Charging pile power utilization environment adaptive algorithm and system, charging pileTechnical field
The present invention relates to a kind of charging pile power utilization environment adaptive algorithm and systems, charging pile.
Background technique
Charging pile can work as inlet wire in suspending or stopping the output charging of rifle end alternating voltage when primary voltage occurs under-voltageVoltage continues to charge when restoring；Since the power utilization environment of household charging pile is sufficiently complex, especially when summer, power load was high, byIt is chronically at under-voltage condition in primary voltage, charging pile is may cause and is chronically at pause charged state, is in turn resulted in second dayVehicle can not just be commonly used.
And when primary voltage is lower than brownout threshold Vmin, charging pile stops charging, but after stopping charging, inlet wire electricityPressure can be restored to normal value, therefore charging pile can restore to charge, and repeat the above process always: as shown in Figure 1, charging -> under-voltage stopOnly -> voltage restores -> continues charging -> under-voltage stopping.
Summary of the invention
The object of the present invention is to provide a kind of charging pile power utilization environment adaptive algorithm and systems, charging pile.
In order to solve the above-mentioned technical problems, the present invention provides a kind of charging adaptive algorithms, comprising:
Primary voltage is detected, and charge power is adjusted according to primary voltage.
Further, the method for adjusting charge power according to primary voltage includes:
Set a brownout threshold Vmin and upper limit voltage threshold value Vmax, and Vmin < Vmax；
If primary voltage is lower than brownout threshold Vmin, charge power is reduced, so that primary voltage gos up to not less than under-voltageThreshold value Vmin；
If primary voltage is higher than upper limit voltage threshold value Vmax, charge power is improved, so that primary voltage declines and is not less thanBrownout threshold Vmin.
Further, the method for adjusting charge power according to primary voltage includes:
Set a brownout threshold Vmin, overvoltage threshold Vover=Vmin+ Δ V；
Upper limit voltage threshold value Vmax=Vmin+N* Δ V；
In above formula, Vmin < Vmax, N are the voltage multiplication set, Δ V as hysteresis voltage；
If primary voltage is lower than brownout threshold Vmin, charge power is reduced, so that primary voltage gos up to not less than over-voltageThreshold value Vover；
If primary voltage is higher than upper limit voltage threshold value Vmax, charge power is improved, so that primary voltage declines and is not less thanBrownout threshold Vmin.
Further, charge power is reduced, i.e.,
The duty ratio of charge control pulse signal is reduced so that primary voltage gos up；
Charge power is improved, i.e.,
The duty ratio of charge control pulse signal is improved so that primary voltage declines.
Another aspect, the present invention also provides a kind of charging adaptive control systems, comprising:
Primary voltage detection module, processor module and power output module；Wherein
The processor module is suitable for detecting primary voltage by primary voltage detection module, and controls power according to primary voltageOutput module adjusts charge power.
Further, the processor module is suitable for setting one brownout threshold Vmin and upper limit voltage threshold value Vmax, and Vmin< Vmax；
If primary voltage is lower than brownout threshold Vmin, the processor module control power output module reduces charging functionRate, so that primary voltage gos up to not less than brownout threshold Vmin；
If primary voltage is higher than upper limit voltage threshold value Vmax, the processor module control power output module improves chargingPower, so that primary voltage declines and is not less than brownout threshold Vmin.
Further, the processor module is suitable for setting one brownout threshold Vmin, overvoltage threshold Vover=Vmin+ Δ V；WithAnd
Upper limit voltage threshold value Vmax=Vmin+N* Δ V；
In above formula, Vmin < Vmax, N are the voltage multiplication set, Δ V as hysteresis voltage；
If primary voltage is lower than brownout threshold Vmin, the processor module control power output module reduces charging functionRate, so that primary voltage gos up to not less than overvoltage threshold Vover；
If primary voltage is higher than upper limit voltage threshold value Vmax, the processor module control power output module improves chargingPower, so that primary voltage declines and is not less than brownout threshold Vmin.
Further, the processor module is suitable for output charge control pulse signal to control power output module adjustment and fillElectrical power, i.e.,
Charge power is reduced, then reduces the duty ratio of charge control pulse signal so that primary voltage gos up；
Charge power is improved, then improves the duty ratio of charge control pulse signal so that primary voltage declines.
The third aspect, the present invention also provides a kind of charging piles, comprising: charging adaptive control system,
The charging adaptive control system includes:
Primary voltage detection module, processor module and power output module；Wherein
The processor module is suitable for detecting primary voltage by primary voltage detection module, and controls power according to primary voltageOutput module adjusts charge power.
The charging pile is suitable for using the charging adaptive control system.
