CN103944179B - Plumbous carbon battery is utilized to implement the electric power system of communication system peak load shifting - Google Patents
Plumbous carbon battery is utilized to implement the electric power system of communication system peak load shifting Download PDFInfo
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Abstract
The invention discloses a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting, including: high-frequency switching power supply module, direct current supply module, Monitoring and Controlling module and power switching buffer module, wherein, high-frequency switching power supply module, carries out on-off control to the terminal voltage of communication equipment and direct current supply module respectively；Direct current supply module, receives power supply and plumbous carbon accumulator therein is carried out float type charging, and power for communication equipment；Monitoring and Controlling module, when AC outage, starts power switching buffer module, controls direct current supply module for power supply simultaneously；When AC-powered, control high-frequency switching power supply module and power, according to the float charge voltage of direct current supply module whether more than communication equipment upper voltage limit, control that direct current supply module is online or off-line floating charge；Power switching buffer module, carries out instantaneous power when AC outage.The invention solves the problem solving to improve the stability in the electric power system of existing peak load shifting formula.
Description
Technical field
The present invention relates to power technique fields, specifically, relate to a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting.
Background technology
For a long time, electrical network electricity consumption is uneven, and supply falls short of demand in electricity consumption on daytime, and electric company's user is rationed the power supply phenomenon frequently occurs, and supply exceed demand in electricity consumption at night, both electrical network was caused potential safety hazard, causes again energy waste.Particularly with communication system, power reguirements is very high, if phenomenon of rationing the power supply occurs, the paralysis that communicates on a large scale will be caused.Therefore just need, to electrical network peak load shifting, to reduce network load.
Peak load shifting, refers to and requires the continual electric power system of continued power in electrical equipment, and such as communications equipment room, supply load continues in immovable situation, reduces power supply Peak power use, increases power supply valley power consumption.
People's once imagination accumulator realizes peak load shifting, and a kind of mode is to utilize lithium battery as energy storage device, but, when prior art, physics and chemical characteristic due to lithium battery, it is difficult to be fabricated to jumbo rechargeable battery, is unfavorable for electric power system stable power-supplying；Another way is to utilize conventional lead acid battery to be powered in electric power system as energy storage device, but, also all kinds of corrupt practices creep in for conventional lead acid battery, as: plumbous battery volume is big, unit energy weight ratio is big, and high-temperature stability is poor, and high temperature season needs air conditioner refrigerating support, thus causing construction cost big, simultaneously because conventional lead acid battery charge and discharge circulation life is short, usual discharge and recharge follows less than 500 times, uses the charge/discharge operation mode life-span short, need frequently to change, do not possess practicality.
Especially in the electric power system of current peak load shifting formula, the interval that alternating current (is alternatively referred to as civil power) with accumulator battery is powered when switching is longer, it is typically larger than 15ms (millisecond), make when power switching communication equipment enter the electric energy sky window phase, and then cause that the communication system to power reguirements is high blocks.
Therefore, how to improve the stability in the electric power system of existing peak load shifting formula, just become technical problem urgently to be resolved hurrily.
Summary of the invention
The technical problem to be solved is to provide a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting, with the problem solving to improve the stability in the electric power system of existing peak load shifting formula.
For solving above-mentioned technical problem, the invention provides a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting, incoming transport electricity also couples mutually with communication equipment, this electric power system includes: high-frequency switching power supply module, direct current supply module, Monitoring and Controlling module and power switching buffer module, wherein
Described high-frequency switching power supply module, for described alternating current being sent to described power switching buffer module, and according to the power supplying control signal received from described Monitoring and Controlling module, respectively the described alternating current of the terminal voltage and described direct current supply module that are sent to described communication equipment is carried out on-off control；
Described direct current supply module, for receiving power supply, the plumbous carbon accumulator in this direct current supply module is carried out float type charging, it is that described communication equipment is powered according to the described power supplying control signal received from described Monitoring and Controlling module, and receives electric quantity data Real-time Feedback after the electric quantity monitoring signal that described Monitoring and Controlling module sends to described Monitoring and Controlling module；
Described Monitoring and Controlling module, for monitoring the power supply state of described alternating current in real time, when described AC outage, starts described power switching buffer module, described direct current supply module is carried out control of discharge simultaneously；When described AC-powered, described power supplying control signal sends extremely described high-frequency switching power supply module be powered described communication equipment controlling, and the float charge voltage according to the described electric quantity data described direct current supply module of monitoring is not more than described communication equipment upper voltage limit, control the described online floating charge of direct current supply module, described float charge voltage, more than described communication equipment upper voltage limit, controls the charging of described direct current supply module off-line；
Described power switching buffer module, the electric energy provided for receiving described high-frequency switching power supply module is charged, and described communication equipment is carried out instantaneous power by the control receiving described Monitoring and Controlling module when described AC outage.
