CN117312762A - Management system of energy storage system - Google Patents

Management system of energy storage system Download PDF

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CN117312762A
CN117312762A CN202311604885.1A CN202311604885A CN117312762A CN 117312762 A CN117312762 A CN 117312762A CN 202311604885 A CN202311604885 A CN 202311604885A CN 117312762 A CN117312762 A CN 117312762A
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energy storage
power
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侯若飞
成勇
范晓云
夏伟
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Contemporary Amperex Technology Co Ltd
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Abstract

The application discloses a management system of energy storage system includes: the system comprises a display module, an online monitoring module and a fault management module, wherein the online monitoring module comprises an acquisition sub-module and an analysis sub-module; the acquisition sub-module is used for acquiring data of the energy storage system at intervals of preset data acquisition to obtain multiple groups of data of the energy storage system running in a first time period; the analysis submodule is used for carrying out statistical analysis on a plurality of groups of data to obtain an analysis result; the fault management module is used for sending out alarm information under the condition that the energy storage system is determined to be abnormal according to the analysis result; and the display module is used for displaying at least one of analysis results and alarm information. The user can carry out data acquisition to the energy storage system through the online detection module, and analyze the data that gathers, and the fault management module is in the circumstances that the energy storage system exists the abnormality according to analysis result determination, sends alarm information to suggestion maintainer in time looks over, improves the maintenance efficiency to the energy storage system.

Description

Management system of energy storage system
Technical Field
The present application relates to the field of energy storage technologies, and in particular, to a management system for an energy storage system.
Background
In recent years, the photovoltaic power generation technology is rapidly advanced, the installed capacity is rapidly improved, photovoltaic systems with large sizes are built around the world, including distributed household photovoltaic systems and large-scale photovoltaic systems of enterprises, but the photovoltaic power generation has the defects of intermittence, uncontrollability and the like, and the photovoltaic power generation is directly connected into a power grid before an energy storage component is not arranged, so that great impact is brought, and the stable operation of the power grid is influenced. After the energy storage component is added into the energy storage system, the photovoltaic power generation can be smoothly and stably output to the power grid, and the stability of the power grid can not be affected when the power grid is accessed in a large scale.
At present, the operation process of the energy storage system lacks management and monitoring, and when the energy storage system is abnormal, the abnormal operation of the energy storage system cannot be found in time, so that the normal operation of the energy storage system is affected.
Disclosure of Invention
The application provides a management system of an energy storage system, which is used for monitoring the operation of the energy storage system, finding out the abnormality existing in the operation process of the energy storage system in time, improving the maintenance efficiency of the energy storage system and reducing the fault time of the energy storage system.
The application provides a management system of an energy storage system, comprising: the system comprises a display module, an online monitoring module and a fault management module, wherein the online monitoring module comprises an acquisition sub-module and an analysis sub-module;
The acquisition submodule is used for acquiring data of the energy storage system at intervals of preset data acquisition to obtain multiple groups of data of the energy storage system running in a first time period;
the analysis submodule is used for carrying out statistical analysis on the plurality of groups of data to obtain an analysis result;
the fault management module is used for sending out alarm information under the condition that the energy storage system is determined to be abnormal according to the analysis result, wherein the alarm information comprises at least one of a text prompt and a sound prompt;
the display module is used for displaying at least one of the analysis result and the alarm information.
In this embodiment, the management system of the energy storage system includes a display module, an online monitoring module and a fault management module, where a user may collect data of the energy storage system through the online detection module and analyze the collected data to obtain an analysis result, and the fault management module sends out alarm information when determining that the energy storage system is abnormal according to the analysis result, so as to prompt a maintainer to check in time, thereby improving maintenance efficiency of the energy storage system.
In an embodiment of the present application, the energy storage system includes a power generation assembly and an inverter, where the inverter is configured to perform ac-dc conversion on a current generated by the power generation assembly;
Each set of data in the plurality of sets of data comprises first data and second data, the first data comprises a first current and a first voltage output by the power generation assembly, and the second data comprises a second current and a second voltage output by the inverter;
the analysis sub-module is used for executing at least one of the following:
according to the first current and the first voltage in each group of data, calculating to obtain the first power of the power generation assembly in the corresponding data acquisition interval;
according to the first current and the first voltage in each group of data, calculating to obtain the generated energy of the power generation assembly in the corresponding data acquisition interval;
calculating at least one of hourly power generation capacity, daily power generation capacity, monthly power generation capacity and annual power generation capacity of the power generation assembly according to the first power in the plurality of groups of data;
according to the second current and the second voltage in each group of data, calculating to obtain the second power of the inverter in the corresponding data acquisition interval;
the analysis result comprises data obtained by calculation of the analysis submodule.
In this embodiment, the data obtained by calculation by the analysis sub-module may be displayed by the display module, so that a user may check the data conveniently, and monitor the operation of the energy storage system.
In an embodiment of the present application, the management system of the energy storage system further includes an energy efficiency analysis module;
the energy efficiency analysis module is used for acquiring the first power and the second power in each group of data from the analysis sub-module and executing at least one of the following:
according to the first power and the second power in each group of data, calculating to obtain the conversion efficiency of the inverter in the corresponding data acquisition interval;
calculating at least one of conversion efficiency per hour, conversion efficiency per day, conversion efficiency per month and conversion efficiency per year of the inverter according to the first power and the second power in the plurality of groups of data;
the display module is also used for displaying the data calculated by the energy efficiency analysis module.
In this embodiment, the energy efficiency analysis module may calculate the conversion efficiency of the inverter to obtain the conversion efficiency of the inverter in the corresponding data acquisition interval, where at least one of the conversion efficiency of the inverter per hour, the conversion efficiency of the inverter per day, the conversion efficiency of the inverter per month and the conversion efficiency of the inverter per year is convenient for a user to monitor the conversion efficiency of the inverter, and monitor the working state of the inverter in real time, so that monitoring personnel can discover anomalies in time.
In an embodiment of the present application, the energy storage system includes an energy storage unit and an energy storage converter, where the energy storage converter is configured to perform ac-dc conversion on a charging current and a discharging current of the energy storage unit;
each set of data in the plurality of sets of data comprises third data and fourth data, the third data comprises third current and third voltage output by the energy storage unit during discharging, and fourth current and fourth voltage output by the energy storage converter, the fourth data comprises fifth current and fifth voltage input to the energy storage converter during charging, and sixth current and sixth voltage input to the energy storage unit;
the analysis sub-module is used for executing at least one of the following:
according to the third current and the third voltage in each group of data, calculating to obtain the third power of the energy storage unit in the corresponding data acquisition interval;
according to the fourth current and the fourth voltage in each group of data, calculating to obtain the fourth power of the energy storage converter in the corresponding data acquisition interval;
calculating to obtain the output electric quantity of the energy storage unit in the corresponding data acquisition interval according to the third current and the third voltage in each group of data;
Calculating to obtain the output electric quantity of the energy storage converter in the corresponding data acquisition interval according to the fourth current and the fourth voltage in each group of data;
according to the sixth current and the sixth voltage in each group of data, calculating to obtain the sixth power of the energy storage unit in the corresponding data acquisition interval;
according to the fifth current and the fifth voltage in each group of data, calculating to obtain the fifth power of the energy storage converter in the corresponding data acquisition interval;
according to the sixth current and the sixth voltage in each group of data, calculating to obtain the input electric quantity of the energy storage unit in the corresponding data acquisition interval;
according to the fifth current and the fifth voltage in each group of data, calculating to obtain the input electric quantity of the energy storage converter in the corresponding data acquisition interval;
according to the third power and the sixth power in each group of data, calculating to obtain the storage electric quantity of the energy storage unit in a data acquisition interval corresponding to the third power;
and calculating at least one of the hour storage electric quantity, the day storage electric quantity, the month storage electric quantity and the year storage electric quantity of the energy storage unit according to the input electric quantity and the output electric quantity of the energy storage unit in the plurality of groups of data.
In this embodiment, the analysis submodule calculates at least one of output power, input power, hour storage power, day storage power, month storage power and year storage power of the energy storage unit in each data acquisition interval of the energy storage unit, and displays the calculated at least one of the output power, the input power, the hour storage power, the day storage power, the month storage power and the year storage power through the display module, so that a user can check the calculated at least one of the output power, the input power, the hour storage power, the day storage power, the month storage power and the year storage power of the energy storage unit conveniently, and monitors the operation of the energy storage unit.
In an embodiment of the present application, the management system of the energy storage system further includes an energy efficiency analysis module;
the energy efficiency analysis module is used for acquiring fifth power and sixth power in each group of data from the analysis sub-module and executing at least one of the following:
according to the third power and the fourth power in each group of data, calculating to obtain the first conversion efficiency of the energy storage converter in the corresponding data acquisition interval;
according to the fifth power and the sixth power in each group of data, calculating to obtain the second conversion efficiency of the energy storage converter in the corresponding data acquisition interval;
the display module is also used for displaying the data calculated by the energy efficiency analysis module.
In this embodiment, the energy efficiency analysis module may calculate the conversion efficiency of the energy storage converter in the charging or discharging process, so as to obtain the conversion efficiency of the energy storage converter in the corresponding data acquisition interval, so that the user can monitor the energy storage converter conveniently, and the monitoring personnel can find abnormality in time through the working state of the real-time energy storage converter.
In an embodiment of the present application, each set of data further includes a temperature of a battery cell in the energy storage unit;
the fault management module is used for generating prompt information under the condition that the temperature of the battery cell is greater than a temperature threshold value, wherein the prompt information comprises the temperature of the battery cell and the acquisition time of the temperature of the battery cell;
the display module is also used for highlighting prompt information.
In this embodiment, when the temperature is greater than the temperature threshold, a prompt message is generated, and a highlighting manner is adopted to remind the user that the temperature of the battery cell is abnormal, so as to check and maintain in time.
In an embodiment of the present application, the fault management module is further configured to:
counting the times that the temperature of the battery cell is greater than a temperature threshold value in the first time period;
if the times are greater than or equal to a times threshold, generating first alarm information;
if the number of times is smaller than the number of times threshold, generating second alarm information, wherein the alarm level of the second alarm information is larger than that of the first alarm information;
the first alarm information or the second alarm information is sent to a preset object;
the display module is further configured to display the first alarm information or the second alarm information, where the first alarm information or the second alarm information includes: the times and the acquisition time of the temperature of each battery cell which is larger than the temperature threshold in the first time period.
In this embodiment, the number of times that the temperature of the battery cell is greater than the temperature threshold in the first time period is counted, and alarm information of different alarm levels is generated according to the number of times and the number of times threshold and sent to the corresponding preset object, so that the preset object can monitor the temperature of the battery cell continuously or check the battery cell on site, and remove faults in time.
In an embodiment of the present application, the energy storage system includes a power grid component, where the power grid component is used to input an externally provided current to the energy storage system, or output a current in the energy storage system to the outside;
each set of data in the plurality of sets of data includes fifth data including a seventh current and a seventh voltage output by the grid assembly, and an eighth current and an eighth voltage input to the grid assembly;
the analysis sub-module is further configured to perform at least one of:
according to the seventh current and the seventh voltage in each group of data, calculating to obtain seventh power of the power grid component in a corresponding data acquisition interval;
calculating the output electric quantity in a data acquisition interval corresponding to the power grid component according to the seventh power in each group of data;
According to the eighth current and the eighth voltage in each group of data, calculating to obtain eighth power of the power grid component in a corresponding data acquisition interval;
according to the eighth power in each group of data, calculating and obtaining the input electric quantity of the power grid component in the corresponding data acquisition interval;
according to the seventh power in the multiple groups of data, at least one of the hour output electric quantity, the day output electric quantity, the month output electric quantity and the year output electric quantity of the power grid component is calculated;
and calculating at least one of the hour input electric quantity, the day input electric quantity, the month input electric quantity and the year input electric quantity of the power grid component in a data acquisition interval corresponding to the eighth power according to the eighth power in the plurality of groups of data.
In this embodiment, the data obtained by calculation of the analysis submodule can be displayed through the display module, so that a user can check the data conveniently, and the operation of the power grid assembly is monitored.
