CN116169764A - System adjusting method and device under double-device power supply - Google Patents

System adjusting method and device under double-device power supply Download PDF

Info

Publication number
CN116169764A
CN116169764A CN202211457306.0A CN202211457306A CN116169764A CN 116169764 A CN116169764 A CN 116169764A CN 202211457306 A CN202211457306 A CN 202211457306A CN 116169764 A CN116169764 A CN 116169764A
Authority
CN
China
Prior art keywords
ups
internal resistance
power
dual
central computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211457306.0A
Other languages
Chinese (zh)
Inventor
王建阳
余小明
何国福
范光辉
郭梁
姚天龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Turpan Wind Power Co ltd
Original Assignee
Huaneng Turpan Wind Power Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaneng Turpan Wind Power Co ltd filed Critical Huaneng Turpan Wind Power Co ltd
Priority to CN202211457306.0A priority Critical patent/CN116169764A/en
Publication of CN116169764A publication Critical patent/CN116169764A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24—Circuit arrangements for boards or switchyards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Abstract

The invention relates to a power supply system, in particular to a system adjusting method and equipment under a double-equipment power supply, comprising the following steps: the system comprises an in-cabinet UPS, an in-station UPS, a dual-power transfer switch, a current detection module, an alarm device, a first UPS power internal resistance measurement module and a second UPS power internal resistance measurement module, wherein the in-station UPS is connected with the first UPS power internal resistance measurement module in parallel, the in-cabinet UPS is connected with the second UPS power internal resistance measurement module in parallel, one end of the dual-power transfer switch is respectively connected with the in-cabinet UPS and the in-station UPS, the other end of the dual-power transfer switch is connected with the current detection module in series, the alarm device is connected with the other end of the current detection module in series, and the alarm device is connected with electric equipment in series. The invention solves the problems of equipment offline and broken wire caused by the problems of aging, power failure, single machine failure and the like of the electric field network-related automation equipment, and improves the reliability of the use of the electric field network-related automation equipment.