The invention has the advantages that the present invention will not cause to impact according to adaptive power utilization environment to power grid, and dropProcessing will not be repeated in the O&M cost of low charging pile because of under-voltage problem, but also can be in capacitor deficiency using lowThe charging modes of power charging persistently charge, and shorten the whole charging time.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the charging curve of prior art charging pile；
Fig. 2 is the algorithm flow chart of charging adaptive algorithm of the invention；
Fig. 3 is the relationship between electric current in charging adaptive algorithm of the invention, voltage and charge control pulse signal duty ratioCurve；
Fig. 4 is the functional block diagram of charging adaptive control system of the invention.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only withIllustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
Embodiment 1
Fig. 2 is the algorithm flow chart of charging adaptive algorithm of the invention；
As shown in Fig. 2, present embodiments providing a kind of charging adaptive algorithm, comprising:
Step S1 detects primary voltage；And
Step S2 adjusts charge power according to primary voltage.
As the first embodiment of step S2, in the present embodiment, the side of charge power is adjusted according to primary voltageMethod includes:
Set a brownout threshold Vmin and upper limit voltage threshold value Vmax, and Vmin < Vmax；
If primary voltage is lower than brownout threshold Vmin, charge power is reduced, so that primary voltage gos up to not less than under-voltageThreshold value Vmin；
If primary voltage is higher than upper limit voltage threshold value Vmax, charge power is improved, so that primary voltage declines and is not less thanBrownout threshold Vmin.
As second of embodiment of step S2, in the present embodiment, the side of charge power is adjusted according to primary voltageMethod includes:
Set a brownout threshold Vmin, overvoltage threshold Vover=Vmin+ Δ V；
Upper limit voltage threshold value Vmax=Vmin+N* Δ V；
In above formula, Vmin < Vmax, N are the voltage multiplication set, Δ V as hysteresis voltage；
If primary voltage is lower than brownout threshold Vmin, charge power is reduced, so that primary voltage gos up to not less than over-voltageThreshold value Vover；It reduces charge power and is realized by reducing the duty ratio of charge control pulse signal (CP), if charge control pulseSignal drops to still under-voltage after specified duty ratio, then stops charging.
If primary voltage be higher than upper limit voltage threshold value Vmax, improve charge power so that primary voltage decline and notLower than brownout threshold Vmin, improves charge power and realized by improving the duty ratio of charge control pulse signal (CP).
Fig. 3 is between electric current in charging adaptive algorithm of the invention, voltage and charge control pulse signal duty ratioRelation curve.
As shown in figure 3, reducing charge power, i.e., the duty ratio of reduction charge control pulse signal (CP) is so that primary voltageGo up, and electric current declines simultaneously；Charge power is improved, i.e., the duty ratio of raising charge control pulse signal is so that under primary voltageDrop, and electric current increases simultaneously.
Embodiment 2
Fig. 4 is the functional block diagram of charging adaptive control system of the invention.
As shown in figure 4, on that basis of example 1, the present embodiment 2 provides a kind of charging adaptive control system, comprising:
Primary voltage detection module, processor module and power output module；Wherein
The processor module is suitable for detecting primary voltage by primary voltage detection module, and controls power according to primary voltageOutput module adjusts charge power.
As the first embodiment for controlling power output module adjustment charge power according to primary voltage.
The processor module is suitable for setting one brownout threshold Vmin and upper limit voltage threshold value Vmax, and Vmin < Vmax；
If primary voltage is lower than brownout threshold Vmin, the processor module control power output module reduces charging functionRate, so that primary voltage gos up to not less than brownout threshold Vmin；
If primary voltage is higher than upper limit voltage threshold value Vmax, the processor module control power output module improves chargingPower, so that primary voltage declines and is not less than brownout threshold Vmin.
As second of embodiment for controlling power output module adjustment charge power according to primary voltage.
The processor module is suitable for setting one brownout threshold Vmin, overvoltage threshold Vover=Vmin+ Δ V；And
Upper limit voltage threshold value Vmax=Vmin+N* Δ V；
In above formula, Vmin < Vmax, N are the voltage multiplication set, Δ V as hysteresis voltage；
If primary voltage is lower than brownout threshold Vmin, the processor module control power output module reduces charging functionRate, so that primary voltage gos up to not less than overvoltage threshold Vover；
If primary voltage is higher than upper limit voltage threshold value Vmax, the processor module control power output module improves chargingPower, so that primary voltage declines and is not less than brownout threshold Vmin.
As shown in figure 3, in the present embodiment, the processor module is suitable for output charge control pulse signal to control functionRate output module adjusts charge power, i.e.,
Charge power is reduced, then reduces the duty ratio of charge control pulse signal so that primary voltage gos up；
Charge power is improved, then improves the duty ratio of charge control pulse signal so that primary voltage declines.
Embodiment 3
On the basis of embodiment 2, the present embodiment 3 provides a kind of charging pile, comprising: charging adaptive control system, it is described to fillElectric adaptive control system includes: primary voltage detection module, processor module and power output module；The wherein placeIt manages device module and is suitable for detecting primary voltage by primary voltage detection module, and power output module tune is controlled according to primary voltageWhole charge power.
In conclusion this charging pile power utilization environment adaptive algorithm and system, charging pile can adapt to locating power grid automaticallyThe variation of environment, adjust automatically charge power make electric stake be in lasting charged state always, with vehicle is full of in the shortest time, subtractFew unnecessary time waste.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is completeVarious changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this inventionProperty range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.