In an embodiment of the present application, the energy storage system includes a power supply interface, where the power supply interface is connected to a load, and the energy storage system supplies power to the load through the power supply interface;
each set of data further comprises a ninth current and a ninth voltage output by the power supply interface;
The analysis submodule is further used for counting at least one of the following:
according to the ninth current and the ninth voltage in each group of data, calculating to obtain the ninth power of the power supply interface in the corresponding data acquisition interval;
according to the ninth power in each group of data, calculating to obtain the output electric quantity of the power supply interface in the corresponding data acquisition interval;
and according to the ninth power in the multiple groups of data, calculating to obtain at least one of the hour output electric quantity, the day output electric quantity, the month output electric quantity and the year output electric quantity of the power supply interface.
In this embodiment, the power supply condition of the power supply interface can be calculated through the analysis sub-module, and the data obtained through calculation of the analysis sub-module can be displayed through the display module, so that a user can check conveniently, and the operation of the power supply interface is monitored.
In an embodiment of the present application, the management system further includes a report statistics module;
and the report statistics module is used for counting the target data in the data obtained by calculation of the analysis submodule according to the selection input of the user under the condition that the user triggers the report statistics function to form a report, wherein the target data is the data selected based on the selection input.
In this embodiment, the user may select, according to actual needs, target data in a second time period from the multiple data to perform statistics, so as to form a report, where the report records the target data in the second time period, so that the user can analyze and view the target data according to the report, and assist the user in evaluating the operation condition of the energy storage system.
The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a management system of an energy storage system according to an embodiment of the present application;
FIG. 2 is another schematic structural diagram of a management system of an energy storage system according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of data collection of an energy storage system according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.
Fig. 1 is a schematic block diagram of a management system of an energy storage system according to an embodiment of the present application, as shown in fig. 1, including: the system comprises an online monitoring module 101, a fault management module 102 and a display module 103, wherein the online monitoring module 101 comprises an acquisition submodule 1011 and an analysis submodule 1012;
the collecting submodule 1011 is used for collecting data of the energy storage system at intervals of preset data collection to obtain a plurality of groups of data of the energy storage system running in a first time period;
The analysis submodule 1012 is used for carrying out statistical analysis on the plurality of groups of data to obtain an analysis result;
the fault management module 102 is configured to send out alarm information when it is determined that an abnormality exists in the energy storage system according to the analysis result;
the display module 103 is configured to display at least one of the analysis result and alarm information.
In the foregoing, the preset data collection interval may be set according to the actual situation, generally, the shorter the data collection interval, the larger the data volume collected in unit time, the more accurate the data calculation and analysis, and after the data collection, the data is transmitted to the cloud database for storage through a specified protocol. The first period of time may be one hour, one day, one month, one year, etc., without limitation.
Each time the data is collected is called a group of data, the group of data can comprise data collected from each component of the energy storage system, for example, the energy storage system can comprise a power generation component (also called a photovoltaic component) and an energy storage unit, the power generation component is used for generating power, the energy storage unit is used for storing power, and when the data is collected, the current and the voltage generated by the power generation component can be collected so as to monitor the power generation efficiency of the power generation component; likewise, the current and voltage input to the energy storage unit may also be collected to analyze the amount of electricity stored by the energy storage unit. The statistical analysis may be to obtain information of current, voltage, power, etc. of output or input of each component according to multiple sets of data, and display the information on the display module 103, so as to be convenient for viewing.
In this embodiment, the fault management module 102 is further configured to send out alarm information when it is determined that the energy storage system is abnormal according to the analysis result, for example, if the power generation amount of the power generation assembly in the analysis result drops fast, it indicates that the power generation assembly may have a fault, and in this case, send out alarm information for a maintainer to check in time. The alert information may be at least one of a text prompt and a voice prompt.
In the case where the alert information includes a text prompt, the text prompt may be displayed by the display module 103, and the text prompt may be highlighted, for example, in a red font, or a warning icon, which is not limited herein.
In the foregoing, the management system of the energy storage system includes the display module 103, the online monitoring module and the fault management module 102, where a user may collect data of the energy storage system through the online detection module and analyze the collected data to obtain an analysis result, and the fault management module 102 sends out alarm information when determining that the energy storage system is abnormal according to the analysis result, so as to prompt a maintainer to check in time and improve maintenance efficiency of the energy storage system.
In an embodiment of the present application, the energy storage system includes a power generation assembly and an inverter, where the inverter is configured to perform ac-dc conversion on a current generated by the power generation assembly;
Each set of data in the plurality of sets of data comprises first data and second data, the first data comprises a first current and a first voltage output by the power generation assembly, and the second data comprises a second current and a second voltage output by the inverter;
the analysis sub-module 1012 is configured to perform at least one of:
according to the first current and the first voltage in each group of data, calculating to obtain the first power of the power generation assembly in the corresponding data acquisition interval;
according to the first current and the first voltage in each group of data, calculating to obtain the generated energy of the power generation assembly in the corresponding data acquisition interval;
calculating at least one of hourly power generation capacity, daily power generation capacity, monthly power generation capacity and annual power generation capacity of the power generation assembly according to the first power in the plurality of groups of data;
according to the second current and the second voltage in each group of data, calculating to obtain the second power of the inverter in the corresponding data acquisition interval;
wherein the analysis result includes data calculated by the analysis sub-module 1012.
In the above, the analysis submodule 1012 may calculate the power and the power generation amount of the power generation assembly in each data acquisition interval, may calculate at least one of the power generation amount of the power generation assembly per hour, the power generation amount of the day, the power generation amount of the month and the power generation amount of the year in the first period, and similarly, the analysis submodule 1012 may calculate the power of the inverter in each data acquisition interval. The inverter may also be a photovoltaic inverter.
The data obtained by calculation of the analysis submodule 1012 can be displayed through the display module 103, so that the data is convenient for a user to check, and the operation of the energy storage system is monitored. Further, the user can also select a historical period for inquiry through manual input, so that the operation data of the power generation assembly in the historical period can be obtained.
In yet another embodiment of the present application, as shown in fig. 2, the management system of the energy storage system further includes an energy efficiency analysis module;
the energy efficiency analysis module is configured to obtain the first power and the second power in each set of data from the analysis sub-module 1012, and perform at least one of the following:
according to the first power and the second power in each group of data, calculating to obtain the conversion efficiency of the inverter in the corresponding data acquisition interval;
at least one of an hourly conversion efficiency, a daily conversion efficiency, a monthly conversion efficiency, and a yearly conversion efficiency of the inverter is calculated from the first power and the second power in the plurality of sets of data.
