state data to the cabin control module.

[0012] According to some embodiments of the utility model, the cabin body is provided with an energy storage master control module, the energy storage master control module is connected with each energy storage manager, and the cabin control module is connected with the energy storage master control module through the third optical fiber to obtain the energy storage state data of each energy storage manager.

[0013] According to some embodiments of the utility model, the cabin body is internally provided with a temperature and humidity control module, the temperature and humidity control module is used for modulating the temperature and humidity in the cabin body, and the cabin control module is connected with the temperature and humidity control module through a first cable to transmit control instructions.

[0014] According to some embodiments of the utility model, the cabin body is internally provided with a fire control module, the fire control module is used for being triggered to extinguish fire, and the cabin control module is connected with the fire control module through a second cable to transmit control instructions.

[0015] According to some embodiments of the utility model, the energy storage bridge arm module has three groups.

[0016] According to the multi-cabin interconnection system of the second aspect of the utility model, the communication device of the multi-cabin interconnection system disclosed in any one of the above embodiments is used, the arrangement cost is reduced, and data transmission is timely and efficient.

[0017] According to the multi-cabin interconnection system of the utility model embodiment, at least the following

[0018] Advantages are as follows

[0019] The multi-cabin interconnection system of the utility model uses the communication device of the multi-cabin interconnection system disclosed in any one of the above embodiments, reduces the arrangement cost, and is timely and efficient in data transmission.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description of embodiments, taken in conjunction with the accompanying drawings, in which:

[0022] Fig. 1 It is a structure schematic view of one embodiment of the communication device of the multi-cabin interconnection system of the utility model;

[0023] Fig. 2 It is a structure schematic view of one embodiment of the multi-cabin interconnection system of the utility model;

[0024] Fig. 3 It is a circuit schematic view of the energy storage converter chain.

[0025] Reference signs:

[0026] Energy storage bridge arm module 100; energy storage converter chain 110; controller 120; energy storage manager 130; energy storage temperature detection unit 131; energy storage capacity detection unit 132; monitoring cabinet group 200; control cabinet 210; communication cabinet 220; cabin 300; cabin control module 400; first optical fiber 410; second optical fiber 420; third optical fiber 430; energy storage main control module 500; temperature and humidity regulation module 600; fire extinguishing module 700. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0029] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0030] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] As Figs. 1 to 3As shown, according to the first aspect embodiment of the utility model discloses a kind of communication device of multi-cabin 300 level contact system, the multi-cabin 300 level contact system includes at least one group of energy storage bridge arm module 100 and monitoring cabinet group 200, each group of energy storage bridge arm module 100 includes multiple energy storage current conversion chain links 110 connected in turn, the communication device includes multiple cabins 300, at least multiple energy storage current conversion chain links 110 are arranged in the cabin 300;Each cabin 300 is provided with cabin control module 400, the cabin control module 400 is connected with the controller 120 of each energy storage current conversion chain link 110 respectively by first optical fiber 410, the cabin control module 400 is connected with the monitoring cabinet group 200 by second optical fiber 420, wherein the transmission speed of the first optical fiber 410 is lower than the second optical fiber 420.

[0032] Wherein, energy storage bridge arm module 100 can have three groups, each energy storage bridge arm module 100 is accessed high voltage network bus, the alternating current side of energy storage current conversion chain link 110 in each energy storage bridge arm module 100 is connected in series in turn, specifically, as shown in Fig. 3 As shown, energy storage current conversion chain link 110 can include four power switch tubes, energy storage piece (energy storage capacitor, storage battery etc.) and controller 120, four power switch tubes are connected into H bridge conversion circuit, energy storage piece is connected with the direct current side of H bridge conversion circuit, controller 120 is connected with the controlled end of each power switch tube to control each power switch tube on-off operation according to the control instruction distributed by cabin control module 400.

[0033] Cabin 300 can be built by sheet metal piece and alloy support, form relatively closed space, and the controller 120 of cabin control module 400 and energy storage current conversion chain link 110 can be selected in the integrated IC or processor with conventional processing capacity and control capacity and its attached circuit.

[0034] In some embodiments of the utility model, the first optical fiber 410 is plastic optical fiber, and the second optical fiber 420 is glass optical fiber.

[0035] The core and cladding of the plastic optical fiber are made of plastic or polymer, and polymethyl methacrylate (PMMA) is usually used as the core material, while glass is used as the core material of the glass optical fiber. The core diameter of the plastic optical fiber is relatively large (0.15-2 mm), while the core diameter of the glass optical fiber is relatively small (about 0.1 mm). The plastic optical fiber is suitable for short-distance data transmission due to its softness and non-fracture characteristics, and has relatively slow transmission speed and low cost, while the glass optical fiber has high transmission speed and is suitable for long-distance data transmission, but has high cost.

[0036] The utility model discloses a multi-cabin 300 level contact system's communication device, each cabin 300 is provided with cabin control module 400, and the cabin control module 400 is connected with the controller 120 of each energy storage converter chain link 110 in the cabin 300 through the first optical fiber 410, and the transmission speed of the first optical fiber 410 is slow, but the cost is relatively low, and the transmission requirement of small distance in the cabin 300 can be satisfied, and the cabin control module 400 is connected with the monitoring cabinet group 200 again through the second optical fiber 420, and the transmission speed of the second optical fiber 420 is fast, and long-distance data transmission can be satisfied, and the number of the second optical fiber 420 is greatly reduced in the design structure, and the arrangement cost is controlled, and the control instruction issued by the monitoring cabinet group 200 can be distributed to the controller 120 of each energy storage converter chain link 110 in the cabin 300 through the cabin control module 400, and the control requirement is satisfied, and the arrangement cost is reduced in the design, and data transmission is timely and efficient.

[0037] In some embodiments of the utility model, the monitoring cabinet group 200 includes control cabinet 210 and communication cabinet 220, each energy storage converter chain link 110 is provided with energy storage manager 130, the cabin control module 400 is connected with the controller 120 through the first optical fiber 410 to transmit control instruction, the cabin control module 400 is connected with the energy storage manager 130 through the third optical fiber 430 to transmit energy storage state data, the second optical fiber 420 has two, the control cabinet 210 is connected with the cabin control module 400 through one second optical fiber 420 to transmit control instruction, and the cabin control module 400 is connected with the communication cabinet 220 through another second optical fiber 420 to transmit energy storage state data.

[0038] Among them, control cabinet 210 is mainly used to handle the control signal of forming control each power switch tube operation, and communication cabinet 220 is used to analyze and process the running state information of energy storage converter chain link 110, for example, energy storage voltage, output current, operating temperature etc., timely response and warning when failure occurs.Control cabinet 210 sequentially sorts and encodes the control instruction of each energy storage converter chain link 110, and then issues to the cabin control module 400 through one second optical fiber 420, and the cabin control module 400 decodes the control instruction of sorting and encoding again, and splits into each control instruction matched with energy storage converter chain link 110, and then distributes to each controller 120 through the first optical fiber 410, and the energy storage state data collected by energy storage manager 130 is uploaded to the cabin control module 400 through the third optical fiber 430, and the cabin control module 400 sequentially sorts and encodes the energy storage state data of each energy storage manager 130, and then uploads to communication cabinet 220 through the second optical fiber 420.

[0039] Specifically, the cabin control module 400 has a plurality of optical fiber sending ports and optical fiber receiving ports, part of the plurality of optical fiber sending ports are connected with the first optical fiber 410 one by one, thereby being connected with each controller 120, part of the plurality of optical fiber receiving ports are connected with the third optical fiber 430 one by one, thereby being connected with each electricity storage manager 130, and part of the optical fiber sending ports can be connected with the second optical fiber 420, thereby being connected with the communication cabinet 220, and part of the optical fiber receiving ports are connected with the second optical fiber 420, thereby being connected with the control cabinet 210.

[0040] Specifically, the third optical fiber 430 can be a plastic optical fiber or a glass optical fiber.

[0041] In some embodiments of the utility model, the electricity storage manager 130 is provided with an electricity storage temperature detection unit 131 and an electricity storage capacity detection unit 132, the electricity storage temperature detection unit 131 is used to detect the temperature information of the energy storage part of the energy storage variable flow chain link 110, and the electricity storage capacity detection unit 132 is used to detect the electricity quantity information of the energy storage part of the energy storage variable flow chain link 110, and the electricity storage manager 130 transmits the temperature information and the electricity quantity information to the cabin control module 400 as electricity storage state data.

[0042] The electricity storage temperature detection unit 131 can be selected from conventional temperature sensors, thermocouples, temperature-sensitive resistors and the like to detect the temperature information of the electricity storage part, and the electricity storage capacity detection unit 132 can use a coulomb meter, a negative voltage sampling circuit or the like to detect the energy storage voltage of the energy storage part, and then obtain the electricity quantity information.

[0043] In some embodiments of the utility model, the cabin body 300 is provided with an electricity storage main control module 500, the electricity storage main control module 500 is connected with each electricity storage manager 130, and the cabin control module 400 is connected with the electricity storage main control module 500 through the third optical fiber 430 to obtain the electricity storage state data of each electricity storage manager 130.

[0044] The electricity storage main control module 500 can serve as a superior monitor of each electricity storage manager 130, and the electricity storage state data collected by each electricity storage manager 130 is summarized and then uniformly uploaded to the cabin control module 400, so that the analysis load of the cabin control module 400 is reduced, and the stable operation of the hierarchical system is ensured.

[0045] In some embodiments of the utility model, the cabin body 300 is provided with a temperature and humidity regulation module 600, the temperature and humidity regulation module 600 is used to regulate the temperature and humidity in the cabin body 300, and the cabin control module 400 is connected with the temperature and humidity regulation module 600 through a first cable to transmit control instructions.

