CN112986851A - Energy storage discharge system test platform for power supply detection - Google Patents
Energy storage discharge system test platform for power supply detection Download PDFInfo
- Publication number
- CN112986851A CN112986851A CN202110174620.7A CN202110174620A CN112986851A CN 112986851 A CN112986851 A CN 112986851A CN 202110174620 A CN202110174620 A CN 202110174620A CN 112986851 A CN112986851 A CN 112986851A
- Authority
- CN
- China
- Prior art keywords
- energy storage
- data
- discharge
- voltage
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an energy storage discharge system test platform for power supply detection, which analyzes the current, voltage, temperature and capacity conditions in the energy storage process of a power supply by arranging an energy storage analysis unit, calculates the stability and energy conversion efficiency of the power supply in the charging and energy storage process, improves the detection efficiency and accuracy of the power supply in the energy storage process, and simultaneously ensures the safety of the power supply in the charging process; through setting up discharge control unit and ageing evaluation unit, monitor the discharge process of power to the effectual number of times that discharges of power is taken notes, carries out the analysis to temperature rise speed, electric energy release efficiency in the power discharge process simultaneously, finally carries out the ageing evaluation of power, provides the theoretical foundation for the ageing evaluation of power, provides help to the grasp of the discharge performance of power, and the complexity of the equipment that simplifies has simultaneously improved detection efficiency.
Description
Technical Field
The invention relates to a test platform, in particular to a test platform of an energy storage and discharge system for power supply detection.
Background
A power supply is a device that converts other forms of energy into electrical energy, and a power supply is a device that provides power to an electronic device, also known as a power supply, that provides the electrical energy required by all components in the powered device. The size of mains power, whether electric current and voltage are stable will directly influence the working property and the life of consumer, and these factors all need test at the in-process of power production, and only after having passed the test, guaranteed that it has the power after the stability, just can drop into actual application process and go.
At present, the conventional energy storage discharge control system test mode mainly uses auxiliary equipment such as a signal generator, an adjustable power supply, a universal meter, an oscilloscope and the like to carry out testing, and the test flow is complex, so that the test efficiency is not high, and the labor intensity of testers is high.
Disclosure of Invention
The invention aims to provide an energy storage discharge system test platform for power supply detection, which analyzes the current, voltage, temperature and capacity conditions of a power supply in the energy storage process by arranging an energy storage analysis unit, calculates the stability and energy conversion efficiency of the power supply in the charging and energy storage process, improves the detection efficiency and accuracy of the power supply in the energy storage process, and simultaneously ensures the safety of the power supply in the charging process; through setting up discharge control unit and ageing evaluation unit, monitor the discharge process of power to the effectual number of times that discharges of power is taken notes, carries out the analysis to temperature rise speed, electric energy release efficiency in the power discharge process simultaneously, finally carries out the ageing evaluation of power, provides the theoretical foundation for the ageing evaluation of power, provides help to the grasp of the discharge performance of power, and the complexity of the equipment that simplifies has simultaneously improved detection efficiency.
The technical problem solved by the invention is as follows:
(1) how to analyze the current, voltage, temperature and capacity conditions in the energy storage process of the power supply by arranging an energy storage analysis unit solves the problem that the continuous state tracking of the power supply cannot be carried out on a single device in the prior art;
(2) how to monitor the discharge process of the power supply by arranging the discharge control unit and the aging evaluation unit, record the effective discharge times of the power supply, analyze the temperature rise speed and the electric energy release efficiency in the discharge process of the power supply, and finally perform the aging evaluation of the power supply, thereby solving the problem that the power supply is lack of necessary data support for the aging in the prior art.
The purpose of the invention can be realized by the following technical scheme: an energy storage and discharge system test platform for power supply detection comprises a data acquisition unit, an energy storage analysis unit, a discharge control unit, an aging evaluation unit, an alarm unit, a data storage unit and a display control platform;
the data acquisition unit is used for acquiring energy storage current data, energy storage voltage data, discharge current data, discharge voltage data, energy storage temperature data, discharge temperature data, energy storage acquisition time data and discharge acquisition time data in real time, the data acquisition unit is also used for acquiring energy storage capacity data in the energy storage process and discharge capacity data in the discharge process in real time and transmitting the data to the data storage unit for storage, the energy storage capacity data represents the electric energy storage amount in the power supply at a certain moment in the energy storage process, and the discharge capacity data represents the electric energy storage amount in the power supply at a certain moment in the discharge process;
the energy storage analysis unit monitors and analyzes an energy storage state in the energy storage process of the power supply, transmits the obtained energy storage current discrete coefficient, energy storage voltage discrete coefficient, energy storage temperature rise data mean value, energy storage efficiency data and energy storage time data to the aging evaluation unit, transmits an energy storage temperature alarm signal and an energy storage overtime signal to the alarm unit, and transmits a charging completion signal to the discharging control unit;
the discharge control unit is used for controlling and analyzing the discharge state of the power supply, obtaining the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, sending the data to the aging evaluation unit, and transmitting a discharge temperature alarm signal and a voltage drop alarm signal to the alarm unit;
the aging evaluation unit is used for analyzing and evaluating the aging state of the power supply in the frequent discharging process to obtain an aging coefficient, judging that the power supply is seriously aged and cannot be normally used when the aging coefficient is greater than or equal to a preset aging coefficient threshold value, calculating the charging times and the discharging times of the power supply in the whole charging and discharging process and transmitting the charging times and the discharging times to the display control platform for displaying;
the alarm unit is used for recognizing the signals and carrying out voice alarm.