Description

System adjusting method and device under double-device power supply
Technical Field
The invention relates to the field of power supply systems, in particular to a system adjusting method and device under a double-device power supply.
Background
At present, electric energy becomes one of essential basic energy sources in life of people, and it is particularly important that a power generation field is guaranteed to supply power uninterruptedly, but in actual production, even if a power failure occurs in a short time due to factors such as equipment aging, power failure and the like, the power generation field can cause huge economic loss due to the fact that electric field network-related automation equipment needs to be restarted, important data are lost, communication is interrupted when power is lost, and the like.
The UPS (abbreviated as Uninterruptible Power Supply, i.e. uninterruptible power supply) mainly comprises four parts of a rectifier, an inverter, a static switch and a storage battery and a control part, wherein the rectifier is used for converting alternating current power supply into direct current, the inverter is used for converting the direct current into high-quality alternating current and outputting the high-quality alternating current to load equipment, and the inverter always works, so that the line switching time is extremely short after power failure, and the UPS is suitable for occasions with strict requirements on power supply. The UPS mainly has the following functions: when the commercial power is interrupted or the accident fails, the UPS immediately supplies the direct current energy of the storage battery to the load continuously through the conversion of the inverter, so that the load keeps normal work and soft and hardware of the load are protected from being damaged, the computer system is ensured to continuously work for a period of time after the power failure so that a user can save the disc emergently, and the user does not influence the work or lose data due to the power failure. UPS devices typically provide protection against either over-voltage or under-voltage.
The UPS ensures the safe operation of the equipment, but the UPS reduces the capacity of a storage battery due to long-time use and also causes the problems of restarting, important data loss or power failure communication interruption of the network-related automation equipment due to self failure.
Disclosure of Invention
The invention aims to solve the technical problems that: the problems of offline and broken lines of equipment caused by aging, power failure, single machine failure and the like of electric field network-related automation equipment are solved.
In order to solve the technical problems, the invention adopts the following technical scheme:
a dual device power down system conditioning device comprising: the system comprises an in-cabinet UPS, an in-station UPS, a dual-power transfer switch, a current detection module, an alarm device, a first UPS power internal resistance measurement module, a second UPS power internal resistance measurement module and a central computer;
the in-station UPS is connected with the first UPS power supply internal resistance measuring module in parallel; the UPS in the cabinet is connected with the second UPS power supply internal resistance measuring module in parallel; two end wires of the dual-power transfer switch are respectively connected with the in-cabinet UPS and the in-station UPS, and the other end of the dual-power transfer switch is connected with the current detection module in series; the alarm device is connected with the other end of the current detection module in series; the alarm device is connected with the electric equipment in series.
In one embodiment, the current detection module transmits the detected current information and the internal resistance values detected by the first internal resistance measurement module and the second internal resistance measurement module to the central computer, and the central computer controls the alarm device to give an alarm after comparing and judging the received information.
In one embodiment, the alarm device comprises a power failure alarm device and a UPS storage battery fault alarm device;
the power-off alarm device comprises a first power supply voltage regulation module, a first information transmission module and a first self-excitation buzzer; the UPS storage battery fault alarm device comprises a second power supply voltage regulation module, a second information transmission module and a second self-excitation buzzer;
when the circuit is detected to be powered off, the central computer sends out an instruction to the power-off alarm device, and the first self-excitation buzzer sends out an alarm;
when the internal resistance of the storage battery of the in-station UPS or the in-cabinet UPS is higher than 30% of the initial internal resistance, the central computer sends out an instruction to the UPS storage battery fault alarm device, and the second self-excitation buzzer sends out an alarm.
In one embodiment, the circuit of the first UPS internal resistance measurement module is a four-wire measurement circuit; the circuit of the second UPS power supply internal resistance measuring module is a four-wire measuring method circuit.
A method of system regulation under a dual device power supply, comprising:
inputting preset current value I to central computer a The current detection module detects that the current is I x Transmitting the detection information to a central computer; central computer judgment I x Is smaller than a preset current value I a The dual power transfer switch is connected to the in-cabinet UPS; if the central computer judges I x Is greater than a preset current value I a And maintaining the current working state.
Preferably, if I x Is smaller than a preset current value I a The power-off alarm device gives an alarm.
In one embodiment, the internal resistance of the storage battery of the in-station UPS is r 0 The internal resistance detected by the first UPS internal resistance measuring module is r 1 And r is taken as 0 、r 1 Transmitting to the central computer for judgment, if r 1 <1.3r 0 Maintaining the current working state, if r 1 ＞1.3r 0 The dual power transfer switch dials to the in-cabinet UPS.
Preferably, the central computer determines r 1 ＞1.3r 0 And when the UPS storage battery fault alarm device gives an alarm, the storage battery is replaced by a new storage battery.
In one embodiment, the internal resistance of the storage battery of the in-cabinet UPS is r 2 The internal resistance detected by the second UPS internal resistance measuring module is r 3 And r is taken as 2 、r 3 Transmitting to the central computer for judgment, if r 3 <1.3r 2 Maintaining the current working state, if r 3 ＞1.3r 2 The detection information is transmitted to the central computer.
