Hybrid communication control device and method applied to energy storage system

Abstract

The invention relates to the technical field of communication management, and particularly discloses a hybrid communication control device and method applied to an energy storage system, and the device comprises a first communication module which builds a first channel with first equipment and is used for receiving first communication data uploaded by the first equipment; the second communication module establishes second channels with the first equipment and the second equipment respectively and is used for receiving second communication data uploaded by the first equipment and third communication data uploaded by the second equipment; and the communication control module is used for continuously monitoring the communication state of the first channel and controlling the second communication module to receive the first communication data uploaded by the first equipment when the communication state of the first channel meets the abnormal switching condition. According to the technical scheme provided by the invention, the normal transmission channel can be used as the standby transmission channel, and whether abnormal transmission switching needs to be carried out or not is determined according to the real-time transmission state of the channel, so that the continuity of data transmission of the energy storage system is ensured.

Description

Technical Field

[0001] This disclosure relates to the field of communication management technology, and in particular to a hybrid communication control device and method for use in energy storage systems. Background Technology

[0002] An energy storage system is a comprehensive system that can store different forms of energy (such as electrical energy, thermal energy, mechanical energy, etc.) and provide energy to the load when needed. It can be operated in coordination by various energy storage units and their control subsystems, energy conversion subsystems, condition monitoring subsystems, etc.

[0003] With the continuous development of energy storage technologies, the scale and capacity of energy storage systems are increasing, and the communication complexity between the energy management terminal and various component devices in these systems is also rising. Currently, the energy management terminal of an energy storage system primarily communicates with these component devices via wired communication cables. If these cables experience disconnections or other abnormalities, the energy management terminal may struggle to obtain the specific operating status of each component device, potentially jeopardizing the safe operation of the energy storage system. Summary of the Invention

[0004] The purpose of this disclosure is to provide a hybrid communication control device and method for energy storage systems, which can use the normal transmission channel as a backup transmission channel and determine whether abnormal transmission switching is needed based on the real-time transmission status of the channel, thereby ensuring the continuity of data transmission in the energy storage system.

[0005] The first aspect of this disclosure provides a hybrid communication control device for an energy storage system. Specifically, the device may include: a first communication module that establishes a first channel with a first device in the energy storage system to receive first communication data uploaded by the first device; a second communication module that establishes second channels with both the first and second devices in the energy storage system to receive second communication data uploaded by the first device and third communication data uploaded by the second device, wherein the first and second channels are independent of each other; and a communication control module connected to both the first and second communication modules to continuously monitor the communication status of the first channel and, when the communication status of the first channel meets abnormal switching conditions, control the second communication module to receive the first communication data uploaded by the first device.

[0006] In one possible implementation of the first aspect described above, the transmission stability of the first channel is higher than that of the second channel; and / or the transmission delay of the first channel is lower than that of the second channel.

[0007] In one possible implementation of the first aspect described above, the first channel is configured as a wired transmission channel; the second channel is configured as a wireless transmission channel.

[0008] In one possible implementation of the first aspect above, the transmission priority of the first communication data is higher than that of the second communication data; the transmission priority of the first communication data is higher than that of the third communication data; when the first communication data, the second communication data, and the third communication data are all uploaded through the second channel, the second channel prioritizes the transmission of the first communication data.

[0009] In one possible implementation of the first aspect above, when the first communication data, the second communication data, and the third communication data are all uploaded through the second channel, the second channel reduces the transmission rate of the second communication data and the third communication data; or the second channel suspends the transmission of the second communication data and the third communication data, and the first device and the second device respectively temporarily store the second communication data and the third communication data that have not been uploaded.

[0010] In one possible implementation of the first aspect described above, the communication control module is further configured to acquire communication performance indicators of the first channel, including one or any combination of the channel transmission delay, channel transmission delay variation, packet loss rate, and bit error rate of the first channel; the communication control module is further configured to calculate and determine the communication quality assessment value of the first channel based on the communication performance indicators and the preset weights corresponding to the communication performance indicators, and the communication status includes the communication quality assessment value.

