CN106877481B - A kind of power-supply system and method for parallel-operation expansion - Google Patents
A kind of power-supply system and method for parallel-operation expansion Download PDFInfo
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- CN106877481B CN106877481B CN201510926348.8A CN201510926348A CN106877481B CN 106877481 B CN106877481 B CN 106877481B CN 201510926348 A CN201510926348 A CN 201510926348A CN 106877481 B CN106877481 B CN 106877481B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
Abstract
The invention discloses a kind of power-supply system of parallel-operation expansion and methods, the system is connected to load by busbar, for the busbar of battery and former power-supply system for load supplying, the power-supply system includes: monitoring device, for monitoring the busbar voltage of the busbar, determine that the former power-supply system is the charging modes of battery charging according to the busbar voltage；Charging unit, for being battery charging according to the charging modes.The advantageous effect of the invention are as follows: by the way that the positive negative busbar of the old and new's power supply is connected, and it is handled by the software that new power monitors, realize that new power follows old power supply floating charge or fills, parallel-operation expansion is set to carry out in the power-supply system of different manufacturers, and can greatly expand the dilatation range of old power-supply system, there is huge market value.
Description
Technical field
The present invention relates to power-supply systems, more specifically to the power-supply system and method for a kind of parallel-operation expansion.
Background technique
Currently, environmentally protective concept is carried out by country, and in order to avoid repeated construction base station, the big operator of integration three is mobile, electric
The existing base station resource of letter, connection, country has set up steel tower company, the previous three big respective base station equipments of operator has been integrated into
Inside one base station, the load of power-supply system certainly will be increased in this way, and old power-supply system has been unable to satisfy big negative after integrating
It carries, needs to old power-supply system dilatation.
Power supply used in storage base station, from domestic and international big and small tens producers, each producer has various again
Model.The power parallel machine problem to be solved is exactly that new power will follow old power supply co-ordination, and the prior art is in the old and new
Communication connection is established between power supply, by communication, new power obtains the charged state of old power supply, filled followed by old power supply or
Floating charge.Because the communication interface that different electrical power producer provides is different, communications protocol is different or even some producers do not provide
Interface, thus it is this by communication connection and machine can only have communication interface or dry contact output power-supply system on realize,
Greatly limit the parallel-operation expansion of storage base station in the market.To sum up, the parallel-operation expansion scheme of the prior art has the disadvantage in that
1, parallel-operation expansion can not be carried out in the power-supply system of different manufacturers；
2, new power can not follow old power supply co-ordination well.
Summary of the invention
The technical problem to be solved in the present invention is that can not be in the power supply of different manufacturers for parallel-operation expansion in the prior art
It is carried out in system, and new power can not follow the defect of old power supply co-ordination well, provide a kind of power supply of parallel-operation expansion
System and method.
The technical solution adopted by the present invention to solve the technical problems is:
The power-supply system for constructing a kind of parallel-operation expansion is connected to load, for for load supplying by busbar
The busbar of battery and former power-supply system, the power-supply system include:
Monitoring device determines the former power supply system according to the busbar voltage for monitoring the busbar voltage of the busbar
System is the charging modes of battery charging；
Charging unit, for being battery charging according to the charging modes.
In the systems described in the present invention, the busbar of the power-supply system includes positive busbar and negative busbar；
The positive busbar is connected to the anode of the battery；
The negative busbar is connected to the cathode of the battery.
In the systems described in the present invention, the charging modes include filling and floating charge, the monitoring device include:
Judgment module fills state or floating charge state for judging whether the battery is according to the busbar voltage；
Processing module is filled, for detecting whether the busbar voltage is located when the battery is in the floating charge state
Whether it is greater than the first preset value in the value of propradation or the busbar voltage, if the busbar voltage is in propradation or institute
The value for stating busbar voltage is greater than the first preset value, it is determined that and the original power-supply system is to fill to the charging modes of the battery,
The battery is filled to control the charging unit；Wherein, first preset value is under the floating charge state
Voltage value and the first voltage value and；
Floating charge processing module, for the battery be in it is described fill state when, whether big detect the busbar voltage
In the second preset value, if the busbar voltage is greater than the second preset value, it is determined that the original power-supply system fills the battery
Electric mode is floating charge, carries out floating charge to the battery to control the charging unit；Wherein, second preset value is to fill
Voltage value and second voltage value under state and, it is described to fill the voltage value under state greater than the voltage under the floating charge state
Value.
On the other hand, a kind of method of parallel-operation expansion is provided, using above system characterized by comprising
The busbar voltage for monitoring the busbar determines that the former power-supply system is that the battery fills according to the busbar voltage
The charging modes of electricity；
It is battery charging according to the charging modes.
In method of the present invention, the charging modes include filling and floating charge, the mother of the monitoring busbar
Voltage is arranged, determines that the step of former power-supply system is the charging modes of battery charging includes: according to the busbar voltage
Judge whether the battery is according to the busbar voltage and fills state or floating charge state；
If the battery is in the floating charge state, detect whether the busbar voltage is in propradation or the busbar
Whether the value of voltage is greater than the first preset value, if the value that the busbar voltage is in propradation or the busbar voltage is greater than the
One preset value, it is determined that the original power-supply system is to fill to the charging modes of the battery, to control the charging unit
The battery is filled；Wherein, first preset value is the voltage value and the first voltage value under the floating charge state
With；
If the battery, which is in described, fills state, detect whether the busbar voltage is greater than the second preset value, if described
Busbar voltage is greater than the second preset value, it is determined that the original power-supply system is floating charge to the charging modes of the battery, to control
It makes the charging unit and floating charge is carried out to the battery；Wherein, second preset value is the voltage value filled under state and
The sum of two voltage values, it is described to fill the voltage value under state greater than the voltage value under the floating charge state.
In method of the present invention, if the busbar voltage is in propradation, it is determined that the original power supply
System is to fill to the charging modes of the battery, to control the step of charging unit fills battery packet
Include following sub-step:
S101, setting preset time, enabling timing time is 0；
S102, judge whether the busbar voltage is in propradation, if so, step S103 is gone to, if it is not, going to step
S104；
S103, the timing time add up, and go to step S105；
S104, the timing time reset to 0, go to step S102；
S105, judge whether timing time is more than or equal to the preset time, if so, step S106 is gone to, if it is not, going to
Step S102；
S106, the control charging unit fill the battery.
In method of the present invention, if the value of the busbar voltage is greater than the first preset value, it is determined that described
Former power-supply system is to fill to the charging modes of the battery, to control what the charging unit filled the battery
Step includes following sub-step:
S201, setting preset time, enabling timing time is 0；
S202, judge whether the busbar voltage is greater than the first preset value, if so, step S203 is gone to, if it is not, going to step
Rapid S204；
S203, the timing time add up, and go to step S205；
S204, the timing time reset to 0, go to step S202；
S205, judge whether timing time is more than or equal to the preset time, if so, step S206 is gone to, if it is not, going to
Step S202；
S206, the control charging unit fill the battery.
In method of the present invention, if the busbar voltage is greater than the second preset value, it is determined that the former electricity
Source system is floating charge to the charging modes of the battery, to control the step of charging unit carries out floating charge to the battery
Including following sub-step:
S301, setting preset time, enabling timing time is 0；
S302, judge whether the busbar voltage is greater than the second preset value, if so, step S303 is gone to, if it is not, going to step
Rapid S304；
S303, the timing time add up, and go to step S305；
S304, the timing time reset to 0, go to step S302；
S305, judge whether timing time is more than or equal to the preset time, if so, step S306 is gone to, if it is not, going to
Step S302；
S306, the control charging unit carry out floating charge to the battery.
The power-supply system and method for a kind of parallel-operation expansion disclosed above have the advantages that by the old and new's power supply
Positive negative busbar connection, and by new power monitor software handle, realize new power follow old power supply floating charge or fill, make simultaneously
Machine dilatation can be carried out in the power-supply system of different manufacturers, and can greatly expand the dilatation range of old power-supply system, tool
There is huge market value.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the power-supply system of parallel-operation expansion provided by the invention；
Fig. 2 is a kind of flow chart of the method for parallel-operation expansion provided by the invention；
Fig. 3 is the flow chart for filling processing method that first embodiment of the invention provides；
Fig. 4 is the flow chart for filling processing method that second embodiment of the invention provides；
Fig. 5 is the flow chart of floating charge processing method provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Power-supply system uses relatively high charging voltage (example one is filling comprising two ways to the charging of battery 1
Such as 56.4V), in order to 1 cell voltage of quick charge and balancing battery；One is floating charges, use lower charging electricity
It presses (such as 53.5V), maintains the saturation voltage of battery 1.The present invention provides the power-supply system and method for a kind of parallel-operation expansion, mesh
Be, the old and new's power parallel machine work, new power allows for following old power supply to fill and floating charge.As the positive and negative mother of the old and new's power supply
When arranging 2 connection, the monitoring on new power acquires the voltage on busbar 2 in real time, and judging old power supply currently is to fill state or float
State is filled, is filled or floating charge state so that old power supply be followed to enter.It here include two aspect contents, one is that new power follows always
Power supply enters from floating charge fills state；One is that new power follows old power supply to retract floating charge state from the state of filling.
Referring to Fig. 1, Fig. 1 is a kind of structural schematic diagram of the power-supply system 3 of parallel-operation expansion provided by the invention, should simultaneously be expanded machine
The power-supply system 3 of appearance is connected to load by busbar, for the busbar of battery and former power-supply system 4 for load supplying,
The power-supply system 3 includes monitoring device and charging unit.Wherein, power-supply system 3 is new power system, and former power-supply system 4 is
Old power-supply system.
Monitoring device is used to monitor the busbar voltage of the busbar, determines the former power-supply system according to the busbar voltage
4 charging modes to charge for the battery.
Charging unit is used to according to the charging modes be battery charging.
The busbar 2 of power-supply system 3 is electrically connected to the battery 1；The busbar 2 includes positive busbar 2 and negative busbar 2；It is described
Positive busbar 2 is connected to the anode of the battery 1；The negative busbar 2 is connected to the cathode of the battery 1.
Wherein, the charging modes include filling and floating charge, therefore further, and the monitoring device includes:
Processing module is filled, for detecting whether the busbar voltage is located when the battery is in the floating charge state
Whether it is greater than the first preset value in the value of propradation or the busbar voltage, if the busbar voltage is in propradation or institute
The value for stating busbar voltage is greater than the first preset value, it is determined that and the original power-supply system 4 is to fill to the charging modes of the battery,
The battery is filled to control the charging unit；Wherein, first preset value is under the floating charge state
Voltage value and the first voltage value and；
Floating charge processing module, for the battery be in it is described fill state when, whether big detect the busbar voltage
In the second preset value, if the busbar voltage is greater than the second preset value, it is determined that the original power-supply system 4 fills the battery
Electric mode is floating charge, carries out floating charge to the battery to control the charging unit；Wherein, second preset value is to fill
Voltage value and second voltage value under state and, it is described to fill the voltage value under state greater than the voltage under the floating charge state
Value.
Referring to fig. 2, Fig. 2 is a kind of flow chart of the method for parallel-operation expansion provided by the invention, the method for the parallel-operation expansion
Using above system comprising following steps:
The busbar voltage of S1, the monitoring busbar determine that the former power-supply system 4 is the electricity according to the busbar voltage
The charging modes of pond charging；Step S1 includes following sub-step:
S11, judge whether the battery is according to the busbar voltage and fill state or floating charge state；If filling shape
State then executes S12, if floating charge state, then executes S13.
If S12, the battery are in the floating charge state, detect whether the busbar voltage is in propradation or described
Whether the value of busbar voltage is greater than the first preset value, if the busbar voltage is in propradation or the value of the busbar voltage is big
In the first preset value, it is determined that the original power-supply system 4 is to fill to the charging modes of the battery, to control the charging
Device fills the battery；Wherein, first preset value is the voltage value and first voltage under the floating charge state
The sum of value；The situation of state is filled for entering in step S12, specially meeting any in following two condition can enter
Fill state.
Condition one are as follows: when detect 2 voltage of busbar be in propradation for a period of time t (t be timing time t, be greater than etc.
In 30 seconds), it enters and fills state.The situation fills processing method referring to Fig. 3, Fig. 3 for what first embodiment of the invention provided
Flow chart, if it is that 2 voltage of busbar described in step S22 be in propradation that this, which fills processing method, control described in
The sub-step that charging unit fills the battery 1 comprising:
S101, setting preset time t def, enabling timing time t is 0；
S102, judge whether 2 voltage of busbar is in propradation, if so, step S103 is gone to, if it is not, going to step
Rapid S104；
S103, the timing time t add up, and go to step S105；
S104, the timing time t reset to 0, go to step S102；
S105, judge whether timing time t is more than or equal to the preset time t def, if so, step S106 is gone to, if
It is no, go to step S102；
S106, the control charging unit fill the battery 1.
Condition two are as follows: when detecting that 2 voltage of busbar is higher than the value of float charge voltage set and adds V1 (V1 is default first voltage
Value, be more than or equal to 0.1 volt) when, and undergo a period of time t (t be timing time t, be more than or equal to 30 seconds) after, enter and fill
State.Referring to fig. 4, Fig. 4 is the flow chart for filling processing method that second embodiment of the invention provides to the situation, this fills processing
If the value that method is 2 voltage of busbar described in step S22 is greater than the first preset value, the charging unit is controlled to described
The sub-step that battery 1 is filled comprising:
S201, setting preset time t def, enabling timing time t is 0；
S202, judge whether 2 voltage of busbar is greater than the first preset value, if so, step S203 is gone to, if it is not, going to
Step S204；
S203, the timing time t add up, and go to step S205；
S204, the timing time t reset to 0, go to step S202；
S205, judge whether timing time t is more than or equal to the preset time t def, if so, step S206 is gone to, if
It is no, go to step S202；
S206, the control charging unit fill the battery 1.
If S13, the battery, which are in described, fills state, detect whether the busbar voltage is greater than the second preset value, if
The busbar voltage is greater than the second preset value, it is determined that and the original power-supply system 4 is floating charge to the charging modes of the battery, from
And it controls the charging unit and floating charge is carried out to the battery；Wherein, second preset value is the voltage value filled under state
With second voltage value and, it is described to fill the voltage value under state greater than the voltage value under the floating charge state.For step S13
In follow the state of filling that exits to enter floating charge state, ought specially detect 2 voltage of busbar be higher than setting even charging voltage value
Add V2 (V2 be preset second voltage value, be more than or equal to 0.1 volt) when, and undergo a period of time t (t be timing time t,
More than or equal to 30 seconds), it just exits and fills state.The situation is the stream of floating charge processing method provided by the invention referring to Fig. 5, Fig. 5
Cheng Tu fills described in control if the floating charge processing method is that 2 voltage of busbar described in step S23 is greater than the second preset value
Electric installation carries out the sub-step of floating charge to the battery 1 comprising:
S301, setting preset time t def, enabling timing time t is 0；
S302, judge whether 2 voltage of busbar is greater than the second preset value, if so, step S303 is gone to, if it is not, going to
Step S304；
S303, the timing time t add up, and go to step S305；
S304, the timing time t reset to 0, go to step S302；
S305, judge whether timing time t is more than or equal to the preset time t def, if so, step S306 is gone to, if
It is no, go to step S302；
S306, the control charging unit carry out floating charge to the battery 1.
It S2, is that the battery charges according to the charging modes.
To sum up, the present invention program applies in the parallel-operation expansion of power-supply system, it is only necessary to the positive and negative of the old and new's power-supply system
Busbar 2 connects, and new system can follow legacy system to power to load 5 and to the equal floating charge of battery 1.Its core concept is that detection is female
2 voltages are arranged, determines whether to enter to be filled with and exit by the variation of 2 voltage of busbar and fill.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (7)
1. a kind of power-supply system of parallel-operation expansion, which is characterized in that it is connected to load by busbar, for supplying for load
The busbar of the battery of electricity and former power-supply system, the power-supply system include:
Monitoring device determines that the former power-supply system is according to the busbar voltage for monitoring the busbar voltage of the busbar
The charging modes of the battery charging；
Charging unit, for being battery charging according to the charging modes, wherein the charging modes include filling and floating
It fills, new power system follows former power-supply system to fill or floating charge, when the connection of the busbar of the new power system, acquires institute in real time
The voltage on the busbar of former power-supply system is stated, judging former power-supply system currently is to fill state or floating charge state, to make new
Power-supply system follows former power-supply system to enter to fill or floating charge state；
The monitoring device includes:
Judgment module fills state or floating charge state for judging whether the battery is according to the busbar voltage；
Processing module is filled, for detecting whether the busbar voltage is in when the battery is in the floating charge state
Whether the state of liter or the value of the busbar voltage are greater than the first preset value, if the busbar voltage is in propradation or the mother
The value for arranging voltage is greater than the first preset value, it is determined that the original power-supply system be to the charging modes of the battery fill, thus
The charging unit is controlled to fill the battery；Wherein, first preset value is the voltage under the floating charge state
Value with the first voltage value and；
Floating charge processing module, for the battery be in it is described fill state when, detect whether the busbar voltage is greater than the
Two preset values, if the busbar voltage is greater than the second preset value, it is determined that charging side of the original power-supply system to the battery
Formula is floating charge, carries out floating charge to the battery to control the charging unit；Wherein, second preset value is to fill state
Under voltage value and second voltage value and, it is described to fill the voltage value under state greater than the voltage value under the floating charge state.
2. system according to claim 1, which is characterized in that the busbar of the power-supply system includes positive busbar and negative mother
Row；
The positive busbar is connected to the anode of the battery；
The negative busbar is connected to the cathode of the battery.
3. a kind of method of parallel-operation expansion, provides the system as claimed in claim 1 characterized by comprising
The busbar voltage for monitoring the busbar determines that the former power-supply system is battery charging according to the busbar voltage
Charging modes；
It is battery charging according to the charging modes, wherein new power system follows former power-supply system to fill or floating charge, when
When the busbar connection of the new power system, the voltage on the busbar of the former power-supply system is acquired in real time, judges former power supply system
System is currently to fill state or floating charge state, is filled or floating charge shape to make new power system that former power-supply system be followed to enter
State.
4. according to the method described in claim 3, it is characterized in that, the busbar voltage of the monitoring busbar, according to described in
Busbar voltage determines that the step of former power-supply system is the charging modes of battery charging includes:
Judge whether the battery is according to the busbar voltage and fills state or floating charge state；
If the battery is in the floating charge state, detect whether the busbar voltage is in propradation or the busbar voltage
Value whether be greater than the first preset value, if to be greater than first pre- for the value that the busbar voltage is in propradation or the busbar voltage
If value, it is determined that the original power-supply system is to fill to the charging modes of the battery, to control the charging unit to institute
Battery is stated to be filled；Wherein, first preset value be the floating charge state under voltage value and the first voltage value and；
If the battery, which is in described, fills state, detect whether the busbar voltage is greater than the second preset value, if the busbar
Voltage is greater than the second preset value, it is determined that the original power-supply system is floating charge to the charging modes of the battery, to control institute
It states charging unit and floating charge is carried out to the battery；Wherein, second preset value is the voltage value filled under state and the second electricity
The sum of pressure value, it is described to fill the voltage value under state greater than the voltage value under the floating charge state.
5. if according to the method described in claim 4, it is characterized in that, the busbar voltage is in propradation, really
The fixed former power-supply system is to fill to the charging modes of the battery, is carried out to control the charging unit to the battery
The step of filling includes following sub-step:
S101, setting preset time, enabling timing time is 0；
S102, judge whether the busbar voltage is in propradation, if so, step S103 is gone to, if it is not, going to step
S104；
S103, the timing time add up, and go to step S105；
S104, the timing time reset to 0, go to step S102；
S105, judge whether timing time is more than or equal to the preset time, if so, step S106 is gone to, if it is not, going to step
S102；
S106, the control charging unit fill the battery.
6. if according to the method described in claim 4, it is characterized in that, the value of the busbar voltage is default greater than first
Value, it is determined that the original power-supply system is to fill to the charging modes of the battery, to control the charging unit to described
The step of battery is filled includes following sub-step:
S201, setting preset time, enabling timing time is 0；
S202, judge whether the busbar voltage is greater than the first preset value, if so, step S203 is gone to, if it is not, going to step
S204；
S203, the timing time add up, and go to step S205；
S204, the timing time reset to 0, go to step S202；
S205, judge whether timing time is more than or equal to the preset time, if so, step S206 is gone to, if it is not, going to step
S202；
S206, the control charging unit fill the battery.
If 7. according to the method described in claim 4, it is characterized in that, the busbar voltage be greater than the second preset value,
Determine that the former power-supply system is floating charge to the charging modes of the battery, thus control the charging unit to the battery into
The step of row floating charge includes following sub-step:
S301, setting preset time, enabling timing time is 0；
S302, judge whether the busbar voltage is greater than the second preset value, if so, step S303 is gone to, if it is not, going to step
S304；
S303, the timing time add up, and go to step S305；
S304, the timing time reset to 0, go to step S302；
S305, judge whether timing time is more than or equal to the preset time, if so, step S306 is gone to, if it is not, going to step
S302；
S306, the control charging unit carry out floating charge to the battery.
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