CN100449926C - System of communication power supply - Google Patents
System of communication power supply Download PDFInfo
- Publication number
- CN100449926C CN100449926C CNB2004100808838A CN200410080883A CN100449926C CN 100449926 C CN100449926 C CN 100449926C CN B2004100808838 A CNB2004100808838 A CN B2004100808838A CN 200410080883 A CN200410080883 A CN 200410080883A CN 100449926 C CN100449926 C CN 100449926C
- Authority
- CN
- China
- Prior art keywords
- module
- power supply
- contactor
- busbar
- control device
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a system of a communication power supply, which comprises a monitoring module, a rectification module, a module of a stand-by power supply, a DC distribution module and a control device, wherein the monitoring module is used for sending out control signals to control all branches in the system of a communication power supply to switch on or off; the rectification module is used for converting alternating current input by a power supply into direct current to be output from a busbar; the module of a stand-by power supply is used for supplying power for a load when the alternating current is broken; the DC distribution module is used for dividing the DC voltage of the busbar into multiway voltage for the load, and is connected with the module of a stand-by power supply; the control device is connected with the monitoring module and the DC distribution module for controlling branches of the module of a stand-by power supply to switch on or off. As the control device of the present invention uses the control signals for conducting or cutting off the branches of the module of a stand-by power supply to enable the module of a stand-by power supply and busbar voltage to switch on or off and the branch current of the control signals is only scores of ma to hundreds of ma, the present invention obtains the effect of safe operation.
Description
Technical field
The present invention relates to the power-supply system of communication system, be specifically related to the primary power supply system of outdoor macro base station.
Background technology
Power supply is the important component part of communication system.In the formation of communication network, power supply is to guarantee the unimpeded necessary condition of communicating by letter.It is not only applicable to communication of power system, is suitable for all private network communications yet and communicates by letter with public network.
In the present prior art, the primary power supply system of outdoor version communication base station generally includes with the lower part: rectification module, monitoring module, DC distribution module and power backup module.Fig. 1 is the module frame chart of primary power supply system.Rectifying part is converted to direct current with alternating current; Monitor portion is by the software monitoring and manage whole power-supply system; DC distribution part is the direct voltage demultiplexing supply load of busbar, and the connection of multipath accumulator is provided; The general storage battery power backup that adopts of power backup part.
In the power-supply system of prior art, when if desired storage battery being safeguarded, a kind of method is: an operator (generally away from the outdoor version base station) comes the Long-distance Control storage battery to be connected with busbar by the software transmission cut-out control signal of monitoring module or disconnects, and another operator carries out the on-site maintenance operation to storage battery then.This just means and works simultaneously for maintenance free cell needs two engineers that Long-distance Control has been brought the trouble in the on-site maintenance.
Another kind method is: the engineer directly pulls up fuse by the fuse driver-extractor when the near-end maintaining of base station.This method is equivalent to direct loop with storage battery and busbar to be cut off, because the electric current on this loop is very big, this mode that pulls up fuse causes the fuse contact jaw sparkover to occur easily, and the operator is had the Personal Risk.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of power supply system for communications is provided, can improves fail safe and operability when the power backup module safeguarded.
For solving the problems of the technologies described above, the invention provides a kind of power supply system for communications, comprising: monitoring module is used for sending the control signal of controlling all branch road break-makes of power-supply system;
Rectification module be used for the alternating current of power supply input is converted to direct current, and the direct current after will changing is exported from busbar;
The power backup module is electric when being used for AC dump;
The DC distribution module is used for the direct voltage demultiplexing voltage supply load with busbar, and connects the power backup module by contactor;
Also comprise: control device, link to each other with the holding wire that is used to transmit described control signal with described DC distribution module respectively, thereby be used for by conducting or block described control signal changing the break-make that electric current between two contacts of described contactor is controlled described power backup module branch road.
Wherein, described control device can also be integrated on the described monitoring module.
Described contactor is divided into open type and closed type contactor.
When selecting described closed type contactor, described control device also comprises pull-up resistor, and described pull-up resistor is connected between power supply and the described holding wire.
Compared with prior art, the invention has the beneficial effects as follows: when the operator safeguards the power backup module at the scene, cut off being connected of power backup module and busbar voltage by control device provided by the invention is manual, and needn't be again by pulling up the mode executable operations of fuse driver-extractor.Because control device of the present invention is to reach the purpose that makes power backup module and busbar voltage break-make by conducting or the control signal of cutting off power backup module branch road, and the branch current of control signal only has tens to the hundreds of milliampere, thereby has reached the effect of safety work.
