CN204290466U - A kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel - Google Patents

A kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel Download PDF

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Publication number
CN204290466U
CN204290466U CN201420426033.8U CN201420426033U CN204290466U CN 204290466 U CN204290466 U CN 204290466U CN 201420426033 U CN201420426033 U CN 201420426033U CN 204290466 U CN204290466 U CN 204290466U
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China
Prior art keywords
monitoring
intelligent
power supply
micro computer
switching mode
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CN201420426033.8U
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Inventor
车晓明
宋宠明
姜景涛
余春涛
冯宝升
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Xinjiang Tbea Automatic Equipment Co Ltd
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Xinjiang Tbea Automatic Equipment Co Ltd
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Abstract

The utility model discloses a kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel, it comprises cabinet body structure and system configuration; Described cabinet body structure comprises section material framework, modularization pitch-row and band glass protecting door; Described system configuration comprises monitoring module, charging module, AC distribution, lightning arrester, DC feedback output, varying DC link voltage, flash of light output and storage battery; Described monitoring module carries out system management, unifies intelligent management, system alarm, realize backstage remote communicating function to the signal collected in the interchange of system, direct current, switching value, insulated monitoring unit Battery Monitoring Device.The utility model is stable, and anti-interference is good, ripple coefficient is little, precision of steady current is high, and defencive function is perfect, can realize centralized monitor and unattended.

