A battery detection system for an emergency power supply vehicle

Abstract

The present disclosure relates to the technical field of emergency power supply vehicles, in particular to a storage battery detection system for an emergency power supply vehicle, comprising: a single battery monitoring module for monitoring the state of the storage battery, collecting data such as voltage, internal resistance and temperature of the storage battery; a current temperature monitoring module for monitoring the overall state of the storage battery pack, collecting data such as charging and discharging current and ambient temperature of the storage battery pack; a control processing module for reading, analyzing and storing the data collected by the single battery monitoring module and the current temperature monitoring module respectively. The single battery monitoring module and the storage battery have a one-to-one correspondence relationship, and the current temperature monitoring module and the storage battery pack have a one-to-one correspondence relationship; the storage battery pack comprises at least one storage battery.

Description

Technical Field

[0001] This disclosure relates to the field of emergency power vehicle technology, and specifically to a battery testing system for emergency power vehicles. Background Technology

[0002] Existing emergency power vehicles, especially 10.5kV gas turbine-type emergency power vehicles, often require sufficient power support during startup and control. This power support typically comes from the unit's own backup batteries. When the battery voltage is low or other faults occur, the emergency power vehicle may fail to start, start unsuccessfully, or experience an alarm shutdown. Therefore, improving battery reliability is crucial for gas turbine-type emergency power vehicles. Currently, battery testing and maintenance primarily rely on manual, periodic measurements of voltage, internal resistance, and temperature. This manual method is time-consuming, labor-intensive, and poses certain safety hazards. Furthermore, because manual testing can only be performed periodically, it cannot provide real-time monitoring of battery operating data and health status. Summary of the Invention

[0003] To address the problems existing in the prior art, this disclosure proposes a battery testing system for emergency power vehicles, aiming to solve at least one of the aforementioned problems. The technical solution adopted in this disclosure is as follows: A battery testing system for emergency power vehicles includes: The single-battery monitoring module is used to monitor the status of the battery and collect data such as the battery's voltage, internal resistance, and temperature. The current and temperature monitoring module is used to monitor the overall status of the battery pack and collect data such as the charging and discharging current and ambient temperature of the battery pack. The control and processing module is used to read, analyze, process, and store the data collected by the single battery monitoring module and the current and temperature monitoring module, respectively.

[0004] Preferably, the single-cell monitoring module corresponds to the battery in a one-to-one relationship, and the current-temperature monitoring module corresponds to the battery pack in a one-to-one relationship. The battery pack includes at least one battery.

[0005] Preferably, the battery pack includes 1 to 6 batteries.

[0006] In practice, the battery pack may include 1 to 6 batteries, thereby enabling the control processing module to monitor multiple batteries, especially suitable for the number of batteries in the battery pack of gas turbine-type emergency power vehicles with a voltage of 10.5kV and a power of 1600kW.

[0007] Preferably, the number of current and temperature monitoring modules is two, and the two current and temperature monitoring modules each correspond to a set of battery packs.

[0008] Preferably, the two battery packs are a starting battery pack and a control battery pack, respectively. The starting battery pack is used to provide starting power for the generator set of the emergency power vehicle; The control battery pack is used to provide control power to the generator set of the emergency power vehicle.

[0009] Preferably, the single-battery monitoring module and the current-temperature monitoring module are respectively connected to the control processing module.

[0010] Preferably, the control processing module further includes: The display unit is used to display the data collected by the single battery monitoring module and the current and temperature monitoring module respectively.

[0011] Preferably, the display unit is an LED display screen.

[0012] Preferably, the single-battery monitoring module and the current-temperature monitoring module are connected to the control processing module.

[0013] Preferably, the control processing module is further connected to a server.

[0014] The beneficial effects of this disclosure are as follows: The battery testing system for emergency power vehicles provided by this disclosure can be used to monitor the individual cell voltage, temperature, internal resistance, ambient temperature of the entire battery pack, and charging and discharging current of the batteries in the emergency power vehicle. It realizes online real-time monitoring of battery pack operating data, and can not only monitor and alarm the battery pack operating status in real time, but also avoid the safety hazards of manual inspection and greatly reduce the occurrence of power vehicle operation failures, thereby improving the power generation efficiency of the emergency power vehicle.

[0015] This invention features a simple structure and convenient operation, enabling online monitoring of batteries in emergency power vehicles such as gas turbine-type vehicles. It can conveniently and quickly collect data on battery voltage, internal resistance, temperature, battery pack charging and discharging current, and ambient temperature, avoiding the need for regular manual inspections. It can also prevent overcharging and discharging of generator set batteries or excessively high operating temperatures, reducing safety hazards and improving the power generation efficiency of emergency power vehicles.

[0016] Compared with the prior art, this disclosure has the following advantages: (A) Comprehensive and High-Precision Monitoring: The single-cell monitoring module collects data parameters such as voltage, internal resistance, and temperature for each battery cell. The current-temperature monitoring module comprehensively monitors parameters such as charging and discharging current and ambient temperature of the battery pack. The measurement accuracy is high, which can comprehensively reflect the health status and operating dynamics of the battery. At the same time, considering the coupling effect of ambient temperature and charging and discharging current, it provides more comprehensive data support for battery SOH assessment.

[0017] (B) Real-time and intelligent: It realizes online real-time monitoring of battery operation data. The control and processing module can analyze the data in real time through built-in algorithms, which can quickly identify potential faults such as abnormal voltage, sudden change in internal resistance, and poor consistency. The early warning module can issue audible and visual warnings in a timely manner to avoid the emergency power vehicle from failing to start or shutting down due to battery failure. At the same time, it can predict the battery degradation cycle based on historical data trend analysis, providing a scientific basis for operation and maintenance, and solving the problems of poor timeliness and lack of predictive ability of manual inspection.

[0018] (C) Safety and Convenience: No manual on-site contact with the battery is required for testing, avoiding safety risks such as electric shock and short circuits; each module can adopt pluggable connection and low power consumption design, making installation and maintenance convenient and adaptable to the on-board environment of emergency power vehicles; the LED touch screen of the control and processing module supports local data viewing and parameter configuration, and the client management platform on the server side supports remote centralized management, enabling large-scale operation and maintenance of multiple emergency power vehicles, greatly improving operation and maintenance efficiency and reducing labor costs.

[0019] (D) Adaptability and Scalability: The battery pack can support configurations of 1 to 6 batteries, flexibly adapting to the battery pack structure of emergency power vehicles with different power levels; the control processing module supports multiple communication protocols and CT interface expansion, allowing the number of monitoring modules to be increased according to actual needs; the lightning protection module further enhances the system's applicability and reliability in complex environments; the server-side big data analysis function can continuously optimize the accuracy of SOH assessment and fault diagnosis as monitoring data accumulates, giving the system good scalability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1This is a schematic diagram illustrating the implementation of the battery testing system for emergency power vehicles according to an embodiment of this disclosure. Detailed Implementation

[0022] The present disclosure will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0023] The following detailed descriptions are exemplary and intended to provide further detailed explanation of this disclosure. Unless otherwise specified, all technical terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure.

[0024] like Figure 1 As shown, a battery testing system for an emergency power vehicle includes: The single-battery monitoring module 100 is used to monitor the status of the battery and collect data such as the battery's voltage, internal resistance, and temperature. The current and temperature monitoring module 200 is used to monitor the overall status of the battery pack and collect data such as the charging and discharging current and ambient temperature of the battery pack. The control processing module 300 is used to read, analyze, process, and store the data collected by the single battery monitoring module 100 and the current and temperature monitoring module 200, respectively.

[0025] Furthermore, the single-battery monitoring module 100 has a one-to-one correspondence with the storage battery, and the current and temperature monitoring module 200 has a one-to-one correspondence with the storage battery pack. The battery pack includes at least one battery.

[0026] During implementation, parameters of the control processing module 300 can be set to adjust the detection thresholds of the battery and battery pack, and modify the communication parameters of the control processing module 300. When the detected data exceeds the corresponding threshold, the system can issue an alarm and record the alarm information.

[0027] In one feasible embodiment, the single-cell monitoring module 100 may include a voltage acquisition unit, an internal resistance acquisition unit, a temperature acquisition unit, and a ripple detection unit, etc.

[0028] Furthermore, the voltage acquisition unit employs a differential amplifier circuit to acquire the terminal voltage of the corresponding battery, with a measurement accuracy of ≤±0.01V.

[0029] Furthermore, the internal resistance acquisition unit adopts the AC injection method, which injects a constant AC signal of 1kHz-10kHz into the battery, detects the AC impedance to calculate the internal resistance of the battery, and the measurement accuracy is ≦±2%.

[0030] Furthermore, the temperature acquisition unit uses an NTC thermistor sensor, which is attached to the battery casing and can be used to acquire the temperature of a single battery cell, with a measurement range of -40℃ to 85℃ and an accuracy of ≤±0.5℃.

[0031] Furthermore, the ripple detection unit is used to detect the voltage ripple coefficient during the charging and discharging process of the battery and identify ripple abnormalities caused by internal polarization or poor contact of the battery.

[0032] In one feasible embodiment, the battery interface of each single battery monitoring module 100 can be connected to the positive and negative terminals of the corresponding battery, and the communication interface can be connected in parallel to the control processing module 300.

[0033] Furthermore, the battery pack includes 1 to 6 batteries. In implementation, the battery pack may include 1 to 6 batteries, thereby enabling the control processing module 300 to monitor multiple batteries, thus better adapting to the number of batteries in the battery pack of gas turbine-type emergency power vehicles with a voltage of 10.5kV and a power of 1600kW.

[0034] Furthermore, there are two current-temperature monitoring modules 200, and each of the two current-temperature monitoring modules 200 corresponds to a battery pack.

[0035] Furthermore, the two battery packs are a starting battery pack and a control battery pack, respectively; The starting battery pack is used to provide starting power for the generator set of the emergency power vehicle; The control battery pack is used to provide control power to the generator set of the emergency power vehicle.

[0036] Furthermore, the two current-temperature monitoring modules 200 can be powered by the control processing module 300. The two current-temperature monitoring modules 200 can be connected to the control processing module 300 in parallel.

[0037] Furthermore, the single battery monitoring module 100 and the current and temperature monitoring module 200 are respectively connected to the control processing module 300.

[0038] In one feasible embodiment, the current-temperature monitoring module 200 may include a current acquisition unit, an ambient temperature acquisition unit, a cycle counting unit, and a volatility calculation unit, etc.

[0039] Furthermore, the current acquisition unit adopts a closed-loop Hall current sensor, which is connected to the charge and discharge current test line through the CT interface to acquire the charge and discharge current of the battery pack. The measurement range is -500A to 500A, and the accuracy is ≤±1%.

[0040] Furthermore, the ambient temperature acquisition unit uses a waterproof temperature probe, which is installed inside the battery pack enclosure to collect ambient temperature data to compensate for the impact of charging and discharging current on battery performance.

[0041] Furthermore, the cycle counting unit is used to record the number of charge-discharge cycles of the battery pack in order to evaluate the cycle life of the battery.

[0042] Furthermore, the volatility calculation unit is used to calculate the instantaneous volatility of the charging and discharging current and identify abnormal current fluctuations caused by poor line contact or charging and discharging module failure.

[0043] In one feasible embodiment, the control processing module 300 further includes: The display unit is used to display the data collected by the single battery monitoring module 100 and the current and temperature monitoring module 200 respectively.

[0044] Furthermore, the display unit is an LED display screen. The LED display screen can be used to display the voltage, internal resistance, and temperature of each individual battery cell, as well as the charging and discharging current and ambient temperature of the battery pack in real time.

[0045] In one feasible embodiment, the control processing module 300 may further include a data processing unit, a storage unit, a communication unit, and a parameter configuration unit.

[0046] Furthermore, the data processing unit employs a microcontroller with an ARM Cortex-M4 core to perform real-time analysis of the collected data, including: Individual cell consistency judgment: Calculate the voltage difference, temperature difference and internal resistance difference of each battery in the same battery pack. When the difference exceeds the preset threshold (such as voltage difference ≥ 0.3V, temperature difference ≥ 5℃, internal resistance difference ≥ 30%), it is judged as an inconsistency abnormality. State of Health (SOH) assessment: Based on voltage, internal resistance, cycle count and temperature data, the battery's state of health value (0%-100%) is calculated using a preset algorithm. For example, if SOH≦80%, it is determined to be a performance degradation, and if SOH≦60%, it is determined to be a replacement, thereby avoiding safety risks caused by battery aging and other reasons. Fault warning judgment: When the collected parameters exceed the preset threshold, or the SOH value is lower than the set standard, the corresponding fault code is generated, including abnormal voltage, excessive internal resistance, excessive temperature, poor consistency, abnormal charging and discharging current, etc.

[0047] Furthermore, the storage unit uses an SD card with a capacity of ≥8GB to store historical monitoring data and fault records for a duration of more than one year, thereby facilitating data export.

[0048] Furthermore, the communication unit supports multiple communication protocols such as UART, RS485, Ethernet and GPRS / 4G, enabling local communication with the single battery monitoring module 100 and the current and temperature monitoring module 200, as well as remote communication with the server 400.

[0049] Furthermore, the parameter configuration unit supports remote modification of detection thresholds, communication parameters, SOH evaluation algorithm parameters, etc., via touch screen or server 400.

[0050] In one feasible embodiment, the single battery monitoring module 100 and the current and temperature monitoring module 200 are connected to the control processing module 300.

[0051] Furthermore, the wiring between the single battery monitoring module 100, the current and temperature monitoring module 200, and the control processing module 300 adopts a ring connection.

[0052] Furthermore, the control processing module 300 is also connected to the server 400.

[0053] In implementation, the single-battery monitoring module 100 and the current-temperature monitoring module 200 can be connected in parallel to the control processing module 300 via a UART bus or similar means. After reading data from the single-battery monitoring module 100 and the current-temperature monitoring module 200, the control processing module 300 can upload the data to the server via RS485 or a network port, allowing for centralized querying and management on the server side 400.

[0054] In one feasible embodiment, the control processing module 300 may be configured with a plurality of CT interfaces, the CT interfaces being used to connect charge and discharge current test leads.

[0055] Furthermore, the charge / discharge current test line may be equipped with an ambient temperature monitoring probe.

[0056] Furthermore, the ambient temperature monitoring probe is connected to a charge / discharge current transformer for monitoring the charge / discharge current.

[0057] Furthermore, the CT interface, charge / discharge current test line, ambient temperature monitoring probe, charge / discharge current, and battery pack are preferably in a one-to-one relationship.

[0058] In one feasible embodiment, the detection system further includes: The lightning protection module 500 is located at the communication interface between the control processing module 300 and the server 400, as well as at the power interface of the single battery monitoring module 100 and the current and temperature monitoring module 200, to prevent damage that may be caused by lightning strikes or voltage surges.

[0059] In summary, this disclosure provides a battery testing system for emergency power vehicles, which can monitor the individual cell voltage, temperature, internal resistance, ambient temperature of the entire battery pack, and charging / discharging current of the batteries in the emergency power vehicle. It realizes online real-time monitoring of battery pack operating data, and can not only monitor and alarm the battery pack operating status in real time, but also avoid the safety hazards of manual inspection, greatly reduce the occurrence of power vehicle operation failures, and improve the power generation efficiency of the emergency power vehicle.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and not to limit them. Although this disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this disclosure. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this disclosure should be covered within the protection scope of the claims of this disclosure.

Claims

1. A battery testing system for an emergency power vehicle, characterized in that, include: A single-battery monitoring module (100) is used to monitor the status of the battery and collect the battery's voltage, internal resistance, and temperature. The current and temperature monitoring module (200) is used to monitor the overall status of the battery pack and collect the charging and discharging current and ambient temperature of the battery pack. The control processing module (300) is used to read, analyze, process, and store the data collected by the single battery monitoring module (100) and the current and temperature monitoring module (200).

2. The battery testing system for emergency power vehicles as described in claim 1, characterized in that, The single-cell monitoring module (100) has a one-to-one correspondence with the battery, and the current-temperature monitoring module (200) has a one-to-one correspondence with the battery pack. The battery pack includes at least one battery.

3. The battery testing system for emergency power vehicles as described in claim 2, characterized in that, The battery pack comprises 1 to 6 batteries.

4. The battery testing system for emergency power vehicles as described in claim 2, characterized in that, The number of current and temperature monitoring modules (200) is two, and the two current and temperature monitoring modules (200) correspond to a battery pack respectively.

5. The battery testing system for emergency power vehicles as described in claim 4, characterized in that, The two battery packs are a starting battery pack and a control battery pack. The starting battery pack is used to provide starting power for the generator set of the emergency power vehicle; The control battery pack is used to provide control power to the generator set of the emergency power vehicle.

6. The battery testing system for emergency power vehicles as described in claim 1, characterized in that, The single-battery monitoring module (100) and the current-temperature monitoring module (200) are respectively connected to the control processing module (300).

7. The battery testing system for emergency power vehicles as described in claim 1, characterized in that, The control processing module (300) further includes: The display unit is used to display the data collected by the single battery monitoring module (100) and the current and temperature monitoring module (200).

8. The battery testing system for emergency power vehicles as described in claim 7, characterized in that, The display unit is an LED display screen.

9. The battery testing system for emergency power vehicles as described in claim 1, characterized in that, The single-cell monitoring module (100) and the current-temperature monitoring module (200) are connected to the control processing module (300); The control processing module (300) is also connected to the server 400.

10. The battery testing system for an emergency power vehicle as described in claim 1, characterized in that, The control processing module (300) is equipped with several CT interfaces; The CT interface is used to connect the charge / discharge current test line; The charge / discharge current test line is equipped with an ambient temperature monitoring probe. The ambient temperature monitoring probe is connected to a charge / discharge current transformer for monitoring the charge / discharge current.

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