In addition, control device of the present invention is dissimilar at the normally-open normally-close of contactor, designs two kinds of corresponding solutions, is convenient to the user and selects.
Description of drawings
Fig. 1 is a power-supply system theory structure block diagram of the prior art;
Fig. 2 is first specific embodiment of the power supply system for communications of the present invention;
Fig. 3 is second specific embodiment of the power supply system for communications of the present invention;
Fig. 4 is the 3rd specific embodiment of the power supply system for communications of the present invention;
Fig. 5 is the 4th specific embodiment of the power supply system for communications of the present invention.
Embodiment
The primary power supply system of outdoor version communication base station generally includes with lower module: rectification module, monitoring module, DC distribution module and power backup module.The alternating current that rectification module is imported power supply is converted to direct current and exports as the busbar voltage of load and power backup module; The remote control commands of monitoring module receiving software, and transmit control signal by holding wire and to reach monitoring and to manage the purpose of whole power-supply system, the break-make of each branch road in the described control signal control power-supply system; The DC distribution module is divided into multiple branch circuit according to each branch road to the requirement difference of electric current with the direct voltage of busbar and distributes to load, and the connection of multipath accumulator is provided; The power backup module is accepted busbar voltage for its electric power storage by the DC distribution module when operate as normal, be that electric is to guarantee system's operate as normal as the power backup power supply when power supply breaks down.
Also comprise a control device in the evolutionary approach of power-supply system provided by the invention, described control device links to each other with the holding wire of the control signal that is transported to power backup module branch road, by conducting or block the purpose that control signal realizes power backup module and busbar voltage break-make.Design philosophy of the present invention is to utilize the DC distribution module different with the branch current that busbar voltage is connected with monitoring module: the branch current that is connected with busbar voltage is generally 100 even 200A, and the branch current of output control signal generally only has tens to the hundreds of milliampere.
Operation principle of the present invention is: under normal condition, control device is a conducting state, the branch road that the conducting monitoring module is connected with the DC distribution module, and this timed unit is inoperative, and system directly is subjected to the control of monitoring module.Monitoring module receives the remote control command from software, mode with control signal sends to each branch road by holding wire then, when control signal made that each branch road is in conducting state, each module was in running order: the alternating current that rectification module is imported power supply is converted to direct current and outputs on the busbar voltage that is connected with the DC distribution module; The DC distribution module requires and will flow to each branch road load after the electric current shunting according to the difference of each branch road to electric current, and in addition, this DC distribution module also is connected with the power backup module, busbar voltage is offered the power backup module be its electric power storage; The power backup module can be in failure state during operate as normal at power supply, when power supply breaks down, provides electric current by DC distribution module and each the load formation loop, road that is connected with each branch road for load.
In the time of the power backup part need being disconnected with busbar voltage when at the scene the power backup module being safeguarded, manually control device is changed to off-state, the control signal that this moment, monitoring module was passed to power backup module branch road is blocked, the branch road that the DC distribution module is connected with the power backup module no longer includes electric current to be passed through, and the power backup module is disconnected and being connected of busbar.Certainly, also can adopt in the prior art by the software Long-distance Control, sending the control command that requires to cut off power backup module branch road to control module makes the power backup module be connected with the disconnection of busbar voltage, owing to be prior art and to need Long-distance Control irrelevant with technical problem to be solved by this invention, therefore detailed description no longer.
When the reality use is of the present invention, can select described control device is integrated in monitoring module inside and is connected two kinds of scheme implementations between monitoring module and the DC distribution module, but no matter select which kind of embodiment, all need described control device is linked to each other with the holding wire that transmits control signal, reach by conducting or block the purpose that control signal is controlled the break-make of power backup module and busbar voltage.Fig. 2 to Fig. 5 is three specific embodiments of the present invention.Wherein, Fig. 2 and Fig. 3 are that above-mentioned control device is placed the embodiment of monitoring module outside, Fig. 4, Fig. 5 is described control device is integrated and embodiment monitoring module inside.
In power-supply system of the present invention, the general storage battery power backup that adopts of power backup part; Described DC distribution module comprises the contactor that is connected with each branch road, and the contact is the operating part of contactor, comprises main contacts and auxiliary contact.The effect of main contacts is to connect and the disjunction major loop, control bigger electric current, and auxiliary contact is in control loop, to satisfy the requirement of various control modes.The main contacts of contactor of the present invention is connected with each branch road with busbar voltage respectively, constitutes the major loop with heavy current, and its auxiliary contact connect monitoring module and each branch road, constitutes the control loop of weak current, receives control signal.Difference according to the contactor coil trend can be divided into the auxiliary contact of contactor open type contactor and closed type contactor.Below execution mode when selecting different contactors describe in detail.