Preferably, if r 3 ＞1.3r 2 After the central computer receives the data, the UPS storage battery fault alarm device is controlled to send out a signal to replace a new storage battery.
The invention discloses a system adjusting method and equipment under a double-equipment power supply, which has the beneficial effects that compared with the prior art: the dual-power supply circuit provides independent dual-power supplies for the electric appliance, when one power supply fails and cannot supply power, the other power supply can be automatically switched to supply power, for example, when the in-station UPS fails or an accident fails, and the power supply cannot be continuously supplied for the electric appliance, the central computer receives the detection data of the current detection module and then controls the dual-power transfer switch to the circuit of the in-cabinet UPS, and an alarm is started to remind maintenance.
Meanwhile, the service life of the storage battery is related to the internal resistance of the storage battery, when the internal resistance of the storage battery reaches 1.3 times of the initial internal resistance of the storage battery, the capacity of the storage battery can be obtained to be 80% of the original capacity after the battery is subjected to the check discharge test, so that after the central computer receives the data of the in-station UPS and/or the in-cabinet UPS internal resistance measuring module in the technical scheme, if r is judged 1 ＞1.3r 0 Or r 3 ＞1.3r 2 When the UPS battery fault alarm device is controlled by the central computer, the central computer gives an alarm to remind of replacing a new battery, so that the battery in the UPS power supply can not provide enough electric quantity to maintain the normal operation of the electric appliance after the sudden accident is prevented.
The invention solves the problems of offline and broken lines of equipment caused by aging, power failure, single machine failure and the like of the electric field network-related automation equipment, improves the reliability of the use of the electric field network-related automation equipment, and forcefully promotes the centralized monitoring of new energy.
Drawings
The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of the present application and are not to be construed as limiting the application.
In the drawings of the specification:
FIG. 1 is a flow chart of a system regulation method under a dual device power supply according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the operation of a system conditioning device under dual device power in accordance with an embodiment of the present invention;
fig. 3 is a schematic operation diagram of a measurement circuit of an internal resistance measurement module of the UPS power supply according to an embodiment of the present invention.
Detailed Description
In order to describe the possible technical principles of the present application in detail, practical embodiments, objectives and effects, etc., can be achieved, the following description is made in detail with reference to the specific embodiments as exemplified and with reference to the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples and are not intended to limit the scope of protection of the present application.
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment provides a system adjusting device under a dual-device power supply, which comprises: the system comprises an in-cabinet UPS, an in-station UPS, a dual-power transfer switch, a current detection module, an alarm device, a first internal resistance measurement module, a second internal resistance measurement module and a central computer.
The UPS power supply is one uninterrupted power supply and is one power supply protector comprising energy storing unit, and the UPS power supply includes mainly rectifier, inverter, static switch and accumulator. The rectifier converts Alternating Current (AC) into Direct Current (DC), so that power pollution in commercial power is eliminated, normal operation of electronic equipment such as communication equipment and computer systems is prevented from being interfered, data loss or dead halt is avoided, and meanwhile, the storage battery is charged; the inverter is a main component and can convert direct current into alternating current for normal use of the electric appliance; the static switch is used for automatically cutting off the inverter to prevent damage when the inverter has abnormal conditions such as the fuse of the inverter is fused, short circuit and the like, and the static switch can convert the power supply into a bypass standby power supply of the UPS power supply for outputting to an electric appliance for use; the accumulator is a UPS used as a device for storing electric energy, so that when the commercial power is lost, the accumulator can invert the direct current and provide uninterrupted power for the electric appliance.
The dual-power transfer switch is an automatic switching system of power supply alternative, when the first path fails, the dual-power transfer switch automatically switches to the second path to supply power to the load, and when the second path fails, the dual-power transfer switch automatically switches to the first path to supply power to the load, thereby being suitable for switching between UPS (uninterrupted power supply) -UPS (uninterrupted power supply) power supplies, the standard switching time is less than or equal to 8ms, the power supply of electronic equipment such as communication equipment and a computer system is not caused, the reliable power supply to the load is ensured, and meanwhile, the safety of the dual-power transfer switch in the switching of different phases is ensured.
The current detection module adopts a closed-loop Hall current sensor, and consists of a primary circuit, a magnetic focusing ring, a Hall element secondary coil, an amplifier and the like. When magnetic flux generated by primary current is concentrated in a magnetic circuit through a high-quality magnetic core, the Hall element is fixed in an air gap to detect the magnetic flux, and a reverse compensation current is output through a plurality of coils wound on the magnetic core and used for counteracting the magnetic flux generated by the primary side, so that the magnetic flux in the magnetic circuit is always kept to be zero. The output end of the sensor can output current change which accurately reflects primary side current after the processing of a special circuit. The secondary side output of the open loop Hall current sensor is in direct proportion to the magnetic induction intensity at the air gap of the magnetic core, the magnetic core is made of high magnetic conduction materials, and the nonlinear and hysteresis effects are inherent characteristics of all the high magnetic conduction materials, so that the open loop Hall current sensor has poor general linearity angle, and the secondary side output of primary side signals in the rising and falling processes is different. The closed-loop Hall current sensor works in a zero magnetic flux state, so that the nonlinearity and hysteresis effect of the magnetic core do not influence the output, and better linearity and higher precision can be obtained.
