CN205248890U - Wind -solar hybrid power supply system - Google Patents
Wind -solar hybrid power supply system Download PDFInfo
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- CN205248890U CN205248890U CN201521012710.2U CN201521012710U CN205248890U CN 205248890 U CN205248890 U CN 205248890U CN 201521012710 U CN201521012710 U CN 201521012710U CN 205248890 U CN205248890 U CN 205248890U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a wind -solar hybrid power supply system, system and load unit are connected, the system includes electrical cell, detecting element, judgement unit, calculating unit, the control unit, energy storage unit, electrical cell includes wind power generation module and solar energy power generation module, confirms through the first judgement of predetermineeing the threshold value whether load unit starts working. When load unit was in operating condition, wind power generation module is direct to supply power for the load to judgement through the second threshold is saved the partial electric quantity of many load power supplies of wind power generation module in the energy storage unit, and perhaps the partial electric quantity of not enough load power supply draws from the energy storage unit again. The utility model discloses can solve wind -force was sent out in the honourable complementary system electricity and can not get abundant absorption utilization, it is too much that storage battery charging discharges number of cycles, the short scheduling problem of battery life.
Description
Technical field
The utility model relates to renewable energy source domain, relates in particular to a kind of wind-photovoltaic complementary power supply system.
Background technology
Along with scientific and technological development and social progress, the important substance basis that the energy has become developing national economy and uplifted the people's living standard. And Renewable Energy Development changes current energy resource structure, realize the sustainable development of human society, just become an important theme of Future Social Development. Wind energy and solar energy are all good regenerative resources, and wind and solar hybrid generating system can utilize the complementarity of wind energy and solar energy resources, are a kind of novel energy electricity generation systems having compared with high performance-price ratio, have good application prospect.
The problems such as at present, the wind-light complementary system of China ubiquity wind-power electricity generation utilization rate in practice is low, and the life of storage battery is short, replacement cost height. On market, existing wind-light complementary system is all generally solar panels electricity is charged a battery by day time (when charging, electric energy conversion is that chemical energy is stored in battery), blower fan electricity charges a battery, and the electricity that daytime, battery was stored is powered to load (as LED street lamp) during for night. Like this, solar panels or blower fan electricity all be first stored in battery, again by battery powering load, can make blower fan electricity can not get absorbing fully on the one hand, can make on the other hand constantly charging and discharging of battery, and the cycle-index of charge in batteries electric discharge is limited, too frequently discharge and recharge the service life that can affect battery. In addition, battery all will carry out Conversion of Energy in the time of charge and discharge, and in energy conversion process, can lose part electric energy, and charging and discharging can cause some unnecessary energy losses continually.
In sum, how to improve the utilization rate of wind-power electricity generation in wind-light complementary system, reduce charge in batteries discharge cycles number of times, the problems such as increasing storage battery service life, are the problems that one of renewable energy source domain is needed solution badly.
Utility model content
For this reason, need to provide a kind of technical scheme of new wind light mutual complementing power supply, for solving the problems such as wind-light complementary system wind-force electricity can not get absorbing fully, and charge in batteries discharge cycles number of times is too much, and service lifetime of accumulator is short.
For achieving the above object, inventor provides a kind of wind-photovoltaic complementary power supply system, and described system is connected with load unit, and described system comprises generator unit, detecting unit, judging unit, clock synchronous unit, computing unit, control module, energy-storage units; Described generator unit comprises wind power generation module and solar electrical energy generation module, and described detecting unit comprises voltage detection module and current detection module; Described generator unit is connected with detecting unit, and described computing unit is connected with detecting unit, and judging unit is connected with computing unit, and described control module is connected with judging unit, and described control module is connected with energy-storage units;
The voltage that described voltage detection module provides for detection of solar electrical energy generation module, described judging unit is for judging that whether voltage that solar electrical energy generation module provides is lower than the first predetermined threshold value, if control module is in running order for control load unit; Otherwise control module in the state of quitting work, and is stored in energy-storage units by the electric weight that wind power generation module and solar electrical energy generation module provide for control load unit;
In the time that load unit is in running order,
Described clock synchronous unit is for carrying out clock synchronous to voltage detection module and current detection module;
The voltage that described voltage detection module provides for detection of current wind power generation module;
The electric current that described current detection module provides for detection of current wind power generation module;
The voltage and current of described computing unit for providing according to current wind power generation module, calculates the electric weight that current wind power generation module provides;
Described judging unit is for judging whether the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, if control module transfers to load unit for the electric weight that current wind power generation module is provided, computing unit is for calculating the poor of electric weight that wind power generation module provides and the second predetermined threshold value, obtain difference electric weight, control module is also for being stored in energy-storage units by difference electric weight; Otherwise control module transfers to load unit for the electric weight that current wind power generation module is provided, computing unit is poor for the electric weight that calculates the second predetermined threshold value and wind power generation module and provide, obtain difference electric weight, control module is used for obtaining difference electric weight from energy-storage units, and difference electric weight is transferred to load unit.
Further, described system also comprises rectification unit, and described rectification unit is connected with control module, and described control module transfers to load unit for the electric weight that wind power generation module and solar electrical energy generation module are provided after rectification unit carries out rectification.
Further, described solar electrical energy generation module is photovoltaic electroplax, and the first predetermined threshold value is determined according to the intensity of illumination of photovoltaic electroplax.
Further, power consumption when described the second predetermined threshold value is load unit work.
Be different from prior art, the wind-photovoltaic complementary power supply system described in technique scheme, described method is applied to wind-photovoltaic complementary power supply system, and described system comprises generator unit, detecting unit, judging unit, computing unit, control module, energy-storage units; Described generator unit comprises wind power generation module and solar electrical energy generation module, and described detecting unit comprises voltage detection module and current detection module; Described generator unit is connected with detecting unit, and described computing unit is connected with detecting unit, and judging unit is connected with computing unit, and described control module is connected with judging unit, and described control module is connected with energy-storage units. In use, voltage detection module detects the voltage that solar electrical energy generation module provides, judging unit judges that whether voltage that solar electrical energy generation module provides is lower than the first predetermined threshold value, control module control load unit, in the state of quitting work, and is stored in energy-storage units by the electric weight that wind power generation module and solar electrical energy generation module provide if not; If control module control load unit is in running order; In the time that load unit is in running order, voltage detection module detects the voltage that current wind power generation module provides; Current detection module detects the electric current that current wind power generation module provides; The voltage and current that computing unit provides according to current wind power generation module, calculates the electric weight that current wind power generation module provides; Judge by judging unit whether the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, if the electric weight that control module provides current wind power generation module transfers to load unit, in addition, computing unit is provided by the poor of the electric weight that provides of wind power generation module and the second predetermined threshold value, obtain difference electric weight, difference electric weight is stored in energy-storage units by control module; Otherwise the electric weight that control module provides current wind power generation module transfers to load unit, computing unit calculates the poor of electric weight that the second predetermined threshold value and wind power generation module provide, obtain difference electric weight, control module obtains difference electric weight from energy-storage units, and difference electric weight is transferred to load unit.
By the first predetermined threshold value is set, detect in real time the voltage that solar electrical energy generation module provides by voltage detection module, and by judging unit, this voltage and the first predetermined threshold value are compared, judge that whether this voltage is lower than the first predetermined threshold value, thereby determine that load unit is in running order or quits work state, make load unit to start working exactly or to quit work; By default the second predetermined threshold value, judge with judging unit, and the electric weight providing with computing unit calculating wind power generation module and the difference electric weight of the second predetermined threshold value, when the electric weight that can provide at wind power generation module is greater than the second predetermined threshold value, the electric weight supply load unit directly wind power generation module being provided uses, and remaining difference electric weight is stored in to energy-storage units; When the electric weight providing at wind power generation module equals the second predetermined threshold value, the electric weight supply load unit directly wind power generation module being provided uses; When the electric weight providing at wind power generation module is less than the second predetermined threshold value, the whole supply loads of the electric weight unit that wind power generation module is provided uses, electricity consumption part that load unit is not enough is from energy-storage units power taking, ensure that the electric weight that wind power generation module provides can obtain maximum absorption utilization, also reduce energy-storage units charging and discharging number of times, ensure to extend the service life of energy-storage units simultaneously. Thereby there are wide market prospects at renewable energy source domain.
Brief description of the drawings
Fig. 1 is the wind-photovoltaic complementary power supply system schematic diagram that the utility model one embodiment relates to;
Fig. 2 is the wind-photovoltaic complementary power supply system schematic diagram that another embodiment of the utility model relates to;
Fig. 3 is the control circuit schematic diagram of the control module that relates to of the utility model one embodiment;
Fig. 4 is the wind light mutual complementing method of supplying power to flow chart that the utility model one embodiment relates to.
Description of reference numerals:
101, generator unit; 111, wind power generation module; 121, solar electrical energy generation module;
102, detecting unit; 112, voltage detection module; 122, current detection module;
103, computing unit;
104, judging unit;
105, control module;
106, energy-storage units;
107, load unit.
Detailed description of the invention
By describe in detail technical scheme technology contents, structural feature, realized object and effect, below in conjunction with specific embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, the wind-photovoltaic complementary power supply system schematic diagram relating to for the utility model one embodiment. Wind-photovoltaic complementary power supply system comprises generator unit 101, detecting unit 102, judging unit 103, computing unit 104, control module 105, energy-storage units 106, clock synchronous unit; Generator unit 101 comprises wind power generation module 111 and solar electrical energy generation module 121, wind power generation module 111 can be wind-driven generator or wind power generating set, in order to being mechanical energy by wind energy transformation, again mechanical energy is converted into electric energy, this electric energy can, for to energy-storage units charging, also can be exported to load unit and use after rectification unit rectification. Rectification unit can be for constant current case, for being constant current powering load by current conversion. Solar electrical energy generation module 121, in order to solar energy is transformed into electric energy, can adopt the modes such as photovoltaic generation, photochemistry Generate, Generation, Generator induction generating or photo-biological generating, and preferred, in embodiment of the present utility model, described solar electrical energy generation module is photovoltaic electroplax. Detecting unit 102 comprises voltage detection module 112 and current detection module 122; The voltage that the voltage that voltage detection module 112 provides for real-time detection solar electrical energy generation module and wind power generation module provide, current detection module 122 is for detecting in real time the electric current that wind power generation module provides.
Described generator unit 101 is connected with detecting unit 102, makes detecting unit can detect in real time voltage, electric current etc. that monitoring generator unit provides, and then calculates the generating electric weight that current generator unit provides. Computing unit 103 is connected with detecting unit 102, the voltage and current that the wind power generation module that computing unit 103 can be detected according to detecting unit provides, calculates electric weight that current wind power generation module provides and the difference electric weight of this electric weight and the second predetermined threshold value. Judging unit 104 is connected with computing unit 103, and judging unit 104 can judge whether the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, thereby determines that the electric weight whether wind power generation module being provided offers load unit and uses. Control module 105 is connected with judging unit 104, after voltage, electric current or the generation current of judging unit 104 to generator unit done judgement, send judged result to control module, carry out the corresponding order of judged result by the corresponding hardware circuit of control module control. Control module 105 is connected with energy-storage units 106, and control module can be controlled charging or the generating of energy-storage units. Energy-storage units is the device of concrete storage function, for example, can be battery.
Judging unit 104 judges that whether voltage that solar electrical energy generation module provides is lower than the first predetermined threshold value, if control module control load unit is in running order; Control module control load unit, in the state of quitting work, and is stored in energy-storage units by the electric weight that wind power generation module and solar electrical energy generation module provide if not. The first predetermined threshold value can be a self-defining numerical value, also can be that at certain determined voltage value of intensity of illumination, (solar electrical energy generation module is under different intensities of illumination according to solar electrical energy generation module, the voltage difference providing), preferably, the first predetermined threshold value is at certain determined voltage value of intensity of illumination according to solar electrical energy generation module, the setting of this voltage value, can in suitable, start working as long as meet load unit, suitable time, quit work just. Like this, in the time that intensity of illumination is weak (if the dusk is to the late into the night), load unit is started working automatically, and the electric weight that generator unit provides is stored in energy-storage units for load electricity consumption or part. In the time that intensity of illumination is stronger, (as daytime), load unit quit work, and the electric weight that generator unit provides is stored in energy-storage units.
Using when wind-photovoltaic complementary power supply system, the voltage providing when solar electrical energy generation module is lower than the first predetermined threshold value, and when load unit is in running order, first clock synchronous unit carries out clock synchronous to voltage detection module and current detection module. Like this, can ensure the data that electric current that voltage that voltage detection module gathers and current detection module gather is the same time, effectively improve the accuracy of calculating the electric weight that current wind power generation module provides. Voltage detection module detects the voltage that current wind power generation module provides; Current detection module detects the electric current that current wind power generation module provides simultaneously; Then the voltage and current of the current wind power generation module detecting is exported to computing unit by voltage detection module and current detection module, the voltage and current that computing unit provides according to wind power generation module, calculates the electric weight that current wind power generation module provides; And judge by judging unit whether the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, meanwhile, computing unit is provided by the poor of the electric weight that provides of wind power generation module and the second predetermined threshold value, obtains difference electric weight. If the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, the electric weight that control module provides current wind power generation module transfers to load unit, and the difference electric weight obtaining will be stored in energy-storage units by control module; If the electric weight that current wind power generation module provides is less than the second predetermined threshold value, the electric weight that control module provides current wind power generation module transfers to load unit, control module obtains difference electric weight from energy-storage units simultaneously, and difference electric weight is transferred to load unit, make load unit have enough electric weight normally to work. Like this, in the time that load unit is in running order, the electric weight that wind power generation module provides is directly used in load supplying, can make the electric weight that in wind-light complementary system, wind power generation module provides be absorbed fully on the one hand, reduce on the other hand charge in batteries discharge cycles number of times, increasing storage battery service life effectively.
In the present embodiment, wind-photovoltaic complementary power supply system also comprises rectification unit, and this rectification unit is connected with control module, and the electric weight that control module provides wind power generation module or solar electrical energy generation module transfers to load unit after rectification unit carries out rectification. The use of rectification unit, makes the electric weight of load unit constant and stable. Specifically when in use, if the electric weight that wind power generation module provides is greater than the second predetermined threshold value, the electric weight that control module provides wind power generation module carries out rectification through rectification unit, needed load electric weight (the second predetermined threshold value) is transferred to load unit, and the difference electric weight obtaining is stored in energy-storage units by control module; If the electric weight that wind power generation module provides equals the second predetermined threshold value, the electric weight that control module provides wind power generation module directly transfers to load unit after rectification unit carries out rectification; If the electric weight that wind power generation module provides is less than the second predetermined threshold value, the electric weight that control module provides current wind power generation module adds that the difference electric weight from obtaining energy-storage units transfers to load unit after rectification unit carries out rectification, guarantees that load unit has enough electric weight normally to work.
In the present embodiment, described solar electrical energy generation module is photovoltaic electroplax, and the first predetermined threshold value is determined according to the intensity of illumination of photovoltaic electroplax. The voltage providing due to photovoltaic electroplax and illuminating area and intensity of illumination are closely related, generally the illuminating area of photovoltaic electroplax changes little, and daytime, Intensity of the sunlight was constantly to change, be that the voltage that photovoltaic electroplax provides is constantly to change, this variation mainly causes by intensity of illumination, and therefore the first predetermined threshold value determines it is most suitable according to the intensity of illumination of photovoltaic electroplax. Photovoltaic electroplax can utilize the photovoltaic effect of interface and directly change luminous energy into electric energy, and in working order time, photovoltaic electroplax surface can receive sunray and irradiate, and converts solar energy into electrical energy and export, and obtains the very use of photovoltaic. The electric energy that photovoltaic electroplax can produce is just closely related with the intensity of illumination of the sun, and when the intensity of illumination of the sun is larger, the electric energy producing is larger, photovoltaic electroplax can provide voltage also just larger. When the intensity of illumination of the sun less, photovoltaic electroplax can provide voltage namely less. Therefore, photovoltaic electroplax is as the solar electrical energy generation module in the present embodiment, and making to be by day electric energy by light energy conversion well, and energy-storage units is charged; In approaching evening, photovoltaic electroplax also can be sensitive perception Intensity of the sunlight (intensity of illumination is more weak, the voltage that photovoltaic electroplax provides is just lower), make voltage that judging unit can judge that photovoltaic electroplax provides exactly whether lower than the first predetermined threshold value, if control module control load unit is in running order. Because the first predetermined threshold value is determined according to the intensity of illumination of photovoltaic electroplax.
In the present embodiment, power consumption when described the second predetermined threshold value is load unit work. Specifically when in use, power consumption when if the electric weight that wind power generation module provides is greater than load unit work, the electric weight that control module provides wind power generation module carries out rectification through rectification unit, power consumption when load unit is worked transfers to load unit, and the difference electric weight obtaining is stored in energy-storage units by control module; Power consumption when if the electric weight that wind power generation module provides equals load unit work, the electric weight that control module provides wind power generation module directly transfers to load unit after rectification unit carries out rectification; Power consumption when if the electric weight that wind power generation module provides is less than load unit work, the electric weight that control module provides current wind power generation module adds that the difference electric weight from obtaining energy-storage units transfers to load unit after rectification unit carries out rectification, guarantees that load unit has enough electric weight normally to work. Like this, can make the electric weight that in wind-light complementary system, wind power generation module provides be absorbed fully on the one hand, reduce on the other hand charge in batteries discharge cycles number of times, increasing storage battery service life effectively.
Refer to Fig. 2, Fig. 2 is the wind-photovoltaic complementary power supply system schematic diagram that another embodiment of the utility model relates to. Control module is controlled the charging and discharging of energy-storage units by control circuit, and particularly, charging and discharging can be carried out by charging circuit. In certain embodiments, control module, computing unit, judging unit, clock synchronous unit can also be integrated into the electronic equipment with data processing function, for example, can be a single-chip microcomputer. Fig. 3 is the control circuit schematic diagram of the control module that relates to of the utility model one embodiment. The function that Fig. 3 realizes is that electric weight and the second predetermined threshold value by wind power generation module is provided compares, according to comparative result and calculate both difference, deciding is that load electricity consumption is independently to be provided by wind power generation module, and provides the part electric weight that exceedes load electricity consumption to be stored in energy-storage units wind power generation module. Or load electricity consumption is provided jointly by wind power generation module and energy-storage units. In Fig. 3, memory cell is the battery shown in Fig. 3, and current the provided voltage of wind power generation module in the utility model is provided blower fan output voltage.
As shown in Figure 4, utility model people also provides a kind of method of supplying power to of wind-photovoltaic complementary power supply system, described method is applied to wind-photovoltaic complementary power supply system, and described system comprises generator unit, detecting unit, judging unit, computing unit, control module, energy-storage units; Generator unit comprises wind power generation module and solar electrical energy generation module, wind power generation module can be wind-driven generator or wind power generating set, in order to being mechanical energy by wind energy transformation, again mechanical energy is converted into electric energy, this electric energy can, for to energy-storage units charging, also can be exported to load unit and use after rectification unit rectification; Solar electrical energy generation module, in order to solar energy is transformed into electric energy, can adopt the modes such as photovoltaic generation, photochemistry Generate, Generation, Generator induction generating or photo-biological generating, preferred, in embodiment of the present utility model, adopts photovoltaic generation. Detecting unit comprises voltage detection module and current detection module; The voltage that the voltage that voltage detection module provides for real-time detection solar electrical energy generation module and wind power generation module provide, current detection module is for detecting in real time the electric current that wind power generation module provides. Described generator unit is connected with detecting unit, makes detecting unit that the voltage that provides of monitoring generator unit, electric current or generating electric weight can be provided in real time. Computing unit is connected with detecting unit, and the voltage and current that the wind power generation module that computing unit can be detected according to detecting unit provides calculates electric weight that current wind power generation module provides and the difference electric weight of this electric weight and the second predetermined threshold value. Judging unit is connected with computing unit, and like this, judging unit can judge whether the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, thereby determines that the electric weight whether wind power generation module being provided offers load unit and uses. Control module is connected with judging unit, and voltage, electric current or the generation current of judging unit to generator unit sends judged result to control module after having done judgement, carries out the corresponding order of judged result by control module. Control module is connected with energy-storage units, and control module can be controlled charging or the generating of energy-storage units. Described method can make the electric weight that in wind-light complementary system, wind power generation module provides be absorbed fully, has reduced charge in batteries discharge cycles number of times, increasing storage battery service life effectively. Said method comprising the steps of:
First clock synchronous unit carries out clock synchronous to voltage detection module and current detection module. Like this, can ensure the data that electric current that voltage that voltage detection module gathers and current detection module gather is the same time, effectively improve the accuracy of calculating the electric weight that current wind power generation module provides. Enter step S401 voltage detection module and detect the voltage that solar electrical energy generation module provides, then enter voltage that step S402 judging unit judges that solar electrical energy generation module provides whether lower than the first predetermined threshold value, if it is in running order to enter step S403 control module control load unit; Otherwise enter step S404 control module control load unit in the state of quitting work, and the electric weight that wind power generation module and solar electrical energy generation module provide is stored in to energy-storage units. The first predetermined threshold value can be a self-defining numerical value, also can be that at certain determined voltage value of intensity of illumination, (solar electrical energy generation module is under different intensities of illumination according to solar electrical energy generation module, the voltage difference providing), preferably, the first predetermined threshold value is at certain determined voltage value of intensity of illumination according to solar electrical energy generation module, the setting of this voltage value, can in suitable, start working as long as meet load unit, suitable time, quit work just. Like this, in the time that intensity of illumination is weak (if the dusk is to the late into the night), load unit is started working automatically, and the electric weight that generator unit provides is stored in energy-storage units for load electricity consumption or part. In the time that intensity of illumination is stronger, (as daytime), load unit quit work, and the electric weight that generator unit provides is stored in energy-storage units.
The voltage providing when solar electrical energy generation module is lower than the first predetermined threshold value, be that load unit is when in running order, after step S403, can enter step S405 voltage detection module and detect the voltage that current wind power generation module provides, current detection module detects the electric current that current wind power generation module provides. The voltage and current of the current wind power generation module detecting is exported to computing unit by voltage detection module and current detection module, then can enter the voltage and current that step S406 computing unit provides according to wind power generation module, calculate the electric weight that current wind power generation module provides. Then can enter the electric weight that step S407 judging unit judges that current wind power generation module provides and whether be greater than the second default threshold. If the electric weight that current wind power generation module provides is greater than the second predetermined threshold value, the electric weight that entering step S408 control module provides current wind power generation module transfers to load unit, computing unit is provided by the poor of the electric weight that provides of wind power generation module and the second predetermined threshold value, obtain difference electric weight, control module will be stored in energy-storage units by control module. If the electric weight that current wind power generation module provides is less than the second predetermined threshold value, the electric weight that entering step S409 control module provides current wind power generation module transfers to load unit, computing unit calculates the poor of electric weight that the second predetermined threshold value and wind power generation module provide, obtain difference electric weight, control module obtains difference electric weight from energy-storage units, and difference electric weight is transferred to load unit. Thereby ensure to make load unit have enough electric weight normally to work. Can make the electric weight that in wind-light complementary system, wind power generation module provides be absorbed fully on the one hand, reduce on the other hand charge in batteries discharge cycles number of times, increasing storage battery service life effectively.
In the present embodiment, wind-photovoltaic complementary power supply system also comprises rectification unit, and this rectification unit is connected with control module, and the electric weight that control module provides wind power generation module or solar electrical energy generation module transfers to load unit after rectification unit carries out rectification. The use of rectification unit, makes the electric weight of load unit constant and stable. Specifically when in use, if the electric weight that wind power generation module provides is greater than the second predetermined threshold value, the electric weight that control module provides wind power generation module carries out rectification through rectification unit, needed load electric weight (the second predetermined threshold value) is transferred to load unit, and the difference electric weight obtaining is stored in energy-storage units by control module; If the electric weight that wind power generation module provides equals the second predetermined threshold value, the electric weight that control module provides wind power generation module directly transfers to load unit after rectification unit carries out rectification; If the electric weight that wind power generation module provides is less than the second predetermined threshold value, the electric weight that control module provides current wind power generation module adds that the difference electric weight from obtaining energy-storage units transfers to load unit after rectification unit carries out rectification, guarantees that load unit has enough electric weight normally to work. Can make the electric weight that in wind-light complementary system, wind power generation module provides be absorbed fully so on the one hand, reduce on the other hand charge in batteries discharge cycles number of times, increasing storage battery service life effectively.
In the present embodiment, described solar electrical energy generation module is photovoltaic electroplax, and the first predetermined threshold value is determined according to the intensity of illumination of photovoltaic electroplax. The voltage providing due to photovoltaic electroplax and illuminating area and intensity of illumination are closely related, generally the illuminating area of photovoltaic electroplax changes little, and daytime, Intensity of the sunlight was constantly to change, be that the voltage that photovoltaic electroplax provides is constantly to change, this variation mainly causes by intensity of illumination, and therefore the first predetermined threshold value determines it is most suitable according to the intensity of illumination of photovoltaic electroplax. Photovoltaic electroplax can utilize the photovoltaic effect of interface and directly change luminous energy into electric energy, and in working order time, photovoltaic electroplax surface can receive sunray and irradiate, and converts solar energy into electrical energy and export, and obtains the very use of photovoltaic. The electric energy that photovoltaic electroplax can produce is just closely related with the intensity of illumination of the sun, and when the intensity of illumination of the sun is larger, the electric energy producing is larger, photovoltaic electroplax can provide voltage also just larger. When the intensity of illumination of the sun less, photovoltaic electroplax can provide voltage namely less. Therefore, photovoltaic electroplax is as the solar electrical energy generation module in the present embodiment, and making to be by day electric energy by light energy conversion well, and energy-storage units is charged; In approaching evening, photovoltaic electroplax also can be sensitive perception Intensity of the sunlight (intensity of illumination is more weak, the voltage that photovoltaic electroplax provides is just lower), make voltage that judging unit can judge that photovoltaic electroplax provides exactly whether lower than the first predetermined threshold value, if control module control load unit is in running order. Because the first predetermined threshold value is determined according to the intensity of illumination of photovoltaic electroplax.
In the present embodiment, power consumption when described the second predetermined threshold value is load unit work. Specifically when in use, power consumption when if the electric weight that wind power generation module provides is greater than load unit work, the electric weight that control module provides wind power generation module carries out rectification through rectification unit, power consumption when load unit is worked transfers to load unit, and the difference electric weight obtaining is stored in energy-storage units by control module; Power consumption when if the electric weight that wind power generation module provides equals load unit work, the electric weight that control module provides wind power generation module directly transfers to load unit after rectification unit carries out rectification; Power consumption when if the electric weight that wind power generation module provides is less than load unit work, the electric weight that control module provides current wind power generation module adds that the difference electric weight from obtaining energy-storage units transfers to load unit after rectification unit carries out rectification, guarantees that load unit has enough electric weight normally to work. Can make the electric weight that in wind-light complementary system, wind power generation module provides be absorbed fully so on the one hand, reduce on the other hand charge in batteries discharge cycles number of times, increasing storage battery service life effectively. Thereby there are wide market prospects at renewable energy source domain.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially. And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the terminal device that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or terminal device. The in the situation that of more restrictions not, by the key element limiting statement " comprising ... " or " comprising ... ", and be not precluded within process, method, article or the terminal device that comprises described key element and also have other key element. In addition, in this article, " being greater than ", " being less than ", " exceeding " etc. are interpreted as and do not comprise given figure; " more than ", " below ", " in " etc. be interpreted as and comprise given figure.
Although the various embodiments described above are described; once but those skilled in the art obtain the basic creative concept of cicada; can make other change and amendment to these embodiment; so the foregoing is only embodiment of the present utility model; not thereby limit scope of patent protection of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, within being all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a wind-photovoltaic complementary power supply system, described system is connected with load unit, it is characterized in that, and described system comprises generator unit, detecting unit, judging unit, computing unit, control module, clock synchronous unit, energy-storage units; Described generator unit comprises wind power generation module and solar electrical energy generation module, and described detecting unit comprises voltage detection module and current detection module; Described generator unit is connected with detecting unit, and described computing unit is connected with detecting unit, and judging unit is connected with computing unit, and described control module is connected with judging unit, and described control module is connected with energy-storage units;
The voltage that voltage detection module provides for detection of solar electrical energy generation module, described judging unit compares for voltage and the first predetermined threshold value that solar electrical energy generation module is provided, and described control module is in running order for control load unit;
Described clock synchronous unit is for carrying out clock synchronous to voltage detection module and current detection module;
The voltage that described voltage detection module also provides for detection of current wind power generation module;
The electric current that described current detection module provides for detection of current wind power generation module;
The voltage and current of described computing unit for providing according to current wind power generation module, calculates the electric weight that current wind power generation module provides;
Described judging unit compares for electric weight and the second predetermined threshold value that current wind power generation module is provided, described control module is for transferring to difference electric weight load unit or difference electric weight is stored in to energy-storage units, the electric weight that described difference electric weight provides for wind power generation module and the second predetermined threshold value poor.
2. wind-photovoltaic complementary power supply system according to claim 1, it is characterized in that, described system also comprises rectification unit, described rectification unit is connected with control module, and described control module transfers to load unit for the electric weight that wind power generation module and solar electrical energy generation module are provided after rectification unit carries out rectification.
3. wind-photovoltaic complementary power supply system according to claim 1, is characterized in that, described solar electrical energy generation module is photovoltaic electroplax, and the first predetermined threshold value is determined according to the intensity of illumination of photovoltaic electroplax.
4. wind-photovoltaic complementary power supply system according to claim 1, is characterized in that, power consumption when described the second predetermined threshold value is load unit work.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085853A (en) * | 2023-02-11 | 2023-05-09 | 广东永光新能源设计咨询有限公司 | Heat supply method and system for renewable energy sources |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116085853A (en) * | 2023-02-11 | 2023-05-09 | 广东永光新能源设计咨询有限公司 | Heat supply method and system for renewable energy sources |
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