Wherein it is preferred to, described Monitoring and Controlling module, farther include: monitoring unit and on-off control unit, wherein,
Described monitoring unit, power supply state for monitoring described alternating current in real time generates alternate current states data and sends to described on-off control unit, and generating the transmission of described electric quantity monitoring signal to described direct current supply module, the described electric quantity data receiving this direct current supply module Real-time Feedback sends to described on-off control unit；
Described on-off control unit, for the described alternate current states data received according to described monitoring unit, when described AC outage, generate emergency service signal to send to described power switching buffer module, being simultaneously generated described power supplying control signal to turn between described direct current supply module and described communication equipment, controlling described direct current supply module is the electric discharge of described communication equipment；When described AC-powered, by described power supplying control signal by open circuit between described direct current supply module and described communication equipment, described power supplying control signal is sent extremely described high-frequency switching power supply module simultaneously and carries out the power supply control for described communication equipment, and the float charge voltage according to the described electric quantity data described direct current supply module of monitoring is not more than described communication equipment upper voltage limit, control the described online floating charge of direct current supply module, described float charge voltage, more than described communication equipment upper voltage limit, controls the charging of described direct current supply module off-line.
Wherein it is preferred to, described direct current supply module be provided with the relay and switching device that can control to be connected between described communication equipment.
Wherein it is preferred to, described on-off control unit, it is further used for generating described power supplying control signal and sends to described switch device conductive, more described relay is turned on, controlling described direct current supply module is the electric discharge of described communication equipment.
Wherein it is preferred to, described switching device, the further switching device for being made up of silicon controlled rectifier.
Wherein it is preferred to, described power switching buffer module, further the power switching buffer module for being made up of capacitor；The duration that described communication equipment carries out during this condenser capacity maintenance AC outage instantaneous power is 15 milliseconds.
Wherein it is preferred to, described high-frequency switching power supply module, farther include: high frequency charhing unit and high frequency power supply unit, wherein,
Described high frequency charhing unit, for according to the power supplying control signal received from described Monitoring and Controlling module being the charging of described direct current supply module, disconnecting the connection with described alternating current after described direct current supply module is charged, again accessing described alternating current after described direct current supply module discharge is the charging of described direct current supply module；
Described high frequency power supply unit, for the electric energy of the described alternating current accessed is sent to described power switching buffer module, and is that described communication equipment is powered according to the power supplying control signal received from described Monitoring and Controlling module.
Wherein it is preferred to, described high-frequency switching power supply module farther includes: charging module group and supply module group, and this charging module group and supply module group are made up of at least two rectification module respectively, wherein,
When in charging process, voltage is not more than the described communication equipment upper limit, described plumbous carbon accumulator is carried out floating charge by described charging module group and supply module group simultaneously；When in charging process, voltage is more than the described communication equipment upper limit, described charging module group is to described plumbous carbon accumulator charging, and described communication equipment is powered by described supply module group.
Wherein it is preferred to, described direct current supply module, is the direct current supply module being made up of plumbous carbon accumulator battery further.
Wherein it is preferred to, described Monitoring and Controlling module, further for having the Monitoring and Controlling module of control chip.
Compared with prior art, a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting of the present invention, reach following effect:
1) present invention is by utilizing jumbo plumbous carbon battery as the energy storage device of electric power system, it is possible to is effectively increased charge capacity, provides sufficient electric energy supply for electric power system；And the discharge and recharge number of times of the plumbous carbon battery adopted due to electric power system of the present invention is more than 4 times of existing plumbous battery, and cycle period is long, extends the service life of system accumulator battery；Electric power system is provided with corresponding power switching buffer cell, it is possible to the power supply sky window phase when power switching is that communication equipment is powered, the problem efficiently solving interval length that is unstable in existing peak load shifting electric power system and that be powered switching.
2) present invention timesharing can also implement different work and control mode simultaneously automatically, when accumulator charging voltage is higher than communication system upper voltage limit, the automatic off-line charging of accumulator, and accumulator automatically accesses and is powered when alternating current (being called civil power in subsequent embodiment) has a power failure, thus furthermore achieved that the power supply of the peak load shifting mode of electrical network.
3) due to the fact that its plumbous carbon battery utilized is high temperature resistant battery, it is possible to be greatly improved in electric power system power machine room set temperature, thus reducing air-conditioning power consumption, reduce operating cost, and reduce the potential safety hazard of electrical network, reach effects of energy saving and emission reduction, save electricity cost.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting described in the embodiment of the present invention one.
Fig. 2 is the structured flowchart of a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting described in the embodiment of the present invention two.
Fig. 3 is the electric power system of utilization lead carbon battery enforcement communication system peak load shifting circuit structure diagram in actual applications described in the embodiment of the present invention.
Detailed description of the invention
As employed some vocabulary in the middle of description and claim to censure specific components.Those skilled in the art are it is to be appreciated that hardware manufacturer may call same assembly with different nouns.This specification and claims are not used as distinguishing in the way of assembly by the difference of title, but are used as the criterion distinguished with assembly difference functionally." comprising " as mentioned in the middle of description and claim in the whole text is an open language, therefore should be construed to " comprise but be not limited to "." substantially " referring in receivable range of error, those skilled in the art can solve described technical problem within the scope of certain error, basically reaches described technique effect.Additionally, " coupling " word comprises any directly and indirectly electric property coupling means at this.Therefore, if a first device described in literary composition is coupled to one second device, then represents described first device and can directly be electrically coupled to described second device, or be indirectly electrically coupled to described second device by other devices or the means that couple.Description subsequent descriptions is implement the better embodiment of the present invention, and right described description is for the purpose of the rule so that the present invention to be described, is not limited to the scope of the present invention.Protection scope of the present invention is when being as the criterion depending on the defined person of claims.
Below in conjunction with accompanying drawing, the present invention is described in further detail, but not as a limitation of the invention.
Embodiment one
As it is shown in figure 1, for the electric power system 10 utilizing plumbous carbon battery to implement communication system peak load shifting a kind of described in the embodiment of the present invention one, access civil power and also couple with communication equipment 30 phase；Wherein, described communication equipment 30 receives the power supply of described electric power system 10 and communicates work.
Specifically, described electric power system 10 includes: high-frequency switching power supply module 101, direct current supply module 102, Monitoring and Controlling module 103 and power switching buffer module 104；Wherein,
Described high-frequency switching power supply module 101, couple with described civil power, direct current supply module 102, Monitoring and Controlling module 103, power switching buffer module 104 and communication equipment 30 phase respectively, for the electric energy of the described civil power accessed is sent to described power switching buffer module 104, and according to the power supplying control signal received from described Monitoring and Controlling module 103, respectively the electric energy of the described civil power being sent to described communication equipment 30 and described direct current supply module 102 is carried out on-off control.
High-frequency switching power supply module 101, it can be the AC power circuit with rectification circuit, after the AC amplitude rectification of the civil power that outside is accessed by rectification circuit adjusts, form unidirectional current (including: Rectified alternating current), wherein, rectification circuit can be half-wave rectifying circuit, full-wave rectifying circuit or bridge rectifier etc., is not especially limited here.Certainly, the galvanic voltage maximum voltage value that each electric elements can bear less than in circuit of high-frequency switching power supply module 101 output is advisable.
Described direct current supply module 102, couple with described high-frequency switching power supply module 101, Monitoring and Controlling module 103 and communication equipment 30 phase respectively, plumbous carbon accumulator in described direct current supply module 102 is carried out float type charging by the electric energy provided for receiving described high-frequency switching power supply module 101, it is that described communication equipment 30 is powered according to the described power supplying control signal received from described Monitoring and Controlling module 103, and receives electric quantity data Real-time Feedback after the electric quantity monitoring signal that described Monitoring and Controlling module 103 sends to described Monitoring and Controlling module 103.
Described Monitoring and Controlling module 103, couple mutually with described high-frequency switching power supply module 101, direct current supply module 102 power switching buffer module 104 and civil power, for monitoring the power supply state of described civil power in real time, when described mains failure, emergency service signal is sent to described power switching buffer module 104, then the transmission of described power supplying control signal is carried out control of discharge to described direct current supply module 102；When described mains-supplied, described power supplying control signal is sent extremely described high-frequency switching power supply module 101 and carries out the power supply control for described communication equipment 30, and described electric quantity monitoring signal is sent to described direct current supply module 102, undertaken controlling for the charging of described direct current supply module 102 by described high-frequency switching power supply module 101 according to the described electric quantity data of this direct current supply module 102 Real-time Feedback.Wherein, the process that the charging of described direct current supply module 102 is controlled by described Monitoring and Controlling module 103 is: the float charge voltage that described Monitoring and Controlling module 103 monitors described direct current supply module 102 according to described electric quantity data is not more than described communication equipment 30 upper voltage limit, control the described online floating charge of direct current supply module 102, described float charge voltage, more than described communication equipment 30 upper voltage limit, controls the charging of described direct current supply module 102 off-line.
This is because, when alternating current normal power supply, described high-frequency switching power supply module 101 and direct current supply module 102 work simultaneously, it is powered for described communication equipment 30, therefore the supply voltage upper voltage limit more than described communication equipment 30 it is likely to result in, and then damage described communication equipment 30, so, described Monitoring and Controlling module 103 will monitor the electric quantity data of described direct current supply module 102 in real time, when the float charge voltage reflected in electric quantity data is more than the upper voltage limit of communication equipment 30, then direct current supply module 102 and communication equipment 30 are departed from (i.e. off-line).
In the present embodiment, Monitoring and Controlling module 103 needs in real time the state of civil power to be monitored, it is because: civil power is due to large-scale power supply, it is possible that the power failure phenomenon of the excessive very short time (Millisecond) caused of power consumption, for domestic consumer, the power failure phenomenon of very short time does not result in household electrical appliances or the fault of other electricity consumption devices, but for the network communication equipment that power reguirements is high, even if the power failure phenomenon of very short time, will also result in the machine of closing down or delay of network communication equipment, the serious damage being then likely to result in described network communication equipment, further result in the interruption of network service.Therefore, civil power will be carried out monitoring in real time (monitoring mode that can adopt can be: according to preset interval sampling, certainly can also is that other modes, this does not make concrete restriction) by Monitoring and Controlling module 103.Needing exist for illustrating, civil power after over commutation processes, can't be changed the transmission characteristic of described civil power by high-frequency switching power supply module 101, if the power failure phenomenon of i.e. described civil power generation very short time, then, power supply would arise that the power failure phenomenon of very short time.In the present embodiment, Monitoring and Controlling module 103, can be specifically the Monitoring and Controlling module with control chip.
Described power switching buffer module 104, couple with described high-frequency switching power supply module 101, Monitoring and Controlling module 103 and communication equipment 30 phase respectively, the electric energy provided for receiving described high-frequency switching power supply module 101 is charged, and described communication equipment 30 is carried out instantaneous power by the emergency service signal receiving the transmission of described Monitoring and Controlling module 103 when described mains failure.
Existence due to described power switching buffer module 104, make when mains failure, described direct current supply module 102 starts and is during the empty window phase that described communication equipment 30 produces when being powered, described communication equipment 30 still has electric energy supply, the machine thus the stoppage in transit not havinging the communication equipment 30 caused because of the sky window phase of powering is delayed.
Embodiment two
As shown in Figure 2, for the electric power system 20 utilizing plumbous carbon battery to implement communication system peak load shifting a kind of described in the embodiment of the present invention one, accessing civil power and couple with communication equipment 30 phase, this electric power system 20 includes: high-frequency switching power supply module 201, direct current supply module 202, Monitoring and Controlling module 203 and power switching buffer module 204；Wherein,
Described high-frequency switching power supply module 201, couple with described civil power, direct current supply module 202, Monitoring and Controlling module 203, power switching buffer module 204 and communication equipment 30 phase respectively, for the electric energy of the described civil power accessed is sent to described power switching buffer module 204, and according to the power supplying control signal received from described Monitoring and Controlling module 203, respectively the electric energy of the described civil power being sent to described communication equipment 30 and described direct current supply module 202 is carried out on-off control.
Specifically, high-frequency switching power supply module 201, including: high frequency charhing unit 2011 and high frequency power supply unit 2012, wherein,
Described high frequency charhing unit 2011, couple with described civil power, direct current supply module 202, Monitoring and Controlling module 203 and high frequency power supply unit 2012 phase respectively, the power supplying control signal received from described Monitoring and Controlling module 203 for basis is that described direct current supply module 202 is charged, disconnecting the connection with described civil power after described direct current supply module 202 is charged, again accessing described civil power after described direct current supply module 202 discharge off is that described direct current supply module 202 is charged.
Described high frequency power supply unit 2012, couple with described civil power, Monitoring and Controlling module 203, power switching buffer module 204, high frequency charhing unit 2011 and communication equipment 30 phase respectively, for the electric energy of the described civil power accessed is sent to described power switching buffer module 204, and it is that described communication equipment 30 is powered according to the power supplying control signal received from described Monitoring and Controlling module 203.
Described direct current supply module 202, couple with described high-frequency switching power supply module 201, Monitoring and Controlling module 203 and communication equipment 30 phase respectively, plumbous carbon accumulator in described direct current supply module 202 is carried out float type charging by the electric energy provided for receiving described high-frequency switching power supply module 201, it is that described communication equipment 30 is powered according to the described power supplying control signal received from described Monitoring and Controlling module 203, and receives electric quantity data Real-time Feedback after the electric quantity monitoring signal that described Monitoring and Controlling module 203 sends to described Monitoring and Controlling module 203.
In the present embodiment, direct current supply module 202, it is possible to for the direct current supply module being made up of plumbous carbon accumulator battery.
Described Monitoring and Controlling module 203, couple mutually with described high-frequency switching power supply module 201, direct current supply module 202 power switching buffer module 204 and civil power, for monitoring the power supply state of described civil power in real time, when described mains failure, emergency service signal is sent to described power switching buffer module 204, then the transmission of described power supplying control signal is carried out control of discharge to described direct current supply module 202；When described mains-supplied, described power supplying control signal is sent extremely described high-frequency switching power supply module 201 and carries out the power supply control for described communication equipment 30, and described electric quantity monitoring signal is sent to described direct current supply module 202, undertaken controlling for the charging of described direct current supply module 202 by described high-frequency switching power supply module 201 according to the described electric quantity data of this direct current supply module 202 Real-time Feedback.
Specifically, Monitoring and Controlling module 203, including: monitoring unit 2031 and on-off control unit 2032, wherein,
Described monitoring unit 2031, couple with described civil power, direct current supply module 202 and on-off control unit 2032 phase respectively, power supply state for monitoring described civil power in real time generates civil power status data and sends to described on-off control unit 2032, and generating the transmission of described electric quantity monitoring signal to described direct current supply module 202, the described electric quantity data receiving this direct current supply module 202 Real-time Feedback sends to described on-off control unit 2032；
Described on-off control unit 2032, couple with monitoring unit 2031, described high-frequency switching power supply module 201, direct current supply module 202 and power switching buffer module 204 phase respectively, for the described civil power status data sent according to described monitoring unit 2031, when described mains failure, generate emergency service signal to send to described power switching buffer module 204, and generate described power supplying control signal by turning between described direct current supply module 202 and described communication equipment 30, control described direct current supply module 202 and discharge for described communication equipment 30；When described mains-supplied, by described power supplying control signal by open circuit between described direct current supply module 202 and described communication equipment 30, described power supplying control signal is sent extremely described high-frequency switching power supply module 201 simultaneously and carries out the power supply control for described communication equipment 30, and receive described electric quantity data and undertaken described high-frequency switching power supply module 201 controlling for the charging of described direct current supply module 202, namely described on-off control unit 2032 is not more than the upper voltage limit of described communication equipment 30 according to the float charge voltage of the described electric quantity data described direct current supply module 102 of monitoring, control the described online floating charge of direct current supply module 102, described float charge voltage is more than the upper voltage limit of described communication equipment 30, control the charging of described direct current supply module 102 off-line.
Specifically, in the present embodiment, the relay and switching device that are connected in parallel it are provided with between described direct current supply module 202 and described communication equipment 30.Thus on-off control unit 2032, send to described switch device conductive specifically for generating described power supplying control signal, more described relay is turned on, control described direct current supply module 202 and discharge for described communication equipment 30.
Wherein, described switching device, it is specially the switching device being made up of silicon controlled rectifier, certainly, above-mentioned switching device is not limited to this.
Described power switching buffer module 204, couple with described high-frequency switching power supply module 201, Monitoring and Controlling module 203 and communication equipment 30 phase respectively, the electric energy provided for receiving described high-frequency switching power supply module 201 is charged, and described communication equipment 30 is carried out instantaneous power by the emergency service signal receiving the transmission of described Monitoring and Controlling module 203 when described mains failure.
As a kind of optimal way of the present embodiment, power switching buffer module 204, it is specially the power switching buffer module being made up of capacitor；Wherein, this power switching buffer module 204 receives emergency service signal described communication equipment 30 is carried out instantaneous power the duration that described Monitoring and Controlling module 203 sends is 15 milliseconds.And in the present embodiment, the startup of the direct current supply module 202 be made up of plumbous carbon accumulator battery is consuming time is 10 milliseconds, say, that communication equipment 30, in the power supply sky interim electric energy supply having enough durations of window, does not have stoppage in transit and delays machine.
Embodiment three
For the high-frequency switching power supply module 101/201 in above-described embodiment one and two, under a kind of mode in actual applications, it is made up of at least two rectification module, specifically, high-frequency switching power supply module can by two groups of rectification modules: G group (power supply guarantee group, comprise rectification module described at least two) and C group (charging guarantee group, comprise rectification module described at least two) composition, concrete work process is as follows:
First, high-frequency switching power supply module 101/201 accesses outside civil power, also for described plumbous carbon battery charging while providing electric energy for communication equipment 30；Meanwhile, Monitoring and Controlling module 103/203 monitors the output voltage values of rectification module and the charged state of current value and plumbous carbon accumulator battery in real time.
Afterwards, after plumbous carbon accumulator battery is fully charged, Monitoring and Controlling module 103/203 controls the C group in high-frequency switching power supply module 101/201 and disconnects and the connection of outside civil power, (output voltage of G group is less than the output voltage of plumbous carbon accumulator battery with low-voltage no-load running for G group, but the running voltage higher than communication equipment 30), now plumbous carbon accumulator battery is discharged, and powers for described communication equipment 30.
