Storage battery safety monitoring system and method of floating type offshore wind plant booster station

Abstract

The invention discloses a storage battery safety monitoring system and method for a floating type offshore wind plant booster station, and relates to the technical field of storage battery safety monitoring. The display module, the memory, the communication module, the electrolyte monitoring module, the maintenance operation module, the data processing module, the storage battery state monitoring module and the storage battery charging module are electrically connected with the master controller; and the electrolyte monitoring module is used for monitoring the liquid level change of electrolyte in the storage battery and the like. The liquid level change of electrolyte in the storage battery can be monitored, and normal operation of the battery is ensured; appropriate charge and discharge cycles are carried out on the storage battery, active substances in the storage battery are activated, the capacity of the storage battery is improved, degradation of the storage battery is delayed, and therefore the reliability of the backup power source is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery maintenance, and in particular relates to a battery safety monitoring system and method for a floating offshore wind farm booster station. Background Art

[0002] With the continuous increase in the capacity of wind turbines and the restrictions on offshore wind farms due to policies and wind resources, offshore wind farms are gradually developing from offshore to deep sea and offshore, and the construction of floating offshore wind farms has become one of the important development trends. The floating offshore wind farm booster station is an important facility connecting the floating offshore wind turbines and the land power grid. It converts the electric energy generated by the floating wind turbines located in the deep sea into high-voltage direct current or alternating current, which is then transmitted to the land substation via submarine cables and then converted into a grid voltage suitable for transmission to consumers through a transformer.

[0003] Floating offshore wind farm booster stations are similar to offshore wind farm booster stations. They usually use large battery packs as backup power sources for secondary equipment rooms, lighting, etc. The batteries are usually large lead-acid batteries, which may be unstable during charging. The batteries in offshore wind farm booster stations are easily affected by environmental factors during the charging process, such as temperature, humidity, wind speed, etc. These factors will affect the chemical reaction rate of the battery, resulting in unstable charging.

[0004] If the battery is in poor condition, such as battery aging, damage or over-discharge, it may also lead to unstable charging. In severe cases, it may cause battery damage or even fire. Moreover, since floating offshore wind farms are farther from the shore, it is more difficult to maintain related equipment. In order to reduce maintenance costs and detect operating problems in a timely manner, it is necessary to monitor and maintain the batteries. Summary of the invention

[0005] The purpose of the present invention is to solve the defects in the prior art and to provide a battery safety monitoring system and method for a floating offshore wind farm booster station.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A battery safety monitoring system for a floating offshore wind farm booster station includes a master controller, and a display module, a memory, a communication module, an electrolyte monitoring module, a maintenance operation module, a data processing module, a battery status monitoring module, and a battery charging module electrically connected to the master controller; The electrolyte monitoring module is used to monitor the changes in the electrolyte level inside the battery; The maintenance operation module is used to perform appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activate the active substances inside the battery, increase the battery capacity, and perform maintenance to delay the deterioration of the battery; The data processing module is used to process the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module and display it through the display module; The battery status monitoring module is used to monitor the battery capacity, voltage, current, and temperature in real time during operation; The battery charging module is used to alternately charge the battery to keep the battery healthy and extend the battery life.

[0007] A further improvement of the present invention is that the electrolyte monitoring module includes a sub-controller, an indicator light, a liquid level sensor and an alarm, the sub-controller is electrically connected to the main controller, the indicator light, the liquid level sensor and the alarm are all electrically connected to the sub-controller, and the liquid level sensor is installed inside the battery.

[0008] A further improvement of the present invention is that the maintenance operation module includes a sub-controller 2, a time-controlled switch 1, an indicator light 2, a cold air system, a charging circuit, a discharging circuit and a voltage stabilizing circuit, the sub-controller 2 is electrically connected to the main controller, the time-controlled switch 1, the indicator light 2, the cold air system, the charging circuit, the discharging circuit and the voltage stabilizing circuit are all electrically connected to the sub-controller 2, and the charging circuit, the discharging circuit and the voltage stabilizing circuit are all electrically connected to the battery.

[0009] A further improvement of the present invention is that the data processing module includes sub-controller three, indicator light three, alarm two and digital signal analysis and processing module, fault diagnosis unit and data collector, sub-controller three is electrically connected to the main controller, and indicator light three, alarm two, digital signal analysis and processing module, fault diagnosis unit and data collector are all electrically connected to sub-controller three.

[0010] A further improvement of the present invention is that the battery status monitoring module includes a sub-controller four, an indicator light four, a time-controlled switch two, a voltage sensor, a current sensor and a temperature sensor, the sub-controller four is electrically connected to the main controller, and the indicator light four, the time-controlled switch two, the voltage sensor, the current sensor and the temperature sensor are all electrically connected to the sub-controller four.

[0011] A further improvement of the present invention is that the voltage sensor, current sensor and temperature sensor are all electrically connected to the data collector.

[0012] A further improvement of the present invention is that the battery charging module includes a sub-controller five, a time-controlled switch three, a charger and a relay, the sub-controller five is electrically connected to the main controller, and the time-controlled switch three, the charger and the relay are all electrically connected to the sub-controller five.

[0013] A battery safety monitoring method for a floating offshore wind farm booster station, comprising: The electrolyte monitoring module monitors the changes in the electrolyte level inside the battery; The maintenance operation module performs appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activates the active substances inside the battery, increases the battery capacity, and performs maintenance to delay the deterioration of the battery; The data processing module processes the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module and displays it through the display module; The battery status monitoring module monitors the battery capacity, voltage, current, and temperature in real time during operation; The battery charging module charges the batteries alternately to keep the batteries healthy and extend their lifespan; The main controller respectively controls the electrolyte monitoring module, the maintenance operation module, the data processing module, the battery status monitoring module and the battery charging module in real time.

[0014] A further improvement of the present invention is that the master controller also interacts with a monitoring station on land via a communication module.

[0015] A further improvement of the present invention is that it also includes: a memory stores data measured by the battery status monitoring module.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects: The present invention provides a battery safety monitoring system and method for a floating offshore wind farm booster station, which can monitor the changes in the electrolyte level inside the battery. When the electrolyte level drops to a certain critical point, an alarm can be used to remind the battery to charge, or to check whether the battery is damaged and causes electrolyte leakage, so as to ensure the normal operation of the battery. The maintenance operation module can perform appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module. When the battery needs maintenance, the maintenance operation module will execute the corresponding charge and discharge cycle strategy, including implementing equipotential charge and discharge, deep charge and discharge, etc. as needed. By performing these cycles on the battery, the active substances inside the battery can be activated, the capacity of the battery can be increased, and the degradation of the battery can be delayed, thereby improving the reliability of the backup power supply; the battery status monitoring module will continuously monitor the working status of the battery such as current, voltage, temperature, etc., and transmit the monitoring results to the data processing module. The data processing module processes and analyzes the monitoring results and determines the working strategy of the maintenance operation module according to different monitoring data. The battery charging module is used to alternately charge the battery to keep the battery healthy and extend the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 is a system diagram of the present invention; Figure 2 is a schematic diagram of an electrolyte monitoring module of the present invention; Figure 3 is a schematic diagram of a maintenance operation module of the present invention; Figure 4 is a schematic diagram of a data processing module of the present invention; Figure 5 is a schematic diagram of a battery status monitoring module of the present invention; Figure 6 It is a schematic diagram of a battery charging module of the present invention. DETAILED DESCRIPTION

[0019] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0020] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0022] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0023] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] Example 1 Reference Figure 1-6 The present invention provides a battery safety monitoring system for a floating offshore wind farm booster station, comprising a display module, a memory, a communication module, a master controller, an electrolyte monitoring module, a maintenance operation module, a data processing module, a battery status monitoring module, and a battery charging module; the display module, the memory, the communication module, the electrolyte monitoring module, the maintenance operation module, the data processing module, the battery status monitoring module, and the battery charging module are all electrically connected to the master controller.

[0027] Among them, the electrolyte monitoring module is used to monitor the changes in the electrolyte level inside the battery; the maintenance operation module is used to perform appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activate the active substances inside the battery, increase the battery capacity, and perform maintenance to delay the degradation of the battery; the data processing module is used to process the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module and display it through the display module; the battery status monitoring module is used to monitor the battery capacity, voltage, current, and temperature in real time during the working state; the battery charging module is used to alternately charge the battery to keep the battery healthy and extend the battery life.

[0028] In this embodiment, the data measured by the battery status monitoring module will be displayed through the display module after being processed by the data processing module.

[0029] In this embodiment, the main controller is used to perform overall control of sub-controllers one to five respectively, and can control the data content displayed on the display module; the memory is used to store the data measured by the battery status monitoring module; the communication module adopts remote communication technology, and the main controller can interact with the monitoring station on land through the communication module.

[0030] In this embodiment, the electrolyte monitoring module is used to monitor the changes in the electrolyte level inside the battery; the electrolyte monitoring module includes a sub-controller 1, an indicator light 1, a liquid level sensor and an alarm 1. The sub-controller 1 is electrically connected to the main controller, and the indicator light 1, the liquid level sensor and the alarm 1 are all electrically connected to the sub-controller 1. The liquid level sensor is installed inside the battery. The sub-controller 1 is used to control the indicator light 1, the liquid level sensor and the alarm 1. The indicator light 1 is used to display the working status of the electrolyte monitoring module. The liquid level sensor is used to detect the electrolyte level. When the liquid level exceeds the limit value, the liquid level sensor transmits a signal to the alarm 1, and the alarm 1 issues an alarm.

[0031] When the battery is charging, the oxygen released by the positive plate will combine with the hydrogen ions on the negative plate to form water molecules. At the same time, the lead compounds on the negative plate will be converted into lead acid, the volume of the electrolyte will increase, and the electrolyte height will also increase slightly. When the battery is discharging, the hydrogen ions released by the negative plate will combine with the oxygen molecules on the positive plate to form water. At the same time, the lead acid on the positive plate will be reduced to lead compounds, the volume of the electrolyte will decrease, and the electrolyte height will also decrease slightly.

[0032] Therefore, an appropriate liquid level sensor is installed in the battery. The sensor can measure the height of the electrolyte to reflect the charging status of the battery. As the battery is charged and discharged, the height of the electrolyte will change. Then, the sensor needs to be connected to the sub-controller to monitor the electrolyte level in real time. When the electrolyte level drops to a certain critical point, an alarm can be used to remind the operator to charge the battery, or to check whether the battery is damaged, resulting in electrolyte leakage, to ensure the normal operation of the battery.

[0033] In this embodiment, the maintenance operation module is used to perform appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activate the active substances inside the battery, increase the battery capacity, and perform maintenance to delay the degradation of the battery; the maintenance operation module includes sub-controller 2, time control switch 1, indicator light 2, cold air system, charging circuit, discharge circuit, and voltage stabilizing circuit, sub-controller 2 is electrically connected to the main controller, time control switch 1, indicator light 2, cold air system, charging circuit, discharge circuit, and voltage stabilizing circuit are all electrically connected to sub-controller 2, and the charging circuit, discharge circuit, and voltage stabilizing circuit are all electrically connected to the battery.

[0034] In this embodiment, the cold air system is used to cool the battery. The sub-controller 2 can perform appropriate charge and discharge cycles on the battery through the charging circuit and the discharging circuit to activate the active materials inside the battery, increase the battery capacity, and delay the degradation of the battery. The time switch 1 is used to perform timed charge and discharge cycles on the battery.

[0035] In this embodiment, the data processing module is used to process the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module; the data processing module includes sub-controller three, indicator light three, alarm two, digital signal analysis and processing module, fault diagnosis unit, and data collector. Sub-controller three is electrically connected to the main controller, and indicator light three, alarm two, digital signal analysis and processing module, fault diagnosis unit, and data collector are all electrically connected to sub-controller three; sub-controller three is electrically connected to the main controller to control the work of the data processing module, indicator light three displays the working status of the data processing module, the data collector is responsible for the collection of various monitoring data, the digital signal analysis and processing module reprocesses the various data collected by the collector, and the fault diagnosis unit analyzes the processed data. When the data exceeds the limit, an alarm is issued through alarm two.

[0036] In this embodiment, the battery status monitoring module is used to monitor the battery capacity, voltage, current and temperature in the working state in real time; The battery status monitoring module includes a sub-controller four, an indicator light four, a time switch two, a voltage sensor, a current sensor and a temperature sensor. The sub-controller four is electrically connected to the main controller, and the indicator light four, the time switch two, the voltage sensor, the current sensor and the temperature sensor are all electrically connected to the sub-controller four; the sub-controller four is electrically connected to the main controller to control the operation of the battery status monitoring module. The time switch two is used to control the monitoring time. The voltage sensor, the current sensor and the temperature sensor are convenient for monitoring the current, voltage and temperature of the battery.

[0037] The battery status monitoring module will continuously monitor the battery's current, voltage, temperature and other working conditions, and transmit the monitoring results to the data processing module. The data processing module processes and analyzes the monitoring results and determines the working strategy of the maintenance operation module based on different monitoring data.

[0038] The battery status monitoring module can adopt a variety of monitoring methods, including but not limited to current, voltage and temperature, etc. The maintenance operation module can adopt a variety of charge and discharge cycle strategies, including but not limited to isopotential charge and discharge and deep charge and discharge, etc.

[0039] When the battery needs maintenance, the maintenance operation module will execute the corresponding charge and discharge cycle strategy, including isopotential charge and discharge, deep charge and discharge, etc. By performing these cycles on the battery, the active substances inside the battery can be activated, the battery capacity can be increased, and the battery degradation can be delayed, thereby improving the reliability of the backup power supply.

[0040] The voltage sensor, current sensor and temperature sensor are all electrically connected to the data acquisition device. The temperature sensor is used to monitor the temperature change of the battery, the voltage sensor is used to monitor the voltage change of the battery, the current sensor is used to monitor the charge and discharge current of the battery, and the indicator light four is used to indicate the operating status of the battery.

[0041] In this embodiment, the battery charging module is used to alternately charge the battery to keep the battery healthy and extend the battery life; the battery charging module includes a sub-controller 5, a time-controlled switch 3, a charger, and a relay. The sub-controller 5 is electrically connected to the main controller, and the time-controlled switch 3, the charger, and the relay are all electrically connected to the sub-controller 5. The sub-controller 5 is electrically connected to the main controller to control the operation of the battery charging module, the relay controls the shutdown of the circuit where the battery is located, the charger is used to control the charging of the battery, and the time-controlled switch 3 controls the charging time.

[0042] One battery corresponds to one relay, and the relay controls the shutdown of the circuit where the battery is located.

[0043] When performing alternate charging, first connect a group of batteries to the charger; then set the charger to AC charging mode, that is, continuously and periodically convert the power supply into the DC power required by the battery; then set the appropriate charging current and charging time according to the design of the charger, and after charging is completed, turn off the circuit of this group of batteries through the relay, and turn on the circuit of another group of batteries, and connect them to the charger at the same time to continue alternate charging; then in the entire charging cycle, each battery will participate in the charging and discharging work one by one, thereby achieving a certain degree of balance; finally, it is necessary to master the timing, time and current of charging according to the brand and model of the battery to prevent overcharging or over-discharging due to exceeding the charging cycle for a long time, thereby increasing the service life of the battery.

[0044] Example 2 The present invention provides a battery safety monitoring method for a floating offshore wind farm booster station, comprising: The electrolyte monitoring module monitors the changes in the electrolyte level inside the battery; The maintenance operation module performs appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activates the active substances inside the battery, increases the battery capacity, and performs maintenance to delay the deterioration of the battery; The data processing module processes the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module and displays it through the display module; The battery status monitoring module monitors the battery capacity, voltage, current, and temperature in real time during operation; The battery charging module charges the batteries alternately to keep the batteries healthy and extend their lifespan; The main controller respectively controls the electrolyte monitoring module, the maintenance operation module, the data processing module, the battery status monitoring module and the battery charging module in real time.

[0045] In this embodiment, the master controller also interacts with the monitoring station on land through the communication module.

[0046] In this embodiment, it also includes: a memory storing data measured by the battery status monitoring module.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A battery safety monitoring system for a floating offshore wind farm booster station, characterized in that: It includes a main controller, and a display module, a memory, a communication module, an electrolyte monitoring module, a maintenance operation module, a data processing module, a battery status monitoring module and a battery charging module electrically connected to the main controller; The electrolyte monitoring module is used to monitor the changes in the electrolyte level inside the battery; The maintenance operation module is used to perform appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activate the active substances inside the battery, increase the battery capacity, and perform maintenance to delay the deterioration of the battery; The data processing module is used to process the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module and display it through the display module; The battery status monitoring module is used to monitor the battery capacity, voltage, current, and temperature in real time during operation; The battery charging module is used to alternately charge the battery to keep the battery healthy and extend the battery life.

2. A battery safety monitoring system for a floating offshore wind farm booster station according to claim 1, characterized in that: The electrolyte monitoring module includes a sub-controller, an indicator light, a liquid level sensor and an alarm. The sub-controller is electrically connected to the main controller. The indicator light, the liquid level sensor and the alarm are all electrically connected to the sub-controller. The liquid level sensor is installed inside the battery.

3. A battery safety monitoring system for a floating offshore wind farm booster station according to claim 1, characterized in that: The maintenance operation module includes a sub-controller 2, a time-controlled switch 1, an indicator light 2, a cold air system, a charging circuit, a discharging circuit and a voltage stabilizing circuit. The sub-controller 2 is electrically connected to the main controller. The time-controlled switch 1, the indicator light 2, the cold air system, the charging circuit, the discharging circuit and the voltage stabilizing circuit are all electrically connected to the sub-controller 2. The charging circuit, the discharging circuit and the voltage stabilizing circuit are all electrically connected to the battery.

4. The battery safety monitoring system for a floating offshore wind farm booster station according to claim 1 is characterized in that: The data processing module includes sub-controller three, indicator light three, alarm two, digital signal analysis and processing module, fault diagnosis unit and data collector. Sub-controller three is electrically connected to the main controller, and indicator light three, alarm two, digital signal analysis and processing module, fault diagnosis unit and data collector are all electrically connected to sub-controller three.

5. A battery safety monitoring system for a floating offshore wind farm booster station according to claim 4, characterized in that: The battery status monitoring module includes a sub-controller four, an indicator light four, a time-controlled switch two, a voltage sensor, a current sensor and a temperature sensor. The sub-controller four is electrically connected to the main controller, and the indicator light four, the time-controlled switch two, the voltage sensor, the current sensor and the temperature sensor are all electrically connected to the sub-controller four.

6. A battery safety monitoring system for a floating offshore wind farm booster station according to claim 5, characterized in that: The voltage sensor, current sensor and temperature sensor are all electrically connected to the data collector.

7. The battery safety monitoring system for a floating offshore wind farm booster station according to claim 1 is characterized in that: The battery charging module comprises a sub-controller five, a time-controlled switch three, a charger and a relay. The sub-controller five is electrically connected to the main controller, and the time-controlled switch three, the charger and the relay are all electrically connected to the sub-controller five.

8. A battery safety monitoring method for a floating offshore wind farm booster station, characterized in that: include: The electrolyte monitoring module monitors the changes in the electrolyte level inside the battery; The maintenance operation module performs appropriate charge and discharge cycles on the battery according to the detection results of the battery status monitoring module, activates the active substances inside the battery, increases the battery capacity, and performs maintenance to delay the deterioration of the battery; The data processing module processes the monitoring data obtained by the battery status monitoring module to determine the working strategy of the maintenance operation module and displays it through the display module; The battery status monitoring module monitors the battery capacity, voltage, current, and temperature in real time during operation; The battery charging module charges the batteries alternately to keep the batteries healthy and extend their lifespan; The main controller respectively controls the electrolyte monitoring module, the maintenance operation module, the data processing module, the battery status monitoring module and the battery charging module in real time.

9. A battery safety monitoring method for a floating offshore wind farm booster station according to claim 8, characterized in that: The master controller also interacts with monitoring stations on land through the communication module.

10. A battery safety monitoring method for a floating offshore wind farm booster station according to claim 8, characterized in that: Also includes: The memory stores the data measured by the battery status monitoring module.

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