CN117811868A - Electrochemical energy storage embedded communication service system - Google Patents
Electrochemical energy storage embedded communication service system Download PDFInfo
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- CN117811868A CN117811868A CN202310157139.6A CN202310157139A CN117811868A CN 117811868 A CN117811868 A CN 117811868A CN 202310157139 A CN202310157139 A CN 202310157139A CN 117811868 A CN117811868 A CN 117811868A
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Abstract
The invention provides an electrochemical energy storage embedded communication service system, which is characterized by comprising: the system comprises an initialization module, a protocol configuration strategy module, a message bus sending module, a message bus receiving module, a configuration module, a serial port message module, a CAN message analysis module and an Ethernet message analysis module; the configuration module is used for providing a man-machine interaction interface, registering or canceling the service module on line based on the protocol template and the equipment template, and also is used for configuring and constructing a network structure to determine the equipment type and IP information of each node. The invention has the advantages that: the system is based on actual equipment, communication media and communication protocols in the energy storage power station, is matched with a visual model configuration tool, realizes loading and unloading of modules through an online registration/cancellation mechanism, realizes online debugging of problems, comprehensively improves research and development efficiency of embedded intelligent terminals in the energy storage field, and simplifies difficulty of accessing various equipment and superior platforms.
Description
Technical Field
The invention belongs to the field of energy storage power stations and embedded systems, and particularly relates to an electrochemical energy storage embedded communication service system.
Background
Along with the continuous development of the energy storage industry in China, the technical characteristics of the energy storage power station are also continuously adjusted and changed. There are various types of electric energy storage modes at present, mainly including mechanical energy storage, electrochemical energy storage and electromagnetic energy storage. Electrochemical energy storage systems are classified as lead acid batteries, redox flow batteries, sodium sulfur batteries, and lithium ion batteries.
The Battery Management System (BMS) plays a role in the electrochemical energy storage system, and is responsible for monitoring the state of the energy storage unit and playing a role in protection; secondly, a temperature and humidity control sensor in the energy storage unit is managed, so that the energy storage unit has a thermal management function; thirdly, balancing the inconsistency of the batteries; fourth, provide the external application interface.
As can be seen from fig. 1, the BMS system needs to establish data communication with the other three sub-modules in the electrochemical energy storage system. The monitoring protection communication is completed with the energy storage unit, the energy storage unit comprises a plurality of battery cluster devices, a movable ring device, a fire-fighting sensor and a PCS (personal communication System), the data communication is realized, the data are analyzed and processed and then sent to the control system, and meanwhile, the control system also issues control instructions to the BMS system. In an electrochemical energy storage system, three types of communication protocols, CAN communication, serial communication and Ethernet communication are involved, and the communication needs a service system to develop a corresponding communication protocol API so as to acquire and analyze service data packets. Because of complex structure and different communication protocols, the development threshold is high and the engineering debugging period is long when the electrochemical energy storage management system is developed. Therefore, the application development difficulty is simplified, the debugging period is shortened, and the method becomes a key factor for building the power-assisted energy storage power station.
Disclosure of Invention
The invention aims to overcome the defects of high development threshold and long engineering debugging period when an electrochemical energy storage management system is developed.
In order to achieve the above object, the present invention provides an electrochemical energy storage embedded communication service system, which comprises:
the initialization module is used for carrying out internal self-checking after the system is started, scheduling other modules to be started, loading the existing configuration strategy and testing the communication states of the protocol interface, the peripheral equipment and the message bus;
the protocol configuration strategy module is used for generating a configuration strategy, loading the configuration strategy after starting, dynamically modifying the user configuration strategy and carrying out message protocol conversion;
the message bus sending module is used for loading a corresponding message bus library according to the configuration strategy and sending the converted message to the message bus;
the message bus receiving module is used for loading a corresponding message bus library according to the configuration strategy and receiving the message content on the message bus;
the configuration module is used for providing a man-machine interaction interface, registering or canceling the service module on line based on the protocol template and the equipment template, configuring and constructing a network structure, and determining the equipment type and the IP information of each node;
the serial port message module is used for receiving the serial port message and analyzing the message according to the configured protocol policy content;
the CAN message analysis module is used for receiving the CAN bus message and analyzing the message according to the configured protocol policy content; and
and the Ethernet message analysis module integrates a TCP/IP protocol cluster and an EtherCAT Ethernet communication protocol and is used for analyzing the message according to the configured protocol configuration strategy content.
