CN215452571U - Uninterrupted power system capable of being sequentially controlled and maintained through one key - Google Patents

Abstract

The utility model discloses an uninterruptible power supply system capable of one-key sequential control maintenance, which comprises a UPS power supply module, an output load module and an intelligent control module, wherein the UPS power supply module is connected with the output load module, and the intelligent control module is respectively connected with the UPS power supply module and the output load module. The UPS uninterrupted power source has a digital communication function, realizes uninterrupted switching of the power source and transmits the running state to the upper computer. The output load module is the rear-end electric equipment and is used for distributing electric energy. The intelligent control module controls the input and output states of the UPS power module and the running state of the output load module, and when the system breaks down, the intelligent control module rapidly makes a response to automatically switch on and off the UPS power module and carry out maintenance.

Description

Uninterrupted power system capable of being sequentially controlled and maintained through one key

Technical Field

The utility model relates to the field of power supply systems, in particular to an uninterruptible power supply system capable of one-key sequential control maintenance.

Background

The UPS is an uninterruptible power supply, and is a system device configured to solve the problem of uninterruptible power supply, in which a storage battery is connected to a host, and a module circuit such as a host inverter converts direct current power into commercial power. The power supply device is mainly used for providing stable and uninterrupted power supply for a single computer, a computer network system or other power electronic equipment, and has three basic functions of voltage stabilization, filtering and uninterrupted power supply. In the prior art, most UPS operation modes used by a substation or a power plant are a stand-alone operation mode, a dual redundant split operation mode, or a primary-backup serial redundant operation mode, and system architectures are shown in fig. 1, fig. 2, and fig. 3, respectively. In any operation mode, when the UPS is started to be put into use or is overhauled to be withdrawn, the uninterruptible power supply system always starts or overhauls the system by the input or withdrawal of the main input switch and the main output switch on the panel of the system screen cabinet. When the UPS is in fault skip bypass operation, if the UPS host machine is required to be overhauled and replaced but the load is not allowed to be powered off, the traditional mode is that the UPS host machine is switched to a bypass state through manpower, then a bypass overhauling switch is put into operation, a bypass output and UPS output end switch is withdrawn, and then the sequence of an alternating current input switch and a direct current input switch is withdrawn for operation. The stand-alone mode of operation, as shown in fig. 1, has the following manual service and restoration operations: and (4) overhauling the UPS, namely turning off an inverter switch of the UPS host, switching on a K5 switch, turning off a K4 switch, turning off a K3 switch, turning off a K2 switch and turning off a K1 switch, and after the sequential operation is finished, integrally disassembling and maintaining the UPS host. And (4) recovering the UPS: installing the repaired UPS and completing wiring, switching in a K3 switch, switching in a K4 switch, closing a K5 switch, switching in a K1 switch, switching in a K2 switch and switching in a UPS host inversion switch, and after the sequential operation is completed, the UPS normally operates and cannot cause load outage. If the switch is not switched by the operator in the sequence due to carelessness of various reasons in the maintenance process, the UPS may be damaged due to inconsistency of the phase angle and the frequency of the UPS output and the bypass power supply, and the UPS output bus is directly powered off. Station UPS load equipment belongs to precision equipment, the manufacturing cost is high, if the UPS output bus loses power, the safety of the operation of a power grid can be seriously influenced, and even serious economic loss can be caused; (2) the system has no comprehensive operational data. The loss of the main input, the power distribution switch state and the UPS host running state is automatically controlled, and great inconvenience is caused to operation and maintenance personnel for unattended stations.

Disclosure of Invention

The utility model aims to solve the problems that an UPS operation mode in the prior art lacks automatic control capability and bus power failure is easy to occur in a manual maintenance process, and provides an uninterruptible power supply system capable of one-key sequential control maintenance.

The technical scheme adopted by the utility model is as follows: the utility model provides an uninterrupted power system that ability key is in same direction as accuse and is maintained, includes UPS power module, output load module and intelligent control module, UPS power module is connected with the output load module, intelligent control module is connected with UPS power module, output load module respectively. The UPS is an uninterrupted power supply, and the UPS has a digital communication function, so that uninterrupted switching of the power supply is realized, and the running state is transmitted to an upper computer. The output load module is the rear-end electric equipment and is used for distributing electric energy. The intelligent control module controls the input and output states of the UPS power module and the running state of the output load module, and when the system breaks down, the intelligent control module rapidly makes a response to automatically switch on and off the UPS power module and carry out maintenance.

Preferably, the UPS power module includes a UPS power host, a plurality of switches are disposed at an input end and an output end of the UPS power host, one end of the switch K1 is connected with the UPS power host, the other end of the switch K1 is connected to a mains supply, one end of the switch K2 is connected to the UPS power host, the other end of the switch K2 is connected to a dc power supply, one end of the switch K3 is connected to the UPS power host, the other end of the switch K3 is connected to the mains supply, one end of the switch K4 is connected to the UPS power host, the other end of the switch K4 is connected to the output load module and one end of the switch K5, and the other end of the switch K5 is connected to the switch K3 and connected to the mains supply. The switch K1 is an alternating current input switch, the switch K2 is a direct current input switch, the switch K3 is a bypass input switch, the switch K4 is an alternating current output switch, and the switch K5 is a bypass maintenance switch.

Preferably, the switch K1, the switch K2, the switch K3, the switch K4 and the switch K5 are all switches with electric operating mechanisms and are all connected with the intelligent control module. Switch K1, switch K2, switch K3, switch K4, switch K5 receive intelligent control module's control, realize the input and output control to UPS power supply host computer.

Preferably, the output load module comprises an output alternating current bus and a plurality of branch loads, one end of the output alternating current bus is connected with the switch K4, the other end of the output alternating current bus is connected with the branch loads, a load distribution switch is arranged between the output alternating current bus and the branch loads, and the load distribution switch is connected with the intelligent control module. The load distribution switch provides overload and short-circuit protection for each precision device and is provided with a free tripping micro-contact and a switching-on and switching-off position contact, so that the safe operation of a branch circuit is ensured.

Preferably, the intelligent control module comprises a measurement and control module, a remote signaling module and an intelligent microcomputer monitoring module, the measurement and control module is respectively connected with the switch K1, the switch K2, the switch K3, the switch K4, the switch K5 and the intelligent microcomputer monitoring module, the remote signaling module is respectively connected with the load power distribution switch and the intelligent microcomputer monitoring module, and the intelligent microcomputer monitoring module is connected with the UPS power supply host. The remote signaling module is connected with the load distribution switch and monitors the operation states of the feeder line branch circuit and the main input and output switches. The intelligent microcomputer monitoring module can monitor the operation states of the feeder line branch circuit and the main input and output switches of the UPS power supply host in real time. When the system is in fault, the intelligent microcomputer monitoring module gives out sound and light alarm, and simultaneously, the intelligent microcomputer monitoring module has the functions of one-key quitting the UPS and one-key starting the UPS, so that the UPS can be automatically quitted or put into the main switch when being overhauled.

Preferably, the intelligent control module further comprises a remote monitoring module, and the remote monitoring module is connected with the intelligent microcomputer monitoring module. The intelligent microcomputer monitoring module transmits system data to the background remote monitoring module through an IEC61850 protocol form, so that remote monitoring is facilitated.

Preferably, the remote signaling module and the measurement and control module are communicated with the intelligent microcomputer monitoring module through a CAN bus.

The utility model has the following beneficial effects: (1) the UPS main switch is automatically switched on and off according to the programmed sequential logic instead of manually switching on and off the UPS main input switch and the UPS main output switch, so that the damage to the operation caused by misoperation due to manual operation is prevented; (2) when the intelligent power failure detection system is used for maintenance, online operation can be carried out without power failure, the power failure risk is reduced, the load power failure cannot be caused once the switching-on/off failure occurs in the control process, and the switching-on/off failure reason is timely informed to a user at the first time; (3) the utility model can monitor the running data of the main input switch of the UPS power supply main machine, the main output switch of the UPS power supply main machine, the feeder line branch switch and the UPS power supply main machine body in real time, realize the state of running equipment and support the out-of-limit alarm of each parameter, and the remote end can master the running state of the system in real time; (4) the utility model can realize one-key sequential control by only adding the electric operating mechanism, the measurement and control module and the microcomputer monitoring without damaging the traditional operation mode, does not need to independently add a screen body for placement, and has simple system structure and convenient maintenance.

Drawings

FIG. 1 is a diagram of a stand-alone operating system architecture.

FIG. 2 is a schematic diagram of a dual redundant split-rank operating system architecture.

Fig. 3 is a schematic diagram of an active/standby serial redundant operation system architecture.

FIG. 4 is a schematic diagram of a system architecture according to the present invention.

Wherein: 1. UPS power module, 2, output load module, 3, intelligent control module, 4, UPS power host computer, 5, output alternating current bus, 6, branch load, 7, load distribution switch, 8, measurement and control module, 9, remote signaling module, 10, intelligent microcomputer monitoring module, 11, remote monitoring module.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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 invention.

As shown in fig. 4, an uninterruptible power supply system capable of being maintained by one-key sequential control includes a UPS power module 1, an output load module 2, and an intelligent control module 3, where the UPS power module 1 is connected to the output load module 2, and the intelligent control module 3 is connected to the UPS power module 1 and the output load module 2, respectively. UPS power module 1 includes UPS power supply host 4, input and output department at UPS power supply host 4 are equipped with a plurality of switches, switch K1 one end is connected with UPS power supply host 4, the switch K1 other end inserts the electric wire netting commercial power, switch K2 one end is connected with UPS power supply host 4, the switch K2 other end inserts DC power supply, switch K3 one end is connected with UPS power supply host 4, the switch K3 other end inserts the electric wire netting commercial power, switch K4 one end is connected with UPS power supply host 4, the switch K4 other end respectively with output load module 2, switch K5 one end is connected, the switch K5 other end is connected with switch K3 and gets into the electric wire netting commercial power. Wherein switch K1, switch K2, switch K3, switch K4, switch K5 are the switch that has electric operating mechanism and all are connected with intelligent control module 3. Output load module 2 is including output alternating current bus 5 and a plurality of branch road load 6, output alternating current bus 5 one end is connected with switch K4, and the output alternating current bus 5 other end is connected with branch road load 6, is equipped with load distribution switch 7 between output alternating current bus 5 and branch road load 6, load distribution switch 7 is connected with intelligent control module 3. The intelligent control module 3 comprises a measurement and control module 8, a remote signaling module 9, an intelligent microcomputer monitoring module 10 and a remote monitoring module 11, wherein the measurement and control module 8 is respectively connected with a switch K1, a switch K2, a switch K3, a switch K4, a switch K5 and the intelligent microcomputer monitoring module 10, the remote signaling module 9 is respectively connected with a load power distribution switch 7 and the intelligent microcomputer monitoring module 10, and the intelligent microcomputer monitoring module 10 is respectively connected with a UPS power supply host 4 and the remote monitoring module 11. The remote signaling module 9 and the measurement and control module 8 are communicated with the intelligent microcomputer monitoring module 10 through a CAN bus.

When the UPS power supply host 4 needs to be replaced and withdrawn for maintenance: the UPS power supply host machine 4 is disconnected with the inverter switch, online uninterrupted UPS quitting can be carried out through a 'one-key quit' key of the intelligent microcomputer monitoring module 10, the intelligent microcomputer monitoring module 10 sends an action instruction to the measurement and control module, the measurement and control module 8 sends a closing instruction to the switch K5, the switch K5 is successfully closed, the measurement and control module 8 sends a switching-off instruction to the switch K3, the switch K3 is successfully opened, the measurement and control module 8 sends a switching-off instruction to the switch K4, the switch K4 is successfully opened, the measurement and control module 8 sends a switching-off instruction to the switch K2, the switch K2 is successfully opened, the measurement and control module 8 sends a switching-off instruction to the switch K1, and the switch K1 is successfully opened. At this time, the UPS power supply main unit 4 can be disconnected and completely removed from the maintenance.

When the UPS power supply host 4 needs to be replaced and started, the method comprises the following steps: the method comprises the steps that the overhaul of the UPS power supply main machine 4 is completed, online uninterrupted UPS starting can be carried out through a one-key starting key monitored by an intelligent microcomputer, an action instruction is sent to a measurement and control module 8 by an intelligent microcomputer monitoring module 10, a closing instruction is sent to a switch K3 by the measurement and control module 8, the switch K3 is successfully closed, the measurement and control module 8 sends a closing instruction to a switch K4, the switch K3 is successfully closed, the measurement and control module 8 sends a switching-off instruction to a switch K5, the switch K5 is successfully opened, the measurement and control module 8 sends a closing instruction to a switch K2, the switch K2 is successfully closed, the measurement and control module 8 sends a closing instruction to a switch K1, and the switch K1 is successfully closed. At the moment, the inverter switch of the UPS host is turned on, and the startup work of the UPS power supply host is completed.

In the normal operation of the above process, the remote signaling module 9 and the intelligent microcomputer monitoring module 10 monitor the operation state of the system in real time, once a fault occurs, an alarm message is sent immediately to inform operation and maintenance personnel, and meanwhile, the intelligent microcomputer monitoring module 10 can transmit the data of the system to the background remote monitoring module 11 through the IEC61850 protocol form, so that remote monitoring is facilitated.

Claims (6)

1. An uninterrupted power system capable of being maintained in a key sequence control mode comprises a UPS power module (1) and an output load module (2), and is characterized by further comprising an intelligent control module (3), wherein the UPS power module (1) is connected with the output load module (2), and the intelligent control module (3) is respectively connected with the UPS power module (1) and the output load module (2); the intelligent control module (3) comprises a measurement and control module (8), a remote signaling module (9), an intelligent microcomputer monitoring module (10) and a remote monitoring module (11); the remote monitoring module (11) is connected with the intelligent microcomputer monitoring module (10).

2. The UPS system of claim 1, wherein the UPS module (1) comprises a UPS host (4), switches are disposed at the input and output ends of the UPS host (4), one end of the switch K1 is connected to the UPS host (4), the other end of the switch K1 is connected to the mains, one end of the switch K2 is connected to the UPS host (4), the other end of the switch K2 is connected to the DC power supply, one end of the switch K3 is connected to the UPS host (4), the other end of the switch K3 is connected to the mains, one end of the switch K4 is connected to the UPS host (4), the other end of the switch K4 is connected to the output load module (2) and one end of the switch K5, and the other end of the switch K5 is connected to the switch K3 and connected to the mains.

3. The UPS system with one-touch control of claim 2, wherein the switches K1, K2, K3, K4 and K5 are all switches with electric operating mechanism and are all connected to the intelligent control module (3).

4. The uninterruptible power supply system capable of being maintained by one key sequence control of claim 1, wherein the output load module (2) comprises an output alternating current bus (5) and a plurality of branch loads (6), one end of the output alternating current bus (5) is connected with a switch K4, the other end of the output alternating current bus (5) is connected with the branch loads (6), a load distribution switch (7) is arranged between the output alternating current bus (5) and the branch loads (6), and the load distribution switch (7) is connected with the intelligent control module (3).

5. The uninterruptible power system capable of being maintained by key sequence control of claim 1, wherein the measurement and control module (8) is connected to a switch K1, a switch K2, a switch K3, a switch K4, a switch K5 and an intelligent microcomputer monitoring module (10), respectively, the remote signaling module (9) is connected to a load distribution switch (7) and the intelligent microcomputer monitoring module (10), and the intelligent microcomputer monitoring module (10) is connected to the UPS power host (4).

6. The uninterruptible power supply system capable of key-controlled maintenance according to claim 1, wherein a remote signaling module (9) and a measurement and control module (8) communicate with the intelligent microcomputer monitoring module (10) through a CAN bus.

Images