Description

A kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel
Technical field
The utility model relates to a kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel.
Background technology
In prior art, DC power supply panel is used as DC operation, relaying protection, control signal, the DC power supply that emergency lighting etc. do not have a power failure.Ensureing the operation of switch random time divide-shut brake, timing monitoring equipment completely, is the key equipment of high tension distribution system safe and reliable operation.DC power supply panel is applicable to the place that electric power system power plant, transformer station, skyscraper, industrial enterprise's customer substation, intelligent residential district, power plant for self-supply, switching station, metallurgy, petroleum and petrochemical industry etc. need direct current operative power source.
Utility model content
The technical problems to be solved in the utility model is the defect overcoming prior art, provides a kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of intelligent high-frequency switching mode micro computer monitoring of the utility model DC power supply panel, it comprises cabinet body structure and system configuration; Described cabinet body structure comprises section material framework, modularization pitch-row and band glass protecting door; Described system configuration comprises monitoring module, charging module, AC distribution, lightning arrester, DC feedback output, varying DC link voltage, flash of light output and storage battery;
Described monitoring module carries out system management, unifies intelligent management, system alarm, realize backstage remote communicating function to the signal collected in the interchange of system, direct current, switching value, insulated monitoring unit Battery Monitoring Device.
Further, the interchange detecting unit in described monitoring module measures two-way three-phase alternating current input voltage, electric current, ac contactor state; The information of detection is sent to described power-supply system monitoring module, as the foundation of monitoring module managing electrical power system and handling failure alarm by RS485 serial line interface; Automatically complete two-way according to the AC-input voltage measured and exchange input automatic switchover, realize two-way and exchange stand-by power supply each other.
Further, the DC feedback monitoring unit in described monitoring module, measures the output parameter of DC feedback and the operating state of electricity supply element; Female output voltage, electric current are closed in monitoring; Control the analog quantitys such as female output voltage, electric current, battery charging and discharging electric current and ambient temperature; The information of detection is sent to described power-supply system monitoring module, as the foundation of monitoring module managing electrical power system and handling failure alarm by described RS485 serial line interface.
Further, switching value monitoring unit in described monitoring module, by switch acquisitions such as battery fuse state, cell switch state, closing switch state, control switch state, insulating monitoring relay status voltage reduction module operating states in monitoring unit, report to described monitoring module by described RS485 serial line interface.
Further, the insulating monitoring unit in described monitoring module realizes system busbar and branch insulation status monitoring, produces alarm signal and upper extremely described monitoring wooden unit, has alarm dry contact simultaneously and export.
Further, described charging module can complete AC/DC conversion, realizes the function of system.
Further, AC power is introduced and is dispensed to modules by described AC distribution.
Further, described lightning arrester uses C level lightning protection device, prevents interchange place from introducing surge and thunderbolt, ensures the stability of system cloud gray model.
Further, described DC feedback exports and DC output power is dispensed to the output of each road; Described varying DC link voltage controlled hypotension silicon chain drops into joint number, makes DC bus-bar voltage remain on rated range.
Further, described storage battery, when AC dump, is powered to DC load by storage battery; Also by storage battery, it is powered during combined floodgate High-current output.
Operation principle:
Two-way civil power switches the interchange of input one tunnel, to each charging module for power supply through exchanging.Input three-phase alternating current is converted to direct current by charging module, charges a battery, and give closing bus bar load supplying, closing bus bar is powered to control bus by dropping equipment in addition simultaneously;
The management of each monitoring unit acceptor monitoring in system and control, give main monitoring unified management by connection by the information that each monitoring unit gathers.The various information of main monitoring display direct current system, user is tangible display screen Query Information and operation also, and system information can also be linked into long distance control system.
System, except the base units such as interchange monitoring, direct-current supervision, switching value monitoring, can also configure the functional unit such as insulating monitoring, battery inspection, be used for carrying out overall monitor to direct current system.
Battery Monitoring Device PMU-B1: support 18 joint single battery voltage monitorings, be responsible for collection two groups of ambient temperatures, certainty of measurement can reach 5%, controls by transmission monitor; BAT-108: provide 108 joint cells to detect, any specification battery can be measured, or multiple batteries series winding is measured; The measurement of battery total voltage and battery current is provided; Battery temperature is provided to monitor, monitoring battery shell temperature or battery installation environment temperature; Various measured value is calibrated by LCD and button; There are standard RS-232 and RS485 interface, direct and upper machine communication; System disposition LCD display, membrane keyboard, audible and visual alarm device; By LCD display display system job information; Coordinate LCD display can the conveniently configuration of completion system and the amendment of parameter by membrane keyboard; System according to the alarm of parameters automated processing system, and uses Chinese-character display system defect content, sends sound and light alarm simultaneously.
The beneficial effect that the utility model reaches is:
The utility model has Multiple Type and specification can meet large, medium and small type power plant, transformer station and every profession and trade to the demand of direct current cabinet power supply.Its Main Feature is that stable anti-interference is good, ripple coefficient is little, precision of steady current is high.In addition, more perfect defencive function is also possessed; Adjustment setting is not only directly perceived but also facilitate, and two-way exchanges input, and control to automatically switch by microcomputer, reliability is strong.Carry out charging in strict accordance with charge in batteries curve to storage battery can avoid overcharging and charge less phenomenon, extend battery.Also there is battery inspection function and multiple protective can be realized by tracing detection to each working point, and centralized monitor and unattended can be realized by standard communication interface and host computer communication.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of intelligent high-frequency switching mode micro computer monitoring of the utility model DC power supply panel, it comprises cabinet body structure and system configuration; Described cabinet body structure comprises section material framework, modularization pitch-row and band glass protecting door; Described system configuration comprises monitoring module, charging module, AC distribution, lightning arrester, DC feedback output, varying DC link voltage, flash of light output and storage battery;
Described monitoring module carries out system management, unifies intelligent management, system alarm, realize backstage remote communicating function to the signal collected in the interchange of system, direct current, switching value, insulated monitoring unit Battery Monitoring Device.
Interchange detecting unit in described monitoring module measures two-way three-phase alternating current input voltage, electric current, ac contactor state; The information of detection is sent to described power-supply system monitoring module, as the foundation of monitoring module managing electrical power system and handling failure alarm by RS485 serial line interface; Automatically complete two-way according to the AC-input voltage measured and exchange input automatic switchover, realize two-way and exchange stand-by power supply each other.
DC feedback monitoring unit in described monitoring module, measures the output parameter of DC feedback and the operating state of electricity supply element; Female output voltage, electric current are closed in monitoring; Control the analog quantitys such as female output voltage, electric current, battery charging and discharging electric current and ambient temperature; The information of detection is sent to described power-supply system monitoring module, as the foundation of monitoring module managing electrical power system and handling failure alarm by described RS485 serial line interface.
Switching value monitoring unit in described monitoring module, by switch acquisitions such as battery fuse state, cell switch state, closing switch state, control switch state, insulating monitoring relay status voltage reduction module operating states in monitoring unit, report to described monitoring module by described RS485 serial line interface.
Insulating monitoring unit in described monitoring module realizes system busbar and branch insulation status monitoring, produces alarm signal and upper extremely described monitoring wooden unit, has alarm dry contact simultaneously and export.
Described charging module can complete AC/DC conversion, realizes the function of system.
AC power is introduced and is dispensed to modules by described AC distribution.
Described lightning arrester uses C level lightning protection device, prevents interchange place from introducing surge and thunderbolt, ensures the stability of system cloud gray model.
Described DC feedback exports and DC output power is dispensed to the output of each road; Described varying DC link voltage controlled hypotension silicon chain drops into joint number, makes DC bus-bar voltage remain on rated range.
Described storage battery, when AC dump, is powered to DC load by storage battery; Also by storage battery, it is powered during combined floodgate High-current output.
Supervisory control system hardware configuration adopts modular distributed structure, and each Elementary Function is relatively independent, and cell failure can not spread in systems in which, and thus system has high reliability.Supervisory control system adopts three class control managerial structure, and highest level is Systematical control backstage or power automatic system, is connected with system monitoring pattern by RS232/RS485; System-monitoring module is the second level of supervisory control system, and the bottom of supervisory control system is made up of AC distribution monitoring unit, direct-current supervision unit and switching value monitoring unit.Dummy cell, module monitors unit and DC feedback unit inside are all adopted micro-computer processing technology by AC distribution, and be responsible for the operational factor and the operating state that detect each parts, performing and monitor from higher level the monitor command sent, is the basis of whole system.
First three-phase alternating current input carries out lightning protection process and EMI filtering; then high voltage direct current is converted to through rectification; be high-frequency ac by the inversion of full bridge PWM circuit again, after high frequency transformer isolated buck, become direct current by filtering high-frequency rectifier, export finally by EMI filtering and anti-reverse protection.The major function of rectification module realizes AC-DC converter.Rectification module can work automatically and under manual two kinds of working methods.High-frequency rectification module characteristic: adopt advanced high frequency phase-shifting resonance soft switch technique, conversion efficiency is high; ; Module adopts and exports stepless current-limiting mode, can according to the size of load current and electricity
Tankage is selected by system-monitoring module, and current-limiting points precision of steady current is better than ± and 1%; ; Adopt low poor autonomous equalizing current technology, when multiple module parallel operation runs, there is desirable current-sharing performance; Adopt input and output and the PORT COM of integration, and be designed to hot-pluggable, facilitate the replacing of module, make system maintenance become safety, simple, efficient; There is complete alarm and defencive function; Can realize and upper machine communication, there is " four is distant " interface.
Battery pack is part important in direct current system, and the maintenance good to battery pack and monitoring seem and be even more important.The utility model monitoring module has advanced battery management function, can manage in strict accordance with the charging and discharging curve of battery to battery.
Valve controlled sealed lead-acid accumulator must do corresponding adjustment to charge in batteries voltage at different temperature could ensure that battery is in optimum state, and battery management system can monitor battery temperature; The parameter that user can provide according to battery producer, choice for use battery temperature compensation function, selects system monitoring battery temperature after this function, automatically adjusts battery charging voltage, make battery operated in optimum state.
When battery or need not be in floating charge state for a long time for a long time, the very easy sulfuration of active material of battery pole plates, when active material is fewer and feweri, the discharge capability of battery also worse and worse, until can not put electricity.In addition, due to the discreteness between battery, the virtual voltage between cell is not quite similar, and the float charge voltage of battery nominal is a kind of average, the float charge voltage selected can not meet the requirement of each batteries, if battery is in floating charge state for a long time, its result must be, the electricity of percentage of batteries can ensure to be full of, and some battery cannot be full of, the voltage that this percentage of batteries shows is empty, and when needing electric discharge, its discharge capability is very poor.Therefore, what require charging system to possess regularly to make maintainability to battery all fills mobilizing function, in order to avoid battery sulfuration, void are filled, guarantees discharge capability and the useful life of battery.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (10)

