CN103647332A - Passive equalization control system and control method used for maintaining consistency of battery pack - Google Patents
Passive equalization control system and control method used for maintaining consistency of battery pack Download PDFInfo
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- CN103647332A CN103647332A CN201310729959.4A CN201310729959A CN103647332A CN 103647332 A CN103647332 A CN 103647332A CN 201310729959 A CN201310729959 A CN 201310729959A CN 103647332 A CN103647332 A CN 103647332A
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Abstract
The invention discloses a passive equalization control system used for maintaining consistency of a battery pack. The system comprises a battery management system which is connected with the battery pack through a circuit to monitor capacity of each battery monomer in the battery pack in real time and is used for judging whether an obvious capacity difference exists or not; multiple equalization resistors which are connected in parallel with each battery monomer in the battery pack respectively, wherein each equalization resistor is connected in series with a normally open equalization switch; the battery management system is connected to each equalization switch respectively to control an on/off state of each equalization switch; when the difference between the capacity of one battery monomer and the capacities of other battery monomers is too great, the connected equalization switches are switched off to consume the electric quantity of the battery monomer. According to the invention, the electric quantity of the battery monomer with too high capacity is consumed by detecting the voltage of battery monomers in the battery pack and judging whether the difference between the capacity of the battery monomer and the capacities of the other battery monomers is too great, so that passive equalization control is realized, and system consistency of the battery pack is maintained.
Description
Technical field
The present invention relates to lithium battery and the system manufacturing technology in vehicle-mounted and energy storage field, be specifically related to a kind of for the conforming passive balance control system of battery maintenance group and control method.
Background technology
Dynamic lithium battery group system is just progressively applied in the fields such as electric automobile, large-scale energy-storage system.But battery in the later in groups life-span but well below life-span of cell, be mainly difference due to cell manufacturing process, self discharge difference, density of electrolyte and in groups after the difference such as the temperature of battery and ventilation condition, make lithium battery group discharge and recharge imbalance.This has further caused partial monosomy battery impaired, enters vicious circle.Therefore balancing technique is raising battery capacity, prolongation battery pack life-span to have played key effect in the practical application of lithium battery group.
Summary of the invention
The invention provides a kind of for the conforming passive balance control system of battery maintenance group and control method, thereby monomer battery voltage is detected each cell capacity volume variance in assessment battery pack in lithium battery group charging process, the passive balanced way of employing resistance power consumption is the higher electric quantity of single batteries of contents of decrement effectively, battery maintenance group system consistency.
For achieving the above object, the invention provides and a kind ofly for the conforming passive balance control system of battery maintenance group, be characterized in, this system comprises:
Battery management system, its circuit connects the capacity of each battery cell in battery pack Real-Time Monitoring battery pack, and has judged whether obvious capacity volume variance;
Some equalizing resistances, its respectively with described battery pack in each battery cell be connected in parallel; Each equalizing resistance is in series with the equalizer switch of often opening;
Described battery management system connects respectively each equalizer switch, controls the switching of equalizer switch, and excessive when a certain battery cell capacity and other battery cell capacity difference, its equalizer switch connecting of closure, consumes this battery cell electric weight.
Above-mentioned battery management system also circuit is connected with hygrosensor, surveys respectively the temperature of each balancing battery, and excess Temperature when equalizing resistance carries out equilibrium control, disconnects this equalizing resistance.
In above-mentioned battery pack, each battery cell is connected in series.
The above-mentioned control method for the conforming passive balance control system of battery maintenance group, is characterized in, the method includes the steps of:
When step 1, battery pack are charged, battery management system detects the magnitude of voltage of all battery cells in battery pack in real time;
Step 2, battery management system judge that in battery pack, whether to have the capacity of battery cell to compare with other battery cell capacity too high, if so, jump to step 3, if not, jump to step 1;
It is closed that step 3, battery management system are controlled the equalizer switch that the too high battery cell of this capacity is corresponding;
The electric weight of the battery cell that step 4, equalizing resistance contents of decrement are too high, reaches unanimity the capacity of this battery cell and other battery cells;
Step 5, battery management system judge that whether the capacity of battery in battery pack monomer maintains an equal level, if jump to step 6, if not, jumps to step 4;
Step 6, battery management system disconnect equalizer switch.
In above-mentioned steps 1, battery management system is according to the voltage that detects all battery cells in battery pack, calculates and obtains the average monomer voltage of battery pack, high monomer voltage and minimum monomer voltage.
In above-mentioned steps 2, by judging whether the high monomer voltage of battery pack and the difference of minimum monomer voltage are greater than default voltage difference threshold value, determine whether that the capacity of battery cell compares too high with other battery cell capacity.
In above-mentioned steps 4, the temperature of the equalizing resistance in battery management system real-time detection access battery pack, and judge that whether this temperature is higher than the first default temperature threshold, if, disconnect this equalizing resistance, until the temperature of equalizing resistance lower than Second Threshold temperature again by equalizing resistance connecting single batteries, if not, proceed equalization operation.
Above-mentioned first threshold temperature is 70 degrees Celsius, and Second Threshold temperature is 65 degrees Celsius.
In above-mentioned steps 5, by judging whether the high monomer voltage of battery pack and the difference of minimum monomer voltage are less than default voltage difference threshold value, decide the capacity of battery in battery pack monomer whether to maintain an equal level.
Above-mentioned voltage difference threshold value is 10 millivolts.
The present invention compares for the battery boosting technology of the conforming passive balance control system of battery maintenance group and control method and prior art, its advantage is, the present invention is by detecting battery in battery pack monomer voltage, the capacity and other battery cell capacity difference that judge whether battery cell are excessive, so that the electric weight of the excessive battery cell of this capacity is consumed, realize passive balanced control, battery maintenance group system consistency;
The present invention detects the temperature value of equalizing resistance, when excess Temperature, stops electric quantity consumption, guarantees the work safety of system.
Accompanying drawing explanation
Fig. 1 is that the present invention is for the circuit diagram of the conforming passive balance control system of battery maintenance group;
Fig. 2 is that the present invention is for the flow chart of the control method of the conforming passive balance control system of battery maintenance group
Fig. 3 is that the present invention is for the schematic diagram of the control method of the conforming passive balance control system of battery maintenance group;
Fig. 4 is that the present invention is for the battery cell change in voltage table of the control method of the conforming passive balance control system of battery maintenance group;
Fig. 5 is that the present invention is for the variations in temperature table of the control method equalizing resistance of the conforming passive balance control system of battery maintenance group.
Embodiment
Below in conjunction with accompanying drawing, further illustrate specific embodiments of the invention.
The present invention discloses a kind of for the conforming passive balance control system of battery maintenance group, and this system comprises: battery management system, some and battery cell one to one equalizing resistance and with each equalizing resistance equalizer switch one to one.
Battery management system (BMS) circuit connects battery pack, the capacity of each battery cell in Real-Time Monitoring battery pack, and judge in battery pack, between each battery cell, whether there is obvious capacity volume variance.
Some equalizing resistances respectively with battery pack in each battery cell be connected in parallel, for consume the electric weight of corresponding battery cell when carrying out passive balanced control.
Each equalizing resistance is in series with an equalizer switch of often opening; This equalizer switch respectively circuit connects battery management system, battery management system is controlled the switching of equalizer switch, when a certain battery cell capacity and other battery cell capacity difference excessive, closed its equalizer switch connecting, consumes this battery cell electric weight by equalizing resistance.
As shown in Figure 1, be the connection layout of passive balance control system and battery pack, in battery pack, be in series with n battery cell (B
1, B
2b
n).Battery cell B
1on be connected in parallel to equalizing resistance R
1, this equalizing resistance R
1be connected in series with equalizer switch S
1; Same battery cell B
2on be connected in parallel to equalizing resistance R
2, this equalizing resistance R
2be connected in series with equalizer switch S
2; Battery cell B
non be connected in parallel to equalizing resistance R
n, this equalizing resistance R
nbe connected in series with equalizer switch S
n.
When battery pack is charged, by battery management system (BMS), cell capacity in module is assessed, when evaluating n cell B
ncapacity when higher, the closed corresponding equalizer switch S of battery management system
n.As equalizer switch S
nafter closure, R
nstart consuming cells monomers B
nelectric weight, make battery cell B
ncapacity reaches unanimity with other monomers gradually, reaches the conforming object of battery maintenance group system.
Battery management system also circuit is connected with hygrosensor, survey respectively the temperature of each balancing battery, excess Temperature when equalizing resistance carries out equilibrium control, by equalizer switch, disconnect this equalizing resistance, stop balanced control, after reducing, the temperature of equalizing resistance reconnects again battery cell, the electric weight of consuming cells monomer.
As described in Figure 2, the present invention also discloses a kind of control method for the conforming passive balance control system of battery maintenance group, and the method includes the steps of:
When step 1, battery pack are carried out trickle charge, battery management system detects the magnitude of voltage of all battery cells in battery pack.Battery management system according to the voltage that detects all battery cells in battery pack, calculates and obtains the average monomer voltage Vmean of battery pack, high monomer voltage Vmax and minimum monomer voltage Vmin.
Whether step 2, battery management system judge has the capacity of battery cell to compare too high with other battery cell capacity in battery pack, in the present invention, judgment mode is: calculate the voltage difference Vmax-Vmin between high monomer voltage Vmax and minimum monomer voltage Vmin, and judge whether to be greater than a voltage difference threshold value, in the present embodiment, this voltage difference threshold value value is 10 millivolts, and this value need be according to the battery electrical property characteristic configuration of using.If voltage difference Vmax-Vmin is greater than 10 millivolts, jump to step 3, if not, voltage difference Vmax-Vmin is less than or equal to 10 millivolts, jumps to step 1, continues to detect battery cell voltage.
It is closed that step 3, battery management system are controlled the equalizer switch that the too high battery cell of this capacity (being the battery cell that monomer voltage is the highest) is corresponding.
Step 4, the battery cell that monomer voltage is the highest equalizing resistance in parallel consume the electric weight of this battery cell, make the volume lowering of this battery cell, and reach unanimity with other battery cells gradually.
As shown in Figure 3, in the charging starting stage, No. one, No. two, No. four, the electric weight of No.5 cell monomer are higher, and the electric weight of No. three battery cells is less.Second stage No. one, No. two, No. four, No.5 cell monomer connect equalizing resistance and start to consume No. one, No. two, No. four, the electric weight of No.5 cell monomer, and No. three battery cells continue charging.Phase III, No. two, the electric weight of No.5 cell monomer and the electric weight of No. three battery cells maintain an equal level and stop equalization operation, and No. one, No. four battery cell continues in charging by equalizing resistance consumes power.The electric weight of each battery cell of final stage is full of and substantially all maintains an equal level.
As shown in Figure 4, when equalization operation does not start, the voltage climbing speed of battery cell is very fast, and the rate reduction that starts the rising of battery cell voltage when equilibrium slows down.
Step 5, battery management system judge whether the capacity of battery in battery pack monomer maintains an equal level, battery management system detects the electric weight of battery in battery pack monomer in real time, and judge whether the voltage difference Vmax-Vmin between high monomer voltage Vmax and minimum monomer voltage Vmin is less than or equal to voltage difference threshold value, threshold value can be 10 millivolts, if jump to step 6, if not, jump to step 4 and proceed equalization operation.
Step 6, battery management system disconnect equalizer switch, stop equalization operation.
As shown in Figure 5, in above-mentioned steps 4, battery management system is surveyed the temperature of each equalizing resistance in access battery pack in real time by hygrosensor, and the temperature of equalizing resistance that judges whether just to carry out equalization operation is higher than the first default temperature threshold, if so, disconnects this equalizing resistance, and lasting its problem that detects, until the temperature of this equalizing resistance lower than Second Threshold temperature again by equalizing resistance connecting single batteries, if not, proceed equalization operation.
Wherein, first threshold temperature is higher than Second Threshold temperature.Preferably, first threshold temperature is taken as 70 degrees Celsius, and Second Threshold temperature is taken as 65 degrees Celsius.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. for the conforming passive balance control system of battery maintenance group, it is characterized in that, this system comprises:
Battery management system, its circuit connects the capacity of each battery cell in battery pack Real-Time Monitoring battery pack, and has judged whether obvious capacity volume variance;
Some equalizing resistances, its respectively with described battery pack in each battery cell be connected in parallel; Each equalizing resistance is in series with the equalizer switch of often opening;
Described battery management system connects respectively each equalizer switch, controls the switching of equalizer switch, and excessive when a certain battery cell capacity and other battery cell capacity difference, its equalizer switch connecting of closure, consumes this battery cell electric weight.
2. as claimed in claim 1 for the conforming passive balance control system of battery maintenance group, it is characterized in that, described battery management system also circuit is connected with hygrosensor, survey respectively the temperature of each balancing battery, excess Temperature when equalizing resistance carries out equilibrium control, disconnects this equalizing resistance.
3. as claimed in claim 1ly for the conforming passive balance control system of battery maintenance group, it is characterized in that, in described battery pack, each battery cell is connected in series.
4. the control method for the conforming passive balance control system of battery maintenance group as described in any one in claims 1 to 3, is characterized in that, the method includes the steps of:
When step 1, battery pack are charged, battery management system detects the magnitude of voltage of all battery cells in battery pack in real time;
Step 2, battery management system judge that in battery pack, whether to have the capacity of battery cell to compare with other battery cell capacity too high, if so, jump to step 3, if not, jump to step 1;
It is closed that step 3, battery management system are controlled the equalizer switch that the too high battery cell of this capacity is corresponding;
The electric weight of the battery cell that step 4, equalizing resistance contents of decrement are too high, reaches unanimity the capacity of this battery cell and other battery cells;
Step 5, battery management system judge that whether the capacity of battery in battery pack monomer maintains an equal level, if jump to step 6, if not, jumps to step 4;
Step 6, battery management system disconnect equalizer switch.
5. the control method for the conforming passive balance control system of battery maintenance group as claimed in claim 4, it is characterized in that, in described step 1, battery management system is according to the voltage that detects all battery cells in battery pack, calculates and obtains the average monomer voltage of battery pack, high monomer voltage and minimum monomer voltage.
6. the control method for the conforming passive balance control system of battery maintenance group as claimed in claim 5, it is characterized in that, in described step 2, by judging whether the high monomer voltage of battery pack and the difference of minimum monomer voltage are greater than default voltage difference threshold value, determine whether that the capacity of battery cell compares too high with other battery cell capacity.
7. the control method for the conforming passive balance control system of battery maintenance group as claimed in claim 5, it is characterized in that, in described step 4, the temperature of the equalizing resistance in battery management system real-time detection access battery pack, and judge that whether this temperature is higher than the first default temperature threshold, if, disconnect this equalizing resistance, until the temperature of equalizing resistance lower than Second Threshold temperature again by equalizing resistance connecting single batteries, if not, proceed equalization operation.
8. the control method for the conforming passive balance control system of battery maintenance group as claimed in claim 7, is characterized in that, described first threshold temperature is 70 degrees Celsius, and Second Threshold temperature is 65 degrees Celsius.
9. the control method for the conforming passive balance control system of battery maintenance group as claimed in claim 5, it is characterized in that, in described step 5, by judging whether the high monomer voltage of battery pack and the difference of minimum monomer voltage are less than default voltage difference threshold value, decide the capacity of battery in battery pack monomer whether to maintain an equal level.
10. the control method for the conforming passive balance control system of battery maintenance group as described in claim 6 or 9, is characterized in that, described voltage difference threshold value is 10 millivolts.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505912A (en) * | 2015-01-15 | 2015-04-08 | 中国科学技术大学 | Power lithium battery pack passive equalization system with temperature detection function |
| CN105206897A (en) * | 2014-06-30 | 2015-12-30 | 观致汽车有限公司 | Method and device for controlling temperature of battery pack |
| CN105762869A (en) * | 2016-03-30 | 2016-07-13 | 张家港绿锂动力技术有限公司 | Battery pack equalization control method and system |
| CN106711521A (en) * | 2016-11-16 | 2017-05-24 | 安徽锐能科技有限公司 | Balancing control method and circuit for battery pack |
| CN107276170A (en) * | 2017-07-12 | 2017-10-20 | 合肥国轩高科动力能源有限公司 | A kind of system and method for actively protecting pure electric automobile battery |
| CN107415756A (en) * | 2017-08-25 | 2017-12-01 | 北京智行鸿远汽车有限公司 | A kind of cell management system of electric automobile equalization methods based on passive balanced way |
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| CN107863796A (en) * | 2017-10-30 | 2018-03-30 | 努比亚技术有限公司 | Battery electric quantity balancing control circuit, terminal and battery electric quantity balance control method |
| CN108063293A (en) * | 2016-11-09 | 2018-05-22 | 比亚迪股份有限公司 | Battery pack balancing control method and control system |
| CN108263239A (en) * | 2018-02-08 | 2018-07-10 | 北京新能源汽车股份有限公司 | A kind of passive equalizing circuit, method for diagnosing faults and automobile |
| CN109017381A (en) * | 2018-07-31 | 2018-12-18 | 电子科技大学 | A kind of power battery pack composite balancing control method |
| CN109167409A (en) * | 2018-09-27 | 2019-01-08 | 青海盈天能源有限公司 | One kind is for battery pack series connection balanced charging method, system and equipment |
| CN109494850A (en) * | 2019-01-08 | 2019-03-19 | 奇瑞汽车股份有限公司 | Battery pack equilibrium method, apparatus and system |
| CN109698526A (en) * | 2017-10-20 | 2019-04-30 | 龙海特尔福汽车电子研究所有限公司 | A kind of safe lithium battery group balance realizing method |
| CN110034345A (en) * | 2019-01-18 | 2019-07-19 | 中北智杰科技（北京）有限公司 | Modular battery group, electric device and modular battery group management method |
| CN110600819A (en) * | 2019-09-19 | 2019-12-20 | 上海电气国轩新能源科技有限公司 | Electric quantity balance control system and method of battery system |
| CN111064261A (en) * | 2020-01-02 | 2020-04-24 | 安徽锐能科技有限公司 | Passive equalization strategy, device and storage medium considering temperature and SOH |
| CN111098758A (en) * | 2020-01-02 | 2020-05-05 | 安徽锐能科技有限公司 | Equalization method, circuit and storage medium based on SOH |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090039830A1 (en) * | 2003-11-20 | 2009-02-12 | Pellenc (Societe Anonyme) | Equilibrated charging method for a lithium-ion or lithium-polymer battery |
| CN101950995A (en) * | 2010-08-27 | 2011-01-19 | 华南师范大学 | Lithium ion power battery pack balanced discharge management system |
| CN101341643B (en) * | 2005-10-21 | 2012-04-18 | 史赛克公司 | Charger for recharging batteries exposed to harsh environments |
-
2013
- 2013-12-26 CN CN201310729959.4A patent/CN103647332B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090039830A1 (en) * | 2003-11-20 | 2009-02-12 | Pellenc (Societe Anonyme) | Equilibrated charging method for a lithium-ion or lithium-polymer battery |
| CN101341643B (en) * | 2005-10-21 | 2012-04-18 | 史赛克公司 | Charger for recharging batteries exposed to harsh environments |
| CN101950995A (en) * | 2010-08-27 | 2011-01-19 | 华南师范大学 | Lithium ion power battery pack balanced discharge management system |
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| CN105206897A (en) * | 2014-06-30 | 2015-12-30 | 观致汽车有限公司 | Method and device for controlling temperature of battery pack |
| CN105206897B (en) * | 2014-06-30 | 2017-10-10 | 观致汽车有限公司 | Apparatus and method for controlling battery pack temperature |
| CN104505912A (en) * | 2015-01-15 | 2015-04-08 | 中国科学技术大学 | Power lithium battery pack passive equalization system with temperature detection function |
| CN105762869A (en) * | 2016-03-30 | 2016-07-13 | 张家港绿锂动力技术有限公司 | Battery pack equalization control method and system |
| CN108063293B (en) * | 2016-11-09 | 2020-11-20 | 比亚迪股份有限公司 | Battery pack balance control method and control system |
| CN108063293A (en) * | 2016-11-09 | 2018-05-22 | 比亚迪股份有限公司 | Battery pack balancing control method and control system |
| CN106711521A (en) * | 2016-11-16 | 2017-05-24 | 安徽锐能科技有限公司 | Balancing control method and circuit for battery pack |
| CN106711521B (en) * | 2016-11-16 | 2019-05-07 | 安徽锐能科技有限公司 | Battery pack balancing control method and control circuit |
| CN107276170A (en) * | 2017-07-12 | 2017-10-20 | 合肥国轩高科动力能源有限公司 | A kind of system and method for actively protecting pure electric automobile battery |
| CN107444158A (en) * | 2017-08-10 | 2017-12-08 | 清华四川能源互联网研究院 | A kind of equalization methods of modular battery packet system |
| CN107415756A (en) * | 2017-08-25 | 2017-12-01 | 北京智行鸿远汽车有限公司 | A kind of cell management system of electric automobile equalization methods based on passive balanced way |
| CN109698526A (en) * | 2017-10-20 | 2019-04-30 | 龙海特尔福汽车电子研究所有限公司 | A kind of safe lithium battery group balance realizing method |
| CN109698526B (en) * | 2017-10-20 | 2023-03-14 | 龙海特尔福汽车电子研究所有限公司 | Safe lithium battery pack equalization implementation method |
| CN107863796A (en) * | 2017-10-30 | 2018-03-30 | 努比亚技术有限公司 | Battery electric quantity balancing control circuit, terminal and battery electric quantity balance control method |
| CN108263239A (en) * | 2018-02-08 | 2018-07-10 | 北京新能源汽车股份有限公司 | A kind of passive equalizing circuit, method for diagnosing faults and automobile |
| CN109017381A (en) * | 2018-07-31 | 2018-12-18 | 电子科技大学 | A kind of power battery pack composite balancing control method |
| CN109017381B (en) * | 2018-07-31 | 2021-09-24 | 电子科技大学 | Composite balance control method for power battery pack |
| CN109167409A (en) * | 2018-09-27 | 2019-01-08 | 青海盈天能源有限公司 | One kind is for battery pack series connection balanced charging method, system and equipment |
| CN109494850A (en) * | 2019-01-08 | 2019-03-19 | 奇瑞汽车股份有限公司 | Battery pack equilibrium method, apparatus and system |
| CN109494850B (en) * | 2019-01-08 | 2022-05-03 | 奇瑞汽车股份有限公司 | Battery pack balancing method, device and system |
| CN110034345A (en) * | 2019-01-18 | 2019-07-19 | 中北智杰科技（北京）有限公司 | Modular battery group, electric device and modular battery group management method |
| CN110600819B (en) * | 2019-09-19 | 2022-08-05 | 上海电气国轩新能源科技有限公司 | Electric quantity balance control system and method of battery system |
| CN110600819A (en) * | 2019-09-19 | 2019-12-20 | 上海电气国轩新能源科技有限公司 | Electric quantity balance control system and method of battery system |
| CN111098758A (en) * | 2020-01-02 | 2020-05-05 | 安徽锐能科技有限公司 | Equalization method, circuit and storage medium based on SOH |
| CN111064261A (en) * | 2020-01-02 | 2020-04-24 | 安徽锐能科技有限公司 | Passive equalization strategy, device and storage medium considering temperature and SOH |
| CN111064261B (en) * | 2020-01-02 | 2024-01-12 | 安徽锐能科技有限公司 | Passive equalization strategy, device and storage medium considering temperature and SOH |
| WO2022143624A1 (en) * | 2020-12-28 | 2022-07-07 | 中国第一汽车股份有限公司 | Battery management system and method, vehicle and storage medium |
| CN114844161A (en) * | 2022-05-18 | 2022-08-02 | 北京劢亚科技有限公司 | Battery equalization device and method applied to satellite |
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