CN110034670A - Adaptive power decoupling control method is multiplexed applied to totem pillar non-bridge PFC topology - Google Patents
Adaptive power decoupling control method is multiplexed applied to totem pillar non-bridge PFC topology Download PDFInfo
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- CN110034670A CN110034670A CN201910315491.1A CN201910315491A CN110034670A CN 110034670 A CN110034670 A CN 110034670A CN 201910315491 A CN201910315491 A CN 201910315491A CN 110034670 A CN110034670 A CN 110034670A
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal 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
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal 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
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal 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
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal 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, e.g. single switched pulse inverters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention belongs to power industry fields, it is desirable to provide one kind is applied to totem pillar non-bridge PFC topology and is multiplexed adaptive power decoupling control method.This method comprises: detecting current circuit state in each control period internal controller, and signal is controlled according to the reference signal generation circuit of circuit state and external transmission or internal preset, guarantees that circuit stability operates in normal PFC working condition；Detection busbar voltage is simultaneously sent to controller, and decoupling voltage reference value is calculated by it and is used to control and decouple the switching tube action being re-used in bridge arm that branch constitutes Buck circuit, the ripple that bus bar side is born is transferred to decoupling capacitance C2On.Control method of the invention has taken into account power decoupled and power factor emendation function, and the reduction of bus capacitor capacitance is realized under conditions of the extra active device of no increase and sensor；It can reduce device cost, improve complete machine power density.Can quick response reference signal variation, adaptation control circuit run to realize power decoupled function.
Description
Technical field
The invention belongs to power industry fields, and in particular to it is a kind of applied to totem pillar non-bridge PFC topology multiplexing from
Adapt to power decoupled control method.This method is related to the operational mode control of totem pillar non-bridge PFC circuits, in particular to needle
The technical problem that cannot achieve high power density greatly to capacitor at the circuit busbar proposes corresponding optimisation strategy, suitable for opening up
Flutter multiple applications such as utility power quality control of multiplexing, energy in bidirectional flow, input and output.
Background technique
Power electronic equipment being widely used in electric system, industry, traffic and family, while promoting the well-being of mankind
Bring harmonic pollution problems.In order to improve grid supply quality, inhibit harmonic pollution, Power Correction Factor corrects (PFC) skill
Art is come into being.It is absolute to obtain sine wave in voltage input end that traditional active PFC technology usually requires a rectification bridge joint
Value signal is as current reference.Further to promote pfc circuit efficiency, industry and academia propose a variety of non-bridge PFC topologys,
Achieve the purpose that reduce conduction loss by removing the rectifier bridge of input terminal.Wherein totem non-bridge PFC topology component is just
The feature that its quantity is few, common-mode noise is low, has a good application prospect.
At the same time, the AC/DC circuit being connected with grid side is (positive to use in addition to the function of needing to realize that power factor (PF) is 1
Rate of doing work factor correction is reversely used as parallel network reverse), exchange side power contains biggish two times of power frequency components, therefore double
To needing big storage capacitor to carry out power decoupled between AC/DC circuit and two-way DC/DC circuit.Big capacity electrolyte capacitor is deposited
The reduction of system cost and the raising of power density are being not only limited, while electrolytic capacitor is as the main member for influencing the service life
Part has extremely crucial influence to the reliability of AC/DC converter.Therefore, power decoupled technology is always multiple in recent years
The hot research problem in field.
It is most of both for single circuit topology and control strategy exhibition at present in the existing research work of PFC technology
It opens, to improve the performance and control method of system.Used Research Thinking is also mainly to certain primary circuit in single direction
Under work optimize, or by plus outside circuit and control realize functions expanding.The skill obtained by this thinking
Art scheme usually in the presence of increased costs are caused, is disagreed with nowadays high power applications occasion.It is any additional the present invention is directed to be not added
Realize power decoupled on the basis of active device and sensor cost, improve the service life of converter, reduce passive element at
This.
Summary of the invention
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide a kind of applied to totem pillar
Non-bridge PFC topology is multiplexed adaptive power decoupling control method.
