CN107645188B - Method and system for balancing PSU and BBU charging overcurrent protection - Google Patents
Method and system for balancing PSU and BBU charging overcurrent protection Download PDFInfo
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Abstract
The application discloses charge of balanced PSU and BBUA method of stream protection, comprising: by the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp; when a charging enabling signal is received, judging whether the obtained charging current value exceeds a preset current value Iocp; if so, the charging current value is reduced to be lower than a preset current value Iocp. The method comprises the steps of calculating a preset current value Iocp in advance, judging whether the charging current value exceeds the preset current value, and reducing the charging current value if the charging current value exceeds the preset current value, so that the phenomenon that a switch assembly is burnt out due to overheating or rear-end storage equipment is damaged is avoided. Meanwhile, when a group of PSUs and BBUs is selected, the PSU with the OCP larger than the preset current value Iocp is selected, and therefore the device type selection cost is reduced. The application also provides a system, a device and a computer readable storage medium for balancing the charging overcurrent protection of the PSU and the BBU, and the beneficial effects are achieved.
Description
Technical Field
The present application relates to the field of storage servers, and in particular, to a method, a system, an apparatus, and a computer-readable storage medium for balancing PSU and BBU charging overcurrent protection.
Background
In the cloud computing era, mass data storage and transmission require a large-capacity storage carrier platform, however, in the operation process of a storage service system, in order to prevent user data from being stored in the system and lost due to abnormal interruption of external power supply, a Battery Backup Unit (BBU) is introduced in particular to protect the large-capacity storage carrier. When the BBU is used for standby power, the activity and the sufficient electric quantity of the BBU are ensured, and the BBU needs to be periodically charged and discharged. In the traditional hardware design in the field of storage servers, an alternating current to direct current Power Supply Unit (PSU) and a BBU are independent individual self-forming systems, and the hardware part of the storage system is used for completing bridging of the two systems so as to realize mutual communication and charge and discharge enabling. After the BBU is charged and enabled, the whole battery charging process of the BBU is briefly described as that when the stored electricity is low, the system is charged in a Constant Current Mode (CCM) Mode, when the electricity of the BBU battery reaches over 75%, the charging Mode is transited to a Constant Voltage Mode (CVM), and finally, the system is charged completely in the CVM until the BBU battery is fully charged.
Because the PSU and BBU have designed overcurrent Protection (OCP) respectively according to their own needs, the OCP of the two can not be considered well each other at the beginning of the design, usually in the process of PSU to BBU initial charging, before entering CCM, the beginning is to carry on the pre-charging action in the short time first, then reach the maximum charging Current very fast, when reaching the peak value of the working Current, there is a certain probability that triggered PSU or BBU's OCP. This creates a significant risk of system stability and even risk of overheating the Switching component (Switching component) burning or damaging the back-end storage Device (Device). Meanwhile, when a set of PSU and BBU is selected, a component with a relatively close OCP must be selected, the selection surface is narrow, and the device type selection cost is increased.
Therefore, how to eliminate the hidden trouble of system stability and avoid the overheating of the switch assembly to burn out or damage the back-end storage device is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The method can eliminate the hidden danger of system stability and avoid overheating and burning out or breaking out rear-end storage equipment of a switch assembly.
In order to solve the above technical problem, the present application provides a method for balancing charging overcurrent protection of a PSU and a BBU, the method including:
by the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp; where k is a constant, IimaxIs the maximum value of the theoretical charging current value;
when a charging enabling signal is received, acquiring a charging current value, and judging whether the charging current value exceeds the preset current value Iocp;
if so, reducing the charging current value to be lower than the preset current value Iocp.
Optionally, the obtaining the charging current value includes:
and acquiring the charging current value in real time.
Optionally, reducing the charging current value to be less than the preset current value Iocp includes:
and reducing the charging duty ratio to reduce the charging current value to be lower than the preset current value Iocp.
Optionally, the maximum value Ii of the theoretical charging current valuemaxThe calculation method comprises the following steps:
according to formula Iimax＝IomaxMaximum value Ii of theoretical charging current value obtained by/eta calculationmax；
Wherein, IomaxAnd eta is the BBU rated current value, and eta is the BBU charging conversion efficiency.
The application also provides a system for balancing the charging overcurrent protection of the PSU and the BBU, and the system comprises:
a calculation module for calculating the value of Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp; where k is a constant, IimaxIs the maximum value of the theoretical charging current value;
the receiving module is used for receiving a charging enabling signal;
the acquisition judging module is used for acquiring a charging current value when a charging enabling signal is received, and judging whether the charging current value exceeds the preset current value Iocp;
the adjusting module is used for reducing the charging current value below the preset current value Iocp when the charging current value exceeds the preset current value Iocp.
Optionally, the obtaining and determining module includes:
and the real-time acquisition submodule is used for acquiring the charging current value in real time.
Optionally, the adjusting module includes:
and the adjusting submodule is used for reducing the charging duty ratio to enable the charging current value to be reduced to be lower than the preset current value Iocp.
The application also provides a device for balancing the charging overcurrent protection of the PSU and the BBU, which comprises:
a memory for storing a computer program;
a processor for implementing the steps of the method of balancing PSU and BBU charging overcurrent protection as claimed in any one of the above when executing the computer program.
The application also provides a computer-readable storage medium for balancing the PSU and BBU charging overcurrent protection, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for balancing the PSU and BBU charging overcurrent protection are realized.
The method for balancing PSU and BBU charging overcurrent protection provided by the application firstly uses a formula Iocp (i) ═ k × IimaxCalculating to obtain a preset current value Iocp; where k is a constant, IimaxIs the maximum value of the theoretical charging current value; when receiving a charging enabling signal, acquiring a charging current value, and judging whether the charging current value exceeds a preset current value Iocp; if so, the charging current value is reduced to be lower than a preset current value Iocp.
According to the technical scheme, the preset current value Iocp is calculated in advance, whether the charging current value exceeds the preset current value or not is judged, if yes, the charging current value is reduced to be lower than the preset current value Iocp, and the situation that OCP is triggered due to overlarge charging current value is avoided, so that the hidden danger of system stability is eliminated, and the situation that a switch assembly is burnt out due to overheating or rear-end storage equipment is damaged is also avoided. Meanwhile, when a group of PSUs and BBUs is selected, the PSU with the OCP larger than the preset current value Iocp is selected, the selection surface is wide, and the device type selection cost is reduced.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for balancing PSU and BBU charging overcurrent protection according to an embodiment of the present application;
fig. 2 is a structural diagram of a system for balancing the charging overcurrent protection of the PSU and the BBU according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of another system for balancing PSU and BBU charging overcurrent protection according to an embodiment of the present disclosure;
fig. 4 is a structural diagram of a device for balancing the PSU and BBU charging overcurrent protection according to an embodiment of the present application.
Detailed Description
The core of the application is to provide a method, a system, a device and a computer readable storage medium for balancing PSU and BBU charging overcurrent protection, the method can eliminate the hidden trouble of system stability, and avoid the overheating of a switch assembly to burn out or damage a rear-end storage device.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a flowchart of a method for balancing PSU and BBU charging overcurrent protection according to an embodiment of the present application.
The method specifically comprises the following steps:
s101: by the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp;
when connected to BBU, the processor passes the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp;
where k is a magnification factor and is a constant, a preferred range may be 1.3-1.5; iimaxIs the maximum value of the theoretical charging current value;
alternatively, it may be according to formula Iimax＝IomaxMaximum value Ii of theoretical charging current value obtained by/eta calculationmax(ii) a Io heremaxThe BBU is a rated current value of the BBU, and eta is the BBU charging conversion efficiency, and can be obtained according to a specification table of the BBU;
optionally, before selecting the PSU corresponding to the BBU, a preset current value Iocp may be obtained by formula calculation, and then the PSU having an OCP larger than the preset current value Iocp is selected;
it should be noted that, for a specific BBU, this step may be executed only once in order to simplify the operation steps, save the running memory, and improve the running efficiency.
S102: when receiving a charging enable signal, acquiring a charging current value;
when the processor receives the charging enabling signal, acquiring a charging current value output by the PSU;
the storage system periodically detects the electric quantity information of the BBU battery, and when the electric quantity of the storage system is lower than the preset requirement of the system, the storage system sends a charging enabling signal to the PSU; secondly, in order to keep the activity of the BBU battery, a charging enabling signal is sent to the PSU when the BBU battery is periodically subjected to self-charging and self-discharging (battery charging); after receiving the charging enable signal, the PSU charges the BBU;
alternatively, the charging current value output by the PSU may be obtained in real time.
S103: judging whether the charging current value exceeds a preset current value Iocp or not;
and judging whether the acquired charging current value exceeds a preset current value Iocp, if so, entering step S104.
S104: the charging current value is reduced to below the preset current value Iocp.
Alternatively, the charging duty cycle of the PSU may be adjusted down to decrease the charging current value below the preset current value Iocp.
Based on the technical scheme, the method for balancing the PSU and BBU charging overcurrent protection, provided by the application, is characterized in that the preset current value Iocp is calculated in advance, whether the charging current value exceeds the preset current value is judged, if yes, the charging current value is reduced to be lower than the preset current value Iocp, and OCP (optical clock pulse) triggering caused by overlarge charging current value is avoided, so that the hidden danger of system stability is eliminated, and overheating burning or damage to rear-end storage equipment of a switch assembly is also avoided. Meanwhile, when a group of PSUs and BBUs is selected, the PSU with the OCP larger than the preset current value Iocp is selected, the selection surface is wide, and the device type selection cost is reduced.
Referring to fig. 2, fig. 2 is a structural diagram of a system for balancing PSU and BBU charging overcurrent protection according to an embodiment of the present application.
The system may include:
a calculation module 100 for calculating the difference between the formula Iocp and k × IimaxCalculating to obtain a preset current value Iocp; where k is a constant, IimaxIs the maximum value of the theoretical charging current value;
a receiving module 200, configured to receive a charging enable signal;
the obtaining and judging module 300 is configured to obtain a charging current value when the charging enable signal is received, and judge whether the charging current value exceeds a preset current value Iocp;
the adjusting module 400 is configured to decrease the charging current value to be less than the preset current value Iocp when the charging current value exceeds the preset current value Iocp.
Referring to fig. 3, fig. 3 is a structural diagram of another system for balancing PSU and BBU charging overcurrent protection according to an embodiment of the present application.
The obtaining determination module 300 may include:
and the real-time acquisition submodule is used for acquiring the charging current value in real time.
The adjustment module 400 may include:
and the adjusting submodule is used for reducing the charging duty ratio to enable the charging current value to be reduced to be lower than the preset current value Iocp.
The various components of the above system may be applied to one practical process of:
the calculation module calculates the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp, and when the receiving module receives a charging enabling signal, the obtaining and judging module obtains the charging current value in real time and judges whether the charging current value exceeds the preset current value Iocp or not; when the charging current value exceeds the preset current value Iocp, the adjusting module reduces the charging duty ratio to reduce the charging current value.
Referring to fig. 4, fig. 4 is a structural diagram of a device for balancing PSU and BBU charging overcurrent protection according to an embodiment of the present application.
The apparatus may vary widely due to configuration or performance differences and may include one or more processors (CPUs) 522 (e.g., one or more processors) and memory 532, one or more storage media 530 (e.g., one or more mass storage devices) storing applications 542 or data 544. Memory 532 and storage media 530 may be, among other things, transient storage or persistent storage. The program stored on the storage medium 530 may include one or more modules (not shown), each of which may include a sequence of instruction operations for the device. Still further, the central processor 522 may be configured to communicate with the storage medium 530 to execute a series of instruction operations in the storage medium 530 on the apparatus 500.
The device 500 may also include one or more power supplies 526, one or more wired or wireless network interfaces 550, one or more input-output interfaces 558, and/or one or more operating systems 541, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, and so forth.
The steps in the method for balancing the PSU and the BBU charging overcurrent protection described in fig. 1 are implemented by a device for balancing the PSU and the BBU charging overcurrent protection based on the structure shown in fig. 4.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a function calling device, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The method, system, apparatus and computer readable storage medium for balancing the charging overcurrent protection of the PSU and the BBU provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (4)
1. A method for balancing charging overcurrent protection of a PSU and a BBU is characterized by comprising the following steps:
before selecting a PSU corresponding to a BBU, k × Ii is calculated by the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp so as to select a PSU (power supply unit) with the OCP larger than the preset current value Iocp; where k is a constant, IimaxIs the maximum value of the theoretical charging current value;
when a charging enabling signal is received, acquiring a charging current value, and judging whether the charging current value exceeds the preset current value Iocp;
if so, reducing the charging current value to be lower than the preset current value Iocp;
wherein the obtaining of the charging current value includes:
acquiring the charging current value in real time;
reducing the charging current value to be below the preset current value Iocp, including:
reducing the charging duty ratio to enable the charging current value to be reduced to be lower than the preset current value Iocp;
maximum value Ii of the theoretical charging current valuemaxThe calculation method comprises the following steps:
according to formula Iimax＝IomaxMaximum value Ii of theoretical charging current value obtained by/eta calculationmax；
Wherein, IomaxThe rated current value of the BBU is defined, and eta is the charging conversion efficiency of the BBU;
the case of receiving the charge enable signal includes:
the storage system periodically detects the BBU battery electric quantity information, and when the electric quantity of the storage system is lower than a system preset requirement, the storage system sends a charging enabling signal to the PSU;
and/or the BBU battery itself is used for keeping activity, and a charging enabling signal is sent to the PSU when the battery is periodically charged and discharged automatically (battery charging); and after receiving the charging enable signal, the PSU charges the BBU.
2. A system for balancing PSU and BBU charging overcurrent protection, comprising:
a calculation module for, before selecting a PSU corresponding to a BBU, calculating a target object by using the formula Iocp ═ k × IimaxCalculating to obtain a preset current value Iocp so as to select a PSU (power supply unit) with the OCP larger than the preset current value Iocp; where k is a constant, IimaxIs the maximum value of the theoretical charging current value;
the receiving module is used for receiving a charging enabling signal;
the acquisition judging module is used for acquiring a charging current value when a charging enabling signal is received, and judging whether the charging current value exceeds the preset current value Iocp;
the adjusting module is used for reducing the charging current value below a preset current value Iocp when the charging current value exceeds the preset current value Iocp;
wherein, the obtaining and judging module comprises:
the real-time obtaining submodule is used for obtaining the charging current value in real time;
the adjustment module includes:
the adjusting submodule is used for reducing the charging duty ratio to enable the charging current value to be reduced to be lower than the preset current value Iocp;
the maximum value Ii of the theoretical charging current value in the calculation modulemaxThe calculation method comprises the following steps:
according to formula Iimax＝IomaxMaximum value Ii of theoretical charging current value obtained by/eta calculationmax；
Wherein, IomaxThe rated current value of the BBU is defined, and eta is the charging conversion efficiency of the BBU;
the condition of receiving the charging enable signal in the acquisition and judgment module includes:
the storage system periodically detects the BBU battery electric quantity information, and when the electric quantity of the storage system is lower than a system preset requirement, the storage system sends a charging enabling signal to the PSU;
and/or the BBU battery itself is used for keeping activity, and a charging enabling signal is sent to the PSU when the battery is periodically charged and discharged automatically (battery charging); and after receiving the charging enable signal, the PSU charges the BBU.
3. The utility model provides a balanced PSU and BBU charging overcurrent protection's device which characterized in that includes:
a memory for storing a computer program;
a processor for implementing the steps of the method of balancing PSU and BBU charging overcurrent protection of claim 1 when executing the computer program.
4. A computer-readable storage medium, having stored thereon, a computer program which, when executed by a processor, performs the steps of the method of balancing PSU and BBU charge over-current protection of claim 1.
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| CN112531835A (en) * | 2020-11-30 | 2021-03-19 | 惠州Tcl移动通信有限公司 | Charging method and device of mobile terminal, storage medium and mobile terminal |
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| CN102074928A (en) * | 2009-11-20 | 2011-05-25 | 北京普源精电科技有限公司 | Constant-voltage constant-current power supply and automatic calibration method for overvoltage and overcurrent protection thereof |
| CN104467120A (en) * | 2014-12-31 | 2015-03-25 | 展讯通信（上海）有限公司 | Equipment to be charged, charging method and device of equipment to be charged, electronic equipment and charging system |
| CN106602662A (en) * | 2017-01-05 | 2017-04-26 | 北京新能源汽车股份有限公司 | Overcurrent control method for charging current, onboard charger and automobile |
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| CN103199600B (en) * | 2013-04-03 | 2015-04-08 | 深圳晶福源科技股份有限公司 | Charge control circuit and charge control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102074928A (en) * | 2009-11-20 | 2011-05-25 | 北京普源精电科技有限公司 | Constant-voltage constant-current power supply and automatic calibration method for overvoltage and overcurrent protection thereof |
| CN104467120A (en) * | 2014-12-31 | 2015-03-25 | 展讯通信（上海）有限公司 | Equipment to be charged, charging method and device of equipment to be charged, electronic equipment and charging system |
| CN106602662A (en) * | 2017-01-05 | 2017-04-26 | 北京新能源汽车股份有限公司 | Overcurrent control method for charging current, onboard charger and automobile |
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