Redundant power supply system

Abstract

The utility model provides a redundant power supply system, and belongs to the technical field of power supply systems. The redundant power supply system comprises a first power supply module, a second power supply module, a data acquisition module, a comparison module, a first switch module and a second switch module. The first commercial power system is connected with the first load through the first power supply module or the second power supply module, and the second commercial power system is connected with the second load through the second power supply module or the first power supply module. The first power supply module is connected with the second load through the first switch module, and the second power supply module is connected with the first load through the second switch module. And the data acquisition module is configured to acquire circuit signals of the first power supply module and the second power supply module. And the comparison module is configured to control the on-off states of the first switch module and the second switch module according to the circuit signals acquired by the data acquisition module. The power supply system can be automatically controlled, and the reliability of the power supply system is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power supply systems, and in particular to a redundant power supply system. Background Art

[0002] The existing power supply system generally includes two groups of power supplies, each of which is connected to a load. When one group of power supplies fails, the load connected to it will be affected, which greatly affects the reliability of the power supply system. Utility Model Content

[0003] The embodiments of the present disclosure provide a redundant power supply system to solve the problem of low reliability of the existing power supply system.

[0004] In a first aspect, an embodiment of the present disclosure provides a redundant power supply system, including:

[0005] A first power supply module, a second power supply module, a data acquisition module, a comparison module, a first switch module and a second switch module;

[0006] A first power supply module, a first end is used to connect to an external first AC power system, a second end is used to connect to an external second AC power supply system, a third end is used to connect to an external first load, and a fourth end is connected to an external second load through a first switch module.

[0007] The second power supply module has a first end for connecting to an external second AC power supply system, a second end for connecting to an external first AC power supply system, a third end for connecting to an external second load, and a fourth end connected to an external first load through a second switch module.

[0008] The data acquisition module is connected to the first power supply module, the second power supply module and the comparison module respectively, and the comparison module is connected to the first switch module and the second switch module respectively.

[0009] The data acquisition module is configured to collect circuit signals of the first power supply module and the second power supply module; the comparison module is configured to control the switch states of the first switch module and the second switch module according to the circuit signals collected by the data acquisition module.

[0010] In an exemplary embodiment of the present disclosure, the comparison module includes:

[0011] A first OR gate unit and a second OR gate unit;

[0012] The first OR gate unit has a first end for connecting to the data acquisition module and a second end for connecting to the first switch module;

[0013] The second OR gate unit has a first end for connecting to the data acquisition module, and a second end for connecting to the second switch module.

[0014] In an exemplary embodiment of the present disclosure, the data acquisition module includes:

[0015] A first data acquisition unit and a second data acquisition unit;

[0016] The first data acquisition unit is connected to the first OR gate unit, and the second data acquisition unit is connected to the second OR gate unit;

[0017] The first data acquisition unit is configured to acquire a circuit signal of the first power supply module, and the second data acquisition unit is configured to acquire a circuit signal of the second power supply module.

[0018] In an exemplary embodiment of the present disclosure, the redundant power supply system further includes:

[0019] A third switch module and a fourth switch module;

[0020] The third switch module has a first end for connecting to the third end of the first power supply module, and a second end for connecting to the first load;

[0021] The fourth switch module has a first end used to be connected to the third end of the second power supply module, and a second end used to be connected to the second load.

[0022] In an exemplary embodiment of the present disclosure, the redundant power supply system further includes:

[0023] A first indicator light and a second indicator light;

[0024] The first indicator light is arranged between the first power supply module and the second load, and the second indicator light is arranged between the second power supply module and the first load;

[0025] The first indicator light and the second indicator light are configured to indicate the switch states of the first switch module and the second switch module respectively.

[0026] In an exemplary embodiment of the present disclosure, the redundant power supply system further includes:

[0027] A first alarm module and a second alarm module;

[0028] The first alarm module and the second alarm module are both connected to the comparison module and are configured to perform fault warning.

[0029] In an exemplary embodiment of the present disclosure, the redundant power supply system further includes:

[0030] a fifth switch module and a sixth switch module;

[0031] a fifth switch module and a sixth switch module;

[0032] The fifth switch module has a first end connected to an external first mains power system, and a second end connected to a first end of the second power supply module;

[0033] The sixth switch module has a first end connected to an external second AC power system, and a second end connected to a first end of the first power supply module.

[0034] In an exemplary embodiment of the present disclosure, the redundant power supply system further includes:

[0035] Communication module;

[0036] The communication module is connected to the comparison module;

[0037] The communication module is configured to perform wireless communication with an external terminal device.

[0038] The embodiments of the present disclosure provide a redundant power supply system with the following beneficial effects:

[0039] On the one hand, the present disclosure provides two power supply modules and two switch modules, the first switch module is provided between the first power supply module and the second load, and the second switch module is provided between the second power supply module and the first load. Normally, the first AC power supply system only supplies power to the first load through the first power supply module, and the second AC power supply system only supplies power to the second load through the second power supply module. When the first power supply module fails, in order to ensure that the first load works reliably, the first AC power supply system can supply power to the first load through the second power supply module. When the second power supply module fails, in order to ensure that the second load works reliably, the second AC power supply system can supply power to the second load through the first power supply module, thereby improving the reliability of the power supply system.

[0040] On the other hand, the present disclosure also provides a data acquisition module and a comparison module, which can automatically control the switch module according to the working status of the first power supply module and the second power supply module, saving human resources and improving the power supply efficiency of the power supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1 is a structural schematic diagram of a redundant power supply system provided by an embodiment of the present disclosure;

[0043] Figure 2 It is a structural diagram of a redundant power supply system provided in another embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.

[0045] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.

[0046] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:

[0047] Figure 1 A schematic diagram of a redundant power supply system provided by an embodiment of the present disclosure. Figure 1 , the redundant power supply system includes:

[0048] A first power supply module 10 , a second power supply module 20 , a data acquisition module 30 , a comparison module 40 , a first switch module 101 and a second switch module 102 .

[0049] The first power supply module 10 has a first end for connecting to an external first AC power system 50 , a second end for connecting to an external second AC power supply system 70 , a third end for connecting to an external first load 60 , and a fourth end connected to an external second load 80 via a first switch module 101 .

[0050] The second power supply module 20 has a first end for connecting to an external AC power supply system 70 , a second end for connecting to an external first AC power supply system 50 , a third end for connecting to an external second load 80 , and a fourth end connected to an external first load 60 via a second switch module 102 .

[0051] The data acquisition module 30 is connected to the first power supply module 10 , the second power supply module 20 and the comparison module 40 , respectively. The comparison module 40 is connected to the first switch module 101 and the second switch module 102 , respectively.

[0052] The data acquisition module 30 is configured to collect circuit signals of the first power supply module 10 and the second power supply module 20 ; the comparison module 40 is configured to control the switch states of the first switch module 101 and the second switch module 102 according to the circuit signals collected by the data acquisition module 30 .

[0053] In this embodiment, the power supply system includes a first power supply module 10 and a second power supply module 20. The first power supply module 10 is used to transmit power from the first AC power system 50 to the first load 60 and the second load 80, and the second power supply module 20 is used to transmit power from the second AC power system 70 to the first load 60 and the second load 80.

[0054] Typically, the first AC power supply system 50 only supplies power to the first load 60 through the first power supply module 10 , and the second AC power supply system 70 only supplies power to the second load 80 through the second power supply module 20 .

[0055] When the first power supply module 10 fails, in order to ensure that the first load 60 works reliably, the first AC power supply system 50 can supply power to the first load 60 through the second power supply module 20 .

[0056] When the second power supply module 20 fails, in order to ensure that the second load 80 works reliably, the second AC power supply system 70 can supply power to the second load 80 through the first power supply module 10 .

[0057] The first load 60 and the second load 80 are two loads with similar power supply requirements, and the first power supply module 10 and the second power supply module 20 can output the same power supply voltage.

[0058] The data acquisition module 30 is used to collect circuit signals of the first power supply module 10 and the second power supply module 20, such as voltage signals, current signals, etc. The comparison module 40 is used to control the switch states of the first switch module 101 and the second switch module 102 according to the voltage signal or current signal collected by the data acquisition module 30. For example, when the current signal of the first power supply module 10 collected by the data acquisition module 30 is zero, indicating that the first power supply module 10 has a fault, the comparison module 40 can start the second switch module 102 according to the current signal of the first power supply module 10, so that the second power supply module 20 can supply power to the first load 60. Normally, the first switch module 101 and the second switch module 102 are in a closed state.

[0059] The comparison module 40 may be a comparator, which is used to compare the levels of two input signals and generate an output signal according to a predetermined threshold.

[0060] It can be concluded from the above that, on the one hand, the present disclosure is provided with two power supply modules and two switch modules, the first switch module 101 is provided between the first power supply module 10 and the second load 80, and the second switch module 102 is provided between the second power supply module 20 and the first load 60. Normally, the first AC power supply system 50 only supplies power to the first load 60 through the first power supply module 10, and the second AC power supply system 70 only supplies power to the second load 80 through the second power supply module 20. When the first power supply module 10 fails, in order to ensure that the first load 60 works reliably, the first AC power supply system 50 can supply power to the first load 60 through the second power supply module 20. When the second power supply module 20 fails, in order to ensure that the second load 80 works reliably, the second AC power supply system 70 can supply power to the second load 80 through the first power supply module 10, thereby improving the reliability of the power supply system.

[0061] On the other hand, the present disclosure also provides a data acquisition module 30 and a comparison module 40, which can automatically control the switch module according to the working status of the first power supply module 10 and the second power supply module 20, saving human resources and improving the power supply efficiency of the power supply system.

[0062] In one embodiment of the present disclosure, referring to Figure 2 , the comparison module 40 comprises:

[0063] A first OR gate unit 401 and a second OR gate unit 402 .

[0064] The first OR gate unit 401 has a first end for connecting to the data acquisition module 30 , and a second end for connecting to the first switch module 101 .

[0065] The second OR gate unit 402 has a first end for connecting to the data acquisition module 30 , and a second end for connecting to the second switch module 102 .

[0066] In this embodiment, the comparison module 40 may be an OR gate comparator, including a first OR gate unit 401 and a second OR gate unit 402. The first end, i.e., the input end, of the first OR gate unit 401 has two input signals, one of which is grounded and the other is connected to the data acquisition module 30. The second end, i.e., the output end, of the first OR gate unit 401 has an output signal, which is connected to the first switch module 101.

[0067] The first end or input end of the second OR gate unit 402 has two input signals, one of which is grounded and the other is connected to the data acquisition module 30. The second end or output end of the second OR gate unit 402 has an output signal, which is connected to the second switch module 102.

[0068] Assume that the input signal of the first OR gate unit 401 to ground is "0", indicating "normal", and the other input signal is the signal collected by the data acquisition module 30, which can be "0" or "1", "0" indicates "normal" and "1" indicates "fault"; if the output of the first OR gate unit 401 is "0", the first switch module 101 is disconnected, and if the output of the first OR gate unit 401 is "1", the first switch module 101 is closed.

[0069] When the signal collected by the data acquisition module 30 is "1", it indicates that a certain power supply module is faulty, and the output of the first OR gate unit 401 is "1", and the first switch module 101 is closed. When the signal collected by the data acquisition module 30 is "0", it indicates that the power supply module is normal, and the output of the first OR gate unit 401 is "0", and the first switch module 101 is disconnected.

[0070] From the above, it can be concluded that setting the first OR gate unit 401 and the second OR gate unit 402 can automatically control the states of the first switch module 101 and the second switch module 102 according to the signal of the power supply module collected by the data acquisition module 30, thereby improving the power supply efficiency of the power supply system.

[0071] In one embodiment of the present disclosure, referring to Figure 2 , the data acquisition module 30 includes:

[0072] A first data acquisition unit 301 and a second data acquisition unit 302 .

[0073] The first data acquisition unit 301 is connected to the first OR gate unit 401 , and the second data acquisition unit 302 is connected to the second OR gate unit 402 .

[0074] The first data acquisition unit 301 is configured to acquire circuit signals of the first power supply module 10 , and the second data acquisition unit 302 is configured to acquire circuit signals of the second power supply module 20 .

[0075] In this embodiment, the first data acquisition unit 301 can be used to acquire the circuit signal of the first power supply module 10 and send it to the first OR gate unit 401; the second data acquisition unit 302 can be used to acquire the circuit signal of the second power supply module 20 and send it to the second OR gate unit 402. The first data acquisition unit 301 and the second data acquisition unit 302 can be voltage sensors, current sensors, inductance sensors, etc.

[0076] In one embodiment of the present disclosure, referring to Figure 2 , the redundant power supply system also includes:

[0077] A third switch module 103 and a fourth switch module 104 .

[0078] The third switch module 103 has a first end connected to the third end of the first power supply module 10 , and a second end connected to the first load 60 .

[0079] The fourth switch module 104 has a first end for connecting to the third end of the second power supply module 20 , and a second end for connecting to the second load 80 .

[0080] In this embodiment, the third switch module 103 is disposed between the first power supply module 10 and the first load 60, and the fourth switch module 104 is disposed between the second power supply module 20 and the second load 80. The purpose of providing the third switch module 103 and the fourth switch module 104 is to save resources, and when the first load 60 or the second load 80 does not need power supply, the third switch module 103 or the fourth switch module 104 is turned off.

[0081] In one embodiment of the present disclosure, referring to Figure 2 , the redundant power supply system also includes:

[0082] A first indicator light 105 and a second indicator light 106 .

[0083] The first indicator light 105 is disposed between the first power supply module 10 and the second load 80 , and the second indicator light 106 is disposed between the second power supply module 20 and the first load 60 .

[0084] The first indicator light 105 and the second indicator light 106 are configured to indicate the switch states of the first switch module 101 and the second switch module 102 respectively.

[0085] In this embodiment, the first indicator light 105 is provided between the first power supply module 10 and the second load 80, and is used to indicate the switch state of the first switch module 101; the second indicator light 106 is provided between the second power supply module 20 and the first load 60, and is used to indicate the switch state of the second switch module 102. When the first indicator light 105 or the second indicator light 106 is always on, it indicates that the first switch module 101 or the second switch module 102 is in a closed state; when the first indicator light 105 or the second indicator light 106 is off, it indicates that the first switch module 101 or the second switch module 102 is in a disconnected state.

[0086] From the above, it can be concluded that the state of the first indicator light 105 is closely related to the state of the first switch module 101, the state of the second indicator light 106 is closely related to the state of the second switch module 102, and the first switch module 101 and the second switch module 102 are closely related to the working state of the power supply module. Therefore, it will be more intuitive to judge the working condition of the power supply module according to the states of the first indicator light 105 and the second indicator light 106.

[0087] In one embodiment of the present disclosure, referring to Figure 2 , the redundant power supply system also includes:

[0088] The first alarm module 21 and the second alarm module 22.

[0089] The first alarm module 21 and the second alarm module 22 are both connected to the comparison module 40 and are configured to perform fault warning.

[0090] In this embodiment, the first alarm module 21 is connected to the first OR gate unit 401 of the comparison module 40, and the second alarm module 22 is connected to the second OR gate unit 402 of the comparison module 40. When the comparison module 40 identifies that a power supply module has a fault, an alarm can be issued through the first alarm module 21 or the second alarm module 22. The alarm mode can be ringing a bell or flashing a light.

[0091] It can be concluded from the above that the first alarm module 21 and the second alarm module 22 can accurately understand which module has a problem and notify the technician to perform inspection and maintenance.

[0092] In one embodiment of the present disclosure, referring to Figure 2 , the redundant power supply system also includes:

[0093] The fifth switch module 107 and the sixth switch module 108 .

[0094] The fifth switch module 107 has a first end connected to the external first AC power system 50 , and a second end connected to the first end of the second power supply module 20 .

[0095] The sixth switch module 108 has a first end connected to the external second AC power system 70 , and a second end connected to the first end of the first power supply module 10 .

[0096] In this embodiment, the fifth switch module 107 is disposed between the first AC power system 50 and the second power supply module 20, and the sixth switch module 108 is disposed between the second AC power system 70 and the first power supply module 10. When the first power supply module 10 fails, the first AC power system 50 can supply power to the first load 60 through the second power supply module 20; when the second power supply module 20 fails, the second AC power system 70 can supply power to the second load 80 through the first power supply module 10.

[0097] It can be concluded from the above that, compared with the power supply method in the prior art, the present disclosure can realize: the first AC power system 50 can supply power to the first load 60 and the second load 80 through the first power supply module 10, and can also supply power to the first load 60 and the second load 80 through the second power supply module 20. The diversity of power supply methods improves the reliability of the power supply system.

[0098] In one embodiment of the present disclosure, referring to Figure 2 , the redundant power supply system also includes:

[0099] Communication module 90.

[0100] The communication module 90 is connected to the comparison module 40 .

[0101] The communication module 90 is configured to perform wireless communication with an external terminal device.

[0102] In this embodiment, the communication module 90 is connected to the comparison module 40. When the comparison module 40 identifies that the first power supply module 10 or the second power supply module 20 is faulty, the fault signal is sent to an external terminal device via wireless communication, and relevant personnel can process the fault in a timely manner after receiving the relevant signal on the terminal device. The terminal device can be a computer, a mobile phone, a control terminal, etc.

[0103] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure 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. However, 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 embodiments of the present disclosure.

Claims

1. A redundant power supply system, characterized in that: include: A first power supply module, a second power supply module, a data acquisition module, a comparison module, a first switch module and a second switch module; A first power supply module, wherein the first end is used to connect to an external first mains power system, the second end is used to connect to an external second mains power supply system, the third end is used to connect to an external first load, and the fourth end is connected to an external second load through a first switch module; A second power supply module, a first end of which is used to connect to an external second mains power supply system, a second end of which is used to connect to an external first mains power supply system, a third end of which is used to connect to an external second load, and a fourth end of which is connected to the external first load through a second switch module; The data acquisition module is connected to the first power supply module, the second power supply module and the comparison module respectively, and the comparison module is connected to the first switch module and the second switch module respectively; The data acquisition module is configured to collect circuit signals of the first power supply module and the second power supply module; the comparison module is configured to control the switch states of the first switch module and the second switch module according to the circuit signals collected by the data acquisition module.

2. The redundant power supply system according to claim 1, characterized in that: The comparison module comprises: A first OR gate unit and a second OR gate unit; The first OR gate unit has a first end for connecting to the data acquisition module and a second end for connecting to the first switch module; The second OR gate unit has a first end for connecting to the data acquisition module, and a second end for connecting to the second switch module.

3. The redundant power supply system according to claim 2, characterized in that: The data acquisition module comprises: A first data acquisition unit and a second data acquisition unit; The first data acquisition unit is connected to the first OR gate unit, and the second data acquisition unit is connected to the second OR gate unit; The first data acquisition unit is configured to acquire a circuit signal of the first power supply module, and the second data acquisition unit is configured to acquire a circuit signal of the second power supply module.

4. The redundant power supply system according to claim 1, characterized in that: Also includes: A third switch module and a fourth switch module; The third switch module has a first end for connecting to the third end of the first power supply module, and a second end for connecting to the first load; The fourth switch module has a first end used to be connected to the third end of the second power supply module, and a second end used to be connected to the second load.

5. The redundant power supply system according to claim 1, characterized in that: Also includes: A first indicator light and a second indicator light; The first indicator light is arranged between the first power supply module and the second load, and the second indicator light is arranged between the second power supply module and the first load; The first indicator light and the second indicator light are configured to indicate the switch states of the first switch module and the second switch module respectively.

6. The redundant power supply system according to claim 1, characterized in that: Also includes: A first alarm module and a second alarm module; The first alarm module and the second alarm module are both connected to the comparison module and are configured to perform fault warning.

7. The redundant power supply system according to claim 1, wherein: Also includes: a fifth switch module and a sixth switch module; The fifth switch module has a first end connected to an external first mains power system, and a second end connected to a first end of the second power supply module; The sixth switch module has a first end connected to an external second AC power system, and a second end connected to a first end of the first power supply module.

8. The redundant power supply system according to any one of claims 1 to 7, characterized in that: Also includes: Communication module; The communication module is connected to the comparison module; The communication module is configured to perform wireless communication with an external terminal device.

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