Multi-loop multi-time-sharing power supply method for supplying power by single UPS (Uninterrupted Power Supply)

Abstract

The invention discloses a multi-loop multi-time-sharing power supply method for supplying power by a single UPS (Uninterrupted Power Supply), a UPS power supply system is used for supplying power, the UPS power supply system comprises a mains supply main circuit, a UPS module and a power utilization branch circuit, the mains supply main circuit is connected with the UPS module, and the power utilization branch circuit is connected with the UPS module; the UPS power supply module comprises a UPS power supply, a detector and a controller, the UPS power supply is connected with the commercial power supply main circuit through the power supply main circuit, the detector is arranged on the power supply main circuit, the power utilization branch circuit is connected to the UPS power supply, and the controller is arranged on the power utilization branch circuit. According to the invention, when the commercial power is effective, the commercial power is used for supplying power to the power utilization branch, when the commercial power is invalid, the single Ups power supply is used for supplying power, and accurate matching is carried out according to the power utilization duration demand of the power utilization branch, so that the demands of different power utilization durations are met, the use of a UPS power supply with a larger specification is avoided, and the overall manufacturing cost is effectively reduced; and the waste of electric power resources is also effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of UPS power supply systems, and in particular to a multi-circuit and multi-time-sharing power supply method powered by a single UPS power supply. Background Art

[0002] In recent years, with the development of science and technology and economy, there are more and more types of loads that need to be powered by UPS power supply in projects. Different types of loads have different requirements for UPS power supply backup time. Among the common requirements, there are many different durations such as 15 minutes, 30 minutes, 60 minutes, 120 minutes, 24 hours and 48 hours. Some of these different power supply durations are based on the actual needs of the user unit, and some are strictly stipulated by relevant national standards or specifications. Therefore, in engineering practice, in the same building or project, when loads with different UPS power supply requirements appear at the same time, there are generally two solutions for UPS power supply configuration. One is to configure all loads that need to be powered by UPS, regardless of their power supply duration requirements, uniformly according to the longest demand in the project, that is, use a single UPS power supply to supply power in a unified power supply duration. The other is to configure different UPS power supplies for loads with different duration requirements, that is, use multiple UPS power supplies to supply power for different duration requirements. Both of the above power supply solutions have defects. Solution 1 has the defects of waste of resources and high cost. Since it takes a long time to supply power, it is necessary to match a larger UPS power supply, which will greatly increase the cost; secondly, it will cause waste of power resources. Solution 2 can accurately match the power supply duration, but it will greatly increase the cost and is not practical in practice. The present invention provides a multi-circuit multi-time-sharing power supply method powered by a single UPS power supply to solve the above problem. Summary of the invention

[0003] The present invention provides a multi-circuit multi-time-sharing power supply method powered by a single UPS power supply, which adopts a single UPS power supply and realizes accurate matching of power supply requirements by performing time-sharing power supply on power supplies of different branches.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: A multi-circuit multi-time-sharing power supply method powered by a single UPS power supply, using a UPS power supply system for power supply, the UPS power supply system comprising a main main power supply circuit, a UPS power module and a power branch circuit, the main main power supply circuit is connected to the UPS power module, and the power branch circuit is connected to the UPS power module; The UPS power supply module comprises a UPS power supply, a detector and a controller, wherein the UPS power supply is connected to the main power supply circuit of the city power supply through the main power supply circuit, the detector is arranged on the main power supply circuit, the power consumption branch circuit is connected to the UPS power supply, and the controller is arranged on the power consumption branch circuit; The power supply method of the UPS power supply system includes the following steps: S1, circuit detection: monitor in real time whether the main power supply line of the main power supply is energized through the detector set on the main power supply line. If the main power supply is normal, the controller on the power branch line is controlled to be in a connected state, and the power branch line is directly powered by the main power; S2, power supply: when the detector detects that the mains power fails, the controller on the power branch is kept connected and powered by the UPS power supply; S3, duration control: During the power supply of the UPS power supply, the power consumption duration of each power branch is controlled by the controller. When the power supply duration reaches the requirement, the controller disconnects the power branch from the UPS power supply; S4, power supply restoration: When the detector detects that the AC power is restored, it immediately controls the controller on the disconnected power branch to be connected and the AC power is used for normal power supply.

[0005] Furthermore, in step S3, the controller connects or disconnects the power branch according to the duration.

[0006] Furthermore, in step S1, when the mains power is normally supplied, the UPS power supply is charged.

[0007] Furthermore, the controller includes a timer and a circuit breaker, the timer is used for timing, and the circuit breaker is used for connecting or disconnecting the circuit.

[0008] Furthermore, in step S2, when the mains power fails, the timer of the controller starts timing, and in step S4, when the mains power is restored, the timer of the controller is reset.

[0009] Furthermore, a plurality of power branches are arranged in parallel.

[0010] The beneficial effects of the present invention are as follows: Only a single UPS power supply is set up, and the control module is used to supply power to different branches for different durations, accurately meeting the needs of different power consumption durations, avoiding the use of larger UPS power supplies, effectively reducing the overall construction cost, and effectively avoiding the waste of power resources by accurately matching power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the UPS power supply system of the present invention; Figure 2 It is a schematic diagram of the working principle of a specific embodiment of the present invention; Figure 3 A circuit connection diagram of a specific embodiment of the present invention; Figure 4 It is a schematic diagram of control secondary wiring of a specific embodiment of the present invention.

[0012] Figure numerals: 1. Main power supply circuit; 2. UPS power module; 21. UPS power supply; 22. Detector; 23. Controller; 3. Power branch circuit. DETAILED DESCRIPTION

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0015] like Figure 1 , 2 As shown in Figures 3 and 4, a multi-circuit and multi-time-sharing power supply method powered by a single UPS power supply is used for power supply. The UPS power supply system comprises a main AC power supply line 1, a UPS power module 2 and a power branch line 3. Only one set of UPS power modules 2 is arranged in the power supply system. The main AC power supply line 1 is connected to the UPS power module 2 to charge the UPS power module 2. At the same time, the UPS power module 2 is used to detect whether the main AC power supply line 1 is energized. A plurality of power branches 3 are arranged in parallel and connected to the UPS power module 2. When the AC power is energized, the power branch 3 is directly powered by the main AC power supply line 1. When the AC power is not energized, the power branch 3 is powered by the UPS power module 2, and the power supply is accurately matched according to the power consumption time requirements of different power branches 3.

[0016] The UPS power module 2 includes a UPS power 21, a detector 22 and a controller 23. The UPS power 21 is used to receive AC power charging and discharge to the outside. When the AC power is energized, the UPS power 21 outputs high-quality and stable power after stabilizing the AC power and charges. When the AC power fails, the UPS power 21 continuously outputs stable AC power through inverter switching and conversion. The detector 22 is used to monitor in real time whether the AC power supply main line 1 is energized, and the controller 23 is used to connect or disconnect the circuit; the UPS power 21 is connected to the AC power supply main line 1 through the power supply main line, the detector 22 is arranged on the power supply main line, the power branch 3 is connected to the UPS power 21, and the controller 23 is arranged on the power branch 3.

[0017] Furthermore, the controller 23 includes a timer and a circuit breaker. The timer is used for timing. Since different power branches 3 require different power supply durations, when power is supplied by the UPS power supply 21, the power supply duration is determined by the timer. After the power supply duration reaches the standard, the circuit is cut off by the circuit breaker to stop power supply to the power branch 3. The circuit breaker is used to connect or cut off the circuit.

[0018] Furthermore, in a specific embodiment of the present invention, six power branches 3 are provided, and the six power branches 3 are connected in parallel to the UPS power supply 21, and the power consumption durations of the six power branches 3 are 15 minutes, 30 minutes, 60 minutes, 120 minutes, 24 hours and 48 hours respectively. When making specific settings, the specific power consumption duration is not limited to the above values.

[0019] Furthermore, the timing duration of the timer in the controller 23 is adjustable.

[0020] Furthermore, the detector 22 and the controller 23 are connected to each other through a secondary loop.

[0021] A multi-circuit multi-time sharing power supply method powered by a single UPS power supply specifically comprises the following steps: S1, circuit detection: monitor in real time whether the main power supply line 1 of the main power supply is energized by means of a detector 22 arranged on the main power supply line. If the main power supply is normal, the controller 23 on the power branch 3 is controlled to be in a connected state, and the power branch 3 is directly powered by the main power; S2, power supply: when the detector 22 on the main power supply circuit detects that the main power fails, the controller 23 on the power branch 3 is controlled to remain connected and the timer in the controller 23 starts timing. At this time, the power branch 3 is directly powered by the UPS power supply 21; S3, duration control: during the power supply of the UPS power supply 21, the timer of the controller 23 is used to count the time, so as to control the power consumption duration of each power branch 3. When the power supply duration reaches the duration requirement set on this line, the circuit breaker of the controller 23 disconnects the connection between the power branch 3 and the UPS power supply 21; S4, power supply restoration: When the detector 22 detects that the mains power supply is restored, the controller 23 on the disconnected power branch 3 is immediately controlled to be connected, the circuit is connected, and the timer on the power branch 3 is reset to zero, and the mains power supply is normal.

[0022] Furthermore, in step S3, the controller 23 connects or disconnects the power branch 3 according to the duration.

[0023] Furthermore, in step S1, when the city power is normally supplied, the UPS power supply 21 is charged at the same time.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A multi-circuit multi-time power supply method powered by a single UPS power supply, characterized by: A UPS power supply system is used for power supply, wherein the UPS power supply system comprises a main power supply circuit (1), a UPS power module (2) and a power consumption branch circuit (3), wherein the main power supply circuit (1) is connected to the UPS power module (2), and the power consumption branch circuit (3) is connected to the UPS power module (2); The UPS power supply module (2) comprises a UPS power supply (21), a detector (22) and a controller (23); the UPS power supply (21) is connected to a main power supply circuit (1) via a main power supply circuit; the detector (22) is arranged on the main power supply circuit; the power consumption branch circuit (3) is connected to the UPS power supply (21); and the controller (23) is arranged on the power consumption branch circuit (3); The power supply method of the UPS power supply system includes the following steps: S1, circuit detection: monitor in real time whether the main power supply circuit (1) is energized by means of a detector (22) arranged on the main power supply circuit. If the main power supply is normal, control the controller (23) on the power branch circuit (3) to be in a connected state, and directly supply power to the power branch circuit (3) through the main power supply; S2, power supply: when the detector (22) detects that the mains power fails, the controller (23) on the power branch (3) is kept connected and power is supplied through the UPS power supply (21); S3, duration control: during the period when the UPS power supply (21) is supplying power, the power consumption duration of each power branch (3) is controlled by the controller (23), and when the power supply duration reaches the requirement, the connection between the power branch (3) and the UPS power supply (21) is disconnected by the controller (23); S4, power supply restoration: when the detector (22) detects that the mains power supply is restored, the controller (23) on the disconnected power branch (3) is immediately controlled to be connected, and the mains power supply is normally restored.

2. The multi-circuit multi-time-sharing power supply method of a single UPS power supply according to claim 1, characterized in that: In step S3, the controller (23) connects or disconnects the power branch (3) according to the duration.

3. The multi-circuit multi-time-sharing power supply method of a single UPS power supply according to claim 1 is characterized in that: In step S1, when the mains power is supplied normally, the UPS power supply (21) is charged.

4. The multi-circuit multi-time-sharing power supply method of a single UPS power supply according to claim 1 is characterized in that: The controller (23) comprises a timer and a circuit breaker, wherein the timer is used for timing, and the circuit breaker is used for connecting or disconnecting a circuit.

5. The multi-circuit multi-time-sharing power supply method of a single UPS power supply according to claim 4 is characterized in that: In step S2, when the mains power fails, the timer of the controller (23) starts timing, and in step S4, when the mains power is restored, the timer of the controller (23) is reset.

6. The multi-circuit multi-time-sharing power supply method of a single UPS power supply according to claim 1, characterized in that: A plurality of power branches (3) are arranged in parallel.

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