The display module 103 is further configured to display the data obtained by calculation of the energy efficiency analysis module.
In the above, the power generated by the power generation assembly is ac power, and the ac power is converted into dc power by the inverter, which has a loss in the conversion process.
The energy efficiency analysis module 104 is configured to analyze the conversion efficiency of the inverter, for example, the first power and the second power in each set of data are obtained from the analysis sub-module 1012, and may calculate the conversion efficiency of the inverter within each data collection interval by using the first power and the second power in each set of data, and may also calculate at least one of the conversion efficiency of the inverter per hour, the conversion efficiency per day, the conversion efficiency per month, and the conversion efficiency per year.
The energy efficiency analysis module 104 may also obtain a conversion efficiency curve according to the conversion efficiency in each data collection interval, where the abscissa of the curve is the data collection time and the ordinate is the conversion efficiency, so that a user can monitor the working condition of the inverter by checking the conversion efficiency curve, for example, if a certain conversion efficiency is suddenly changed and is smaller than the conversion efficiency of other adjacent data collection times, it is indicated that the inverter may have abnormal operation, and maintenance personnel can perform heavy analysis on the data collected at the data collection time to find the cause of the abnormality.
In the foregoing, the energy efficiency analysis module 104 may calculate the conversion efficiency of the inverter to obtain the conversion efficiency of the inverter in the corresponding data acquisition interval, where at least one of the conversion efficiency of the inverter per hour, the conversion efficiency of the inverter per day, the conversion efficiency of the inverter per month and the conversion efficiency of the inverter per year is convenient for a user to monitor the conversion efficiency of the inverter, and monitor the working state of the inverter in real time, so that a monitoring person can discover an abnormality in time.
In yet another embodiment of the present application, the energy storage system includes an energy storage unit and an energy storage converter, where the energy storage converter is configured to perform ac-dc conversion on a charging current and a discharging current of the energy storage unit;
each set of data in the plurality of sets of data comprises third data and fourth data, the third data comprises third current and third voltage output by the energy storage unit during discharging, and fourth current and fourth voltage output by the energy storage converter, the fourth data comprises fifth current and fifth voltage input to the energy storage converter during charging, and sixth current and sixth voltage input to the energy storage unit;
the analysis sub-module 1012 is configured to perform at least one of:
according to the third current and the third voltage in each group of data, calculating to obtain the third power, namely the output power, of the energy storage unit in the corresponding data acquisition interval;
according to the fourth current and the fourth voltage in each group of data, calculating to obtain the fourth power, namely the output power, of the energy storage converter in the corresponding data acquisition interval;
calculating to obtain the output electric quantity of the energy storage unit in the corresponding data acquisition interval according to the third current and the third voltage in each group of data;
Calculating to obtain the output electric quantity of the energy storage converter in the corresponding data acquisition interval according to the fourth current and the fourth voltage in each group of data;
according to the sixth current and the sixth voltage in each group of data, calculating to obtain the sixth power, namely the input power, of the energy storage unit in the corresponding data acquisition interval;
according to the fifth current and the fifth voltage in each group of data, calculating to obtain the fifth power, namely the input power, of the energy storage converter in the corresponding data acquisition interval;
according to the sixth current and the sixth voltage in each group of data, calculating to obtain the input electric quantity of the energy storage unit in the corresponding data acquisition interval;
according to the fifth current and the fifth voltage in each group of data, calculating to obtain the input electric quantity of the energy storage converter in the corresponding data acquisition interval;
according to the third power and the sixth power in each group of data, calculating to obtain the stored electric quantity of the energy storage unit in a data acquisition interval corresponding to the third power, namely, obtaining the difference between the electric quantity input into the energy storage unit and the electric quantity output from the energy storage unit, and obtaining the stored electric quantity of the energy storage unit;
and calculating at least one of the hour storage electric quantity, the day storage electric quantity, the month storage electric quantity and the year storage electric quantity of the energy storage unit according to the input electric quantity and the output electric quantity of the energy storage unit in the plurality of groups of data.
And calculating at least one of the hour storage electric quantity, the day storage electric quantity, the month storage electric quantity and the year storage electric quantity of the energy storage unit according to the third power and the sixth power in the plurality of groups of data.
The energy storage unit is used for storing electricity, and the electricity generated by the power generation assembly can be stored in the energy storage unit if the electricity is not used by the load. The energy storage converter (Power Conversion System, PCS) can control the charging and discharging processes of the energy storage unit to perform alternating current-direct current conversion, and can directly supply power to an alternating current load under the condition of no power grid. The PCS can acquire the state information of the battery pack in the energy storage unit, can realize the protective charge and discharge of the battery, and ensures the operation safety of the battery.
In this embodiment, the analysis sub-module 1012 calculates at least one of the output power, the input power, the hour storage power, the day storage power, the month storage power and the year storage power of the energy storage unit in each data acquisition interval of the energy storage unit, and displays the calculated data through the display module 103, so that the data acquisition interval is convenient for a user to check, and the operation of the energy storage unit is monitored.
In the foregoing, the analysis submodule 1012 is further configured to: and determining whether the energy storage unit can be charged or discharged according to the current stored electric quantity of the energy storage unit. Charging the energy storage unit means buying electric quantity from the outside of the energy storage system, and storing the purchased electric quantity in the energy storage unit so as to ensure that the energy storage system supplies power for a load; discharging the energy storage unit refers to selling the electric quantity in the energy storage unit.
For example, according to the current stored electricity of the energy storage unit, whether the energy storage unit can be charged or discharged is determined, which specifically may be: under the condition that the current stored electric quantity of the energy storage unit is larger than a first preset electric quantity threshold value, if the electric price is larger than the preset electric price threshold value, a discharging prompt is output through the display module 103 so as to prompt that part of the electric quantity can be sold currently;
when the current stored electric quantity of the energy storage unit is smaller than a second preset electric quantity threshold value, a charging prompt is output through the display module 103 to prompt that the current electric quantity is insufficient in storage and the electric quantity needs to be purchased from the outside of the energy storage system;
when the current stored electric quantity of the energy storage unit is larger than the second preset electric quantity and smaller than the first preset electric quantity threshold, if the electricity price is larger than the preset electricity price threshold, a discharge prompt is output through the display module 103 so as to prompt that part of the electric quantity can be sold currently;
under the condition that the current stored electric quantity of the energy storage unit is larger than the second preset electric quantity and smaller than the first preset electric quantity threshold, if the electricity price is smaller than the preset electricity price threshold, a charging prompt is output through the display module 103 so as to prompt that the current electric quantity is not stored enough and the electric quantity needs to be purchased from the outside of the energy storage system.
In yet another embodiment of the present application, the management system of the energy storage system further includes an energy efficiency analysis module 104;
the energy efficiency analysis module 104 is configured to obtain the third power, the fourth power, the fifth power, and the sixth power in each set of data from the analysis sub-module 1012, and perform at least one of the following:
according to the third power and the fourth power in each group of data, calculating to obtain the first conversion efficiency of the energy storage converter in the corresponding data acquisition interval;
according to the fifth power and the sixth power in each group of data, calculating to obtain the second conversion efficiency of the energy storage converter in the corresponding data acquisition interval;
the display module 103 is further configured to display the data calculated by the energy efficiency analysis module 104.
In the above, the energy storage converter has loss in the process of converting ac to dc. The energy efficiency analysis module 104 is configured to analyze the conversion efficiency of the energy storage converter, for example, the third power and the fourth power in each set of data are obtained from the analysis sub-module 1012, and may calculate the first conversion efficiency of the energy storage converter in each data collection interval through the third power and the fourth power in each set of data, where the first conversion efficiency is the conversion efficiency of the energy storage unit when the energy storage unit discharges, and may also calculate at least one of the first conversion efficiency of the energy storage converter per hour, the first conversion efficiency per day, the first conversion efficiency per month, and the first conversion efficiency per year.
The energy efficiency analysis module 104 may also obtain a conversion efficiency curve according to the first conversion efficiency in each data collection interval, where the abscissa of the curve is the data collection time, and the ordinate is the first conversion efficiency, so that a user can monitor the working condition of the energy storage converter by checking the conversion efficiency curve, for example, if a certain conversion efficiency is suddenly changed, the conversion efficiency is smaller than the conversion efficiency of other adjacent data collection times, so as to indicate that the energy storage converter may have abnormal operation, and maintenance personnel can perform heavy analysis on the data collected at the data collection time, so as to find the cause of the abnormality.
Similarly, the energy efficiency analysis module 104 may also calculate a second conversion efficiency of the energy storage converter in each data collection interval through the fifth power and the sixth power in each data collection interval, where the second conversion efficiency is a conversion efficiency of the energy storage unit when charging, and may also calculate at least one of a second conversion efficiency of the energy storage converter per hour, a second conversion efficiency per day, a second conversion efficiency per month, and a second conversion efficiency per year.
The energy efficiency analysis module 104 may also obtain a conversion efficiency curve according to the second conversion efficiency in each data collection interval, where the abscissa of the curve is the data collection time and the ordinate is the second conversion efficiency, so that a user can monitor the working condition of the energy storage converter by checking the conversion efficiency curve, for example, if a certain conversion efficiency is suddenly changed, the conversion efficiency is smaller than the conversion efficiency of other adjacent data collection times, so as to indicate that the energy storage converter may have abnormal operation, and maintenance personnel can perform heavy analysis on the data collected at the data collection time, so as to find the cause of the abnormality.
In the foregoing, the energy efficiency analysis module 104 may calculate the conversion efficiency of the energy storage converter in the charging or discharging process, so as to obtain the conversion efficiency of the energy storage converter in the corresponding data acquisition interval, so that the user can monitor the energy storage converter conveniently, and the monitoring personnel can find abnormality in time through the working state of the real-time energy storage converter.
In yet another embodiment of the present application, each set of data further includes a temperature of a cell in the energy storage unit;
the fault management module 102 is configured to generate a prompt message when the temperature of the electrical core is greater than a temperature threshold, where the prompt message includes the temperature of the electrical core and a collection time of the temperature of the electrical core;
the display module 103 is further configured to highlight the prompt message.
In the above description, the temperature threshold may be set according to practical situations, and is not limited herein. The fault management module 102 can automatically monitor the temperature of the battery cell, generate prompt information under the condition that the temperature is greater than a temperature threshold value, and adopt a highlighting mode to remind a user that the temperature of the battery cell is abnormal, and please check and maintain in time. Highlighting may be, but is not limited to, bolding, marking, or marking the text of the message.
In yet another embodiment of the present application, the fault management module 102 is further configured to:
counting the times that the temperature of the battery cell is greater than a temperature threshold value in the first time period;
if the times are greater than or equal to a times threshold, generating first alarm information;
if the number of times is smaller than the number of times threshold, generating second alarm information, wherein the alarm level of the second alarm information is larger than that of the first alarm information;
the first alarm information or the second alarm information is sent to a preset object;
the display module 103 is further configured to display the first alarm information or the second alarm information, where the first alarm information or the second alarm information includes: the times and the acquisition time of the temperature of each battery cell which is larger than the temperature threshold in the first time period.
In the foregoing, the preset object may be a monitoring person or a maintenance person, and may be set according to an actual situation. The threshold number of times may also be set according to the actual situation, for example, 3 times. If the counted number of times is greater than 3, the situation that the temperature of the battery cell is too high is not an occasional event, and the situation that the energy storage unit is abnormal possibly needs to be checked by maintenance personnel to check the fault reason is indicated, and the first alarm information is generated and sent to the maintenance personnel, so that the maintenance personnel can check the energy storage unit in time after receiving the first alarm information. If the counted times are less than 3 times, the cell temperature is possibly an accidental event, but cannot be ignored, second alarm information is generated and sent to monitoring staff, and the monitoring staff continuously monitors the cell temperature.
In the above, the number of times that the temperature of the battery cell is greater than the temperature threshold in the first time period is counted, and the alarm information of different alarm levels is generated according to the number of times and the number of times threshold and sent to the corresponding preset object, so that the preset object can monitor the temperature of the battery cell continuously or check the battery cell on site to eliminate faults.
