CN114167296A - Device and method for monitoring remote charging and discharging nuclear capacity of storage battery - Google Patents
Device and method for monitoring remote charging and discharging nuclear capacity of storage battery Download PDFInfo
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- CN114167296A CN114167296A CN202111231919.8A CN202111231919A CN114167296A CN 114167296 A CN114167296 A CN 114167296A CN 202111231919 A CN202111231919 A CN 202111231919A CN 114167296 A CN114167296 A CN 114167296A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 73
- 238000007599 discharging Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007405 data analysis Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 18
- 238000012806 monitoring device Methods 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- 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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- 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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Abstract
The invention discloses a device and a method for monitoring the remote charging and discharging nuclear capacity of a storage battery, wherein the device comprises: the charging voltage monitoring unit is used for measuring the charging voltage of the storage battery pack in real time during charging; the single storage battery monitoring unit is used for measuring the voltage, the temperature and the internal resistance of the single storage battery in real time; discharge voltage monitoring unit: the device is used for measuring the discharge voltage of the storage battery pack during discharge in real time; a data analysis unit: comparing the real-time measured data with a preset threshold value; a control unit: when the data analysis unit analyzes that the data is abnormal, the alarm unit is controlled to send out an alarm signal, and the alarm signal and the abnormal data are sent to the remote monitoring host through the communication unit. The invention integrates the on-line measurement function of the battery, really realizes the remote nuclear capacity monitoring of the direct-current storage battery pack, and makes the remote operation and maintenance of the storage battery pack possible.
Description
Technical Field
The invention relates to the technical field of remote charging and discharging nuclear capacity of storage batteries, in particular to a device and a method for monitoring the remote charging and discharging nuclear capacity of the storage batteries.
Background
In a power grid transformer substation, the judgment of the state of the direct-current storage battery pack mainly depends on manual periodic discharge tests, whether the capacity of the battery pack is more than 80% of the nominal capacity is determined through annual checking discharge, and batteries with insufficient capacity are checked; the open circuit phenomenon of the battery was checked through the quarterly on-load discharge. The battery pack of the substation is generally configured with on-line monitoring of the storage battery mainly based on voltage monitoring, but has no effect on the judgment of the battery state in operation. The current checking discharge is long in time, basically adopts a resistive load, the discharge of a battery pack is converted into heat energy to be dissipated, people must stay on the spot during the discharge, and important parameters such as voltage, temperature, internal resistance and the like of the storage battery are continuously recorded during the charge and discharge of the storage battery, so that the time and the labor are consumed.
Disclosure of Invention
The invention aims to provide a device and a method for monitoring the remote charging and discharging checking capacity of a storage battery, which can solve the problems of time and labor consumption caused by the fact that people need to monitor the checking discharging work in the field in the prior art.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the invention provides a storage battery remote charging and discharging nuclear capacity monitoring device, which comprises a charging voltage monitoring unit, a single storage battery monitoring unit, a discharging voltage monitoring unit, a data analysis unit, a control unit, an alarm unit and a communication unit; wherein:
the charging voltage monitoring unit is used for measuring the charging voltage of the storage battery pack in real time during charging;
the single storage battery monitoring unit is used for measuring the voltage, the temperature and the internal resistance of the single storage battery in real time;
discharge voltage monitoring unit: the device is used for measuring the discharge voltage of the storage battery pack during discharge in real time;
a data analysis unit: comparing the charging voltage measured in real time with a preset first threshold value, comparing the discharging voltage measured in real time with a preset second threshold value, comparing the voltage of the single storage battery measured in real time with a preset third threshold value, comparing the temperature value of the single storage battery measured in real time with a preset fourth threshold value, and comparing the internal resistance value of the single storage battery measured in real time with a preset fifth threshold value;
a control unit: when the data analysis unit analyzes that the data is abnormal, the alarm unit is controlled to send out an alarm signal, and the alarm signal and the abnormal data are sent to the remote monitoring host through the communication unit.
Furthermore, the number of the single storage battery monitoring units is several, and each single storage battery monitoring unit is used for measuring the parameters of one single storage battery.
Furthermore, the single storage battery monitoring unit comprises a voltage detection module, a temperature sensor and an internal resistance detection module, wherein the voltage detection module detects the voltage value of the single storage battery, the temperature sensor detects the temperature value of the single storage battery during working, and the internal resistance detection module is used for detecting the internal resistance of the single storage battery.
Furthermore, the voltage detection module and the internal resistance detection module are respectively connected with the single storage battery to be detected in parallel.
Further, the data exception includes at least one of: the charging voltage is larger than the first threshold, the discharging voltage is smaller than the second threshold, the voltage of the single storage battery is smaller than the third threshold, the temperature value of the single storage battery is larger than the fourth threshold, and the internal resistance of the single storage battery is larger than the fifth threshold.
In a second aspect, the invention provides a method for monitoring the remote charging and discharging nuclear capacity of a storage battery, which comprises the following steps:
the charging voltage monitoring unit, the discharging voltage monitoring unit and the single storage battery monitoring unit respectively measure the charging voltage of the storage battery pack, the discharging voltage of the storage battery pack, and the voltage, the temperature and the internal resistance of the single storage battery in real time;
the data analysis unit compares the real-time measured data with a preset threshold value; when the real-time measurement data meet the preset alarm condition, the alarm unit sends an alarm signal to the remote monitoring host through the communication unit.
Further, the preset threshold includes a first threshold, a second threshold, a third threshold, a fourth threshold, and a fifth threshold.
Further, the alarm condition is at least one of the following conditions:
the charging voltage is greater than a first threshold;
the discharge voltage is less than a second threshold value;
the voltage of the single storage battery is less than a third threshold value;
the temperature value of the single storage battery is larger than a fourth threshold value;
the internal resistance of the single storage battery is larger than a fifth threshold value.
The device and the method for monitoring the remote charge and discharge nuclear capacity of the storage battery integrate the online measurement function of the battery, and really realize the remote nuclear capacity monitoring of the direct-current storage battery pack. Through the power information network, under the promotion of the auxiliary integrated monitoring system of the transformer substation of the power grid company, the remote monitoring function of the battery pack is constructed, so that the remote operation and maintenance of the battery pack become possible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of a device for monitoring remote charging and discharging nuclear capacity of a storage battery according to the present invention;
FIG. 2 is a block diagram of a cell monitoring unit of the present invention;
fig. 3 is a flowchart of a method of the device for monitoring the remote charging and discharging nuclear capacity of the storage battery according to the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The invention discloses a storage battery remote charging and discharging nuclear capacity monitoring device which comprises a charging voltage monitoring unit, a single storage battery monitoring unit, a discharging voltage monitoring unit, a data analysis unit, a control unit, an alarm unit and a communication unit, wherein the charging voltage monitoring unit is used for monitoring the charging voltage of a storage battery; wherein:
the charging voltage monitoring unit is used for measuring the charging voltage of the storage battery pack in real time during charging;
the single storage battery monitoring unit is used for measuring the voltage, the temperature and the internal resistance of the single storage battery in real time;
discharge voltage monitoring unit: the device is used for measuring the discharge voltage of the storage battery pack during discharge in real time;
a data analysis unit: comparing the charging voltage measured in real time with a preset first threshold value, comparing the discharging voltage measured in real time with a preset second threshold value, comparing the voltage of the single storage battery measured in real time with a preset third threshold value, comparing the temperature value of the single storage battery measured in real time with a preset fourth threshold value, and comparing the internal resistance value of the single storage battery measured in real time with a preset fifth threshold value;
a control unit: when the data analysis unit analyzes that the data is abnormal, the alarm unit is controlled to send out an alarm signal, and the alarm signal and the abnormal data are sent to the remote monitoring host through the communication unit.
Furthermore, the number of the single storage battery monitoring units is several, and each single storage battery monitoring unit is used for measuring the parameters of one single storage battery. The single storage battery monitoring unit comprises a voltage detection module, a temperature sensor and an internal resistance detection module, wherein the voltage detection module detects the voltage value of the single storage battery, the temperature sensor detects the temperature value of the working time of the single storage battery, and the internal resistance detection module is used for detecting the internal resistance of the single storage battery.
Furthermore, the voltage detection module and the internal resistance detection module are respectively connected with the single storage battery to be detected in parallel.
Further, the data exception includes at least one of: the charging voltage is larger than the first threshold, the discharging voltage is smaller than the second threshold, the voltage of the single storage battery is smaller than the third threshold, the temperature value of the single storage battery is larger than the fourth threshold, and the internal resistance of the single storage battery is larger than the fifth threshold.
The setting of each threshold is set according to the actual situation, and the specific value of the threshold should not be taken as a limitation to the scope of the present invention.
Further, the communication unit transmits data to the remote monitoring host in a wired or wireless mode.
The invention also provides a storage battery remote charging and discharging nuclear capacity monitoring method, which comprises the following steps:
step S1, the charging voltage monitoring unit, the discharging voltage monitoring unit and the single storage battery monitoring unit respectively measure the charging voltage of the storage battery pack, the discharging voltage of the storage battery pack, and the voltage, the temperature and the internal resistance of the single storage battery in real time;
step S2, the data analysis unit compares the real-time measured data with a preset threshold value; when the real-time measurement data meet the preset alarm condition, the alarm unit sends an alarm signal to the remote monitoring host through the communication unit.
Further, the preset threshold includes a first threshold, a second threshold, a third threshold, a fourth threshold, and a fifth threshold.
Further, the alarm condition is at least one of the following conditions:
the charging voltage is greater than a first threshold;
the discharge voltage is less than a second threshold value;
the voltage of the single storage battery is less than a third threshold value;
the temperature value of the single storage battery is larger than a fourth threshold value;
the internal resistance of the single storage battery is larger than a fifth threshold value.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (8)
1. A storage battery remote charging and discharging nuclear capacity monitoring device is characterized by comprising a charging voltage monitoring unit, a single storage battery monitoring unit, a discharging voltage monitoring unit, a data analysis unit, a control unit, an alarm unit and a communication unit; wherein:
the charging voltage monitoring unit is used for measuring the charging voltage of the storage battery pack in real time during charging;
the single storage battery monitoring unit is used for measuring the voltage, the temperature and the internal resistance of the single storage battery in real time;
discharge voltage monitoring unit: the device is used for measuring the discharge voltage of the storage battery pack during discharge in real time;
a data analysis unit: comparing the charging voltage measured in real time with a preset first threshold value, comparing the discharging voltage measured in real time with a preset second threshold value, comparing the voltage of the single storage battery measured in real time with a preset third threshold value, comparing the temperature value of the single storage battery measured in real time with a preset fourth threshold value, and comparing the internal resistance value of the single storage battery measured in real time with a preset fifth threshold value;
a control unit: when the data analysis unit analyzes that the data is abnormal, the alarm unit is controlled to send out an alarm signal, and the alarm signal and the abnormal data are sent to the remote monitoring host through the communication unit.
2. The device for monitoring the nuclear capacity of the storage battery during the remote charging and discharging process according to claim 1, wherein a plurality of single storage battery monitoring units are provided, and each single storage battery monitoring unit is used for measuring parameters of one single storage battery.
3. The device for monitoring the nuclear capacity of the storage battery during the remote charging and discharging process according to claim 2, wherein the single storage battery monitoring unit comprises a voltage detection module, a temperature sensor and an internal resistance detection module, the voltage detection module detects the voltage value of the single storage battery, the temperature sensor detects the temperature value of the single storage battery during the operation, and the internal resistance detection module is used for detecting the internal resistance of the single storage battery.
4. The device for monitoring the remote charging and discharging nuclear capacity of the storage battery according to claim 3, wherein the voltage detection module and the internal resistance detection module are respectively connected with the single storage battery to be tested in parallel.
5. The device for monitoring the remote charging and discharging nuclear capacity of the storage battery according to claim 1, wherein the data abnormality comprises at least one of: the charging voltage is larger than the first threshold, the discharging voltage is smaller than the second threshold, the voltage of the single storage battery is smaller than the third threshold, the temperature value of the single storage battery is larger than the fourth threshold, and the internal resistance of the single storage battery is larger than the fifth threshold.
6. A method for monitoring the remote charging and discharging nuclear capacity of a storage battery is characterized by comprising the following steps:
the charging voltage monitoring unit, the discharging voltage monitoring unit and the single storage battery monitoring unit respectively measure the charging voltage of the storage battery pack, the discharging voltage of the storage battery pack, and the voltage, the temperature and the internal resistance of the single storage battery in real time;
the data analysis unit compares the real-time measured data with a preset threshold value; when the real-time measurement data meet the preset alarm condition, the alarm unit sends an alarm signal to the remote monitoring host through the communication unit.
7. The method for monitoring the nuclear capacity during the remote charging and discharging of the storage battery according to claim 6, wherein the preset threshold comprises a first threshold, a second threshold, a third threshold, a fourth threshold and a fifth threshold.
8. The method for monitoring the nuclear capacity of the storage battery during the remote charging and discharging process according to claim 7, wherein the alarm condition is at least one of the following conditions:
the charging voltage is greater than a first threshold;
the discharge voltage is less than a second threshold value;
the voltage of the single storage battery is less than a third threshold value;
the temperature value of the single storage battery is larger than a fourth threshold value;
the internal resistance of the single storage battery is larger than a fifth threshold value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111231919.8A CN114167296A (en) | 2021-10-22 | 2021-10-22 | Device and method for monitoring remote charging and discharging nuclear capacity of storage battery |
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| CN202111231919.8A CN114167296A (en) | 2021-10-22 | 2021-10-22 | Device and method for monitoring remote charging and discharging nuclear capacity of storage battery |
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Cited By (2)
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| CN116298947A (en) * | 2023-03-07 | 2023-06-23 | 中国铁塔股份有限公司黑龙江省分公司 | Storage battery nuclear capacity monitoring device |
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