Power supply control method and apparatus, control device, control circuit, and storage medium

Abstract

The present application discloses a power supply control method, a power supply control apparatus, a control device, a control circuit, and a storage medium. The method is applied to a control device in a control circuit; the control circuit further comprises a power supply circuit and a sampling device; the power supply circuit comprises N power supplies, wherein N≥2; each power supply is provided with a power converter; the sampling device is separately connected to the power supplies and the control device; the control device is further connected to the power converters of the power supplies; an output voltage of each power supply is determined by its own adjustment ratio and a preset reference voltage. The method comprises: acquiring power supply state parameters of each of the N power supplies, so as to determine an abnormal power supply; and reducing the present adjustment ratio of the abnormal power supply, so as to control the abnormal power supply to reduce the output voltage on the basis of the present adjustment ratio reduced and the reference voltage. The solution of the present application can implement balanced output of N power supplies, ensuring that the N power supplies can work safely and reliably for a long time.

Description

Power supply control method, device, control equipment, control circuit and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 9, 2023, with application number 202311687985.5 and invention name “Power supply control method, device, control equipment, control circuit and storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of circuit control technology, and in particular relates to a power supply control method, a power supply control device, a control device, a control circuit, and a computer-readable storage medium. Background Art

[0003] In industrial applications, multiple power supplies are essential for ensuring the continuous operation of industrial equipment. Currently, due to variations in power lines and individual device components, one power supply often serves as the primary output, with the others acting as backups until the primary power supply fails, at which point the other power supplies become the new primary output. This can cause individual power supplies to fail sequentially, making the multi-power supply unreliable and unsafe for long-term operation.

[0004] Application Contents

[0005] The present application provides a power supply control method, a power supply control device, a control device, a control circuit and a computer-readable storage medium, which can achieve balanced output of N power supplies and ensure that the N power supplies can operate safely and reliably for a long time.

[0006] In a first aspect, the present application provides a control circuit, comprising: a power supply circuit, a control device, and a sampling device; wherein the power supply circuit comprises N power supplies, N ≥ 2, and each of the power supplies is provided with a power converter; the sampling device is respectively connected to each of the power supplies, and the sampling device is also connected to the control device; the control device is also connected to the power converter of each of the power supplies;

[0007] The control device is used to determine an abnormal power source according to a sampling result of the sampling device, and output a control signal to a power converter of the abnormal power source.

[0008] To extend the life of the power supply, this application proposes a control circuit. The sampling device in this control circuit monitors each power supply. Based on the monitoring results (i.e., the sampling results of the sampling device), the control device in this control circuit promptly identifies an abnormal power supply among the N power supplies. After identifying an abnormal power supply, the control device outputs a control signal to the power converter of the abnormal power supply, thereby promptly alleviating the abnormal state of the abnormal power supply, ensuring the safety of the abnormal power supply, and balancing the output of the N power supplies.

[0009] In some embodiments, each power supply is further provided with a unidirectional conducting unit; wherein the conducting direction of the unidirectional conducting unit is the output direction of the power converter.

[0010] The embodiment of the present application uses a unidirectional conduction unit to adjust the unidirectional conduction flux in the power supply output direction when integrating the outputs of the power converters of various power supplies together; specifically, according to the selection of the unidirectional conduction unit, the integrated output can ultimately be a single power supply output, or the integrated output can be a multi-power supply output according to a certain flux ratio, thereby meeting different power supply circuit output requirements.

[0011] In some embodiments, each power supply is further provided with a current sampling unit; the sampling device includes: a temperature sampling device, a current sampling device and a voltage sampling device; wherein the temperature sampling device samples the power converter of each power supply, the current sampling device is respectively connected to the current sampling unit of each power supply, and the voltage sampling device is respectively connected to the output line of the power converter of each power supply.

[0012] In an embodiment of the present application, the sampling device can specifically sample from three sampling dimensions, namely temperature, current and voltage, to help the control device determine whether the power circuit has abnormal conditions caused by overheating, overcurrent and overvoltage; further, since the power can be calculated based on the current and voltage, the control device can also determine whether the power supply has an abnormal condition of overload based on this; thereby, multi-dimensional abnormal monitoring of the power circuit can be achieved.

[0013] In a second aspect, the present application provides a power supply control method, which is applied to a control device in a control circuit, wherein the output voltage of each power supply in the control circuit is determined by its respective adjustment ratio and a preset reference voltage, and the power supply control method includes:

[0014] Obtain the power status parameters of each of N power supplies;

[0015] Determine the abnormal power supply according to the power status parameters of each power supply;

[0016] The current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0017] To extend the life of the power supply, the present application proposes monitoring each power supply, specifically collecting the power supply status parameters of each power supply. Since the power supply status parameters change with the operating state of the power supply, by analyzing the power supply status parameters of each power supply, it is possible to promptly identify the power supply in an abnormal state, i.e., an abnormal power supply. Since parameters such as current, temperature, and power are positively correlated with voltage to a certain extent, the present application reduces the output voltage of the abnormal power supply to quickly alleviate its abnormal state, thereby preventing the power supply from operating in an abnormal state for a long time and extending the life of the power supply. This achieves balanced output of N power supplies and ensures the safe and reliable long-term operation of the N power supplies. Since each power supply is based on a reference voltage, the output voltage is adjusted up and down through its own adjustment ratio. Based on this, for abnormal voltages, this embodiment quickly controls its output voltage by reducing its current adjustment ratio, simplifying the control process of abnormal power supplies and improving the control efficiency of abnormal power supplies.

[0018] In some embodiments, reducing the current regulation ratio of the abnormal power supply includes:

[0019] According to the preset proportional interval value, the current regulation ratio of the abnormal power supply is reduced.

[0020] Through the preset proportional interval value, the control device can gradually reduce the output voltage of the abnormal power supply to avoid excessive adjustment of the abnormal power supply in a short period of time, thereby achieving orderly control of the abnormal power supply.

[0021] In some embodiments, reducing the current regulation ratio of the abnormal power supply includes:

[0022] Determine the degree of abnormality of the abnormal power supply;

[0023] According to the degree of abnormality, the current regulation ratio of the abnormal power supply is reduced.

[0024] The control device can also make adaptive adjustments to the abnormal power supply according to the abnormality degree of the abnormal power supply, thereby achieving flexible control of the abnormal power supply.

[0025] In some embodiments, before reducing the current regulation ratio of the abnormal power source, the power control method further includes:

[0026] Compare the current regulation ratio of the abnormal power supply with the preset minimum regulation ratio;

[0027] Accordingly, the current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage, including:

[0028] When the current regulation ratio of the abnormal power supply is greater than the preset minimum regulation ratio, the current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0029] To ensure the availability of the power supply circuits, a minimum regulation ratio is set. This minimum regulation ratio serves as a control limit when controlling each power supply. In other words, the current regulation ratio of each power supply can only be reduced to this minimum regulation ratio to ensure meaningful output.

[0030] In some embodiments, after reducing the current regulation ratio of the abnormal power source, the power control method further includes:

[0031] Determine the current regulation ratio of each power supply;

[0032] When the current regulation ratio of each power supply is the preset minimum regulation ratio, a reminder message is output.

[0033] When the current regulation ratios of all power supplies are at their lowest, a reminder message is output to inform the power circuit of the possible power failure risk in advance, allowing the user to make advance plans for coping strategies to address the risk, thereby ensuring the normal operation of the power supply objects of the N power supplies.

[0034] In some embodiments, after reducing the current regulation ratio of the abnormal power source, the power control method further includes:

[0035] Determine the real-time output voltage of each power supply;

[0036] The power supply corresponding to the maximum real-time output voltage is determined as the main output power supply.

[0037] This embodiment introduces a competition mechanism. After each abnormal power supply is controlled, a new master output power supply is re-determined from the N power supplies through this competition mechanism. This achieves dynamic update of the master output power supply and prevents a power supply from being selected as the master output power supply for a long time, causing its line to age faster.

[0038] In some embodiments, after determining the current regulation ratio of the abnormal power supply, the power supply control method further includes:

[0039] When the current regulation ratio of the abnormal power supply is a preset minimum regulation ratio, the abnormal power supply is turned off.

[0040] If a power source's current regulation ratio is already at its lowest, but it still exhibits an abnormality, the abnormality is likely caused by a fault in the power source's circuit. Given that the current regulation ratio of the power source cannot be adjusted downward, this embodiment shuts down the abnormal power source to ensure power safety, preventing it from operating abnormally for extended periods and potentially causing safety issues.

[0041] In some embodiments, determining an abnormal power source based on power state parameters of each power source includes:

[0042] Comparing the power status parameters of each power supply with the preset parameter thresholds respectively;

[0043] A power supply whose power supply status parameter is greater than or equal to a parameter threshold is determined as an abnormal power supply.

[0044] This embodiment proposes a parameter threshold for determining abnormal power supply, so as to achieve accurate determination of abnormal power supply.

[0045] In some embodiments, after reducing the current regulation ratio of the abnormal power source, the power control method further includes:

[0046] When the power state parameter of the abnormal power source is continuously less than or equal to the parameter threshold and the duration thereof is longer than the preset duration threshold, the current regulation ratio of the abnormal power source is restored.

[0047] Considering that the instability of an abnormal power supply may be temporary, this embodiment can restore the current regulation ratio of the abnormal power supply after the abnormal power supply has returned to normal for a long time, thereby restoring the output voltage of the abnormal power supply. In this way, the control of the power supply is no longer unidirectional (for example, not just controlling the power supply to reduce the output voltage), but flexible bidirectional control.

[0048] In some embodiments, the power state parameter includes at least one of the following: real-time output voltage, real-time output current, real-time temperature, and real-time power.

[0049] In this embodiment, the main consideration is the overvoltage, overcurrent, overheating, and overload conditions of the power supply. Specifically, by monitoring the real-time output voltage, it is possible to promptly identify abnormal power supplies with overvoltage; by monitoring the real-time output current, it is possible to promptly identify abnormal power supplies with overcurrent; by monitoring the real-time temperature, it is possible to promptly identify abnormal power supplies with overheating; and by monitoring the real-time power, it is possible to promptly identify abnormal power supplies with overload.

[0050] In a third aspect, the present application provides a power supply control device. The power supply control method is applied to a control device in a control circuit, and the output voltage of each power supply in the control circuit is determined by its respective adjustment ratio and a preset reference voltage. The power supply control device includes:

[0051] An acquisition module is used to obtain power status parameters of each of the N power supplies;

[0052] A first determining module, configured to determine an abnormal power source according to power state parameters of each power source;

[0053] The first control module is used to reduce the current regulation ratio of the abnormal power supply, so as to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0054] In a fourth aspect, the present application provides a control device, which includes a memory, a processor, and a computer program stored in the above-mentioned memory and executable on the above-mentioned processor. When the above-mentioned processor executes the above-mentioned computer program, it implements the steps of the method in the above-mentioned second aspect.

[0055] In a fifth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method in the second aspect are implemented.

[0056] In a sixth aspect, the present application provides a computer program product, which includes a computer program. When the computer program is executed by one or more processors, it implements the steps of the method in the second aspect.

[0057] It can be understood that the beneficial effects of the third to sixth aspects mentioned above can be found in the relevant description of the second aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0059] FIG1 is a circuit diagram of a control circuit provided in an embodiment of the present application;

[0060] FIG2 is a schematic diagram of an implementation flow of a power supply control method provided in an embodiment of the present application;

[0061] FIG3 is a structural block diagram of a power supply control device provided in an embodiment of the present application;

[0062] FIG4 is a schematic diagram of the structure of the control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0063] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0065] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0066] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0067] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0068] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), unless otherwise clearly and specifically defined.

[0069] The stability of industrial equipment is closely related to its power supply (i.e., power supply). If the power supply is abnormal, the industrial equipment may not function properly, thus affecting the operation of the entire system. Therefore, in industrial applications, multiple power supplies are essential to ensure the continuous operation of industrial equipment. As an example, this industrial equipment could be a UHV energy storage valve control device, and this article does not restrict industrial equipment requiring multiple power supplies.

[0070] In a multi-channel power supply, due to differences in power supply lines and individual device variations, only one power supply may maintain continuous output during the output process. This can accelerate the aging of that circuit and eventually cause it to fail. Because the different power supplies serve as redundant backups, if one power supply fails, another will switch to maintain output. Obviously, this process increases the operating burden of each power supply and can easily lead to the failure of each power supply in turn.

[0071] Based on the above considerations, the present invention proposes a power supply control method, a power supply control device, a control circuit, a control device, and a storage medium, which can monitor the output of each power supply in real time and adjust the power supply output in real time. To illustrate the technical solution proposed in the present invention, a specific embodiment is provided below.

[0072] The following describes a control circuit provided in an embodiment of the present application. The control circuit includes: a power supply circuit, a control device, and a sampling device. The power supply circuit includes N power supplies, N ≥ 2; that is, these N power supplies are actually generalized multi-way power supplies. Each power supply is provided with a power converter; through the corresponding power converters, the input of each power supply can be converted to obtain the output of each power supply. In some examples, the function of the power converter can be specifically: when the input power supply is an AC power supply, it is converted into a DC power supply; and when the input power supply is a high voltage, it is converted into a low voltage.

[0073] Specifically, in the control circuit, a sampling device is connected to each power source, and the sampling device is also connected to the control device; the control device is also connected to the power converter of each power source. It is understood that the sampling results of the sampling device can be transmitted to the control device; thus, the control device can determine the abnormal power source based on the sampling results of the sampling device and output a control signal to the power converter of the abnormal power source.

[0074] In some embodiments, each power supply is further provided with a unidirectional conduction unit; wherein the conduction direction of the unidirectional conduction unit is the output direction of the power converter. As an example only, the unidirectional conduction unit may be a diode or a MOS tube, etc., and the specific type of the unidirectional conduction unit is not limited here. Specifically, in the application scenario where the power supply circuit has multiple inputs and a single output, the unidirectional conduction unit may be a diode, thereby realizing a competition mechanism among the power supplies through the forward conduction and reverse interception characteristics of the diode, ensuring that only one power supply can be used as the main output power supply to realize a single output. In the application scenario where the power supply circuit has multiple inputs and multiple outputs, the unidirectional conduction unit may be a MOS tube of relatively complex selection, thereby enabling the output of each power supply to be balanced after passing through the MOS tube, and each power supply can be output together according to power distribution to realize multi-channel output.

[0075] In some embodiments, each power supply is further provided with a current sampling unit. As an example only, the current sampling unit may be a resistor or other component that facilitates current measurement, which is not limited here. The sampling device includes: a temperature sampling device, a current sampling device, and / or a voltage sampling device. The temperature sampling device may employ contact or non-contact temperature sampling, and its sampling object is the power converter of each power supply. The current sampling device is respectively connected to the current sampling unit of each power supply; and the voltage sampling device is respectively connected to the output circuit of the power converter of each power supply. It is understood that the connection established between the current sampling device and the voltage sampling device and the power circuit is specifically an electrical connection. However, due to the different sampling methods of the temperature sampling device, it is not necessary to establish an electrical connection with the power circuit, and it only needs to ensure that its sampling object is the power converter of each power supply.

[0076] Please refer to FIG1 , which shows a possible example of a control circuit composed of a power supply circuit, a control device, and a sampling device.

[0077] The following describes a power control method provided in an embodiment of the present application. The execution subject of the power control method can be a control device with control functions in a control circuit. Referring to Figure 2, the power control method in the embodiment of the present application includes:

[0078] Step 201: Obtain power status parameters of each of N power supplies.

[0079] The control device can use a sampling device to sample a power circuit composed of N power supplies, thereby obtaining power status parameters of each power supply based on the sampling results. The sampling device can be integrated into the control device; alternatively, the sampling device can be independent of the control device and establish a communication connection with the control device. Specifically, the sampling device can be a sampling circuit that can sample each power supply via an analog-to-digital converter (ADC). The sampling results can be output to the control device, allowing the control device to obtain the power status parameters of each power supply based on the sampling results for subsequent analysis and processing by the control device.

[0080] In some embodiments, common power supply anomalies include, but are not limited to, overvoltage, overcurrent, overheating, and overload. Overvoltage refers to excessively high output voltage of the power supply, overcurrent refers to excessively high output current of the power supply, overheating refers to excessively high temperature of the power supply chip (specifically, the power converter), and overload refers to excessively high output power of the power supply. Based on the above common power supply anomalies, the power supply status parameters of interest in embodiments of the present application may include, but are not limited to, one or more of the following: real-time output voltage, real-time output current, real-time temperature, and real-time power. The real-time output voltage, real-time output current, and real-time temperature can all be directly sampled by a sampling device; while the real-time power can be calculated from the real-time output voltage and real-time output current sampled by the sampling device. Embodiments of the present application do not limit the methods for obtaining the various power supply status parameters. Specifically, since power-based control of power supply circuits typically occurs in multi-input, multi-output applications, in the case of a multi-input, single-output power supply circuit, the power supply status parameters may not include real-time power; in the case of a multi-input, multi-output power supply circuit, the power supply status parameters may include real-time power.

[0081] Step 202: Determine an abnormal power source based on power state parameters of each power source.

[0082] The control device is pre-configured with power supply status assessment conditions, which specify abnormal value ranges and / or normal value ranges for power supply status parameters. Based on this, after obtaining the power supply status parameters of each power supply, the control device can compare each power supply status parameter with the abnormal value ranges and / or normal value ranges specified in the status assessment conditions, thereby determining whether any of the N power supplies are abnormal.

[0083] Step 203 : reducing the current regulation ratio of the abnormal power supply to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0084] It can be understood that the output current, output power and temperature of the power supply will usually decrease as the output voltage decreases. Therefore, the control device can control the output voltage of the abnormal power supply to prevent the abnormal power supply from being in an abnormal state for a long time. Among them, the output voltage of each power supply is specifically determined by its own adjustment ratio and a preset reference voltage. In some examples, the reference voltage can be 14V or other values, which can be specifically determined by the rated voltage of the electrical equipment, and is not limited here; taking any power supply as an example, the adjustment ratio of the power supply refers to: the ratio of the output voltage of the power supply to the reference voltage; when the adjustment ratio is greater than 1, the output voltage floats up compared to the reference voltage; when the adjustment ratio is less than 1, the output voltage floats down compared to the reference voltage. Therefore, by reducing the current adjustment ratio of the abnormal power supply, the abnormal power supply can be controlled to reduce the output voltage according to the reduced current adjustment ratio and the reference voltage, thereby achieving control of the abnormal power supply.

[0085] In some embodiments, the control device pre-sets a value range for the adjustment ratio, such as [80%, 120%], meaning that the maximum adjustment ratio is 120% and the minimum adjustment ratio is 80%. Based on this, when the control device needs to reduce the output voltage of the abnormal power supply, it can first compare the current adjustment ratio of the abnormal power supply with the minimum adjustment ratio. If the current adjustment ratio of the abnormal power supply is greater than the minimum adjustment ratio, it can be determined that there is still room for the current adjustment ratio to be adjusted downward. Therefore, the control device can reduce the current adjustment ratio of the abnormal power supply in a linear or nonlinear manner. In this way, the control device can control the abnormal power supply to reduce the output voltage based on the reduced current adjustment ratio and a given reference voltage. However, it should be noted that, given the limitation of the minimum adjustment ratio, the current adjustment ratio cannot be reduced to a level lower than the minimum adjustment ratio.

[0086] Specifically, when linearly reducing the current regulation ratio of an abnormal power source, the control device may be pre-set with a proportional interval value, thereby reducing the current regulation ratio of the abnormal power source according to the preset proportional interval value. As an example, the regulation ratio is set to have a value range of [80%, 120%], and the proportional interval value may be 10%. For a power source with an initial regulation ratio of 120%, when an abnormality is first detected, the current regulation ratio may be reduced to 110% according to the proportional interval value of 10%. When an abnormality is detected a second time, the current regulation ratio may be further reduced to 100% according to the proportional interval value of 10%, and so on. No further details are given here.

[0087] Specifically, in the case of nonlinearly reducing the current adjustment ratio of the abnormal power supply, the control device can determine the degree of abnormality of the abnormal power supply, and then reduce the current adjustment ratio of the abnormal power supply based on the degree of abnormality. The degree of abnormality can be specifically: the proportion of the power state parameter of the abnormal power supply exceeding the preset parameter threshold. As an example only, the adjustment ratio is set to have a value range of [80%, 120%]. The real-time temperature of the abnormal power supply is 60 degrees, and the temperature threshold is 50 degrees. The proportion of the real-time temperature of the abnormal power supply exceeding the temperature threshold is 20%. Assuming that the current adjustment ratio of the abnormal power supply is 120%, the current adjustment ratio of the abnormal power supply can be reduced to 100% based on the degree of abnormality (that is, the proportion of 20%), and so on. No further details are given here.

[0088] In some embodiments, for applications requiring a linear reduction in the current regulation ratio of an abnormal power source, a multi-level output mode may be configured for the power converter of each power source, wherein each level of output mode corresponds to a regulation ratio. The control device may then determine the current regulation ratio of each power source by reading the output mode currently employed by the power converter of each power source; accordingly, the control device may subsequently reduce the current regulation ratio of the abnormal power source by adjusting the output mode employed by the power converter of the abnormal power source. When adjusting the output mode employed by the power converter of the abnormal power source, the adjustment may be performed step-by-step, rather than across levels, to avoid excessive adjustment.

[0089] In some examples, the output modes may include but are not limited to: V high Mode, V mid Mode and V low mode, where V high The adjustment ratio of the mode is 120%, V mid The adjustment ratio of the mode is 100%, V low The corresponding regulation ratio of the mode is 80%. Taking the reference voltage as 14V as an example, if the power converter of the abnormal power supply is in V high mode, the control device can control the power converter to switch to V mid mode, which can cause the output voltage of the abnormal power supply to drop from about 16.8V to about 14V. Similarly, if the power converter of the abnormal power supply is in V mid mode, the control device can control the power converter to switch to V low mode, which can reduce the output voltage of the abnormal power supply from about 14V to about 11.2V.

[0090] In some embodiments, in order to improve the reliability of the power supply circuit, after reducing the current adjustment ratio of the abnormal power supply, the control device can re-determine the current adjustment ratio of each power supply, and output a reminder message when the current adjustment ratio of each power supply is the lowest adjustment ratio. That is, each time an abnormal power supply is detected and the abnormal power supply is adjusted, it is necessary to consider whether the current adjustment ratio of all power supplies has reached the lowest adjustment ratio. If the current adjustment ratios of all power supplies have reached the lowest adjustment ratio, it means that each power supply has experienced multiple abnormalities in succession, which is one of the precursors to power failure. In this case, the control device can output a reminder message to warn of the possible risk of power failure, reminding the user that the output power of each power supply has been adjusted to the lowest level, and it is necessary for the user to check and repair the power supply circuit in advance.

[0091] In some embodiments, in an application scenario where a power supply circuit has N inputs and a single output, a competition mechanism is proposed to prevent a particular power supply from being selected as the primary output power supply for an extended period of time, thereby accelerating aging of the circuit. The competition mechanism is described in detail as follows: After reducing the current regulation ratio of the abnormal power supply (i.e., reducing the output voltage of the abnormal power supply), the real-time output voltages of each power supply are determined, and the power supply corresponding to the maximum real-time output voltage is determined as the primary output power supply. It is understood that due to the consistency of circuit components, even if different power supplies use the same regulation ratio, they cannot maintain exactly the same output voltage. Therefore, after each adjustment of the abnormal power supply, the primary output power supply can be reselected based on the real-time output voltages of each power supply, thereby achieving dynamic updating of the primary output power supply.

[0092] Taking into account that after the current regulation ratio of the abnormal power supply is changed, its output voltage needs some time to remain stable, the real-time output voltage of each power supply can be determined after reducing the current regulation ratio of the abnormal power supply (that is, reducing the output voltage of the abnormal power supply) for a preset period of time, so as to ensure the authenticity and accuracy of the real-time output voltage of each power supply collected, and determine the power supply corresponding to the maximum real-time output voltage as the main output power supply.

[0093] Of course, this competition mechanism can also be realized by optimizing the power supply circuit, which will not be described here.

[0094] In some embodiments, as previously described, the regulation ratio has a limited range. Based on this, after an abnormal power source is identified, the current regulation ratio of the abnormal power source may have reached the minimum regulation ratio. In this case, a preliminary determination can be made that a fault exists in the abnormal power source circuit. To ensure the safety of the entire power circuit, the control device may shut down the abnormal power source.

[0095] In some examples, the output mode of the i-th power supply is initially Vhigh Mode. Assuming that after T1, the i-th power supply is determined to be an abnormal power supply, the control device can control its output mode to change to V mid Mode. Assuming that after T2, the i-th power supply is again determined to be an abnormal power supply, the control device can control its output mode to change to V low Mode. Assume that after T3, the i-th power supply is once again determined to be an abnormal power supply. Since its output mode is V low mode, the current adjustment ratio can no longer be reduced, and the control device can turn off the i-th power supply.

[0096] In some embodiments, the control device may be pre-set with a parameter threshold. It will be understood that this parameter threshold demarcates the abnormal value range and normal value range of the power supply status parameter. Specifically, when the power supply status parameters include real-time output voltage, real-time output current, real-time temperature, and real-time power, the abnormal value range of the power supply status parameter is generally considered to be greater than or equal to the parameter threshold, while the normal value range of the power supply status parameter is considered to be less than the parameter threshold. Based on this, step 102 may specifically be performed as follows: comparing the power supply status parameter of each power supply with a preset parameter threshold, and determining a power supply whose power supply status parameter exceeds the parameter threshold as an abnormal power supply. Considering that power supply status parameters are typically fluctuating, to avoid false detection, the above steps may be further optimized as follows: comparing the power supply status parameter of each power supply with a preset parameter threshold, and determining a power supply whose power supply status parameter exceeds the parameter threshold for N consecutive times as an abnormal power supply, where N is a preset positive integer.

[0097] It should be noted that for the real-time output current, there is only one corresponding parameter threshold (specifically, the current threshold). Similarly, for the real-time temperature, there is also only one corresponding parameter threshold (specifically, the temperature threshold). For real-time power, the parameter threshold corresponding to each power supply can be set according to the maximum output power of each power supply (specifically, the power threshold). As for the real-time output voltage, since the current adjustment ratio of each power supply is different, a corresponding parameter threshold (specifically, the voltage threshold) can be set for each adjustment ratio.

[0098] In some examples, taking the reference voltage as 14V as an example, assuming that the output mode of the power converter of the i-th power supply is V high Mode, the output mode of the power converter of the i+1th power supply is V mid Mode, the output mode of the power converter of the i+2 power supply is V lowmode, then: the voltage threshold corresponding to the real-time output voltage of the i-th power supply is 17V, the voltage threshold corresponding to the real-time output voltage of the i+1-th power supply is 14.2V, and the voltage threshold corresponding to the real-time output voltage of the i+2-th power supply is 11.4V.

[0099] In some embodiments, the abnormal condition of the abnormal power supply may be caused by external environmental factors. Considering that some external environmental factors have a short lifespan, to achieve bidirectional regulation of the power supply, after reducing the output voltage of the abnormal power supply, if the power supply status parameter of the abnormal power supply remains less than the parameter threshold for a period of time greater than a preset time threshold, it indicates that the abnormal power supply has actually returned to normal and can operate normally for a long time. In this case, the control device may consider restoring the output voltage of the abnormal power supply; that is, restoring the output voltage of the abnormal power supply to the voltage before the reduction.

[0100] In some examples, it is assumed that the output mode of the power converter of the i-th power supply is initially V high Mode. At T1, due to overheating, the control device changes its output mode to V mid Mode. Then, for a long period of time, the i-th power supply always keeps normal operation without any abnormal situation. Then, at time T2, the control device can restore its output mode to V high Mode. Wherein, T2-T1>T0, T0 is the preset time threshold.

[0101] As can be seen from the above, in order to extend the life of the power supply, the embodiment of the present application proposes monitoring of each power supply, specifically collecting the power supply status parameters of each power supply. Since the power supply status parameters will change with the working state of the power supply, by analyzing the power supply status parameters of each power supply, it is possible to promptly determine the power supply in an abnormal state, that is, the abnormal power supply. The present application reduces the output voltage of the abnormal power supply to enable the abnormal state of the abnormal power supply to be alleviated as soon as possible, thereby avoiding the power supply from operating in an abnormal state for a long time and extending the life of the power supply. In this way, balanced output of N power supplies is achieved, ensuring the safe and reliable long-term operation of the N power supplies.

[0102] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0103] Corresponding to the power control method provided above, an embodiment of the present application further provides a power control device. This power control device is applied to a control device in a control circuit, and the output voltage of each power supply in the control circuit is determined by its respective adjustment ratio and a preset reference voltage. Referring to FIG3 , the power control device 3 in the embodiment of the present application includes:

[0104] An acquisition module 301 is configured to acquire power state parameters of each of N power supplies;

[0105] A first determining module 302 is configured to determine an abnormal power source based on power state parameters of each power source;

[0106] The first control module 303 is configured to reduce a current regulation ratio of the abnormal power supply, so as to control the abnormal power supply to reduce an output voltage according to the reduced current regulation ratio and a reference voltage.

[0107] In some embodiments, the first control module 303 includes:

[0108] The first control unit is configured to reduce a current regulation ratio of the abnormal power supply according to a preset ratio interval value.

[0109] In some implementations, the first control module 303 includes:

[0110] The second control unit is used to determine the abnormality degree of the abnormal power supply and reduce the current regulation ratio of the abnormal power supply according to the abnormality degree.

[0111] In some embodiments, the power control device 3 further includes:

[0112] A comparison module, used to compare the current regulation ratio of the abnormal power supply with a preset minimum regulation ratio;

[0113] Accordingly, the first control module 303 is specifically configured to reduce the current regulation ratio of the abnormal power supply when the current regulation ratio of the abnormal power supply is greater than the preset minimum regulation ratio, so as to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0114] In some embodiments, the power control device 3 further includes:

[0115] A second determining module is configured to determine the current regulation ratio of each power supply after reducing the current regulation ratio of the abnormal power supply;

[0116] The output module is used to output a reminder message when the current regulation ratio of each power supply is the lowest regulation ratio.

[0117] In some embodiments, the power control device 3 further includes:

[0118] a third determining module, configured to determine the real-time output voltage of each power supply after reducing the current regulation ratio of the abnormal power supply;

[0119] The fourth determining module is configured to determine the power supply corresponding to the maximum real-time output voltage as the main output power supply.

[0120] In some embodiments, the power control device 3 further includes:

[0121] The second control module is configured to, after determining a current regulation ratio of the abnormal power supply, shut down the abnormal power supply if the current regulation ratio of the abnormal power supply is a minimum regulation ratio.

[0122] In some embodiments, the first determining module 302 includes:

[0123] A comparison unit, configured to compare the power state parameters of each power supply with a preset parameter threshold value;

[0124] The second determining unit is configured to determine a power supply whose power state parameter is greater than or equal to a parameter threshold as an abnormal power supply.

[0125] In some embodiments, the power control device 3 further includes:

[0126] The third control module is used to restore the output voltage of the abnormal power supply after reducing the current regulation ratio of the abnormal power supply when the power state parameter of the abnormal power supply is continuously less than the parameter threshold and the duration is greater than the preset duration threshold.

[0127] In some embodiments, the power state parameter includes at least one of the following: real-time output voltage, real-time output current, real-time temperature, and real-time power.

[0128] As can be seen from the above, in order to extend the life of the power supply, the embodiment of the present application proposes monitoring of each power supply, specifically collecting the power supply status parameters of each power supply. Since the power supply status parameters will change with the working state of the power supply, by analyzing the power supply status parameters of each power supply, the power supply in an abnormal state, that is, the abnormal power supply, can be promptly determined. The present application reduces the output voltage of the abnormal power supply to enable the abnormal state of the abnormal power supply to be alleviated as soon as possible, thereby avoiding the power supply from operating in an abnormal state for a long time and extending the life of the power supply. In this way, balanced output of N power supplies is achieved, ensuring that the N power supplies can operate safely and reliably for a long time. Since each power supply is based on the reference voltage, the output voltage is adjusted up and down by adjusting its respective adjustment ratio. Based on this, for abnormal voltage, this embodiment quickly controls its output voltage by reducing its current adjustment ratio, simplifies the control process of the abnormal power supply, and improves the control efficiency of the abnormal power supply.

[0129] Corresponding to the power control method provided above, an embodiment of the present application also provides a control device. The control device is used to control a power supply circuit, which includes N power supplies, N≥2, and the output voltage of each power supply is determined by its own adjustment ratio and a preset reference voltage. Referring to Figure 4, the control device 4 in the embodiment of the present application includes: a memory 401, one or more processors 402 (only one is shown in Figure 4) and a computer program stored in the memory 401 and executable on the processor. Wherein: the memory 401 is used to store software programs and modules, and the processor 402 executes various functional applications and data processing by running the software programs and units stored in the memory 401 to obtain the resources corresponding to the above-mentioned preset events. Specifically, the processor 402 implements the following steps when running the above-mentioned computer program stored in the memory 401:

[0130] Obtain the power status parameters of each of N power supplies;

[0131] Determine the abnormal power supply according to the power status parameters of each power supply;

[0132] The current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0133] Assuming the first possible implementation, in a second possible implementation provided on the basis of the first possible implementation, reducing the current regulation ratio of the abnormal power supply includes:

[0134] According to the preset proportional interval value, the current regulation ratio of the abnormal power supply is reduced.

[0135] In a third possible implementation provided on the basis of the first possible implementation, reducing the current regulation ratio of the abnormal power supply includes:

[0136] Determine the degree of abnormality of the abnormal power supply;

[0137] According to the degree of abnormality, the current regulation ratio of the abnormal power supply is reduced.

[0138] In a fourth possible implementation provided on the basis of the first possible implementation, or the second possible implementation, or the third possible implementation, before reducing the current regulation ratio of the abnormal power supply, the processor 402 implements the following steps by running the computer program stored in the memory 401:

[0139] Compare the current regulation ratio of the abnormal power supply with the preset minimum regulation ratio;

[0140] Accordingly, the current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage, including:

[0141] When the current regulation ratio of the abnormal power supply is greater than the preset minimum regulation ratio, the current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

[0142] In a fifth possible implementation provided on the basis of the first possible implementation, or the second possible implementation, or the third possible implementation, after reducing the current regulation ratio of the abnormal power supply, the processor 402 further implements the following steps when executing the computer program stored in the memory 401:

[0143] Determine the current regulation ratio of each power supply;

[0144] When the current regulation ratios of the power supplies are all at the lowest regulation ratio, a reminder message is output.

[0145] In a sixth possible implementation provided on the basis of the first possible implementation, or the second possible implementation, or the third possible implementation, after reducing the current regulation ratio of the abnormal power supply, the processor 402 further implements the following steps when executing the computer program stored in the memory 401:

[0146] Determine the real-time output voltage of each power supply;

[0147] The power supply corresponding to the maximum real-time output voltage is determined as the main output power supply.

[0148] In a seventh possible implementation provided on the basis of the first possible implementation, or the second possible implementation, or the third possible implementation, after determining the current regulation ratio of the abnormal power supply, the processor 402 further implements the following steps when executing the computer program stored in the memory 401:

[0149] When the current regulation ratio of the abnormal power supply is the lowest regulation ratio, the abnormal power supply is turned off.

[0150] In an eighth possible implementation provided on the basis of the first possible implementation, or the second possible implementation, or the third possible implementation, determining an abnormal power supply according to power supply status parameters of each power supply includes:

[0151] Comparing the power status parameters of each power supply with the preset parameter thresholds respectively;

[0152] A power supply whose power supply status parameter is greater than a parameter threshold is determined as an abnormal power supply.

[0153] In a ninth possible implementation provided based on the eighth possible implementation, after reducing the output voltage of the abnormal power supply, the processor 402 further implements the following steps when executing the computer program stored in the memory 401:

[0154] When the power state parameter of the abnormal power supply is continuously less than or equal to the parameter threshold and the duration thereof is longer than a preset duration threshold, the output voltage of the abnormal power supply is restored.

[0155] In a tenth possible implementation provided based on the first possible implementation, or the second possible implementation, or the third possible implementation, or the fourth possible implementation, or the fifth possible implementation, or the sixth possible implementation, or the seventh possible implementation, or the eighth possible implementation, or the ninth possible implementation, the power supply status parameters include at least one of the following: real-time output voltage, real-time output current, real-time temperature, and real-time power.

[0156] It should be understood that in the embodiment of the present application, the processor 402 may be a central processing unit (CPU), and may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0157] The memory 401 may include a read-only memory and a random access memory, and provides instructions and data to the processor 402. A portion or all of the memory 401 may also include a non-volatile random access memory. For example, the memory 401 may also store device type information.

[0158] As can be seen from the above, in order to extend the life of the power supply, the embodiment of the present application proposes monitoring of each power supply, specifically collecting the power supply status parameters of each power supply. Since the power supply status parameters will change with the working state of the power supply, by analyzing the power supply status parameters of each power supply, the power supply in an abnormal state, that is, the abnormal power supply, can be promptly determined. The present application reduces the output voltage of the abnormal power supply to enable the abnormal state of the abnormal power supply to be alleviated as soon as possible, thereby avoiding the power supply from operating in an abnormal state for a long time and extending the life of the power supply. In this way, balanced output of N power supplies is achieved, ensuring that the N power supplies can operate safely and reliably for a long time. Since each power supply is based on the reference voltage, the output voltage is adjusted up and down by adjusting its respective adjustment ratio. Based on this, for abnormal voltage, this embodiment quickly controls its output voltage by reducing its current adjustment ratio, simplifies the control process of the abnormal power supply, and improves the control efficiency of the abnormal power supply.

[0159] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the above-mentioned device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0160] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0161] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of external device software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0162] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the system embodiments described above are merely schematic. For example, the division of the above modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0163] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0164] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the associated hardware through a computer program. The above-mentioned computer program can be stored in a computer-readable storage medium, and the computer program, when executed by the processor, can implement the steps of the above-mentioned various method embodiments. Among them, the above-mentioned computer program includes computer program code, and the above-mentioned computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The above-mentioned computer-readable storage medium may include: any entity or device that can carry the above-mentioned computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer-readable memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the above-mentioned computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practices, computer-readable storage media does not include electrical carrier signals and telecommunication signals.

[0165] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A control circuit, comprising: A power supply circuit, a control device and a sampling device; wherein the power supply circuit includes N power supplies, N≥2, and each of the power supplies is provided with a power converter; the sampling device is respectively connected to each of the power supplies, and the sampling device is also connected to the control device; the control device is also connected to the power converter of each of the power supplies; The control device is used to determine an abnormal power source according to a sampling result of the sampling device, and output a control signal to a power converter of the abnormal power source.

2. The control circuit according to claim 1, wherein: Each of the power sources is also provided with a unidirectional conducting unit; wherein the conducting direction of the unidirectional conducting unit is the output direction of the power converter.

3. The control circuit according to claim 1, wherein: Each power supply is also provided with a current sampling unit; the sampling device includes: a temperature sampling device, a current sampling device and / or a voltage sampling device; wherein the sampling object of the temperature sampling device is the power converter of each power supply, the current sampling device is respectively connected to the current sampling unit of each power supply, and the voltage sampling device is respectively connected to the output line of the power converter of each power supply.

4. A power control method, the power control method being applied to a control device in a control circuit as claimed in any one of claims 1 to 3, wherein the output voltage of each power supply in the control circuit is determined by its own adjustment ratio and a preset reference voltage; the power control method comprising: Obtaining power state parameters of each of the N power supplies; Determine an abnormal power source according to the power state parameters of each power source; The current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

5. The power control method according to claim 4, wherein: The reducing the current regulation ratio of the abnormal power supply includes: According to the preset proportional interval value, the current regulation ratio of the abnormal power supply is reduced.

6. The power control method according to claim 4, wherein: The reducing the current regulation ratio of the abnormal power supply includes: determining the degree of abnormality of the abnormal power supply; According to the abnormality degree, the current regulation ratio of the abnormal power supply is reduced.

7. The power control method according to any one of claims 4 to 6, wherein: Before reducing the current regulation ratio of the abnormal power supply, the power supply control method further includes: comparing the current regulation ratio of the abnormal power supply with a preset minimum regulation ratio; Correspondingly, the reducing the current regulation ratio of the abnormal power supply to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage includes: When the current regulation ratio of the abnormal power supply is greater than the preset minimum regulation ratio, the current regulation ratio of the abnormal power supply is reduced to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

8. The power control method according to any one of claims 4 to 6, wherein: After reducing the current regulation ratio of the abnormal power supply, the power supply control method further includes: Determine the current regulation ratio of each power supply; When the current regulation ratios of the power sources are all preset minimum regulation ratios, a reminder message is output.

9. The power control method according to any one of claims 4 to 6, wherein: After reducing the current regulation ratio of the abnormal power supply, the power supply control method further includes: Determine the real-time output voltage of each power supply; The power supply corresponding to the maximum real-time output voltage is determined as the main output power supply.

10. The power control method according to any one of claims 4 to 6, wherein: After determining the current regulation ratio of the abnormal power supply, the power supply control method further includes: When the current regulation ratio of the abnormal power supply is a preset minimum regulation ratio, the abnormal power supply is turned off.

11. The power control method according to any one of claims 4 to 6, wherein: The determining of the abnormal power supply according to the power supply status parameters of each power supply includes: Respectively comparing the power state parameter of each power source with a preset parameter threshold; A power source whose power state parameter is greater than or equal to the parameter threshold is determined as an abnormal power source.

12. The power control method according to claim 11, wherein: After reducing the current regulation ratio of the abnormal power supply, the power supply control method further includes: When the power state parameter of the abnormal power supply is continuously smaller than the parameter threshold and the duration thereof is longer than a preset duration threshold, the current regulation ratio of the abnormal power supply is restored.

13. The power control method according to any one of claims 4 to 12, wherein: The power state parameter includes at least one of the following: real-time output voltage, real-time output current, real-time temperature and real-time power.

14. A power supply control device, the power supply control device being applied to a control device in a control circuit according to any one of claims 1 to 3, wherein the output voltage of each power supply in the control circuit is determined by its own adjustment ratio and a preset reference voltage, the power supply control device comprising: An acquisition module, used to acquire power state parameters of each of the N power supplies; A first determining module, configured to determine an abnormal power source according to the power state parameters of each power source; The first control module is used to reduce the current regulation ratio of the abnormal power supply to control the abnormal power supply to reduce the output voltage according to the reduced current regulation ratio and the reference voltage.

15. A control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 4 to 13 when executing the computer program.

16. A computer-readable storage medium storing a computer program, wherein the computer program implements the method according to any one of claims 4 to 13 when executed by a processor.

Images