CN103085676B - Power generating system of extended-range electric vehicle - Google Patents
Power generating system of extended-range electric vehicle Download PDFInfo
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- CN103085676B CN103085676B CN201110341147.3A CN201110341147A CN103085676B CN 103085676 B CN103085676 B CN 103085676B CN 201110341147 A CN201110341147 A CN 201110341147A CN 103085676 B CN103085676 B CN 103085676B
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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
- Y02T10/70—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
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention provides a power generating system of an extended-range electric vehicle. The power generating system comprises a extended-range power generating unit and a power conversion device, wherein the extended-range power generating unit is applicable to generating power for charging a battery of the electric vehicle; and the power conversion device is applicable to subjecting power generated by the extended-range power generating unit to AC-DC (alternating current-direct current) or DC-DC conversion. The power generating system of the extended-range electric vehicle is characterized by further comprising a photovoltaic power generating unit and a control unit, wherein the photovoltaic power generating unit is applicable to generating power for charging the battery; and the control unit comprises is applicable to controlling the power generating system to switch between a photovoltaic power generating mode and a range extending mode. In the range extending mode, the battery is recharged by the extended-range power generating unit; in the photovoltaic power generating mode, the battery is recharged by the photovoltaic power generating unit. The power conversion device is applicable to subjecting the power generated by the photovoltaic power generating unit to DC-DC conversion. When a range extender does not work, the power conversion device can be used by the photovoltaic power generating unit and is no longer an extra load in the non-range-extending mode, and meanwhile, the photovoltaic power generating unit can charge the battery of the electric vehicle.
Description
Technical field
The present invention relates to electronlmobil field, particularly relate to a kind of power generating system for range-extended.
Background technology
In recent years, electric vehicle engineering continues to bring out.Because electronlmobil can reduce carbon-dioxide emission, reduce green-house effect; Also reduce the discharge of other pernicious gases, be beneficial to environmental protection, so be called one of developing direction that auto trade is new.But at present, electronlmobil is also difficult to replace orthodox car completely, one of reason is exactly that the battery energy storage of common electric automobile is insufficient, and operating range is shorter.
For the problems referred to above, there is stroke-increasing electric automobile.As shown in Figure 1, in common electronlmobil, battery is charged by onboard charger; Battery driven motor rotates thus makes running car.Stroke-increasing electric automobile also comprises the distance increasing unit 100 be connected with battery compared to common electronlmobil, distance increasing unit 100 for charging to it, to increase the mileage of electric automobile during traveling before running down of battery.As shown in the figure, distance increasing unit 100 comprises increasing journey generator unit 102 (or 102 ') and power conversion unit 101, the implementation of existing increasing journey generator unit generally comprises two kinds (in Fig. 1, distance increasing unit 100 is divided into two different pieces with identity function with dashed region, and the two can select a use):
The first, by internal combustion engine 1021 burns gasoline or diesel oil, electrical generator 1022 is generated electricity, the alternating current that electrical generator 1022 produces is for conversion into required direct current (DC) through power conversion unit 101, charges to battery;
The second, produce direct current (DC) by fuel cell 102 ', this direct current (DC) is for conversion into required direct current (DC) through power conversion unit, charges to battery.
But, because distance increasing unit generally to battery charging, so most of time is in off position, is only equivalent to the extra load of automobile lower than just starting during predetermined threshold at battery charging state (state of charge).
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of power generating system for range-extended, wherein introduces photovoltaic power generation apparatus, the part or all of circuit of the multiplexing distance increasing unit of this photovoltaic power generation apparatus.
For achieving the above object, a kind of power generating system for range-extended is provided in one embodiment of the present of invention, comprises: increase journey generator unit 102,102 ', be suitable for producing the electric energy charged to the battery of electronlmobil; With power conversion unit 101, be suitable for carrying out AC-DC conversion or DC-DC conversion to the electric energy increasing the generation of journey generator unit 102,102 '; It is characterized in that, described power generating system also comprises: photovoltaic generation unit 900,900 ', is suitable for producing the electric energy charged to described battery; With control unit 304, be suitable for controlling described power generating system to switch between photovoltaic generation pattern and increasing journey pattern, under described increasing journey pattern, by described increasing journey generator unit 102,102 ', described battery is charged, under described photovoltaic generation pattern, by described photovoltaic generation unit 900,900 ', described battery is charged; The electric energy that described power conversion unit 101 is also suitable for photovoltaic generation unit 900,900 ' produces carries out DC-DC conversion.
Optionally, described control unit also couples with described battery, is suitable for detecting battery charging state; When described battery charging state is lower than predetermined threshold value, described control unit is suitable for controlling described power generating system and is in increasing journey pattern; When described battery charging state is higher than predetermined threshold value, described control unit is suitable for controlling described power generating system and is in photovoltaic generation pattern.
Optionally, described increasing journey generator unit comprises internal combustion engine and electrical generator, under described increasing journey pattern, starts described electrical generator charge to described battery by described internal combustion engine.
Optionally, described electrical generator provides neutral, and described power conversion unit is three-phase voltage-type inverter, and described photovoltaic generation unit comprises contactless switch and photovoltaic panel; Wherein, described three-phase voltage-type inverter has positive bus-bar, negative busbar and three interchange ends; The positive and negative terminals of battery connects the positive and negative busbar of three-phase voltage-type inverter respectively; Three threephase stator inductance exchanging end and connect electrical generator respectively of three-phase voltage-type inverter; Photovoltaic panel is connected with contactless switch, and one end of circuit that series connection is formed is connected with the negative busbar of three-phase voltage-type inverter, and the other end is connected with described neutral, makes the threephase stator inductance of described electrical generator as three filter inductances in parallel thus.
Optionally, described power conversion unit is three-phase voltage-type inverter, and described photovoltaic generation unit comprises photovoltaic panel, the first contactless switch and the second contactless switch; Wherein, described three-phase voltage-type inverter has positive bus-bar, negative busbar and three interchange ends; The positive and negative terminals of battery connects the positive and negative busbar of three-phase voltage-type inverter respectively; Photovoltaic panel is connected with the second contactless switch, the circuit that series connection is formed is in parallel with the first contactless switch, one end of circuit formed in parallel is connected with one of threephase stator inductance of electrical generator, the other end and three-phase voltage-type inverter three exchange one of to hold and are connected, and remaining two-phase stator inductance exchanges to hold with remaining two respectively and is connected; Make the threephase stator inductance of described electrical generator as three filter inductances in parallel thus.
Optionally, under photovoltaic generation pattern, described stator inductance is also suitable for the current filtering produced photovoltaic generation unit.
Optionally, described contactless switch is mechanical switch or semiconductor switch.
Optionally, described increasing journey generator unit comprises fuel cell.
Optionally, described power conversion unit is booster converter, and booster converter comprises inductance, the first binistor and second switch device, and photovoltaic generation unit comprises photovoltaic panel, the first contactless switch and the second contactless switch; Fuel cell is connected with the first contactless switch, and photovoltaic panel is connected with the second contactless switch, and two circuit series parallel connections, form the first circuit; Battery and second switch devices in series, the circuit that series connection is formed is in parallel with the first binistor, forms second circuit; One end of first circuit is connected with one end of second circuit by the inductance of booster converter, and the other end of the first circuit is connected with the other end of second circuit.
Optionally, described binistor is semiconductor switch, comprises IGBT, MOSFET or SiC; Described contactless switch is mechanical switch, or is replaced by binistor.
Compared with prior art, the invention has the advantages that:
(1) when distance increasing unit does not work, its power conversion unit can be used by photovoltaic generation unit, makes distance increasing unit be no longer extra load under non-increasing journey pattern; Photovoltaic generation unit is to charging on-vehicle battery simultaneously, allows battery-driven car can travel farther distance;
(2) because roof arranges photovoltaic panel, can solar power be absorbed, reduce and use air-conditioning in car, so automobile energy consumption can be reduced further, allow battery-driven car can travel farther distance.
Accompanying drawing explanation
Fig. 1 is existing stroke-increasing electric automobile structural representation;
Fig. 2 is stroke-increasing electric automobile structural representation provided by the invention;
Fig. 3 is the power generating system for range-extended circuit diagram provided in one embodiment of the invention;
Fig. 4 is the power generating system for range-extended circuit diagram provided in another embodiment of the present invention;
Fig. 5 is the power generating system for range-extended circuit diagram provided in another embodiment of the present invention.
Detailed description of the invention
Definition:
(1) distance increasing unit: in stroke-increasing electric automobile, for increasing the device charged the battery under journey pattern, comprising and increasing journey generator unit and power conversion unit.
(2) power conversion unit (power converter): be booster converter (boost converter) or rectifying device (such as VSI) etc.
(3) increase journey pattern: in stroke-increasing electric automobile, when the charge condition of on-vehicle battery is lower than predetermined threshold, increase journey generator unit and start charging on-vehicle battery, then the power generating system of stroke-increasing electric automobile is in and increases journey pattern.
(4) photovoltaic generation pattern: in stroke-increasing electric automobile, when the charge condition of on-vehicle battery is not less than predetermined threshold, vehicle-mounted photovoltaic generator unit is to charging on-vehicle battery, then the power generating system of stroke-increasing electric automobile is in photovoltaic generation pattern.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to solve the problems of the technologies described above, the present invention proposes to increase photovoltaic generation unit in stroke-increasing electric automobile; When distance increasing unit does not work, the circuit of the multiplexing distance increasing unit of photovoltaic generation unit charges to on-vehicle battery, makes distance increasing unit be no longer extra load under non-increasing journey pattern.As shown in Figure 2, this stroke-increasing electric automobile structure is compared with the structure of Fig. 1, and difference is: also comprise photovoltaic panel 900 or 900 ', be connected with power conversion unit.Similar with Fig. 1, the distance increasing unit 100 in Fig. 2 is divided into two different pieces with identity function with dashed region, and the two can select a use.
Based on the stroke-increasing electric automobile structure shown in Fig. 2, according to one embodiment of present invention, a kind of power generating system for range-extended is provided.As shown in Figure 3, this system comprises:
(1) power conversion unit, is suitable for carrying out AC-DC conversion or DC-DC conversion to the electric energy that generator unit produces.Power conversion unit is three-phase voltage-type inverter (3-phase Voltage SourceInverter), and be expressed as VSI 301 in the drawings, S1, S2, S3, S4, S5, S6 are wherein binistors.In other embodiments of the present invention, above-mentioned power conversion unit also can be heterogeneous or the inverter style such as many level.
In the present invention, binistor comprises IGBT, MOSFET or SiC etc., belongs to semiconductor switch; Contactless switch is mechanical switch, and contactless switch also can be replaced by binistor.
(2) increase journey generator unit, be suitable for charging to the battery of electronlmobil.Increase journey generator unit and comprise combustion engine and electrical generator 3022.In the present embodiment, generator neutral point interface (neutralpoint) is provided to connect for circuit.
(3) photovoltaic generation unit, is suitable for charging to the battery of electronlmobil.Photovoltaic generation unit comprises a contactless switch K 3031 and photovoltaic panel (PV panel) 3032.
(4) control unit 304, couples with the contactless switch K3031 of power conversion unit and photovoltaic generation unit respectively, is suitable for controlling described power generating system and switches between photovoltaic generation pattern and increasing journey pattern.
Control unit 304 also couples with on-vehicle battery, detects battery charging state; When battery charging state (SOC) is lower than predetermined threshold value, is suitable for controlling described power generating system and is in increasing journey pattern, and when described battery charging state is higher than predetermined threshold value, is suitable for controlling described power generating system and is in photovoltaic generation pattern.
Circuit state under two patterns is described below:
(1) under increasing journey pattern, the plus end of battery connects the positive bus-bar of VSI 301, and the negative terminal of battery connects the negative busbar of VSI 301, and three of VSI 301 exchange end and are connected with the three-phase windings (i.e. stator inductance) of electrical generator 3022 respectively; The negative terminal of photovoltaic panel 3032 is connected with the negative busbar of VSI 301, and the anode of photovoltaic panel 3032 is connected with contactless switch K 3031, and contactless switch K 3031 disconnects, and photovoltaic panel 3032 is not in power generating system.
Now, the combustion engine (Fig. 3 is not shown) increasing journey generator unit is driven electrical generator 3022 to generate electricity and is charged by VSI 301 pairs of batteries; The control of VSI 301 adopts the control method of AC/DC changer.S1, S2, S3, S4, S5, S6 form AC/DC rectifier.
(2) under photovoltaic generation pattern, the plus end of battery connects the positive bus-bar of VSI 301, the negative terminal of battery connects the negative busbar of VSI 301, three of VSI 301 exchange end and are connected with the three-phase windings of electrical generator respectively, the neutral of electrical generator is connected with the anode of photovoltaic panel 3032 by contactless switch K 3031, and the negative terminal of photovoltaic panel 3032 is connected with the negative busbar of VSI 301.
Now, increase journey generator unit and do not work, photovoltaic panel 3032 is generated electricity and is charged by VSI 301 pairs of batteries; The control of VSI 301 adopts the control method of DC/DC changer.S1, S2, S3, S4, S5, S6 form BOOST circuit.
In addition, the threephase stator inductance of electrical generator 3022 is as the filter inductance of three BOOST circuit in parallel.After three circuit in parallel, current ripples can be reduced, to reduce ripple loss by the method for multiplex.This is equivalent to and reduces current ripples by improving switching frequency.It should be noted that, the stator inductance of some electrical generator is too little, at this moment will consider that extra series inductance is to reduce current ripples.
According to another embodiment of the invention, a kind of power generating system for range-extended is provided.As shown in Figure 4, compared with above-described embodiment, difference is not need in the present embodiment to provide generator neutral point interface; Further, photovoltaic generation unit comprises two contactless switch K14031 and K24032 and photovoltaic panel (PV panel) 4033.
Circuit state under two patterns is described below:
(1) under increasing journey pattern, the plus end of battery connects the positive bus-bar of VSI 301, and the negative terminal of battery connects the negative busbar of VSI 301; Contactless switch K14031 is communicated with, K24032 disconnects; Photovoltaic panel 4033 one end connects contactless switch K24032, the other end is connected with one of described stator inductance, this stator inductance exchanges the connection of one of end by three of contactless switch K14031 and VSI 301 again, and remaining two-phase stator inductance exchanges to hold with remaining two respectively and is connected.
Now, the internal combustion engine drive electrical generator 3022 increasing journey generator unit is generated electricity and is charged by VSI 301 pairs of batteries; The control of VSI 301 adopts the control method of AC/DC changer.S1, S2, S3, S4, S5, S6 form rectifier.
(2) under photovoltaic generation pattern, the plus end of battery connects the positive bus-bar of VSI 301, and the negative terminal of battery connects the negative busbar of VSI 301; Contactless switch K24032 is communicated with, K14031 disconnects, and one of photovoltaic panel 4033 one end three interchange ends passing through contactless switch K24032 and VSI 301 connect, and the other end is connected with one of described stator inductance; Remaining two-phase stator inductance exchanges to hold with remaining two respectively and is connected.
Now, control unit 304 control S1 and S2 gate pole turn off, control unit 304 sends pwm signal (pulse-width signal) and modulates S3, S4, S5, S6 composition H-bridge circuit, as the power conversion unit (voltage of photovoltaic panel is promoted to cell pressure) of photovoltaic generation unit.The description herein arranged VSI301 inside is only an embodiment, also can otherwise complete in other embodiments.Meanwhile, identical with a upper embodiment, electrical generator 3022 stator inductance is also used as filter inductance.
According to still another embodiment of the invention, a kind of power generating system for range-extended is provided.As shown in Figure 5, this system comprises:
(1) power conversion unit, the electric energy be suitable for generator unit produces carries out DC-DC conversion; Power conversion unit is booster converter (boost converter).Booster converter comprises inductance 5011, S15012 and S25013 (S1 and S2 is binistor).
(2) increase journey generator unit, be suitable for charging to the battery of electronlmobil; Increasing journey generator unit is fuel cell 502.
(3) photovoltaic generation unit, is suitable for charging to the battery of electronlmobil; Photovoltaic generation unit comprises contactless switch K15031, contactless switch K25032 and photovoltaic panel 5033 (PV panel).
(4) control unit, couples with photovoltaic generation unit, power conversion unit, is suitable for controlling described power generating system and switches between photovoltaic generation pattern and increasing journey pattern.
Control unit also couples with on-vehicle battery, detects battery charging state; When battery charging state is lower than predetermined threshold value, is suitable for controlling described power generating system and is in increasing journey pattern, and when described battery charging state is higher than predetermined threshold value, is suitable for controlling described power generating system and is in photovoltaic generation pattern.
Circuit state under two patterns is described below:
(1) under increasing journey pattern, contactless switch K15031 closes, and contactless switch K25032 disconnects, and fuel cell 502 is connected in power generating system; The plus end of fuel cell 502 is connected with one end of Boost inductance 5011 by the first contactless switch 5031 (i.e. K1), and the negative terminal of fuel cell 502 connects the negative terminal of battery; First binistor (S7) 5012 of Boost circuit is connected with the negative terminal of battery, and second switch device (i.e. S8) 5013 is connected with the plus end of battery.
(2) under photovoltaic generation pattern, contactless switch K25032 closes, and contactless switch K15031 disconnects, and photovoltaic panel 5033 is connected in system; Photovoltaic panel 5033 one end is connected with one end of Boost inductance 5011 by the second contactless switch 5032, and the other end is connected with the negative terminal of battery; First binistor 5012 of Boost circuit is connected with the negative terminal of battery, and second switch device 5013 is connected with the plus end of battery.
Under two kinds of patterns, control unit all controls Boost by the gate signal of master cock device S75012 and binistor S85013 and realizes DC/DC mapping function.Because the voltage of photovoltaic panel 5033 is not identical with the voltage of fuel cell 502, although so be all boosting inverter, its step-up ratio is not identical.
Performance improves to be estimated: for the electronic bus of common domestic commercial extended-range, under the prerequisite not starting distance increasing unit, calculates or estimates the performance increasing amount after introducing photovoltaic power generation apparatus.
(1) key parameter of vehicle:
Traction battery capacity is 50kWh;
Pure electric automobile continual mileage is 50km;
Overall dimensions of a car: 2.5 meters (wide), 12 meters (length) and 3 meters (height).
(2) average power of photovoltaic generation:
Current photovoltaic power density can reach 150W/m
2if photovoltaic panel is 2.5 meters wide, 7 meters long, additional photovoltaic generation average power is about 2.6kW.
(3) average powr output of battery:
Under 60 kilometers/hour of constant driving speeds, the average powr output calculating traction battery is about 60kW.
(4) performance improves estimation: based on above-mentioned calculating, under 60 kilometers/hour of constant driving speeds, and vehicle can obtain the excess power of the average out to 4.3% from PV input.
This is a very conservative estimation.First, the driving dutycycle (drivingduty cycle) of automobile is not considered.For the simple driving model that a driving dutycycle is 50%, average power of the present invention improves will factor two to 8.6%.
In addition, consider that photovoltaic panel absorbs heat thus reduces air-conditioning to use, increase combustion engine and weight of fuel in journey generator unit alleviate thus reduce vehicle load, average power of the present invention improves will be more remarkable, this means that the operating range of electronlmobil under non-increasing journey pattern can be greatly improved.
The present invention by introducing the multiplexing part or all of circuit (such as power conversion unit) of distance increasing unit of photovoltaic generation unit, photovoltaic generation unit in stroke-increasing electric automobile, on the one hand, achieve and solve distance increasing unit in prior art at lower cost under non-increasing journey pattern, be only equivalent to the problem of extra load; On the other hand, reduce the expense introducing photovoltaic generation unit, add the energy source of battery-driven car simultaneously.And because photovoltaic generation unit can to charging on-vehicle battery, so add the travelled distance of on-vehicle battery, volume, the weight of original distance increasing unit can reduce.
It should be noted that and understand, when not departing from the spirit and scope of the present invention required by accompanying claim, various amendment and improvement can be made to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not by the restriction of given any specific exemplary teachings.
Claims (10)
1. a power generating system for range-extended, comprising:
Increase journey generator unit (102; 102 '), be suitable for producing the electric energy charged to the battery of electronlmobil; With
Power conversion unit (101), is suitable for increasing journey generator unit (102; 102 ') electric energy produced carries out AC-DC conversion or DC-DC conversion;
It is characterized in that, described power generating system also comprises:
Vehicle-mounted photovoltaic generator unit (900; 900 '), be suitable for producing the electric energy charged to described battery; With
Control unit (304), is suitable for controlling described power generating system and switches, under described increasing journey pattern, by described increasing journey generator unit (102 between photovoltaic generation pattern and increasing journey pattern; 102 ') described battery is charged, under described photovoltaic generation pattern, by described vehicle-mounted photovoltaic generator unit (900; 900 ') described battery is charged;
Described power conversion unit (101) is also suitable for photovoltaic generation unit (900; 900 ') electric energy produced carries out DC-DC conversion.
2. power generating system for range-extended according to claim 1, is characterized in that, described control unit also couples with described battery, is suitable for detecting battery charging state;
When described battery charging state is lower than predetermined threshold value, described control unit is suitable for controlling described power generating system and is in increasing journey pattern;
When described battery charging state is higher than predetermined threshold value, described control unit is suitable for controlling described power generating system and is in photovoltaic generation pattern.
3. power generating system for range-extended according to claim 2, is characterized in that:
Described increasing journey generator unit comprises internal combustion engine and electrical generator, under described increasing journey pattern, starts described electrical generator charge to described battery by described internal combustion engine.
4. power generating system for range-extended according to claim 3, is characterized in that,
Described electrical generator provides neutral, and described power conversion unit is three-phase voltage-type inverter, and described vehicle-mounted photovoltaic generator unit comprises contactless switch and photovoltaic panel; Wherein, described three-phase voltage-type inverter has positive bus-bar, negative busbar and three interchange ends;
The positive and negative terminals of battery connects the positive and negative busbar of three-phase voltage-type inverter respectively; Three threephase stator inductance exchanging end and connect electrical generator respectively of three-phase voltage-type inverter; Photovoltaic panel is connected with contactless switch, and one end of circuit that series connection is formed is connected with the negative busbar of three-phase voltage-type inverter, and the other end is connected with described neutral, makes the threephase stator inductance of described electrical generator as three filter inductances in parallel thus.
5. power generating system for range-extended according to claim 3, is characterized in that:
Described power conversion unit is three-phase voltage-type inverter, and described vehicle-mounted photovoltaic generator unit comprises photovoltaic panel, the first contactless switch and the second contactless switch; Wherein, described three-phase voltage-type inverter has positive bus-bar, negative busbar and three interchange ends;
The positive and negative terminals of battery connects the positive and negative busbar of three-phase voltage-type inverter respectively; Photovoltaic panel is connected with the second contactless switch, the circuit that series connection is formed is in parallel with the first contactless switch, one end of circuit formed in parallel is connected with one of threephase stator inductance of electrical generator, the other end and three-phase voltage-type inverter three exchange one of to hold and are connected, and remaining two-phase stator inductance exchanges to hold with remaining two respectively and is connected; Make the threephase stator inductance of described electrical generator as three filter inductances in parallel thus.
6. the power generating system for range-extended according to claim 4 or 5, is characterized in that: under photovoltaic generation pattern, and described stator inductance is also suitable for the current filtering produced vehicle-mounted photovoltaic generator unit.
7. power generating system for range-extended according to claim 6, is characterized in that: described contactless switch is mechanical switch or semiconductor switch.
8. power generating system for range-extended according to claim 2, is characterized in that: described increasing journey generator unit comprises fuel cell.
9. power generating system for range-extended according to claim 8, is characterized in that:
Described power conversion unit is booster converter, and booster converter comprises inductance, the first binistor and second switch device, and vehicle-mounted photovoltaic generator unit comprises photovoltaic panel, the first contactless switch and the second contactless switch;
Fuel cell is connected with the first contactless switch, and photovoltaic panel is connected with the second contactless switch, and two circuit series parallel connections, form the first circuit; Battery and second switch devices in series, the circuit that series connection is formed is in parallel with the first binistor, forms second circuit; One end of first circuit is connected with one end of second circuit by the inductance of booster converter, and the other end of the first circuit is connected with the other end of second circuit.
10. power generating system for range-extended according to claim 9, is characterized in that:
Described binistor is semiconductor switch, comprises IGBT, MOSFET or SiC;
Described contactless switch is mechanical switch, or is replaced by binistor.
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