The alarm device comprises a power-off alarm device and a UPS storage battery fault alarm device, wherein the power-off alarm device comprises a power supply voltage regulating module, an information transmission module and a self-excitation buzzer. The power supply voltage regulating module is used for regulating the voltage to the proper working voltage of the power-off alarm device and protecting the alarm device; the power-off detection module is used for detecting whether current exists in the circuit or an external power supply; the information transmission module can transmit signals to the central computer and give an alarm; the self-excitation buzzer is used for sending out alarm sound when receiving an alarm instruction of the central computer.
The UPS power supply internal resistance measurement module includes an internal resistance measurement circuit and a wireless infrared meter reader, and the UPS power supply internal resistance measurement module detects the UPS power supply internal resistance by adopting a four-wire measurement method, as shown in fig. 3, because the resistance of the voltmeter is large enough, the ratio of the voltmeter to the current meter is the load internal resistance. Compared with a two-wire method, the four-wire measuring method has the advantages that two more feeder lines are provided, the connection between the voltage measuring end and the two ends of the constant current source is disconnected, the separated current and voltage electrodes are used, and the impedance of the contact resistance of the wiring and the probe is eliminated. In addition, the data measured by the ammeter are transmitted to the central computer through the wireless infrared meter reading device by the infrared signal.
The central computer is used for collecting, calculating and judging data sent by the current detection module and the UPS internal resistance measurement module, giving an instruction to the dual-power transfer switch through the obtained information and controlling the starting and stopping of the alarm device: when r is 1 ＞1.3r 0 Or r 3 ＞1.3r 2 When the UPS storage battery fault alarm device is started, the central computer is responsible for calling the UPS storage battery fault alarm device to give an alarm; when I x Is smaller than a preset current value I a When the power-off alarm device is triggered by the central computer, the central computer gives an alarm and controls the dual-power transfer switch to dial to one end of the UPS in the cabinet.
In some embodiments of the invention, the in-station UPS is in parallel with the first UPS power internal resistance measurement module; the UPS in the cabinet is connected with the second UPS power supply internal resistance measuring module in parallel; two ends of the dual-power transfer switch are respectively connected with the in-cabinet UPS and the in-station UPS, and the other end of the dual-power transfer switch is connected with the current detection module in series; the alarm device is connected with the other end of the current detection module in series; the alarm device is connected with the electric equipment in series.
In some embodiments of the present invention, the current detection module transmits the detected current information to the central computer together with the internal resistance values detected by the first UPS internal resistance measurement module and the second UPS internal resistance measurement module, and the central computer controls the alarm device to alarm after comparing and judging the received information.
In some embodiments of the invention, the alarm device comprises a power outage alarm device and a UPS battery fault alarm device, and the alarm device comprises a power outage alarm device and a UPS battery fault alarm device;
the power-off alarm device comprises a first power supply voltage regulation module, a first information transmission module and a first self-excitation buzzer; the UPS storage battery fault alarm device comprises a second power supply voltage regulation module, a second information transmission module and a second self-excitation buzzer;
when the circuit is detected to be powered off, the central computer sends out an instruction to the power-off alarm device, and the first self-excitation buzzer sends out an alarm; when the internal resistance of the storage battery of the in-station UPS or the in-cabinet UPS is higher than 30% of the initial internal resistance, the central computer sends out an instruction to the UPS storage battery fault alarm device, and the second self-excitation buzzer sends out an alarm.
In some embodiments of the invention, the circuitry of the first UPS power internal resistance measurement module is a four-wire measurement circuit; the circuit of the second UPS power supply internal resistance measuring module is a four-wire measuring method circuit.
The embodiment also provides a system adjusting method under the dual-equipment power supply, which comprises the following steps:
inputting preset current value I to central computer a The current detection module detects that the current is I x Transmitting the detection information to a central computer; central computer judgment I x Is smaller than a preset current value I a Indicating that the current circuit has a fault, needing to convert power supply and giving a warning, and connecting a dual-power supply change-over switch to the UPS in the cabinet; if the central computer judges I x Is greater than a preset current value I a Indicating that the current circuit is normal, and maintaining the current working state.
If the central computer judges I x Is smaller than a preset current value I a The current circuit is powered off or has a fault, the power supply needs to be converted and a warning is sent out, at the moment, the central computer sends out a command to the power-off warning device, and the power-off warning device starts a warning.
In some embodiments of the invention, the initial internal resistance of the battery of the in-station UPS is r 0 The internal resistance detected by the first UPS internal resistance measuring module is r 1 And r is taken as 0 、r 1 Data of (c) are transmitted to the central computer for judgment, if r 1 <1.3r 0 Indicating that the battery performance of the UPS in the current station is good and keeping the current working state, if the central computer judges r 1 ＞1.3r 0 The battery performance of the UPS in the current station is only 80% of the original capacity at the highest, the battery needs to be replaced in time, and the dual-power transfer switch is switched to the UPS in the cabinet.
