CN101414756A - Accumulator charging control method for solar battery - Google Patents
Accumulator charging control method for solar battery Download PDFInfo
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- CN101414756A CN101414756A CNA2008102174712A CN200810217471A CN101414756A CN 101414756 A CN101414756 A CN 101414756A CN A2008102174712 A CNA2008102174712 A CN A2008102174712A CN 200810217471 A CN200810217471 A CN 200810217471A CN 101414756 A CN101414756 A CN 101414756A
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Abstract
The present invention relates to a solar storage battery charging control method. The method comprises the following steps: S1. starting a storage battery to enter the even charging state and putting into a solar battery matrix; S2. determining whether the bus pressure of a solar controller is more than the even charging upper limit or not, if yes, cutting one circuit of the solar battery matrix and implementing the step S3; otherwise, keeping the solar battery matrix and repeating the step S2; S3. determining whether the solar battery matrix is cut off or not, if yes, entering the floating charge state; otherwise, implementing the step S4; S4. determining whether the bus pressure of the solar controller is less than the even charging medium value or not, if yes, putting into one circuit of solar battery matrix and implementing the step S2; otherwise, directly implementing the step S2. The solar storage battery charging control method for various storage batteries can keep the stability of charging current, improve the utilization rate of solar energy and avoid overcharging or overcurrent and other situations.
Description
Technical field
The present invention relates to solar cell, more particularly, relate to a kind of accumulator charging control method of solar cell
Background technology
Along with the mankind's continuous development, energy resource consumption is increasing, and entire society has turned to more attention the exploitation of new forms of energy.Solar cell is exactly one of present exploitation focus.Because solar cell often can only just can provide electric energy under illumination condition, and exist the photoelectric conversion plate light-receiving area little, photoelectric conversion efficiency is not high, the often unsettled defective of light intensity, thereby be generally and adopt a large amount of solar cell arrays that storage battery is charged, power to the load by storage battery again.Therefore, adopt more excellent method control solar cell concerning the charging of storage battery for the solar cell system, seem particularly important.
Accumulator charging control method of the prior art, generally fill by being provided with all/the floating charge upper limit and all filling/the floating charge lower limit controls the switching of solar cell array, just when the busbar voltage of controller for solar greater than all fill/floating charge in limited time, cut off each road solar cell array, when busbar voltage less than all fill/floating charge down in limited time, each road solar cell is connected.Like this busbar voltage greater than all fill/floating charge in limited time, cut off whole solar cell arrays simply, it is saturated to make that storage battery does not really obtain, and causes solar energy utilization ratio to descend.In addition, because the switching of solar cell array may need the time, and under the influence that the size and the battery capacity of the input current of single channel solar cell array changes, in charging process, occur easily overcharging or charging current excessive, the life-span that so all can damage storage battery.
Therefore, need a kind of accumulator charging control method of solar cell, can keep charging current stability, improve solar energy utilization rate, can prevent and overcharge or situation such as charging current is excessive.
Summary of the invention
The technical problem to be solved in the present invention is, at lower, the unsettled defective of charging current of solar energy utilization ratio of the accumulator charging control method of the solar cell of prior art, a kind of stability that can keep charging current is provided, improves the accumulator charging control method of the solar cell of solar energy utilization rate.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of accumulator charging control method of solar cell, comprise the following steps:
S1, startup storage battery enter the state that all fills, and drop into solar cell array;
Whether the busbar voltage of S2, judgement controller for solar is greater than all filling limit with, if then cut off No. one solar cell array and execution in step S3; Otherwise the solar cell array and the repeated execution of steps S2 that keep input;
S3, judge whether all solar cell arrays all are cut off, if then enter floating charge state, otherwise execution in step S4;
S4, judge controller for solar busbar voltage whether less than all filling intermediate value, if then drop into No. one solar cell array and execution in step S2, otherwise direct execution in step S2.
In the accumulator charging control method of solar cell of the present invention, in described step S1, the input of described solar cell array all is to drop into by the road by the time interval of setting.
In the accumulator charging control method of solar cell of the present invention, in described step S2, if the busbar voltage of judging described controller for solar is then further carried out following steps greater than all filling limit with:
S21, judge described controller for solar busbar voltage whether less than all filling the over-charge protective value, if then cut off No. one solar cell array and execution in step S3, otherwise execution in step S22;
Whether the busbar voltage of S22, the described controller for solar of judgement warns point less than overvoltage, if then only keeping No. one solar cell array is input state and execution in step S3, otherwise execution in step S23;
Whether the busbar voltage of S23, the described controller for solar of judgement is less than the overpressure treatment point, if, then directly cut off all solar cell arrays, carry out overvoltage warning delay process and execution in step S3, otherwise unconditionally cut off all solar cell arrays immediately and carry out the overvoltage warning.
In the accumulator charging control method of solar cell of the present invention, in above-mentioned arbitrary main flow step, include following step:
Whether S111, judgement charge total current greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112;
The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113;
S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from and allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array execution in step S114 again otherwise drop into;
S114, turn back to above-mentioned arbitrary main flow step.
The present invention solves the another technical scheme that its technical problem adopts: the accumulator charging control method of second kind of solar cell of structure comprises the following steps:
S1, startup storage battery enter floating charge state;
S2, judge controller for solar busbar voltage whether less than the floating charge intermediate value, if execution in step S3 then, otherwise execution in step S4;
S3, judge controller for solar whether busbar voltage whether less than changeing even charging voltage, all fill state if then enter, otherwise execution in step S2;
S4, judge controller for solar busbar voltage whether greater than the floating charge upper limit, if cut off No. one solar cell array and execution in step S2, otherwise keep the solar cell array and the repeated execution of steps S4 that drop into.
In the accumulator charging control method of second kind of solar cell of the present invention, in described step S3, the input of solar cell array all is to drop into by the road by the time interval of setting.
In the accumulator charging control method of second kind of solar cell of the present invention, in described step S4, if the busbar voltage of judging described controller for solar is then further carried out following steps greater than the floating charge upper limit:
S41, judge described controller for solar busbar voltage whether less than floating charge over-charge protective value, if then cut off No. one solar cell array and execution in step S2, otherwise execution in step S42;
S42, judge described controller for solar busbar voltage whether less than all filling lower limit, if then only keeping No. one solar cell array is the input state, and execution in step S2, otherwise execution in step S43;
S43, judge described controller for solar busbar voltage whether greater than all filling lower-limit point, if then directly cut off all solar cell arrays, and execution in step S2, otherwise execution in step S44;
Whether the busbar voltage of S44, the described controller for solar of judgement is greater than the overpressure treatment point, if then unconditionally cut off all solar cell arrays immediately and carry out the overvoltage warning.
In the accumulator charging control method of second kind of solar cell of the present invention, in above-mentioned arbitrary main flow step, include following step:
Whether S111, judgement charge total current greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112;
The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113;
S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from, allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array at execution in step S114 otherwise drop into;
S114, turn back to above-mentioned arbitrary main flow step.
The present invention solves another technical scheme that its technical problem adopts: construct the accumulator charging control method of the third solar cell, comprise the following steps:
S1, startup storage battery enter the state that all fills, and drop into solar cell array;
Whether the busbar voltage of S2, judgement controller for solar is greater than all filling limit with, if then cut off No. one solar cell array and execution in step S3; Otherwise the solar cell array and the repeated execution of steps S2 that keep input;
S3, judge whether all solar cell arrays all are cut off, if execution in step S5 then, otherwise execution in step S4;
S4, judge controller for solar busbar voltage whether less than all filling intermediate value, if then drop into No. one solar cell array and execution in step S2, otherwise direct execution in step S2;
S5, startup storage battery enter floating charge state;
S6, judge controller for solar busbar voltage whether less than the floating charge intermediate value, if execution in step S7 then, otherwise execution in step S8;
S7, judge controller for solar busbar voltage whether less than changeing even charging voltage, if execution in step S1 then, otherwise drop into No. one solar cell array, and execution in step S6;
S8, judge controller for solar busbar voltage whether greater than the floating charge upper limit, if cut off No. one solar cell array and execution in step S6, otherwise keep the solar cell array and the repeated execution of steps S8 that drop into.
In the accumulator charging control method of the third solar cell of the present invention, in above-mentioned steps S1-8, include following step:
Whether S111, judgement charge total current greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112;
The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113;
S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from, allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array at execution in step S114 otherwise drop into;
S114, turn back to above-mentioned arbitrary main flow step S1-8.
Implement the accumulator charging control method of various solar cells of the present invention, can keep charging current stability, improve solar energy utilization rate, can prevent and overcharge or situation such as charging current is excessive.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of solar cell system;
Fig. 2 is the flow chart of the accumulator charging control method of first kind of solar cell of the present invention;
Fig. 3 is the flow chart of the accumulator charging control method of second kind of solar cell of the present invention;
Fig. 4 is the flow chart of the accumulator charging control method of the third solar cell of the present invention;
Fig. 5 is the flow chart of first embodiment of the accumulator charging control method of the third solar cell of the present invention;
Fig. 6 is the flow chart of over-charge protective step of the accumulator charging control method of first kind of solar cell of the present invention;
Fig. 7 is the flow chart of over-charge protective step of the accumulator charging control method of second kind of solar cell of the present invention;
Fig. 8 is the flow chart of the excessive protection step of charging current of the accumulator charging control method of solar cell of the present invention.
Embodiment
Fig. 1 is the structural representation of solar cell system.In the present invention, mainly adopt No. 4 solar cell arrays shown in Fig. 1 that the accumulator charging control method of solar cell of the present invention is described.Accumulator charging control method at solar cell of the present invention.Those skilled in the art know that the solar cell system among Fig. 1 only is to be used to illustrate accumulator charging control method of the present invention, and unrestricted method of the present invention only can be used for the solar cell system of this kind structure.
Fig. 2 is the flow chart of the accumulator charging control method of first kind of solar cell of the present invention, and this method is used for the state that all fills of storage battery, and it reduces switching frequency and improve solar energy utilization ratio by having introduced the intermediate value judgement.As shown in Figure 2, this method comprises: S1, startup storage battery enter the state that all fills, and drop into solar cell array; Whether the busbar voltage of S2, judgement controller for solar is greater than all filling limit with, if then cut off No. one solar cell array and execution in step S3; Otherwise the solar cell array and the repeated execution of steps S2 that keep input; S3, judge whether all solar cell arrays all are cut off, if then enter floating charge state, otherwise execution in step S4; S4, judge controller for solar busbar voltage whether less than all filling intermediate value, if then drop into No. one solar cell array and execution in step S2, otherwise direct execution in step S2.In described step S1, the input of described solar cell array all is to drop into by the road by the time interval of setting.
In the method shown in Fig. 2, all fill lower limit with and be provided with according to the characteristic of buying storage battery by the user, all fill intermediate value and be exactly and all fill or the mean value of bound.The employing intermediate value is judged, can reduce switching frequency, reduces switching loss, keeps the certain stationarity of charging current, improves solar energy utilization rate.For instance, do not adopt the intermediate value of all filling of the present invention as the switching point, promptly when the switching point is arranged on all fill with the limit and intermediate value between the time, be limited to 57V as all filling with, under when being limited to 55V, intermediate value is 56V, as switching point is 56.5V, and then voltage is raised to 57V and cuts off No. one solar cell array, owing to be the minimizing of the solar cell array of charge in batteries, the busbar voltage that controller for solar may occur descends, when dropping to 56.5V, need to drop into No. one solar cell array again, busbar voltage rises again thereupon, (56V) came manyly when so repeatedly repeatedly, its switching times can be intermediate value than switching point naturally.If when the switching point was arranged on intermediate value language and all fills between the lower limit, switching frequency had lacked, but the solar recharging time reduce, influence solar energy utilization ratio.And all fill intermediate value often the best of corresponding storage battery all fill a little, so be judgment value with it, group switch switching frequency and solar energy utilization ratio are a kind of preferred plan.
Fig. 3 is the flow chart of the accumulator charging control method of second kind of solar cell of the present invention, and this method is applicable to the floating charge state of storage battery, and it reduces switching frequency and improve solar energy utilization ratio by having introduced the intermediate value judgement.This method comprises that S1, startup storage battery enter floating charge state; S2, judge controller for solar busbar voltage whether less than the floating charge intermediate value, if execution in step S3 then, otherwise execution in step S4; S3, judge controller for solar whether busbar voltage whether less than changeing even charging voltage, all fill state if then enter, otherwise execution in step S2; S4, judge controller for solar busbar voltage whether greater than the floating charge upper limit, if cut off No. one solar cell array and execution in step S2, otherwise keep the solar cell array and the repeated execution of steps S4 that drop into.
In the method shown in Fig. 3, the floating charge bound is provided with according to the characteristic of buying storage battery by the user, and the floating charge intermediate value is exactly the flat floating value of floating charge or bound.The employing intermediate value is judged, can reduce switching frequency, reduces switching loss, keeps the certain stationarity of charging current, improves solar energy utilization rate.For instance, do not adopt floating charge intermediate value of the present invention as the switching point, promptly when being arranged on the switching point between the floating charge upper limit and intermediate value, as being limited to 57V in the floating charge, under when being limited to 55V, intermediate value is 56V, as switching point is 56.5V, and then voltage is raised to 57V and cuts off No. one solar cell array, owing to be the minimizing of the solar cell array of charge in batteries, the busbar voltage that controller for solar may occur descends, when dropping to 56.5V, need to drop into No. one solar cell array again, busbar voltage rises again thereupon, (56V) came manyly when so repeatedly repeatedly, its switching times can be intermediate value than switching point naturally.If when being arranged on the switching point between the intermediate value language floating charge lower limit, switching frequency has lacked, but the solar recharging time reduce, influence solar energy utilization ratio.And the floating charge intermediate value is the best floating charge point of corresponding storage battery often, so be judgment value with it, group switch switching frequency and solar energy utilization ratio are a kind of preferred plan.
Fig. 4 is the flow chart of the accumulator charging control method of the third solar cell of the present invention, its simultaneously all fill with the floating charge process in introduce intermediate value and judge, more can reduce switching frequency, reduce switching loss and also improve solar energy utilization ratio.Method comprises the following steps: that S1, startup storage battery enter the state that all fills, and drop into solar cell array as shown in Figure 4; Whether the busbar voltage of S2, judgement controller for solar is greater than all filling limit with, if then cut off No. one solar cell array and execution in step S3; Otherwise the solar cell array and the repeated execution of steps S2 that keep input; S3, judge whether all solar cell arrays all are cut off, if execution in step S5 then, otherwise execution in step S4; S4, judge controller for solar busbar voltage whether less than all filling intermediate value, if then drop into No. one solar cell array and execution in step S2, otherwise direct execution in step S2; S5, startup storage battery enter floating charge state; S6, judge controller for solar busbar voltage whether less than the floating charge intermediate value, if execution in step S7 then, otherwise execution in step S8; S7, judge controller for solar busbar voltage whether less than changeing even charging voltage, if execution in step S1 then, otherwise drop into No. one solar cell array, and execution in step S6; S8, judge controller for solar busbar voltage whether greater than the floating charge upper limit, if cut off No. one solar cell array and execution in step S6, otherwise keep the solar cell array and the repeated execution of steps S8 that drop into.
Fig. 5 is the flow chart of first embodiment of the accumulator charging control method of the third solar cell of the present invention.As shown in Figure 5, under the controller automatic mode, battery management enters the state that all fills, all solar cell arrays 1,2,3 and 4 the tunnel progressively dropped into by the switching time interval, the busbar voltage of controller for solar raises to arrive and all fills intermediate value, this moment, institute's input solar cell array kept dropping into, all fill with in limited time up to the arrival of busbar voltage, cut off the road solar cell array 4 that has dropped into, at this moment, (1) descends as busbar voltage but is not lower than when all filling intermediate value, keeps this state, (2) be lower than when all filling intermediate value when busbar voltage, drop into No. one solar cell array 4 again; (3) surpass again as busbar voltage and all fill limit with, cut off No. one solar cell array 3 again.Then repeat above-mentioned judgement, 1-4 all disconnects up to solar cell array, and enters floating charge state.After entering floating charge state, as the busbar voltage of controller for solar less than the floating charge intermediate value, drop into No. one solar cell array 1 and carry out floating charge, busbar voltage rises, if this moment is also less than the floating charge intermediate value, judge that then whether it is less than changeing even charging voltage, all fill state if then enter, if but busbar voltage is greater than the floating charge intermediate value less than changeing even charging voltage, then drop into No. one solar cell array 2 and carry out floating charge, up to busbar voltage greater than the floating charge intermediate value, if after all drop on whole solar cell array 1-4 roads, but busbar voltage still less than the floating charge intermediate value greater than changeing even charging voltage, then keeps this input state to continue floating charge.If in this process, detect busbar voltage less than changeing even charging voltage, then enter and all fill state.When busbar voltage greater than the floating charge intermediate value, less than in the floating charge in limited time, cut off that road solar cell array that has just dropped into, if busbar voltage cuts off solar cell array in order still greater than the floating charge intermediate value, all be cut off up to whole solar cell arrays.In above-mentioned cut-out and input process, all carry out intermediate value and judge, but group switch switching frequency and solar energy utilization ratio.
Since may be because square formation switching time, the size of single channel square formation input current and the influence of battery capacity when all filling with floating charge, what may occur when causing charging overcharges, and the present invention has carried out optimization process to this.Fig. 6 is the flow chart of over-charge protective step of the accumulator charging control method of first kind of solar cell of the present invention.In the step S2 of the accumulator charging control method of the solar cell shown in Fig. 2, if the busbar voltage of judging described controller for solar is greater than all filling limit with, then further carry out following steps: S21, judge that whether the busbar voltage of described controller for solar is less than all filling the over-charge protective value, if, then cut off No. one solar cell array and execution in step S3, otherwise execution in step S22; Whether the busbar voltage of S22, the described controller for solar of judgement warns point less than overvoltage, if then only keeping No. one solar cell array is input state and execution in step S3, otherwise execution in step S23; Whether the busbar voltage of S23, the described controller for solar of judgement is less than the overpressure treatment point, if, then directly cut off all solar cell arrays, carry out overvoltage warning delay process and execution in step S3, otherwise unconditionally cut off all solar cell arrays immediately and carry out the overvoltage warning.All fill state for certain; when surpassing, all do not fill with in limited time busbar voltage; undertaken by the normal flow shown in Fig. 2; when surpassing, all fills with in limited time busbar voltage; because battery condition is different and the solar cell array switching carries out at interval by certain hour, busbar voltage may all filled difference between limit and over-voltage protection point with.When it is in different judgements interval, control the switching state of solar cell array battle array by different patterns.When busbar voltage surpasses overpressure treatment point, unconditionally withdraw from all square formations, prevent that overvoltage protection from appearring in storage battery.The characteristic of different batteries is inequality, and these points also have nothing in common with each other.The storage battery of different manufacturers also has nothing in common with each other, and the storage battery that identical producer produces the same time also can be variant.Therefore, the value of all fill limit with, all filling over-charge protective value, overpressure treatment point can be set according to the kind of storage battery, in an embodiment of the present invention; all fill limit with and can be 57.6V; all fill over-charge protective value 1 and be 58.2V, overvoltage alarm point is 58.5V, and overpressure treatment point is 58.8V
Fig. 7 is the flow chart of over-charge protective step of the accumulator charging control method of second kind of solar cell of the present invention.In the step S4 of the accumulator charging control method of the solar cell shown in Fig. 3, if the busbar voltage of judging described controller for solar is greater than the floating charge upper limit, then further carry out following steps: S41, judge that whether the busbar voltage of described controller for solar is less than floating charge over-charge protective value, if, then cut off No. one solar cell array and execution in step S2, otherwise execution in step S42; S42, judge described controller for solar busbar voltage whether less than all filling lower limit, if then only keeping No. one solar cell array is the input state, and execution in step S2, otherwise execution in step S43; S43, judge described controller for solar busbar voltage whether greater than all filling lower-limit point, if then directly cut off all solar cell arrays, and execution in step S2, otherwise execution in step S44; Whether the busbar voltage of S44, the described controller for solar of judgement is greater than the overpressure treatment point, if then unconditionally cut off all solar cell arrays immediately and carry out the overvoltage warning.From the above, the present invention adopts the different disposal mode with multistage anti-overcharge processing scheme according to different situations.And the emergency classification of carrying out in various degree that overcharges handled, reduced to overcharge degree of injury to greatest extent to storage battery.Special circumstances such as simultaneously, little, the capacity of the capacity that may occur according to storage battery is full, load is little, the square formation charging current is big may cause floating charge to overcharge also having carried out corresponding anti-overcharge handling process.
Fig. 8 is the flow chart of the excessive protection step of charging current of the accumulator charging control method of solar cell of the present invention.In arbitrary step of the accumulator charging control method of the solar cell shown in Fig. 2-4, all can comprise the steps: S111, judge that whether the charging total current is greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112; The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113; S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from, allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array at execution in step S114 otherwise drop into; S114, turn back to above-mentioned arbitrary main flow step.
Implement the accumulator charging control method of various solar cells of the present invention, can keep charging current stability, improve solar energy utilization rate, can prevent and overcharge or situation such as charging current is excessive.
Though the present invention describes by specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the claim scope of the present invention.
Claims (13)
1, a kind of accumulator charging control method of solar cell is characterized in that, comprises the following steps:
S1, startup storage battery enter the state that all fills, and drop into solar cell array;
Whether the busbar voltage of S2, judgement controller for solar is greater than all filling limit with, if then cut off No. one solar cell array and execution in step S3; Otherwise the solar cell array and the repeated execution of steps S2 that keep input;
S3, judge whether all solar cell arrays all are cut off, if then enter floating charge state, otherwise execution in step S4;
S4, judge controller for solar busbar voltage whether less than all filling intermediate value, if then drop into No. one solar cell array and execution in step S2, otherwise direct execution in step S2.
2, the accumulator charging control method of solar cell according to claim 1 is characterized in that, in described step S1, the input of described solar cell array all is to drop into by the road by the time interval of setting.
3, the accumulator charging control method of solar cell according to claim 1 is characterized in that, in described step S2, if the busbar voltage of judging described controller for solar is then further carried out following steps greater than all filling limit with:
S21, judge described controller for solar busbar voltage whether less than all filling the over-charge protective value, if then cut off No. one solar cell array and execution in step S3, otherwise execution in step S22;
Whether the busbar voltage of S22, the described controller for solar of judgement warns point less than overvoltage, if then only keeping No. one solar cell array is input state and execution in step S3, otherwise execution in step S23;
Whether the busbar voltage of S23, the described controller for solar of judgement is less than the overpressure treatment point, if, then directly cut off all solar cell arrays, carry out overvoltage warning delay process and execution in step S3, otherwise unconditionally cut off all solar cell arrays immediately and carry out the overvoltage warning.
4, according to the accumulator charging control method of the described solar cell of arbitrary claim among the claim 1-3, it is characterized in that, in above-mentioned arbitrary main flow step, include following step:
Whether S111, judgement charge total current greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112;
The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113;
S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from and allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array execution in step S114 again otherwise drop into;
S114, turn back to above-mentioned arbitrary main flow step.
5, a kind of accumulator charging control method of solar cell is characterized in that, comprises the following steps:
S1, startup storage battery enter floating charge state;
S2, judge controller for solar busbar voltage whether less than the floating charge intermediate value, if execution in step S3 then, otherwise execution in step S4;
S3, judge controller for solar whether busbar voltage whether less than changeing even charging voltage, all fill state if then enter, otherwise execution in step S2;
S4, judge controller for solar busbar voltage whether greater than the floating charge upper limit, if cut off No. one solar cell array and execution in step S2, otherwise keep the solar cell array and the repeated execution of steps S4 that drop into.
6, the accumulator charging control method of solar cell according to claim 5 is characterized in that, in described step S3, the input of solar cell array all is to drop into by the road by the time interval of setting.
7, the accumulator charging control method of solar cell according to claim 6 is characterized in that, in described step S4, if the busbar voltage of judging described controller for solar is then further carried out following steps greater than the floating charge upper limit:
S41, judge described controller for solar busbar voltage whether less than floating charge over-charge protective value, if then cut off No. one solar cell array and execution in step S2, otherwise execution in step S42;
S42, judge described controller for solar busbar voltage whether less than all filling lower limit, if then only keeping No. one solar cell array is the input state, and execution in step S2, otherwise execution in step S43;
S43, judge described controller for solar busbar voltage whether greater than all filling lower-limit point, if then directly cut off all solar cell arrays, and execution in step S2, otherwise execution in step S44;
Whether the busbar voltage of S44, the described controller for solar of judgement is greater than the overpressure treatment point, if then unconditionally cut off all solar cell arrays immediately and carry out the overvoltage warning.
8, according to the accumulator charging control method of the described solar cell of arbitrary claim among the claim 5-7, it is characterized in that, in above-mentioned arbitrary main flow step, include following step:
Whether S111, judgement charge total current greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112;
The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113;
S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from, allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array at execution in step S114 otherwise drop into;
S114, turn back to above-mentioned arbitrary main flow step.
9, a kind of accumulator charging control method of solar cell is characterized in that, comprises the following steps:
S1, startup storage battery enter the state that all fills, and drop into solar cell array;
Whether the busbar voltage of S2, judgement controller for solar is greater than all filling limit with, if then cut off No. one solar cell array and execution in step S3; Otherwise the solar cell array and the repeated execution of steps S2 that keep input;
S3, judge whether all solar cell arrays all are cut off, if execution in step S5 then, otherwise execution in step S4;
S4, judge controller for solar busbar voltage whether less than all filling intermediate value, if then drop into No. one solar cell array and execution in step S2, otherwise direct execution in step S2;
S5, startup storage battery enter floating charge state;
S6, judge controller for solar busbar voltage whether less than the floating charge intermediate value, if execution in step S7 then, otherwise execution in step S8;
S7, judge controller for solar busbar voltage whether less than changeing even charging voltage, if execution in step S1 then, otherwise drop into No. one solar cell array, and execution in step S6;
S8, judge controller for solar busbar voltage whether greater than the floating charge upper limit, if cut off No. one solar cell array and execution in step S6, otherwise keep the solar cell array and the repeated execution of steps S8 that drop into.
10, the accumulator charging control method of solar cell according to claim 9 is characterized in that, in above-mentioned steps S1-8, includes following step:
Whether S111, judgement charge total current greater than the accumulator super-charge point, if then cut off No. one solar cell array and repeated execution of steps S111, otherwise execution in step S112;
The expected current of No. one solar cell array has just been cut off in S112, calculating, and execution in step S113;
S113, judge current charging total current, whether the expected current of the solar cell array just withdrawn from, allowance sum greater than the accumulator super-charge point, if execution in step S114 then just cuts off No. one solar cell array at execution in step S114 otherwise drop into;
S114, turn back to above-mentioned arbitrary main flow step S1-8.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877499A (en) * | 2010-04-07 | 2010-11-03 | 艾默生网络能源有限公司 | Method and system for continuously supplying power by solar energy and commercial power |
| CN102324583A (en) * | 2011-09-01 | 2012-01-18 | 航天东方红卫星有限公司 | Lithium ion storage battery charging method based on sequential shunt switching regulation (S3R) |
| CN102332621A (en) * | 2011-08-26 | 2012-01-25 | 中国电子科技集团公司第四十八研究所 | Method and device for charging and heating storage battery at low temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101877499A (en) * | 2010-04-07 | 2010-11-03 | 艾默生网络能源有限公司 | Method and system for continuously supplying power by solar energy and commercial power |
| CN101877499B (en) * | 2010-04-07 | 2012-07-18 | 艾默生网络能源有限公司 | Method and system for continuously supplying power by solar energy and commercial power |
| CN102332621A (en) * | 2011-08-26 | 2012-01-25 | 中国电子科技集团公司第四十八研究所 | Method and device for charging and heating storage battery at low temperature |
| CN102332621B (en) * | 2011-08-26 | 2013-07-31 | 中国电子科技集团公司第四十八研究所 | Method and device for charging and heating storage battery at low temperature |
| CN102324583A (en) * | 2011-09-01 | 2012-01-18 | 航天东方红卫星有限公司 | Lithium ion storage battery charging method based on sequential shunt switching regulation (S3R) |
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| CN103416281A (en) * | 2013-07-17 | 2013-12-04 | 江苏新格灌排设备有限公司 | Solar energy sprinkling irrigation system with all-dimensional sprinkling irrigation |
| CN103416281B (en) * | 2013-07-17 | 2015-07-15 | 江苏新格灌排设备有限公司 | Solar energy sprinkling irrigation system with all-dimensional sprinkling irrigation |
| CN106877481A (en) * | 2015-12-14 | 2017-06-20 | 艾默生网络能源有限公司 | The power-supply system and method for a kind of parallel-operation expansion |
| CN106877481B (en) * | 2015-12-14 | 2019-10-11 | 维谛技术有限公司 | A kind of power-supply system and method for parallel-operation expansion |
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