Control device and control system

Abstract

The utility model discloses a control device and a control system. The control device comprises a power supply module; the first end of the control module is electrically connected with the power supply module, and the second end of the control module is electrically connected with the reference voltage end; the control module is used for generating a control signal according to detection information that the battery temperature is greater than a threshold; the integrated chip is electrically connected with the power supply module, the integrated chip comprises a driving module, the first end of the driving module is electrically connected with the power supply module, and the second end of the driving module is electrically connected with the cooling device; the integrated chip is used for controlling the driving module to drive the cooling device to cool the battery according to the control signal. According to the embodiment of the invention, wiring connection among all devices can be reduced, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of electronic circuits, and particularly relates to a control device and a control system. Background Art

[0002] The thermal management system of the energy storage power station battery is of crucial significance for the safe, stable, and reliable operation of the energy storage power station. Currently, the battery thermal management system of the energy storage power station often includes devices such as a temperature control device, a power supply, and a controller. However, due to the large number of temperature control devices, the connection relationships between the various devices in the battery thermal management system are complex, and there is a lot of wiring, resulting in a high maintenance cost. Summary of the Utility Model

[0003] The embodiments of this application provide a control device and a control system, which can reduce the wiring connection between various devices and reduce the maintenance cost of the devices.

[0004] In a first aspect, the embodiments of this application provide a control device, including:

[0005] A power supply module;

[0006] A control module, the first end of the control module is electrically connected to the power supply module, and the second end of the control module is electrically connected to the reference voltage terminal; the control module is used to generate a control signal according to the detection information that the temperature of the battery is greater than the threshold;

[0007] An integrated chip, the integrated chip is electrically connected to the power supply module, the integrated chip includes a driving module, the first end of the driving module is electrically connected to the power supply module, and the second end of the driving module is electrically connected to the cooling device; the integrated chip is used to control the driving module to drive the cooling device to cool the battery according to the control signal.

[0008] In a second aspect, the embodiments of this application provide a power supply circuit, including:

[0009] A heating module such as the battery cooling system shown in the first aspect, and the heating module is electrically connected to the control device.

[0010] The control device and the control system provided by the embodiments of this application are provided with a control device including a power supply module, a control module, and an integrated chip. The power supply module supplies power to the integrated chip and the control module. The control module controls the integrated chip to drive the cooling device electrically connected to the integrated chip to cool the battery. The integrated chip reduces the wiring connection between various devices and reduces the maintenance cost. Description of the Drawings

[0011] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for use in the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 A schematic diagram of a control system provided for some embodiments of the present application.

[0013] Figure 2 A schematic diagram of a control device provided for some embodiments of the present application.

[0014] Figure 3 Another schematic diagram of a control device provided for some embodiments of the present application.

[0015] Figure 4 Still another schematic diagram of a control device provided for some embodiments of the present application. Detailed implementation manners

[0016] The following will describe in detail the features and exemplary embodiments of various aspects of the present application. To make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0017] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the elements.

[0018] Before elaborating on the technical solutions provided by the embodiments of the present application, for the convenience of understanding the embodiments of the present application, the present application first specifically describes the problems existing in the related technologies:

[0019] As the sole energy source for power exchange, the temperature of the battery in the energy storage power station affects the performance of the energy storage battery pack and even directly impacts the efficiency of the entire energy storage power station. For example, both too high or too low temperatures can cause the efficiency conversion of the energy storage power station during charging. A large amount of heat is generated during the charging process of the energy storage battery, and the energy storage battery is an entire pack composed of multiple groups of single cells connected in series and parallel. The heat dissipation of the energy storage battery itself is relatively poor. Therefore, during the charging process of the energy storage battery pack, a control system is required to control the temperature during the battery heating process, cooling when the battery temperature is too high, and heating when the battery temperature is too low.

[0020] However, in the current control system, due to the presence of multiple cooling devices and heating devices, the connection relationships between the devices in the control system are complex, there is a lot of wiring, resulting in a relatively high maintenance cost.

[0021] Based on this, the embodiments of the present application provide a control device and a control system, which can solve the above problems. Next, a control system provided by the embodiments of the present application will be described in detail.

[0022] In some embodiments, as Figure 1 shown, the embodiments of the present application provide a control system, including a heating module 101 and a control device 102. The heating module 101 is electrically connected to the control device 102.

[0023] The heating module is used to raise the temperature of the battery according to the heating control signal, and the control device is used to generate a control signal based on the detected information of the battery temperature to control the cooling device to cool the battery.

[0024] By providing a control system including a heating module and a control device in the embodiments of the present application, it is possible to raise or lower the temperature of the battery based on the battery temperature, enabling the temperature of the energy storage battery during the charging process to be within a better temperature range and improving the charging efficiency of the energy storage battery. At the same time, the above system has a simple structure, can reduce the number of wirings, and lower the usage cost and maintenance cost.

[0025] In some embodiments, as Figure 2 shown, the embodiments of the present application provide a control device 102, including:

[0026] A power supply module 201;

[0027] A control module 202, the first end of the control module is electrically connected to the power supply module, and the second end of the control module is electrically connected to the reference voltage terminal; the control module is used to generate a control signal based on the detected information that the battery temperature is greater than the threshold;

[0028] The integrated chip 203 is electrically connected to the power supply module. The integrated chip includes a driving module 204. The first end of the driving module 204 is electrically connected to the power supply module, and the second end of the driving module is electrically connected to the temperature reduction device 205. The integrated chip is used to control the driving module according to the control signal to drive the temperature reduction device to cool the battery.

[0029] Here, the power supply module is connected to both the control module and the integrated chip, and the power supply module is used to supply power to the control module and the integrated chip.

[0030] In some examples, the control module can be a control chip such as an HCM chip. The control chip is used to generate a control signal according to the detection information that the battery temperature is greater than the threshold value. The control signal can be a Pulse Width Modulation (PWM) wave signal.

[0031] The integrated chip is electrically connected to the temperature reduction device. The integrated chip includes a driving module. The driving module is arranged between the power supply module and the temperature reduction device. The integrated chip can control the driving module according to the control signal to drive the temperature reduction device to cool the battery, avoiding the battery temperature being too high during charging and affecting the charging efficiency.

[0032] The control device provided by the embodiment of the present application supplies power to the integrated chip and the control module through the power supply module, controls the integrated chip to drive the temperature reduction device electrically connected to the integrated chip to cool the battery through the control module, and integrating the driving module into the integrated chip can reduce the wiring quantity of the device, reduce the use cost of the wiring, and reduce the maintenance cost at the same time.

[0033] In some embodiments, as Figure 3 shown, the power supply module includes a first power supply module 301, a second power supply module 302, and a third power supply module 303;

[0034] The first power supply module 301 is electrically connected to the first end of the driving module, the first power supply module 302 is electrically connected to the first end of the control module, and the third power supply module 303 is electrically connected to the integrated chip;

[0035] The first power supply module 301 is used to convert the received alternating current into direct current of a first voltage and output the first voltage;

[0036] The first power supply module 302 is used to convert the received alternating current into alternating current of a first voltage and output the first voltage;

[0037] The third power supply module 303 is used to convert the received alternating current into alternating current of a second voltage and output the second voltage.

[0038] Here as Figure 3As shown, the alternating current received by the first power supply module 301, the first power supply module 302, and the third power supply module 303 is three-phase alternating current. The first power supply module 301 is used to convert the received three-phase alternating current into direct current of a first voltage and output the first voltage. The driving module can drive the cooling device to start cooling the battery according to the first voltage.

[0039] As Figure 3 , the first power supply module 302 includes a first output terminal and a second output terminal. The first output terminal is electrically connected to the control module, and the second output terminal is electrically connected to the reference voltage terminal. The third power supply module 303 includes a third output terminal and a fourth output terminal. The third output terminal is electrically connected to the integrated chip, and the fourth output terminal is electrically connected to the reference voltage terminal. Among them, the first power supply module 302 is used to supply power to the control module, and the third power supply module 303 is used to supply power to the integrated chip.

[0040] In the embodiment of the present application, by setting the power supply module to include the first power supply module 301, the first power supply module 302, and the third power supply module 303, the three power supply modules are used to supply power to the driving module, the control module, and the integrated chip respectively, which can meet the power consumption requirements of the above-mentioned driving module, control module, and integrated chip, and realize that the control device can be used normally to cool the battery.

[0041] In some embodiments, as Figure 3 shown, the first power supply module 301301 includes a rectification module 304 and a bus bar 305. The rectification module is electrically connected to the bus bar;

[0042] The rectification module is used to convert alternating current into direct current and output direct current. The bus bar is used to convert the received direct current into direct current of a first voltage.

[0043] Here, setting the rectification module can convert three-phase alternating current into direct current and input it to the bus bar. The bus bar converts the direct current into direct current of a first voltage to supply power to the driving module, which can meet the power consumption needs of the driving module and realize that the driving module can be used normally to drive the cooling device to cool the battery.

[0044] In some embodiments, as Figure 3 shown, the rectification module includes a first rectification line 3041 and a second rectification line 3042. The bus bar includes a first bus bar 3051 and a second bus bar 3052; The device further includes a pre-charge module 306; The first rectification line is electrically connected to the first bus bar, the second bus bar is electrically connected to the first end of the pre-charge module, and the second end of the pre-charge module is electrically connected to the second rectification line.

[0045] Here, the rectification module is a rectifier bridge that can convert three-phase alternating current into direct current. The first end of the pre-charge module is electrically connected to the second bus, and the second end of the pre-charge module is electrically connected to the second rectification line. The pre-charge module can realize the soft-start function of the bus. When the direct current voltage is low, the pre-charge module is in the off state, and the direct current charges the pre-charge module. When the voltage of the pre-charge module meets the threshold, the pre-charge module conducts, and the direct current inputs to the bus to supply power to the bus, and then supplies power to the drive module through the bus.

[0046] In the embodiment of the present application, by setting the pre-charge module, the soft-start function of the bus can be realized, which can avoid the problem that when the bus starts with low-voltage direct current input, the drive module and the cooling device may be in a low-voltage environment, resulting in damage to the cooling device.

[0047] In some embodiments, the drive module 204 includes a DC-AC conversion module 307. The first end of the DC-AC conversion module is electrically connected to the power module, and the second end of the DC-AC conversion module is electrically connected to the cooling device.

[0048] The DC-AC conversion module is used to convert the received direct current of the first voltage into alternating current of a preset voltage and output the alternating current of the preset voltage.

[0049] Such as Figure 3 , the DC-AC conversion module may include an inverter, and the inverter can convert the direct current of the first voltage into three-phase alternating current of a preset voltage.

[0050] In the embodiment of the present application, by setting the DC-AC conversion module to convert the direct current of the first voltage into alternating current of a preset voltage, and by setting the DC-AC conversion module, the direct current can be converted into three-phase alternating current of a preset voltage to supply power to the cooling device, so that the cooling device can be used normally.

[0051] In some embodiments, such as Figure 3 shown, the DC-AC conversion module 307 includes a first sub-module 3071 and a second sub-module 3072; the cooling device 205 includes a first cooling device 2051 and a second cooling device 2052;

[0052] The first end of the first sub-module is electrically connected to the power module, the second end of the first sub-module is electrically connected to the first cooling device, the first end of the second sub-module is electrically connected to the power module, and the second end of the second sub-module is electrically connected to the second cooling device.

[0053] Such as Figure 3 , the DC-AC conversion module may include a first sub-module and a second sub-module. Here, the first sub-module can convert the direct current into three-phase alternating current of a first preset voltage to supply power to the first cooling device, and the second sub-module can convert the direct current into three-phase alternating current of a second preset voltage to supply power to the second cooling device.

[0054] In some embodiments, there may be multiple second sub - modules, and there may be multiple second cooling devices, with one second sub - module corresponding to one second cooling device.

[0055] In some embodiments, the first cooling device includes a compressor, and the second cooling device includes at least one of the following: a fan and a water pump.

[0056] In some embodiments, the fan may include Fan 1 and Fan 2, and Fan 1 and Fan 2 respectively correspond to different second sub - modules.

[0057] For example, when the first cooling device is a compressor, the first sub - module can convert direct current into three - phase alternating current with a first preset voltage required to drive a 22 - kW compressor. When the second cooling device includes a fan or a water pump, the second sub - module can convert direct current into three - phase alternating current with a second preset voltage required to drive a 2.2 - kW fan or water pump.

[0058] In some embodiments, when the first cooling module includes a compressor, the second end of the first sub - module can be electrically connected to the compressor fan. While driving the compressor to cool the battery through the first sub - module, the operation information of the compressor fan is received, such as information indicating normal operation and information indicating abnormal operation, to monitor the operation status of the compressor fan and prevent the compressor from being damaged due to overheating.

[0059] By setting the DC - AC conversion module to include a first sub - module and a second sub - module, and the cooling device to include a first cooling device and a second cooling device, where the first sub - module is used to drive the first cooling device and the second sub - module is used to drive the second cooling device, the embodiments of the present application can meet the voltage requirements of different cooling devices and achieve the driving of multiple different cooling devices.

[0060] In some embodiments, the first end of the first sub - module includes a first sub - end 3073 and a second sub - end 3074, and the first end of the second sub - module includes a third sub - end 3075 and a fourth sub - end 3076;

[0061] The first sub - end of the first sub - module is electrically connected to the first bus, and the second sub - end of the first sub - module is electrically connected to the second bus; the third sub - end of the second sub - module is electrically connected to the first bus, and the fourth sub - end of the second sub - module is electrically connected to the second bus.

[0062] By setting the first sub - end of the first sub - module to be electrically connected to the first bus, the second sub - end to be electrically connected to the second bus, and setting the third sub - end of the second sub - module to be electrically connected to the first bus and the fourth sub - end to be electrically connected to the second bus, the embodiments of the present application can supply power to the first sub - module and the second sub - module based on the bus.

[0063] In some embodiments, such asFigure 3 As shown in the figure, the control device further includes a reactance module 308. The first end of the reactance module is electrically connected to the first rectifying line, and the second end of the reactance module is electrically connected to the first bus. The reactance module is used to suppress the harmonics output by the inverter, avoid the interference of the inverter harmonics to the bus, and affect the bus voltage.

[0064] In some embodiments, as Figure 4 shown in the figure, the control device further includes a filtering module 401. The filtering module is electrically connected to the rectifying module. The filtering module is used to filter the alternating current to obtain filtered alternating current, and the rectifying module is used to convert the filtered alternating current into direct current and output direct current.

[0065] Here, as Figure 4 shown in the figure, the filtering module can filter the three-phase alternating current and output the filtered three-phase alternating current. By filtering the three-phase alternating current, it can play a role in denoising the three-phase alternating current.

[0066] In some embodiments, as Figure 4 shown in the figure, the filtering module includes a first filtering device 402, a second filtering device 403, a third filtering device 404 and an anti-static device 405. The three-phase alternating current can be filtered by multiple filtering devices, and the anti-static device is set to release static electricity in time to avoid damage to the circuit caused by static electricity.

[0067] In some embodiments, as Figure 4 shown in the figure, the control device further includes a switch module K1. The first end of the switch module is electrically connected to the filtering module, and the second end of the switch module is electrically connected to the rectifying module. The switch module is used to turn off according to the detection information that the compressor pressure is greater than the threshold value, so as to disconnect the electrical connection between the filtering module and the rectifying module.

[0068] Here, a switch module can be set between the filtering module and the rectifying module. The switch module can be turned off according to the detection information that the compressor pressure is greater than the threshold value, and the electrical connection between the filtering module and the rectifying module can be disconnected in time, so that the rectifying module has no voltage input, and then the compressor is powered off, avoiding damage to the equipment caused by excessive compressor pressure.

[0069] In some embodiments, as Figure 4 shown in the figure, the temperature rising module includes a first temperature rising module 406 and a second temperature rising module 407. The first temperature rising module can include at least one of a heating belt and a liquid extraction pump, and the second temperature rising module includes a PTC heater. As Figure 4 , the first end of the first temperature rising module is electrically connected to the single-phase T pole of the three-phase alternating current through the first switch module K2, the second end of the first temperature rising module is electrically connected to the N pole of the three-phase alternating current, and the first sub-end, the second sub-end and the third sub-end of the second temperature rising module are respectively electrically connected to the R, S and T poles of the three-phase alternating current through the second switch module K3.

[0070] In some embodiments, the control module may be configured to perform functions such as battery temperature detection, switch module K1, open-phase detection, compressor fan fault detection, and overcurrent protection.

[0071] In some embodiments, the drive module may be configured to perform functions such as current detection, bus voltage detection, optocoupler, open-phase detection, etc.

[0072] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; within the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.

[0073] It should also be noted that the functional blocks shown in the above structural block diagrams can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application-specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, etc. When implemented in software, the elements of the present application are programs or code segments for performing the required tasks. The program or code segment can be stored in a machine-readable medium or transmitted via a data signal carried in a carrier wave on a transmission medium or a communication link. A "machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical discs, hard disks, fiber optic media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0074] It should also be noted that the exemplary embodiments mentioned in the present application describe some methods or devices based on a series of steps or devices. However, the present application is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, or different from the order in the embodiments, or several steps can be executed simultaneously.

[0075] As described above with reference to the flowcharts and / or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the present application. It should be understood that each block in the flowchart and / or block diagram, and the combination of blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine, such that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the functions / actions specified in one or more blocks of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It should also be understood that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can also be implemented by dedicated hardware that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0076] As described above, the above is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described devices, modules, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A control device, characterized in that, Including: Power supply module; Control module, the first end of the control module is electrically connected to the power supply module, and the second end of the control module is electrically connected to the reference voltage terminal; The control module is used to generate a control signal according to the detection information that the temperature of the battery is greater than the threshold; Integrated chip, the integrated chip is electrically connected to the power supply module, the integrated chip includes a drive module, the first end of the drive module is electrically connected to the power supply module, and the second end of the drive module is electrically connected to the cooling device; the integrated chip is used to control the drive module to drive the cooling device to cool the battery according to the control signal.

2. The control device according to claim 1, wherein The power supply module includes a first power supply module, a second power supply module and a third power supply module; The first power supply module is electrically connected to the first end of the drive module, the second power supply module is electrically connected to the first end of the control module, and the third power supply module is electrically connected to the integrated chip; The first power supply module is used to convert the received alternating current into direct current of a first voltage and output the first voltage; The second power supply module is used to convert the received alternating current into alternating current of a first voltage and output the first voltage; The third power supply module is used to convert the received alternating current into alternating current of a second voltage and output the second voltage.

3. The control device according to claim 2, wherein The first power supply module includes a rectification module and a bus, and the rectification module is electrically connected to the bus; The rectification module is used to convert alternating current into direct current and output the direct current, and the bus is used to convert the received direct current into direct current of the first voltage.

4. The control device according to claim 3, characterized in that, The rectification module includes a first rectification line and a second rectification line, the bus includes a first bus and a second bus; the device further includes a pre-charge module; the first rectification line is electrically connected to the first bus, the second bus is electrically connected to the first end of the pre-charge module, and the second end of the pre-charge module is electrically connected to the second rectification line.

5. The control device according to claim 4, characterized in that, The drive module includes a DC-AC conversion module, the first end of the DC-AC conversion module is electrically connected to the power supply module, and the second end of the DC-AC conversion module is electrically connected to the cooling device; The DC-AC conversion module is used to convert the received direct current of the first voltage into alternating current of a preset voltage and output the alternating current of the preset voltage.

6. The control device according to claim 5, characterized in that, The DC-AC conversion module includes a first sub-module and a second sub-module; the cooling device includes a first cooling device and a second cooling device; The first end of the first sub-module is electrically connected to the power supply module, the second end of the first sub-module is electrically connected to the first cooling device, the first end of the second sub-module is electrically connected to the power supply module, and the second end of the second sub-module is electrically connected to the second cooling device; Wherein, the first cooling device includes a compressor, and the second cooling device includes at least one of the following: a fan, a water pump.

7. The control device according to claim 5, characterized in that The first end of the first sub-module includes a first sub-end and a second sub-end, and the first end of the second sub-module includes a third sub-end and a fourth sub-end; The first sub-end of the first sub-module is electrically connected to the first bus, and the second sub-end of the first sub-module is electrically connected to the second bus; The third sub - terminal of the second sub - module is electrically connected to the first busbar, and the fourth sub - terminal of the second sub - module is electrically connected to the second busbar.

8. The control device according to claim 7, wherein It further includes a filtering module. The filtering module is electrically connected to the rectifying module. The filtering module is used to filter the alternating current to obtain filtered alternating current, and the rectifying module is used to convert the filtered alternating current into direct current and output the direct current.

9. The control device according to claim 8, characterized in that, It further includes a switching module. The first end of the switching module is electrically connected to the filtering module, and the second end of the switching module is electrically connected to the rectifying module. The switching module is used to turn off according to the detection information that the compressor pressure is greater than the threshold value to disconnect the electrical connection between the filtering module and the rectifying module.

10. A control system, characterized in that, Comprising: A heating module and the control device according to any one of claims 1 to 9, wherein the heating module is electrically connected to the control device.

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