In order to solve the technical problem, solution of the invention is:
It is applied to totem pillar non-bridge PFC topology the present invention provides one kind and is multiplexed adaptive power decoupling control circuit,
Including the totem pillar non-bridge PFC circuits being set in single stage type AC/DC variator or the two-way AC/DC variator of stage type, by rising
Voltage inductance L1, four switching tube S1~4With bus capacitor CbusComposition；In voltage on line side vgCathode side and totem pillar non-bridge PFC
One is accessed between the bridge arm of circuit by decoupling capacitance C2With decoupling inductance L2The decoupling branch being connected in series, the decoupling branch is also
With being connected to complete machine；Switching tube S1~4Form bridgeless Boost PFC topology, the switching tube S of one of bridge arm1~2Serve as PFC bridge
Arm, work is under switching frequency for realizing PFC function；The switching tube S of another bridge arm3~4Power frequency pipe is served as, is re-used simultaneously
Buck circuit is constituted with the decoupling branch, switch motion can will be originally by bus capacitor CbusThe voltage ripple of receiving turns
Move on to decoupling capacitance C2On, decouple inductance L2Then it is used for energy snubber；Each switching tube is connect with controller by signal wire, by
The latter's generation circuit signal controls the switching tube action in each bridge arm.
Invention further provides the decoupling control implementation method based on aforementioned adaptive power decoupling control circuit, packets
Include following steps:
(1) within each control period, controller detects current circuit state, and according to circuit state and external transmission
Or the reference signal generation circuit of internal preset controls signal, guarantees that circuit stability operates in normal PFC working condition；
(2) it detects busbar voltage and is sent to controller, decoupling voltage reference value is calculated for controlling and solving by it
Coupling branch constitutes the switching tube action of Buck circuit being re-used in bridge arm, and the ripple that bus bar side is born is transferred to decoupling capacitance
C2On.
In the present invention, when load changes, controller carries out adaptive decoupling function according to bearing power situation of change
Rate control, to guarantee that the busbar voltage ripple for being transferred to decoupling branch is constant, to realize accurate decomposition；It specifically includes:
Controller compares the busbar voltage v of current control perioddcWith busbar voltage reference value vdc *: work as vdcGreater than vdc *When,
(vdc *-vdc) sin (2 ω t) perseverance less than 0；Work as νdcLess than vdc *When, (vdc *-vdc) sin (2 ω t) is permanent is greater than 0；Work as vdcEqual to vdc *
When, (vdc *-vdc) sin (2 ω t) be equal to 0；Introduce PI compensation tache on this basis to accurately track with reference to decoupling voltage fluctuation
Benchmark Vref_ripple, that is, it is able to achieve the floating output of voltage fluctuation, guarantee obtains accurate decoupling effect.
In the present invention, include: in the controller
Sampling unit samples input voltage, input current and busbar voltage from power grid；
Phase locking unit carries out locking phase to voltage on line side, to obtain the phase of voltage on line side；
Busbar voltage fluctuation value is multiplied by multiplication unit with the result that phase locking unit converts, and compensated network is referred to
Decouple voltage fluctuation benchmark Vref_ripple；And
Voltage computation unit is decoupled, the reference obtained according to multiplication unit decouples voltage fluctuation to calculate final decoupling capacitance
The open loop of voltage refers to vref_c。
In the present invention, the reference signal of the external transmission or internal preset refers to: net side input voltage, net side input electricity
Stream, bus bar side output voltage and the target value with reference to decoupling voltage fluctuation state.
In the present invention, controller obtains the external transmission or the reference of internal preset by wired or wireless communication mode
Signal；Wired communication mode refers to CAN, optical fiber or ethernet communication mode, and communication refers to WiFi, ZigBee, indigo plant
Tooth or over the horizon communication system.
Inventive principle description:
The present invention combines the concept of topology multiplexing, and the angle filled is ground from system, is running in concern AC/DC converter
When working mechanism while, attempt to realize the functions expanding in terms of power decoupled and performance optimization using idle circuit.
It is added to it in work of circuit by reasonably designing, to realize one direction electricity by the theoretical research of topology multiplexing
Not available function in road or single stage type structure operation.Since converter inherently has the software and hardware of bi-directional power flow
Configuration requirement, therefore can guarantee that this multiplexing not will increase system hardware and software cost substantially, but the function of system, property can be made
It can be significantly improved.The control method is modified by the way that busbar voltage side wave is dynamic, guarantees to refer to when changed power
Accurately tracking for decoupling fluctuation, does not need additionally to add active device and sample circuit.
Compared with prior art, the beneficial effects of the present invention are:
(1) control method of the invention has taken into account power decoupled and power factor emendation function, extra has in no increase
The reduction of bus capacitor capacitance is realized under conditions of source device and sensor；It can reduce device cost, improve complete machine power
Density.
(2) of the invention within each control period, PFC control carries out simultaneously with decoupling control, independent and mutual mutually
It restrains, not only ensure that original PFC function, but also bus capacitor appearance can be reduced on the basis of not adding active device and sensor
Value realizes power decoupled.
(3) external reference signal that either communications are obtained, or the reference for controller internal preset
Signal, control method of the invention can be transported with the variation of quick response reference signal, the circuit of self adaptive control AC/DC circuit
Row state realizes the function of power decoupled.
(4) control method of the invention is equally applicable to the inverter mode of the topology, i.e., it is double not influence script AC/DC circuit
To the performance (forward direction is used as Active PFC, is reversely used as parallel network reverse) of work, the two-way flow of energy may be implemented.
Detailed description of the invention
Fig. 1 is totem pillar non-bridge PFC converter decoupling topology and its controller schematic diagram mentioned in the present invention.
Fig. 2 is the stream of the totem pillar non-bridge PFC converter adaptive power Uncoupling Control Based mentioned in the present invention
Cheng Tu.
Specific embodiment
With reference to the accompanying drawing, specific implementation of the invention is described.
The totem pillar non-bridge PFC topology of the present invention that is applied to is multiplexed adaptive power decoupling control circuit, including sets
Totem pillar non-bridge PFC circuits in single stage type AC/DC variator or the two-way AC/DC variator of stage type, by boost inductance
L1, four switching tube S1~4With bus capacitor CbusComposition (although stage type structure number of devices is more, compensates for single stage type knot
The disadvantage that structure control is complicated, isolation is difficult, battery junction capacitor is big etc., is the topological structure of present mainstream).In voltage on line side
vgCathode side and totem pillar non-bridge PFC circuits bridge arm between access one by decoupling capacitance C2With decoupling inductance L2Series connection
Made of decouple branch, the decoupling branch is with being also connected to complete machine；Switching tube S1~4Bridgeless Boost PFC topology is formed, one of them
The switching tube S of bridge arm1~2PFC bridge arm is served as, work is under switching frequency for realizing PFC function；The switching tube of another bridge arm
S3~4Power frequency pipe is served as, while being re-used and the decoupling branch constitutes Buck circuit, switch motion can will be originally by bus
Capacitor CbusThe voltage ripple of receiving is transferred to decoupling capacitance C2On, decouple inductance L2Then it is used for energy snubber；Each switching tube with
Controller is connected by signal wire, and the switching tube action in each bridge arm is controlled by the latter's generation circuit signal.
In decoupling branch, decoupling capacitance C2The ripple to come is shifted for smooth busbar voltage, decouples inductance L2Play energy
Measure the effect of buffering.The branch and busbar voltage and B bridge arm form Buck circuit, it is therefore an objective to be multiplexed two switches of B bridge arm
Pipe, the secondary ripple wave in busbar voltage is transferred on decoupling capacitance.Since increased decoupling capacitance capacitance is far smaller than original
The capacitance of bus capacitor can reduce device cost, improve complete machine power density.
In Fig. 1, vgAnd igIt is net side alternating voltage and electric current, v respectivelydcAnd vcIt is bus capacitor C respectivelybusWith decoupling branch
Road capacitor C2On voltage.Switching tube S1~4Bridgeless Boost PFC topology is formed, wherein the S of A bridge arm1~2PFC bridge arm is served as, it is high
Frequency work realizes PFC function, L in switching frequency1It is the boost inductance in pfc circuit；The S of B bridge arm3~4It is originally used for power frequency pipe,
This multiplexing makees high-frequency tube and in voltage on line side vgCathode and complete machine ground between LC series arm constitute Buck circuit, switch
The voltage ripple that script bus capacitor is born is transferred to decoupling capacitance C by movement2On, L2Make energy snubber.The ginseng of outside transmission
It examines signal and is transferred to controller from outside by communication equipment.
To realize topology multiplexing, the distribution of need to make rational planning for PFC duty ratio and decoupling branch duty ratio.PFC control is adopted
With classical Average Current Control, i.e., busbar voltage, voltage on line side and electric current is detected by sample circuit and are input in controller, controlled
Device processed generates PFC bridge arm S according to the reference signal of the current circuit state detected and external transmission or internal preset1And S2's
Driving signal.It decouples branch and busbar voltage is detected by sample circuit, self adaptation straightening is realized according to changed power, quickly
Variation of the response with reference to decoupling fluctuation signal.Due to sharing one group of bridge arm, the sum of PFC and the duty ratio for decoupling the two are no more than
1, the intermediate addition dead time that particularly switched in practical applications according to the switching characteristic of switching tube in upper and lower switching tube,
Therefore the drive signal duty cycle in practical application is slightly less than 1.
Power can be transferred on decoupling capacitance by the method for the invention using the bridge arm in original topology, to subtract
The ripple voltage at small bus capacitor both ends, and then reduce bus capacitor capacitance.Steps are as follows for its control strategy:
(1) within each control period, controller detects current circuit state, and according to circuit state and external transmission
Or the reference signal generation circuit of internal preset controls signal, guarantees that circuit stability operates in normal PFC working condition；
Within each control period, PFC control carries out simultaneously with decoupling control, mutual independence and checks and balance, both protected
Original PFC function has been demonstrate,proved, and bus capacitor capacitance can be reduced on the basis of not adding active device and sensor, has realized power
Decoupling.
(2) it detects busbar voltage and is sent to controller, decoupling voltage reference value is calculated for controlling and solving by it
Coupling branch constitutes the switching tube action of Buck circuit being re-used in bridge arm, and the ripple that bus bar side is born is transferred to decoupling capacitance
C2On.
(3) when load changes, controller carries out adaptive decoupling power control according to bearing power situation of change,
To guarantee that the busbar voltage ripple for being transferred to decoupling branch is constant, to realize accurate decomposition；It specifically includes:
Controller compares the busbar voltage v of current control perioddcWith busbar voltage reference value vdc *: work as vdcGreater than vdc *When,
(vdc *-vdc) sin (2 ω t) perseverance less than 0；Work as vdcLess than vdc *When, (vdc *-vdc) sin (2 ω t) is permanent is greater than 0；Work as vdcEqual to vdc *
When, (vdc *-vdc) sin (2 ω t) be equal to 0；Introduce PI compensation tache on this basis to accurately track with reference to decoupling voltage fluctuation
Benchmark Vref_ripple, that is, it is able to achieve the floating output of voltage fluctuation, guarantee obtains accurate decoupling effect.
Since the control of decoupling voltage is no feedback open loop control, in order to keep busbar voltage ripple not in changed power
Become, needs to decouple voltage fluctuation benchmark V to referenceref_rippleIt is modified.Fig. 2 is to Vref_rippleControl after being modified
Strategic process figure, sin (2 ω t) are that net surveys voltage vgThe two frequency multiplication sinusoid fiducials obtained through phaselocked loop.Work as vdcLess than vdc *When,
(vdc *-vdc) and sin (2 ω t) opposite in phase；Work as vdcGreater than vdc *When, (vdc *-vdc) with sin (2 ω t) same to phase；Work as vdcIt is equal to
vdc *When, (vdc *-vdc) it is equal to 0.Therefore, it can be introduced directly into product term (ν in the time domaindc *-νdc) sin (2 ω t), to circuit
Optimal energy allocation is made in instantaneous power variation.It generally can input voltage to power grid, defeated in traditional totem pillar pfc circuit
Enter electric current and busbar voltage is sampled, and decoupling of the present invention strategy is adopted without additional decoupling branch voltage or electric current
Sample only need to can be achieved with accurate decoupling effect by the detection to busbar voltage ripple.
Include: sampling unit in the controller, to input voltage, input current and busbar voltage from power grid into
Row sampling；Phase locking unit carries out locking phase to voltage on line side, to obtain the phase of voltage on line side；Multiplication unit, by busbar voltage
Undulating value is multiplied with the result that phase locking unit converts, and compensated network is obtained with reference to decoupling voltage fluctuation Vref_ripple；And solution
Coupling voltage computation unit, the reference obtained according to multiplication unit decouple voltage fluctuation to calculate the open loop of final decoupling capacitance voltage
With reference to vref_c.The reference signal of external transmission or internal preset that controller uses refers to: net side input voltage, net side input electricity
Stream, bus bar side output voltage and the target value with reference to decoupling voltage fluctuation state.Controller passes through wired or wireless communication mode
Obtain the reference signal of the external transmission or internal preset；Wired communication mode refers to CAN, optical fiber or ethernet communication side
Formula, communication refer to WiFi, ZigBee, bluetooth or over the horizon communication system.In the present invention, the working principle of controller and
Step is the prior art, and those skilled in the art can skillfully grasp according to its technical ability, and the present invention repeats no more.
Claims (6)
1. one kind, which is applied to totem pillar non-bridge PFC topology, is multiplexed adaptive power decoupling control circuit, including is set to single stage type
Totem pillar non-bridge PFC circuits in AC/DC variator or the two-way AC/DC variator of stage type, by boost inductance L1, four open
Close pipe S1~4With bus capacitor CbusComposition；It is characterized by: in voltage on line side vgCathode side and totem pillar non-bridge PFC circuits
Bridge arm between access one by decoupling capacitance C2With decoupling inductance L2The decoupling branch being connected in series, the decoupling branch are also connected to
Complete machine；Switching tube S1~4Form bridgeless Boost PFC topology, the switching tube S of one of bridge arm1~2Serve as PFC bridge arm, work
Make under switching frequency for realizing PFC function；The switching tube S of another bridge arm3~4Power frequency pipe is served as, while being re-used and institute
It states decoupling branch and constitutes Buck circuit, switch motion can will be originally by bus capacitor CbusThe voltage ripple of receiving is transferred to
Decoupling capacitance C2On, decouple inductance L2Then it is used for energy snubber；Each switching tube is connect with controller by signal wire, by the latter
Generation circuit signal controls the switching tube action in each bridge arm.
2. the decoupling control implementation method based on adaptive power decoupling control circuit described in claim 1, which is characterized in that packet
Include following steps:
(1) within each control period, controller detects current circuit state, and according to circuit state and external transmission or interior
The preset reference signal generation circuit in portion controls signal, guarantees that circuit stability operates in normal PFC working condition；
(2) it detects busbar voltage and is sent to controller, decoupling voltage reference value is calculated for controlling and decoupling branch by it
Road constitutes the switching tube action of Buck circuit being re-used in bridge arm, and the ripple that bus bar side is born is transferred to decoupling capacitance C2
On.
3. according to the method described in claim 2, it is characterized in that, controller is according to bearing power when load changes
Situation of change carries out adaptive decoupling power control, to guarantee that the busbar voltage ripple for being transferred to decoupling branch is constant, thus real
Existing accurate decomposition；It specifically includes:
Controller compares the busbar voltage v of current control perioddcWith busbar voltage reference value vdc *: work as vdcGreater than vdc *When, (vdc *-
vdc) sin (2 ω t) perseverance less than 0；Work as vdcLess than vdc *When, (vdc *-vdc) sin (2 ω t) is permanent is greater than 0；Work as vdcEqual to vdc *When,
(vdc *-vdc) sin (2 ω t) be equal to 0；Introduce PI compensation tache on this basis to accurately track with reference to decoupling voltage fluctuation benchmark
Vref_ripple, that is, it is able to achieve the floating output of voltage fluctuation, guarantee obtains accurate decoupling effect.
4. according to the method described in claim 2, it is characterized in that, including: in the controller
Sampling unit samples input voltage, input current and busbar voltage from power grid；
Phase locking unit carries out locking phase to voltage on line side, to obtain the phase of voltage on line side；
Busbar voltage fluctuation value is multiplied by multiplication unit with the result that phase locking unit converts, and compensated network is obtained with reference to decoupling
Voltage fluctuation benchmark Vref_ripple；And
Voltage computation unit is decoupled, the reference decoupling voltage fluctuation obtained according to multiplication unit finally decouples capacitance voltage to calculate
Open loop refer to vref_c。
5. according to the method described in claim 2, it is characterized in that, the reference signal of the external transmission or internal preset is
Refer to: net side input voltage, net side input current, bus bar side output voltage and the target value with reference to decoupling voltage fluctuation state.
6. according to the method described in claim 2, it is characterized in that, controller obtained by wired or wireless communication mode it is described
The reference signal of outside transmission or internal preset；Wired communication mode refers to CAN, optical fiber or ethernet communication mode, channel radio
Letter mode refers to WiFi, ZigBee, bluetooth or over the horizon communication system.
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Application publication date: 20190719 Assignee: Zhejiang arrow network energy technology Co.,Ltd. Assignor: ZHEJIANG University Contract record no.: X2021330000017 Denomination of invention: Topology multiplexing adaptive power decoupling control method for totem pole bridgeless PFC Granted publication date: 20200519 License type: Common License Record date: 20210207 |
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