When the central computer judges r 1 ＞1.3r 0 And when the UPS storage battery fault alarm device sends out an alarm to remind a new storage battery to be replaced.
In some embodiments of the invention, the initial internal resistance of the battery of the in-cabinet UPS is r 2 The internal resistance detected by the second UPS internal resistance measuring module is r 3 And r is taken as 2 、r 3 Transmitting to the central computer for judgment, if r 3 <1.3r 2 Indicating that the accumulator of the UPS in the current cabinet has good performance and keeps the current working state, if the central computer judges r 3 ＞1.3r 2 The detection information is transmitted to the central computer.
If r 3 ＞1.3r 2 The battery performance of the UPS in the current station is only 80% of the original capacity, the UPS needs to be replaced in time, and the central computer controls the UPS battery fault alarm device to send out a signal to remind to replace a new battery.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and it is intended that the foregoing embodiments, while indicating embodiments of the invention, have been described above, are to be understood that they are not to be interpreted as limiting, since various changes, modifications, substitutions and alterations can be made in the above embodiments without departing from the spirit and scope of the invention, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A dual device power down system conditioning apparatus, comprising: the system comprises an in-cabinet UPS, an in-station UPS, a dual-power transfer switch, a current detection module, an alarm device, a first UPS power internal resistance measurement module, a second UPS power internal resistance measurement module and a central computer;
the in-station UPS is connected with the first UPS power supply internal resistance measuring module in parallel;
the in-cabinet UPS is connected with the second UPS power supply internal resistance measuring module in parallel;
two end wires of the dual-power transfer switch are respectively connected with the in-cabinet UPS and the in-station UPS, and the other end of the dual-power transfer switch is connected with the current detection module in series;
the alarm device is connected with the other end of the current detection module in series;
the alarm device is connected with the electric equipment in series.
2. The dual-device power-supply system regulation device of claim 1, wherein the current detection module communicates the detected current information and the internal resistance values detected by the first and second internal resistance measurement modules to the central computer;
and after comparing and judging the received information, the central computer controls the alarm device to give an alarm.
3. The dual device power down system regulation apparatus of claim 1, wherein the alarm device comprises a power down alarm device and a UPS battery fault alarm device; the power-off alarm device comprises a first power supply voltage regulation module, a first information transmission module and a first self-excitation buzzer; the UPS storage battery fault alarm device comprises a second power supply voltage regulation module, a second information transmission module and a second self-excitation buzzer;
when the circuit is detected to be powered off, the central computer sends out an instruction to the power-off alarm device, and the first self-excitation buzzer sends out an alarm;
when the internal resistance of the storage battery of the in-station UPS or the in-cabinet UPS is higher than 30% of the initial internal resistance, the central computer sends out an instruction to the UPS storage battery fault alarm device, and the second self-excitation buzzer sends out an alarm.
4. The dual device power down system conditioning apparatus as recited in claim 1 wherein the circuitry of said first UPS internal resistance measurement module and said second UPS internal resistance measurement module are four-wire measurement circuitry.
5. A method for regulating a dual-device power system using the device of any one of claims 1-4, wherein a preset current value I is input to the central computer a The current detected by the current detection module is preset as I x Transmitting the detection information to the central computer;
if the central computer judges I x Is smaller than a preset current value I a The dual power transfer switch is connected to the in-cabinet UPS; if the central computer judges I x Is greater than a preset current value I a And maintaining the current working state.
6. The method of claim 5, wherein if the central computer determines I x Is smaller than a preset current value I a The power-off alarm device gives an alarm.
7. The method for adjusting a system under a dual-device power supply according to claim 5, wherein the method for measuring the internal resistance of the storage battery of the in-station UPS comprises:
setting the internal resistance of the storage battery of the in-station UPS as r 0 The internal resistance detected by the first UPS power supply internal resistance measuring module is r 1 And r is taken as 0 、r 1 Transmitting to the central computer for comparison, if r is determined 1 <1.3r 0 Maintaining the current working state, if judging r 1 ＞1.3r 0 The dual power transfer switch dials to the in-cabinet UPS.
8. The method of dual device power down system adjustment of claim 7, wherein when said central computer determines r 1 ＞1.3r 0 And when the UPS storage battery fault alarm device sends out an alarm, and a new storage battery is replaced.
9. The method for adjusting a system under a dual-device power supply according to claim 5, wherein the method for measuring the internal resistance of the storage battery of the UPS in the cabinet comprises:
setting the internal resistance r of the storage battery of the UPS in the cabinet 2 The internal resistance detected by the second UPS power supply internal resistance measuring module is r 3 And r is taken as 2 、r 3 Transmitting to the central computer for comparison, if r is determined 3 <1.3r 2 Maintaining the current working state, if judging r 3 ＞1.3r 2 And transmitting the detection information to the central computer.
10. The method of dual device power down system adjustment of claim 8, wherein if the comparison result is r 3 ＞1.3r 2 And after receiving the data, the central computer controls the UPS storage battery fault alarm device to send out a signal and replace a new storage battery.
CN202211457306.0A 2022-11-21 2022-11-21 System adjusting method and device under double-device power supply Pending CN116169764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211457306.0A CN116169764A (en) 2022-11-21 2022-11-21 System adjusting method and device under double-device power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211457306.0A CN116169764A (en) 2022-11-21 2022-11-21 System adjusting method and device under double-device power supply

Publications (1)

Publication Number Publication Date
CN116169764A true CN116169764A (en) 2023-05-26

Family

ID=86411990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211457306.0A Pending CN116169764A (en) 2022-11-21 2022-11-21 System adjusting method and device under double-device power supply

Country Status (1)

Country Link
CN (1) CN116169764A (en)

Similar Documents

Publication Publication Date Title
CN204669077U (en) On-Line UPS
JPH077869A (en) Power supply system
JP5754750B2 (en) Wireless sensor terminal
CN210129032U (en) Device for on-line monitoring fault of current transformer
US11493544B2 (en) Electronic electricity meter
CN116169764A (en) System adjusting method and device under double-device power supply
CN107276416B (en) Switching power supply device and system
CN112710891B (en) Branch switch power-off and power-on monitoring sensor, system and method
CN206481104U (en) Distribution system and distribution network
CN114720902B (en) Direct-current power supply fault rapid isolation system for transformer substation
CN216052061U (en) Intelligent detection equipment of drop-out fuse
CN211377692U (en) Power management circuit applied to intelligent terminal
CN209979769U (en) Collection terminal is equipped with electric patch box
US20010050561A1 (en) Capacity testing method and arrangement
CN205921446U (en) Device that cuts off power supply is prevented to intelligent ammeter auxiliary power supply dual supply
CN216927435U (en) Power-loss automatic alarm closing mechanism for power plant control system
CN219831361U (en) Safety control system of mutual inductor
CN217508350U (en) Power supply system
JPS58136154A (en) Power failure information transmitting method
CN115514067B (en) Energy storage battery pack management system device
CN218940767U (en) Power supply switching system and power supply
CN214799042U (en) Industrial alternating current monitoring and management system
KR102158243B1 (en) Remote circuit breaker monitoring system
CN219499250U (en) Turbogenerator excitation system
CN210016318U (en) Device for equipment detection and fault handling in solar and wind energy system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination