Energy storage cabinet control cabinet facilitating heat dissipation and control system thereof

Abstract

The application relates to the technical field of energy storage cabinet control cabinets, and discloses an energy storage cabinet control cabinet convenient for heat dissipation and a control system thereof, which comprises a data collection module and a parameter setting module; the integrated sensor is used for collecting temperature parameters at four monitoring points in the control cabinet body; the data collection module is used for collecting the state of charge of the control cabinet, the energy conversion efficiency in the charging and discharging process, and the voltage difference parameters between capacitors; the main control computer is used for analyzing and judging whether the control cabinet adopts the inward or outward heat dissipation of the heat dissipation fan according to the parameter information of the integrated sensor and the data collection module. The application detects the temperature distribution condition of the control cabinet through the four monitoring points at different positions in the control cabinet, analyzes and judges the design of whether the control cabinet adopts the inward or outward heat dissipation of the heat dissipation fan according to the temperature distribution condition and the pressure bearing degree of the control cabinet, and the heat dissipation control scheme can effectively solve the problem of heat accumulation in the control cabinet.

Description

Technical Field

[0001] This invention relates to the field of energy storage cabinet control cabinet technology, and in particular to an energy storage cabinet control cabinet and its control system that facilitates heat dissipation. Background Technology

[0002] The energy storage control cabinet is one of the core components of an energy storage system, responsible for managing, monitoring, and protecting all parts of the system. Its functions are extensive, covering everything from battery management and energy regulation to safety monitoring and communication. However, after continuous operation, the electronic components of the energy storage control cabinet can also experience accumulated problems.

[0003] Electronic devices require specific environmental conditions to function properly. In terms of temperature, the normal operating temperature range for electronic devices is generally -5 to +65 degrees Celsius. Beyond this range, the performance of electronic components will significantly degrade and they will not be able to operate stably, thereby affecting the stability and reliability of the system.

[0004] An existing patent discloses an electrical control system for a liquid-cooled energy storage tank (CN221748820U), belonging to the technical field of liquid-cooled energy storage tanks. It includes an energy storage tank body and a control cabinet, with the control cabinet located inside the energy storage tank body. An explosion-proof emergency lighting lamp is installed at the top interior of the energy storage tank body for internal lighting in emergency situations. An LED explosion-proof fluorescent lamp is also installed at the top interior of the energy storage tank body. However, the technology disclosed in this patent is prone to dust accumulation on the heat dissipation grilles due to the unidirectional operation of the internal cooling fan.

[0005] An existing patent (CN117042389A) discloses an immersion liquid-cooled server integrated photovoltaic energy storage and swimming pool circulating heat dissipation system in the field of server cooling technology. This system includes photovoltaic modules, an energy storage module, a grid module, an inverter module, a power control cabinet, a container, a liquid-cooled cabinet, a flow equalization plate, baffles, a server, a heat exchanger, a swimming pool, valves, and a pump. In the disclosed technology, when the control cabinet is air-conditioned in summer, cool air sinks and accumulates in the lower area of ​​the control cabinet, while heat accumulates in the upper internal area. In this case, a cooling fan can be used to dissipate heat outwards. However, in winter or during the rainy season, moisture easily accumulates in the lower area of ​​the control cabinet. Using a cooling fan to dissipate heat outwards in this situation would accelerate the aging of the electronic components inside the control cabinet. Summary of the Invention

[0006] The main technical problem solved by this invention is to provide an energy storage cabinet control cabinet and its control system that facilitates heat dissipation, thus solving the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, more specifically, a heat-dissipating energy storage cabinet control cabinet includes a control cabinet body, a trigger switch, a main control computer, an isolation power supply module, an air switch module, and an integrated sensor; the integrated sensor further includes four monitoring points disposed inside the control cabinet body;

[0008] Cooling fans are provided on both the front and rear sides of the upper area of ​​the control cabinet, and cooling grilles are provided on both the front and rear sides of the lower area of ​​the control cabinet.

[0009] The trigger switch is fixedly installed at the bottom of the control cabinet, and the main control computer and the isolation power supply module are installed side by side on the top of the trigger switch. The air switch module is located between the front and rear cooling fans.

[0010] Furthermore, the main control computer also includes a feature extraction module and a data analysis module.

[0011] Furthermore, the feature extraction module is used to extract temperature parameter information from the signals acquired by the integrated sensor.

[0012] Furthermore, the data analysis module is used to determine whether the control cabinet uses a cooling fan to dissipate heat inwards or outwards, based on the temperature monitored at four monitoring points and the pressure level of the control cabinet.

[0013] A control system for a heat-dissipating energy storage cabinet control cabinet includes a data collection module;

[0014] The integrated sensor is used to collect temperature parameters at four monitoring points inside the control cabinet.

[0015] The data collection module is used to collect the state of charge of the control cabinet, the energy conversion efficiency during charging and discharging, and the voltage difference parameters between capacitors.

[0016] The main control computer is used to analyze and determine whether the control cabinet uses a cooling fan to dissipate heat inward or outward, based on the parameter information from the integrated sensors and data collection modules.

[0017] Furthermore, the control system also includes a parameter setting module and a signal filtering module;

[0018] The parameter setting module is used to configure and adjust the operating parameters and power of the cooling fan;

[0019] The signal filtering module is used to remove noise, interference, and unwanted components from the original signal.

[0020] Furthermore, the main control computer determines whether to adjust the cooling mode of the cooling fan based on the temperature distribution and pressure level within the control cabinet. Therefore:

[0021]

[0022] In the formula, This indicates the overall condition coefficient for adjusting the cooling fan. This indicates the temperature deviation in the area above the isolated power supply module in the control cabinet. This indicates the temperature deviation in the area below the isolated power supply module in the control cabinet. This indicates the pressure resistance coefficient of the control cabinet.

[0023] Furthermore, the main control computer estimates the pressure resistance of the control cabinet based on the changes in the internal resistance, energy conversion efficiency, and voltage differences between capacitors. Therefore:

[0024]

[0025] In the formula, This indicates the pressure resistance coefficient of the control cabinet. This indicates the change in the internal resistance of the control cabinet. This indicates the energy conversion efficiency during the charging and discharging process of the energy storage cabinet. This parameter represents the voltage difference between identical capacitors in the energy storage cabinet.

[0026] Furthermore, when If the time is right, it means that the cooling fan needs to be changed to dissipate heat outwards;

[0027] when When the current cooling mode is maintained, it indicates that the current cooling method of the cooling fan will be maintained.

[0028] when If the signal is 0, it means that the cooling fan needs to be changed to provide inward cooling.

[0029] Furthermore, thermoelectric generators are installed in the heat dissipation channels of both the cooling fan and the heat dissipation grille, and these thermoelectric generators are used to provide auxiliary power to the monitoring points.

[0030] Furthermore, a humidity sensor is added to the outside of the control cabinet to monitor environmental parameters in real time. The current seasonal characteristics are determined based on the matching degree between the humidity sensor monitoring parameters and historical data and real-time environmental parameters.

[0031] This invention provides an energy storage cabinet control cabinet and its control system that facilitate heat dissipation. Compared with the prior art, the advantages achieved by this method are:

[0032] 1. This invention uses monitoring points at four different locations inside the control cabinet to detect the temperature distribution of the control cabinet. Based on the temperature distribution and pressure level of the control cabinet, it analyzes and determines whether the control cabinet adopts a design that allows the cooling fan to dissipate heat inward or outward. This heat dissipation control scheme can effectively solve the problem of heat accumulation inside the control cabinet.

[0033] 2. This invention employs a cooling fan that dissipates heat inward or outward. When the cooling fan dissipates heat inward, it can blow away the dust accumulated at the lower heat dissipation grille. When the cooling fan dissipates heat outward, it can blow away the dust accumulated at the upper heat dissipation grille. This effectively avoids the problem of dust accumulating on one side of the heat dissipation grille due to a single airflow direction, thus reducing the heat dissipation efficiency.

[0034] 3. Based on the temperature deviation of the area above the isolated power supply module in the control cabinet, the temperature deviation of the area below the isolated power supply module in the control cabinet, and the pressure level of the control cabinet, the present invention can easily and conveniently calculate the comprehensive condition coefficient for adjusting the cooling fan. Based on this comprehensive condition coefficient, it is possible to intuitively determine whether the cooling fan is dissipating heat inward or outward.

[0035] 4. In this invention, thermoelectric generators are installed in both the cooling fan and the cooling grid's heat dissipation channel. The thermoelectric generators adopt a "sandwich" structure in the airflow channel of the cooling grid, and the power supply end of the thermoelectric generators is connected to the monitoring point through a capacitor to provide auxiliary power to the monitoring point, thereby recovering energy during the heat dissipation process using the thermoelectric effect. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the front internal structure of the energy storage cabinet control cabinet in this invention;

[0037] Figure 2 This is a schematic diagram of the internal structure of the rear of the energy storage cabinet control cabinet in this invention;

[0038] Figure 3 This is a side sectional view of the energy storage cabinet control cabinet in this invention;

[0039] Figure 4 This is a schematic diagram of the control system in this invention;

[0040] Figure 5 This is a schematic diagram of the monitoring point locations in this invention;

[0041] Figure 6 In the diagram, 'a' represents a diagram of the cooling fan dissipating heat inwards, and 'b' represents a diagram of the cooling fan dissipating heat outwards.

[0042] Figure 7 The comprehensive condition coefficient w and deviation temperature in this invention Model diagram of the pressure bearing capacity s.

[0043] In the diagram: 1. Control cabinet; 2. Trigger switch; 3. Main control computer; 4. Isolated power supply module; 5. Air switch module; 6. Cooling fan; 7. Integrated sensor. Detailed Implementation

[0044] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Example 1

[0046] like Figure 1 As shown in Figure 3, according to one aspect of the present invention, a heat-dissipating energy storage cabinet control cabinet is provided, characterized in that it includes a control cabinet body 1, a trigger switch 2, a main control computer 3, an isolation power supply module 4, an air switch module 5, a cooling fan 6, and an integrated sensor 7. The isolation power supply module 4 is used for power isolation, switching operations, and connecting and disconnecting low-current circuits. The operating logic of the trigger switch 2 is as follows:

[0047] 1) When a short circuit or severe overload occurs in the circuit, the armature of the overcurrent trip unit is attracted, causing the free trip mechanism to operate and the main contacts to disconnect the main circuit.

[0048] 2) When the circuit is overloaded, the thermal element of the thermal trip unit heats up, causing the bimetallic strip to bend and push the free trip mechanism to activate, thus disconnecting the main circuit from the main contacts.

[0049] 3) When the circuit is undervoltage, the armature of the undervoltage release device is released, which also causes the free release mechanism to operate, and the main contacts disconnect the main circuit.

[0050] 4) When the shunt trip button is pressed, the armature of the shunt trip unit is attracted, causing the free trip mechanism to operate and the main contacts to disconnect the main circuit.

[0051] Example 2

[0052] like Figure 1-6 As shown, a control system for a heat-dissipating energy storage cabinet includes a data acquisition module and a parameter setting module. An integrated sensor 7 is used to collect temperature parameters at four monitoring points within the control cabinet 1. The data acquisition module collects the control cabinet's state of charge, energy conversion efficiency during charging and discharging, and voltage difference parameters between capacitors. The main control computer 3 analyzes and determines whether the control cabinet uses a cooling fan 6 for inward or outward heat dissipation based on the parameter information from the integrated sensor 7 and the data acquisition module. The control system also includes a parameter setting module and a signal filtering module. The parameter setting module configures and adjusts the operating parameters and power of the cooling fan 6. The signal filtering module removes noise, interference, and unwanted components from the original signal.

[0053] The parameter setting module is used to configure and adjust the operating parameters (such as start / stop thresholds and speed levels) and operating power (such as high / medium / low power output) of the cooling fan, and supports dynamic adjustment of the cooling strategy, such as switching the cooling direction of the fan (inward or outward) based on real-time temperature or seasonal characteristics (determined by a humidity sensor).

[0054] The parameter setting module allows input of preset parameters, such as temperature threshold (e.g., 65℃ to trigger high-speed heat dissipation) and power level (e.g., 50% power for low load), through the software interface of the main control computer or remote commands.

[0055] The signal filtering module is used to remove invalid components such as noise and electromagnetic interference from the raw signals (such as temperature, voltage, and humidity) collected by the integrated sensors, ensuring data accuracy, and also supports normalization processing of multi-source signals (such as the temperature difference between four monitoring points).

[0056] The signal filtering module uses digital filtering algorithms (such as Kalman filtering or low-pass filtering) to process real-time signals, and combines hardware design (such as shielded cables and grounding protection) to reduce external interference, and smooths or removes abnormal data (such as sudden temperature jumps).

[0057] The main control computer 3 also includes a feature extraction module and a data analysis module. The feature extraction module extracts temperature parameters from the signals collected by the integrated sensor 7. The data analysis module determines whether the control cabinet uses the cooling fan 6 for inward or outward heat dissipation based on the temperatures monitored at four monitoring points and the pressure level of the control cabinet. By monitoring four different locations within the control cabinet, the temperature distribution is detected, and based on this temperature distribution and pressure level, the design of using the cooling fan 6 for inward or outward heat dissipation is analyzed and determined. This heat dissipation control scheme effectively solves the problem of heat accumulation within the control cabinet.

[0058] Example 3

[0059] like Figure 5 , 6 As shown in Figure 7, the main control computer 3 determines whether to adjust the cooling mode of the cooling fan 6 based on the temperature distribution and pressure level within the control cabinet. Therefore:

[0060]

[0061] In the formula, This indicates the overall condition coefficient for adjusting cooling fan 6. This indicates the temperature deviation in the area above the isolated power supply module 4 in the control cabinet. This indicates the temperature deviation in the area below the isolated power supply module 4 in the control cabinet. This indicates the pressure resistance coefficient of the control cabinet.

[0062] The main control computer 3 estimates the pressure resistance of the control cabinet based on the changes in the internal resistance, energy conversion efficiency, and voltage differences between capacitors. Therefore:

[0063]

[0064] In the formula, This indicates the pressure resistance coefficient of the control cabinet. This indicates the change in the internal resistance of the control cabinet. This indicates the energy conversion efficiency during the charging and discharging process of the energy storage cabinet. This parameter represents the voltage difference between identical capacitors in the energy storage cabinet.

[0065] The pressure resistance coefficient of any given control cabinet is calculated. The change in internal resistance of the control cabinet is taken as... (Change in internal resistance = initial capacitance, battery internal resistance ÷ capacitance, increase in battery internal resistance × 100%). The energy conversion efficiency during the charging and discharging process of the energy storage cabinet is taken as... (Energy conversion efficiency = actual energy released by the capacitor or battery ÷ actual energy input to the capacitor or battery × 100%). The voltage difference parameter between identical capacitors in the energy storage cabinet is taken as... (Unit: V). Therefore:

[0066]

[0067] The above calculations show that the pressure resistance coefficient of this control cabinet is [value missing]. The higher the pressure resistance coefficient of the control cabinet, the greater the operating pressure that the energy storage control cabinet can withstand.

[0068] Furthermore, when calculating the comprehensive condition coefficient for adjusting the cooling fan 6, the deviation temperature of the area above the isolated power supply module 4 in the control cabinet was taken as... The deviation temperature of the area below the isolation power supply module 4 in the control cabinet is taken as follows: (Unit: °C)

[0069] , ,in This indicates the real-time temperature at monitoring point 1. This indicates the real-time temperature at monitoring point 2. This indicates the real-time temperature at monitoring point 3. This represents the real-time temperature at monitoring point 4. Therefore:

[0070]

[0071] The above calculations show that the overall condition coefficient for adjusting cooling fan 6 is: This means that cooling fan 6 needs to be changed to inward cooling.

[0072] Example 4

[0073] like Figure 6 , 7 As shown, when determining whether the control cabinet uses cooling fan 6 inward or outward cooling mode, the following applies:

[0074] Table 1. Some implementation parameters and fan adjustment status

[0075]

[0076] The data in Table 1 shows that when the sample data approaches infinity, a dividing line appears where the comprehensive condition coefficient determines whether or not to adjust the fan status. That is, when... When this occurs, it indicates that cooling fan 6 needs to be changed to provide external cooling; when When it is set to "on", it indicates that the current cooling method of cooling fan 6 will be maintained; when it is set to "on", it indicates that the current cooling method of cooling fan 6 will be maintained. If the time is right, it means that cooling fan 6 needs to be changed to inward cooling.

[0077] Example 5

[0078] like Figure 5 As shown, thermoelectric generators are installed in the heat dissipation channels of both the cooling fan and the heat dissipation grille. The thermoelectric generators are used to provide auxiliary power to the monitoring points.

[0079] A "sandwich" structure is adopted within the airflow channel of the heat dissipation grid, consisting of an outer grid, a middle thermoelectric generator, and an inner heat dissipation fin. The power supply terminal of the thermoelectric generator is connected to the monitoring point via a capacitor to provide auxiliary power to the monitoring point, thereby recovering energy during the heat dissipation process using the thermoelectric effect.

[0080] Example 6

[0081] A humidity sensor is also added to the exterior of control cabinet 1 to monitor environmental parameters in real time. The current seasonal characteristics are determined based on the matching degree between the humidity sensor's monitored parameters and historical data and real-time environmental parameters. Output probability matching is performed using an LSTM time-series classification model, resulting in:

[0082] Table 2. Matching degree between parameters of some embodiments and historical data

[0083]

[0084] The data in Table 2 above shows that simply installing a humidity sensor inside the cabinet can quickly determine the current seasonal characteristics. These seasonal characteristics can then be used to adjust the cabinet's heat dissipation method.

[0085] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A heat dissipation-friendly energy storage cabinet control cabinet, characterized in that, It includes a control cabinet (1), a trigger switch (2), a main control computer (3), an isolation power supply module (4), an air switch module (5), and an integrated sensor (7); the integrated sensor (7) includes four monitoring points set inside the control cabinet (1); Cooling fans (6) are provided on both the front and rear sides of the upper area of ​​the control cabinet (1), and cooling grilles are provided on both the front and rear sides of the lower area of ​​the control cabinet (1). The trigger switch (2) is fixedly installed at the bottom of the control cabinet (1), and the main control computer (3) and the isolation power supply module (4) are installed side by side on the top of the trigger switch (2). The air switch module (5) is located between the front and rear cooling fans (6). The main control computer (3) also includes: a feature extraction module and a data analysis module; The feature extraction module is used to extract temperature parameter information from the signal collected by the integrated sensor (7); The data analysis module is used to analyze whether the control cabinet uses the cooling fan (6) to dissipate heat inward or outward based on the temperature monitored at four monitoring points and the pressure resistance coefficient of the control cabinet. Specifically: ； In the formula, This indicates the overall condition coefficient for adjusting the cooling fan (6). This indicates the temperature deviation in the area above the isolated power supply module (4) in the control cabinet. This indicates the temperature deviation in the area below the isolated power supply module (4) in the control cabinet. This indicates the pressure resistance coefficient of the control cabinet; when If the signal is 0, it means that the cooling fan (6) needs to be changed to dissipate heat outwards. when When the current cooling mode of the cooling fan (6) is maintained, it indicates that the current cooling mode of the cooling fan (6) will be maintained. when If the signal is 0, it means that the cooling fan (6) needs to be changed to inward cooling. The pressure bearing coefficient is obtained based on the internal resistance change of the control cabinet, the energy conversion efficiency, and the voltage difference parameters between capacitors.

2. A control system for a heat-dissipating energy storage cabinet control cabinet, characterized in that, The control system, applied to the control cabinet of claim 1, includes a data collection module; The data collection module is used to collect the state of charge of the control cabinet, the energy conversion efficiency during charging and discharging, and the voltage difference parameters between capacitors. The main control computer (3) is used to analyze and determine whether the control cabinet uses a cooling fan (6) to dissipate heat inward or outward based on the parameter information of the integrated sensor (7) and the data collection module. Among them, the integrated sensor (7) is used to collect temperature parameters at four monitoring points inside the control cabinet (1).

3. The control system for the heat dissipation energy storage cabinet control cabinet according to claim 2, characterized in that: The control system also includes a parameter setting module and a signal filtering module; The parameter setting module is used to configure and adjust the operating parameters and operating power of the cooling fan (6); The signal filtering module is used to remove noise, interference, and unwanted components from the original signal.

4. The control system for the heat dissipation energy storage cabinet control cabinet according to claim 2, characterized in that: The main control computer (3) obtains the pressure resistance coefficient of the control cabinet based on the internal resistance change, energy conversion efficiency, and voltage difference parameters between capacitors. Specifically: ； In the formula, This indicates the pressure resistance coefficient of the control cabinet. This indicates the change in the internal resistance of the control cabinet. This indicates the energy conversion efficiency during the charging and discharging process of the energy storage cabinet. This parameter represents the voltage difference between identical capacitors in the energy storage cabinet.

5. The control system for the heat dissipation energy storage cabinet control cabinet according to claim 2, characterized in that: Thermoelectric generators are installed in the heat dissipation channels of both the cooling fan and the heat dissipation grille. These thermoelectric generators are used to provide auxiliary power to the monitoring points.

6. The control system for the heat dissipation energy storage cabinet control cabinet according to claim 2, characterized in that: A humidity sensor is also added to the outside of the control cabinet (1) to monitor environmental parameters in real time. The current seasonal characteristics are judged based on the matching degree between the humidity sensor monitoring parameters and historical data and real-time environmental parameters.

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