[0046] The temperature and humidity regulation module 600 can include a conventional air conditioner and a humidifier, etc., which are arranged in the cabin body 300 to regulate the temperature and humidity in the cabin body 300. The communication cabinet 220 can form corresponding reasonable control instructions according to the obtained operation state data of the devices in the cabin body 300, and send the control instructions to the in-cabin control module 400, and then the in-cabin control module 400 sends the control instructions to the temperature and humidity regulation module 600 through the first cable to control the operation of the temperature and humidity regulation module 600. The first cable can be a conventional electrically connected wire.

[0047] In some embodiments of the utility model, the cabin body 300 is provided with a fire-fighting module 700, and the fire-fighting module 700 is used to be triggered to extinguish fire. The in-cabin control module 400 is connected with the fire-fighting module 700 through a second cable to transmit control instructions.

[0048] The fire-fighting module 700 can be a dry powder fire extinguisher, a carbon dioxide fire extinguisher, etc. The fire-fighting module 700 is triggered by an electric signal. Similarly, the second cable can be a conventional electrically connected wire. When the cabin body 300 has a high temperature or a fire characteristic, the communication cabinet 220 sends control instructions to the in-cabin control module 400 in time, and then the in-cabin control module 400 sends the control instructions to the fire-fighting module 700 through the second cable to control the fire-fighting module 700 to extinguish fire.

[0049] According to the multi-cabin body 300 level connection system of the second aspect of the utility model, as shown in Figs. 1 to 3 The communication device of the multi-cabin body 300 level connection system disclosed in any of the above embodiments.

[0050] The multi-cabin body 300 level connection system of the utility model reduces the arrangement cost and realizes timely and efficient data transmission by using the communication device of the multi-cabin body 300 level connection system disclosed in any of the above embodiments.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0052] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. A communication device of a multi-cabin interconnection system, the multi-cabin interconnection system comprising at least one set of energy storage bridge arm modules and a monitoring cabinet set, each set of energy storage bridge arm modules comprising a plurality of energy storage converter chain links connected in sequence, characterized in that, The communication device comprises a plurality of cabins, and at least a plurality of energy storage variable current chain links are arranged in the cabins. An in-cabin control module is arranged in each cabin, and the in-cabin control module is connected with the controller of each energy storage variable current chain link through a first optical fiber, and the in-cabin control module is connected with the monitoring cabinet group through a second optical fiber, wherein the transmission speed of the first optical fiber is lower than that of the second optical fiber.

2. The communication device of a multi-compartment level linking system according to claim 1, wherein, The first optical fiber is a plastic optical fiber, and the second optical fiber is a glass optical fiber.

3. The communication device of a multi-compartment level linking system according to claim 1, wherein, The monitoring cabinet group comprises a control cabinet and a communication cabinet, and each energy storage variable current chain link is provided with an electricity storage manager, the in-cabin control module is connected with the controller through the first optical fiber to transmit control instructions, the in-cabin control module is connected with the electricity storage manager through a third optical fiber to transmit electricity storage state data, the second optical fiber has two, the control cabinet is connected with the in-cabin control module through one of the second optical fibers to transmit control instructions, and the in-cabin control module is connected with the communication cabinet through the other second optical fiber to transmit electricity storage state data.

4. The communication device of a multi-compartment level linking system according to claim 3, wherein, The third optical fiber is a plastic optical fiber or a glass optical fiber.

5. The communication device of a multi-compartment level linking system according to claim 3, wherein, The electricity storage manager is provided with an electricity storage temperature detection unit and an electricity storage capacity detection unit, the electricity storage temperature detection unit is used for detecting temperature information of the energy storage part of the energy storage variable current chain link, and the electricity storage capacity detection unit is used for detecting electricity quantity information of the energy storage part of the energy storage variable current chain link; and the electricity storage manager transmits the temperature information and the electricity quantity information to the in-cabin control module as electricity storage state data.

6. The communication device of a multi-compartment level linking system according to claim 3, wherein, An electricity storage master control module is arranged in the cabin, the electricity storage master control module is connected with each electricity storage manager, and the in-cabin control module is connected with the electricity storage master control module through the third optical fiber to obtain the electricity storage state data of each electricity storage manager.

7. The communication device of a multi-compartment level linking system according to claim 1, wherein, A temperature and humidity control module is arranged in the cabin, the temperature and humidity control module is used for adjusting the temperature and humidity in the cabin, and the in-cabin control module is connected with the temperature and humidity control module through a first cable to transmit control instructions.

8. The communication device of a multi-compartment level linking system according to claim 1, wherein, A fire extinguishing module is arranged in the cabin, the fire extinguishing module is used for being triggered to extinguish fire, and the in-cabin control module is connected with the fire extinguishing module through a second cable to transmit control instructions.

9. The communication device of a multi-compartment level linking system according to claim 1, wherein, The energy storage bridge arm module has three groups.

10. A multi-compartment staging system, characterized by, A communication device comprising a multi-cabin interconnection system according to any one of claims 1 to 8.

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