Fig. 2 is a first embodiment of the invention, the situation when having described contactor and be closed type and having placed monitoring module outside the described control module.The operation principle of normally open contactor is: when the electric current by two contacts was 0, this contactor kept off-state; When the electric current by two contacts reaches specified electric current, this contactor closure.As shown in Figure 2, present embodiment comprises monitoring module 1, rectification module 2, DC distribution module 3, power backup module 4 and control device 51; Described DC distribution module 3 comprises contactor 61, and power backup module 4 is a storage battery.Under normal circumstances, control device 51 is in closure state, the branch road that conducting is connected with storage battery 4, the control signal decision that the break-make of storage battery is sent by the monitoring module that receives.When Alternating Current Power Supply, the rectification module output voltage charges a battery by busbar, when AC dump, rectification module 2 no-output storage batterys are given the base station electric by busbar, when the operator safeguards the replacing storage battery, when needs disconnect being connected of storage battery and busbar, thereby can cut off being connected of storage battery and busbar by the method that disconnects control device 51 disconnection normally closed contactors 61.
The principle that is connected that realizes control storage battery and busbar by contactor is:
In normal condition control device 51 closures, when interchange powers on the base station when normally starting, it is high level that monitoring module 1 is provided with 11 holding wires, 12 holding wires are ground, because have pressure drop between two holding wires, normally closed contactor 61 has electric current to pass through, so contactor is in closure state, storage battery is connected with the busbar of rectification module output, and rectification module 2 output voltages charge a battery by busbar; If the AC dump situation, the level of 1 and 2 holding wires is constant, and storage battery is given the base station electric by busbar.At the charge or discharge state, the electric current that passes through is all very big, and the fuse that is equipped with module 4 plays the current-limiting protection effect.
When the needs maintenance free cell, the field engineer opens control device 51, and the high level on 11 holding wires is blocked becomes low level, and no current flows through on normally closed contactor 61 contacts, and contactor disconnects, and storage battery and busbar disconnect.Owing to, do not have operational hazards by the electric down only hundreds of mA of signal of the control storage battery on the control device 51.
In addition, if wish the function of shielding control device 51, the terminal of control device 51 can be passed through the short circuit cap short circuit, this moment, the on off operating mode of D.C. contactor was controlled by Power Monitoring Unit 1 fully.
Fig. 3 is a second embodiment of the invention, the situation when having described contactor and be open type and having placed monitoring module outside the described control module.Different with the closed type contactor, the operation principle of open type contactor is: when the electric current by two contacts is 0, and this contactor closure; When by two contacts have electric current to pass through the time, this contactor keeps off-state.As shown in Figure 3, present embodiment comprises monitoring module 1, rectification module 2, DC distribution module 3, power backup module 4 and control device 52; Described DC distribution module 3 comprises normally open contactor 62, and power backup module 4 is a storage battery.Different with first embodiment shown in Figure 2, the described control device 52 of this embodiment also comprises pull-up resistor 7.
Under normal circumstances, control device 52 is in closure state, the branch road that conducting is connected with storage battery 4, and the break-make of storage battery is by receiving the control signal decision that monitoring module 1 sends.When Alternating Current Power Supply, the rectification module output voltage charges a battery by busbar, when AC dump, rectification module 2 no-outputs, storage battery is given the base station electric by busbar, when the operator safeguards the replacing storage battery, when needs disconnect being connected of storage battery and busbar, thereby can cut off being connected of storage battery and busbar by the method that disconnects control device 52 disconnection normally open contactors.
The principle that is connected that realizes control storage battery and busbar by contactor is:
During normal condition control device 52 closures, the level of 11 holding wires is a low level, and the level of 12 holding wires is a ground wire, there is not electric current to pass through on the normally open contactor 62, be in closure state, storage battery is connected with busbar, and rectification module 2 output voltages charge a battery by busbar; If AC dump situation, the level of 11 and 12 holding wires is constant, and storage battery is given the base station electric by busbar, and the pull-up resistor electric current that link to each other with positive source this moment flows out from the left side of holding wire, and can not flow into normally open contactor 62 therefore, this moment, pull-up resistor was inoperative.At the charge or discharge state, the electric current that passes through is all very big, and the fuse that is equipped with module 4 plays the current-limiting protection effect.
When the needs maintenance free cell, the field engineer opens control device 52, blocks the control signal that monitoring module 1 sends, and make the voltage at normally open contactor 62 two ends that pressure reduction be arranged by the pull-up resistor that is connected with power supply this moment, normally open contactor disconnects, and storage battery and busbar disconnect.
Equally, identical with embodiment shown in Figure 2, if wish the function of shielding control device 52, the terminal of described control device 52 can be passed through the short circuit cap short circuit, this moment, the on off operating mode of normally open contactor 62 was controlled by Power Monitoring Unit 1 fully.
Select suitable pull-up resistor according to actual needs, guarantee the control storage battery only tens of mA of D.C. contactor control signal of electricity down, do not have operational hazards.
More than be two embodiment when placing monitor portion outside control device, existing integrated with regard to control device and situation monitor portion inside is carried out following description.
Fig. 4 is a third embodiment of the invention, described contactor and be closed type and with described control module integrated with monitoring module on situation.As shown in Figure 4, present embodiment comprises monitoring module 1, rectification module 2, DC distribution module 3, power backup module 4 and control device 53; Described DC distribution module comprises contactor 61, and power backup module 4 is a storage battery.Different with Fig. 2 and two embodiment shown in Figure 3, the described control device 53 of this embodiment places the inside of monitoring module 1.Its principle remains by the control signal on the control signal wire 11 and blocks or conducting power backup module branch road.Under normal circumstances, control device 5 is in closure state, the branch road that conducting is connected with storage battery 4, and the break-make of storage battery is decided by the control signal that the monitoring module that receives sends.When Alternating Current Power Supply, the rectification module output voltage charges a battery by busbar, when AC dump, rectification module 2 no-output storage batterys are given the base station electric by busbar, when the operator safeguards the replacing storage battery, when needs disconnect being connected of storage battery and busbar, thereby can cut off being connected of storage battery and busbar by the method that disconnects control device 53 disconnection normally closed contactors.Owing to realize that by closed type contactor 62 principle that is connected of control storage battery and busbar is identical with first embodiment, therefore no longer repeat.
Fig. 5 is a fourth embodiment of the invention, described contactor and be open type and with described control module integrated with monitoring module on situation.As shown in Figure 5, present embodiment comprises monitoring module 1, rectification module 2, DC distribution module 3, power backup module 4 and control device 54; Described DC distribution module 3 comprises contactor 62, and power backup module 4 is a storage battery.Different with embodiment shown in Figure 4, the described control device 54 of this embodiment also comprises pull-up resistor 7.Under normal circumstances, control device 54 is in closure state, the branch road that conducting is connected with storage battery 4, and the break-make of storage battery receives the control signal that monitoring module sends.When Alternating Current Power Supply, rectification module 2 output voltages charge a battery by busbar, when AC dump, rectification module no-output storage battery is given the base station electric by busbar, when the operator safeguards the replacing storage battery, when needs disconnect being connected of storage battery and busbar, thereby can cut off being connected of storage battery and busbar by the method that disconnects control device 54 disconnection normally open contactors.Owing to realize that by open type contactor 62 principle that is connected of control storage battery and busbar is identical with second embodiment, therefore repeat no more.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1, a kind of power supply system for communications comprises:
Monitoring module is used for sending the control signal of controlling all branch road break-makes of power-supply system;
Rectification module be used for the alternating current of power supply input is converted to direct current, and the direct current after will changing is exported from busbar;
The power backup module is electric when being used for AC dump;
The DC distribution module is used for the direct voltage demultiplexing voltage supply load with busbar, and connects the power backup module by contactor;
It is characterized in that, also comprise:
Control device, link to each other with the holding wire that is used to transmit described control signal with described DC distribution module respectively, thereby be used for by conducting or block described control signal changing the break-make that electric current between two contacts of described contactor is controlled described power backup module branch road.
2, a kind of power supply system for communications according to claim 1, it is characterized in that: described control device is integrated on the described monitoring module.
3, a kind of power supply system for communications according to claim 1 and 2 is characterized in that: described contactor is an open type.
4, a kind of power supply system for communications according to claim 1 and 2 is characterized in that: described contactor is the closed type contactor.
5, a kind of power supply system for communications according to claim 4, it is characterized in that: described control device also comprises pull-up resistor, described pull-up resistor is connected between power supply and the described holding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100808838A CN100449926C (en) | 2004-10-11 | 2004-10-11 | System of communication power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100808838A CN100449926C (en) | 2004-10-11 | 2004-10-11 | System of communication power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1761138A CN1761138A (en) | 2006-04-19 |
| CN100449926C true CN100449926C (en) | 2009-01-07 |
Family
ID=36707113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100808838A Expired - Fee Related CN100449926C (en) | 2004-10-11 | 2004-10-11 | System of communication power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100449926C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388588C (en) * | 2006-06-01 | 2008-05-14 | 华为技术有限公司 | Method and system for power supply device |
| CN101854072B (en) * | 2010-05-11 | 2013-06-19 | 中达电通股份有限公司 | DC contactor control system, control method and master control system |
| CN102480138B (en) * | 2010-11-22 | 2014-04-30 | 中兴通讯股份有限公司 | Power system and hybrid power-on and power-down control method |
| WO2012083746A1 (en) * | 2011-10-09 | 2012-06-28 | 华为技术有限公司 | Distributed wireless power supply system for base station |
| CN102856901B (en) * | 2012-08-30 | 2018-02-23 | 青岛海尔洗衣机有限公司 | Household electrical appliance load supplying circuit |
| CN104917142B (en) * | 2014-03-10 | 2017-12-29 | 艾默生网络能源系统北美公司 | A kind of sample circuit and monitoring device |
| CN204258293U (en) * | 2014-12-22 | 2015-04-08 | 中塔新兴通讯技术有限公司 | A kind of communication power supply remote power feeding system |
| CN107516891B (en) * | 2016-06-17 | 2022-06-03 | 中兴通讯股份有限公司 | Power utilization control method, device and equipment for communication power supply |
| CN112952564B (en) * | 2019-12-25 | 2022-04-22 | 华为数字能源技术有限公司 | Power distribution module and communication power supply system |
| CN111934410A (en) * | 2020-08-05 | 2020-11-13 | 国网山西省电力公司信息通信分公司 | Emergency processing method in communication power supply transformation process of ultrahigh voltage transformer substation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452291A (en) * | 2002-04-12 | 2003-10-29 | 湖南省娄底电业局双峰电力局 | Rural power distribution running remote real time monitoring method and system |
-
2004
- 2004-10-11 CN CNB2004100808838A patent/CN100449926C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452291A (en) * | 2002-04-12 | 2003-10-29 | 湖南省娄底电业局双峰电力局 | Rural power distribution running remote real time monitoring method and system |
Non-Patent Citations (4)
| Title |
|---|
| 组合通信电源系统. 陈虎.电力系统通信，第3期. 2001 |
| 组合通信电源系统. 陈虎.电力系统通信，第3期. 2001 * |
| 组合通信电源系统结构. 尚磊.电信工程技术与标准化，第6期. 2002 |
| 组合通信电源系统结构. 尚磊.电信工程技术与标准化，第6期. 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1761138A (en) | 2006-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201504117U (en) | Intelligent double-power change-over switch | |
| CN104518564A (en) | Backup automatic switching apparatus with area automatic switching function, and backup automatic switching method | |
| CN108565974B (en) | Self-powered remote failure protection method and system based on protection device | |
| CN101227091A (en) | Intelligent power utilization system | |
| CN110994693A (en) | Uninterrupted parallel operation grid-connected system and grid-connected method of medium-voltage power supply vehicle | |
| CN100449926C (en) | System of communication power supply | |
| CN112072775B (en) | Single spare power automatic switching system adaptive to 10kV bus operation mode | |
| CN206559134U (en) | Stand-by power supply discharge control device | |
| CN110100370A (en) | The switching construction that switches between two input terminals, equipment, system and method | |
| CN102570513A (en) | Control assembly with mutual exclusion of charge and discharge switches of cell management system | |
| CN211377605U (en) | Uninterrupted parallel operation grid-connected system of medium-voltage power supply vehicle | |
| CN201369179Y (en) | Main/standby power supply circuit for digital equipment of nuclear power plant | |
| CN110880807A (en) | Two-section direct current power supply bus bar voltage reduction silicon chain open circuit protection system | |
| CN110247472A (en) | Power supply device, method and equipment | |
| CN203481822U (en) | Closed loop power supply model of medium voltage 10 kilovolt power distribution network | |
| CN214543787U (en) | Power supply switching circuit | |
| CN105552884A (en) | Method and system for controlling double-busbar substation from parallel operation to split operation | |
| CN112124132B (en) | Non-vehicle charging and discharging system in grid-connected mode and isolated grid mode and charging pile | |
| CN205811652U (en) | Double power supply circuit | |
| CN104022492A (en) | Auxiliary short circuit protection device for low-voltage power supply device of long-distance mine laneway | |
| CN110518815A (en) | A kind of distribution terminal electric power controller and method | |
| CN111880047A (en) | Analog switch device and test system | |
| CN105449673A (en) | Control method and system for converting paralleling operation into separated operation for dual-bus section substation | |
| CN216390588U (en) | Double-direct-current system control circuit | |
| CN105449835A (en) | Regional spare power automatic switch method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20201011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |