CN205160201U - Photovoltaic solar vehicle power supply system - Google Patents
Photovoltaic solar vehicle power supply system Download PDFInfo
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- CN205160201U CN205160201U CN201521039231.XU CN201521039231U CN205160201U CN 205160201 U CN205160201 U CN 205160201U CN 201521039231 U CN201521039231 U CN 201521039231U CN 205160201 U CN205160201 U CN 205160201U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The embodiment of the utility model provides a photovoltaic solar vehicle power supply system is related to, include: treater, controller, display circuit, solar charging subsystem, commercial power fill electronic system and storage battery, the solar photovoltaic board of solar charging subsystem converts the sunlight radiant energy into direct current electric output, and the charging circuit that steps up will the direct current signal steps up and handles and the direct current conversion, produces a charging voltage and a charging current, the commercial power fills electronic system and is the 2nd charging voltage and the 2nd charging current with the interchange electric signal transition of commercial power, the treater acquires output voltage from storage battery to according to a charging voltage and a charging current and/or the 2nd charging voltage and the 2nd charging current formation control signal, the controller charges to storage battery according to control signal control solar charging subsystem, perhaps controls the commercial power and fills electronic system and charge to storage battery.
Description
Technical field
The utility model relates to technical field of new energies, particularly relates to a kind of photovoltaic solar electric motor car electric power system.
Background technology
Solar energy is the strategic energy that is renewable, sustainable development.Solar electric vehicle converts utilization of power by conversion equipment to solar radiant energy, have zero discharge, low noise, the energy supplement source extensively, not limit by territorial environment, the plurality of advantages such as convenient and energy-saving, become a kind of novel green traffic instrument of following people.
Compare and only use battery-driven electric motor car with tradition, adopt solar energy as the energy providing power, the restriction of the distance travelled caused because accumulator electric-quantity is limited can be broken through.
But independently photovoltaic solar panel work has intermittence and randomness, rainy weather cisco unity malfunction.Therefore, need to develop a kind of electric power system, can solve and be used alone the problem that solar energy cannot tackle changeable weather conditions, the requirement to distance travelled can be taken into account again.
Utility model content
The purpose of this utility model is the defect for prior art, a kind of photovoltaic solar electric motor car electric power system is provided, there is environmental protection, efficiently feature, adopt two road combined power-supply service schemes, application maximal power tracing technology, makes the work of solar energy photovoltaic panel maximal efficiency; Four-part form intelligent charge is adopted to storage battery, optimizes its operational environment, extend the useful life of storage battery, reduce cost.
For achieving the above object, the utility model provides a kind of photovoltaic solar electric motor car electric power system and comprises: processor, controller, display circuit, solar charging electronic system, commercial power charged subsystem and batteries;
Described solar charging electronic system comprises solar energy photovoltaic panel and boost charge circuit; Solar radiation can be converted to DC signal and export by described solar energy photovoltaic panel; Described DC signal is carried out boosting process and direct current conversion by described boost charge circuit, produces the first charging voltage and the first charging current;
Described commercial power charged subsystem is electrically connected with city, the ac signal of civil power is converted to the second charging voltage and the second charging current;
Described processor is connected with batteries respectively with described controller, display circuit, solar charging electronic system, commercial power charged subsystem; Described processor obtains output voltage signal from described batteries, and according to described first charging voltage and the first charging current and/or the second charging voltage and the second charging current, generation control signal;
Described controller is connected respectively with described solar charging electronic system, commercial power charged subsystem and batteries, control to connect the connection between described solar charging electronic system and described batteries according to described control signal, or, control to connect the connection between described commercial power charged subsystem and described batteries;
When connecting the connection between described solar charging electronic system and described batteries, by described first charging voltage and described first charging current, described batteries is charged; When connecting the connection between described commercial power charged subsystem and described batteries, by described second charging voltage and described second charging current, described batteries is charged.
Preferably, described boost charge circuit comprises: booster converter and the first DC charger;
Described booster converter is connected with described solar energy photovoltaic panel, is transferred to described first DC charger after the voltage signal of described DC signal being carried out boosting process;
Described first DC charger carries out DC/DC conversion to the voltage signal after described boosting process, produces described first charging voltage and the first charging current, charges to described batteries; Wherein, the process of described charging comprises: trickle charge process, constant current charge process, constant voltage charge process and floating charge process.
Preferred further, described first DC charger comprises power tube, and described boost charge circuit also comprises: the first signal acquisition processing circuit, the first drive circuit and the first protective circuit;
Described first signal acquisition processing circuit is connected with described first DC charger respectively with described processor; Described first signal acquisition processing circuit is sampled to described first charging voltage and the first charging current, and sampled signal is sent to described processor; Further, the temperature parameter of the power tube of described first DC charger, the time parameter in the charging interval of described first DC charger are gathered respectively, is converted to the corresponding parameter signal of telecommunication and sends to described processor;
Described processor is according to described sampled signal and the parameter signal of telecommunication, and the current capacities of described batteries, output pulse width modulation signal, is controlled the power tube work of described first DC charger by described first drive circuit;
Described first protective circuit obtains described sampled signal and the parameter signal of telecommunication by described processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, described first protective circuit produces interrupt signal and sends to described processor, and produces the corresponding guard signal that interrupts by described processor and send to described first drive circuit.
Preferred further, described booster converter comprises power tube, and described boost charge circuit also comprises: secondary signal acquisition process circuit, the second drive circuit and the second protective circuit;
Described secondary signal acquisition process circuit is connected with described booster converter respectively with described processor; Described secondary signal acquisition process circuit is sampled to the output voltage of described booster converter and output current, and sampled signal is sent to described processor; Further, the temperature parameter of the power tube of described booster converter is gathered, be converted to the corresponding parameter signal of telecommunication and send to described processor;
Described processor processes according to described sampled signal and the parameter signal of telecommunication, output pulse width modulation signal, is controlled the power tube work of described booster converter by described second drive circuit;
Described second protective circuit obtains described sampled signal and the parameter signal of telecommunication by described processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, described second protective circuit produces interrupt signal and sends to described processor, and produces the corresponding guard signal that interrupts by described processor and send to described second drive circuit.
Preferably, described commercial power charged subsystem comprises: the second DC charger;
Described second DC charger carries out ac/dc conversion to described ac signal, produces described second charging voltage and the second charging current, charges to described batteries; Wherein, the process of described charging comprises: trickle charge process, constant current charge process, constant voltage charge process and floating charge process.
Preferred further, described second DC charger comprises power tube, and described commercial power charged subsystem also comprises: the 3rd signal acquisition processing circuit, the 3rd drive circuit and the 3rd protective circuit;
Described 3rd signal acquisition processing circuit is connected with described second DC charger respectively with described processor; Described 3rd signal acquisition processing circuit is sampled to described second charging voltage and the second charging current, and sampled signal is sent to described processor; Further, the temperature parameter of the power tube of described second DC charger, the time parameter in the charging interval of described second DC charger are gathered respectively, is converted to the corresponding parameter signal of telecommunication and sends to described processor;
Described processor is according to described sampled signal and the parameter signal of telecommunication, and the current capacities of described batteries, output pulse width modulation signal, is controlled the power tube work of described second DC charger by described 3rd drive circuit;
Described 3rd protective circuit obtains described sampled signal and the parameter signal of telecommunication by described processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, described 3rd protective circuit produces interrupt signal and sends to described processor, and produces the corresponding guard signal that interrupts by described processor and send to described 3rd drive circuit.
Preferred further, described photovoltaic solar electric motor car electric power system also comprises the 4th signal acquisition processing circuit;
Described 4th signal acquisition processing circuit is connected with described batteries, monitors, and send to described processor by detecting the data obtained to the temperature of the charging voltage of described batteries, charging current and described batteries and current capacities.
Further preferred, described processor is according to the current capacities of described time parameter and described storage battery, and current charging voltage and charging current determine the required charging interval.
Preferred further, described photovoltaic solar electric motor car electric power system also comprises display circuit, be connected with described processor, the current capacities of described batteries, charging voltage, charging current and the temperature of described batteries, charging interval and required charging interval are shown.
Preferred further, described booster converter monitors the DC signal that described solar energy photovoltaic panel exports, carry out adjustment according to described DC signal to the power output of described booster converter to control, the first charging voltage of described first DC charger and the first charging current are met and makes described electric power system be operated in maximum power point (mpp).
The photovoltaic solar electric motor car electric power system that the utility model embodiment provides, has environmental protection, efficiently feature, adopts two road combined power-supply service schemes, and application maximal power tracing technology, makes the work of solar energy photovoltaic panel maximal efficiency; Four-part form intelligent charge is adopted to storage battery, optimizes its operational environment, extend the useful life of storage battery, reduce cost.
Accompanying drawing explanation
The structural representation of a kind of photovoltaic solar electric motor car electric power system that Fig. 1 provides for the utility model embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The schematic diagram of the photovoltaic solar electric motor car electric power system that Fig. 1 provides for the utility model embodiment.As shown in the figure, this system comprises: processor 1, controller 2, display circuit 3, solar charging electronic system 4, commercial power charged subsystem 5 and batteries 6;
Processor 1 is connected with batteries 6 respectively with controller 2, display circuit 3, solar charging electronic system 4, commercial power charged subsystem 5.Processor 1 obtains output voltage signal from batteries 6, and according to the first charging voltage and the first charging current and/or the second charging voltage and the second charging current, generates control signal.
Controller 2 is connected respectively with solar charging electronic system 4, commercial power charged subsystem 5 and batteries 6, control to connect the connection between solar charging electronic system 4 and batteries 6 according to control signal, make to be charged by solar charging electronic system 4 pairs of batteries 6; Or, control to connect the connection between commercial power charged subsystem 5 and batteries, commercial power charged subsystem 5 pairs of batteries 6 charged.
Concrete, when connecting the connection between solar charging electronic system 4 and batteries 6, by the first charging voltage and the first charging current, batteries is charged; When connecting the connection between commercial power charged subsystem 5 and batteries 6, by the second charging voltage and the second charging current, batteries 6 is charged.
Further, in this example, controller 2 with closed, makes the operation that system is normally orderly for the disconnection of control switch S10, S11, S12, S13, S21, S22, S.
Solar charging electronic system 4 comprises solar energy photovoltaic panel 41 and boost charge circuit 42.Solar energy photovoltaic panel 41 receives solar radiation, solar radiation can be converted to DC signal and export.DC signal is carried out boosting process and direct current conversion by boost charge circuit 42, produces the first charging voltage and the first charging current.
Shown in composition graphs 1, in a concrete example, solar energy photovoltaic panel 41 utilize photovoltaic effect solar energy is converted to DC signal export, but due to output voltage less, therefore need to be connected with the boost charge circuit 42 of rear class by switch S 10.Also the DC signal of output is sent in signal acquisition processing circuit 91 simultaneously and carries out Real-time Collection.
Signal acquisition processing circuit 91 comprises multiple transducer, is gathered the parameter such as voltage, electric current of intensity of illumination that solar energy photovoltaic panel 41 receives, temperature, output by these transducers, goes forward side by side to be about to these signals and to be all processed into the signal of telecommunication and to send in processor 1.Processor 1 calculates according to the voltage of DC signal, electric current, obtain the real-time power output with intensity of illumination, temperature correlation, and this is converted as rear class boost charge circuit 42 foundation that maximal power tracing algorithm controls, and perform switch as controller 2 and close and disconnect the foundation controlled to select which kind of power supply plan to carry out system power supply.
Solar energy photovoltaic panel 41 in the utility model patent can adopt flexible battery plate, makes various shape.Except being arranged on except the top of electric motor car, the luggage carrier shape can also making electric motor car is placed in the front-end and back-end of car, can save space further.
Boost charge circuit 42 comprises: booster converter 421 and the first DC charger 422;
Booster converter 421 is connected with solar energy photovoltaic panel 41, and the voltage signal of the DC signal exported by solar energy photovoltaic panel 41 carries out being transferred to the first DC charger 422 after boosting processes.
Because the price of current solar energy photovoltaic panel is still higher, and be subject to the restriction of installing space, the limited amount of the solar energy photovoltaic panel 41 of prime, thus output voltage is lower, directly can not meet electric vehicle motor required voltage value and the input voltage grade required for the first DC charger 422, so need boosting process.
In addition, for improving photoelectric conversion efficiency as much as possible, self adaptation disturbance observation is adopted to carry out MPPT maximum power point tracking control in the utility model embodiment, the DC signal of solar energy photovoltaic panel 41 output is monitored by booster converter 421, carry out adjustment according to DC signal to the power output of booster converter 421 to control, enable the first charging voltage of the first DC charger 422 and the first charging current make electric power system be operated in maximum power point (mpp), substantially increase the generating efficiency of solar energy photovoltaic panel 41.
Booster converter 421 connects electric vehicle motor 10 by switch S 11, connects the first DC charger 422 by switch S 12.
First DC charger 422 carries out DC/DC conversion to the voltage signal after boosting process, produces the first charging voltage and the first charging current, charges to batteries 6.
Especially, when the relatively good abundance at sunshine of weather conditions, the first DC charger 422 is except supply electric vehicle motor 10, and dump energy can be stored in batteries 6 by it, for night or overcast and rainy driving provide power reserve.
Boost charge circuit 42 in the present embodiment also comprises: signal acquisition processing circuit 93, first drive circuit 71 and the first protective circuit 81;
Signal acquisition processing circuit 93 is connected with the first DC charger 422 respectively with processor 1; Signal acquisition processing circuit 93 is sampled to described first charging voltage and the first charging current, and sampled signal is sent to processor 1; Further, the temperature parameter of the power tube in the first DC charger, the time parameter in the charging interval of the first DC charger are gathered respectively, be converted to the corresponding parameter signal of telecommunication and send to processor 1.
Processor 1 is according to sampled signal and the parameter signal of telecommunication, and the current capacities of batteries 6, output pulse width modulation signal, is controlled the power tube work of the first DC charger 422 by the first drive circuit 71.
Concrete, the parameters such as the current capacities of the batteries 6 that the output voltage of the first DC charger 422 that processor 1 gathers according to signal acquisition processing circuit 93, output current and signal acquisition processing circuit 93 gather process, output pulse width modulation (PWM) signal, then through light-coupled isolation and the power pipe amplifying driving first DC charger 422.
First protective circuit 71 obtains sampled signal and the parameter signal of telecommunication by processor 1, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, the first protective circuit 70 produces interrupt signal and sends to processor 1, and produces the corresponding guard signal that interrupts by processor 1 and send to the first drive circuit 71.
Such as in a concrete example; processor 1 is ARM microcontroller; if there is exception; first protective circuit 81 output low level sends into ARM microcontroller I/O pin; when ARM microcontroller detects low level, abnormal conditions are described, will have automatically entered protection interruption subroutine; export and block drive singal to the first drive circuit 71, thus reach automatic hardware protection function.
In addition; can also by the various signals that signal acquisition processing circuit 93 gathers being compared in real time with set point in processor 1; when collecting current parameter value higher than set point, automatically entering and interrupting protection, processor 1 exports and blocks drive singal to the first drive circuit 71.Carry out trigger protection by processor 1, can make up because hardware fault can not carry out the problem of circuit protection in time, reach the object of duplicate protection, substantially increase the fail safe of system.
Also comprise power tube in booster converter 421, boost charge circuit 42 also comprises: secondary signal acquisition process circuit 94, second drive circuit 72 and the second protective circuit 82.Their course of work is substantially identical with the course of work of the first protective circuit 71 with above-mentioned signal acquisition processing circuit 93, first drive circuit 81, repeats no more herein.
Batteries 6, as the energy storage device of power system of electric automobile, is the core of whole system, and the impact of useful life on whole system performance and cost of batteries 6 is very important.And the principal element affecting the life-span of batteries 6 has the excessive or too small of charging current, charging voltage and the factor such as depth of discharge, ambient temperature.
The charging process of the present embodiment batteries 6 comprises: trickle charge process, constant current charge process, constant voltage charge process and floating charge process.Wherein, batteries 6 is connected with signal acquisition processing circuit 92, and when signal acquisition processing circuit 92 detects batteries 6 two ends initial voltage higher than threshold voltage, batteries directly enters constant-current charging phase by automatically crossing this one-phase of trickle charge; When batteries 6 two ends initial voltage is lower than threshold voltage, processor 1 produces control signal, first DC charger 422 is charged to batteries 6 with a very little charging current, until when its terminal voltage reaches threshold voltage, the second constant-current charging phase will be entered.This will optimize the operational environment of batteries 6 greatly, extends the useful life of batteries 6.In addition, introduce soft switch technique by resonant network, under making electric and electronic power switching tube be operated in Sofe Switch environment, open in turn off process at it, voltage, electric current there will not be simultaneously non-vanishing situation, greatly reduce the switching loss of power switch pipe.
Commercial power charged subsystem 5 is electrically connected with city, the ac signal of civil power is converted to the second charging voltage and the second charging current.
Concrete, commercial power charged subsystem 5 comprises: the second DC charger 51;
Second DC charger 51 pairs ac signal carries out ac/dc conversion, produces the second charging voltage and the second charging current, charges to batteries 6; Wherein, the process of charging also comprises: trickle charge process, constant current charge process, constant voltage charge process and floating charge process.
Commercial power charged subsystem 5 major function is, at rainy weather or night, the power output of solar energy photovoltaic panel 41 is lower can not be maintained under electric motor car continues normal travel situations, electric current, the voltage parameter of processor 1 is sent to according to acquisition process circuit 91, processor 1 sends controller signals, switch S 10, S11, S12, S13 are disconnected by controller 2, switch S 21, S22 is closed, utilizes civil power to be charged by the second DC charger 51 accumulators group 6.
In a concrete example, the second DC charger 51 can comprise previous diodes uncontrollable rectifier circuit and rear class isolation inverse-excitation converting circuit two parts.There is following characteristics: one, have employed trickle charge, constant current charge, constant voltage charge, floating charge four stage intelligent charging mode, when signal acquisition processing circuit 92 detects batteries 6 two ends initial voltage higher than threshold voltage, batteries directly enters constant-current charging phase by automatically crossing this one-phase of trickle charge; When batteries 6 two ends initial voltage is lower than threshold voltage, processor 1 produces control signal, second DC charger 52 is charged to batteries 6 with a very little charging current, until when its terminal voltage reaches threshold voltage, the second constant-current charging phase will be entered.This will optimize the operational environment of batteries 6 greatly, extends the useful life of batteries 6.In addition, introduce soft switch technique by resonant network, under making electric and electronic power switching tube be operated in Sofe Switch environment, open in turn off process at it, voltage, electric current there will not be simultaneously non-vanishing situation, greatly reduce the switching loss of power switch pipe.
Commercial power charged subsystem 5 also comprises: signal acquisition processing circuit 95, the 3rd drive circuit 73 and the 3rd protective circuit 83;
Signal acquisition processing circuit 95 is connected with the second DC charger 52 respectively with processor 1; Signal acquisition processing circuit 95 is sampled to the second charging voltage and the second charging current, and sampled signal is sent to processor 1; Further, the temperature parameter of the power tube of the second DC charger 52, the time parameter in the charging interval of the second DC charger 52 are gathered respectively, is converted to the corresponding parameter signal of telecommunication and sends to processor 1;
Processor 1 is according to sampled signal and the parameter signal of telecommunication, and the current capacities of batteries 6, output pulse width modulation signal, is controlled the power tube work of the second DC charger 52 by the 3rd drive circuit 73;
3rd protective circuit 83 obtains sampled signal and the parameter signal of telecommunication by processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, the 3rd protective circuit 83 produces interrupt signal and sends to processor 1, and produces the corresponding guard signal that interrupts by processor 1 and send to the 3rd drive circuit 73.
In addition, electric power system in the present embodiment also comprises display circuit 3, the charging voltage in charging process, charging current, the capacity of storage battery, the Current Temperatures of storage battery, charging interval and charging can be shown simultaneously and also need the parameter such as how long, very intuitively, hommization.
In the two road combined power supply plans that the present embodiment adopts, can switch according to different service condition in a particular application.
When Intensity of the sunlight is stronger, switch S 11 closes, and solar energy photovoltaic panel 41 directly powers to electric vehicle motor 10 by booster converter 421, switch S 11; When booster converter 421 power output is greater than the power required for motor 10 load, switch S 12 also closes, while solar energy photovoltaic panel 41 powers to electric vehicle motor 10 by booster converter 421, switch S 11, excess energy is stored in batteries 6 by switch S 12, first DC charger 422, switch S 13, under this state, switch S 21, S22, S disconnect.
When lower and batteries 6 capacity of solar energy photovoltaic panel 41 power output is higher can continue to maintain the normal travel situations of electric motor car under, switch S 11, S12, S13, S21 and S22 all disconnect, and switch S closes, and is powered to electric motor car by batteries 6.
When lower and batteries 6 capacity of solar energy photovoltaic panel 41 power output is lower can not continue to maintain the normal travel situations of electric motor car under, then need to be charged to electric motor car by civil power.Now, switch S disconnects, and switch S 21, S22 are closed, are charged by the second DC charger 52 accumulators group 6 by civil power.
The photovoltaic solar electric motor car electric power system that the utility model embodiment provides, has environmental protection, efficiently feature, adopts two road combined power-supply service schemes, and application maximal power tracing technology, makes the work of solar energy photovoltaic panel maximal efficiency; Four-part form intelligent charge is adopted to storage battery, optimizes its operational environment, extend the useful life of storage battery, reduce cost.
Professional should recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present utility model.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection range of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a photovoltaic solar electric motor car electric power system, is characterized in that, described electric power system comprises: processor, controller, display circuit, solar charging electronic system, commercial power charged subsystem and batteries;
Described solar charging electronic system comprises solar energy photovoltaic panel and boost charge circuit; Solar radiation can be converted to DC signal and export by described solar energy photovoltaic panel; Described DC signal is carried out boosting process and direct current conversion by described boost charge circuit, produces the first charging voltage and the first charging current;
Described commercial power charged subsystem is electrically connected with city, the ac signal of civil power is converted to the second charging voltage and the second charging current;
Described processor is connected with batteries respectively with described controller, display circuit, solar charging electronic system, commercial power charged subsystem; Described processor obtains output voltage signal from described batteries, and according to described first charging voltage and the first charging current and/or the second charging voltage and the second charging current, generation control signal;
Described controller is connected respectively with described solar charging electronic system, commercial power charged subsystem and batteries, control to connect the connection between described solar charging electronic system and described batteries according to described control signal, or, control to connect the connection between described commercial power charged subsystem and described batteries;
When connecting the connection between described solar charging electronic system and described batteries, by described first charging voltage and described first charging current, described batteries is charged; When connecting the connection between described commercial power charged subsystem and described batteries, by described second charging voltage and described second charging current, described batteries is charged.
2. photovoltaic solar electric motor car electric power system according to claim 1, is characterized in that, described boost charge circuit comprises: booster converter and the first DC charger;
Described booster converter is connected with described solar energy photovoltaic panel, is transferred to described first DC charger after the voltage signal of described DC signal being carried out boosting process;
Described first DC charger carries out DC/DC conversion to the voltage signal after described boosting process, produces described first charging voltage and the first charging current, charges to described batteries; Wherein, the process of described charging comprises: trickle charge process, constant current charge process, constant voltage charge process and floating charge process.
3. photovoltaic solar electric motor car electric power system according to claim 2, it is characterized in that, described first DC charger comprises power tube, and described boost charge circuit also comprises: the first signal acquisition processing circuit, the first drive circuit and the first protective circuit;
Described first signal acquisition processing circuit is connected with described first DC charger respectively with described processor; Described first signal acquisition processing circuit is sampled to described first charging voltage and the first charging current, and sampled signal is sent to described processor; Further, the temperature parameter of the power tube of described first DC charger, the time parameter in the charging interval of described first DC charger are gathered respectively, is converted to the corresponding parameter signal of telecommunication and sends to described processor;
Described processor is according to described sampled signal and the parameter signal of telecommunication, and the current capacities of described batteries, output pulse width modulation signal, is controlled the power tube work of described first DC charger by described first drive circuit;
Described first protective circuit obtains described sampled signal and the parameter signal of telecommunication by described processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, described first protective circuit produces interrupt signal and sends to described processor, and produces the corresponding guard signal that interrupts by described processor and send to described first drive circuit.
4. photovoltaic solar electric motor car electric power system according to claim 2, it is characterized in that, described booster converter comprises power tube, and described boost charge circuit also comprises: secondary signal acquisition process circuit, the second drive circuit and the second protective circuit;
Described secondary signal acquisition process circuit is connected with described booster converter respectively with described processor; Described secondary signal acquisition process circuit is sampled to the output voltage of described booster converter and output current, and sampled signal is sent to described processor; Further, the temperature parameter of the power tube of described booster converter is gathered, be converted to the corresponding parameter signal of telecommunication and send to described processor;
Described processor processes according to described sampled signal and the parameter signal of telecommunication, output pulse width modulation signal, is controlled the power tube work of described booster converter by described second drive circuit;
Described second protective circuit obtains described sampled signal and the parameter signal of telecommunication by described processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, described second protective circuit produces interrupt signal and sends to described processor, and produces the corresponding guard signal that interrupts by described processor and send to described second drive circuit.
5. photovoltaic solar electric motor car electric power system according to claim 1, is characterized in that, described commercial power charged subsystem comprises: the second DC charger;
Described second DC charger carries out ac/dc conversion to described ac signal, produces described second charging voltage and the second charging current, charges to described batteries; Wherein, the process of described charging comprises: trickle charge process, constant current charge process, constant voltage charge process and floating charge process.
6. photovoltaic solar electric motor car electric power system according to claim 5, it is characterized in that, described second DC charger comprises power tube, and described commercial power charged subsystem also comprises: the 3rd signal acquisition processing circuit, the 3rd drive circuit and the 3rd protective circuit;
Described 3rd signal acquisition processing circuit is connected with described second DC charger respectively with described processor; Described 3rd signal acquisition processing circuit is sampled to described second charging voltage and the second charging current, and sampled signal is sent to described processor; Further, the temperature parameter of the power tube of described second DC charger, the time parameter in the charging interval of described second DC charger are gathered respectively, is converted to the corresponding parameter signal of telecommunication and sends to described processor;
Described processor is according to described sampled signal and the parameter signal of telecommunication, and the current capacities of described batteries, output pulse width modulation signal, is controlled the power tube work of described second DC charger by described 3rd drive circuit;
Described 3rd protective circuit obtains described sampled signal and the parameter signal of telecommunication by described processor, and compared with the threshold value of the relevant parameter of setting, to determine whether to occur overvoltage, overcurrent, excess temperature; When occur overvoltage, overcurrent or excess temperature time, described 3rd protective circuit produces interrupt signal and sends to described processor, and produces the corresponding guard signal that interrupts by described processor and send to described 3rd drive circuit.
7. the photovoltaic solar electric motor car electric power system according to claim 3 or 6, is characterized in that, described photovoltaic solar electric motor car electric power system also comprises the 4th signal acquisition processing circuit;
Described 4th signal acquisition processing circuit is connected with described batteries, monitors, and send to described processor by detecting the data obtained to the temperature of the charging voltage of described batteries, charging current and described batteries and current capacities.
8. photovoltaic solar electric motor car electric power system according to claim 7, is characterized in that, described processor is according to the current capacities of described time parameter and described storage battery, and current charging voltage and charging current determine the required charging interval.
9. photovoltaic solar electric motor car electric power system according to claim 8, it is characterized in that, described photovoltaic solar electric motor car electric power system also comprises display circuit, be connected with described processor, the current capacities of described batteries, charging voltage, charging current and the temperature of described batteries, charging interval and required charging interval are shown.
10. photovoltaic solar electric motor car electric power system according to claim 2, it is characterized in that, described booster converter monitors the DC signal that described solar energy photovoltaic panel exports, carry out adjustment according to described DC signal to the power output of described booster converter to control, the first charging voltage of described first DC charger and the first charging current are met and makes described electric power system be operated in maximum power point (mpp).
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