[0011] In one possible implementation of the first aspect above, when the communication quality assessment value is greater than or equal to the first preset threshold, the communication control module assesses the communication status of the first channel as normal operating condition; when the communication quality assessment value is less than the first preset threshold but greater than or equal to the second preset threshold, the communication control module assesses the communication status of the first channel as degraded maintenance state and generates channel warning information; when the communication quality assessment value is less than the second preset threshold, the communication control module assesses that the communication status of the first channel meets the abnormal handover conditions.

[0012] In one possible implementation of the first aspect above, the device may further include: a third communication module, which establishes a third channel with the operation and maintenance management terminal; and a communication control module connected to the third communication module, which provides the communication status of the first channel and / or the second channel in response to an access request from the operation and maintenance management terminal via the third communication module.

[0013] In one possible implementation of the first aspect described above, the communication control module is further configured to generate channel alarm information and provide it to the energy management terminal of the energy storage system when the communication state of the first channel meets the abnormal switching conditions; and / or control the first communication module to re-receive the first communication data uploaded by the first device when the communication state of the first channel meets the communication recovery conditions.

[0014] The second aspect of this disclosure provides a hybrid communication control method for an energy storage system. Specifically, this hybrid communication control method may include: receiving first communication data uploaded by a first device of the energy storage system via a first channel; receiving second communication data uploaded by the first device and third communication data uploaded by a second device of the energy storage system via a second channel, wherein the first and second channels are independent of each other; continuously monitoring the communication status of the first channel, and controlling the second channel to receive the first communication data uploaded by the first device when the communication status of the first channel meets abnormal switching conditions.

[0015] The technical solution provided in this disclosure enables the use of a normal transmission channel as a backup transmission channel, and determines whether abnormal transmission switching is needed based on the real-time transmission status of the channel, ensuring the continuity of data transmission in the energy storage system. Furthermore, the technical solution supports real-time evaluation of the channel's communication status during transmission, identifying normal operating conditions, degradation maintenance states, and abnormal switching states. This allows for seamless switching between channels, avoiding responses only after actual channel disconnection, further ensuring the continuity of data transmission in the energy storage system. Moreover, the technical solution supports multiple wireless communication protocols and proactively supports device access and expansion based on new additions to the energy storage system, meeting the scalability requirements of the energy storage system. Finally, the technical solution supports access to an operation and maintenance management terminal, enabling querying of the global communication status of the energy storage system and problem localization through a single terminal, facilitating efficient maintenance of the energy storage system's communication status by operation and maintenance personnel. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is a schematic diagram of a hybrid communication control device applied to an energy storage system according to an embodiment of the present disclosure; Figure 2 This is a flowchart illustrating a hybrid communication control method for energy storage systems provided in an embodiment of this disclosure. Detailed Implementation

[0018] Based on the relevant descriptions in the background art, the energy management terminal of an energy storage system primarily communicates with its constituent devices via wired communication cables. If these cables experience disconnections or other abnormalities, the energy management terminal struggles to obtain the specific operating status of each component, potentially jeopardizing the safe operation of the energy storage system. To overcome these issues, this disclosure provides a hybrid communication control device and method for energy storage systems. This device utilizes a normal transmission channel as a backup channel and determines whether abnormal transmission switching is necessary based on the channel's real-time transmission status, ensuring the continuity of data transmission in the energy storage system.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the various embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are provided in the embodiments of this disclosure to facilitate a better understanding of the disclosure. However, the technical solutions claimed in this disclosure can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this disclosure. The various embodiments can be combined with and referenced by each other without contradiction.

[0020] In some embodiments of this disclosure, Figure 1 A schematic diagram of a hybrid communication control device applied to an energy storage system is shown. In some embodiments, such as... Figure 1 The hybrid communication control device shown for use in energy storage systems may specifically include a first communication module 110, a second communication module 120, and a communication control module 130.

[0021] In some embodiments, such as Figure 1 As shown, the first communication module 110 establishes a first channel 111 with the first device 001 of the energy storage system to receive the first communication data uploaded by the first device 001; the second communication module 120 establishes a second channel 121 with the first device 001 and the second device 002 of the energy storage system respectively to receive the second communication data uploaded by the first device 110 and the third communication data uploaded by the second device 002. The first channel 111 and the second channel 121 are independent of each other.

[0022] In some embodiments, the first device can be a core component of the energy storage system, such as a Battery Bank Management System (BBMS) responsible for monitoring the core state parameters of each battery cluster in the energy storage system, including but not limited to voltage, current, temperature, state of charge (SOC), and state of health (SOH), and providing overcharge, over-discharge, and over-temperature protection for the battery clusters. In some embodiments, the first device can also be a Power Conversion System (PCS) in the energy storage system, used to connect the battery clusters to the external power grid / load, enabling bidirectional conversion between DC and AC power, and controlling the overall charging and discharging process of the energy storage system. In some embodiments, the first device 001 can also be a fire monitoring subsystem in the energy storage system, specifically designed for electrochemical energy storage systems, especially lithium-ion battery energy storage systems, to prevent, suppress, and control battery fires and their spread. In some embodiments, the first device 001 can also be an environmental monitoring subsystem in the energy storage system, capable of providing a suitable working environment for the energy storage system, especially containerized energy storage power stations or the interior of energy storage compartments, and precisely controlling the temperature and / or humidity of the working environment.

[0023] It is understandable that the aforementioned first device, as a relatively critical device in the energy storage system, requires high-speed and stable uploading of its key data information under operating conditions. This enables the entire energy storage system to accurately and timely perceive the real-time operating status of each first device. In some embodiments, such as... Figure 1As shown, key data of the first device 001 can be uploaded to the hybrid communication control device through a first channel 111 established with the first communication module 110, and the hybrid communication control device can then synchronize the key data to the energy management terminal 003 of the energy storage system. In some embodiments, the first communication data transmitted through the first channel may specifically include real-time charging and discharging power, total voltage and current, etc. in the power conversion subsystem; real-time voltage, real-time temperature, real-time state of charge, etc. of all battery clusters in the battery cluster management subsystem; and monitoring status signals of the fire monitoring subsystem and the environmental monitoring subsystem. These data can reflect the high-frequency acquisition and core key information of each first device. Users can configure the first communication data according to their actual needs, and no limitations are imposed here. Understandably, because the first communication data plays a crucial role in the safe operation of the entire energy storage system, it is essential to ensure its continuous, stable, and high-speed transmission. Therefore, the transmission stability and rate of the first channel can be configured at a high level, while the transmission latency can be configured at a low level. In some specific instances, the first channel can be configured as a wired transmission channel, where the first communication module can support industrial bus protocols such as Ethernet, CAN, and RS485 to establish direct, stable, and real-time wired communication connections with various first devices, offering higher stability and lower transmission latency compared to wireless connections. With the continuous development of communication transmission technology, users can also choose other transmission methods with higher transmission stability and lower transmission latency to establish the aforementioned first channel according to their actual needs; this is not limited here.

[0024] In some embodiments, such as Figure 1As shown, in addition to uploading critical data, the first device 001 also needs to upload non-critical data. This non-critical data is the second data provided in the aforementioned embodiments, such as device operation logs, average device operating temperature, and historical voltage change curves of a single battery cluster. Compared to the first data (i.e., critical data), the second data (i.e., non-critical data) has finer granularity and a lower update frequency. During transmission, it is necessary to avoid interfering with the transmission of the first communication data. Therefore, a second channel 121 independent of the first channel 111 can be selected for transmission. In some embodiments, the second channel can be configured as a wireless transmission channel, wherein the second communication module can support various wireless communication technologies such as Wi-Fi, 4G / 5G, Zigbee, and LoRa to establish wireless communication connections with each of the first devices. Correspondingly, the transmission stability of the first channel is higher than that of the second channel, and / or the transmission delay of the first channel is lower than that of the second channel. In some embodiments, the second device can be any device in the energy storage system other than the first device, capable of supporting the safe and stable operation of the energy storage system. Examples include combustible gas sensors, energy storage chamber edge temperature sensors, and humidity sensors, etc., which are not limited here. The data that the second device needs to upload to the energy management terminal of the energy storage system, i.e., the third data provided in the aforementioned embodiments, such as temperature sensing information uploaded by the energy storage chamber edge temperature sensor and humidity sensing information uploaded by the energy storage chamber edge humidity sensor, can also be transmitted to the hybrid communication control device through the second channel, which is not limited here. In some embodiments, considering the transmission characteristics of the second channel being configured as a wireless transmission channel, data can be packaged and uploaded periodically or in batches of varying sizes, and buffered at the hybrid communication control device to avoid interfering with the upload process of the first communication data to the energy management terminal of the energy storage system, which is not limited here.

[0025] In some embodiments, such as Figure 1As shown, the communication control module 130 is connected to the first communication module 110 and the second communication module 120 respectively. It continuously monitors the communication status of the first channel 111 and controls the second communication module to receive the first communication data uploaded by the first device when the communication status of the first channel meets the abnormal switching conditions. It can be understood that by continuously monitoring the communication status of the first channel 111, the changes in the communication quality of the first channel 111 can be accurately obtained. Furthermore, when the communication quality of the first channel 111 is insufficient to stably transmit the critical first communication data, the first communication data can be switched to the second channel 121 for transmission in a timely manner, thereby achieving redundant transmission protection for the first communication data. Compared to setting up an independent redundant transmission channel for the first communication data, which wastes communication resources because the redundant transmission channel is idle under normal circumstances or only transmits a very small amount of heartbeat data, the technical solution provided in this disclosure can utilize the normal transmission channel as a backup transmission channel and determine whether abnormal transmission switching is needed based on the real-time transmission status of the channel. This ensures the continuity of transmission of critical data in the energy storage system and achieves efficient utilization of the overall communication bandwidth. In some embodiments, if some core devices in the energy storage system have higher transmission stability requirements, corresponding redundant transmission channels can be added to them based on the technical solution provided in this disclosure, which is not limited here. The determination of whether the communication status of the first channel meets the abnormal switching conditions will be explained in detail later, and will not be repeated here.

[0026] Based on the description provided in the foregoing embodiments, it can be understood that in the technical solutions provided in this disclosure, the transmission priority of the first communication data is higher than that of the second communication data, and also higher than that of the third communication data. When the first, second, and third communication data are all uploaded through the second channel, the second channel prioritizes the transmission of the first communication data. In some embodiments, specifically, when the first, second, and third communication data are all uploaded through the second channel, the second channel can reduce the transmission rate of the second and third communication data to provide sufficient transmission bandwidth for the transmission of the first communication data. The second and third communication data that are not transmitted in time can be cached at the first and second devices. In some embodiments, further, when reducing the transmission rate still cannot meet the transmission needs of the first communication data in a short period of time, the second channel can also suspend the transmission of the second and third communication data, and the first and second devices can temporarily store the unuploaded second and third communication data respectively until the second channel has sufficient transmission bandwidth before performing the corresponding breakpoint resume operation. Users can also configure the priority transmission scheme of the first communication data according to their actual needs, which is not limited here. In some embodiments, during the process of controlling the second communication module to receive the first communication data uploaded by the first device, the second communication module can send a transmission channel switching instruction to the first device through the second channel, so that the first device can switch to the second channel to transmit the first communication data; at the same time, the second communication module can send a data transmission restriction instruction to the first device and the second device through the second channel, so that the first device and the second device can reduce the upload rate of the second communication data and the third communication data, or cause the first device and the second device to suspend the upload of the second communication data and the third communication data, which is not limited here.

[0027] In some embodiments of this disclosure, further, such as Figure 1 The communication control module 130 shown is further configured to generate channel alarm information and provide it to the energy management terminal 003 of the energy storage system when the communication status of the first channel 111 meets the abnormal switching conditions, so that the energy storage system can promptly detect any abnormalities that may occur in the first channel 111 and promptly generate corresponding operation and maintenance tasks. In some embodiments, the communication control module is further configured to control the first communication module to re-receive the first communication data uploaded by the first device when the communication status of the first channel meets the communication recovery conditions, that is, when the first channel is restored to normal communication after operation and maintenance repair, the uploading process of the first communication data is promptly switched back to the first channel to ensure continuous, stable, and high-speed transmission of the first communication data.

[0028] In some embodiments, the communication control module can further be used to obtain the communication performance indicators of the first channel, wherein the communication performance indicators include one or any combination of the channel transmission delay, the change of channel transmission delay, the packet loss rate, and the bit error rate of the first channel. Users can select specific indicator contents that can reflect the communication performance of the first channel according to actual needs, and lay the data foundation for the calculation of subsequent communication quality assessment values, which is not limited here.

[0029] In some embodiments, the communication control module is further configured to calculate and determine a communication quality assessment value for the first channel based on communication performance indicators and their corresponding preset weights, wherein the communication status includes the communication quality assessment value. It is understood that, due to differences in the data units of various communication performance indicators, during the calculation of the communication quality assessment value, each communication performance indicator can first be converted into a unitless score that can assess its utility level, i.e., a communication utility score. This communication utility score can quantitatively characterize the degree to which a communication performance indicator exceeds its performance threshold. The higher the degree to which a communication performance indicator exceeds its performance threshold, the worse the communication performance reflected by that communication performance indicator. In some embodiments, the communication utility score can be obtained based on the following mathematical expression: Ui(xi) =exp(ki·(τi-xi)) / [1+exp(ki·(τi-xi))]; Where Ui(xi) is the communication utility score corresponding to the i-th communication performance index, xi is the original measurement value corresponding to the i-th communication performance index, τi is the performance critical threshold corresponding to the i-th communication performance index, ki is the curve sharpness coefficient corresponding to the i-th communication performance index, where the larger the value of ki, the steeper the curve is near the threshold, and the more sensitive the score is to changes in the index, and exp represents an exponential function with the natural constant e as the base. For example, taking the channel transmission delay of the first channel as a communication performance indicator, its performance threshold can be set to 45ms, 50ms, or 55ms, without limitation. Similarly, taking the variation in the channel transmission delay of the first channel as a communication performance indicator, its performance threshold can be set to a delay jitter threshold of 18ms, 20ms, or 22ms, without limitation. Furthermore, taking the packet loss rate of the first channel as a communication performance indicator, considering that the first communication data is extremely sensitive to packet loss, its performance threshold can be set to 1.5%, 2%, or 2.5%, without limitation. Finally, taking the bit error rate of the first channel as a communication performance indicator, considering that the first communication data requires extremely high transmission accuracy, its performance threshold can be set to 10 to the power of -12, which is three orders of magnitude stricter than the bit error rate threshold of the CAN bus (10 to the power of -9), without limitation. The communication utility score obtained through the above mathematical expression can normalize the original measurement value corresponding to the i-th communication performance index into a unitless score that represents its utility level, with a range between [0, 1], which is not limited here.

[0030] In some embodiments, the communication quality assessment value of the first channel can be obtained based on the following mathematical expression: Q=ω1·U1(x1)+ω2·U2(x2)+...+ωN·UN(xN); Wherein, U1(x1), U2(x2)...UN(xN) are the communication utility scores corresponding to each communication performance indicator, and ω1, ω2...ωN are the preset weights corresponding to each communication performance indicator. In a specific example, taking the communication performance indicators including the channel transmission delay, the variation of the channel transmission delay, the packet loss rate, and the bit error rate of the first channel as an example, the preset weight corresponding to the channel transmission delay can be set to 0.2 to reflect the first channel's requirement for real-time transmission; the preset weight corresponding to the variation of the channel transmission delay (i.e., delay jitter) can be set to 0.1 to reflect that for non-hard real-time large data transmissions, the impact of jitter is relatively small; the preset weight corresponding to the packet loss rate can be set to 0.3 to reflect the first channel's high requirements for data transmission integrity and reliability; the preset weight corresponding to the bit error rate can be set to 0.4 to reflect the first channel's extreme pursuit of accuracy in high-bandwidth, large-data-volume transmission, which is one of its core quality indicators and is not limited here.

[0031] In some embodiments of this disclosure, the aforementioned communication quality assessment value is further proportional to the actual communication quality of the first channel. When the communication quality assessment value is greater than or equal to a first preset threshold, the communication control module can assess the communication state of the first channel as a normal operating state, at which point the transmission process of the first communication data by the first channel can be maintained. In some embodiments, when the communication quality assessment value is less than the first preset threshold but greater than or equal to a second preset threshold, the communication control module can assess the communication state of the first channel as a degraded maintenance state and generate channel warning information. In some embodiments, the second preset threshold is less than the first preset threshold, and the first and second preset thresholds can be adaptively adjusted by the user according to the actual situation, without limitation herein. In the first embodiment, when the communication quality assessment value is less than the first preset threshold but greater than or equal to the second preset threshold, it indicates that the first channel can still maintain the transmission of the first communication data, but the transmission communication quality has degraded, and channel warning information is triggered. In some embodiments, further, when the communication quality assessment value is less than a first preset threshold and greater than or equal to a second preset threshold, the second channel can be notified to prepare for a possible channel handover, adjusting the transmission rate of the second and / or third communication data to reserve sufficient communication bandwidth for a possible channel handover, or transferring a portion of the first communication data to the second channel for transmission, which is not limited here. In some embodiments, when the communication quality assessment value is less than the second preset threshold, the communication control module assesses that the communication status of the first channel meets the abnormal handover conditions and executes the channel handover operation provided in the foregoing embodiments, which will not be elaborated here.

[0032] In some embodiments of this disclosure, further, such as Figure 1As shown, this device may further include a third communication module 140, which establishes a third channel 141 with the operation and maintenance management terminal 004. Correspondingly, the communication control module 130 is connected to the third communication module and, through the third communication module, provides the communication status of the first channel and / or the second channel in response to the access request from the operation and maintenance management terminal. In some embodiments, the third channel may be configured as a wireless communication channel, such as a dedicated Wi-Fi hotspot of the hybrid communication control device, which is not limited here. During the operation and maintenance of the energy storage system, the dedicated Wi-Fi hotspot emitted by the hybrid communication control device can be searched through the operation and maintenance management terminal. There is no need to find a physical interface or configure complex network parameters. Through wireless Wi-Fi connection, the hybrid communication control device and all its connected first and second devices can be accessed with low latency and high speed. This allows all debugging operations to be carried out in a local wireless network isolated from the external Internet. It enables the querying of the global communication status of the energy storage system and the location of problems through a single operation and maintenance management terminal, facilitating efficient maintenance of the communication status of the energy storage system by operation and maintenance personnel, while avoiding the risks that may be brought about by accessing the core production network of the energy storage system.

[0033] In some embodiments of this disclosure, since the second channel is configured as a wireless communication channel, the scalability of the wireless communication channel can be utilized to support communication with newly connected energy storage system devices. Specifically, the hybrid communication control device can periodically scan for energy storage system devices that support wireless communication. When a newly connected energy storage system device that supports wireless communication appears, it can be automatically discovered and added to the "unknown device list," and then confirmed and assigned a corresponding logical identity by maintenance personnel. For example, during the operation of the energy storage system, monitoring of combustible gases (such as carbon monoxide) can be added to the existing energy storage compartment. This can be achieved by adding a wireless combustible gas sensor that supports the Zigbee / LoRa protocol and realizing automated grid-connected communication through the hybrid communication control device. The entire process does not affect the operation of any existing wired equipment, does not require shutdown for line modification, and can support the scalability needs of the energy storage system.

[0034] In the embodiments of this disclosure, the first channel and the second channel are not only able to receive various communication data uploaded by the first device and the second device, but also support controlling the first device and / or the second device to perform corresponding regulation operations according to the control commands issued by the energy management terminal of the energy storage system. That is, the first channel and the second channel support uplink and downlink data transmission at the same time, which is not limited here.

[0035] In some embodiments of this disclosure, Figure 2 A flowchart illustrating a hybrid communication control method applied to an energy storage system is shown, such as... Figure 2As shown, process 200 may specifically include the following steps: Step 210: Receive the first communication data uploaded by the first device of the energy storage system based on the first channel.

[0036] Step 220: Based on the second channel, receive the second communication data uploaded by the first device and the third communication data uploaded by the second device of the energy storage system. In some embodiments, the first channel and the second channel are independent of each other.

[0037] Step 230: Continuously monitor the communication status of the first channel, and when the communication status of the first channel meets the abnormal switching conditions, control the second channel to receive the first communication data uploaded by the first device. It is understood that each step in the above process 200 can be implemented based on the hybrid communication control device provided in the foregoing embodiments, and will not be elaborated upon here.

[0038] In summary, the technical solution provided in this disclosure enables the use of a normal transmission channel as a backup transmission channel, and determines whether abnormal transmission switching is necessary based on the real-time transmission status of the channel, thus ensuring the continuity of data transmission in the energy storage system. Furthermore, the technical solution provided in this disclosure supports real-time evaluation of the channel's communication status during transmission, identifying normal operating conditions, degradation maintenance states, and abnormal switching states. This allows for seamless switching between channels, avoiding the need for switching responses only after an actual channel disconnection, further ensuring the continuity of data transmission in the energy storage system. Furthermore, the technical solution provided in this disclosure supports multiple wireless communication protocols and proactively supports device access and expansion based on the addition of new devices in the energy storage system, meeting the scalability requirements of the energy storage system. Furthermore, the technical solution provided in this disclosure supports access to an operation and maintenance management terminal, enabling the querying of the global communication status of the energy storage system and problem localization through a single operation and maintenance management terminal, facilitating efficient maintenance of the energy storage system's communication status by operation and maintenance personnel.

[0039] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A hybrid communication control device for use in energy storage systems, characterized in that, include: A first communication module establishes a first channel with a first device of the energy storage system to receive first communication data uploaded by the first device. The second communication module establishes a second channel with the first device and the second device of the energy storage system, respectively, for receiving second communication data uploaded by the first device and third communication data uploaded by the second device. The first channel and the second channel are independent of each other. The communication control module is connected to the first communication module and the second communication module respectively, and is used to continuously monitor the communication status of the first channel, and when the communication status of the first channel meets the abnormal switching conditions, control the second communication module to receive the first communication data uploaded by the first device.

2. The hybrid communication control device for energy storage systems according to claim 1, characterized in that, The transmission stability of the first channel is higher than that of the second channel; and / or The transmission delay of the first channel is lower than that of the second channel.

3. The hybrid communication control device for energy storage systems according to claim 1 or 2, characterized in that, The first channel is configured as a wired transmission channel, and the second channel is configured as a wireless transmission channel.

4. The hybrid communication control device for energy storage systems according to claim 1, characterized in that, The transmission priority of the first communication data is higher than that of the second communication data, and the transmission priority of the first communication data is higher than that of the third communication data. When the first communication data, the second communication data, and the third communication data are all uploaded through the second channel, the second channel prioritizes the transmission of the first communication data.

5. The hybrid communication control device for energy storage systems according to claim 1 or 4, characterized in that, When the first communication data, the second communication data, and the third communication data are all uploaded through the second channel, the second channel reduces the transmission rate of the second communication data and the third communication data; or The second channel suspends the transmission of the second communication data and the third communication data, and the first device and the second device respectively temporarily store the second communication data and the third communication data that have not been uploaded.

6. The hybrid communication control device for energy storage systems according to claim 1, characterized in that, The communication control module is also used to obtain the communication performance indicators of the first channel, which include one or any combination of the following: channel transmission delay of the first channel, changes in the channel transmission delay, packet loss rate, and bit error rate. The communication control module is further configured to calculate and determine the communication quality assessment value of the first channel based on the communication performance index and the preset weights corresponding to the communication performance index, wherein the communication status includes the communication quality assessment value.

7. The hybrid communication control device for energy storage systems according to claim 6, characterized in that, When the communication quality assessment value is greater than or equal to a first preset threshold, the communication control module assesses the communication status of the first channel as a normal operating condition. When the communication quality assessment value is less than the first preset threshold and greater than or equal to the second preset threshold, the communication control module assesses the communication status of the first channel as a degraded maintenance state and generates channel warning information. When the communication quality assessment value is less than the second preset threshold, the communication control module assesses that the communication status of the first channel meets the abnormal switching conditions.

8. The hybrid communication control device for energy storage systems according to claim 1, characterized in that, Also includes: The third communication module establishes a third channel with the operation and maintenance management terminal; The communication control module is also connected to the third communication module, and is used to provide the communication status of the first channel and / or the second channel in response to the access request of the operation and maintenance management terminal through the third communication module.

9. The hybrid communication control device for energy storage systems according to claim 1, characterized in that, The communication control module is further configured to generate channel alarm information and provide it to the energy management terminal of the energy storage system when the communication status of the first channel meets the abnormal switching conditions; and / or When the communication status of the first channel meets the communication recovery conditions, the first communication module is controlled to resume receiving the first communication data uploaded by the first device.

10. A hybrid communication control method applied to an energy storage system, characterized in that, include: Based on the first channel, receive the first communication data uploaded by the first device of the energy storage system; Based on the second channel, the system receives second communication data uploaded by the first device and third communication data uploaded by the second device of the energy storage system, wherein the first channel and the second channel are independent of each other. The communication status of the first channel is continuously monitored, and when the communication status of the first channel meets the abnormal switching conditions, the second channel is controlled to receive the first communication data uploaded by the first device.

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