CN201639320U - Electric vehicle and solar charging device thereof - Google Patents
Electric vehicle and solar charging device thereof Download PDFInfo
- Publication number
- CN201639320U CN201639320U CN2010200566577U CN201020056657U CN201639320U CN 201639320 U CN201639320 U CN 201639320U CN 2010200566577 U CN2010200566577 U CN 2010200566577U CN 201020056657 U CN201020056657 U CN 201020056657U CN 201639320 U CN201639320 U CN 201639320U
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- solar
- solar cell
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- pdm keyer
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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
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The utility model discloses an electric vehicle and a solar charging device thereof. The solar charging device comprises a solar battery assembly, an electric vehicle storage battery, a solar battery voltage detection unit, a pulse width modulation controller, a drive circuit and a main charging circuit. The actual voltage of the solar battery is measured by the solar battery voltage detection unit, then the PI adjustment is carried out on a deviation signal between the actual voltage of the solar battery and the preset given voltage of the solar battery and the deviation signal is input to the pulse width modulation controller, the charging current of the electric vehicle storage battery is changed by the pulse signal with a certain width, and consequently the actual voltage of the solar battery is fed back and adjusted to be consistent with the given voltage of the solar battery. The utility model realizes the tracking of the maximum output power of the solar battery by constant-voltage tracking, thereby obviously improving the charging efficiency.
Description
Technical field
The utility model relates to electric automobiles, relates in particular to a kind of electric vehicle solar charging device and a kind of electric motor car.
Background technology
Along with the solar energy industry technology rapid development, with Application of Solar Energy in traffic and transport field, the especially electric automobiles life that can be convenient for people to, and satisfy the social demand of energy-saving and environmental protection.
The power output of solar cell generally has the characteristic of nonlinear change, being about to conversion of solar energy is in the process of electric energy, because the power output of solar cell is subjected to inciding the influence of various factorss such as sun light intensity on the solar cell, ambient temperature, is difficult at any time, all obtains peak power output under any condition.Therefore, when utilizing solar cell directly to give the charge in batteries of electric motor car, can not guarantee whenever all to have very high charge efficiency, cause the waste of solar energy to a certain extent.
The utility model content
The main technical problems to be solved in the utility model is that a kind of electric vehicle solar charging device and electric motor car that improves rechargeable solar battery efficient is provided.
For solving the problems of the technologies described above, the utility model provides a kind of electric vehicle solar charging device, comprise solar module and electromobile battery, also comprise solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit;
Main charging circuit will carry out from the direct current of solar module after transformation is handled electromobile battery being charged;
Solar battery group, solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit are electrically connected successively, and main charging circuit, electromobile battery, PDM keyer and drive circuit are electrically connected successively;
Utilize the solar array voltage detecting unit to measure the solar cell virtual voltage, deviation signal between described solar cell virtual voltage and the given voltage of solar cell that presets is carried out after PI regulates, import described PDM keyer, and has the pulse signal of certain width to described drive circuit by the output of described PDM keyer, described drive circuit changes the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage reaches unanimity itself and the given voltage of solar cell.
Further, also comprise the battery tension detecting unit, described battery tension detecting unit, pulse width modulator, drive circuit and main charging circuit are electrically connected successively; Utilize the battery tension detecting unit to measure battery tension, deviation signal between described battery tension and given voltage sum of described solar cell and the described solar cell virtual voltage is carried out after PI regulates, import described PDM keyer, and the pulse signal that reduces by described PDM keyer output width is to described drive circuit, described drive circuit reduces the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage makes main charging circuit be in the open-circuit working state.
Preferably, described PDM keyer is the MCU PDM keyer.
The given voltage of described solar cell is smaller or equal to the pairing solar array voltage of solar cell peak power output.For example, the given voltage of the described solar cell that presets is 105VDC.
Described main charging circuit is a topological structure BUCK code converter.
Described solar module comprises the solar cell of 6 groups of series connection.
The utility model has also been protected a kind of electric motor car, has solar charging device, described solar charging device comprises solar module and electromobile battery, also comprises solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit;
Main charging circuit will carry out from the direct current of solar module after transformation is handled electromobile battery being charged;
Solar battery group, solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit are electrically connected successively, and main charging circuit, electromobile battery, PDM keyer and drive circuit are electrically connected successively;
Utilize the solar array voltage detecting unit to measure the solar cell virtual voltage, deviation signal between described solar cell virtual voltage and the given voltage of solar cell that presets is carried out after PI regulates, import described PDM keyer, and has the pulse signal of certain width to described drive circuit by the output of described PDM keyer, described drive circuit changes the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage reaches unanimity itself and the given voltage of solar cell.
Further, described solar charging device also comprises the battery tension detecting unit, and described battery tension detecting unit, pulse width modulator, drive circuit and main charging circuit are electrically connected successively; Utilize the battery tension detecting unit to measure battery tension, deviation signal between described battery tension and given voltage sum of described solar cell and the described solar cell virtual voltage is carried out after PI regulates, import described PDM keyer, and the pulse signal that reduces by described PDM keyer output width is to described drive circuit, described drive circuit reduces the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage makes main charging circuit be in the open-circuit working state.
Preferably, described PDM keyer is the MCU PDM keyer.
The beneficial effects of the utility model are: the mode of following the tracks of by constant voltage has realized the tracking to the solar cell peak power output, and therefore the conversion of solar energy rate of acquisition has effectively improved the charge efficiency of solar cell up to 20%, has reduced energy dissipation.
The utility model has also strengthened the stability of charging system by the over-charge protective device, make the operating state of electric motor car more reliable and more stable, has further satisfied user's request.
Description of drawings
Fig. 1 is the electric vehicle solar charging device theory diagram of a kind of embodiment of the utility model;
Fig. 2 is the characteristic working curve figure of the solar cell of a kind of embodiment of the utility model;
Fig. 3 is the solar components schematic diagram of a kind of embodiment of the utility model;
Fig. 4 is the circuit diagram of the MCU PDM keyer of a kind of embodiment of the utility model.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail below by embodiment.
Embodiment one:
Please refer to Fig. 1, the utility model electric vehicle solar charging device comprises solar module 11, main charging circuit 12, electromobile battery 13, solar array voltage detecting unit 14, PDM keyer 15 and drive circuit 16.
Wherein, solar module 11 is used to collect solar energy and converts it into electric energy, to charge to electromobile battery 13.As shown in Figure 3, solar module 11 can be made up of the polylith solar cell according to concrete needs (for example parameters such as the speed per hour of electric motor car, load-carrying), and for example at common electric motor car, the 6 groups of solar cells 110 of can connecting form solar module 11.
Utilize in the process that solar cell charges to storage battery, because the output of the power of solar cell generally has the characteristic of nonlinear change, the operating state of solar cell is not constantly can both provide peak power output.Yet as shown in Figure 2, every curve is represented the operating characteristic of solar cell under the different sunshine conditions respectively, and dotted line represents that each curve has reached peak power output, and this moment, the solar array voltage of each curve correspondence was a steady state value.That is: the pairing solar array voltage of peak power output of solar cell is constant substantially under the various sunshine conditions.Utilize this characteristic, if the mode that adopts constant voltage to follow the tracks of makes the solar cell virtual voltage consistent with the pairing solar array voltage of solar energy peak power output, then realized tracking to the solar cell peak power output, obviously can improve the operating efficiency of solar cell, more conversion of solar energy be become the power of electric motor car.
Particularly, present embodiment is regulated the main circuit of solar module 11, main charging circuit 12 and electromobile battery 13 compositions by the mode of two closed-loop controls.
Wherein, solar battery group 11, solar array voltage detecting unit 14, PDM keyer 15, drive circuit 16 and main charging circuit 12 are electrically connected successively forms Voltage loop, and Voltage loop is output as the given of electric current loop; Main charging circuit 12, electromobile battery 13, PDM keyer 15 and drive circuit 16 are electrically connected successively forms electric current loop, also can increase the charging current detecting unit 18 that is used to detect charging current.
Solar array voltage detecting unit 14 is used to measure the solar cell virtual voltage, then solar cell virtual voltage that records and the given voltage of solar cell that presets are compared by comparator or other hardware, deviation signal between the two is undertaken after PI regulates by PI (proportional integral) adjuster, input PDM keyer 15, PDM keyer 15 is exportable to have the pulse signal of certain width to drive circuit 16, drive circuit 16 pulse signals are amplified shaping to drive the power device in the main charging circuit 12, by changing the charging current that its conducting duty recently changes electromobile battery 13, thereby charging current feeds back to the current input terminal feedback regulation solar cell virtual voltage of PDM keyer 15, it is progressively reached unanimity, to reach the purpose that constant voltage is followed the tracks of with the given voltage of solar cell.
Wherein, the given voltage of solar cell for example is preset as 105VDC with the given voltage of solar cell smaller or equal to the pairing solar array voltage of solar cell peak power output.PDM keyer 15 preferred MCU (Micro Control Unit: PDM keyer single-chip microcomputer) shown in Figure 3.
In the charging process, because Voltage loop is output as the given of electric current loop, in fact electric current loop changes the pulse duration of pulse width modulator 15 outputs by charging current and the given electric current that compares in the main circuit, thereby makes the tightly given voltage of tracking solar battery of solar cell virtual voltage.
Particularly: during charging, if the solar cell virtual voltage is greater than the given voltage of solar cell, deviation signal between the two is regulated the back through PI and is changed given electric current, make the current input terminal signal of pulse width modulator 15 become big, the pulse duration of its output increases, and this pulse signal amplifies shaping with the driving power device through drive circuit 16, its conducting duty ratio is increased, therefore the charging current of electromobile battery 13 becomes big, and correspondingly, the solar cell virtual voltage progressively descends.When circuit reached stable state, the solar cell virtual voltage equaled the given voltage of solar cell, and the given electric current in the electric current loop also becomes stationary value, and is consistent with the charging current of electromobile battery 13.
Otherwise, if the solar cell virtual voltage is less than the given voltage of solar cell, opposite with above-mentioned situation, the pulse duration of pulse width modulator 16 outputs reduces, and this pulse signal amplifies shaping with the driving power device through drive circuit 16, and its conducting duty ratio is reduced, therefore, the charging current of electromobile battery 13 diminishes, and corresponding, the solar cell virtual voltage progressively increases.When circuit reached stable state, the solar cell virtual voltage equaled the given voltage of solar cell.
Embodiment two;
As shown in Figure 1, present embodiment has increased the over-charge protective function on the basis of embodiment one.Particularly, present embodiment makes it be electrically connected successively with pulse width modulator 15, drive circuit 16 and main charging circuit 12 and has formed another Voltage loop by increasing battery tension detecting unit 17.
This battery tension detecting unit 17 is used to measure battery tension, and the battery tension and the given voltage sum of solar cell that record compared with the solar cell virtual voltage that solar array voltage measuring unit 14 records, and after adopting pi regulator that the deviation signal that obtains is carried out the PI adjusting, the current input terminal of input PDM keyer 15, make its pulse signal of reducing of output width to drive circuit 16, drive circuit 16 reduces the charging current of electromobile battery 13 according to this pulse signal, be that pulse signals is amplified shaping to drive the power device in the main charging circuit 12, reduce its conducting duty ratio to reduce the charging current of electromobile battery 13, thereby feedback regulation solar cell virtual voltage progressively increases it.During stable state, the charging current vanishing, main charging circuit 12 is in the open-circuit working state, thereby has realized over-charge protective.
The utility model has also been protected the electric motor car with above solar charging device.
The mode that the utility model is followed the tracks of by constant voltage has realized the tracking to the solar cell peak power output, and therefore the conversion of solar energy rate of acquisition has effectively improved the charge efficiency of solar cell up to 20%, has reduced energy dissipation.The utility model has also strengthened the stability of charging system by the over-charge protective device, make the operating state of electric motor car more reliable and more stable, has further satisfied user's request.
Above content be in conjunction with concrete execution mode to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. an electric vehicle solar charging device comprises solar module and electromobile battery, it is characterized in that, also comprises solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit;
Main charging circuit will carry out from the direct current of solar module after transformation is handled electromobile battery being charged;
Solar battery group, solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit are electrically connected successively, and main charging circuit, electromobile battery, PDM keyer and drive circuit are electrically connected successively;
Utilize the solar array voltage detecting unit to measure the solar cell virtual voltage, deviation signal between described solar cell virtual voltage and the given voltage of solar cell that presets is carried out after PI regulates, import described PDM keyer, and has the pulse signal of certain width to described drive circuit by the output of described PDM keyer, described drive circuit changes the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage reaches unanimity itself and the given voltage of solar cell.
2. electric vehicle solar charging device as claimed in claim 1 is characterized in that, also comprises the battery tension detecting unit, and described battery tension detecting unit, pulse width modulator, drive circuit and main charging circuit are electrically connected successively;
Utilize the battery tension detecting unit to measure battery tension, deviation signal between described battery tension and given voltage sum of described solar cell and the described solar cell virtual voltage is carried out after PI regulates, import described PDM keyer, and the pulse signal that reduces by described PDM keyer output width is to described drive circuit, described drive circuit reduces the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage makes main charging circuit be in the open-circuit working state.
3. electric vehicle solar charging device as claimed in claim 1 or 2 is characterized in that, described PDM keyer is the MCU PDM keyer.
4. electric vehicle solar charging device as claimed in claim 1 or 2 is characterized in that, the given voltage of described solar cell is smaller or equal to the pairing solar array voltage of solar cell peak power output.
5. electric vehicle solar charging device as claimed in claim 4 is characterized in that, the given voltage of the described solar cell that presets is 105VDC.
6. electric vehicle solar charging device as claimed in claim 1 or 2 is characterized in that, described main charging circuit is a topological structure BUCK code converter.
7. electric vehicle solar charging device as claimed in claim 1 or 2 is characterized in that, described solar module comprises the solar cell of 6 groups of series connection.
8. electric motor car, has solar charging device, described solar charging device comprises solar module and electromobile battery, it is characterized in that, also comprises solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit;
Main charging circuit will carry out from the direct current of solar module after transformation is handled electromobile battery being charged;
Solar battery group, solar array voltage detecting unit, PDM keyer, drive circuit and main charging circuit are electrically connected successively, and main charging circuit, electromobile battery, PDM keyer and drive circuit are electrically connected successively;
Utilize the solar array voltage detecting unit to measure the solar cell virtual voltage, deviation signal between described solar cell virtual voltage and the given voltage of solar cell that presets is carried out after PI regulates, import described PDM keyer, and has the pulse signal of certain width to described drive circuit by the output of described PDM keyer, described drive circuit is according to the charging current of described pulse signal change electromobile battery, thereby feedback regulation solar cell virtual voltage reaches unanimity itself and the given voltage of solar cell.
9. electric motor car as claimed in claim 8 is characterized in that described solar charging device also comprises the battery tension detecting unit, and described battery tension detecting unit, pulse width modulator, drive circuit and main charging circuit are electrically connected successively;
Utilize the battery tension detecting unit to measure battery tension, deviation signal between described battery tension and given voltage sum of described solar cell and the described solar cell virtual voltage is carried out after PI regulates, import described PDM keyer, and the pulse signal that reduces by described PDM keyer output width is to described drive circuit, described drive circuit reduces the charging current of electromobile battery according to described pulse signal, thereby feedback regulation solar cell virtual voltage makes main charging circuit be in the open-circuit working state.
10. electric motor car as claimed in claim 8 or 9 is characterized in that, described PDM keyer is the MCU PDM keyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200566577U CN201639320U (en) | 2010-01-18 | 2010-01-18 | Electric vehicle and solar charging device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200566577U CN201639320U (en) | 2010-01-18 | 2010-01-18 | Electric vehicle and solar charging device thereof |
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| Publication Number | Publication Date |
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| CN201639320U true CN201639320U (en) | 2010-11-17 |
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| CN2010200566577U Expired - Lifetime CN201639320U (en) | 2010-01-18 | 2010-01-18 | Electric vehicle and solar charging device thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088200A (en) * | 2011-01-20 | 2011-06-08 | 潍坊广生新能源有限公司 | Solar active equalization storage battery device of electrocar |
| CN103847532A (en) * | 2012-12-03 | 2014-06-11 | 凹凸电子（武汉）有限公司 | Power management apparatus and method for electric vehicle |
| CN104578313A (en) * | 2015-01-28 | 2015-04-29 | 哈尔滨工业大学 | Charging device for lithium ion storage battery packs for satellite |
| CN104589937A (en) * | 2013-11-29 | 2015-05-06 | 仇文江 | Gasoline helicopter used both in air and on ground and provided with same helicopter body |
| CN104682864A (en) * | 2013-11-26 | 2015-06-03 | 张云山 | Adaptive solar current collection device |
| US9276431B2 (en) | 2010-10-29 | 2016-03-01 | O2Micro Inc. | Power management for electric vehicles |
| CN107508335A (en) * | 2017-08-04 | 2017-12-22 | 北京新能源汽车股份有限公司 | The current limiting method and device of charging equipment |
| CN111391950A (en) * | 2020-05-15 | 2020-07-10 | 胡灿光 | Flexible photovoltaic ceiling for charging electric vehicle |
-
2010
- 2010-01-18 CN CN2010200566577U patent/CN201639320U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9276431B2 (en) | 2010-10-29 | 2016-03-01 | O2Micro Inc. | Power management for electric vehicles |
| CN102088200A (en) * | 2011-01-20 | 2011-06-08 | 潍坊广生新能源有限公司 | Solar active equalization storage battery device of electrocar |
| CN103847532A (en) * | 2012-12-03 | 2014-06-11 | 凹凸电子（武汉）有限公司 | Power management apparatus and method for electric vehicle |
| CN104682864A (en) * | 2013-11-26 | 2015-06-03 | 张云山 | Adaptive solar current collection device |
| CN104589937A (en) * | 2013-11-29 | 2015-05-06 | 仇文江 | Gasoline helicopter used both in air and on ground and provided with same helicopter body |
| CN104578313A (en) * | 2015-01-28 | 2015-04-29 | 哈尔滨工业大学 | Charging device for lithium ion storage battery packs for satellite |
| CN107508335A (en) * | 2017-08-04 | 2017-12-22 | 北京新能源汽车股份有限公司 | The current limiting method and device of charging equipment |
| CN107508335B (en) * | 2017-08-04 | 2021-03-19 | 北京新能源汽车股份有限公司 | Current limiting method and device of charging equipment |
| CN111391950A (en) * | 2020-05-15 | 2020-07-10 | 胡灿光 | Flexible photovoltaic ceiling for charging electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI DONGMING MARSHELL ELECTRIC VEHICLE CO., L Free format text: FORMER OWNER: SHANGHAI DONGYU ELECTRIC VEHICLE CO., LTD. Effective date: 20150511 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150511 Address after: 201413 Shanghai City, Fengxian District Haijielu No. 1428 Building 2 1 workshop Patentee after: Dongming Shanghai Masil Electric Vehicle Co., Ltd. Address before: 201413 Shanghai Fengxian District city four town of mission Haijielu No. 1428 Patentee before: Shanghai Dongyu Electric Vehicle Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |