CN104198856A - Off-board charger test method and device - Google Patents
Off-board charger test method and device Download PDFInfo
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- CN104198856A CN104198856A CN201410443561.9A CN201410443561A CN104198856A CN 104198856 A CN104198856 A CN 104198856A CN 201410443561 A CN201410443561 A CN 201410443561A CN 104198856 A CN104198856 A CN 104198856A
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Abstract
An embodiment of the invention discloses an off-board charger test method and device and relates to the field of charging technologies. The off-board charger test method comprises receiving the DC (Direct Current) output side current which is output from an off-board charger, wherein the DC output side current is the low voltage DC current; controlling the DC output side current to pass through a full-bridge DC/DC converter to form the high voltage DC current which is used for inversion; controlling the high voltage DC current to pass through a pulse width modulation rectifier which works in an inverter state to generate the AC (Alternating Current) voltage; enabling the AC voltage to feed back the power energy to a power grid which is connected with a feedback network interface through the feedback network interface. According to the off-board charger test method and device, the problem that a large number of power energy losses can be produced during detection of the current off-board charger can be solved.
Description
Technical field
The present invention relates to charging technique field, relate in particular to a kind of detection method and device of non-Vehicular charger.
Background technology
At present, along with electric automobile has the advantage of energy-saving and environmental protection, China is using Development of EV as the effective means that solves urban atmospheric pollution and energy problem.The electric energy arbitrary way of current electric automobile has two kinds of car load charging and battery alterings, and car load charging modes is that electric automobile be take by charging set the power cell of vehicle that the mode of interchange or direct current is electric automobile and carried out electric energy supply in charging station; Battery altering mode is that electric automobile is changed with special replacement device the replaceable battery group of using up and another group has been full of to electric electric battery and changes in battery altering station, afterwards the electric battery of using up is transported on battery charging rack, with charging set, carries out branch mailbox charging.
At present, grid company is for supporting the development of electric automobile, Large scale construction charging station and battery altering station, a large amount of car load charging sets and non-Vehicular charger have been equipped with, its principle is mainly by rectification, to be power cell of vehicle or the required DC voltage of removable batteries charging by grid side alternating voltage, thereby charges for power cell of vehicle or removable electric battery.
Safely and steadily running of current electrically-charging equipment is the problem that each electric company is extremely concerned about at present, when the detection to non-Vehicular charger, generally need to apply ohmic load or electronic load, because ohmic load or electronic load can produce a large amount of heats when the operation, thereby make non-Vehicular charger can cause a large amount of electric energy losses when detected.
Summary of the invention
Embodiments of the invention provide a kind of detection method and device of non-Vehicular charger, when solving the detection of current non-Vehicular charger, can produce the problem of a large amount of electric energy losses.
For achieving the above object, the present invention adopts following technical scheme:
A detection method for non-Vehicular charger, comprising:
The direct current outgoing side electric current that receives non-Vehicular charger output, described direct current outgoing side electric current is a low voltage direct current;
Control described direct current outgoing side electric current through full-bridge type DC/DC transducer, form the high-voltage direct current in order to inversion;
Control described high-voltage direct current through being operated in the PWM converter of inverter mode, generate alternating voltage;
Described alternating voltage is passed through to feedback network interface to the electrical network feedback electric energy being connected with described feedback network interface.
Further, the detection method of described non-Vehicular charger, also comprises:
To described non-Vehicular charger, send charging and detect instruction;
The interchange input side electric current that obtains described non-Vehicular charger with exchange input side voltage;
According to non-Vehicular charger working time and described input side electric current, the interchange input side voltage of exchanging, determine the first power, the first electric energy and first harmonic value;
Obtain direct current outgoing side electric current and the direct current outgoing side voltage of described non-Vehicular charger;
According to non-Vehicular charger working time and described direct current outgoing side electric current, direct current outgoing side voltage, determine the second power, the second electric energy and second harmonic value;
According to described the first power, the first electric energy, first harmonic value and the second power, the second electric energy, second harmonic value, determine charge efficiency, the precision of voltage regulation and the precision of steady current of described non-Vehicular charger;
According to the charge efficiency of described non-Vehicular charger, the precision of voltage regulation and precision of steady current, determine that whether described non-Vehicular charger is normal.
Concrete, described to described non-Vehicular charger transmission charging detection instruction, comprising:
To described non-Vehicular charger, send work rated voltage, the maximum current of described non-Vehicular charger, and the residual capacity of the battery of simulating.
Further, the detection method of described non-Vehicular charger, also comprises:
When the residual capacity of described simulated battery is less than a preset capacity, judge that whether described direct current outgoing side electric current is constant;
If described direct current outgoing side current constant, determines that described non-Vehicular charger is normal.
Further, the detection method of described non-Vehicular charger, also comprises:
When the residual capacity of described simulated battery is greater than a preset capacity, judge whether described direct current outgoing side electric current reduces gradually, and whether described direct current outgoing side voltage equals a rated voltage setting in advance;
If described direct current outgoing side electric current reduces gradually, and the rated voltage that sets in advance described in equaling of described direct current outgoing side voltage, determine that described non-Vehicular charger is normal.
A pick-up unit for non-Vehicular charger, comprising:
Low voltage direct current receiving element, for receiving the direct current outgoing side electric current of non-Vehicular charger output, described direct current outgoing side electric current is a low voltage direct current;
High-voltage direct current forming unit, the direct current outgoing side electric current process full-bridge type DC/DC transducer receiving for controlling described low voltage direct current receiving element, forms the high-voltage direct current in order to inversion;
Alternating voltage generation unit, passes through for controlling the high-voltage direct current of described high-voltage direct current forming unit formation the PWM converter that is operated in inverter mode, generates alternating voltage;
Electric energy feedback unit, passes through feedback network interface to the electrical network feedback electric energy being connected with described feedback network interface for the described alternating voltage that described alternating voltage generation unit is generated.
Further, the pick-up unit of described non-Vehicular charger, also comprises:
Charging detects instruction sending unit, for sending charging to described non-Vehicular charger, detects instruction;
The first acquiring unit, for the interchange input side electric current that obtains described non-Vehicular charger with exchange input side voltage;
The first determining unit, for according to non-Vehicular charger working time and described input side electric current, the interchange input side voltage of exchanging, determines the first power, the first electric energy and first harmonic value;
Second acquisition unit, for obtaining direct current outgoing side electric current and the direct current outgoing side voltage of described non-Vehicular charger;
The second determining unit, for according to non-Vehicular charger working time and described direct current outgoing side electric current, direct current outgoing side voltage, determines the second power, the second electric energy and second harmonic value;
The 3rd determining unit, for determining charge efficiency, the precision of voltage regulation and the precision of steady current of described non-Vehicular charger according to described the first power, the first electric energy, first harmonic value and the second power, the second electric energy, second harmonic value;
The 4th determining unit, for determining that according to the charge efficiency of described non-Vehicular charger, the precision of voltage regulation and precision of steady current whether described non-Vehicular charger is normal.
Concrete, described charging detects instruction sending unit, for:
To described non-Vehicular charger, send work rated voltage, the maximum current of described non-Vehicular charger, and the residual capacity of the battery of simulating.
Further, the pick-up unit of described non-Vehicular charger, also comprises the first judging unit;
When the residual capacity of described simulated battery is less than a preset capacity, described the first judging unit is used for judging that whether described direct current outgoing side electric current is constant;
If described the first judging unit determines described direct current outgoing side current constant, described the 4th determining unit determines that described non-Vehicular charger is normal.
Further, the pick-up unit of described non-Vehicular charger, also comprises the second judging unit;
When the residual capacity of described simulated battery is greater than a preset capacity, described the second judging unit is used for judging whether described direct current outgoing side electric current reduces gradually, and whether described direct current outgoing side voltage equals a rated voltage setting in advance;
If determining described direct current outgoing side electric current, described the second judging unit reduces gradually, and the rated voltage that sets in advance described in equaling of described direct current outgoing side voltage, described the 4th determining unit determines that described non-Vehicular charger is normal.
A kind of pick-up unit of non-Vehicular charger, comprise feedback net power electronic load circuit, described feedback net power electronic load circuit comprise non-Vehicular charger interface for connecting non-Vehicular charger, full-bridge type DC/DC transducer, PWM converter with for being connected the feedback network interface of electrical network;
Described non-Vehicular charger interface, full-bridge type DC/DC transducer, PWM converter and described feedback network interface serial connection;
The pick-up unit of described non-Vehicular charger also comprises interchange input side voltage sensor, exchanges input side current inductor, direct current outgoing side voltage sensor, direct current outgoing side current inductor;
Described interchange input side voltage sensor and the one end that exchanges input side current inductor are connected to the interchange input side of described non-Vehicular charger; Described interchange input side voltage sensor is connected with a processor with the other end that exchanges input side current inductor;
One end of described direct current outgoing side voltage sensor and direct current outgoing side current inductor is connected to the direct current outgoing side of described non-Vehicular charger; The other end of described direct current outgoing side voltage sensor and direct current outgoing side current inductor is connected with described processor;
Described processor is connected with display and man-machine interactive operation keyboard and a battery management system.
Concrete, described non-Vehicular charger interface is provided with direct current interface and controller local area network's bus interface;
The DC side output terminal of described non-Vehicular charger is connected with described full-bridge type DC/DC transducer by described direct current interface;
The communication ends of described non-Vehicular charger is connected with described battery management system by described controller local area network bus interface, so that described non-Vehicular charger is communicated by letter with described battery management system.
The detection method of the non-Vehicular charger that the embodiment of the present invention provides and device, after receiving the direct current outgoing side electric current of non-Vehicular charger output, can control described direct current outgoing side electric current through full-bridge type DC/DC transducer, formation is in order to the high-voltage direct current of inversion, and control described high-voltage direct current through being operated in the PWM converter of inverter mode, generate alternating voltage, thereby described alternating voltage is passed through to feedback network interface to the electrical network feedback electric energy being connected with described feedback network interface.What in the pick-up unit of non-Vehicular charger in the present invention, arrange is feedback net power electronic load circuit, and the ohmic load or the electronic load that not use, thereby can be to electrical network feedback electric energy, and avoided application ohmic load or electronic load when operation, to produce a large amount of heats, non-Vehicular charger can cause the problem of a large amount of electric energy losses when detected.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process flow diagram one of the detection method of the non-Vehicular charger that Fig. 1 provides for the embodiment of the present invention;
The flowchart 2 of the detection method of the non-Vehicular charger that Fig. 2 provides for the embodiment of the present invention;
The flow chart 3 of the detection method of the non-Vehicular charger that Fig. 3 provides for the embodiment of the present invention;
The process flow diagram four of the detection method of the non-Vehicular charger that Fig. 4 provides for the embodiment of the present invention;
The structural representation one of the pick-up unit of the non-Vehicular charger that Fig. 5 provides for the embodiment of the present invention;
The structural representation two of the pick-up unit of the non-Vehicular charger that Fig. 6 provides for the embodiment of the present invention;
The entity structure schematic diagram one of the pick-up unit of the non-Vehicular charger that Fig. 7 provides for the embodiment of the present invention;
The entity structure schematic diagram two of the pick-up unit of the non-Vehicular charger that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is the structural representation of the non-Vehicular charger interface in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the detection method of the non-Vehicular charger that the embodiment of the present invention provides, comprising:
Step 101, receive the direct current outgoing side electric current of non-Vehicular charger output, direct current outgoing side electric current is a low voltage direct current.
Step 102, control direct current outgoing side electric current, through full-bridge type DC/DC transducer, form the high-voltage direct current in order to inversion.
Step 103, control high-voltage direct current, through being operated in the PWM converter of inverter mode, generate alternating voltage.
Step 104, by alternating voltage by feedback network interface to the electrical network feedback electric energy that is connected of feedback network interface.
The executive agent of the detection method of the non-Vehicular charger that the embodiment of the present invention provides can be a kind of pick-up unit of non-Vehicular charger.
The detection method of the non-Vehicular charger that the embodiment of the present invention provides, after receiving the direct current outgoing side electric current of non-Vehicular charger output, can control direct current outgoing side electric current through full-bridge type DC/DC transducer, formation is in order to the high-voltage direct current of inversion, and control high-voltage direct current through being operated in the PWM converter of inverter mode, generate alternating voltage, thereby alternating voltage is passed through to feedback network interface to the electrical network feedback electric energy being connected with feedback network interface.What in the pick-up unit of non-Vehicular charger in the present invention, arrange is feedback net power electronic load circuit, and the ohmic load or the electronic load that not use, thereby can be to electrical network feedback electric energy, and avoided application ohmic load or electronic load when operation, to produce a large amount of heats, non-Vehicular charger can cause the problem of a large amount of electric energy losses when detected.
In addition, because feedback net power electronic load circuitry consumes power is less, and the small volume of feedback net power electronic load, therefore can be so that the detection of non-Vehicular charger can not consume too much electric energy, and the pick-up unit volume of non-Vehicular charger is less, is easy to carry.
The frequency of above-mentioned alternating voltage is generally 50Hz.
For the ease of those skilled in the art, better understand this programme, enumerate a more detailed embodiment below, as shown in Figure 2, the detection method of the non-Vehicular charger in this embodiment, comprising:
Step 201, send charging detect instruction to non-Vehicular charger, charging detects in instruction work rated voltage, the maximum current with non-Vehicular charger, and the residual capacity of the battery of required simulation.Perform step afterwards 202 or step 206.
Above-mentioned rated voltage is the work rated voltage of the non-Vehicular charger preset, the maximum operating currenbt that maximum current is non-Vehicular charger.
Step 202, receive the direct current outgoing side electric current of non-Vehicular charger output, direct current outgoing side electric current is a low voltage direct current.
This direct current outgoing side electric current is the electric current that non-Vehicular charger is battery charging.
Step 203, control direct current outgoing side electric current, through full-bridge type DC/DC transducer, form the high-voltage direct current in order to inversion.
Step 204, control high-voltage direct current, through being operated in the PWM converter of inverter mode, generate alternating voltage.
The frequency of this above-mentioned alternating voltage is generally 50Hz.
Step 205, by alternating voltage by feedback network interface to the electrical network feedback electric energy that is connected of feedback network interface.
Step 206, the interchange input side electric current that obtains non-Vehicular charger, interchange input side voltage, direct current outgoing side electric current and direct current outgoing side voltage.
Step 207, according to the non-Vehicular charger working time with exchange input side electric current, exchange input side voltage, determine the first power, the first electric energy and first harmonic value, according to non-Vehicular charger working time and direct current outgoing side electric current, direct current outgoing side voltage, determine the second power, the second electric energy and second harmonic value.
Step 208, according to the first power, the first electric energy, first harmonic value and the second power, the second electric energy, second harmonic value, determine charge efficiency, the precision of voltage regulation and the precision of steady current of non-Vehicular charger.
Step 209, according to the charge efficiency of non-Vehicular charger, the precision of voltage regulation and precision of steady current, determine that whether non-Vehicular charger is normal.
Concrete, can set in advance the threshold value of charge efficiency, the precision of voltage regulation and precision of steady current, when charge efficiency, the precision of voltage regulation and the precision of steady current of above-mentioned non-Vehicular charger can reach respectively the threshold value that sets in advance charge efficiency, the precision of voltage regulation and precision of steady current, non-Vehicular charger is working properly, can charge to battery.
In addition, as shown in Figure 3, the detection method of the non-Vehicular charger in the embodiment of the present invention, in step 201, can also comprise the steps:
Step 210, obtain the direct current outgoing side electric current of non-Vehicular charger.
Step 211, when the residual capacity of simulated battery is less than a preset capacity, judge that whether direct current outgoing side electric current constant.
If step 212 direct current outgoing side current constant, determines that non-Vehicular charger is normal.
If step 213 direct current outgoing side electric current is non-constant, determine that non-Vehicular charger is abnormal.
When the residual capacity of simulated battery is less than a preset capacity, the residual capacity of general simulated battery is lower, therefore can need a constant larger electric current to charge.The charging ability that this step 210-step 213 detects is non-Vehicular charger when the residual capacity of simulated battery is lower.
In addition, as shown in Figure 4, the detection method of the non-Vehicular charger in the embodiment of the present invention, in step 201, can also comprise the steps:
Step 210, obtain the direct current outgoing side electric current of non-Vehicular charger.
Step 214, when the residual capacity of simulated battery is greater than a preset capacity, judge whether direct current outgoing side electric current reduces gradually, and whether direct current outgoing side voltage equals a rated voltage setting in advance.
If step 215 direct current outgoing side electric current reduces gradually, and the direct current outgoing side voltage rated voltage that equals to set in advance, determine that non-Vehicular charger is normal.
If step 216 direct current outgoing side electric current does not reduce gradually, or direct current outgoing side voltage is not equal to the rated voltage setting in advance, and determines that non-Vehicular charger is abnormal.
When the residual capacity of simulated battery is less than large preset capacity, the residual capacity of general simulated battery is higher, therefore can need constant and equal a to set in advance rated voltage, and less electric current charges.The charging ability that this step 210-step 216 detects is non-Vehicular charger when the residual capacity of simulated battery is higher.
Corresponding to the detection method of the non-Vehicular charger shown in above-mentioned Fig. 1 to Fig. 4, as shown in Figure 5, the pick-up unit of the non-Vehicular charger that the embodiment of the present invention provides, comprising:
Low voltage direct current receiving element 31, can receive the direct current outgoing side electric current that non-Vehicular charger is exported, and direct current outgoing side electric current is a low voltage direct current.
High-voltage direct current forming unit 32, can control the direct current outgoing side electric current process full-bridge type DC/DC transducer that low voltage direct current receiving element 31 receives, and forms the high-voltage direct current in order to inversion.
Alternating voltage generation unit 33, can control the high-voltage direct current of high-voltage direct current forming unit 32 formation through being operated in the PWM converter of inverter mode, generates alternating voltage.
Electric energy feedback unit 34, the alternating voltage that alternating voltage generation unit 33 can be generated is by presenting network interface to the electrical network feedback electric energy being connected with feedback network interface.
Further, as shown in Figure 6, the pick-up unit of non-Vehicular charger also comprises:
Charging detects instruction sending unit 35, can send charging to non-Vehicular charger and detect instruction.
The first acquiring unit 36, the interchange input side electric current that can obtain non-Vehicular charger with exchange input side voltage.
The first determining unit 37, can according to the non-Vehicular charger working time with exchange input side electric current, exchange input side voltage, determine the first power, the first electric energy and first harmonic value.
Second acquisition unit 38, can obtain direct current outgoing side electric current and the direct current outgoing side voltage of non-Vehicular charger.
The second determining unit 39, can, according to non-Vehicular charger working time and direct current outgoing side electric current, direct current outgoing side voltage, determine the second power, the second electric energy and second harmonic value.
The 3rd determining unit 40, can determine according to the first power, the first electric energy, first harmonic value and the second power, the second electric energy, second harmonic value charge efficiency, the precision of voltage regulation and the precision of steady current of non-Vehicular charger.
The 4th determining unit 41, can determine that whether non-Vehicular charger is normal according to the charge efficiency of non-Vehicular charger, the precision of voltage regulation and precision of steady current.
Concrete, charging detects instruction sending unit 35, can send to non-Vehicular charger work rated voltage, the maximum current of non-Vehicular charger and the residual capacity of the battery of simulating.
Further, the pick-up unit of non-Vehicular charger, can also comprise the first judging unit 42.
When the residual capacity of simulated battery is less than a preset capacity, the first judging unit 42 can judge that whether direct current outgoing side electric current is constant.
If the first judging unit 42 determines direct current outgoing side current constant, the 4th determining unit 41 determines that non-Vehicular charger is normal.
Further, the pick-up unit of non-Vehicular charger, also comprises the second judging unit 43.
When the residual capacity of simulated battery is greater than a preset capacity, the second judging unit 43 can judge whether direct current outgoing side electric current reduces gradually, and whether direct current outgoing side voltage equals a rated voltage setting in advance.
If determining direct current outgoing side electric current, the second judging unit 43 reduces gradually, and the rated voltage that sets in advance described in equaling of direct current outgoing side voltage, the 4th determining unit 41 determines that non-Vehicular charger is normal.
What deserves to be explained is, the specific implementation of the pick-up unit of the non-Vehicular charger that the embodiment of the present invention provides can, referring to the embodiment of the method for Fig. 1 to Fig. 4, repeat no more herein.
The pick-up unit of the non-Vehicular charger that the embodiment of the present invention provides, after receiving the direct current outgoing side electric current of non-Vehicular charger output, can control direct current outgoing side electric current through full-bridge type DC/DC transducer, formation is in order to the high-voltage direct current of inversion, and control high-voltage direct current through being operated in the PWM converter of inverter mode, generate alternating voltage, thereby alternating voltage is passed through to feedback network interface to the electrical network feedback electric energy being connected with feedback network interface.What in the pick-up unit of non-Vehicular charger in the present invention, arrange is feedback net power electronic load circuit, and the ohmic load or the electronic load that not use, thereby can be to electrical network feedback electric energy, and avoided application ohmic load or electronic load when operation, to produce a large amount of heats, non-Vehicular charger can cause the problem of a large amount of electric energy losses when detected.
In addition, as shown in Figure 7, the pick-up unit 50 of the non-Vehicular charger that the embodiment of the present invention provides, comprise feedback net power electronic load circuit 51, this feedback net power electronic load circuit 51 comprise non-Vehicular charger interface 52 for connecting non-Vehicular charger, full-bridge type DC/DC transducer 53, PWM converter 54 with for being connected the feedback network interface 55 of electrical network.
This non-Vehicular charger interface 52, full-bridge type DC/DC transducer 53, PWM converter 54 and feedback network interface 55 serial connections.
Concrete, this feedback network interface can be a kind of Electro Magnetic Compatibility (Electromagnetic Compatibility is called for short EMC) plate.
The pick-up unit 50 of this non-Vehicular charger also comprises interchange input side voltage sensor 56, exchanges input side current inductor 57, direct current outgoing side voltage sensor 58, direct current outgoing side current inductor 59.
This interchange input side voltage sensor 56 and the one end that exchanges input side current inductor 57 are connected to the interchange input side of non-Vehicular charger; Exchanging input side voltage sensor 56 is connected with a processor 60 with the other end that exchanges input side current inductor 57.
One end of direct current outgoing side voltage sensor 58 and direct current outgoing side current inductor 59 is connected to the direct current outgoing side of non-Vehicular charger; The other end of direct current outgoing side voltage sensor 58 and direct current outgoing side current inductor 59 is connected with processor 60.
This processor 60 is connected with display 61 and man-machine interactive operation keyboard 62 and a battery management system 63.
This battery management system 63 can comprise DC characteristic comprehensive tester and internal resistance test device etc., and concrete model can be for example BMS.EV01, BMS.EV02, BMS.EV03.
Concrete, as shown in Figure 8, non-Vehicular charger interface 52 is provided with direct current interface 64He controller local area network bus interface 65.
The DC side output terminal of above-mentioned non-Vehicular charger is connected with full-bridge type DC/DC transducer 53 by direct current interface 64.
The communication ends of above-mentioned non-Vehicular charger is connected with battery management system 63 by controller local area network's bus interface 65, so that non-Vehicular charger is communicated by letter with battery management system 63.
Concrete structure for non-Vehicular charger interface 52, can be as shown in Figure 9, comprised direct current interface 64He controller local area network bus interface 65, direct current interface 64 has comprised direct current interface anodal 641 and direct current interface negative pole 642, and controller local area network's bus interface 65 has comprised the bus interface H651 of controller local area network and the bus interface L652 of controller local area network.This non-Vehicular charger interface 52 can also comprise protective ground interface 66, in order to connect the ground wire of non-Vehicular charger.In controller local area network's bus interface 65, have controller local area network's bus interface resistance, the resistance of this resistance can be 120 Ω.In addition, this non-Vehicular charger interface 52 also comprises that charging connects confirmation interface 1, interface 2 70, low pressure accessory power supply anode interface 71 and low pressure accessory power supply negative pole interface 72 are confirmed in charging connection.
In addition, as shown in Figure 8, in the pick-up unit 50 of non-Vehicular charger, can also be provided with the temperature acquisition sensor 67 being connected with processor 60, temperature in order to monitoring feedback net power electronic load circuit 51, the rotating speed of the fan 68 that this processor 60 can be connected with processor 60 according to the adjustment of this temperature, thinks 51 coolings of feedback net power electronic load circuit.
The pick-up unit of the non-Vehicular charger that the embodiment of the present invention provides, after receiving the direct current outgoing side electric current of non-Vehicular charger output, can control direct current outgoing side electric current through full-bridge type DC/DC transducer, formation is in order to the high-voltage direct current of inversion, and control high-voltage direct current through being operated in the PWM converter of inverter mode, generate alternating voltage, thereby alternating voltage is passed through to feedback network interface to the electrical network feedback electric energy being connected with feedback network interface.What in the pick-up unit of non-Vehicular charger in the present invention, arrange is feedback net power electronic load circuit, and the ohmic load or the electronic load that not use, thereby can be to electrical network feedback electric energy, and avoided application ohmic load or electronic load when operation, to produce a large amount of heats, non-Vehicular charger can cause the problem of a large amount of electric energy losses when detected.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to process flow diagram and/or the block scheme of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block scheme each flow process and/or the flow process in square frame and process flow diagram and/or block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computing machine or other programmable data processing device is produced for realizing the device in the function of flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computing machine or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame on computing machine or other programmable devices.
In the present invention, applied specific embodiment principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (12)
1. a detection method for non-Vehicular charger, is characterized in that, comprising:
The direct current outgoing side electric current that receives non-Vehicular charger output, described direct current outgoing side electric current is a low voltage direct current;
Control described direct current outgoing side electric current through full-bridge type DC/DC transducer, form the high-voltage direct current in order to inversion;
Control described high-voltage direct current through being operated in the PWM converter of inverter mode, generate alternating voltage;
Described alternating voltage is passed through to feedback network interface to the electrical network feedback electric energy being connected with described feedback network interface.
2. the detection method of non-Vehicular charger according to claim 1, is characterized in that, also comprises:
To described non-Vehicular charger, send charging and detect instruction;
The interchange input side electric current that obtains described non-Vehicular charger with exchange input side voltage;
According to non-Vehicular charger working time and described input side electric current, the interchange input side voltage of exchanging, determine the first power, the first electric energy and first harmonic value;
Obtain direct current outgoing side electric current and the direct current outgoing side voltage of described non-Vehicular charger;
According to non-Vehicular charger working time and described direct current outgoing side electric current, direct current outgoing side voltage, determine the second power, the second electric energy and second harmonic value;
According to described the first power, the first electric energy, first harmonic value and the second power, the second electric energy, second harmonic value, determine charge efficiency, the precision of voltage regulation and the precision of steady current of described non-Vehicular charger;
According to the charge efficiency of described non-Vehicular charger, the precision of voltage regulation and precision of steady current, determine that whether described non-Vehicular charger is normal.
3. the detection method of non-Vehicular charger according to claim 2, is characterized in that, described to described non-Vehicular charger transmission charging detection instruction, comprising:
To described non-Vehicular charger, send work rated voltage, the maximum current of described non-Vehicular charger, and the residual capacity of the battery of simulating.
4. the detection method of non-Vehicular charger according to claim 3, is characterized in that, also comprises:
When the residual capacity of described simulated battery is less than a preset capacity, judge that whether described direct current outgoing side electric current is constant;
If described direct current outgoing side current constant, determines that described non-Vehicular charger is normal.
5. the detection method of non-Vehicular charger according to claim 3, is characterized in that, also comprises:
When the residual capacity of described simulated battery is greater than a preset capacity, judge whether described direct current outgoing side electric current reduces gradually, and whether described direct current outgoing side voltage equals a rated voltage setting in advance;
If described direct current outgoing side electric current reduces gradually, and the rated voltage that sets in advance described in equaling of described direct current outgoing side voltage, determine that described non-Vehicular charger is normal.
6. a pick-up unit for non-Vehicular charger, is characterized in that, comprising:
Low voltage direct current receiving element, for receiving the direct current outgoing side electric current of non-Vehicular charger output, described direct current outgoing side electric current is a low voltage direct current;
High-voltage direct current forming unit, the direct current outgoing side electric current process full-bridge type DC/DC transducer receiving for controlling described low voltage direct current receiving element, forms the high-voltage direct current in order to inversion;
Alternating voltage generation unit, passes through for controlling the high-voltage direct current of described high-voltage direct current forming unit formation the PWM converter that is operated in inverter mode, generates alternating voltage;
Electric energy feedback unit, passes through feedback network interface to the electrical network feedback electric energy being connected with described feedback network interface for the described alternating voltage that described alternating voltage generation unit is generated.
7. the pick-up unit of non-Vehicular charger according to claim 6, is characterized in that, also comprises:
Charging detects instruction sending unit, for sending charging to described non-Vehicular charger, detects instruction;
The first acquiring unit, for the interchange input side electric current that obtains described non-Vehicular charger with exchange input side voltage;
The first determining unit, for according to non-Vehicular charger working time and described input side electric current, the interchange input side voltage of exchanging, determines the first power, the first electric energy and first harmonic value;
Second acquisition unit, for obtaining direct current outgoing side electric current and the direct current outgoing side voltage of described non-Vehicular charger;
The second determining unit, for according to non-Vehicular charger working time and described direct current outgoing side electric current, direct current outgoing side voltage, determines the second power, the second electric energy and second harmonic value;
The 3rd determining unit, for determining charge efficiency, the precision of voltage regulation and the precision of steady current of described non-Vehicular charger according to described the first power, the first electric energy, first harmonic value and the second power, the second electric energy, second harmonic value;
The 4th determining unit, for determining that according to the charge efficiency of described non-Vehicular charger, the precision of voltage regulation and precision of steady current whether described non-Vehicular charger is normal.
8. the pick-up unit of non-Vehicular charger according to claim 7, is characterized in that, described charging detects instruction sending unit, specifically for:
To described non-Vehicular charger, send work rated voltage, the maximum current of described non-Vehicular charger, and the residual capacity of the battery of simulating.
9. the pick-up unit of non-Vehicular charger according to claim 8, is characterized in that, also comprises the first judging unit;
When the residual capacity of described simulated battery is less than a preset capacity, described the first judging unit is used for judging that whether described direct current outgoing side electric current is constant;
If described the first judging unit determines described direct current outgoing side current constant, described the 4th determining unit determines that described non-Vehicular charger is normal.
10. the pick-up unit of non-Vehicular charger according to claim 8, is characterized in that, also comprises the second judging unit;
When the residual capacity of described simulated battery is greater than a preset capacity, described the second judging unit is used for judging whether described direct current outgoing side electric current reduces gradually, and whether described direct current outgoing side voltage equals a rated voltage setting in advance;
If determining described direct current outgoing side electric current, described the second judging unit reduces gradually, and the rated voltage that sets in advance described in equaling of described direct current outgoing side voltage, described the 4th determining unit determines that described non-Vehicular charger is normal.
The pick-up unit of 11. 1 kinds of non-Vehicular chargers, it is characterized in that, comprise feedback net power electronic load circuit, described feedback net power electronic load circuit comprise non-Vehicular charger interface for connecting non-Vehicular charger, full-bridge type DC/DC transducer, PWM converter with for being connected the feedback network interface of electrical network;
Described non-Vehicular charger interface, full-bridge type DC/DC transducer, PWM converter and described feedback network interface serial connection;
The pick-up unit of described non-Vehicular charger also comprises interchange input side voltage sensor, exchanges input side current inductor, direct current outgoing side voltage sensor, direct current outgoing side current inductor;
Described interchange input side voltage sensor and the one end that exchanges input side current inductor are connected to the interchange input side of described non-Vehicular charger; Described interchange input side voltage sensor is connected with a processor with the other end that exchanges input side current inductor;
One end of described direct current outgoing side voltage sensor and direct current outgoing side current inductor is connected to the direct current outgoing side of described non-Vehicular charger; The other end of described direct current outgoing side voltage sensor and direct current outgoing side current inductor is connected with described processor;
Described processor is connected with display and man-machine interactive operation keyboard and a battery management system.
The pick-up unit of 12. non-Vehicular chargers according to claim 11, is characterized in that, described non-Vehicular charger interface is provided with direct current interface and controller local area network's bus interface;
The DC side output terminal of described non-Vehicular charger is connected with described full-bridge type DC/DC transducer by described direct current interface;
The communication ends of described non-Vehicular charger is connected with described battery management system by described controller local area network bus interface, so that described non-Vehicular charger is communicated by letter with described battery management system.
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| CN201410443561.9A CN104198856A (en) | 2014-09-02 | 2014-09-02 | Off-board charger test method and device |
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| CN201410443561.9A CN104198856A (en) | 2014-09-02 | 2014-09-02 | Off-board charger test method and device |
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