The invention has further technical improvements that: the energy storage analysis unit comprises the following specific steps of:
step S21: extracting energy storage current data, energy storage voltage data, energy storage temperature data, energy storage capacity data and energy storage acquisition time data from a data storage unit, marking the energy storage current data as Ici, the energy storage voltage data as Uci, the energy storage temperature data as Tci, the energy storage capacity data as Wci, and the energy storage acquisition time data as Tci, wherein i represents the sequence number of the acquired data in the energy storage process, and i is 1,2,3 … … n 1;
step S22: respectively obtaining the average values of the energy storage current data and the energy storage voltage data to obtain an energy storage current mean value and an energy storage voltage mean value, respectively obtaining an energy storage current variance and an energy storage voltage variance according to the energy storage current mean value and the energy storage voltage mean value, presetting a current variance limit value and a voltage variance limit value in an energy storage analysis unit, and respectively carrying out ratio operation on the energy storage current variance and the current variance limit value and the energy storage voltage variance and the voltage variance limit value to obtain an energy storage current discrete coefficient and an energy storage voltage discrete coefficient;
step S23: an energy storage temperature threshold is preset in the energy storage analysis unit, the energy storage temperature threshold is compared with the energy storage temperature data, when the energy storage temperature data is smaller than or equal to the energy storage temperature threshold, the energy storage temperature is judged to be normal, and the step S25 is directly performed; when the energy storage temperature data is larger than the energy storage temperature threshold, judging that the energy storage temperature is abnormal, generating an energy storage temperature alarm signal, and entering step S24;
step S24: establishing a virtual first plane rectangular coordinate system, taking energy storage acquisition time data as a horizontal axis, taking energy storage temperature data as a vertical axis, marking the energy storage acquisition time data in the virtual first plane rectangular coordinate system by taking (Tci ) as a coordinate point, connecting adjacent coordinate points by using a smooth curve, measuring and calculating the slope of each point on the smooth curve, wherein the slope value of the corresponding point represents the temperature rise speed at the time point, summing the slope values of the points, calculating the average value to obtain the slope average value, and marking the slope average value as the energy storage temperature rise speed average value;
step S25: establishing a virtual second plane rectangular coordinate system, taking energy storage acquisition time data as a horizontal axis, taking the product of energy storage current data and energy storage voltage data as a vertical axis, marking the product of the energy storage current data and the energy storage voltage data as real-time energy storage power Pci, marking the product of the energy storage current data and the energy storage voltage data in the virtual second plane rectangular coordinate system by taking (tci, Pci) as a coordinate point, connecting adjacent coordinate points by using a smooth curve, and integrating the energy storage acquisition time data by using the real-time energy storage power according to the smooth curve to obtain integral capacity data;
step S26: the energy storage analysis unit is preset with saturated capacity data, when the energy storage capacity data is smaller than the saturated capacity data, the power supply is judged to have energy storage space, no processing is carried out, when the energy storage capacity data is larger than or equal to the saturated capacity data, the energy storage space of the power supply is judged to be full, a charging completion signal is generated, ratio operation is carried out on the energy storage capacity data and integral capacity data at the moment to obtain energy storage efficiency data, meanwhile, the required time in the energy storage process is calculated and marked as energy storage time data, and the energy storage time data is compared with the preset energy storage time limit in the energy storage analysis unit:
when the energy storage time data is less than or equal to the preset energy storage time limit, judging that the energy storage time is normal, and not performing any treatment;
and when the energy storage time data is greater than the preset energy storage time limit, judging that the energy storage time is abnormal, and generating an energy storage overtime signal.
The invention has further technical improvements that: the discharge control unit is internally provided with an automatic controller, and the specific steps of the discharge control unit for controlling and analyzing the discharge state of the power supply are as follows:
step S31: when the automatic controller receives and recognizes the charging completion signal, the timer is started, when the time on the timer is consistent with the preset discharging delay time, the timer is reset and closed, a discharging electric pulse signal is generated and sent to the energy storage module, the energy storage module is driven to discharge, the pulse width of the discharging signal, namely the duration of single discharging, is preset in the automatic controller, after the duration of single discharging is ended, the timer is restarted, and when the timer reaches the preset discharging delay time, the discharging electric pulse signal is generated and sent to the energy storage module, and the energy storage module is driven to discharge;
step S32: extracting discharge current data, discharge voltage data, discharge temperature data and discharge acquisition time data from the data storage unit, wherein the discharge current data is marked as Ifj, the discharge voltage data is marked as Ufj, the discharge temperature data is marked as Tfj, and the discharge acquisition time data is marked as Tfj, wherein j represents the sequence number of the acquired data in the discharge process, and j is 1,2,3 … … n 2;
step S33: recording the discharge times, marking the discharge times as k, wherein k is a positive integer, and dividing discharge current data, discharge voltage data, discharge temperature data and discharge acquisition time data according to different discharge times;
step S34: the discharge control unit stores a discharge temperature threshold, compares the discharge temperature threshold with the discharge temperature data, judges that the discharge temperature is normal when the discharge temperature data is less than or equal to the discharge temperature threshold, and directly enters step S35; when the discharge temperature data is greater than the discharge temperature threshold, judging that the discharge temperature is abnormal, generating a discharge temperature alarm signal, and calculating to obtain a mean value of the discharge temperature rise speed in the same way as in step S24;
step S35: calculating the average value of the discharge voltage data acquired in each discharge process to obtain the discharge voltage average value Usk of each time, and calculating the voltage drop data delta U of the adjacent two discharge voltage average values1、ΔU2……ΔUk-1The discharge control unit is preset with a voltage loss limiting coefficient, and respectively outputs the delta U1、ΔU2……ΔUk-1Performing ratio operation with Us1 and Us2 … … Us (k-1) to obtain (k-1) voltage loss calculation coefficients, respectively comparing the voltage loss calculation coefficients with voltage loss limiting coefficients, judging that the voltage drop loss is normal when the voltage loss calculation coefficients are less than or equal to the voltage loss limiting coefficients, not performing any processing, and judging that the voltage drop loss is normal when the voltage loss calculation coefficients are greater than the voltage loss limiting coefficientsGenerating a pressure drop alarm signal when the loss is reduced and the consumption is abnormal;
step S36: the average value calculation is carried out on the discharge current data acquired in each discharge process to obtain the discharge current mean value Isk of each time, so that the electric energy release value of each time is obtained according to the product of the discharge current mean value, the discharge voltage mean value and the discharge signal pulse width, the total electric energy release value in the k discharge processes is solved, the residual energy storage data of the energy storage module after k discharges are obtained, the difference value calculation is carried out on the saturated capacity data and the residual energy storage data to obtain the discharge electric quantity data, and the ratio operation is carried out on the electric energy release total value and the discharge electric quantity data to obtain the discharge efficiency data.
The invention has further technical improvements that: the aging evaluation unit analyzes and evaluates the aging state of the power supply by the following specific steps:
step S41: acquiring energy storage current discrete coefficients, energy storage voltage discrete coefficients, energy storage temperature rise data mean values, energy storage efficiency data and energy storage time data, and respectively marking the data as a, b, delta Tc and delta TccnAnd tc, substituting the same into the calculation:
obtaining an energy storage aging coefficient LHcn, wherein alpha represents a temperature rise conversion factor, beta represents an energy storage time consumption conversion factor, and both alpha and beta are preset values;
step S42: acquiring the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, marking the average value of the discharge temperature rise speed as delta Tf, and marking the discharge efficiency data as deltafdSubstituting the same into the calculation formula:
obtaining a discharge aging coefficient LHfd;
step S43: substituting the energy storage aging coefficient and the discharge aging coefficient into a calculation formula: and the aging coefficient is x, the energy storage aging coefficient + y, the discharge aging coefficient, wherein x and y are respectively preset proportional distribution coefficients.
The invention has further technical improvements that: the alarm unit specifically identifies and processes the signals as follows:
step S51: when the energy storage temperature alarm signal and the discharge temperature alarm signal are identified, the energy storage temperature alarm signal and the discharge temperature alarm signal are converted into a cut-off signal to be transmitted to the display control platform, an alarm sound is sent out, and the display control platform receives the cut-off signal to cut off the power circuit;
step S52: when the energy storage overtime signal is identified, the energy storage overtime signal is transferred to a display control platform, and the display control platform receives the energy storage overtime signal, flickers an energy storage overtime word on a screen and performs corresponding voice broadcast;
step S53: when the pressure drop alarm signal is identified, the pressure drop alarm signal is transferred to the display and control platform, the display and control platform receives the pressure drop alarm signal, flickers 'abnormal pressure drop word' on the screen and carries out corresponding voice broadcast.
Compared with the prior art, the invention has the beneficial effects that:
1. when the energy storage and energy storage device is used, the energy storage analysis unit monitors and analyzes the energy storage state of the power supply in the energy storage process, the obtained energy storage current discrete coefficient, energy storage voltage discrete coefficient, energy storage temperature rise data mean value, energy storage efficiency data and energy storage time data are transmitted to the aging evaluation unit, the energy storage temperature alarm signal and the energy storage overtime signal are transmitted to the alarm unit, the charging completion signal is transmitted to the discharge control unit, the energy storage analysis unit is arranged to analyze the current, voltage, temperature and capacity conditions of the power supply in the energy storage process, the stability and the energy conversion efficiency of the power supply in the energy storage process are calculated, the detection efficiency and the accuracy of the energy storage process of the power supply are improved, and meanwhile the safety of the power supply in the charging process is guaranteed.
2. The discharge control unit is used for controlling and analyzing the discharge state of the power supply, obtaining the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, sending the data to the aging evaluation unit, and transmitting a discharge temperature alarm signal and a voltage drop alarm signal to the alarm unit; the aging evaluation unit analyzes and evaluates the aging state of the power supply in the frequent discharging process to obtain an aging coefficient, when the aging coefficient is more than or equal to a preset aging coefficient threshold value, the power supply is judged to be seriously aged and can not be normally used, the charging times and the discharging times of the power supply in the whole charging and discharging process are calculated and transmitted to the display and control platform for displaying, the alarm unit identifies signals and carries out voice alarm, the discharging process of the power supply is monitored by arranging the discharging control unit and the aging evaluation unit, the effective discharging times of the power supply are recorded, the temperature rise speed and the electric energy release efficiency in the discharging process of the power supply are analyzed, the aging evaluation of the power supply is finally carried out, a theoretical basis is provided for the aging evaluation of the power supply, assistance is provided for the mastering of the discharging performance of the power supply, and the complexity of simplified equipment is reduced, the detection efficiency is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an energy storage discharge system test platform for power supply detection includes a data acquisition unit, an energy storage analysis unit, a discharge control unit, an aging evaluation unit, an alarm unit, a data storage unit, and a display control platform;
the data acquisition unit is used for acquiring energy storage current data, energy storage voltage data, discharge current data, discharge voltage data, energy storage temperature data, discharge temperature data, energy storage acquisition time data and discharge acquisition time data in real time, the data acquisition unit is also used for acquiring energy storage capacity data in the energy storage process and discharge capacity data in the discharge process in real time and transmitting the data to the data storage unit for storage, the energy storage capacity data represents the electric energy storage amount in the power supply at a certain moment in the energy storage process, and the discharge capacity data represents the electric energy storage amount in the power supply at a certain moment in the discharge process;
the energy storage analysis unit monitors and analyzes an energy storage state in the energy storage process of the power supply, transmits the obtained energy storage current discrete coefficient, energy storage voltage discrete coefficient, energy storage temperature rise data mean value, energy storage efficiency data and energy storage time data to the aging evaluation unit, transmits an energy storage temperature alarm signal and an energy storage overtime signal to the alarm unit, and transmits a charging completion signal to the discharging control unit;
the discharge control unit is used for controlling and analyzing the discharge state of the power supply, obtaining the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, sending the data to the aging evaluation unit, and transmitting a discharge temperature alarm signal and a voltage drop alarm signal to the alarm unit;
the aging evaluation unit is used for analyzing and evaluating the aging state of the power supply in the frequent discharging process to obtain an aging coefficient, judging that the power supply is seriously aged and cannot be normally used when the aging coefficient is greater than or equal to a preset aging coefficient threshold value, calculating the charging times and the discharging times of the power supply in the whole charging and discharging process and transmitting the charging times and the discharging times to the display control platform for displaying;
the alarm unit is used for recognizing the signals and carrying out voice alarm.
The energy storage analysis unit comprises the following specific steps of:
step S21: extracting energy storage current data, energy storage voltage data, energy storage temperature data, energy storage capacity data and energy storage acquisition time data from a data storage unit, marking the energy storage current data as Ici, the energy storage voltage data as Uci, the energy storage temperature data as Tci, the energy storage capacity data as Wci, and the energy storage acquisition time data as Tci, wherein i represents the sequence number of the acquired data in the energy storage process, and i is 1,2,3 … … n 1;
step S22: respectively obtaining the average values of the energy storage current data and the energy storage voltage data to obtain an energy storage current mean value and an energy storage voltage mean value, respectively obtaining an energy storage current variance and an energy storage voltage variance according to the energy storage current mean value and the energy storage voltage mean value, presetting a current variance limit value and a voltage variance limit value in an energy storage analysis unit, and respectively carrying out ratio operation on the energy storage current variance and the current variance limit value and the energy storage voltage variance and the voltage variance limit value to obtain an energy storage current discrete coefficient and an energy storage voltage discrete coefficient;
step S23: an energy storage temperature threshold is preset in the energy storage analysis unit, the energy storage temperature threshold is compared with the energy storage temperature data, when the energy storage temperature data is smaller than or equal to the energy storage temperature threshold, the energy storage temperature is judged to be normal, and the step S25 is directly performed; when the energy storage temperature data is larger than the energy storage temperature threshold, judging that the energy storage temperature is abnormal, generating an energy storage temperature alarm signal, and entering step S24;
step S24: establishing a virtual first plane rectangular coordinate system, taking energy storage acquisition time data as a horizontal axis, taking energy storage temperature data as a vertical axis, marking the energy storage acquisition time data in the virtual first plane rectangular coordinate system by taking (Tci ) as a coordinate point, connecting adjacent coordinate points by using a smooth curve, measuring and calculating the slope of each point on the smooth curve, wherein the slope value of the corresponding point represents the temperature rise speed at the time point, summing the slope values of the points, calculating the average value to obtain the slope average value, and marking the slope average value as the energy storage temperature rise speed average value;
step S25: establishing a virtual second plane rectangular coordinate system, taking energy storage acquisition time data as a horizontal axis, taking the product of energy storage current data and energy storage voltage data as a vertical axis, marking the product of the energy storage current data and the energy storage voltage data as real-time energy storage power Pci, marking the product of the energy storage current data and the energy storage voltage data in the virtual second plane rectangular coordinate system by taking (tci, Pci) as a coordinate point, connecting adjacent coordinate points by using a smooth curve, and integrating the energy storage acquisition time data by using the real-time energy storage power according to the smooth curve to obtain integral capacity data;
step S26: the energy storage analysis unit is preset with saturated capacity data, when the energy storage capacity data is smaller than the saturated capacity data, the power supply is judged to have energy storage space, no processing is carried out, when the energy storage capacity data is larger than or equal to the saturated capacity data, the energy storage space of the power supply is judged to be full, a charging completion signal is generated, ratio operation is carried out on the energy storage capacity data and integral capacity data at the moment to obtain energy storage efficiency data, meanwhile, the required time in the energy storage process is calculated and marked as energy storage time data, and the energy storage time data is compared with the preset energy storage time limit in the energy storage analysis unit:
when the energy storage time data is less than or equal to the preset energy storage time limit, judging that the energy storage time is normal, and not performing any treatment;
and when the energy storage time data is greater than the preset energy storage time limit, judging that the energy storage time is abnormal, and generating an energy storage overtime signal.
The discharge control unit is internally provided with an automatic controller, and the specific steps of the discharge control unit for controlling and analyzing the discharge state of the power supply are as follows:
step S31: when the automatic controller receives and recognizes the charging completion signal, the timer is started, when the time on the timer is consistent with the preset discharging delay time, the timer is reset and closed, a discharging electric pulse signal is generated and sent to the energy storage module, the energy storage module is driven to discharge, the pulse width of the discharging signal, namely the duration of single discharging, is preset in the automatic controller, after the duration of single discharging is ended, the timer is restarted, and when the timer reaches the preset discharging delay time, the discharging electric pulse signal is generated and sent to the energy storage module, and the energy storage module is driven to discharge;
step S32: extracting discharge current data, discharge voltage data, discharge temperature data and discharge acquisition time data from the data storage unit, wherein the discharge current data is marked as Ifj, the discharge voltage data is marked as Ufj, the discharge temperature data is marked as Tfj, and the discharge acquisition time data is marked as Tfj, wherein j represents the sequence number of the acquired data in the discharge process, and j is 1,2,3 … … n 2;
step S33: recording the discharge times, marking the discharge times as k, wherein k is a positive integer, and dividing discharge current data, discharge voltage data, discharge temperature data and discharge acquisition time data according to different discharge times;
step S34: the discharge control unit stores a discharge temperature threshold, compares the discharge temperature threshold with the discharge temperature data, judges that the discharge temperature is normal when the discharge temperature data is less than or equal to the discharge temperature threshold, and directly enters step S35; when the discharge temperature data is greater than the discharge temperature threshold, judging that the discharge temperature is abnormal, generating a discharge temperature alarm signal, and calculating to obtain a mean value of the discharge temperature rise speed in the same way as in step S24;
step S35: calculating the average value of the discharge voltage data acquired in each discharge process to obtain the discharge voltage average value Usk of each time, and calculating the voltage drop data delta U of the adjacent two discharge voltage average values1、ΔU2……ΔUk-1The discharge control unit is preset with a voltage loss limiting coefficient, and respectively outputs the delta U1、ΔU2……ΔUk-1Carrying out ratio operation with Us1 and Us2 … … Us (k-1) to obtain (k-1) voltage loss calculation coefficients, respectively comparing the voltage loss calculation coefficients with voltage loss limiting coefficients, judging that the voltage drop loss is normal when the voltage loss calculation coefficients are less than or equal to the voltage loss limiting coefficients, not carrying out any processing, and judging that the voltage drop loss is abnormal when the voltage loss calculation coefficients are greater than the voltage loss limiting coefficients to generate a voltage drop alarm signal;
step S36: the average value calculation is carried out on the discharge current data acquired in each discharge process to obtain the discharge current mean value Isk of each time, so that the electric energy release value of each time is obtained according to the product of the discharge current mean value, the discharge voltage mean value and the discharge signal pulse width, the total electric energy release value in the k discharge processes is solved, the residual energy storage data of the energy storage module after k discharges are obtained, the difference value calculation is carried out on the saturated capacity data and the residual energy storage data to obtain the discharge electric quantity data, and the ratio operation is carried out on the electric energy release total value and the discharge electric quantity data to obtain the discharge efficiency data.
The aging evaluation unit analyzes and evaluates the aging state of the power supply by the following specific steps:
step S41: acquiring energy storage current discrete coefficient, energy storage voltage discrete coefficient, energy storage temperature rise data mean value, energy storage efficiency data and energy storage time data, and respectively markingIs a, b, Δ Tc, δcnAnd tc, substituting the same into the calculation:
obtaining an energy storage aging coefficient LHcn, wherein alpha represents a temperature rise conversion factor, beta represents an energy storage time consumption conversion factor, and both alpha and beta are preset values;
step S42: acquiring the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, marking the average value of the discharge temperature rise speed as delta Tf, and marking the discharge efficiency data as deltafdSubstituting the same into the calculation formula:
obtaining a discharge aging coefficient LHfd;
step S43: substituting the energy storage aging coefficient and the discharge aging coefficient into a calculation formula: and the aging coefficient is x, the energy storage aging coefficient + y, the discharge aging coefficient, wherein x and y are respectively preset proportional distribution coefficients.
The alarm unit specifically identifies and processes the signals as follows:
step S51: when the energy storage temperature alarm signal and the discharge temperature alarm signal are identified, the energy storage temperature alarm signal and the discharge temperature alarm signal are converted into a cut-off signal to be transmitted to the display control platform, an alarm sound is sent out, and the display control platform receives the cut-off signal to cut off the power circuit;
step S52: when the energy storage overtime signal is identified, the energy storage overtime signal is transferred to a display control platform, and the display control platform receives the energy storage overtime signal, flickers an energy storage overtime word on a screen and performs corresponding voice broadcast;
step S53: when the pressure drop alarm signal is identified, the pressure drop alarm signal is transferred to the display and control platform, the display and control platform receives the pressure drop alarm signal, flickers 'abnormal pressure drop word' on the screen and carries out corresponding voice broadcast.
The working principle is as follows: when the invention is used, firstly, the data acquisition unit acquires energy storage current data, energy storage voltage data, discharge current data, discharge voltage data, energy storage temperature data, discharge temperature data, energy storage acquisition time data and discharge acquisition time data in real time, the data acquisition unit also acquires energy storage capacity data in the energy storage process and discharge capacity data in the discharge process in real time and transmits the data to the data storage unit for storage, the energy storage analysis unit monitors and analyzes the energy storage state in the energy storage process of the power supply and transmits the obtained energy storage current discrete coefficient, energy storage voltage discrete coefficient, energy storage temperature rise data mean value, energy storage efficiency data and energy storage time data to the aging evaluation unit, the energy storage temperature alarm signal and the energy storage overtime signal are transmitted to the alarm unit, and the charging completion signal is transmitted to the discharge control unit, the discharge control unit is used for controlling and analyzing the discharge state of the power supply, obtaining the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, sending the data to the aging evaluation unit, and transmitting a discharge temperature alarm signal and a voltage drop alarm signal to the alarm unit; the aging evaluation unit analyzes and evaluates the aging state of the power supply in the frequent discharging process to obtain an aging coefficient, when the aging coefficient is larger than or equal to a preset aging coefficient threshold value, the power supply is judged to be seriously aged and can not be normally used, the charging times and the discharging times of the power supply in the whole charging and discharging process are calculated and transmitted to the display control platform to be displayed, and the alarm unit identifies signals and carries out voice alarm.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. The utility model provides a power detects uses energy storage discharge system test platform which characterized in that: the device comprises a data acquisition unit, an energy storage analysis unit, a discharge control unit, an aging evaluation unit, an alarm unit, a data storage unit and a display control platform;
the data acquisition unit is used for acquiring energy storage current data, energy storage voltage data, discharge current data, discharge voltage data, energy storage temperature data, discharge temperature data, energy storage acquisition time data and discharge acquisition time data in real time, the data acquisition unit is also used for acquiring energy storage capacity data in the energy storage process and discharge capacity data in the discharge process in real time and transmitting the data to the data storage unit for storage, the energy storage capacity data represents the electric energy storage amount in the power supply at a certain moment in the energy storage process, and the discharge capacity data represents the electric energy storage amount in the power supply at a certain moment in the discharge process;
the energy storage analysis unit monitors and analyzes an energy storage state in the energy storage process of the power supply, transmits the obtained energy storage current discrete coefficient, energy storage voltage discrete coefficient, energy storage temperature rise data mean value, energy storage efficiency data and energy storage time data to the aging evaluation unit, transmits an energy storage temperature alarm signal and an energy storage overtime signal to the alarm unit, and transmits a charging completion signal to the discharging control unit;
the discharge control unit is used for controlling and analyzing the discharge state of the power supply, obtaining the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, sending the data to the aging evaluation unit, and transmitting a discharge temperature alarm signal and a voltage drop alarm signal to the alarm unit;
the aging evaluation unit is used for analyzing and evaluating the aging state of the power supply in the frequent discharging process to obtain an aging coefficient, judging that the power supply is seriously aged and cannot be normally used when the aging coefficient is greater than or equal to a preset aging coefficient threshold value, calculating the charging times and the discharging times of the power supply in the whole charging and discharging process and transmitting the charging times and the discharging times to the display control platform for displaying;
the alarm unit is used for recognizing the signals and carrying out voice alarm.
2. The energy storage discharge system test platform for power supply detection according to claim 1, wherein the energy storage analysis unit performs monitoring analysis by the following specific steps:
step S21: extracting energy storage current data, energy storage voltage data, energy storage temperature data, energy storage capacity data and energy storage acquisition time data from a data storage unit, marking the energy storage current data as Ici, the energy storage voltage data as Uci, the energy storage temperature data as Tci, the energy storage capacity data as Wci, and the energy storage acquisition time data as Tci, wherein i represents the sequence number of the acquired data in the energy storage process, and i is 1,2,3 … … n 1;
step S22: respectively obtaining the average values of the energy storage current data and the energy storage voltage data to obtain an energy storage current mean value and an energy storage voltage mean value, respectively obtaining an energy storage current variance and an energy storage voltage variance according to the energy storage current mean value and the energy storage voltage mean value, presetting a current variance limit value and a voltage variance limit value in an energy storage analysis unit, and respectively carrying out ratio operation on the energy storage current variance and the current variance limit value and the energy storage voltage variance and the voltage variance limit value to obtain an energy storage current discrete coefficient and an energy storage voltage discrete coefficient;
step S23: an energy storage temperature threshold is preset in the energy storage analysis unit, the energy storage temperature threshold is compared with the energy storage temperature data, when the energy storage temperature data is smaller than or equal to the energy storage temperature threshold, the energy storage temperature is judged to be normal, and the step S25 is directly performed; when the energy storage temperature data is larger than the energy storage temperature threshold, judging that the energy storage temperature is abnormal, generating an energy storage temperature alarm signal, and entering step S24;
step S24: establishing a virtual first plane rectangular coordinate system, taking energy storage acquisition time data as a horizontal axis, taking energy storage temperature data as a vertical axis, marking the energy storage acquisition time data in the virtual first plane rectangular coordinate system by taking (Tci ) as a coordinate point, connecting adjacent coordinate points by using a smooth curve, measuring and calculating the slope of each point on the smooth curve, wherein the slope value of the corresponding point represents the temperature rise speed at the time point, summing the slope values of the points, calculating the average value to obtain the slope average value, and marking the slope average value as the energy storage temperature rise speed average value;
step S25: establishing a virtual second plane rectangular coordinate system, taking energy storage acquisition time data as a horizontal axis, taking the product of energy storage current data and energy storage voltage data as a vertical axis, marking the product of the energy storage current data and the energy storage voltage data as real-time energy storage power Pci, marking the product of the energy storage current data and the energy storage voltage data in the virtual second plane rectangular coordinate system by taking (tci, Pci) as a coordinate point, connecting adjacent coordinate points by using a smooth curve, and integrating the energy storage acquisition time data by using the real-time energy storage power according to the smooth curve to obtain integral capacity data;
step S26: the energy storage analysis unit is preset with saturated capacity data, when the energy storage capacity data is smaller than the saturated capacity data, the power supply is judged to have energy storage space, no processing is carried out, when the energy storage capacity data is larger than or equal to the saturated capacity data, the energy storage space of the power supply is judged to be full, a charging completion signal is generated, ratio operation is carried out on the energy storage capacity data and integral capacity data at the moment to obtain energy storage efficiency data, meanwhile, the required time in the energy storage process is calculated and marked as energy storage time data, and the energy storage time data is compared with the preset energy storage time limit in the energy storage analysis unit:
when the energy storage time data is less than or equal to the preset energy storage time limit, judging that the energy storage time is normal, and not performing any treatment;
and when the energy storage time data is greater than the preset energy storage time limit, judging that the energy storage time is abnormal, and generating an energy storage overtime signal.
