CN110474537A - A kind of three port DC/DC converters of fuel cell car - Google Patents
A kind of three port DC/DC converters of fuel cell car Download PDFInfo
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- CN110474537A CN110474537A CN201910757342.0A CN201910757342A CN110474537A CN 110474537 A CN110474537 A CN 110474537A CN 201910757342 A CN201910757342 A CN 201910757342A CN 110474537 A CN110474537 A CN 110474537A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
Abstract
A kind of three port DC/DC converters of fuel cell car, belong to fuel cells applications technical field.Solves the voltage mismatch problem between existing fuel cell car fuel cell and DC bus.One end of input capacitance Cin of the invention connects the anode of fuel cell Uin and the anode of diode D1 simultaneously, and the cathode of diode D1 connects one end and the switching tube Q2 grid of inductance L1 simultaneously；The cathode of the drain electrode connection diode D2 of switching tube Q2, the anode of diode D2 connect the anode of battery Ub and the cathode of diode D3 simultaneously；The other end of input capacitance Cin connects one end of fuel cell Uin cathode, the cathode of battery Ub, switching tube Q1 grid and output capacitance Co simultaneously；The anode of the drain electrode of connection switch pipe Q3 simultaneously of the other end of inductance L1, the drain electrode of switching tube Q1 and diode D4；The anode of the grid connection diode D3 of switching tube Q3；The other end of the cathode connection output capacitance Co of diode D4.The present invention is suitable for fuel cells applications technical field.
Description
Technical field
The invention belongs to fuel cells applications technical fields.
Background technique
With the popularization of new-energy automobile, fuel cell car is due to obstructed overheated machine process, not by Carnot cycle
Limitation, energy conversion efficiency is high, the incomparable advantage of internal-combustion engines vehicles such as environmental-friendly, and can keep in tradition simultaneously
Combustion engine automobile high-speed degree, over long distances traveling and the performances such as safety, comfortable, it is considered to be the cleaning of 21 century first choice, efficient transportation
Tool.It, must be in fuel electricity for the power demand for meeting vehicle since the output voltage range of fuel cell is wide, dynamic response is slow
DC/DC (DC/DC) converter is added between the output end and DC bus in pond, the function of the converter is to guarantee fuel electricity
Pond output voltage wide scope matches when changing with DC bus-bar voltage, while guaranteeing lesser ripple.In addition, fuel cell vapour
Vehicle DC/DC converter while meeting the functions such as high step-up ratio, high efficiency, cannot be considered in terms of reduce cost, improve stability with
The demand of power density.
The research of current fuel cell automobile DC/DC converter is concentrated mainly in isolated and non-isolated topology.Every
From formula topology because there is the presence of coupling transformer, cause its volume big, at high cost, relatively inefficient；Traditional is non-isolated
Boost topology (such as boost, buck-boost) is not able to satisfy although dynamic response is good, high-efficient, there are step-up ratio is low
The problem of demand of DC bus high voltage platform.
Summary of the invention
The purpose of the present invention is to solve the voltage matches between existing fuel cell car fuel cell and DC bus
With stability and inexpensive problem that can not be compatible, a kind of three port DC/DC converters of fuel cell car are proposed.
A kind of three port DC/DC converters of fuel cell car of the present invention,
Including input capacitance Cin, inductance L1, switching tube Q1, switching tube Q2, switching tube Q3, diode D1, diode D2,
Diode D3, diode D4 and output capacitance Co；
One end of input capacitance Cin connects the anode of fuel cell Uin and the anode of diode D1 simultaneously, diode D1's
Cathode connects one end of inductance L1 and the source electrode of switching tube Q2 simultaneously；The cathode of the drain electrode connection diode D2 of switching tube Q2, two
The anode of pole pipe D2 connects the anode of battery Ub and the cathode of diode D3 simultaneously；
The other end of input capacitance Cin connects fuel cell Uin cathode, the cathode of battery Ub, the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the other end of the input capacitance Cin is connection load port UOAnode；
The anode of the drain electrode of connection switch pipe Q3 simultaneously of the other end of inductance L1, the drain electrode of switching tube Q1 and diode D4；
The anode of the source electrode connection diode D3 of switching tube Q3；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is that connection is negative
Load port UOCathode.
The present invention does not have isolating device between fuel cell and DC bus, improves transducer effciency；It opens up three ports
It flutters structure fuel cell, battery and load are integrated on a converter, such a construction increases dynamical system power densities；
Reduce dynamical system volume；Make fuel cell more easily to charge the battery；And topological structure device of the present invention
Less, control is simple, occupies little space.
