CN211744131U

CN211744131U - Intelligent uninterrupted power supply capable of achieving ultra-long standby

Info

Publication number: CN211744131U
Application number: CN202020686239.XU
Authority: CN
Inventors: 江忠旭; 付自茂; 罗爱民
Original assignee: Wuhan Qintang Science & Technology Development Co ltd
Current assignee: Wuhan Qintang Science & Technology Development Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-10-23
Anticipated expiration: 2030-04-29

Abstract

The utility model is suitable for a power technical field provides an intelligent uninterrupted power source that can overlength standby, including the UPS power, the UPS power is external to have storage battery, the power frequency AC input end of UPS power is connected to low voltage power switch cabinet, intelligent uninterrupted power source detects the route including detecting communication module, first detection route and/or second, the utility model discloses a high voltage power switch auxiliary contact and detection route judge whether the UPS power needs output voltage, can effectively save battery power, have the high characteristics of degree of automation.

Description

Intelligent uninterrupted power supply capable of achieving ultra-long standby

Technical Field

The utility model belongs to the technical field of the power, especially, relate to an intelligent uninterrupted power source of overlength standby.

Background

The UPS is an emergency standby power supply device which is mainly used in important occasions and ensures that electric equipment can still normally work after a conventional power supply fails. However, the working mode of the emergency power supply is different according to different scenes. For example, there are places that require the UPS power supply to supply for several tens of seconds to several minutes, such as personal computer users, as long as the data is saved during the period of time. Some users need several hours to complete emergency treatment of power failure, and some places require several days, which require continuous power supply from the UPS power source after power failure.

However, in some places, the UPS power supply is required to be able to supply power at a certain time after tens of hours of power failure, and continuous power supply is not required during the power failure. Such as an automotive battery, is one example. When the ignition is started, namely when the ignition is really needed, the storage battery does not need to work when the automobile is stopped or driven.

In practical application, there are many "island" type power utilization systems, and these power utilization systems are remote in location and difficult to reach. When the external power supply is switched on, the electric system is controlled to work normally through remote automatic control. UPS power supplies provided in the system sometimes do not need to be operated all the time when the external power is removed. However, when the external power supply is restored, the UPS power supply should be started immediately to charge the automatic device in the system, so as to meet the requirement of remote control. The conventional UPS power supply is not provided with the function, and the power is still continuously output after the external power supply disappears, so that the electric quantity of the storage battery is exhausted. When the output is needed, the storage battery is exhausted and can not provide the output power supply.

The wind generator control detection system is a typical 'island' type electric facility. Each wind power generator is provided with a UPS power supply which provides emergency power supply for a control device and a measuring device of the generator. When the wind driven generator is separated from the power grid, a power supply is not arranged on one side of the generator, a measurement and control system of the generator does not need to work generally, and the UPS power supply does not need to be output to the measurement and control devices, so that the electric quantity of the storage battery can be stored to the maximum extent.

When the voltage of a power grid is transmitted to one side of the outlet switch power supply of the wind power generator, the UPS power supply is required to be output at this time, the measurement and control system of the wind power generator works, the outlet switch of the wind power generator is closed through the automatic control system, and the wind power generator enters a power generation program.

The conventional UPS power supply is not provided with the function, when the outlet switch of the wind driven generator is disconnected, the UPS power supply still continues to work, and the storage battery is exhausted after several hours. When the output of the UPS power supply is needed, the battery power is exhausted and the UPS power supply is completely disabled. The wind driven generator is mostly in a place far away from people, and the traffic is extremely inconvenient. Once the UPS power supply can not provide power, all the operations can only be manually operated before manual work, which wastes time and labor and is far from meeting the requirement of automation.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, an object of the present invention is to provide an intelligent uninterruptible power supply capable of being standby for a very long time, which aims to solve the technical problem that the existing UPS power supply cannot effectively provide power.

