CN105576749A - Method and system for controlling photovoltaic energy storage charging pile to run - Google Patents
Method and system for controlling photovoltaic energy storage charging pile to run Download PDFInfo
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- CN105576749A CN105576749A CN201511020239.6A CN201511020239A CN105576749A CN 105576749 A CN105576749 A CN 105576749A CN 201511020239 A CN201511020239 A CN 201511020239A CN 105576749 A CN105576749 A CN 105576749A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 255
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000005611 electricity Effects 0.000 claims description 33
- 238000010248 power generation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007115 recruitment Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
-
- H02J7/0027—
-
- 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
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention relates to the field of photovoltaic power generation application control, and particularly discloses a method and a system for controlling a photovoltaic energy storage charging pile to run. The method for controlling the photovoltaic energy storage charging pile to run disclosed by the invention comprises the following steps: controlling the photovoltaic energy storage charging pile to enter a first mode; charging to-be-charged equipment by an energy storage battery in the photovoltaic energy storage charging pile; and adjusting an output power variation of the energy storage battery which is being charged. The method for controlling the photovoltaic energy storage charging pile to run disclosed by the invention can timely adjust the electric quantity of the energy storage battery of the photovoltaic energy storage charging pile by electric supply, and prevents the service lifetime of the energy storage battery from being affected by deep discharge.
Description
[technical field]
The present invention relates to photovoltaic generation application controls field, particularly relating to the method and system run for controlling photovoltaic energy storage charging pile.
[background technology]
Along with popularizing of the theory such as new forms of energy, low-carbon (LC), the acceptance level of pure electric vehicle in people's life is more and more higher, therefore, the parking lot of many communities adds a large amount of alternating-current charging piles, this certainly will cause huge impact to the electrical network of community, even can cause the paralysis of electrical network in the peak period of charging.The application of distributed photovoltaic energy storage charging pile scheme can solve this problem to the utmost, but the useful life of energy-storage battery, but become the key factor of restriction program fast development.The impact on energy-storage battery useful life of the degree of depth of battery system discharge and recharge and multiplying power thereof is very big, if do not have rational operational mode, the infinity of photovoltaic energy storage charging pile uses the useful life then damaging its energy-storage battery.
[summary of the invention]
The uncontrolled use that the present invention is intended to solve photovoltaic energy storage charging pile can damage the problem in the useful life of its energy-storage battery, and provide a kind of for controlling the method and system that photovoltaic energy storage charging pile runs, technical scheme is as follows:
On the one hand, the invention provides a kind of method run for controlling photovoltaic energy storage charging pile to comprise:
Control photovoltaic energy storage charging pile and enter first mode;
The energy-storage battery in described photovoltaic energy storage charging pile is adopted to charge to charging equipment;
Adjust the power output variable quantity of the described energy-storage battery charged.
In certain embodiments, before adjusting the step of the power output variable quantity of the described energy-storage battery charged, described method also comprises:
The realtime power obtaining each described photovoltaic energy storage charging pile charged, the number of described photovoltaic energy storage charging pile of charging, and the rated power of electrical network and use power;
Margin power and other power of described civil power is calculated by described rated power, described use power, described number and described realtime power, and the power output variable quantity of the described energy-storage battery charged according to described margin power and other power calculation.
In certain embodiments, after adjusting the step of the power output variable quantity of the described energy-storage battery charged, described method also comprises:
Civil power is adopted to replace described photovoltaic energy storage charging pile to be charging equipment charging.
In certain embodiments, described method also comprises:
Control described photovoltaic energy storage charging pile and enter the second pattern;
If photovoltaic work, photovoltaic is adopted to be the charging of described energy-storage battery;
If the underfill of energy-storage battery electricity, adopt civil power to be charging equipment charging, if energy-storage battery electricity is full of, adopt photovoltaic to be charging equipment charging.
In certain embodiments, control after described photovoltaic energy storage charging pile enters the step of the second pattern, described method also comprises:
If photovoltaic does not work, civil power is adopted to be respectively described energy-storage battery and the charging of described charging equipment.
On the other hand, provided by the invention a kind of for controlling the system that photovoltaic energy storage charging pile runs, comprising:
Control unit, enters first mode for controlling photovoltaic energy storage charging pile;
Charhing unit, charges to charging equipment for adopting the energy-storage battery in described photovoltaic energy storage charging pile;
Adjustment unit, for adjusting the power output variable quantity of the described energy-storage battery charged.
In certain embodiments, described system also comprises:
Acquiring unit, for the realtime power that obtains each described photovoltaic energy storage charging pile charged and the number of described photovoltaic energy storage charging pile of charging, and the rated power of network system and use power;
Computing unit, for being calculated margin power and other power of described network system by described rated power, described use power, described number and described realtime power, and the power output variable quantity of the described energy-storage battery charged according to described margin power and other power calculation.
In certain embodiments, described system also comprises:
Substituting unit: replace described photovoltaic energy storage charging pile to be charging equipment charging for adopting civil power.
In certain embodiments, described control unit also enters the second pattern for controlling described photovoltaic energy storage charging pile;
If photovoltaic work, described charhing unit is also for adopting photovoltaic to be the charging of described energy-storage battery;
If the underfill of energy-storage battery electricity, described charhing unit, also for adopting civil power to be charging equipment charging, if energy-storage battery electricity is full of, adopts photovoltaic to be charging equipment charging.
In certain embodiments, if photovoltaic does not work, described charhing unit is also for adopting civil power to be respectively described energy-storage battery and the charging of described charging equipment.
The beneficial effect of the specific embodiment of the invention is, provided by the invention for controlling the method that photovoltaic energy storage charging pile runs, civil power can be adopted in time to carry out the adjustment of electricity to the energy-storage battery of photovoltaic energy storage charging pile, prevent energy-storage battery from affecting its useful life because of deep discharge.
[accompanying drawing explanation]
The energy flow of the photovoltaic energy storage charging pile that Fig. 1 provides for the embodiment of the present invention is to schematic diagram.
The environment for use energy flow of the photovoltaic energy storage charging pile that Fig. 2 provides for the embodiment of the present invention is to schematic diagram.
A kind of method schematic flow sheet in the flrst mode for controlling the operation of photovoltaic energy storage charging pile that Fig. 3 provides for the embodiment of the present invention.
The method schematic flow sheet in the flrst mode that the another kind that Fig. 4 provides for the embodiment of the present invention runs for controlling photovoltaic energy storage charging pile.
A kind of method schematic flow sheet under the second mode for controlling the operation of photovoltaic energy storage charging pile that Fig. 5 provides for the embodiment of the present invention.
The method schematic flow sheet under the second mode that the another kind that Fig. 6 provides for the embodiment of the present invention runs for controlling photovoltaic energy storage charging pile.
A kind of overall flow schematic diagram for controlling the method that photovoltaic energy storage charging pile runs that Fig. 7 provides for the embodiment of the present invention.
A kind of system configuration schematic diagram for controlling the operation of photovoltaic energy storage charging pile that Fig. 8 provides for the embodiment of the present invention.
The system configuration schematic diagram that the another kind that Fig. 9 provides for the embodiment of the present invention runs for controlling photovoltaic energy storage charging pile.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
Refer to Fig. 1, for the energy flow of photovoltaic energy storage charging pile of the present invention is to schematic diagram.Base unit of the present invention is photovoltaic energy storage charging pile, photovoltaic is solar photovoltaic generation system, the photovoltaic effect of solar cell semi-conducting material can be utilized, solar radiation directly can be converted to electric energy, photovoltaic can be energy-storage battery charging by inverter, can be also directly charging equipment charging by inverter; Civil power that is to say the alternating current that electrical network provides, and can be energy-storage battery charging by inverter, can be also directly charging equipment charging by bypass; Energy-storage battery can be specifically lead acid accumulator, lithium battery etc., can be charged by photovoltaic and civil power, can also be charging equipment charging by inverter; The unnecessary electricity that photovoltaic energy storage charging pile is changed by photovoltaic can also feed back to civil power.
Photovoltaic energy storage charging pile in use, the power P of photovoltaic
v, energy-storage battery power P
b, charging gun power P
qwith the power P of civil power
spower relation be: P
q=P
s+ P
v+ P
b, that is to say that the power output of charging gun equals the input power of photovoltaic, energy-storage battery and civil power.
As shown in Figure 2, the rated power P at electrical network critical point is fixed value, uses power P
yfor instantaneous power when this utility grid normally uses, be the instantaneous value that can survey, P
zpower sum for during all photovoltaic energy storage charging pile concurrent workings used: P
z=P
o1+ P
o2+ ... + P
on, other power P
cfor the power that non-photovoltaic energy storage charging pile consumes, such as residential electricity consumption etc.Wherein, power P is used
ycomprise other power P
cwith the power P of all photovoltaic energy storage charging piles used
z: P
y=P
z+ P
c.
Embodiment 1
As shown in Figure 3, the method run for controlling photovoltaic energy storage charging pile provided by the invention comprises the following steps:
S101: control photovoltaic energy storage charging pile and enter first mode.
In the present embodiment, server controls photovoltaic energy storage charging pile enters first mode, and this first mode is Night, photovoltaic does not work, and cannot export energy, and civil power is in peak times of power consumption, in this period, the power that residential electricity consumption etc. take is higher, makes other power P
capproximate rated power P.
S102: adopt the energy-storage battery in described photovoltaic energy storage charging pile to charge to charging equipment.
Photovoltaic energy storage charging pile in the flrst mode, if there is charging equipment to need charging, can preferentially adopt energy-storage battery to be charged to charging equipment by inverter.In this mode, utility grid is in peak times of power consumption, and the power that residential electricity consumption etc. take is higher, adopts energy-storage battery to charge to charging equipment, reduces the impact to electrical network, ensure that the stability of utility grid.
S103: the power output variable quantity adjusting the described energy-storage battery charged.
Power output variable quantity can be the increase of power output or the reduction of power output, after the power output of energy-storage battery changes, the power output of civil power to energy-storage battery can be adopted to adjust.Usually, energy-storage battery is carrying out in charging process to charging equipment, along with the prolongation in charging interval, its power output can reduce because of the consumption of electricity, server just can control civil power and carry out supplementing of electricity to this energy-storage battery, prevent the deep discharge of energy-storage battery, and the useful life of energy-storage battery is had an impact.
Preferably, as shown in Figure 4, before step S103, the method run for controlling photovoltaic energy storage charging pile provided by the invention also comprises:
S1031: the realtime power obtaining each described photovoltaic energy storage charging pile charged, the number of described photovoltaic energy storage charging pile of charging, and the rated power of network system and use power.
Server obtains the realtime power P of each described photovoltaic energy storage charging pile charged
o1, P
o2p
on, the number n of the described photovoltaic energy storage charging pile charged, and the rated power P of network system and use power P
y.
S1032: the margin power and other power that are calculated described civil power by described rated power, described use power, described number and described realtime power, and the power output variable quantity of the described energy-storage battery charged according to described margin power and other power calculation.
Rated power P, the use power P of server by getting
y, the number n of described photovoltaic energy storage charging pile that charges, and realtime power P
o1, P
o2p
on, carry out following calculating:
1, realtime power P
o
In the present embodiment, utility grid is in peak times of power consumption, other power P
ccan fixed value be considered as within a period of time, directly draw by calculating, other power: P
c=P
y-P
z=P
y-(P
o1+ P
o2+ ... + P
on).Use power P
yfor the instantaneous value that can survey, all using the concurrent working of photovoltaic energy storage charging pile time power sum P
zwith use power P
yproportional: P
z=P
o1+ P
o2+ ... + P
on=P
y-P
c.
Server can by the use power P of detection of grid
ycalculate the average realtime power of the photovoltaic energy storage charging pile worked: P
o=(P
y-P
c)/n.
Server is to the realtime power P of photovoltaic energy storage charging pile
ocalculating be to prevent the large multiplying power of energy-storage battery from using electric energy, as this realtime power P
onumerical value when reaching 80% of energy-storage battery rated power, server can reduce the power output of energy-storage battery inverter, is auxiliaryly charged to charging equipment by bypass with electrical network.
2, margin power P
r
Margin power: P
r=P-P
y.Wherein, P is the rated power of electrical network, is fixed value, margin power P
rwith use power P
yinversely, in other power P
cwhen for fixed value, margin power P
rrecruitment be the power output reduction of the energy-storage battery of each photovoltaic energy storage charging pile worked; On the contrary, margin power P
rreduction be the power output recruitment of the energy-storage battery of each photovoltaic energy storage charging pile worked: P
j=P
r/ n=(P-P
y)/n, server controls the power output variable quantity P that civil power will calculate again
jenergy-storage battery is carried out to the adjustment of electricity.
When other power P
cclose to or when being greater than rated power P, by margin power P
rcalculating and server to the adjustment of electrical network, the effect of stable electrical network can be played.
3, the power output P of energy-storage battery
b
As shown in Figure 1, the power output P of single photovoltaic energy storage charging pile
bwith the power P of photovoltaic
v, charging gun power P
qwith the power P of civil power
srelevant, in the idle situation of photovoltaic: P
b=P
q-P
s-P
j=P
q-P
s-(P-P
y)/n.
Server is by calculating the power output variable quantity P of the energy-storage battery of photovoltaic energy storage charging pile
j, and monitor the power output P of photovoltaic energy storage charging pile energy-storage battery in real time
b, prevent energy-storage battery deep discharge, to damage its useful life, usually, battery remaining power is less than 20% of rated capacity, then can be considered deep discharge.
In the present embodiment, server in order to ensure the stability of utility grid, the margin power P of civil power
rshould be enough large, can not lower than 10% of rated power P.The running of whole system is the process of an adjustment in real time, therefore will maintain a dynamic equilibrium, that is to say the power output variable quantity P of photovoltaic energy storage charging pile
jneed the timely adjustment obtaining civil power.
Further, after step s 103, the method run for controlling photovoltaic energy storage charging pile also comprises:
S104: adopt civil power to replace described photovoltaic energy storage charging pile to be charging equipment charging.
After the peak times of power consumption of civil power are spent, that is to say other power P
cwhen reducing gradually, server can also adopt civil power to replace described photovoltaic energy storage charging pile to be charging equipment charging, in this process, the power output of energy-storage battery reduces gradually, until power output is zero, constantly being increased by the power output of bypass to charging equipment of civil power, until adopt civil power to be charging equipment charging completely, the margin power P of civil power
rneed to keep being not less than 10% of rated power P always.
As shown in Figure 5, the method for controlling the operation of photovoltaic energy storage charging pile provided by the invention is further comprising the steps of:
S201: control described photovoltaic energy storage charging pile and enter the second pattern.
In the present embodiment, server can also control photovoltaic energy storage charging pile and enter the second pattern, and this second pattern is day inter mode, and photovoltaic can work when non-rainy weather, and solar radiation can be converted into electric energy.
S202: if photovoltaic work, adopts photovoltaic to be the charging of described energy-storage battery.
Under the second mode, if photovoltaic can work, it is energy-storage battery charging that server can control photovoltaic energy storage charging pile unlatching photovoltaic maximum power to photovoltaic energy storage charging pile.
S203: if the underfill of energy-storage battery electricity, adopts civil power to be charging equipment charging, if energy-storage battery electricity is full of, adopts photovoltaic to be charging equipment charging.
In the present embodiment, if the underfill of energy-storage battery electricity, when there being charging equipment to need charging, adopting civil power to be charging equipment charging by bypass, if energy-storage battery electricity is full of by photovoltaic, then photovoltaic can be adopted to be charging equipment charging.Photovoltaic energy storage charging pile does not adopt energy-storage battery to carry out the charging of charging equipment under the second mode, decreases the service time of this energy-storage battery, extends its useful life.The supplementary electricity of photovoltaic maximum power saves civil power, even when photovoltaic generation is abundant, part photovoltaic generation is fed back to civil power.
As shown in Figure 6, after step S201, the method run for controlling photovoltaic energy storage charging pile also comprises:
S204: adopt civil power to be respectively described energy-storage battery and the charging of described charging equipment.
Photovoltaic energy storage charging pile under the second mode, if when rainy weather photovoltaic can not work, server can adopt civil power to be energy-storage battery charging, ensure that energy-storage battery can prepare to deal with peak times of power consumption at any time, when there being charging equipment to need charging, also adopt civil power for the charging of this charging equipment.
Referring to Fig. 7, is the overall flow schematic diagram for controlling the method that photovoltaic energy storage charging pile runs that embodiment provides.In the flrst mode, the main energy-storage battery that adopts charges to charging equipment photovoltaic energy storage charging pile, and what ensure civil power maintains a stable and value that absolute value is very little, to reduce the impact to civil power to the input power of photovoltaic energy storage charging pile; Photovoltaic energy storage charging pile under the second mode, does not use the electricity of energy-storage battery and the power output of less energy-storage battery to greatest extent, to greatest extent to extend its useful life.
Embodiment 2
As shown in Figure 8, provided by the invention for controlling the system that photovoltaic energy storage charging pile runs, comprise control unit 11, charhing unit 12 and adjustment unit 13.
Control unit 11 enters first mode for controlling photovoltaic energy storage charging pile.
In the present embodiment, control unit 11 controls photovoltaic energy storage charging pile and enters first mode, and this first mode is Night, photovoltaic does not work, and cannot export energy, and civil power is in peak times of power consumption, in this period, the power that residential electricity consumption etc. take is higher, makes other power P
capproximate rated power P.
Charhing unit 12 charges to charging equipment for adopting the energy-storage battery in described photovoltaic energy storage charging pile.
In the flrst mode, if there is charging equipment to need charging, charhing unit 12 preferentially adopts energy-storage battery to be charged to charging equipment by inverter to photovoltaic energy storage charging pile.In this mode, utility grid is in peak times of power consumption, and the power that residential electricity consumption etc. take is higher, adopts energy-storage battery to charge to charging equipment, reduces the impact to electrical network, ensure that the stability of utility grid.
Adjustment unit 13 is for adjusting the power output variable quantity of the described energy-storage battery charged.
Power output variable quantity can be the increase of power output or the reduction of power output, after the power output of energy-storage battery changes, the power output of civil power to energy-storage battery can be adopted to adjust.Usually, energy-storage battery is carrying out in charging process to charging equipment, along with the prolongation in charging interval, its power output can reduce because of the consumption of electricity, adjustment unit 13 can control civil power and carry out supplementing of electricity to this energy-storage battery, prevent the deep discharge of energy-storage battery, and the useful life of energy-storage battery is had an impact.
Preferably, as shown in Figure 9, the system run for controlling photovoltaic energy storage charging pile provided by the invention also comprises acquiring unit 14 and computing unit 15.
Acquiring unit 14 is for the realtime power obtaining each described photovoltaic energy storage charging pile charged, the number of described photovoltaic energy storage charging pile of charging, and the rated power of network system and use power.
Computing unit 15 is for calculating margin power and other power of described civil power by described rated power, described use power, described number and described realtime power, and the power output variable quantity of the described energy-storage battery charged according to described margin power and other power calculation.
The rated power P that computing unit 15 is got by acquiring unit 14, use power P
y, the number n of described photovoltaic energy storage charging pile that charges, and realtime power P
o1, P
o2p
on, carry out following calculating:
1, realtime power P
o
In the present embodiment, utility grid is in peak times of power consumption, other power P
ccan fixed value be considered as within a period of time, directly calculate, other power: P
c=P
y-P
z=P
y-(P
o1+ P
o2+ ... + P
on).Use power P
yfor the instantaneous value that can survey, all using the concurrent working of photovoltaic energy storage charging pile time power sum P
zwith use power P
yproportional: P
z=P
o1+ P
o2+ ... + P
on=P
y-P
c.
Acquiring unit 14 can by the use power P of detection of grid
ycalculate the average realtime power of the photovoltaic energy storage charging pile worked, P
o=(P
y-P
c)/n.
The realtime power P of computing unit 15 pairs of photovoltaic energy storage charging piles
ocalculating be to prevent the large multiplying power of energy-storage battery from using electric energy, as this realtime power P
onumerical value when reaching 80% of energy-storage battery rated power, server can reduce the power output of energy-storage battery inverter, is auxiliaryly charged to charging equipment by bypass with electrical network.
2, margin power P
r
Margin power: P
r=P-P
y.Wherein, P is the rated power of electrical network, is fixed value, margin power P
rwith use power P
yinversely, in other power P
cwhen for fixed value, margin power P
rrecruitment be the power output reduction of the energy-storage battery of each photovoltaic energy storage charging pile worked; On the contrary, margin power P
rreduction be the power output recruitment of the energy-storage battery of each photovoltaic energy storage charging pile worked: P
j=P
r/ n=(P-P
y)/n, adjustment unit 13 controls the power output variable quantity P that electrical network will calculate again
jenergy-storage battery is carried out to the adjustment of electricity.
When other power P
cclose to or when being greater than rated power P, by margin power P
rcalculating and the adjustment of adjustment unit 13 pairs of electrical networks, the effect of stable electrical network can be played.
3, the power output P of energy-storage battery
b
As shown in Figure 1, the power output P of single photovoltaic energy storage charging pile
bwith the power P of photovoltaic
v, charging gun power P
qwith the power P of civil power
srelevant, in the idle situation of photovoltaic: P
b=P
q-P
s-P
j=P
q-P
s-(P-P
y)/n.
Computing unit 15 is by calculating the power output variable quantity P of the energy-storage battery of photovoltaic energy storage charging pile
j, and monitor the power output P of photovoltaic energy storage charging pile energy-storage battery in real time
b, prevent energy-storage battery deep discharge, to damage its useful life, usually, battery remaining power is less than 20% of rated capacity, then can be considered deep discharge.
In the present embodiment, in order to ensure the stability of network system, the margin power P of civil power
rshould be enough large, can not lower than 10% of rated power P.The running of whole system is the process of an adjustment in real time, therefore will maintain a dynamic equilibrium, that is to say the power output variable quantity P of photovoltaic energy storage charging pile
jneed the timely adjustment obtaining electrical network.
Further, as shown in Figure 9, the system run for controlling photovoltaic energy storage charging pile also comprises substituting unit 16.
Substituting unit 16 replaces described photovoltaic energy storage charging pile to be charging equipment charging for adopting civil power.
After the peak times of power consumption of civil power are spent, that is to say other power P
cduring reduction, substituting unit 16 can also adopt civil power to replace described photovoltaic energy storage charging pile to be charging equipment charging, in this process, the power output of energy-storage battery reduces gradually, until power output is zero, constantly being increased by the power output of bypass to charging equipment of civil power, until adopt civil power to be charging equipment charging completely, the margin power P of civil power
rneed to keep being not less than 10% of rated power P always.
In system for controlling the operation of photovoltaic energy storage charging pile provided by the invention:
Control unit 11 also enters the second pattern for controlling described photovoltaic energy storage charging pile.
In the present embodiment, control unit 11 can also control photovoltaic energy storage charging pile and enter the second pattern, and this second pattern is day inter mode, and photovoltaic can work when non-rainy weather, and solar radiation can be converted into electric energy.
If photovoltaic work, charhing unit 12 is also for adopting photovoltaic to be the charging of described energy-storage battery.
Under the second mode, if photovoltaic can work, it is energy-storage battery charging that charhing unit 12 can control photovoltaic energy storage charging pile unlatching photovoltaic maximum power to photovoltaic energy storage charging pile.
If the underfill of energy-storage battery electricity, charhing unit 12, also for adopting civil power to be charging equipment charging, if energy-storage battery electricity is full of, adopts photovoltaic to be charging equipment charging.
In the present embodiment, if the underfill of energy-storage battery electricity, when there being charging equipment to need charging, adopting civil power to be charging equipment charging by bypass, if energy-storage battery electricity is full of by photovoltaic, then photovoltaic can be adopted to be charging equipment charging.Photovoltaic energy storage charging pile does not adopt energy-storage battery to carry out the charging of charging equipment under the second mode, decreases the service time of this energy-storage battery, extends its useful life.The supplementary electricity of photovoltaic maximum power saves civil power, even when photovoltaic generation is abundant, part photovoltaic generation is applied to civil power.
In system for controlling the operation of photovoltaic energy storage charging pile provided by the invention:
If photovoltaic does not work, charhing unit 12 is also for adopting civil power to be respectively described energy-storage battery and the charging of described charging equipment.
Photovoltaic energy storage charging pile under the second mode, if when rainy weather photovoltaic can not work, charhing unit 12 can also adopt civil power to be energy-storage battery charging, ensure that energy-storage battery can prepare to deal with peak times of power consumption at any time, when there being charging equipment to need charging, also adopt civil power for the charging of this charging equipment.
In the present embodiment, photovoltaic energy storage charging pile in the flrst mode, main employing energy-storage battery charges to charging equipment, and what ensure civil power maintains a stable and value that absolute value is very little, to reduce the impact to civil power to the input power of photovoltaic energy storage charging pile; Photovoltaic energy storage charging pile under the second mode, does not use the electricity of energy-storage battery and the power output of less energy-storage battery to greatest extent, to greatest extent to extend its useful life.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1., for controlling the method that photovoltaic energy storage charging pile runs, it is characterized in that, comprise:
Control photovoltaic energy storage charging pile and enter first mode;
The energy-storage battery in described photovoltaic energy storage charging pile is adopted to charge to charging equipment;
Adjust the power output variable quantity of the described energy-storage battery charged.
2., as claimed in claim 1 for controlling the method that photovoltaic energy storage charging pile runs, it is characterized in that, before adjusting the step of the power output variable quantity of the described energy-storage battery charged, described method also comprises:
The realtime power obtaining each described photovoltaic energy storage charging pile charged, the number of described photovoltaic energy storage charging pile of charging, and the rated power of electrical network and use power;
Margin power and other power of described civil power is calculated by described rated power, described use power, described number and described realtime power, and the power output variable quantity of the described energy-storage battery charged according to described margin power and other power calculation.
3., as claimed in claim 1 for controlling the method that photovoltaic energy storage charging pile runs, it is characterized in that, after adjusting the step of the power output variable quantity of the described energy-storage battery charged, described method also comprises:
Civil power is adopted to replace described photovoltaic energy storage charging pile to be charging equipment charging.
4., as claimed in claim 1 for controlling the method that photovoltaic energy storage charging pile runs, it is characterized in that, described method also comprises:
Control described photovoltaic energy storage charging pile and enter the second pattern;
If photovoltaic work, photovoltaic is adopted to be the charging of described energy-storage battery;
If the underfill of energy-storage battery electricity, adopt civil power to be charging equipment charging, if energy-storage battery electricity is full of, adopt photovoltaic to be charging equipment charging.
5. as claimed in claim 4 for controlling the method that photovoltaic energy storage charging pile runs, it is characterized in that, control after described photovoltaic energy storage charging pile enters the step of the second pattern, described method also comprises:
If photovoltaic does not work, civil power is adopted to be respectively described energy-storage battery and the charging of described charging equipment.
6., for controlling the system that photovoltaic energy storage charging pile runs, it is characterized in that, comprise:
Control unit, enters first mode for controlling photovoltaic energy storage charging pile;
Charhing unit, charges to charging equipment for adopting the energy-storage battery in described photovoltaic energy storage charging pile;
Adjustment unit, for adjusting the power output variable quantity of the described energy-storage battery charged.
7., as claimed in claim 6 for controlling the system that photovoltaic energy storage charging pile runs, it is characterized in that, described system also comprises:
Acquiring unit, for the realtime power that obtains each described photovoltaic energy storage charging pile charged and the number of described photovoltaic energy storage charging pile of charging, and the rated power of network system and use power;
Computing unit, for being calculated margin power and other power of described network system by described rated power, described use power, described number and described realtime power, and the power output variable quantity of the described energy-storage battery charged according to described margin power and other power calculation.
8., as claimed in claim 6 for controlling the system that photovoltaic energy storage charging pile runs, it is characterized in that, described system also comprises:
Substituting unit: replace described photovoltaic energy storage charging pile to be charging equipment charging for adopting civil power.
9., as claimed in claim 6 for controlling the system that photovoltaic energy storage charging pile runs, it is characterized in that,
Described control unit also enters the second pattern for controlling described photovoltaic energy storage charging pile;
If photovoltaic work, described charhing unit is also for adopting photovoltaic to be the charging of described energy-storage battery;
If the underfill of energy-storage battery electricity, described charhing unit, also for adopting civil power to be charging equipment charging, if energy-storage battery electricity is full of, adopts photovoltaic to be charging equipment charging.
10., as claimed in claim 9 for controlling the system that photovoltaic energy storage charging pile runs, it is characterized in that,
If photovoltaic does not work, described charhing unit is also for adopting civil power to be respectively described energy-storage battery and the charging of described charging equipment.
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| CN110103754A (en) * | 2019-05-21 | 2019-08-09 | 深圳驿普乐氏科技有限公司 | A kind of charging pile and its output power control method adapting to weak grid occasion |
| CN112572218A (en) * | 2020-12-23 | 2021-03-30 | 尚廉智能科技(上海)有限公司 | Energy-saving energy storage charging pile |
| CN113612294A (en) * | 2021-10-11 | 2021-11-05 | 深圳市驰普科达科技有限公司 | Charging control method and system for battery cabinet with solar energy-saving system |
| CN113794216A (en) * | 2021-09-06 | 2021-12-14 | 福建时代星云科技有限公司 | Parameter configuration method and terminal of optical storage and charging system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110103754A (en) * | 2019-05-21 | 2019-08-09 | 深圳驿普乐氏科技有限公司 | A kind of charging pile and its output power control method adapting to weak grid occasion |
| CN110103754B (en) * | 2019-05-21 | 2023-12-26 | 深圳驿普乐氏科技有限公司 | Charging pile suitable for weak current network occasion and output power control method thereof |
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| CN113794216A (en) * | 2021-09-06 | 2021-12-14 | 福建时代星云科技有限公司 | Parameter configuration method and terminal of optical storage and charging system |
| CN113612294A (en) * | 2021-10-11 | 2021-11-05 | 深圳市驰普科达科技有限公司 | Charging control method and system for battery cabinet with solar energy-saving system |
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Application publication date: 20160511 |