In yet another embodiment of the present application, the energy storage system comprises a power grid component for inputting an externally provided current to the energy storage system or outputting a current in the energy storage system to the outside;
each set of data in the plurality of sets of data includes fifth data including a seventh current and a seventh voltage output by the grid assembly, and an eighth current and an eighth voltage input to the grid assembly;
the analysis submodule 1012 is further configured to perform at least one of:
according to the seventh current and the seventh voltage in each group of data, calculating to obtain seventh power of the power grid component in a corresponding data acquisition interval;
calculating the output electric quantity in a data acquisition interval corresponding to the power grid component according to the seventh power in each group of data;
According to the eighth current and the eighth voltage in each group of data, calculating to obtain eighth power of the power grid component in a corresponding data acquisition interval;
according to the eighth power in each group of data, calculating and obtaining the input electric quantity of the power grid component in the corresponding data acquisition interval;
according to the seventh power in the multiple groups of data, at least one of the hour output electric quantity, the day output electric quantity, the month output electric quantity and the year output electric quantity of the power grid component is calculated;
and calculating at least one of the hour input electric quantity, the day input electric quantity, the month input electric quantity and the year input electric quantity of the power grid component in a data acquisition interval corresponding to the eighth power according to the eighth power in the plurality of groups of data.
In the foregoing, the power grid component is configured to input an externally provided current to the energy storage system, where the energy storage system may output the current to a load or store the current in an energy storage unit; the current in the energy storage unit can also be output to the outside through the power grid assembly.
The data obtained by calculation of the analysis submodule 1012 can be displayed through the display module 103, so that the data is convenient for a user to check, and the operation of the power grid assembly is monitored. Further, the user can also select a historical period for inquiry through manual input, so that the operation data of the power grid component in the historical period can be obtained.
In yet another embodiment of the present application, the energy storage system includes a power supply interface, the power supply interface is connected to a load, and the energy storage system supplies power to the load through the power supply interface;
each set of data further comprises a ninth current and a ninth voltage output by the power supply interface;
the analysis submodule 1012 is further configured to count at least one of:
according to the ninth current and the ninth voltage in each group of data, calculating to obtain the ninth power of the power supply interface in the corresponding data acquisition interval;
according to the ninth power in each group of data, calculating to obtain the output electric quantity of the power supply interface in the corresponding data acquisition interval;
and according to the ninth power in the multiple groups of data, calculating to obtain at least one of the hour output electric quantity, the day output electric quantity, the month output electric quantity and the year output electric quantity of the power supply interface.
In the above, the analysis submodule 1012 can calculate the power supply condition of the power supply interface, and the analysis submodule 1012 can calculate the data and display the data through the display module 103, so that the user can check the data conveniently, and the operation of the power supply interface is monitored. Further, the user can also select a historical period for inquiry through manual input, so as to obtain the operation data of the power supply interface in the historical period.
In yet another embodiment of the present application, as shown in fig. 2, the management system further includes a report statistics module 105;
the report statistics module 105 is configured to, when the user triggers the report statistics function, perform statistics on target data in the data obtained by calculation by the analysis submodule 1012 according to the selection input of the user, so as to form a report, where the target data is data selected based on the selection input. The report may include one or more data of an energy storage system daily power generation amount, an energy storage system monthly power generation amount, an energy storage system annual power generation amount, a load daily power generation amount, a load monthly power consumption amount, a load annual power consumption amount, a grid component daily power consumption amount, a grid component monthly power consumption amount, a grid component annual power consumption amount, an energy storage component charge amount, and an energy storage component charge amount.
The analysis sub-module 1012 performs statistics on various data, specifically, referring to the description of the embodiments, a user may select target data in a second time period from the various data according to actual needs to perform statistics, so as to form a report, and the report records the target data in the second time period, so that the user can analyze and view the target data according to the report conveniently, and assist the user in evaluating the operation condition of the energy storage system.
In addition, the management system further comprises a user information management module, wherein the user information management module is used for: inputting user information of a user; and setting system permission for the user.
The following illustrates a management system of an energy storage system provided in the present application.
As shown in fig. 3, the data acquisition submodule 1011 of the management system of the energy storage system acquires data of the energy storage system during operation from the cloud database, and specifically, may acquire required data from the cloud database through the data acquisition submodule 1011.
The energy storage system can be a photovoltaic energy storage system and mainly comprises a photovoltaic module, a photovoltaic inverter, an energy storage unit, an energy storage converter, a power grid module (data of the power grid module are collected through a power grid side ammeter), a load interface (electricity consumption data of a load are collected through a load side ammeter), and the like, wherein the energy storage system is used for supplying power to the load, data of each component can be collected through a sensor or an ammeter, the collection interval time can be determined according to actual conditions, the general collection density is in a second level, the shorter the interval time is, the larger the data volume is, the more accurate data calculation and analysis can be realized, the data are transmitted to a cloud platform through a specified protocol after the data collection, and the data are stored in a cloud database.
The current generated by the power generation of the photovoltaic module is subjected to alternating current-direct current conversion through the inverter, and data such as current, voltage and power input into the inverter by the photovoltaic module can be collected. And collecting data such as current, voltage, power and the like flowing out of the inverter.
Generally, an ammeter is installed at a load side, and data such as power, real-time electric quantity and the like of a load are collected through the ammeter at the load side; and an ammeter is also arranged at the power grid side, and data such as power, real-time electric quantity and the like at the power grid side are collected through the ammeter at the power grid side.
The energy storage unit is charged and discharged and needs to be subjected to AC-DC conversion through an energy storage converter, the energy storage unit needs to collect current, voltage, power and other data flowing into or flowing out of the energy storage unit, and in order to monitor the running state of the energy storage unit, the energy storage unit also needs to collect current, voltage, temperature and other data of each battery in the energy storage unit. The energy storage converter needs to collect data such as current, voltage, power and the like flowing into or out of the converter.
After a large amount of collected data are transmitted to the cloud platform, a data collection submodule 1011 of the management system acquires the data collected each time from the cloud database and transmits the data to an analysis submodule 1012 for calculation in real time, and the electric quantity of each data collection interval time period can be calculated through the power data;
The analysis submodule 1012 also has a timing calculation task, and calculates the hour generating capacity, the daily generating capacity, the month generating capacity, the annual generating capacity and the like of the photovoltaic module according to the electric quantity of the data acquisition interval period calculated in real time; according to the data collected by the load side ammeter, the power consumption of the load in hours, the power consumption of the daily power consumption, the power consumption of the month, the power consumption of the year and the like can be calculated; according to the electric meter at the power grid side, the daily Internet surfing electricity quantity, the annual Internet surfing electricity quantity and the like of the energy storage system can be calculated; the daily charge amount, the daily discharge amount, the accumulated charge amount, the accumulated discharge amount and the like of the energy storage component can be calculated according to the acquired data of the energy storage component.
The data analysis service is mainly used for analyzing the collected data and the data generated by the data processing service, and if the data is abnormal, corresponding alarm information is immediately generated, and if the temperature of a certain battery cell is too high, high-temperature early warning of the battery cell is generated. The conversion efficiency of the inverter can be obtained by analyzing the data from the photovoltaic module to the photovoltaic inverter and the data from the photovoltaic inverter to the system, the conversion efficiency of the PCS, the discharge efficiency, the charging efficiency and the like of the energy storage can be obtained by analyzing the data of the energy storage unit and the PCS, and the SOH measurement and calculation of the energy storage system can be performed.
The management system mainly has three roles with different functional authorities aiming at different users, and the industry users are photovoltaic power station owners, system administrators and operation and maintenance engineers.
The industry user mainly has the functions of on-line monitoring, fault management, energy efficiency analysis, statistics report and the like. For example, the online monitoring module mainly monitors data such as daily output current, voltage, power curve, hour power generation capacity and the like of the photovoltaic module; monitoring data such as output and input voltage, current, power, electric quantity, battery cell temperature and the like of an energy storage unit; monitoring data such as the power consumption of the load per hour, the total daily power consumption, the power consumption and the like; the data of the power consumption per hour, the total power consumption per day, and the power consumption are monitored, and the data of the power consumption per hour, the total power consumption per day, and the power consumption are output from the power grid side.
The fault management module 102 analyzes the data in the analysis sub-module 1012, generates an alarm to remind a user and an operation and maintenance engineer of generating faults in the power station when an abnormality is found, and displays fault information and fault state tracking in the fault management module 102.
The energy efficiency analysis module 104 mainly monitors the electric quantity comparison between the photovoltaic module and the photovoltaic inverter, the comparison between the charging quantity and the discharging quantity of the energy storage unit and the electric quantity flowing into and out of the converter, and displays the working efficiency of the photovoltaic inverter and the energy storage converter, the charging efficiency and the discharging efficiency of energy storage, the Health Status (SOH) of the energy storage module and other data.
The report may include one or more data of an energy storage system daily power generation amount, an energy storage system monthly power generation amount, an energy storage system annual power generation amount, a load daily power generation amount, a load monthly power consumption amount, a load annual power consumption amount, a grid component daily power consumption amount, a grid component monthly power consumption amount, a grid component annual power consumption amount, an energy storage component charge amount, and an energy storage component charge amount.
The operation and maintenance engineer mainly has functions of historical data inquiry, equipment monitoring, fault handling and the like, and after the alarm information is generated, the operation and maintenance engineer can position fault reasons according to the real-time monitoring of the equipment and the historical data so as to solve faults and update fault states more quickly.
The system manager mainly has the functions of system management, equipment information management, user information management and the like, including the functions of system roles, authorities, system logs, menus and the like, equipment information management and maintenance, and user information management and maintenance.
The user can enter the management system through the webpage or the application program to check the real-time running state of each component of the energy storage system. The alarm information is generated immediately after the fault occurs, and a user can quickly acquire fault data through a webpage or an application program, so that the fault position is locked, operation and maintenance personnel are timely scheduled for maintenance, and the fault duration of the energy storage system is shortened.
It should be clear that the present application is not limited to the particular arrangements and processes described above and illustrated in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions, or change the order between steps, after appreciating the spirit of the present application.
The functional blocks shown in the above block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be different from the order in the embodiments, or several steps may be performed simultaneously.
Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus, devices, and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to being, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A system for managing an energy storage system, comprising: the system comprises a display module, an online monitoring module and a fault management module, wherein the online monitoring module comprises an acquisition sub-module and an analysis sub-module;
the acquisition submodule is used for acquiring data of the energy storage system at intervals of preset data acquisition to obtain multiple groups of data of the energy storage system running in a first time period;
The analysis submodule is used for carrying out statistical analysis on the plurality of groups of data to obtain an analysis result;
the fault management module is used for sending out alarm information under the condition that the energy storage system is determined to be abnormal according to the analysis result, wherein the alarm information comprises at least one of a text prompt and a sound prompt;
the display module is used for displaying at least one of the analysis result and the alarm information.
2. The energy storage system management system of claim 1, wherein the energy storage system comprises a power generation assembly and an inverter for ac-dc converting current generated by the power generation assembly;
each set of data in the plurality of sets of data comprises first data and second data, the first data comprises a first current and a first voltage output by the power generation assembly, and the second data comprises a second current and a second voltage output by the inverter;
the analysis sub-module is used for executing at least one of the following:
according to the first current and the first voltage in each group of data, calculating to obtain the first power of the power generation assembly in the corresponding data acquisition interval;
according to the first current and the first voltage in each group of data, calculating to obtain the generated energy of the power generation assembly in the corresponding data acquisition interval;
Calculating at least one of hourly power generation capacity, daily power generation capacity, monthly power generation capacity and annual power generation capacity of the power generation assembly according to the first power in the plurality of groups of data;
according to the second current and the second voltage in each group of data, calculating to obtain the second power of the inverter in the corresponding data acquisition interval;
the analysis result comprises data obtained by calculation of the analysis submodule.
3. The energy storage system management system of claim 2, further comprising an energy efficiency analysis module;
the energy efficiency analysis module is used for acquiring the first power and the second power in each group of data from the analysis sub-module and executing at least one of the following:
according to the first power and the second power in each group of data, calculating to obtain the conversion efficiency of the inverter in the corresponding data acquisition interval;
calculating at least one of conversion efficiency per hour, conversion efficiency per day, conversion efficiency per month and conversion efficiency per year of the inverter according to the first power and the second power in the plurality of groups of data;
the display module is also used for displaying the data calculated by the energy efficiency analysis module.
4. The energy storage system management system of claim 1, wherein the energy storage system comprises an energy storage unit and an energy storage converter, the energy storage converter is used for performing ac-dc conversion on charging current and discharging current of the energy storage unit;
each set of data in the plurality of sets of data comprises third data and fourth data, the third data comprises third current and third voltage output by the energy storage unit during discharging, and fourth current and fourth voltage output by the energy storage converter, the fourth data comprises fifth current and fifth voltage input to the energy storage converter during charging, and sixth current and sixth voltage input to the energy storage unit;
the analysis sub-module is used for executing at least one of the following:
according to the third current and the third voltage in each group of data, calculating to obtain the third power of the energy storage unit in the corresponding data acquisition interval;
according to the fourth current and the fourth voltage in each group of data, calculating to obtain the fourth power of the energy storage converter in the corresponding data acquisition interval;
calculating to obtain the output electric quantity of the energy storage unit in the corresponding data acquisition interval according to the third current and the third voltage in each group of data;
Calculating to obtain the output electric quantity of the energy storage converter in the corresponding data acquisition interval according to the fourth current and the fourth voltage in each group of data;
according to the sixth current and the sixth voltage in each group of data, calculating to obtain the sixth power of the energy storage unit in the corresponding data acquisition interval;
according to the fifth current and the fifth voltage in each group of data, calculating to obtain the fifth power of the energy storage converter in the corresponding data acquisition interval;
according to the sixth current and the sixth voltage in each group of data, calculating to obtain the input electric quantity of the energy storage unit in the corresponding data acquisition interval;
according to the fifth current and the fifth voltage in each group of data, calculating to obtain the input electric quantity of the energy storage converter in the corresponding data acquisition interval;
according to the third power and the sixth power in each group of data, calculating to obtain the storage electric quantity of the energy storage unit in a data acquisition interval corresponding to the third power;
and calculating at least one of the hour storage electric quantity, the day storage electric quantity, the month storage electric quantity and the year storage electric quantity of the energy storage unit according to the input electric quantity and the output electric quantity of the energy storage unit in the plurality of groups of data.
5. The energy storage system management system of claim 4, further comprising an energy efficiency analysis module;
the energy efficiency analysis module is used for acquiring fifth power and sixth power in each group of data from the analysis sub-module and executing at least one of the following:
according to the third power and the fourth power in each group of data, calculating to obtain the first conversion efficiency of the energy storage converter in the corresponding data acquisition interval;
according to the fifth power and the sixth power in each group of data, calculating to obtain the second conversion efficiency of the energy storage converter in the corresponding data acquisition interval;
the display module is also used for displaying the data calculated by the energy efficiency analysis module.
6. The energy storage system management system of claim 4, wherein each set of data further comprises a temperature of a cell in the energy storage unit;
the fault management module is used for generating prompt information under the condition that the temperature of the battery cell is greater than a temperature threshold value, wherein the prompt information comprises the temperature of the battery cell and the acquisition time of the temperature of the battery cell;
the display module is also used for highlighting prompt information.
7. The energy storage system management system of claim 6, wherein the fault management module is further configured to:
counting the times that the temperature of the battery cell is greater than a temperature threshold value in the first time period;
if the times are greater than or equal to a times threshold, generating first alarm information;
if the number of times is smaller than the number of times threshold, generating second alarm information, wherein the alarm level of the second alarm information is larger than that of the first alarm information;
the first alarm information or the second alarm information is sent to a preset object;
the display module is further configured to display the first alarm information or the second alarm information, where the first alarm information or the second alarm information includes: the times and the acquisition time of the temperature of each battery cell which is larger than the temperature threshold in the first time period.
8. The energy storage system management system of claim 1, wherein the energy storage system comprises a grid component for inputting externally provided current to the energy storage system or outputting current in the energy storage system to the outside;
Each set of data in the plurality of sets of data includes fifth data including a seventh current and a seventh voltage output by the grid assembly, and an eighth current and an eighth voltage input to the grid assembly;
the analysis sub-module is further configured to perform at least one of:
according to the seventh current and the seventh voltage in each group of data, calculating to obtain seventh power of the power grid component in a corresponding data acquisition interval;
calculating the output electric quantity in a data acquisition interval corresponding to the power grid component according to the seventh power in each group of data;
according to the eighth current and the eighth voltage in each group of data, calculating to obtain eighth power of the power grid component in a corresponding data acquisition interval;
according to the eighth power in each group of data, calculating and obtaining the input electric quantity of the power grid component in the corresponding data acquisition interval;
according to the seventh power in the multiple groups of data, at least one of the hour output electric quantity, the day output electric quantity, the month output electric quantity and the year output electric quantity of the power grid component is calculated;
and calculating at least one of the hour input electric quantity, the day input electric quantity, the month input electric quantity and the year input electric quantity of the power grid component in a data acquisition interval corresponding to the eighth power according to the eighth power in the plurality of groups of data.
9. The energy storage system management system of claim 8, wherein the energy storage system includes a power interface, the power interface connecting to a load, the energy storage system powering the load through the power interface;
each set of data further comprises a ninth current and a ninth voltage output by the power supply interface;
the analysis submodule is further used for counting at least one of the following:
according to the ninth current and the ninth voltage in each group of data, calculating to obtain the ninth power of the power supply interface in the corresponding data acquisition interval;
according to the ninth power in each group of data, calculating to obtain the output electric quantity of the power supply interface in the corresponding data acquisition interval;
and according to the ninth power in the multiple groups of data, calculating to obtain at least one of the hour output electric quantity, the day output electric quantity, the month output electric quantity and the year output electric quantity of the power supply interface.
10. The energy storage system management system of claim 1, further comprising a report statistics module;
and the report statistics module is used for counting the target data in the data obtained by calculation of the analysis submodule according to the selection input of the user under the condition that the user triggers the report statistics function to form a report, wherein the target data is the data selected based on the selection input.
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