3. The energy storage discharge system test platform for power supply detection according to claim 1, wherein the discharge control unit is provided with an automatic controller, and the specific steps of the discharge control unit for controlling and analyzing the discharge state of the power supply are as follows:
step S31: when the automatic controller receives and recognizes the charging completion signal, the timer is started, when the time on the timer is consistent with the preset discharging delay time, the timer is reset and closed, a discharging electric pulse signal is generated and sent to the energy storage module, the energy storage module is driven to discharge, the pulse width of the discharging signal, namely the duration of single discharging, is preset in the automatic controller, after the duration of single discharging is ended, the timer is restarted, and when the timer reaches the preset discharging delay time, the discharging electric pulse signal is generated and sent to the energy storage module, and the energy storage module is driven to discharge;
step S32: extracting discharge current data, discharge voltage data, discharge temperature data and discharge acquisition time data from the data storage unit, wherein the discharge current data is marked as Ifj, the discharge voltage data is marked as Ufj, the discharge temperature data is marked as Tfj, and the discharge acquisition time data is marked as Tfj, wherein j represents the sequence number of the acquired data in the discharge process, and j is 1,2,3 … … n 2;
step S33: recording the discharge times, marking the discharge times as k, wherein k is a positive integer, and dividing discharge current data, discharge voltage data, discharge temperature data and discharge acquisition time data according to different discharge times;
step S34: the discharge control unit stores a discharge temperature threshold, compares the discharge temperature threshold with the discharge temperature data, judges that the discharge temperature is normal when the discharge temperature data is less than or equal to the discharge temperature threshold, and directly enters step S35; when the discharge temperature data is greater than the discharge temperature threshold, judging that the discharge temperature is abnormal, generating a discharge temperature alarm signal, and calculating to obtain a mean value of the discharge temperature rise speed in the same way as in step S24;
step S35: calculating the average value of the discharge voltage data acquired in each discharge process to obtain the discharge voltage average value Usk of each time, and calculating the voltage drop data delta U of the adjacent two discharge voltage average values1、ΔU2……ΔUk-1The discharge control unit is preset with a voltage loss limiting coefficient, and respectively outputs the delta U1、ΔU2……ΔUk-1Carrying out ratio operation with Us1 and Us2 … … Us (k-1) to obtain (k-1) voltage loss calculation coefficients, respectively comparing the voltage loss calculation coefficients with voltage loss limiting coefficients, judging that the voltage drop loss is normal when the voltage loss calculation coefficients are less than or equal to the voltage loss limiting coefficients, not carrying out any processing, and judging that the voltage drop loss is abnormal when the voltage loss calculation coefficients are greater than the voltage loss limiting coefficients to generate a voltage drop alarm signal;
step S36: the average value calculation is carried out on the discharge current data acquired in each discharge process to obtain the discharge current mean value Isk of each time, so that the electric energy release value of each time is obtained according to the product of the discharge current mean value, the discharge voltage mean value and the discharge signal pulse width, the total electric energy release value in the k discharge processes is solved, the residual energy storage data of the energy storage module after k discharges are obtained, the difference value calculation is carried out on the saturated capacity data and the residual energy storage data to obtain the discharge electric quantity data, and the ratio operation is carried out on the electric energy release total value and the discharge electric quantity data to obtain the discharge efficiency data.
4. The energy storage discharge system test platform for power supply detection according to claim 1, wherein the aging evaluation unit performs analysis and evaluation on the aging state of the power supply by the following specific steps:
step S41: acquiring energy storage current discrete coefficients, energy storage voltage discrete coefficients, energy storage temperature rise data mean values, energy storage efficiency data and energy storage time data, and respectively marking the data as a, b, delta Tc and delta TccnAnd tc, substituting the same into the calculation:
obtaining an energy storage aging coefficient LHcn, wherein alpha represents a temperature rise conversion factor, beta represents an energy storage time consumption conversion factor, and both alpha and beta are preset values;
step S42: acquiring the average value of the discharge temperature rise speed, the discharge times and the discharge efficiency data, marking the average value of the discharge temperature rise speed as delta Tf, and marking the discharge efficiency data as deltafdSubstituting the same into the calculation formula:
obtaining a discharge aging coefficient LHfd;
step S43: substituting the energy storage aging coefficient and the discharge aging coefficient into a calculation formula: and the aging coefficient is x, the energy storage aging coefficient + y, the discharge aging coefficient, wherein x and y are respectively preset proportional distribution coefficients.
5. The energy storage and discharge system test platform for power supply detection according to claim 1, wherein the alarm unit performs identification processing on the signal in the following specific manner:
step S51: when the energy storage temperature alarm signal and the discharge temperature alarm signal are identified, the energy storage temperature alarm signal and the discharge temperature alarm signal are converted into a cut-off signal to be transmitted to the display control platform, an alarm sound is sent out, and the display control platform receives the cut-off signal to cut off the power circuit;
step S52: when the energy storage overtime signal is identified, the energy storage overtime signal is transferred to a display control platform, and the display control platform receives the energy storage overtime signal, flickers an energy storage overtime word on a screen and performs corresponding voice broadcast;
step S53: when the pressure drop alarm signal is identified, the pressure drop alarm signal is transferred to the display and control platform, the display and control platform receives the pressure drop alarm signal, flickers 'abnormal pressure drop word' on the screen and carries out corresponding voice broadcast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110174620.7A CN112986851A (en) | 2021-02-05 | 2021-02-05 | Energy storage discharge system test platform for power supply detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110174620.7A CN112986851A (en) | 2021-02-05 | 2021-02-05 | Energy storage discharge system test platform for power supply detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112986851A true CN112986851A (en) | 2021-06-18 |
Family
ID=76347948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110174620.7A Pending CN112986851A (en) | 2021-02-05 | 2021-02-05 | Energy storage discharge system test platform for power supply detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112986851A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115015623A (en) * | 2022-06-02 | 2022-09-06 | 淮北工科检测检验有限公司 | Mining equipment operation safety evaluation system based on big data |
| WO2023029253A1 (en) * | 2021-09-06 | 2023-03-09 | 苏州浪潮智能科技有限公司 | Power source stability testing method, system, and device |
| CN116381302A (en) * | 2023-04-14 | 2023-07-04 | 杭州中凯通信设备有限公司 | Embedded waterproof electric energy metering box |
| CN116466168A (en) * | 2023-04-24 | 2023-07-21 | 江苏新博能源科技有限公司 | New energy management platform anomaly monitoring system and method based on cloud computing |
-
2021
- 2021-02-05 CN CN202110174620.7A patent/CN112986851A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029253A1 (en) * | 2021-09-06 | 2023-03-09 | 苏州浪潮智能科技有限公司 | Power source stability testing method, system, and device |
| CN115015623A (en) * | 2022-06-02 | 2022-09-06 | 淮北工科检测检验有限公司 | Mining equipment operation safety evaluation system based on big data |
| CN116381302A (en) * | 2023-04-14 | 2023-07-04 | 杭州中凯通信设备有限公司 | Embedded waterproof electric energy metering box |
| CN116381302B (en) * | 2023-04-14 | 2023-11-07 | 杭州中凯通信设备有限公司 | Embedded waterproof electric energy metering box |
| CN116466168A (en) * | 2023-04-24 | 2023-07-21 | 江苏新博能源科技有限公司 | New energy management platform anomaly monitoring system and method based on cloud computing |
| CN116466168B (en) * | 2023-04-24 | 2023-11-24 | 江苏新博能源科技有限公司 | New energy management platform anomaly monitoring system and method based on cloud computing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112986851A (en) | Energy storage discharge system test platform for power supply detection | |
| CN105807230B (en) | Remaining battery capacity and health status rapid detection method and device | |
| CN107167677B (en) | Simulation test device and test method for battery management system | |
| CN110554351B (en) | Real load detection method and system of non-invasive load electric energy meter | |
| CN104237643B (en) | Power battery pack internal connection resistance detection method | |
| CN117269785B (en) | Multi-mode test supervision system of lithium battery pack based on data analysis | |
| CN112956064A (en) | Specific-class industrial battery optimization and repair equipment with battery diagnosis and battery life prediction and artificial intelligence device | |
| KR20160080802A (en) | Apparatus and Method for estimating resistance of battery pack | |
| CN111769651B (en) | Line loss analysis method and system for low-voltage power supply line | |
| CN113341262A (en) | Platformization load data acquisition device | |
| CN117554736A (en) | Online detection communication system and working method | |
| CN2336506Y (en) | Control device for charger | |
| CN112363073B (en) | One-key type nuclear capacity device and method for direct-current storage battery of factory station | |
| CN102608457B (en) | System and method for automatic control and intelligent analysis in insulator pollution experiments | |
| CN115575795A (en) | Aging test device and method for circuit board card | |
| CN115469241A (en) | Fault detection method and device for charging module of direct-current power supply system | |
| CN212410830U (en) | Test system for electrical connections in a battery system | |
| CN113740314A (en) | Full-automatic online detection method and system for high-temperature melt components | |
| CN114002609A (en) | Power operation real-time supervision early warning system based on thing networking | |
| CN113311262A (en) | On-line detection method for silicon controlled trigger pulse of three-phase rectifier of electric arc furnace | |
| CN214278337U (en) | High-voltage discharge rod residual charge detection device | |
| CN221238985U (en) | Nuclear power plant storage battery operation and maintenance device | |
| CN216771931U (en) | Power battery internal resistance detection device and power battery | |
| CN116683567B (en) | High-precision bidirectional direct-current power supply for electric control test of new energy automobile | |
| CN110579691A (en) | Storage battery pack insulation descending positioning monitoring device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |