TWI743661B - Power system and operation method thereof - Google Patents

Abstract

The present disclosure provides a power system that includes a set of power devices and addressing lines. The set of power devices are electrically connected to a main power source, a standby power source and a server node. The addressing lines are electrically connected to the set of power devices, so that the set of power devices can correspond to a plurality of different addressing signals respectively. After the main power source is turned off, when the standby power source is turned on, the set of power devices are switched at different times based on a plurality of different addressing signals, thereby supplying power to the server node.

Description

Power supply system and its operation method

The present invention relates to a system and method, and particularly relates to a power supply system and operation method thereof.

At present, the backup system has been widely used in various data centers and servo power input stages. Its purpose is to improve the reliability and flexibility of power supply. In recent years, the backup circuit has been required by the system space and equipment capacity utilization rate. Gradually, individual units of the system are gradually integrated into the power unit, and then the power is distributed to the server modules in a centralized power module management method. However, the current backup system is in the main/backup power switching system, and the switching process will be affected. The inrush current is likely to cause the upstream circuit breaker to trip, causing the power supply module in the server cabinet to trip and the server to power off.

It can be seen that the above-mentioned existing backup system obviously still has inconveniences and shortcomings, and it needs to be further improved. In order to solve the above-mentioned problems, related fields have tried their best to find a solution, but for a long time, no applicable method has been developed. Therefore, how to effectively reduce and disperse the inrush current is indeed one of the current important research and development topics, and it has also become an urgent need for improvement in related fields.

The present invention provides a power supply system and an operation method thereof to solve the problems of the prior art.

In an embodiment of the present invention, the power supply system proposed by the present invention includes a set of power supply devices and addressing lines. The group of power supply devices are electrically connected to the main power supply, the backup power supply and the server node. The addressing circuit is electrically connected to the group of power supply devices, so that the group of power supply devices respectively correspond to a plurality of different addressing signals. After the main power supply is turned off, when the backup power supply is turned on, the group of power supply devices are switched at different times based on a plurality of different address signals to supply power to the server node.

In an embodiment of the present invention, the power supply system further includes a plurality of subsystems. A plurality of subsystems are electrically connected to the main power supply and the backup power supply. Each subsystem includes the group of power supply devices, addressing lines, and server nodes. After the main power supply is turned off, when the backup power supply is turned on, the plurality of subsystems A plurality of power supply devices corresponding to any one of the plurality of different addressing signals in the group power supply device are switched in a corresponding time interval.

In an embodiment of the present invention, the above-mentioned multiple power supply devices are respectively switched at different time points in the time interval based on the parameter of the disturbance time in any certain address signal.

In an embodiment of the present invention, the plurality of subsystems are a plurality of subsystem cabinets, and each power supply device is a replaceable power supply device.

In an embodiment of the present invention, the group of power supply devices are arranged in a server rack, and each power supply device is a removable power supply device.

In an embodiment of the present invention, each power supply device is an AC-DC converter.

In an embodiment of the present invention, the AC-DC converter has an automatic switching switch, and the automatic switching switch performs corresponding switching for the AC-DC converter.

In an embodiment of the present invention, the operating method of the power supply system proposed by the present invention includes a set of power supply devices and addressing lines. The operation method includes the following steps: through the addressing lines, the set of power supply devices are respectively corresponding to a plurality of Different addressing signals, among which the group of power supply devices are electrically connected to the main power supply, the backup power supply and the server node; after the main power supply is turned off, when the backup power supply is turned on, the group of power supply devices is based on a plurality of different addressing signals. Time is switched to supply power to the server node.

In an embodiment of the present invention, the power system further includes a plurality of subsystems, each of which includes the group of power devices, addressing lines, and server nodes. The operation method further includes the following steps: After the main power is turned off, when the standby When the power is turned on, a plurality of power supply devices corresponding to any one of the plurality of different address signals in the group of power supply devices in the plurality of subsystems are switched in a corresponding time interval.

In an embodiment of the present invention, the multiple power supply devices are switched at different time points in the time interval based on the parameter of the disturbance time in any address signal.

In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. With the power supply system and operation method of the present invention, the inrush current can be effectively reduced and dispersed.

Hereinafter, the above description will be described in detail by way of implementation, and a further explanation will be provided for the technical solution of the present invention.

In order to make the description of the present invention more detailed and complete, please refer to the attached drawings and various embodiments described below. The same numbers in the drawings represent the same or similar elements. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessary limitations on the present invention.

In the implementation mode and the scope of the patent application, the description of "electrical connection" can generally refer to one element being indirectly electrically coupled to another element through other elements, or one element is directly electrically connected to another element without passing through other elements. One component.

In the implementation and the scope of the patent application, the description of "connection" can generally refer to a component that indirectly communicates with another component through wired and/or wireless communication through other components, or that a component does not need to be physically connected through other components. Connect to another component.

In the implementation mode and the scope of the patent application, unless the article is specifically limited in the context, "一" and "the" can generally refer to a single or plural.

The "about", "approximately" or "approximately" used in this article are used to modify any amount that can be changed slightly, but such slight changes will not change its essence. If there is no special description in the embodiment, it means that the error range of the value modified with "about", "approximately" or "approximately" is generally allowed within 20%, preferably less than 10%. Within, and preferably within 5%.

FIG. 1 is a block diagram of a power system 100 according to an embodiment of the invention. As shown in FIG. 1, the power supply system 100 includes a set of power supply devices #1˜#N+1 and an address line 110. In terms of architecture, the group of power supply devices #1˜#N+1 are electrically connected to the main power supply 120, the backup power supply 130, and the server node 140. The address line 110 is electrically connected to the group of power supply devices #1˜#N+1, so that the group of power supply devices #1˜#N+1 respectively correspond to a plurality of different address signals. After the main power supply 120 is turned off, when the backup power supply 130 is turned on, the group of power supply devices #1˜#N+1 switch at different times based on a plurality of different address signals, thereby supplying power to the server node 140.

In practice, each of the power supply devices #1 to #N+1 has an automatic switch 150, and the automatic switch 150 is the power supply device #1 to #N+1 to perform the above-mentioned corresponding switching. For example, each of the power supply devices #1˜#N+1 can be an AC-DC converter. The main power source 120 may be city power, and the backup power source 130 may be an uninterruptible power system, a generator, and/or the like. The server node 140 in Figure 1 may be a computer host in the server.

In Figure 1, the group of power supply devices #1~#N+1 are arranged in the server rack 170, and each of the group of power supply devices #1~#N+1 is a replaceable power supply Device, so as to facilitate maintenance and/or increase or decrease the number of power supply devices in the group of power supply devices #1~#N+1.

In an embodiment of the present invention, the addressing line 110 may be a software communication bus and/or a hardware bus, and the addressing signal is composed of a software communication bus or a hardware bus and is arranged in the server rack 170. For example, the hardware bus bar can be composed of DIP switches or variable resistors/voltage, and through direct electrical connection or indirect electrical coupling, each of the power supply devices #1~#N+1 (such as: removable After entering the server rack 170, the power supply device obtains the corresponding addressing signal through the hardware bus. Or, the software communication bus can make the power supply device #1~#N+1 (such as: removable power supply device) enter the server rack 170 and specify the address through the communication method.

In order to further explain the switching mechanism of the power supply system 100 described above, please refer to FIGS. 1 to 2 at the same time. FIG. 2 is a timing diagram of the power supply system 100 in FIG. 1 during operation. After the main power supply is turned off 120, when the backup power supply 130 is turned on, since the group of power supply devices #1~#N+1 are switched at different times based on a plurality of different address signals, the group of power supply devices #1~#N+ The inrush currents I _{#1 to} I _#N+1 corresponding to 1 are scattered, so as to prevent the inrush currents from superimposing at the same time point and causing power trips.

In summary, the power supply system 100 in FIG. 1 is a redundant switching circuit architecture with low inrush current. In this new architecture, the inrush current can be effectively dispersed in a single system through the addressing signal.

FIG. 3 is a block diagram of a power system 300 according to another embodiment of the present invention. Compared with the power supply system 100 in FIG. 1 adopting a single system, the power supply system 300 in FIG. 3 is expanded to a multiple subsystem architecture. As shown in FIG. 3, the power supply system 300 includes a plurality of subsystems SS#1˜SS#M. In terms of architecture, the subsystems SS#1~SS#M are electrically connected to the main power supply 120 and the backup power supply 130. Each of the plurality of subsystems SS#1~SS#M includes a set of power supply devices #1~#N+ 1. Address the line 110 and the server node 140. The multiple server nodes 140 in Figure 3 may be part of the computer hosts in the server.

In Figure 3, a plurality of subsystems SS#1~SS#M may be a plurality of subsystem cabinets. In each subsystem cabinet, each of the group of power supply devices #1~#N+1 is a replaceable power supply device, so as to facilitate maintenance and/or increase or decrease the group of power supply devices #1~#N+ The number of power supply units in 1.

In each of the plurality of subsystems SS#1~SS#M, the addressing line 110 is electrically connected to the group of power supply devices #1~#N+1, so that the group of power supply devices #1~#N+1 respectively correspond to Multiple different address signals. For example, power device #1 obtains the first address signal and has the first address location, power device #N obtains the Nth address signal and has the Nth address location, and power device #N+1 obtains the N+1 address. The signal has the N+1th address position; therefore, each power supply device #1 in the plurality of subsystems SS#1~SS#M corresponds to the first address signal, and in the plurality of subsystems SS#1~SS#M Each power supply device #N corresponds to the Nth addressing signal, and each power supply device #N+1 in the plurality of subsystems SS#1 to SS#M corresponds to the N+1th addressing signal.

In use, after the main power supply 120 is turned off, when the backup power supply 130 is turned on, a plurality of sub-systems SS#1~SS#M corresponds to a plurality of different addresses in the group of power supply devices #1~#N+1 In the signal, multiple power supply devices of a certain address signal are switched in a corresponding time interval. For example, the plurality of power supply devices #1 corresponding to the first address signal are switched in the first time interval, and the plurality of power supply devices #N corresponding to the Nth address signal are switched in the Nth time interval, corresponding to the Nth time interval. The multiple power supply devices #N+1 of the +1 address signal are switched in the N+1th time interval, where the first time interval,..., The Nth time interval to the N+1th time interval are consecutive but do not overlap.

In order to further explain the switching mechanism of the power supply system 300 described above, please refer to FIGS. 3 to 4 at the same time. FIG. 4 is a timing diagram of the power supply system 300 in FIG. 3 during operation. After the main power supply is turned off 120, when the backup power supply 130 is turned on, the above-mentioned multiple power supply devices add disturbance time parameters based on the corresponding addressing signal to make the multiple power supply devices of the same addressing signal different in the corresponding time interval. Switch at the point in time. In practice, the parameter of the disturbance time can be a random random number.

For example, with the parameter of the disturbance time of the first address signal, in the plurality of subsystems SS#1, SS#2~SS#M, the plurality of power supply devices #1 corresponding to the first address signal are in the first time Switching is performed at different time points in the interval, so that the inrush current I _#1 generated by the multiple power supply devices #1 is dispersed in the first time interval, so as to prevent the inrush current I _#1 from being superimposed at the same time point. Causes a power trip.

In the same way, with the parameter of the disturbance time of the N+1th address signal, in the plurality of subsystems SS#1, SS#2~SS#M, the multiple power supply devices #N+1 corresponding to the N+1th address signal Switching is performed at different time points in the N+1th time interval, so that the inrush current I _#N+1 generated by the plurality of power supply devices #N+1 is dispersed in the Nth time interval, so as to avoid the inrush current I _#N+1 superimposed at the same point in time, resulting in a power trip.

In summary, the distributed switching control strategy of the power supply system 300 in Figure 3 adds jitter time to each address signal to improve the superimposition of the inrush current generated at the instant of switching of the backup circuit in the prior art, and effectively reduce The upstream circuit breaker trips, in addition to adding jitter time to each address signal, for various large data centers with M subsystems during backup switching, it can effectively prevent the power supply devices at the same address from switching at the same time The inrush current caused by superposition improves the reliability and stability of the servo power input stage circuit.

In order to further explain the operation method of the power supply system 100, 300, please refer to Figs. 1 to 5 at the same time. Fig. 5 is a flowchart of an operation method 500 of the power supply system 100, 300 according to an embodiment of the present invention. . As shown in Figure 5, the operation method 500 includes steps S501 and S502 (it should be understood that the steps mentioned in this embodiment can be adjusted according to actual needs, except for those whose order is specifically stated. It can even be executed simultaneously or partially simultaneously).

In Figures 1 and 3, the power supply systems 100 and 300 include a set of power supply devices #1˜#N+1 and an address line 110. In step S501, through the addressing line 110, the group of power supply devices #1~#N+1 respectively correspond to a plurality of different addressing signals, wherein the group of power supply devices #1~#N+1 are electrically connected to the main power supply 120 and standby The power supply 130 and the server node 140.

In step S502, after the main power supply 120 is turned off, when the backup power supply 130 is turned on, the set of power supply devices #1~#N+1 are switched at different times based on a plurality of different address signals, thereby supplying power to the server node 140.

In Figure 3, the power supply system 300 further includes a plurality of subsystems SS#1~SS#M, each of the plurality of subsystems SS#1~SS#M includes the group of power supply devices #1~#N+1, The line 110 and the server node 140 are addressed. In the operation method 500, after the main power supply 120 is turned off, when the backup power supply 130 is turned on, a plurality of sub-systems SS#1~SS#M are set to correspond to a plurality of power supply devices #1~#N+1 in the group A plurality of power supply devices of any address signal among different address signals are switched in a corresponding time interval, thereby dispersing the inrush current in each time interval.

In the operation method 500, based on the parameter of the disturbance time added to any of the above-mentioned address signals, the above-mentioned multiple power supply devices located in different subsystems but with the same address position are switched at different time points in the same time interval, thereby Avoid superimposing surge currents in the same time interval at the same time point to cause power tripping.

In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. With the power supply system 100, 300 and the operation method 500 of the present invention, the inrush current can be effectively reduced and dispersed.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the definition of the attached patent application scope.

In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious and easy to understand, the description of the attached symbols is as follows: 100, 300: power supply system 110: addressing line 120: main power supply 130: standby power supply 140: servo Device node 150: Automatic switch 170: Server rack 500: Operation method #1~#N+1: Power supply device I _#1 〜I _#N+1 : Inrush current S501, S502: Step SS#1〜SS #M: Subsystem

In order to make the above and other objectives, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows: Figure 1 is a block diagram of a power supply system according to an embodiment of the present invention; Figure 2 is a timing diagram of the power supply system of Figure 1 in operation; Figure 3 is a block diagram of a power system according to another embodiment of the present invention; Figure 4 is a timing diagram of the power supply system of Figure 3 in operation; and FIG. 5 is a flowchart of an operation method of a power supply system according to an embodiment of the present invention.

100: Power system

110: Addressing line

120: main power

130: standby power

140: server node

150: automatic switch

170: server rack

#1~#N+1: Power supply unit

Claims (10)

A power supply system includes: a set of power supply devices electrically connected to a main power supply, a backup power supply and a server node; and a certain address line which is electrically connected to the set of power supply devices so that the set of power supply devices are respectively connected through the address line Corresponding to a plurality of different addressing signals, after the main power supply is turned off, when the backup power supply is turned on, the group of power supply devices switch at different times based on the different addressing signals to supply power to the server node. The power supply system according to claim 1, further comprising: a plurality of subsystems electrically connected to the main power supply and the backup power supply, each of the subsystems includes the group of power supply devices, the addressing line and the server node, and After the main power supply is turned off, when the backup power supply is turned on, the plurality of power supply devices in the group of power supply devices in the subsystems corresponding to any address signal of the different address signals are in a corresponding time interval Switch within. The power supply system according to claim 2, wherein the plurality of power supply devices are respectively switched at different time points in the time interval based on the parameter of the disturbance time in the signal of any certain address. The power supply system according to claim 2, wherein the subsystems are a plurality of subsystem cabinets, and each of the power supply devices is a replaceable Power supply unit. The power supply system according to claim 1, wherein the group of power supply devices are arranged in a server rack, and each of the power supply devices is a removable power supply device. The power supply system according to claim 1, wherein each of the power supply devices is an AC-DC converter. The power supply system according to claim 6, wherein the AC-DC converter has an automatic switching switch, and the automatic switching switch performs corresponding switching for the AC-DC converter. An operation method of a power supply system. The power supply system includes a group of power supply devices and a certain address line. The operation method includes: electrically connecting the address lines of the group of power supply devices so that the group of power supply devices respectively correspond to plural numbers through the address lines A different addressing signal, wherein the group of power supply devices are electrically connected to a main power supply, a backup power supply and a server node; and after the main power supply is turned off, when the backup power supply is turned on, the power supply device is based on the Different addressing signals are switched at different times to supply power to the server node. The operation method according to claim 8, wherein the power supply system further includes a plurality of subsystems, and each of the subsystems includes the group of power supplies Device, the addressing circuit and the server node, the operation method further includes: after the main power supply is turned off, when the backup power supply is turned on, corresponding to some different power supply devices in the plurality of the group of power supply devices in the subsystems A plurality of power supply devices of any address signal in the address signal are switched in a corresponding time interval. The operation method according to claim 9, further comprising: switching the plurality of power supply devices at different time points in the time interval based on the parameter of the disturbance time in the signal of any certain address.

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