1. an intelligent high-frequency switching mode micro computer monitoring DC power supply panel, is characterized in that, comprises cabinet body structure and system configuration; Described cabinet body structure comprises section material framework, modularization pitch-row and band glass protecting door; Described system configuration comprises monitoring module, charging module, AC distribution, lightning arrester, DC feedback output, varying DC link voltage, flash of light output and storage battery;
Described monitoring module carries out system management, unifies intelligent management, system alarm, realize backstage remote communicating function to the signal collected in the interchange of system, direct current, switching value, insulated monitoring unit Battery Monitoring Device.
2. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, is characterized in that, the interchange detecting unit in described monitoring module measures two-way three-phase alternating current input voltage, electric current, ac contactor state; The information of detection is sent to described power-supply system monitoring module, as the foundation of monitoring module managing electrical power system and handling failure alarm by RS485 serial line interface; Automatically complete two-way according to the AC-input voltage measured and exchange input automatic switchover, realize two-way and exchange stand-by power supply each other.
3. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 2, is characterized in that, the DC feedback monitoring unit in described monitoring module, measures the output parameter of DC feedback and the operating state of electricity supply element; Female output voltage, electric current are closed in monitoring; Control female output voltage, electric current, battery charging and discharging electric current and environment temperature simulation amount; The information of detection is sent to described power-supply system monitoring module, as the foundation of monitoring module managing electrical power system and handling failure alarm by described RS485 serial line interface.
4. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 2, it is characterized in that, switching value monitoring unit in described monitoring module, by battery fuse state, cell switch state, closing switch state, control switch state, insulating monitoring relay status voltage reduction module operating state switch acquisition in monitoring unit, report to described monitoring module by described RS485 serial line interface.
5. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, it is characterized in that, insulating monitoring unit in described monitoring module realizes system busbar and branch insulation status monitoring, produces alarm signal and upper extremely described monitoring wooden unit, has alarm dry contact simultaneously and export.
6. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, is characterized in that, described charging module can complete AC/DC conversion, realizes the function of system.
7. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, is characterized in that, AC power is introduced and is dispensed to modules by described AC distribution.
8. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, is characterized in that, described lightning arrester uses C level lightning protection device, prevents interchange place from introducing surge and thunderbolt, ensures the stability of system cloud gray model.
9. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, is characterized in that, described DC feedback exports and DC output power is dispensed to the output of each road; Described varying DC link voltage controlled hypotension silicon chain drops into joint number, makes DC bus-bar voltage remain on rated range.
10. intelligent high-frequency switching mode micro computer monitoring DC power supply panel as claimed in claim 1, it is characterized in that, described storage battery, when AC dump, is powered to DC load by storage battery; Also by storage battery, it is powered during combined floodgate High-current output.
CN201420426033.8U 2014-07-30 2014-07-30 A kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel Active CN204290466U (en)

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Application Number Priority Date Filing Date Title
CN201420426033.8U CN204290466U (en) 2014-07-30 2014-07-30 A kind of intelligent high-frequency switching mode micro computer monitoring DC power supply panel

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634113A (en) * 2016-02-23 2016-06-01 宁波天仑电气有限公司 DC power supply system for electric power engineering
CN105827014A (en) * 2016-06-03 2016-08-03 国网四川省电力公司泸州供电公司 Power supply outage resetting device for automatic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634113A (en) * 2016-02-23 2016-06-01 宁波天仑电气有限公司 DC power supply system for electric power engineering
CN105827014A (en) * 2016-06-03 2016-08-03 国网四川省电力公司泸州供电公司 Power supply outage resetting device for automatic equipment

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