The utility model adopts the following technical scheme:

the intelligent uninterruptible power supply capable of being in ultra-long standby comprises a UPS (uninterrupted power supply), wherein a storage battery pack is externally connected with the UPS, a power frequency alternating current input end of the UPS is connected to a low-voltage switch cabinet on a generator side, the intelligent uninterruptible power supply comprises a detection communication module, the detection communication module comprises a logic circuit and an isolation shaping circuit, an input end of the isolation shaping circuit is connected to an auxiliary contact of a high-voltage power switch, an output end of the isolation shaping circuit is connected to the logic circuit, an output end of the logic circuit is connected to an enabling end of the UPS, the intelligent uninterruptible power supply further comprises a first detection path and/or a second detection path, the first detection path comprises a voltage transformer on a power grid side and a rectification comparison circuit on the detection communication module, and the second detection path comprises a charged inductor on the power grid side and a trigger circuit on the detection communication module, the voltage transformer is connected to the logic circuit through the rectification comparison circuit, and the charged inductor is connected to the logic circuit through the trigger circuit.

Furthermore, the detection communication module further comprises a wired communication interface and/or a wireless communication interface which is connected to the UPS power supply communication port.

The utility model has the advantages that: the utility model provides an intelligent uninterrupted power source that can overlength standby through high voltage power switch auxiliary contact and detection route, judges whether the UPS power needs output voltage, can effectively save battery power, has the characteristics that degree of automation is high.

Drawings

Fig. 1 is a schematic diagram of an intelligent uninterruptible power supply according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an intelligent ups according to an embodiment of the present invention, in which only a voltage transformer is connected;

fig. 3 is a schematic diagram of an intelligent ups according to an embodiment of the present invention, in which only a live inductor is connected;

fig. 4 is a schematic diagram of an intelligent ups according to an embodiment of the present invention in a wired communication port mode;

fig. 5 is a schematic diagram of an intelligent uninterruptible power supply according to an embodiment of the present invention in a wireless communication mode.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

As shown in fig. 1, the intelligent uninterruptible power supply capable of being standby for a very long time provided by the present embodiment includes a UPS power supply 1, the UPS power supply 1 is externally connected with a storage battery pack 2, a power frequency ac input end of the UPS power supply 1 is connected to a low-voltage switch cabinet on a generator side, the intelligent uninterruptible power supply includes a detection communication module 3, the detection communication module 3 includes a logic circuit 31 and an isolation shaping circuit 32, an input end of the isolation shaping circuit 32 is connected to an auxiliary contact 4 of a high-voltage power switch, one side of the high-voltage power switch is connected to a power grid, and the other side of the high-voltage power switch is connected to a. The output of the isolation shaping circuit 32 is connected to the logic circuit 31. The output end of the logic circuit 31 is connected to the enable end 11 of the UPS power supply 1, the intelligent UPS further includes a first detection path 5 and/or a second detection path 6, wherein the first detection path 5 includes a voltage transformer 51 located on the grid side and a rectifying comparison circuit 52 located on the detection communication module 3, the second detection path 6 includes a charged inductor 61 located on the grid side and a trigger circuit 62 located on the detection communication module 3, the voltage transformer 51 is connected to the logic circuit 31 through the rectifying comparison circuit 52, and the charged inductor 61 is connected to the logic circuit 31 through the trigger circuit 62.

The specific workflow of this embodiment is as follows:

the auxiliary contact can output a high or low level value through the isolation shaping circuit, corresponding to the on and off of the high voltage power switch.

The voltage output by the voltage transformer can also output a high or low level value through the rectifying comparison circuit, and correspondingly reflects the power on or off of the high-voltage power switch.

The charged inductor outputs a high or low level value through the trigger circuit, and correspondingly reflects the power on or power off of the high-voltage power switch.

Three states of the high-voltage power generation switch can be judged through the logic circuit according to level values output by the trigger circuit, the isolation shaping circuit and/or the rectification comparison circuit, namely: 1. a high voltage power switch on state; 2. the high-voltage power switch is in an off state but the power grid side is electrified; 3. the high voltage power switch is off but the grid side is not charged. The operation state of the UPS power supply is determined according to the three states, the command is connected to the enable end of the UPS power supply through the output end of the logic circuit, and the operation mode of the UPS power supply is changed through the change of the level value.

When the high-voltage power switch is in a connection state, the isolation shaping circuit outputs a high level, the UPS works according to a conventional uninterrupted power supply mode, namely, an alternating current power supply is input, the alternating current power supply is output to a load after rectification and inversion, an external storage battery pack is charged at the same time, and when the input alternating current power supply loses, the voltage of the storage battery pack is inverted into the alternating current power supply for output.

When the high-voltage power switch is in a disconnected state, the isolation shaping circuit outputs a low level, if the high-voltage power switch is not powered, no alternating-current input voltage exists in the UPS, the electric energy of the storage battery is not inverted into alternating-current voltage output, and the UPS does not have the alternating-current voltage output.

When the high-voltage power switch is in a disconnected state, the isolation shaping circuit outputs a low level, and if the high-voltage power switch is electrified, the UPS works to invert the electric energy of the storage battery into alternating-current voltage for output.

The circuit does not need to work simultaneously, and the purpose of changing the working mode of the UPS according to the state of the switch can be met, so that the functions can be realized through different combinations, and at least one path of the first detection path and the second detection path can work.

As shown in fig. 2, the logic circuit can determine the three states of the high-voltage power switch according to the output level of the isolation shaping circuit and the output level of the rectification comparison circuit, so as to change the operating mode of the UPS power supply. As an example, when the high-voltage power switch is in the open position, the isolation shaping circuit outputs a low level, and if the voltage transformer detects that the voltage of the high-voltage power switch is zero, the rectification comparison circuit outputs a low level, and outputs a level to the enable end of the UPS power supply through the logic circuit, so that the UPS power supply stops working and does not output an alternating-current voltage any more; when the voltage transformer detects that the high-voltage power switch has voltage, the rectification comparison circuit outputs high voltage, and the level is output to the enabling end of the UPS through the logic circuit, so that the UPS works and outputs alternating-current voltage.

As shown in fig. 3, the logic circuit can also determine the three states of the high-voltage power switch according to the output level of the isolation shaping circuit and the output level of the trigger circuit, so as to change the operating mode of the UPS power supply. As an example, when the high-voltage power switch is in the open position, the isolation shaping circuit outputs a low level, if the charged inductor detects that the high-voltage power switch has no voltage, the trigger circuit outputs a low level, and the logic circuit outputs a level to the enable end of the UPS power supply, so that the UPS power supply stops working and no ac voltage is output; if the electrified inductor detects that the high-voltage power switch has voltage, the trigger circuit outputs high level, and the logic circuit outputs the level to the enabling end of the UPS power supply, so that the UPS power supply works and outputs alternating-current voltage.

Therefore, the intelligent uninterruptible power supply capable of ultra-long standby provided by this embodiment may include only one detection path, and control the operating state of the UPS power supply in combination with the output level of the isolation shaping circuit. If the high-voltage power switch comprises two detection paths and works simultaneously, the trigger circuit and the rectification comparison circuit output high levels to judge that the high-voltage power switch is electrified, and the accuracy is ensured. In this embodiment, the logic circuit can correspondingly control the on/off of the UPS power supply only according to the high/low level input, and this can be implemented by the existing single chip microcomputer and microprocessor.

Furthermore, the detection communication module 3 further includes a wired communication interface 33 and/or a wireless communication interface 34 connected to the UPS power communication interface 12, and the working mode of the UPS power may also be instructed by the upper computer to the working state of the UPS power through the wired communication interface or the wireless communication interface.

As shown in fig. 4, when the high voltage power switch is in the open position, the remote device can download an operating status command to the UPS power source through the wired communication port, so that the UPS power source starts or stops operating.

As shown in fig. 5, when the high voltage power switch is in the open position, the remote device can download an operating status command to the UPS power source through the wireless communication interface, so that the UPS power source starts or stops operating.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An intelligent uninterruptible power supply capable of being in an ultra-long standby state comprises a UPS power supply, wherein a storage battery pack is externally connected to the UPS power supply, a power frequency alternating current input end of the UPS power supply is connected to a low-voltage switch cabinet on a generator side, the intelligent uninterruptible power supply is characterized by comprising a detection communication module, a detection communication module and a first detection path and/or a second detection path, wherein the input end of the isolation shaping circuit is connected to an auxiliary contact of a high-voltage power switch, the output end of the isolation shaping circuit is connected to the logic circuit, the output end of the logic circuit is connected to an enabling end of the UPS power supply, the first detection path comprises a voltage transformer on a power grid side and an isolation and rectification comparison circuit on the detection communication module, the second detection path comprises a charged inductor positioned on the power grid side and an isolation and trigger circuit positioned on the detection communication module, the voltage transformer is connected to the logic circuit through the rectification comparison circuit, and the charged inductor is connected to the logic circuit through the trigger circuit.

2. An intelligent UPS according to claim 1, wherein the detection communication module further comprises a wired communication interface and/or a wireless communication interface connected to the UPS power communication port.