CN206129578U - Optimize photovoltaic water pump system of water yield - Google Patents

Optimize photovoltaic water pump system of water yield Download PDF

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Publication number
CN206129578U
CN206129578U CN201621080588.7U CN201621080588U CN206129578U CN 206129578 U CN206129578 U CN 206129578U CN 201621080588 U CN201621080588 U CN 201621080588U CN 206129578 U CN206129578 U CN 206129578U
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China
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water pump
data
flows
module
interval
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CN201621080588.7U
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Chinese (zh)
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谢磊
邓伟
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Gcl Power Design Institute Co Ltd
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Gcl Power Design Institute Co Ltd
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Abstract

The utility model relates to an optimize photovoltaic water pump system of water yield, include: water pump module contains interval a plurality of water pumps of corresponding match respectively with different sunshine intensity, a plurality of water pumps link altogether has outlet conduit, with the power output module that photovoltaic module and water pump module connect for receive and output the electric quantity that photovoltaic module carried extremely water pump module, control module is used for the basis outlet conduit's flow data with the sunshine intensity that power output module's output data acquisition corresponds is interval to transmit to water pump switching module according to the interval control signal of formation of the sunshine intensity who acquires, connect in water pump between water pump module and the power output module switches the module for control signal according to receiving switches the water pump that corresponds among the water pump module is connected power output module. The utility model discloses counterglow energy use efficiency can be promoted and the water yield of photovoltaic water pump system is improved.

Description

The photovoltaic water pump system of optimization water yield
Technical field
This utility model is related to photovoltaic application field, more particularly to a kind of photovoltaic water pump system of optimization water yield.
Background technology
The popularization and application of photovoltaic water pump system, solve irrigation, the domestic animal of the areas without electricity such as desert, island, remote mountain areas And the problems such as Drinking Water for Residents, and have great importance to improving the ecological environment.
Conventional photovoltaic water pump system includes the equipment such as photovoltaic module and a single water pump, and water pump is corresponding to specific " lift-flow " curve, lift refers to the height that water pump can pump up water, and flow refers to that water pump conveys the body of water within the unit interval Product.In fair weather, the change curve of intensity of sunshine is close to sine curve, when sunshine low intensity is in certain threshold value, meeting Cause the power that photovoltaic module is exported that the power required for lift is reached less than water pump, now water pump then cannot water outlet.Obvious nothing Method meets water consumption greatly, needs the application scenario persistently supplied water.If the weaker weather of the sunshine such as cloudy, whole photovoltaic water pump System can water yield it is few even cannot water outlet, reduce the utilization ratio of counterglow energy.
Can generally consider that accumulator is installed in photovoltaic water pump system powers for water pump jointly, but installation accumulator needs to increase Plus certain cost, and later maintenance and the expense changed are increased, therefore, current photovoltaic water pump system is seldom applied.
Utility model content
Based on this, it is necessary to provide a kind of photovoltaic water pump system of optimization water yield, that improves counterglow energy utilizes effect Rate.
A kind of photovoltaic water pump system of optimization water yield, including:
Water pump module, the multiple water pumps comprising Corresponding matching respectively interval from different intensity of sunshines, the plurality of water pump There is the outlet conduit for connecting altogether;
The power output module being connected with photovoltaic module and water pump module, for receiving and exports photovoltaic module conveying Electricity to the water pump module;
Control module, for according to the output number of the data on flows of the outlet conduit and the power output module According to obtaining, corresponding intensity of sunshine is interval, and is transferred to water pump switching mould according to the interval control signal that generates of the intensity of sunshine for obtaining Block;
The water pump handover module being connected between the water pump module and power output module, for according to the control for receiving Signal switches corresponding water pump in the water pump module and connects the power output module.
Wherein in one embodiment, also include:
The flow collection module of the outlet conduit is arranged at, the flow collection module connects the control module, uses In the data on flows for gathering the outlet conduit and it is transferred to the control module.
Wherein in one embodiment, also include:
The power collection module being connected with the power output module and control module, for gathering the power output mould The output data of block are simultaneously transferred to the control module.
Wherein in one embodiment, the control module includes:
A unit is obtained, for obtaining the data on flows of the outlet conduit and the output of the power output module Data;
Processing unit, the data on flows and output data for obtaining to acquisition Unit one is processed;
Determining unit, it is corresponding for being determined according to the data on flows after the processing unit processes and output data Intensity of sunshine is interval;
Unit two are obtained, for obtaining the water pump of the intensity of sunshine determined with determining unit interval Corresponding matching;
Control signal signal generating unit, for generating the water pump and the work(of the Corresponding matching for obtaining acquisition Unit two The control signal of rate output module connection.
Wherein in one embodiment, the interval matching of the different intensity of sunshine has default flow rate zone and power area Between;
The determining unit includes:
Flow determining unit, for determining the processing unit processes after data on flows be located default flow area Between;
Power determining unit, for determining the processing unit processes after output data be located default power It is interval;
Judging unit, the flow rate zone and the power determining unit for being determined according to the flow determining unit determines Power interval judge that the intensity of sunshine of matching is interval.
Wherein in one embodiment, the flow rate zone is continuum, and the processing unit is included at data on flows Reason unit, the data on flows processing unit includes:
Marginal value adds unit, for deteriorating to less than two continuous flows when the data on flows that acquisition Unit one is obtained During the marginal value in interval, the marginal value is added default change value as new marginal value;
Marginal value subtracts unit, for rising to more than two continuous flows when the data on flows that acquisition Unit one is obtained During the marginal value in interval, the marginal value is deducted default change value as new marginal value.
Wherein in one embodiment, the flow rate zone is continuum;
The processing unit includes data on flows processing unit, and the data on flows processing unit includes:
Flow adds unit, for deteriorating to less than Liang Ge continuous flows area when the data on flows that acquisition Unit one is obtained Between marginal value when, then using obtain data on flows plus default flow value as new data on flows;
Flow subtracts unit, for rising to more than Liang Ge continuous flows area when the data on flows that acquisition Unit one is obtained Between marginal value when, then the data on flows of acquisition is deducted into default flow value as new data on flows.
In the above photovoltaic water pump system, water pump module includes Corresponding matching respectively interval from different intensity of sunshines Multiple water pumps, control module can obtain right according to the data on flows of outlet conduit and the output data of power output module The intensity of sunshine answered is interval, and generates control signal, and water pump handover module can switch and the day for obtaining according to the control signal It is operated according to the water pump of intensity interval matching, so as under different intensities of illumination, water pump module can work, is being lifted The water yield of photovoltaic water pump system is improved while the utilization ratio of counterglow energy.
A kind of water yield optimization method, based on above-described photovoltaic water pump system, the water yield optimization method includes:
The data on flows of collection outlet conduit and the output data of power output module;
Data on flows and output data to gathering is processed;
It is interval according to the data on flows after process and the corresponding intensity of sunshine of output data acquisition;
According to the corresponding water pump of the interval switching of intensity of sunshine.
Wherein in one embodiment, the interval matching of the intensity of sunshine has default flow rate zone and power interval;
The corresponding intensity of sunshine interval of data on flows and output data acquisition according to after process includes:
What the output data after the default flow rate zone at the data on flows place after judgement process and process were located Power interval;
Flow rate zone and power interval according to judging determines that the intensity of sunshine of matching is interval.
Wherein in one embodiment, the flow rate zone is continuum, at the data on flows of described pair of collection Reason includes:
When the data on flows of collection deteriorates to less than the interval marginal value of two continuous flows, the marginal value is added Default change value is used as new marginal value;
When the data on flows of collection is risen to more than the interval marginal value of two continuous flows, the marginal value is deducted Default change value is used as new marginal value.
Wherein in one embodiment, the flow rate zone is continuum, at the data on flows of described pair of collection Reason includes:
When the data on flows of collection deteriorates to less than the marginal value of two continuous flow rate zones, then will acquisition flow Data are plus default flow value as new data on flows;
When the data on flows of collection is risen to more than the interval marginal value of two continuous flows, then the flow number that will be obtained According to deducting default flow value as new data on flows.
It is described to be included according to the corresponding water pump of the interval switching of intensity of sunshine wherein in one embodiment:
According to the corresponding control signal of the interval generation of the intensity of sunshine;
Corresponding water pump is switched according to the control signal.
In the above water yield optimization method, according to the data on flows and the output work of power output module of outlet conduit Rate data can obtain corresponding intensity of sunshine interval, and according to intensity of sunshine interval corresponding pump working can be switched, so as to Under different intensities of illumination, corresponding water pump can work, so as to lifting the utilization ratio of counterglow energy and improving light The water yield of FUSHUI pumping system.
Description of the drawings
Fig. 1 is the structure connection diagram of the photovoltaic water pump system of an embodiment;
Fig. 2 is the circuit connection diagram of the photovoltaic water pump system of an embodiment;
Fig. 3 is the structural representation of control module 140 in Fig. 1;
Fig. 4 is the schematic flow sheet of the water yield optimization method of an embodiment.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain This utility model, is not used to limit this utility model.
As depicted in figs. 1 and 2, the photovoltaic water pump system of the optimization water yield of an embodiment includes the photovoltaic group for generating electricity Part 110, also includes:
Water pump module 150, the multiple water pumps comprising Corresponding matching respectively interval from different intensity of sunshines, multiple water pumps have The outlet conduit for connecting altogether;
The power output module 120 being connected with photovoltaic module 110 and water pump module 150, for receiving and exports photovoltaic group The electricity of the conveying of part 110 is to water pump module 150;
Control module 140, for according to the output data of the data on flows of outlet conduit and power output module 120 Corresponding intensity of sunshine interval is obtained, and water pump handover module is transferred to according to the interval control signal that generates of the intensity of sunshine for obtaining 130;
The water pump handover module 130 being connected between water pump module 150 and power output module 120, for according to reception Control signal switching water pump module 150 in corresponding water pump connect power output module 120.
In the above photovoltaic water pump system, water pump module includes Corresponding matching respectively interval from different intensity of sunshines Multiple water pumps, control module can obtain right according to the data on flows of outlet conduit and the output data of power output module The intensity of sunshine answered is interval, and generates control signal, and water pump handover module can switch and the day for obtaining according to the control signal It is operated according to the water pump of intensity interval matching, so as under different intensities of illumination, water pump module can work, is being lifted The water yield of photovoltaic water pump system is improved while the utilization ratio of counterglow energy.
In the present embodiment, flow collection module is provided with outlet conduit, flow collection module link control module 140, For gathering the data on flows of outlet conduit and being transferred to control module 140.It will be evident that the data on flows of the present embodiment is water outlet The water yield of pipeline, is volume that water pump conveys water within the unit interval.
The present embodiment is provided with the power collection module being connected with power output module 120 and control module 140, for adopting The output data of collection power output module 120 are simultaneously transferred to control module 140.Wherein, power output module 120 is MPPT (maximal power tracing control) power output module, including DC controller or alternating-current controller etc..
In the present embodiment, multiple water pumps that water pump module 150 includes can be direct current or exchange water pump.Each water pump difference " lift-flow " curve of correspondence one intensity of sunshine interval, i.e. each water pump is respectively under corresponding intensity of sunshine interval Curve after optimization.
As shown in figure 3, control module 140 includes:
A unit 141 is obtained, for obtaining the data on flows of outlet conduit and the output data of power output module;
Processing unit 142, for processing the data on flows and output data that obtain the acquisition of a unit 141;
Determining unit 143, for corresponding with the determination of output data according to the data on flows after the process of processing unit 142 Intensity of sunshine it is interval;
Two units 144 are obtained, for obtaining the water pump of the intensity of sunshine determined with determining unit 143 interval Corresponding matching;
Control signal signal generating unit 145, for generating the water pump and power of the Corresponding matching that two units 144 are obtained will be obtained The control signal of output module connection.
In the present embodiment, the interval matching of different intensity of sunshines has default flow rate zone and power interval, according to default Flow rate zone and power interval can determine that corresponding intensity of sunshine is interval.Specifically, determining unit 143 includes:
Flow determining unit, for determining processing unit processes after data on flows be located default flow rate zone;
Power determining unit, for determining processing unit processes after output data be located default power area Between;
Judging unit, for the power area that the flow rate zone that determined according to flow determining unit and power determining unit determine Between judge that the intensity of sunshine for matching is interval.
In the present embodiment, flow rate zone is continuum.When data on flows changes at the marginal value of two continuums When, data on flows may change repeatedly, be more than or be less than for a moment marginal value for a moment at short notice, be easily caused and switch repeatedly water Pump, reduces water yield, acceleration equipment abrasion.
As a kind of implementation of the present embodiment, can avoid switching water pump repeatedly by the change to marginal value.Tool Body, in the present embodiment, processing unit includes data on flows processing unit, and data on flows processing unit adds unit including marginal value Subtract unit with marginal value.
Marginal value add unit for when obtain a unit acquisition data on flows deteriorate to less than two continuous flow intervals Marginal value when, using marginal value plus default change value as new marginal value.
When data on flows declines, during if less than marginal value, because the flow rate zone that data on flows is located becomes Change, can cause to switch water pump, now, using marginal value plus default change value as after new marginal value, due to new critical Value is larger, therefore, when data on flows changes near original marginal value, when only it is more than new marginal value, just can lead Switching water pump is caused, can be prevented effectively from and be switched water pump repeatedly.
Marginal value subtract unit for when obtain a unit acquisition data on flows rise to more than two continuous flow intervals Marginal value when, marginal value is deducted default change value as new marginal value.
When data on flows rises, during if it greater than marginal value, because the flow rate zone that data on flows is located becomes Change, can cause to switch water pump, now, marginal value is deducted default change value as after new marginal value, due to new critical Value is less, therefore, when data on flows changes near original marginal value, when only it is less than new marginal value, just can lead Switching water pump is caused, can be prevented effectively from and be switched water pump repeatedly.
As another kind of implementation of the present embodiment, can also avoid switching repeatedly by carrying out data on flows process Water pump.Specifically, processing unit includes data on flows processing unit, and data on flows processing unit adds unit and flow including flow Subtract unit.
Flow adds unit for when obtaining the data on flows that a unit obtains and deteriorate to less than two continuous flows interval During marginal value, then the data on flows for obtaining is added into default flow value as new data on flows.
When data on flows deteriorates to less than the interval marginal value of two continuous flows, the data on flows of acquisition can be added Upper default flow value forms new data on flows, when data on flows declines, as long as new data on flows is more than marginal value, then The data on flows of acquisition is still within same flow rate zone, therefore, when data on flows declines, default flow value can conduct The hysteresis of sluggish water pump switching is interval, prevents from switching water pump repeatedly.
Flow subtracts unit for when obtaining the data on flows that a unit obtains and rise to more than two continuous flows interval During marginal value, then the data on flows of acquisition is deducted into default flow value as new data on flows.
When data on flows is risen to more than the interval marginal value of two continuous flows, data on flows can be deducted default Flow value form new data on flows, as long as new data on flows when data on flows rises, is then obtained still less than marginal value The data on flows for taking is still within same flow rate zone, therefore, when data on flows rises, default flow value can be used as slow The dead band of stagnant water yield optimization, prevents from switching water pump repeatedly.
It is appreciated that in the present embodiment, processing unit including marginal value add unit, marginal value subtract unit or including Flow adds unit, flow to subtract unit, and marginal value adds that unit, marginal value subtract unit and flow plus unit, flow subtract unit and only use Calculate in simple plus-minus, in the present embodiment, marginal value adds that unit, marginal value subtract unit or flow plus unit, flow subtract list Unit can be simple logic module, corresponding, and processing unit can be logic module.Further, in the present embodiment, mould is controlled Block 140 can be logical device, or judge the single-chip microcomputer of calculation function with simple logic, or transport with logical judgment Calculate chip of function etc..Understand that the realization of the present embodiment control module 140 can be based entirely on hardware based on this.
The present embodiment is described further below by way of implementing.As shown in Fig. 2 water pump module 150 is provided with three Individual water pump, respectively water pump 1, water pump 2 and water pump 3, and three water pumps share an outlet conduit.Three water pumps are corresponded to respectively not Same intensity of sunshine is interval, flow rate zone and power interval that different intensity of sunshine intervals matches respectively.Water pump handover module 130 are provided with the switch for controlling three water pumps respectively.Photovoltaic module 110 connects power output module 120.Set in outlet conduit Flow collection module is equipped with, power output module 120 is connected with power collection module.
When the present embodiment photovoltaic water pump system operationally, flow collection module gather outlet conduit data on flows, Power collection module gathers the output data of power output module 120, and control module 140 receives data on flows and output Processed after power data, and the work(that the flow rate zone and output data at the data on flows place after judging to process is located Rate is interval, can determine that corresponding intensity of sunshine is interval according to the flow rate zone and power interval judged, and control module 140 is given birth to Into corresponding control signal, the intensity of sunshine that the control signal is used to after being received by water pump handover module 130 to determine is interval Corresponding water pump is connected with power output module 120.
In the present embodiment, by three water pumps 1, water pump 2 and water pump 3 respectively correspond to it is low, in, strong third gear intensity of sunshine, this reality The intensity of sunshine interval for applying example provides as follows:
Low intensity of sunshine S ∈ [0~300W/m2);
Middle intensity of sunshine S ∈ [300~700W/m2);
High intensity of sunshine S ∈ [700~1000W/m2].
The flow rate zone and power interval matched with intensity of sunshine interval is as follows:
Power interval:[0, P1), [P1, P2), [P2, Pmax);
Flow rate zone:[0, Q1), [Q1, Q2), [Q2, Qmax).
For data on flows Q and output data P, it is stipulated that as follows:
Work as P<P1, and Q<During Q1, the low intensity of sunshine of correspondence;
Work as P1<=P<P2, and Q1<=Q<During Q2, intensity of sunshine in correspondence;
Work as P>P2, and Q>During Q2, the high intensity of sunshine of correspondence.
In this enforcement, intensity of sunshine interval, flow rate zone, power interval are preferably all continuum, and three of the above is interval The concrete adjustment of data can be carried out according to practical application scene, it would however also be possible to employ discontinuous interval, or one of them or two It is individual to adopt continuously or discontinuously interval.
When data on flows Q and output data P are unsatisfactory for above-mentioned regulation, then water pump is likely to be at stall with idle running State, can be considered failure.
For flow rate zone [0, Q1), [Q1, Q2), [Q2, Qmax).When intensity of sunshine meets certain condition, can cause Data on flows Q changes up and down in two continuous interval critical points, and such as Q1 or Q2 so can cause repeatedly to switch water pump. For example, data on flows Q may for a moment be more than Q1, at this time, it may be necessary to switch to water pump 2, for a moment data on flows Q may be less than Q1, Need to switch make-up water pump 1 again, water pump is switched repeatedly can cause water yield to reduce and increase equipment loss.
Therefore, a kind of settling mode of the present embodiment is, when data on flows Q deteriorates to less than the critical of two flow rate zones During value, because the flow rate zone that data on flows Q is located changes, switch water pump, and marginal value is added into default change value △ Q are used as new marginal value.When data on flows Q rises to the marginal value more than flow rate zone, it is located due to data on flows Q Flow rate zone changes, and switches water pump, and marginal value is deducted default change value △ Q as new marginal value.
Specifically, when data on flows Q from it is interval [Q1, Q2) deteriorate to less than Q1 when, then have Q1 '=Q1+ △ Q.Due to stream The interval that amount data Q are located for [0, Q1 '), therefore, can water pump 1 be switched to by water pump 2.Now, if data on flows Q is original Marginal value Q1 near when changing, as long as data on flows Q is less than new marginal value Q1 ', then will not switch water pump, because new is faced Dividing value Q1 ' is more than original marginal value Q1, can be prevented effectively from and switch water pump repeatedly.In the present embodiment, △ Q can be 10%Q1, More specifically numerical value or relational expression can also be arranged as required to.
When data on flows Q from it is interval [0, Q1) rise to more than Q1 when, then have Q1 '=Q1- △ Q.Due to due to flow number The interval being located according to Q for [Q1 ', Q2), therefore, can water pump 2 be switched to by water pump 1.Now, if data on flows Q is original When changing near marginal value Q1, as long as data on flows Q is more than new marginal value Q1 ', then will not switch water pump, due to new critical Value Q1 ' original marginal value Q1 is less than, can be prevented effectively from and switch water pump repeatedly.
In the same manner, when data on flows Q from it is interval [Q2, Qmax) deteriorate to less than Q2 and during more than Q1, then have Q2 '=Q2+ △ Q.The interval being located due to data on flows Q for [Q1, Q2 '), therefore, can water pump 2 be switched to by water pump 3.Now, if flow number When changing near original marginal value Q2 according to Q, as long as data on flows Q is less than new marginal value Q2 ', then will not switch water pump, Due to new marginal value Q2 ' it is more than original marginal value Q2, can be prevented effectively from and switch water pump repeatedly.
When data on flows Q from it is interval [Q1, Q2) rise to more than Q2 when, then have Q2 '=Q2- △ Q.Due to data on flows Q The interval at place for [Q2 ', Qmax), therefore, can water pump 3 be switched to by water pump 2.Now, if data on flows Q is faced in original When changing near dividing value Q2, as long as data on flows Q is more than new marginal value Q2 ', then will not switch water pump, due to new marginal value Q2 ' is less than original marginal value Q2, can be prevented effectively from and switch water pump repeatedly.
In another kind of settling mode in the present embodiment, when data on flows Q, to deteriorate to less than two continuous flows interval During marginal value, then data on flows Q for obtaining is added into default flow value △ Q as new data on flows.When in data on flows Q When rising to more than the interval marginal value of two continuous flows, then data on flows Q of acquisition is deducted default flow value △ Q as New data on flows.
Specifically, when data on flows Q from it is interval [Q1, Q2) deteriorate to less than Q1 when, then have Q=Q+ △ Q.If by Q+ △ The new data on flows that Q draws still it is interval [Q1, Q2), then need not switch water pump, otherwise, represent what data on flows Q declined It is larger, need to switch water pump, now can be switched to water pump 1 from water pump 2.It will be evident that △ Q can be used as the switching of sluggish water pump Hysteresis is interval, prevents from switching water pump repeatedly.In the present embodiment, △ Q can be 10%Q1, it is also possible to be arranged as required to more to have The numerical value or relational expression of body.
When data on flows Q from it is interval [0, Q1) rise to more than Q1 when, then have Q=Q- △ Q.If drawn by Q- △ Q New data on flows still it is interval [0, Q1), then need not switch water pump, otherwise, represent that data on flows Q rises larger, need Switch water pump, water pump 2 can be switched to from water pump 1.
In the same manner, when data on flows Q from it is interval [Q2, Qmax) deteriorate to less than Q2 and during more than Q1, then have Q=Q+ △ Q.Such as The new data on flows that fruit is drawn by Q+ △ Q still it is interval [Q2, Qmax), then need not switch water pump, otherwise, represent flow number According to the larger of Q declines, need to switch water pump, now can be switched to water pump 2 from water pump 3.
When data on flows Q from it is interval [Q1, Q2) rise to more than Q2 when, then have Q=Q- △ Q.If drawn by Q- △ Q New data on flows still it is interval [Q1, Q2), then need not switch water pump, otherwise, represent that data on flows Q rises larger, Need to switch water pump, water pump 3 can be switched to from water pump 2.
Thus, under different intensities of illumination, corresponding pump working can be selected, improves water yield, lift counterglow Resource utilization.
The water pump changing method of one embodiment is based on above-described photovoltaic water pump system, as shown in figure 4, water pump switching side Method includes step S120 to step S180.
Step S120, gathers the data on flows of outlet conduit and the output data of power output module;
Step S140, the data on flows and output data to gathering is processed;
Step S160, it is interval according to the data on flows after process and the corresponding intensity of sunshine of output data acquisition;
Step S180, according to the corresponding water pump of the interval switching of intensity of sunshine.
In the above water pump changing method, according to the data on flows and the output of power output module of outlet conduit It is interval that data can obtain corresponding intensity of sunshine, and according to intensity of sunshine interval corresponding pump working can be switched, so as to Under different intensities of illumination, corresponding water pump can work, so as to lifting the utilization ratio of counterglow energy and improving photovoltaic The water yield of water pump system.
In the present embodiment, the interval matching of intensity of sunshine has default flow rate zone and power interval;Wherein, step S160 root Include according to the data on flows after process and the corresponding intensity of sunshine interval of output data acquisition:
What the output data after the default flow rate zone at the data on flows place after judgement process and process were located Power interval;
Flow rate zone and power interval according to judging determines that the intensity of sunshine of matching is interval.
In a wherein embodiment, flow rate zone is continuum, and step S140 carries out process bag to the data on flows for gathering Include:
When the data on flows of collection deteriorates to less than the interval marginal value of two continuous flows, the marginal value is added Default change value is used as new marginal value;
When the data on flows of collection is risen to more than the interval marginal value of two continuous flows, the marginal value is deducted Default change value is used as new marginal value.
In another embodiment, flow rate zone is continuum, and step S140 carries out process to the data on flows for gathering to be included:
When the data on flows of collection deteriorates to less than the marginal value of two continuous flow rate zones, then will acquisition flow Data are plus default flow value as new data on flows;
When the data on flows of collection is risen to more than the interval marginal value of two continuous flows, then the flow number that will be obtained According to deducting default flow value as new data on flows.
In the present embodiment, step S180 includes according to the corresponding water pump of the interval switching of intensity of sunshine:
According to the corresponding control signal of the interval generation of intensity of sunshine;
Corresponding water pump is switched according to control signal.
It is pointed out that implementing for the present embodiment water pump changing method is specifically interior based on above photovoltaic water pump system Hold, referring in particular to the content of the present embodiment to photovoltaic water pump system.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment In each technical characteristic it is all possible combination be all described, as long as however, there is no lance in the combination of these technical characteristics Shield, is all considered to be the scope of this specification record.
Above example only expresses several embodiments of the present utility model, and its description is more concrete and detailed, but and Therefore the restriction to utility model patent scope can not be interpreted as.It should be pointed out that for the ordinary skill people of this area For member, without departing from the concept of the premise utility, some deformations and improvement can also be made, these belong to this reality With new protection domain.Therefore, the protection domain of this utility model patent should be defined by claims.

Claims (7)

1. it is a kind of optimization water yield photovoltaic water pump system, it is characterised in that include:
Water pump module, the multiple water pumps comprising Corresponding matching respectively interval from different intensity of sunshines, the plurality of water pump has altogether Outlet conduit even;
The power output module being connected with photovoltaic module and water pump module, for receiving and exports the work(of photovoltaic module conveying Rate is to the water pump module;
Control module, for being obtained according to the output data of the data on flows of the outlet conduit and the power output module Corresponding intensity of sunshine interval is taken, and water pump handover module is transferred to according to the interval control signal that generates of the intensity of sunshine for obtaining;
The water pump handover module being connected between the water pump module and power output module, for according to the control signal for receiving Switch corresponding water pump in the water pump module and connect the power output module.
2. photovoltaic water pump system according to claim 1, it is characterised in that also include:
The flow collection module of the outlet conduit is arranged at, the flow collection module connects the control module, for adopting Collect the data on flows of the outlet conduit and be transferred to the control module.
3. photovoltaic water pump system according to claim 1, it is characterised in that also include:
The power collection module being connected with the power output module and control module, for gathering the power output module Output data are simultaneously transferred to the control module.
4. the photovoltaic water pump system according to any one of claim 1-3, it is characterised in that the control module includes:
A unit is obtained, for obtaining the data on flows of the outlet conduit and the output number of the power output module According to;
Processing unit, the data on flows and output data for obtaining to acquisition Unit one is processed;
Determining unit, for determining corresponding sunshine according to the data on flows after the processing unit processes and output data Intensity interval;
Unit two are obtained, for obtaining the water pump of the intensity of sunshine determined with determining unit interval Corresponding matching;
Control signal signal generating unit, the water pump for generating the Corresponding matching for obtaining acquisition Unit two is defeated with the power Go out the control signal of module connection.
5. photovoltaic water pump system according to claim 4, it is characterised in that the interval matching of the different intensity of sunshine has Default flow rate zone and power interval;
The determining unit includes:
Flow determining unit, for determining the processing unit processes after data on flows be located default flow rate zone;
Power determining unit, for determining the processing unit processes after output data be located default power area Between;
Judging unit, for the work(that the flow rate zone that determined according to the flow determining unit and the power determining unit determine The intensity of sunshine of rate interval judgement matching is interval.
6. photovoltaic water pump system according to claim 5, it is characterised in that the flow rate zone is continuum, described Processing unit includes data on flows processing unit, and the data on flows processing unit includes:
Marginal value adds unit, for deteriorating to less than two continuous flow intervals when the data on flows that acquisition Unit one is obtained Marginal value when, using the marginal value plus default change value as new marginal value;
Marginal value subtracts unit, for rising to more than two continuous flow intervals when the data on flows that acquisition Unit one is obtained Marginal value when, the marginal value is deducted default change value as new marginal value.
7. photovoltaic water pump system according to claim 5, it is characterised in that the flow rate zone is continuum;
The processing unit includes data on flows processing unit, and the data on flows processing unit includes:
Flow adds unit, for when data on flows that acquisition Unit one is obtained, to deteriorate to less than two continuous flows interval During marginal value, then the data on flows for obtaining is added into default flow value as new data on flows;
Flow subtracts unit, and the data on flows for working as the acquisition acquisition of Unit one rises to interval more than two continuous flows During marginal value, then the data on flows of acquisition is deducted into default flow value as new data on flows.
CN201621080588.7U 2016-09-26 2016-09-26 Optimize photovoltaic water pump system of water yield Withdrawn - After Issue CN206129578U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438313A (en) * 2016-09-26 2017-02-22 协鑫电力设计研究有限公司 Photovoltaic water pump system and water yield optimization method
CN112360731A (en) * 2020-10-10 2021-02-12 深圳第三代半导体研究院 Multi-machine parallel photovoltaic equipment control system and optimization method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438313A (en) * 2016-09-26 2017-02-22 协鑫电力设计研究有限公司 Photovoltaic water pump system and water yield optimization method
CN112360731A (en) * 2020-10-10 2021-02-12 深圳第三代半导体研究院 Multi-machine parallel photovoltaic equipment control system and optimization method

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