Then, after plumbous carbon accumulator battery electric discharge terminates, Monitoring and Controlling module 103/203 controls rectification module in the C group in high-frequency switching power supply module 101/201 and all works (rectification module in C group accesses described outside civil power again, for plumbous carbon battery charging) with the float charge voltage set.
Embodiment four
Below in conjunction with Fig. 3, the concrete application of the electric power system 20 utilizing plumbous carbon battery to implement communication system peak load shifting described in embodiment two is described in detail.
As it is shown on figure 3, the electric power system 20 utilizing plumbous carbon battery to implement communication system peak load shifting of the present invention can be realized by circuit structure in figure.Wherein,
High-frequency switching power supply module 201 is constituted by organizing rectification module more: i.e. power supply guarantee group (G group is designated GDMK in figure) and charging guarantee group (C group is designated CDMK in figure)；Direct current supply module 202 is made up of plumbous carbon accumulator battery；Monitoring and Controlling module 203 includes city's electro-detection unit and controls module；Power switching buffer module 204 is specially capacitor CD；It addition, be provided with between direct current supply module 202 and communication equipment 30 relay J D and controllable silicon KG, this relay J D in parallel with controllable silicon KG after, access between direct current supply module 202 and communication equipment 30.
Specifically:
Described high-frequency switching power supply module 201 is made up of (value of N is determined divided by individual module rated current, and total current calculates according to 0.25C charging current+load current) by total current N+2 rectification module, and is divided into two groups: G group and C group.
Described direct current supply module 102 is made up of plumbous carbon accumulator battery, only calculates with monomer voltage 2v/, and direct current 48V electric power system adopts 24 joints to be composed in series；Direct current 240V electric power system adopts 120 joints to be composed in series；Plumbous carbon accumulator battery can install one or more groups, and total capacity is discharged entirely according to load current value peak, at ordinary times section, is not less than calculating in 16 hours；Or the peak period electric discharge, at ordinary times section do not fill and do not put, be not less than calculating in 8 hours.
Described Monitoring and Controlling module 203 is made up of the control chip that model is RS485, and bus is connected with described rectification module, completes module current-sharing, charging current limiter, the timing function such as discharge and recharge, fault alarm；Adopting RS232 interface, being connected (not shown, it is possible to be adjusted according to the needs of practical application, it is also possible to corresponding data is set at control chip, thus not being connected with Surveillance center, to be not intended that limitation of the invention) with described Surveillance center.
Specific works process is as follows:
Described electric power system can be designed as two time periods of every natural gift and is powered work, and first time period is the paddy electricity stage, and system is Float duty；Second time period was the non-valley electricity stage, and system is electric discharge duty.Each cycle period is 24 hours.If 0 o'clock to 8 o'clock is Float duty, then 8 o'clock to 24 o'clock every day was discharge condition (can arrange flexibly according to the peak valley situation of local power supply department).
Adopt direct current 48V electric power system, normally export electric current 45A such as load；Described plumbous carbon accumulator adopts 24 joints to be composed in series, and average voltage 2V calculates by electric discharge for 16 hours, selects 500AH two groups, float charge voltage 54V, and electric discharge end of a period takes 45V, described overall system capacity configuration 1000AH.Rectification module total capacity presses 0.25C charging current loading Current calculation, and rectification module configuration adopts N+2 configuration, altogether configuration 48V/50A rectification module 8；When described electric power system is run, automatically selecting 2 modules is G group, and 6 modules are C group；Charge period C group is work all；Electric discharge period automatic Close All.
When charging voltage rises to the upper voltage limit of communication system, namely when 48V system is 56V, control module and receive accumulator battery signal, control C group rectification module transient voltage immediately lower than G group rectification module, release JG and KG simultaneously, accumulator battery off-line charges, and accumulator battery is only individually charged by charging module group with monomer voltage 2.45V/；Floating charge module group is individually powered to communication system.
During floating charge module is individually powered to communication system, there is mains failure, city's electro-detection unit receives this signal, start KG and JD immediately, system will by accumulator battery access communications system power supply in 10 milliseconds, supply module output loop capacitor CD is arranged to maintain 15 milliseconds, so communication equipment is powered normally in handoff procedure.
Arriving when charging arranges the time, accumulator is not up to charging end of a period condition, and system does not proceed to discharge condition, continues charging, is simultaneously emitted by critical alarm, notifies that attendant's inspection processes；Arriving when charging arranges the time, accumulator reaches charging end of a period condition, and system is automatically into electric discharge duty；In discharge process, when electric discharge setting has not timed out, accumulator reaches electric discharge end of a period condition in advance, and commutator float charge voltage is returned to 54V by system automatically, enters floating charge state, is simultaneously emitted by critical alarm, notifies that attendant's inspection processes；When in discharge process, system voltage changed in predetermined normal range, electric discharge arranges the time and arrives, and float charge voltage returns to 56V, and charging module group is run automatically simultaneously, system singly fills state by automatically proceeding to floating charge state, the confession of power supply group list and charging group, enters next round circulation.
It addition, described electric power system can realize multiple warning function:
1, general alarm
Working method conversion is reported to the police: arranging in timing working status time period, timing time does not arrive, and there occurs that duty is changed, but system output voltage is in safety range: 48V system is not less than 47V, 240V system and is not less than 235V；
Module failure is reported to the police: during floating charge, arbitrary module failure, it is impossible to normally export.
2, emergency alarm:
Brownout report to the police: system output voltage 48V system lower than 46.5V, 240V system lower than 230V；
Have a power failure and report to the police: in timing charging interval section (Float duty), mains failure occurs；
, there is (the last week compares) that voltage downward trend is abnormal with time period meansigma methods in discharge voltage abnormal alarm: in the timing discharging time period；
, there is (the last week compares) of curent change trend anomaly with time period meansigma methods in discharge current abnormal alarm: in the timing discharging time period；
Extremely change warning: timing working time does not arrive, and there occurs that duty change, and system output voltage exception: 48V system lower than 47V, 240V system lower than 235V；
Charging current abnormal alarm: at the charging initial stage, charging current is not reaching to cut-off current；
Charging voltage abnormal alarm: charging voltage exceedes setting value 5%；
Charging capacity abnormal alarm: charging timing time arrives, not up to charging end of a period standard；
Discharge capacity abnormal alarm: do not arrive during discharge gage, arrives system end of a period voltage in advance；
Multimode fault alarm: during floating charge, 2 only reach above module failure, it is impossible to normally export.
Compared with prior art, a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting of the present invention, reach following effect:
1) present invention is by utilizing jumbo plumbous carbon battery as the energy storage device of electric power system, it is possible to is effectively increased charge capacity, provides sufficient electric energy supply for electric power system；And the discharge and recharge number of times of the plumbous carbon battery adopted due to electric power system of the present invention is more than 4 times of existing plumbous battery, and cycle period is long, extends the service life of system accumulator battery；Electric power system is provided with corresponding power switching buffer cell, it is possible to the power supply sky window phase when power switching is that communication equipment is powered, the problem efficiently solving interval length that is unstable in existing peak load shifting electric power system and that be powered switching.
2) present invention timesharing can also implement different work and control mode simultaneously automatically, when accumulator charging voltage is higher than communication system upper voltage limit, the automatic off-line charging of accumulator, and accumulator automatically accesses and is powered when alternating current (being called civil power in subsequent embodiment) has a power failure, thus furthermore achieved that the power supply of the peak load shifting mode of electrical network.
3) due to the fact that its plumbous carbon battery utilized is high temperature resistant battery, it is possible to be greatly improved in electric power system power machine room set temperature, thus reducing air-conditioning power consumption, reduce operating cost, and reduce the potential safety hazard of electrical network, reach effects of energy saving and emission reduction, save electricity cost.
Described above illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, it is to be understood that the present invention is not limited to form disclosed herein, it is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and in invention contemplated scope described herein, can be modified by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change are without departing from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (10)
1. one kind utilizes the electric power system that communication system peak load shifting implemented by plumbous carbon battery, incoming transport electricity also couples mutually with communication equipment, it is characterised in that this electric power system includes: high-frequency switching power supply module, direct current supply module, Monitoring and Controlling module and power switching buffer module, wherein
Described high-frequency switching power supply module, for described alternating current being sent to described power switching buffer module, and according to the power supplying control signal received from described Monitoring and Controlling module, respectively the described alternating current of the terminal voltage and described direct current supply module that are sent to described communication equipment is carried out on-off control；
Described direct current supply module, for receiving power supply, the plumbous carbon accumulator in this direct current supply module is carried out float type charging, it is that described communication equipment is powered according to the described power supplying control signal received from described Monitoring and Controlling module, and receives electric quantity data Real-time Feedback after the electric quantity monitoring signal that described Monitoring and Controlling module sends to described Monitoring and Controlling module；
Described Monitoring and Controlling module, for monitoring the power supply state of described alternating current in real time, when described AC outage, starts described power switching buffer module, described direct current supply module is carried out control of discharge simultaneously；When described AC-powered, described power supplying control signal sends extremely described high-frequency switching power supply module be powered described communication equipment controlling, and the float charge voltage according to the described electric quantity data described direct current supply module of monitoring is not more than described communication equipment upper voltage limit, control the described online floating charge of direct current supply module, described float charge voltage, more than described communication equipment upper voltage limit, controls the charging of described direct current supply module off-line；
Described power switching buffer module, the electric energy provided for receiving described high-frequency switching power supply module is charged, and described communication equipment is carried out instantaneous power by the control receiving described Monitoring and Controlling module when described AC outage.
2. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 1, it is characterised in that described Monitoring and Controlling module, farther includes: monitoring unit and on-off control unit, wherein,
Described monitoring unit, power supply state for monitoring described alternating current in real time generates alternate current states data and sends to described on-off control unit, and generating the transmission of described electric quantity monitoring signal to described direct current supply module, the described electric quantity data receiving this direct current supply module Real-time Feedback sends to described on-off control unit；
Described on-off control unit, for the described alternate current states data received according to described monitoring unit, when described AC outage, generate emergency service signal to send to described power switching buffer module, being simultaneously generated described power supplying control signal to turn between described direct current supply module and described communication equipment, controlling described direct current supply module is the electric discharge of described communication equipment；When described AC-powered, by described power supplying control signal by open circuit between described direct current supply module and described communication equipment, described power supplying control signal is sent extremely described high-frequency switching power supply module simultaneously and carries out the power supply control for described communication equipment, and the float charge voltage according to the described electric quantity data described direct current supply module of monitoring is not more than described communication equipment upper voltage limit, control the described online floating charge of direct current supply module, described float charge voltage, more than described communication equipment upper voltage limit, controls the charging of described direct current supply module off-line.
3. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 2, it is characterised in that described direct current supply module be provided with the relay and switching device that can control to be connected between described communication equipment.
4. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 3, it is characterized in that, described on-off control unit, it is further used for generating described power supplying control signal to send to described switch device conductive, being turned on by described relay, controlling described direct current supply module is the electric discharge of described communication equipment again.
5. such as a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as described in arbitrary in claim 3 to 4, it is characterised in that described switching device, the further switching device for being made up of silicon controlled rectifier.
6. such as a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as described in arbitrary in claim 1 to 2, it is characterised in that described power switching buffer module, further the power switching buffer module for being made up of capacitor；The duration that described communication equipment carries out during this condenser capacity maintenance AC outage instantaneous power is 15 milliseconds.
7. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 1, it is characterised in that described high-frequency switching power supply module, farther includes: high frequency charhing unit and high frequency power supply unit, wherein,
Described high frequency charhing unit, for according to the power supplying control signal received from described Monitoring and Controlling module being the charging of described direct current supply module, disconnecting the connection with described alternating current after described direct current supply module is charged, again accessing described alternating current after described direct current supply module discharge is the charging of described direct current supply module；
Described high frequency power supply unit, for the electric energy of the described alternating current accessed is sent to described power switching buffer module, and is that described communication equipment is powered according to the power supplying control signal received from described Monitoring and Controlling module.
8. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 7, it is characterized in that, described high-frequency switching power supply module farther includes: charging module group and supply module group, this charging module group and supply module group are made up of at least two rectification module respectively, wherein
When in charging process, voltage is not more than the described communication equipment upper limit, described plumbous carbon accumulator is carried out floating charge by described charging module group and supply module group simultaneously；When in charging process, voltage is more than the described communication equipment upper limit, described charging module group is to described plumbous carbon accumulator charging, and described communication equipment is powered by described supply module group.
9. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 1, it is characterised in that described direct current supply module, is the direct current supply module being made up of plumbous carbon accumulator battery further.
10. a kind of electric power system utilizing plumbous carbon battery to implement communication system peak load shifting as claimed in claim 1, it is characterised in that described Monitoring and Controlling module, further for having the Monitoring and Controlling module of control chip.
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| CN201789318U (en) * | 2010-09-03 | 2011-04-06 | 上海戎讯通信技术有限公司 | Mobile phone power supply device with leather case battery for power supply |
| CN103151790A (en) * | 2013-03-25 | 2013-06-12 | 北京时空科技有限公司 | Intelligent power supply system of peak moving and valley filling |
| CN203813451U (en) * | 2014-05-14 | 2014-09-03 | 中塔新兴通讯技术有限公司 | Lead-carbon battery-based peak load shifting type power supply system for communication system |
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| CN201789318U (en) * | 2010-09-03 | 2011-04-06 | 上海戎讯通信技术有限公司 | Mobile phone power supply device with leather case battery for power supply |
| CN103151790A (en) * | 2013-03-25 | 2013-06-12 | 北京时空科技有限公司 | Intelligent power supply system of peak moving and valley filling |
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