As an improvement of the above system, the content of the protocol template includes a protocol type and a media attribute;
the protocol types support IEC101/102/103/104/61850, MODBUS, GB/T27930-2011, DL-T645-2007 and CDT/DISA communication protocols;
the media properties support serial port, CAN port and ethernet/GPRS.
As an improvement to the above system, the device template attributes include device description, device type, and specification template.
As an improvement of the above system, the flow of the configuration module online registering service module includes:
forming a configuration file according to a protocol template and an equipment template selected by a user in a service module;
executing a registration mechanism according to the configuration file in an API calling mode, and starting a system registration event; and detecting whether a multi-user registration condition exists, and if the multi-user registration condition does not exist, calling a protocol configuration strategy module to generate a configuration strategy so as to finish registration of the service module.
As an improvement of the above system, the flow of the configuration module for online cancellation of the service module includes:
the configuration module calls an initialization module to check whether the service module to be logged off is running or not; if the service module is running, calling a configuration strategy module to cancel the corresponding configuration strategy;
after executing the logout instruction, the configuration policy module calls a logout API of the initialization module to disconnect the existing connection and release the occupied resources of the cache.
As an improvement of the above system, the system further comprises:
and the message filtering module is used for filtering out the message content which is not needed by the user according to the filtering strategy conditions configured by the user, and does not convert the filtered message content in the message protocol conversion process.
As an improvement of the above system, the system further comprises:
the serialization module is used for converting the message into a format convenient for transmission; the supported serialization formats include: binary format, byte array, JSON string and XML string; and
and a deserialization module: for recovering the serialized data into a message object.
As an improvement of the above system, the system further comprises:
the log module is used for recording the running state of the system and calling record information among APIs; and compressing and deleting the generated log according to the configuration strategy.
As an improvement of the above system, the system supports multiple instances running simultaneously, each instance performing a specific communication type of process.
Compared with the prior art, the invention has the advantages that:
an embedded communication service system for electrochemical energy storage is based on actual equipment, communication media and communication protocols in an energy storage power station, a visual model configuration tool is matched on the basis of meeting a data access function, a communication protocol to be accessed at this time is selected to form a template, an instantiation is made into a target file according to the number of equipment, when the device is started, a memory database is formed according to the content of the configuration file, data format conversion of the equipment and a system is realized through mapping of data points, on-line loading and unloading of a module can be realized through an on-line registration/cancellation mechanism, on-line debugging of problems is realized, research and development efficiency of an embedded intelligent terminal in the energy storage field is comprehensively improved, difficulty of accessing various equipment and superior platforms is simplified, and accordingly development period and engineering configuration difficulty are greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a prior art electrochemical energy storage system;
FIG. 2 is a diagram of an electrochemical energy storage embedded communication service system service framework;
FIG. 3 is a schematic diagram of an electrochemical energy storage embedded communication service system;
FIG. 4 is a flow chart of an online registration service module;
FIG. 5 is a flow chart of an online logout service module;
FIG. 6 is a diagram of a protocol template structure;
FIG. 7 is a diagram of a protocol template library;
FIG. 8 is a diagram of a device template library.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides an electrochemical energy storage embedded communication service system, which aims at a lithium ion battery to manufacture battery cells, and a plurality of battery cells adopt electrochemical energy storage units manufactured in series-parallel connection. The electrochemical energy storage system comprises an energy storage unit, a PCS system, an energy storage unit management system and a control system. The energy storage unit comprises a battery cluster formed by connecting multiple battery cells in series and parallel, a Battery Management System (BMS), a confluence system, a thermal management system and a fire-fighting and video monitoring system.
