CN111130172A - Vehicle charging system and electric vehicle - Google Patents
Vehicle charging system and electric vehicle Download PDFInfo
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- CN111130172A CN111130172A CN201911340991.7A CN201911340991A CN111130172A CN 111130172 A CN111130172 A CN 111130172A CN 201911340991 A CN201911340991 A CN 201911340991A CN 111130172 A CN111130172 A CN 111130172A
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- circuit
- fuel cell
- storage battery
- converter
- charging system
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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
- H02M3/1584—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 with a plurality of power processing stages connected in parallel
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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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
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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
- H02M3/1584—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 with a plurality of power processing stages connected in parallel
- H02M3/1586—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 with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a vehicle charging system, wherein the system consists of a controller, a DC/DC converter, a fuel cell and a storage battery, when the system is started, the storage battery receives a control signal of the controller, and the fuel cell is charged through the DC/DC converter; when the fuel cell operates normally, the fuel cell receives a control signal of the controller, the storage battery is charged through the DC/DC converter, and the storage battery is charged in a customized manner; the DC/DC converter comprises a front-stage circuit and a rear-stage circuit, wherein the front-stage circuit is formed by connecting a bidirectional buck-boost three-phase interleaved circuit in parallel, and the rear-stage circuit is formed by a unidirectional phase-shifted full-bridge DC/DC circuit. The invention solves the starting problem of the fuel cell, solves the charging problem of the storage battery, improves the generated impact problem, provides control logics adopted in two different stages aiming at a two-stage transformation structure, reduces impact and overshoot, and can operate in a constant voltage mode and a constant current mode.
Description
Technical Field
The invention belongs to the technical field of vehicle charging, and particularly relates to a multi-mode direct-current converter with high power, low voltage, high current and high boost ratio.
Background
The change of energy production and utilization modes is a great progress of human society, and great benefits are brought to descendants of people. With the gradual reduction of global non-renewable energy and the increasing increase of environmental pollution, the development of new energy has attracted people's attention and entered into research. Compared with the traditional automobile power generation system mainly based on fuel oil, the new energy power generation system is more environment-friendly, accords with the sustainable development path, and is lower in cost in the long run.
With the gradual progress of semiconductor power device manufacturing technology and materials, the continuous development and updating of control technology promote the gradual popularization of electric vehicles.
At present, most of new energy vehicles utilize a direct current charging pile to charge a storage battery, and because the capacity of the battery is limited and the endurance mileage is limited, a vehicle charging system and an electric vehicle are needed to be provided to overcome the defects of the prior art.
Disclosure of Invention
The invention finds that the fuel cell has the characteristics of generally low output voltage, wider output range of the output voltage and high requirement on current ripple. When the traditional converter is started, great voltage or current impact exists on a power device, the device is easily damaged after a long time, and the reliability of a circuit is reduced. In a high-power application occasion, the converter has large loss and low efficiency, the problems of reverse recovery of a diode, leakage inductance and junction capacitance resonance exist, and the problems of severe operating environment and incomplete protection function of a power device also exist. And the fuel cell also needs a certain energy supply to establish a normal working mode, and the existing charging mode is not perfect.
The invention aims to provide a vehicle charging system which has the functions that a normal working mode of a fuel cell is established by charging a storage battery at the initial stage, then a lower direct current voltage with wide variation generated by the fuel cell is converted into a high-voltage direct current through a converter to be used as an auxiliary power supply system for charging the storage battery, and the requirement of high power grade is met.
In order to achieve the purpose, the charging system for the vehicle comprises a controller, a DC/DC converter, a fuel cell and a storage battery, wherein when the system is started, the storage battery receives a control signal of the controller, and the fuel cell is charged through the DC/DC converter; when the fuel cell operates normally, the fuel cell receives a control signal of the controller, the storage battery is charged through the DC/DC converter, and the storage battery stops supplying power; the DC/DC converter comprises a front-stage circuit and a rear-stage circuit, wherein the front-stage circuit is formed by connecting a bidirectional buck-boost three-phase interleaved circuit in parallel, and the rear-stage circuit is formed by a unidirectional phase-shifted full-bridge DC/DC circuit. The charging system firstly charges the fuel cell from the storage battery, starts to change the direction after the fuel cell establishes a normal working mode, generates electricity by fuel, realizes the charging of the storage battery and is used as an auxiliary energy system of the automobile. The system adopts a scheme of series resistance starting, the impact effect during starting is relieved, the front-stage circuit adopts a three-phase staggered circuit, high-power boosting can be realized, the stress borne by a switch device is reduced, the ripple wave of input current is greatly reduced, the square wave inverter circuit of the rear-stage circuit adopts phase-shifting control, soft switching can be realized, and the loss of the system is effectively reduced.
As an improvement of the invention, the front-stage single circuit is formed by connecting a bidirectional buck-boost three-phase staggered circuit in parallel, the front-stage circuit comprises six IGBTs with freewheeling diodes, three inductors and two capacitors, wherein 3 IGBTs S1, S3 and S5 are respectively connected with the IGBTs S2, S4 and S6 in series.
As an improvement of the invention, the post-stage circuit comprises a unidirectional phase-shifted full-bridge DC/DC circuit, the post-stage circuit comprises an A bridge arm and a B bridge arm which are connected in parallel, wherein the A bridge arm and the B bridge arm are formed by connecting a first IGBT and a second IGBT in series, and a high-frequency transformer and a DC blocking capacitor are connected in series at the joint of each bridge arm.
As an improvement of the invention, the post-stage circuit also comprises a full-bridge rectification circuit, wherein the full-bridge rectification circuit consists of four fast recovery diodes and two saturated inductors, each bridge arm is connected with one saturated inductor in series, and the rectification circuit adopts the saturated inductors in series, so that the problems of reverse recovery of the diodes and resonance of leakage inductance and junction capacitance are effectively relieved.
As an improvement of the invention, the method is characterized in that: and a filter circuit is also arranged between the rear-stage circuit and the storage battery, wherein the filter circuit consists of an inductor and a capacitor.
As an improvement of the invention, the controller comprises a PWM driving unit, a DSPL, a dual-port RAM, a DSPR, a signal acquisition and protection unit and a man-machine interface, wherein the DSPL is respectively connected with the PWM driving unit and the signal acquisition and protection unit; the DSPL, the double-port RAM, the DSPR and the man-machine interface are sequentially connected.
As an improvement of the present invention, a soft start circuit is further disposed between the DC \ DC converter and the controller, and the soft start circuit is composed of control relays SW1, SW2, and SW3, and is used for controlling the on and off of the preceding circuit and the subsequent circuit.
An electric vehicle comprises a motor, a whole vehicle ECU, a vehicle body and the vehicle charging system.
Compared with the prior art, the invention has the following beneficial effects:
the high-power converter not only solves the starting problem of the fuel cell, but also solves the charging problem of the storage battery, improves the system function by utilizing a topological structure, improves the generated impact problem, provides control logics adopted in two different stages aiming at a two-stage conversion structure, adds a slow starting control strategy in the normal process from the starting of the system to the operation of the system, reduces the impact and overshoot, and can operate in a constant voltage mode and a constant current mode.
The invention has two working modes of constant voltage and constant current, can carry out seamless switching among the working modes and provides stable and reliable direct current with extremely low ripple for the storage battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of a charging system for a vehicle according to the present invention.
Fig. 2 is a schematic block diagram of the present invention for charging a battery to start a fuel cell.
FIG. 3 is a schematic block diagram of the fuel cell of the present invention generating electricity to charge a battery.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the present invention relates to a charging system for a vehicle, wherein a bidirectional DC/DC converter comprises a power pre-stage circuit (interleaved circuit), a post-stage circuit (full bridge circuit), a filter circuit, a controller, a fuel cell, a battery, and a soft start circuit.
The alternating circuit is composed of three-phase alternating buck-boost circuits, each phase is composed of two IGBTs with freewheeling diodes in series connection and an inductor, the three phases are connected in parallel, and the rear output is connected with an intermediate support electrolytic capacitor. The full-bridge circuit is composed of A, B two bridge arms, each bridge arm is composed of a first IGBT and a second IGBT (namely 1A and 1B), and a second IGBT which are connected in series, the joint of the A bridge arm IGBT is connected to the same-name end of a high-frequency transformer, the other end of the transformer is connected to one end of a series-connection blocking capacitor, one end of the blocking capacitor is connected to the joint of the B bridge arm IGBT, the high-frequency transformer boosts the voltage, and then the bridge circuit is connected to the rear of the bridge circuit, the full-bridge circuit is divided into two bridge arms, each bridge arm is composed of two diodes (namely D1 and D2, D3 and D4) which are connected in series, a saturated inductor Lm1 and Lm 563 are connected in series, high-frequency alternating current is rectified to be direct current and then passes through a filter, the filter is composed of an inductor L35. A saturable reactor is connected in series in the full-bridge rectifying circuit to reduce voltage spikes. The characteristics of the circuit are well improved, and meanwhile, components are protected.
The controller comprises a PWM (pulse width modulation) driving unit, a DSPL (digital signal processor), a double-port RAM (random access memory), a DSPR (digital signal processing), a signal acquisition and protection unit and a man-machine interface, wherein the DSPL is respectively connected with the PWM driving unit and the signal acquisition and protection unit; the DSPL, the double-port RAM, the DSPR and the man-machine interface are sequentially connected. The signal acquisition and protection unit filters the acquired analog quantity and then inputs the analog quantity into the DSP, the DSPL carries out A/D conversion on the analog signal and then transmits the analog signal to the double-port RAM, the DSPR reads the acquired data through the double-port RAM, the conduction duty ratios of seven IGBTs in the power conversion circuit are calculated according to the data and write the duty ratios into the double-port RAM, and the DSP reads the duty ratio data of the IGBTs through the double-port RAM and controls the on-off of the seven IGBTs in the power conversion circuit through the PWM driving unit. DSPL transmits data to the upper computer for display in real time through serial port communication, and receives control commands sent by the upper computer.
The signal acquisition and protection unit is locally mounted on the fuel cell, the interleaved inductors L1, L2, L3, the intermediate capacitor C1, the filter circuit inductor L4 and the output capacitor C3 and is used for controlling the voltage value and the current value of the fuel cell, the current values of the inductors L1, L2 and L3, the voltage value of the intermediate support capacitor C1, the current value of the inductor L4 and the voltage value of the output capacitor C3. The signal acquisition and processing unit comprises a Hall voltage sensor, a Hall current sensor and a second-order low-pass active filter circuit. The protection circuit comprises a current and voltage acquisition protection circuit and an IGBT driving protection circuit, and the protection circuit transmits a protection signal to the DSPL to trigger corresponding interrupt protection.
The bidirectional DC/DC converter is provided with saturable reactors Lm1 and Lm2 connected in series to D1 and D3 respectively to reduce voltage spike. By utilizing the characteristics of the saturable reactor, when the diode bears the reverse voltage and enters a reverse recovery stage, the saturable reactor connected in series is desaturated, and the suppression of the reverse recovery current, the leakage inductance and the junction capacitance resonance is realized. When the diode is switched on, the saturable reactor enters a saturation state, and the normal work of the circuit is not influenced. The characteristics of the circuit are well improved, and meanwhile, components are protected.
As shown in fig. 2, the input source of the bidirectional DC/DC converter is a fuel cell, and firstly, the system charges the storage battery, and the relay SW1, SW2 and SW3 are controlled to be turned on, so that the energy transfer is ensured only by the staggered circuit, and the full-bridge circuit does not work.
The bidirectional buck-boost three-phase interleaved circuit is controlled to operate in a buck mode, namely, the fuel cell is charged in a slow starting mode by controlling IGBT modules S2, S4 and S6 and utilizing the freewheeling diodes of the IGBT modules S1, S3 and S5, so that the impact of large current on the components at the moment of starting is avoided, the components are protected, and after the power generation mode of the fuel cell is established, the SW3 is disconnected, and the stage is ended.
As shown in fig. 3, the bidirectional DC/DC converter enters a fuel cell power generation mode after the reverse charging is completed. Both the interleaved circuit and the full bridge circuit participate in the energy transfer process.
By controlling the bidirectional buck-boost three-phase interleaved circuit to operate in the boost mode, namely by controlling the IGBT modules S1, S3 and S5 and utilizing the follow-up diodes of the IGBT modules S2, S4 and S6, after the system self-checks are normal, the three-phase interleaved boost module starts to work, and after a period of time delay, the phase-shifted full-bridge conversion module starts to work to output stable direct-current voltage.
The bidirectional DC/DC converter is used for charging a storage battery, the three-phase boost staggered circuit works in a double closed-loop mode, the outer ring is intermediate supporting capacitor voltage, the inner ring is current of each phase of the staggered circuit, incremental PI algorithm control is applied, three-phase duty ratio is output, the phase interval of each phase is 120 degrees, the boost output supporting capacitor is supplied to a rear-stage circuit as a constant voltage value, the three-phase staggered circuit is adopted, input current ripples can be effectively improved, current stress of components is reduced, and starting impact is well improved. The full-bridge circuit adopts phase-shifting control, each phase of bridge arm IGBT is in a complementary mode and is a given duty ratio, dead time is reserved for each phase of bridge arm, soft switching is realized by controlling phase differences between the bridge arms 1A and 2B, and between the bridge arms 1B and 2A, loss of components is reduced, and the later stage adopts an incremental PI algorithm to control output voltage or current to generate phase differences to be supplied to the IGBT 1B and IGBT 2B.
The charging system firstly charges the fuel cell from the storage battery, starts to change the direction after the fuel cell establishes a normal working mode, generates power by fuel, realizes the charging of the storage battery and is used as an auxiliary energy system of the automobile. The system adopts a scheme of series resistance starting, the impact effect during starting is relieved, the front stage adopts a three-phase staggered circuit, high-power boosting can be realized, the stress borne by a switching device is reduced, the input current ripple is greatly reduced, the rear stage square wave inverter circuit adopts phase-shifting control, soft switching can be realized, and the loss of the system is effectively reduced. The rectifying circuit adopts series saturated inductance, and effectively relieves the problems of reverse recovery of the diode and resonance of leakage inductance and junction capacitance. The system has two working modes of constant voltage and constant current, can carry out seamless switching among the working modes, and provides stable and reliable direct current with extremely low ripple for the storage battery.
The invention also provides an electric vehicle adopting the charging system.
The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made in accordance with the spirit of the present invention.
Claims (8)
1. A charging system for vehicle is composed of controller, DC/DC converter, fuel cell and accumulator,
when the system is started, the storage battery receives a control signal of the controller and charges the fuel cell through the DC/DC converter;
when the fuel cell runs normally, the fuel cell receives a control signal of the controller, the storage battery is charged through the DC/DC converter, and the storage battery stops supplying power;
the DC/DC converter comprises a front-stage circuit and a rear-stage circuit, wherein the front-stage circuit is formed by connecting a bidirectional buck-boost three-phase interleaved circuit in parallel, and the rear-stage circuit is formed by a unidirectional phase-shifted full-bridge DC/DC circuit.
2. The charging system for a vehicle according to claim 1, wherein: the front-stage single circuit is formed by connecting a bidirectional buck-boost three-phase interleaved circuit in parallel, the front-stage circuit is formed by six IGBTs with freewheeling diodes, three inductors and two capacitors, wherein 3 IGBTs S1, S3 and S5 are respectively connected with the IGBTs S2, S4 and S6 in series.
3. The charging system for a vehicle according to claim 1, wherein: the post-stage circuit comprises a unidirectional phase-shifted full-bridge DC/DC circuit, the post-stage circuit comprises an A bridge arm and a B bridge arm which are connected in parallel, the A bridge arm and the B bridge arm are formed by connecting a first IGBT and a second IGBT in series, and a high-frequency transformer and a blocking capacitor are connected in series at the joint of each bridge arm.
4. The charging system for vehicle as set forth in claim 3, wherein: the post-stage circuit also comprises a full-bridge rectifying circuit, wherein the full-bridge rectifying circuit consists of four fast recovery diodes and two saturated inductors, and each bridge arm is connected with one saturated inductor in series.
5. The charging system for vehicles according to claim 1 or 4, characterized in that: and a filter circuit is also arranged between the rear-stage circuit and the storage battery, wherein the filter circuit consists of an inductor and a capacitor.
6. The charging system for a vehicle according to claim 1, wherein: the controller comprises a PWM driving unit, a DSPL, a double-port RAM, a DSPR, a signal acquisition and protection unit and a man-machine interface, wherein the DSPL is respectively connected with the PWM driving unit and the signal acquisition and protection unit; the DSPL, the double-port RAM, the DSPR and the man-machine interface are sequentially connected.
7. The charging system for a vehicle according to claim 1, wherein: a soft start circuit is further arranged between the DC \ DC converter and the controller, and the soft start circuit consists of control relays SW1, SW2 and SW3 and is used for controlling the opening and closing of a front-stage circuit and a subsequent circuit.
8. The utility model provides an electric motor car, includes motor, whole car ECU, automobile body, its characterized in that: the electric vehicle comprises the vehicle charging system as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340991.7A CN111130172A (en) | 2019-12-23 | 2019-12-23 | Vehicle charging system and electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340991.7A CN111130172A (en) | 2019-12-23 | 2019-12-23 | Vehicle charging system and electric vehicle |
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| CN111130172A true CN111130172A (en) | 2020-05-08 |
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| CN201911340991.7A Pending CN111130172A (en) | 2019-12-23 | 2019-12-23 | Vehicle charging system and electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260543A (en) * | 2020-09-19 | 2021-01-22 | 许继电源有限公司 | High-gain high-frequency isolation bidirectional cascade DC/DC converter and control method thereof |
| CN112615535A (en) * | 2020-11-30 | 2021-04-06 | 北京交通大学 | Soft start circuit for interleaved DC converter and control method thereof |
| CN114590140A (en) * | 2022-03-30 | 2022-06-07 | 华人运通(江苏)技术有限公司 | Charge-discharge management system of electric automobile |
| CN115765488A (en) * | 2022-12-16 | 2023-03-07 | 杭州锐健医疗科技有限公司 | Radio frequency ablation power supply circuit and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785707A (en) * | 2005-12-09 | 2006-06-14 | 清华大学 | Fuel battery automobile mixed power system using super capacity as auxiliary power device |
| CN107272445A (en) * | 2017-07-17 | 2017-10-20 | 天津理工大学 | A kind of electric automobile charge/discharge control method based on automatic disturbance rejection controller |
| CN109889047A (en) * | 2019-01-31 | 2019-06-14 | 南京航空航天大学 | A kind of two-stage type DC-DC converter suitable for wide input wide output voltage range |
| CN110116637A (en) * | 2019-05-10 | 2019-08-13 | 湖南科技大学 | Shield electric locomotive hybrid power power supply based on fuel cell and super capacitor |
| CN110429719A (en) * | 2019-09-05 | 2019-11-08 | 哈尔滨工业大学 | Efficient radio energy Transmission system based on crisscross parallel Boost |
-
2019
- 2019-12-23 CN CN201911340991.7A patent/CN111130172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785707A (en) * | 2005-12-09 | 2006-06-14 | 清华大学 | Fuel battery automobile mixed power system using super capacity as auxiliary power device |
| CN107272445A (en) * | 2017-07-17 | 2017-10-20 | 天津理工大学 | A kind of electric automobile charge/discharge control method based on automatic disturbance rejection controller |
| CN109889047A (en) * | 2019-01-31 | 2019-06-14 | 南京航空航天大学 | A kind of two-stage type DC-DC converter suitable for wide input wide output voltage range |
| CN110116637A (en) * | 2019-05-10 | 2019-08-13 | 湖南科技大学 | Shield electric locomotive hybrid power power supply based on fuel cell and super capacitor |
| CN110429719A (en) * | 2019-09-05 | 2019-11-08 | 哈尔滨工业大学 | Efficient radio energy Transmission system based on crisscross parallel Boost |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260543A (en) * | 2020-09-19 | 2021-01-22 | 许继电源有限公司 | High-gain high-frequency isolation bidirectional cascade DC/DC converter and control method thereof |
| CN112260543B (en) * | 2020-09-19 | 2022-06-24 | 许继电源有限公司 | High-gain high-frequency isolation bidirectional cascade DC/DC converter and control method thereof |
| CN112615535A (en) * | 2020-11-30 | 2021-04-06 | 北京交通大学 | Soft start circuit for interleaved DC converter and control method thereof |
| CN114590140A (en) * | 2022-03-30 | 2022-06-07 | 华人运通(江苏)技术有限公司 | Charge-discharge management system of electric automobile |
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