Detailed description of the invention
Fig. 1 is topological structure schematic diagram of the fuel cell car of the present invention with three port DC/DC converters；
Fig. 2 is topological structure schematic diagram of the fuel cell car with three port DC/DC converter dual input list output modes；
Fig. 3 is that fuel cell car is tied with the topology in three port DC/DC converter dual input list output mode ton periods
Structure schematic diagram；
Fig. 4 is topology of the fuel cell car in three port DC/DC converter dual input list output mode toff periods
Structural schematic diagram；
Fig. 5 is topological structure schematic diagram of the fuel cell car with three port DC/DC converter single-input double-output modes；
Fig. 6 is that fuel cell car is tied with the topology in three port DC/DC converter single-input double-output mode ton periods
Structure schematic diagram；
Fig. 7 is topology of the fuel cell car in three port DC/DC converter single-input double-output mode toff periods
Structural schematic diagram；
Fig. 8 is the schematic diagram of three port DC/DC converter specific embodiments of fuel cell car of the present invention.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching relevant art effect can fully understand and implement.This Shen
Please each feature in embodiment and embodiment, can be combined with each other under the premise of not colliding, be formed by technical solution
It is within the scope of the present invention.
Specific embodiment 1: illustrating present embodiment, a kind of fuel described in present embodiment below with reference to Fig. 1 to Fig. 7
Battery car three port DC/DC converters, including input capacitance Cin, inductance L1, switching tube Q1, switching tube Q2, switching tube
Q3, diode D1, diode D2, diode D3, diode D4 and output capacitance Co；
One end of input capacitance Cin connects the anode of fuel cell Uin and the anode of diode D1 simultaneously, diode D1's
Cathode connects one end of inductance L1 and the source electrode of switching tube Q2 simultaneously；The cathode of the drain electrode connection diode D2 of switching tube Q2, two
The anode of pole pipe D2 connects the anode of battery Ub and the cathode of diode D3 simultaneously；
The other end of input capacitance Cin connects fuel cell Uin cathode, the cathode of battery Ub, the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the other end of the input capacitance Cin is connection load port UOAnode；
The anode of the drain electrode of connection switch pipe Q3 simultaneously of the other end of inductance L1, the drain electrode of switching tube Q1 and diode D4；
The anode of the source electrode connection diode D3 of switching tube Q3；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is that connection is negative
Load port UOCathode.
Further, in present embodiment, fuel cell car is dual input list output mould with three port DC/DC converters
Equivalent circuit topological structure when formula is as shown in Figure 2；
Equivalent circuit when dual input list output mode includes: input capacitance Cin, inductance L1, diode D2, switching tube
Q1, output capacitance Co and diode D4；
One end of input capacitance Cin connects the anode of fuel cell Uin and the anode of diode D1 simultaneously, diode D1's
Cathode connects one end of inductance L1 and the cathode of diode D2 simultaneously；The anode of the anode connection battery Ub of diode D2；
The other end of input capacitance Cin connects fuel cell Uin cathode, the cathode of battery Ub, the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the end of input capacitance Cin is connection load port UOAnode；
The other end while the drain electrode of connection switch pipe Q1 and the anode of diode D4 of inductance L1；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is that connection is negative
Load port UOCathode.
T when fuel cell car with three port DC/DC converters is dual input list output mode, in a PWM cycleon
Circuit topological structure in period is as shown in Figure 3；When switching tube Q1 is connected, fuel cell Uin and battery Ub are inductance together
L1 charging, output capacitance Co provide energy to load.
When fuel cell car with three port DC/DC converters is dual input list output mode, in a PWM cycle
toffIn period, circuit topological structure it is as shown in Figure 4；Guan Guanguan Q1 is disconnected, fuel cell Uin and battery Ub respectively with inductance
Series connection, powers to the load, while charging to output capacitance Co.
There are two charge circuits in dual input list output mode, fuel cell is connected with inductance as a wherein circuit
Input power, the input power that battery is connected with inductance as another circuit, this two circuits are mentioned to load-side together
It charges for energy, while for output capacitance.
Further, in present embodiment, fuel cell car is single-input double-output mould with three port DC/DC converters
Equivalent circuit when formula as shown in figure 5,
Equivalent circuit when single-input double-output mode include: input capacitance Cin, diode D1, inductance L, switching tube Q1,
Switching tube Q3, diode D3, diode D4 and output capacitance Co；
One end of input capacitance Cin connects the anode of fuel cell Uin and the anode of diode D1 simultaneously, diode D1's
One end of cathode connection inductance L1；
The anode of the drain electrode of connection switch pipe Q3 simultaneously of the other end of inductance L1, the drain electrode of switching tube Q1 and diode D4；
The anode of the source electrode connection diode D3 of switching tube Q3；The anode of the cathode connection battery Ub of diode D3；
The other end of input capacitance Cin connects fuel cell Uin cathode, the cathode of battery Ub, the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the other end of input capacitance Cin is connection load port UOAnode；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is that connection is negative
Load port UOCathode.
T when fuel cell car with three port DC/DC converters is single-input double-output mode, in a PWM cycleon
In period, circuit topological structure it is as shown in Figure 6；Switching tube Q1 conducting, switching tube Q3 shutdown, fuel cell Uin pass through switch
Pipe Q1 charges to inductance L1, output capacitance COEnergy is provided to load.
When fuel cell car with three port DC/DC converters is single-input double-output mode, in a PWM cycle
toffIn period, circuit topological structure it is as shown in Figure 7；Switching tube Q1 shutdown, switching tube Q3 conducting, fuel cell Uin and inductance
L1 series connection is respectively battery and load provides energy, and is capacitor COCharging, the power as required for load-side are less than combustion
Expect cell output, therefore the extra part of electricity of fuel cell output is to charge the battery, exports energy to load-side
While amount, to charge the battery.
Illustrate present embodiment in conjunction with Fig. 1 to Fig. 7, Uo of the Fig. 1 into Fig. 7 is the output end of three port DC/DC converters
Mouthful or load end, there are three ports, the respectively port of fuel cell Uin for the tool of topological structure described in present embodiment, store
The port battery Ub and output port Uo (load end), three port DC/DC converters described in present embodiment can be by fuel electricity
Pond, battery Ub and output end Uo (load end) are incorporated into a circuit, improve dynamical system power density；In addition, fuel
Battery Uin, diode D1, switching tube Q1, inductance L1, output capacitance Co, output capacitance Uo (load end) constitute booster circuit, energy
It is enough that fuel cell output voltage boosts, to meet the power demand of output end；Battery Ub, switching tube Q2, switching tube
Q3, diode D2, diode D3 are battery Ub branch, and when battery Ub discharges, switching tube Q3 is closed, battery Ub, switch
Pipe Q2, diode D2, inductance L1, switching tube Q1, output capacitance Co etc. are also booster circuit, and the output voltage of battery is increased
It powers afterwards to load-side, when battery Ub is electrically charged, switching tube Q2 shutdown, battery Ub is equivalent to a load, fuel electricity
Pond powers to load port Uo and battery Ub simultaneously, at this point, fuel cell Uin, inductance L1, switching tube Q3, battery Ub phase
It is connected when in a switching tube Q1 switching tube Q3 complementation, when Q1 is connected, fuel cell Uin powers to inductance L1, and switching tube Q1 is closed
When disconnected switching tube Q3 conducting, fuel cell Uin connects with inductance L1 is used as power supply, while to load-side port Uo and battery side
Ub power supply.
Specific embodiment 2: described in embodiment is described with reference to Fig.8, present embodiment and specific embodiment one
A kind of fuel cell car is distinguished as with three port DC/DC converters, further includes control circuit, and the control circuit is for controlling
Switching tube Q1 processed, switching tube Q2 and switching tube Q3's opens or closes.The control circuit include protection circuit 1, dsp system 2,
Voltage sensor 3 and current sensor 4；
The control circuit includes protection circuit 1, dsp system 2, voltage sensor 3 and current sensor 4；
Protection circuit 1 is used to receive the switching tube driving signal of the transmission of dsp system 2, and to dsp system 2 and disconnecting switch
Pipe carries out electrical isolation；Received switching tube driving signal is sent to the grid of switching tube Q1, switching tube Q2 by protection circuit 1
The grid of grid and switching tube Q3, switch tube Q1, switching tube Q2 and switching tube Q3 are driven；
The current signal that dsp system 2 is used to receive the voltage signal of the output of voltage sensor 3 and current sensor 4 exports,
The output power of fuel cell is calculated, while receiving target voltage and target current signal, calculating target output, (vehicle needs
Seek power), the output power of fuel cell and target output (vehicle demand power) are compared, according to power contrast
As a result, generating three tunnel PWM waves, tri- tunnel PWM wave of Bing Jiang is sent to protection circuit 1 as driving signal；
Voltage sensor 3 is for the output voltage of real-time detection fuel cell and the output voltage of DC/DC converter；And it will
The voltage signal of detection is sent to dsp system 2；
Current sensor 4 is used for the output electric current of real-time detection fuel cell, and the current signal of acquisition is sent to DSP
System 2.
According to power contrast as a result, generating three tunnel PWM waves method particularly includes: the input voltage at fuel cell end with
Input current obtains fuel cell output power (calculating power using P=UI in DSP), and obtaining vehicle from entire car controller needs
Power is sought, is sent into dsp system 2, compared with the fuel cell output power being calculated carries out size, when fuel cell exports
When power is greater than target output (vehicle demand power), the driving signal PWM2 duty ratio of 2 control switch pipe Q2 of dsp system
It is 0, according to the size of target voltage size regulating switch pipe Q1 driving signal PWM1 duty ratio, switch tube Q1 driving signal
PWM1 negates to obtain the duty ratio of PWM3, and Q1 is turned off when Q3 is connected, and Q1 is connected when Q3 is turned off.(respective figure 5,6,7)
When target output (vehicle demand power) is greater than the output power of fuel cell, the control output of dsp system 2
The duty ratio of driving signal PWM2 of switching tube Q2 be 1, the duty ratio of the driving signal PWM3 of switching tube Q3 is 0, according to mesh
Mark the size (respective figure 2,3,4) of the driving signal PWM1 duty ratio of output voltage regulating switch pipe Q1；Dsp system is logical simultaneously
The output voltage and output electric current for crossing DC/DC converter, judge whether the voltage and current of DC/DC converter reality output meets
Target voltage and electric current, and then power is calculated according to the voltage and current of actual measurement, to adjust three tunnel driving signals, the drive
Dynamic signal is for respectively driving three switching tubes Q1, Q2 and Q3；Realize the adjusting to the output power of DC/DC converter.
Three port DC/DC converters of fuel cell car of the present invention in use, determine fuel cell first
Size relation between power and demand power, and then determine that the work of three Port Translation devices is still double in single-input double-output mode
Input single output mode；If dual input list output mode, switching tube Q2 is made to remain that opening state, switching tube Q3 are protected always
Hold off state；Controller uses DSP, and voltage sensor real-time detection fuel cell input voltage is defeated with DC/DC converter
Voltage out, detection signal send DSP to by the converter that DSP is carried, and DSP generates the identical PWM wave in three tunnels, three tunnel
For PWM wave for controlling three switching tubes, three switching tubes function is different, and Q2 and Q3 are that control battery is electrically charged or locates
In discharge condition, the duty ratio of Q1 is to control the size of step-up ratio, and three switching tubes are not to open simultaneously.Compare demand power
After the size relation of (target power) and fuel cell output power, when battery is in discharge condition (output of dual input list),
Q2 opens (duty ratio 1) always at this time, is equivalent to conducting wire, and Q3 turns off (duty ratio 0) always, is equivalent to open circuit, then root
Control Q1 duty ratio size according to required output voltage size (between 0 to 1)；When battery is in charging (single-input double-output)
State, Q2 are turned off always, are equivalent to open circuit, are then controlled according to required output voltage size Q1 duty ratio (between 0 to 1),
And the relationship of Q3 conducting complementary with Q1 is kept always.Conducting and pass using dedicated switching tube isolation drive control switch pipe
It is disconnected, to realize the effect for stablizing boosting to fuel cell output voltage.If single-input double-output mode, switching tube Q2 is made to begin
Be held off eventually, it is identical as the output control of dual input list, when Q1, which opens Q3, to be turned off, fuel cell to induction charging, when
Q3 is when opening for Q1 shutdown, and fuel cell and inductance are that load provides energy, while to battery charging.Specific embodiment is as schemed
Shown in 8.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (5)
1. a kind of three port DC/DC converters of fuel cell car, which is characterized in that including input capacitance Cin, inductance L1,
Switching tube Q1, switching tube Q2, switching tube Q3, diode D1, diode D2, diode D3, diode D4 and output capacitance Co；
One end of input capacitance Cin connects the anode of fuel cell (Uin) and the anode of diode D1 simultaneously, and diode D1's is negative
Pole connects one end of inductance L1 and the source electrode of switching tube Q2 simultaneously；The cathode of the drain electrode connection diode D2 of switching tube Q2, two poles
The anode of pipe D2 connects the anode of battery (Ub) and the cathode of diode D3 simultaneously；
The other end of input capacitance Cin connects fuel cell (Uin) cathode, the cathode of battery (Ub), the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the other end of the input capacitance Cin is connection load port UOAnode；
The anode of the drain electrode of connection switch pipe Q3 simultaneously of the other end of inductance L1, the drain electrode of switching tube Q1 and diode D4；
The anode of the source electrode connection diode D3 of switching tube Q3；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is connection load end
Mouth UOCathode.
2. three port DC/DC converters of a kind of fuel cell car according to claim 1, which is characterized in that fuel electricity
Equivalent circuit when three port DC/DC converter dual input list output mode of pond automobile include: input capacitance Cin, inductance L1,
Diode D2, switching tube Q1, output capacitance Co and diode D4；
One end of input capacitance Cin connects the anode of fuel cell (Uin) and the anode of diode D1 simultaneously, and diode D1's is negative
Pole connects one end of inductance L1 and the cathode of diode D2 simultaneously；The anode of anode connection battery (Ub) of diode D2；
The other end of input capacitance Cin connects fuel cell (Uin) cathode, the cathode of battery (Ub), the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the end of input capacitance Cin is connection load port UOAnode；
The other end while the drain electrode of connection switch pipe Q1 and the anode of diode D4 of inductance L1；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is connection load end
Mouth UOCathode.
3. a kind of three port DC/DC converters of fuel cell car according to claim 1 or claim 2, which is characterized in that fuel
Equivalent circuit when three port DC/DC converter single-input double-output mode of battery car includes: input capacitance Cin, two poles
Pipe D1, inductance L, switching tube Q1, switching tube Q3, diode D3, diode D4 and output capacitance Co；One end of input capacitance Cin
The anode of fuel cell (Uin) and the anode of diode D1, one end of the cathode connection inductance L1 of diode D1 are connected simultaneously；
The anode of the drain electrode of connection switch pipe Q3 simultaneously of the other end of inductance L1, the drain electrode of switching tube Q1 and diode D4；
The anode of the source electrode connection diode D3 of switching tube Q3；The anode of cathode connection battery (Ub) of diode D3；
The other end of input capacitance Cin connects fuel cell (Uin) cathode, the cathode of battery (Ub), the source switching tube Q1 simultaneously
One end of pole and output capacitance Co；And the other end of input capacitance Cin is connection load port UOAnode；
The other end of the cathode connection output capacitance Co of diode D4, and the other end of the output capacitance Co is connection load end
Mouth UOCathode.
4. a kind of three port DC/DC converters of fuel cell car according to claim 1 or claim 2, which is characterized in that also wrap
Include control circuit, the control circuit is opened or closed for control switch pipe Q1, switching tube Q2 and switching tube Q3's.
5. three port DC/DC converters of a kind of fuel cell car according to claim 4, which is characterized in that the control
Circuit processed includes protection circuit (1), dsp system (2), voltage sensor (3) and current sensor (4)；
Protection circuit (1) is used to receive the switching tube driving signal of dsp system (2) transmission, and to dsp system (2) and keeps apart
It closes pipe and carries out electrical isolation；Protect circuit (1) that received switching tube driving signal is sent to the grid of switching tube Q1, switching tube
The grid of Q2 and the grid of switching tube Q3, switch tube Q1, switching tube Q2 and switching tube Q3 are driven；
Dsp system (2) is used to receive the voltage signal of voltage sensor (3) output and the electric current letter of current sensor (4) output
Number, the output power of fuel cell is calculated, while receiving target voltage and target current signal, calculates target output, it will
The output power and target output of fuel cell compare, according to power contrast as a result, obtaining three tunnel PWM waves, and will
Three tunnel PWM waves are sent to protection circuit (1) as driving signal；
Voltage sensor (3) is for the output voltage of real-time detection fuel cell and the output voltage of DC/DC converter；And it will inspection
The voltage signal of survey is sent to dsp system (2)；
Current sensor (4) is used for the output electric current of real-time detection fuel cell, and the current signal of acquisition is sent to DSP system
It unites (2).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113734076A (en) * | 2020-05-29 | 2021-12-03 | 未势能源科技有限公司 | Power supply system and vehicle with same |
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| CN112787511B (en) * | 2020-12-31 | 2022-11-01 | 深圳市核达中远通电源技术股份有限公司 | Dual-input hydrogen fuel cell DC/DC converter and control method thereof |
| CN113635787A (en) * | 2021-08-13 | 2021-11-12 | 哈尔滨理工大学 | Hybrid electric vehicle power supply system based on three-port DC/DC converter |
| CN113635787B (en) * | 2021-08-13 | 2023-08-15 | 哈尔滨理工大学 | Hybrid electric vehicle power supply system based on three-port DC/DC converter |
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Application publication date: 20191119 |