The invention provides an electrochemical energy storage embedded communication service system, which is mainly characterized in that: the equipment access templatization, the communication protocol plug-in unit and the module on-line registration/cancellation mechanism are supported, so that the dynamic loading and unloading of the service module are realized, and meanwhile, the engineering practice targets of reducing development threshold, reducing debugging period and simplifying application difficulty are realized by matching with a visual equipment protocol configuration modeling tool for monitoring work.
As shown in fig. 2, the embedded communication service system integrates CAN communication, serial communication and ethernet communication three communication protocol interfaces and common message middleware API, and distributes service data to the message bus in the roles of message producers by means of visual configuration policies for different manufacturers and different devices. The business layer supports a variety of consumers, such as: the file instantiation module, the message monitoring module, the service data module and the like can subscribe the service data of the corresponding service through the message bus. The system supports the subscription and the issuing of data, each service issues a control instruction to a message bus, the equipment subscribes to the control instruction data in the message bus, and the system issues messages to each equipment according to different protocols.
The invention provides an electrochemical energy storage embedded communication service system, which is based on an energy storage power station access device, takes data interaction between the device and the system as a guide, and takes an embedded cross-platform communication platform application as a final target. As shown in fig. 3, the system includes the following modules:
1. an initialization module: after the embedded communication service system is started, internal self-checking is carried out, other modules are scheduled to be started, the existing configuration strategy is loaded, and the communication states of the protocol interface, the peripheral and the message bus are tested.
2. Protocol configuration policy module: and generating a configuration strategy based on the configuration module, loading configuration after the protocol interface is started, and storing a message conversion strategy template, wherein the message conversion strategy template comprises the functions of generating a message protocol conversion template, carrying out message protocol conversion, dynamically modifying a user configuration strategy and the like.
3. Message filtering module: and filtering the unnecessary message content of the user according to the filtering strategy conditions configured by the user. In the process of message protocol conversion, the filtered message content is not converted.
4. And a log module: loading after the initialization module is started, and recording the running state of the system and calling record information among APIs; and compressing and deleting the generated log according to the configuration strategy.
5. And a serialization module: converting the message into a format convenient for transmission, wherein the supported serialization format comprises: binary format, byte array, JSON string, XML string, etc.
6. And a deserialization module: for recovering the serialized data into a message object.
7. Message bus sending module: and loading a corresponding message bus library according to the user configuration strategy, and sending the converted message to a message bus.
8. Message bus receiving module: and loading a corresponding message bus library according to the user configuration strategy, and receiving the message content on the message bus.
9. And a configuration module: the configuration module provides a convenient man-machine interaction interface, and registers and cancels the service module on line based on the protocol template and the equipment template. The method is used for configuring and constructing a network structure and determining information such as the type and IP of each node device.
The user registers and de-registers the service module through the man-machine interaction interface realized by the configuration, the registered service module generates corresponding configuration files in the initialization module and the protocol configuration strategy module, the communication protocol and the equipment are abstracted and dynamically registered on line, the configuration strategy is generated, and the configuration strategy is loaded into the application.
The "online registration/deregistration" flow is shown in fig. 4 and 5.
The online registration process comprises the following steps: a user selects a protocol template and an equipment template corresponding to the service module, and the configuration module forms a configuration file; the user executes online registration operation through a configuration module, the configuration module executes an in-module registration mechanism through an API calling mode, and a system registration event is started; the registration event detects whether the multi-user registration exists or not, and if the multi-user registration exists, a protocol configuration policy module is called to generate a configuration policy.
The online logout process comprises the following steps: the user executes the online logout operation through the configuration module, the system starts event detection through the initialization module, whether the service module to be logout is operating correctly is checked, if the service module is operating, the configuration strategy module is invoked to logout the corresponding configuration strategy, otherwise, the system returns to the initialization module directly. After the configuration policy module is executed with the cancellation instruction, the cancellation API of the initialization module is called to disconnect the existing connection, and the occupied resources of the cache are released.
The registered equipment and protocol of the service module can generate an equipment template and a protocol template, and a user can create a networking structure and a mapping relation by using the configuration interface through the binding relation of the equipment and the protocol; the user can also log off the registered model online through the configuration interface.
On the other hand, based on the organic combination of the configuration module and the configuration strategy module, the mapping relation between the equipment and the protocol configuration is established by the user through the software man-machine interaction interface.
The protocol configuration plug-in and the equipment mastering realize flexible adaptation of equipment and protocols; by modifying the configuration file, loading of the target communication protocol is achieved, and the "protocol plug-in design" is shown in fig. 6.
Conventions and equipment templating mainly provide an instantiated data base for the operation of the communication framework.
A protocol template:
the common characteristics of typical communication protocols of CAN bus/serial port/Ethernet are abstracted, corresponding protocol plug-ins are respectively arranged, and protocol template construction is carried out according to the characteristics of different protocols of different media to form a protocol template library, as shown in figure 7.
The content of the specification template includes the specification type and media attributes. The protocol types support communication protocols such as IEC101/102/103/104/61850, MODBUS, GB/T27930-2011 (BMS communication), DL-T645-2007 (ammeter communication protocol), CDT/DISA and the like. The media attribute supports serial port, CAN port, ethernet/GPRS and other media.
Equipment template:
based on the access equipment and the communication protocol; a device list is created, and device template attributes include device description, device type, and specification template (multiple communication mediums may be available for the same device when comprehensively considered in the device template process), and a device template library is shown in fig. 8.
10. Serial port message module: and receiving the serial port message, and analyzing the message according to the configured protocol policy content.
11. CAN message analysis module: and receiving the CAN bus message, and analyzing the message according to the configured protocol policy content.
12. And an Ethernet message analysis module: common Ethernet communication protocols such as TCP/IP protocol clusters, etherCAT and the like are integrated, and the issuing command and the uploading message are analyzed according to a configuration strategy.
The embedded communication service system adopts a general communication service framework in the design process, and can load a plurality of communication protocols according to the description of the configuration file in the actual operation process to form an independent example for data access of different media/protocols.
The embedded communication service system can be flexibly deployed, in the actual application process of the system, one or more instances supported by the embedded communication service system can be operated at the same time, each instance can complete the processing of a specific communication type, and an application module can interact with a certain instance operated in the system to complete the processing of a certain communication by utilizing an application interface of a communication platform, and the platform architecture is shown in fig. 2.
The modules of the embedded communication service system are interacted by adopting a message mechanism; based on the 'message/service' bus, the interaction among the modules of the system is realized, and the problem hidden trouble caused by direct calling of the modules is effectively avoided by adopting the design idea of loose coupling; in the practical application process, service interaction is abstracted into messages based on the carding of the application scene of the energy storage service, each service module does not have a direct calling relationship any more, and all the service interaction is interacted based on a message mechanism.
The embedded communication service system adopts a 'configuration' concept to develop the protocol configuration work, the association and binding of equipment and protocols are completed through a visual interface, the association of the graphic assembly and a designated data model is realized through a unified interface, and the effective association of the equipment and the data is completed through a configuration tool designed by the visual tool. In one energy storage unit, the BMS system needs to communicate with a plurality of battery clusters, the mobile ring device communicates, and the fire protection system communicates, and some manufacturers also exist in the case of PCS communication. By adopting the configuration design idea, a single battery cluster, a movable ring, a fire sensor and a PCS are abstracted into equipment through a visual interface and are associated with a corresponding protocol, so that the customization requirement can be rapidly met.
The template embedded communication service system supports an online registration/cancellation mechanism of a service module, the service module can be flexibly loaded/unloaded by configuration according to the requirement, and the framework realizes registration/cancellation of the service module by detecting core configuration parameters; according to the actual operation requirement of the energy storage power station, the design concept of 'communication protocol plug-in' first-time module 'online registration/cancellation' is based, the operation characteristic of the power station is abstracted, the communication service framework supports 'online registration/cancellation' of the service module, namely, in the operation process of the communication service framework, the core operation configuration file can be modified according to the requirement, the operation/uninstallation of a specific service module can be designated, the problem positioning difficulty is greatly simplified, and the key effect is played for the problem positioning and investigation in the operation process
In addition, based on the unified data interface formatted by the message bus, the universal data analysis mode of the CAN interface/serial port/Ethernet communication medium is abstracted, the embedded communication service system encapsulates the data model, forms a corresponding service module, and follows a data subscription mechanism to realize the data interaction between each module and the bus; the interaction of invalid data on a bus is reduced to the greatest extent while the safety and consistency of data transmission are ensured, so that the data communication efficiency is improved.
The developed data access device based on the embedded communication service system mainly has the access objects of a PCS/battery system, an ammeter, a smoke sensor and other dynamic ring equipment.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and are not limiting. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the appended claims.
Claims (9)
1. An embedded communication service system for electrochemical energy storage, the system comprising:
the initialization module is used for carrying out internal self-checking after the system is started, scheduling other modules to be started, loading the existing configuration strategy and testing the communication states of the protocol interface, the peripheral equipment and the message bus;
the protocol configuration strategy module is used for generating a configuration strategy, loading the configuration strategy after starting, dynamically modifying the user configuration strategy and carrying out message protocol conversion;
the message bus sending module is used for loading a corresponding message bus library according to the configuration strategy and sending the converted message to the message bus;
the message bus receiving module is used for loading a corresponding message bus library according to the configuration strategy and receiving the message content on the message bus;
the configuration module is used for providing a man-machine interaction interface, registering or canceling the service module on line based on the protocol template and the equipment template, configuring and constructing a network structure, and determining the equipment type and the IP information of each node;
the serial port message module is used for receiving the serial port message and analyzing the message according to the configured protocol policy content;
the CAN message analysis module is used for receiving the CAN bus message and analyzing the message according to the configured protocol policy content; and
and the Ethernet message analysis module integrates a TCP/IP protocol cluster and an EtherCAT Ethernet communication protocol and is used for analyzing the message according to the configured protocol configuration strategy content.
2. The electrochemical energy storage embedded communication service system of claim 1, wherein the content of the specification template comprises a specification type and a media attribute;
the protocol types support IEC101/102/103/104/61850, MODBUS, GB/T27930-2011, DL-T645-2007 and CDT/DISA communication protocols;
the media properties support serial port, CAN port and ethernet/GPRS.
3. The electrochemical energy storage embedded communication service system of claim 1, wherein the device template attributes include device description, device type, and specification template.
4. The electrochemical energy storage embedded communication service system of claim 1, wherein the flow of the configuration module online registration service module comprises:
forming a configuration file according to a protocol template and an equipment template selected by a user in a service module;
executing a registration mechanism according to the configuration file in an API calling mode, and starting a system registration event; and detecting whether a multi-user registration condition exists, and if the multi-user registration condition does not exist, calling a protocol configuration strategy module to generate a configuration strategy so as to finish registration of the service module.
5. The electrochemical energy storage embedded communication service system of claim 1, wherein the flow of the configuration module to log off the service module online comprises:
the configuration module calls an initialization module to check whether the service module to be logged off is running or not; if the service module is running, calling a configuration strategy module to cancel the corresponding configuration strategy;
after executing the logout instruction, the configuration policy module calls a logout API of the initialization module to disconnect the existing connection and release the occupied resources of the cache.
6. The electrochemical energy storage embedded communication service system of claim 1, further comprising:
and the message filtering module is used for filtering out the message content which is not needed by the user according to the filtering strategy conditions configured by the user, and does not convert the filtered message content in the message protocol conversion process.
7. The electrochemical energy storage embedded communication service system of claim 1, further comprising:
the serialization module is used for converting the message into a format convenient for transmission; the supported serialization formats include: binary format, byte array, JSON string and XML string; and
and a deserialization module: for recovering the serialized data into a message object.
8. The electrochemical energy storage embedded communication service system of claim 1, further comprising:
the log module is used for recording the running state of the system and calling record information among APIs; and compressing and deleting the generated log according to the configuration strategy.
9. The electrochemical energy storage embedded communication service system of claim 1, wherein the system supports multiple instances running simultaneously, each instance performing a specific communication type of process.
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