CN112260540A - Parallel current sharing method and system for resonant direct current converter - Google Patents
Parallel current sharing method and system for resonant direct current converter Download PDFInfo
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- CN112260540A CN112260540A CN202011120450.6A CN202011120450A CN112260540A CN 112260540 A CN112260540 A CN 112260540A CN 202011120450 A CN202011120450 A CN 202011120450A CN 112260540 A CN112260540 A CN 112260540A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
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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 provides a parallel current sharing method and a parallel current sharing system for a resonant direct current converter, wherein the method comprises the following steps: acquiring running state data in a half period of a parallel system of the resonant direct current converter; according to the obtained running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters; this is disclosed uses reference resonance direct current converter as the benchmark, calculates each resonance direct current converter error that flow equalizes, produces the compensation phase shift angle that flow equalizes, and the PWM drive signal who generates each resonance direct current converter with the controlled variable stack, and the realization mode is simple nimble, and expansibility is strong, is applicable to arbitrary N resonance converter scene of connecting in parallel.
Description
Technical Field
The disclosure relates to the technical field of resonant direct-current converters, and in particular relates to a parallel current sharing method and system for a resonant direct-current converter.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The resonant direct-current converter has a soft switch working state, is high in efficiency and good in electromagnetic compatibility, and is widely applied to an electric automobile charging system. However, as the demands for charging power and current are increased, and due to conditions such as device capacity and heat dissipation capability, the demands are difficult to be met by the single resonant converter, and a scheme of interleaving and connecting a plurality of resonant converter modules in parallel is required to improve the power level, reduce input and output current ripples, and reduce the number of filter capacitors.
However, in the practical application process, there are often inconsistency of device parameters, which results in unbalanced load between modules, worsened output current ripple, reduced system operation reliability, and even causes overheating and damage to the modules, and worsened safety. The invention must invent a multi-module parallel current-sharing control strategy of the resonant converter, so that each module bears load power in a balanced manner, thereby improving the running performance of the system.
The inventor of the present disclosure finds that the parallel current sharing control strategy mainly includes two parts, namely, detection of current sharing parameters between modules and compensation of control quantity. How to quantitatively characterize the uneven flow degree of the module directly restricts the current-sharing compensation effect. In the existing scheme, the method for calculating the current-sharing degree by detecting the output load current of each module cannot realize staggered parallel connection among the modules because the parallel connection points are positioned behind respective output filter capacitors, and the quantity of the output capacitors is difficult to reduce; the rectified output current of the secondary side of each module is detected by the scheme, but the pulsating current has high frequency and large amplitude, and the circuit is influenced no matter the current transformer or the current divider is adopted for measurement, so that the cost is high and the accuracy is low.
Disclosure of Invention
In order to solve the defects of the prior art, the method and the system for parallel current sharing of the resonant direct current converters are provided by the disclosure, the reference resonant direct current converter is used as a reference, current sharing errors of the resonant direct current converters are calculated, current sharing compensation phase shifting angles are generated, and PWM driving signals of the resonant direct current converters are generated by overlapping with control quantities.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
the first aspect of the disclosure provides a parallel current sharing method for a resonant direct current converter.
A parallel current sharing method for a resonant direct current converter comprises the following steps:
acquiring running state data in a half period of a parallel system of the resonant direct current converter;
and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
As some possible implementations, when the switching frequencies of the resonant dc-dc converters are the same, the specific control method is as follows:
sampling the output voltage of the reference resonant direct-current converter, comparing the sampled output voltage with the reference voltage, generating a voltage difference value, and generating a control quantity for generating a PWM (pulse width modulation) driving signal of the reference resonant direct-current converter after PI (proportional integral) compensation;
obtaining the resonant voltage peak value of each resonant direct current converter, comparing the resonant voltage equivalent peak value of each residual resonant direct current converter with the equivalent peak value of a reference resonant direct current converter, taking the difference value and generating the current-sharing compensation phase shifting angle of each residual resonant direct current converter through PI compensation;
the control quantity and the current-sharing compensation phase shift angle are synthesized and then transmitted to the driving signal modulation module, and PWM driving signals of the rest resonant direct current converters are generated.
As some possible implementation manners, when the voltage equivalent peak value of the resonant capacitor of one resonant dc converter is used as a reference value and an error between the voltage equivalent peak value of the resonant capacitor of each resonant dc converter and the reference value is smaller than a preset threshold value, it is determined that each resonant dc converter operates in a current-sharing manner.
As some possible implementations, the output current of a single resonant converter in a half cycle is positively correlated with the equivalent peak value of the resonant capacitor voltage.
By way of further limitation, the resonance capacitor voltage equivalent peak value is the product of the resonance capacitor voltage peak value and a proportionality coefficient between the actual value and the nominal value of the resonance capacitor.
By way of further limitation, the output current of a single resonant converter in a half cycle is four times the product of the switching frequency of the resonant converter, the resonant capacitor and the voltage equivalent peak value of the resonant capacitor.
As some possible realization modes, the charges flowing out of the output port of the resonance network in a half period pass through the resonance capacitor, and when the influence of loss and excitation current is neglected, the charge quantity flowing through the resonance capacitor is completely transferred to the load.
The second aspect of the disclosure provides a parallel current sharing system of a resonant direct current converter.
A parallel current sharing system for a resonant DC converter, comprising:
a data acquisition module configured to: acquiring running state data in a half period of a parallel system of the resonant direct current converter;
a current sharing control module configured to: and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
A third aspect of the present disclosure provides a computer readable storage medium, on which a program is stored, which when executed by a processor implements the steps in the parallel current sharing method for resonant dc converters according to the first aspect of the present disclosure.
A fourth aspect of the present disclosure provides an electronic device, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor executes the program to implement the steps in the parallel current sharing method for resonant dc converters according to the first aspect of the present disclosure.
Compared with the prior art, the beneficial effect of this disclosure is:
1. according to the method, the system, the medium or the electronic equipment, the voltage peak value of the resonant capacitor is measured to judge the non-uniform current degree, the detection accuracy is high, and the cost is low.
2. According to the method, the system, the medium or the electronic equipment, the reference resonant direct current converter is used as a reference, the current-sharing error of each resonant direct current converter is calculated, the current-sharing compensation phase shift angle is generated, and the control quantity is superposed to generate the PWM driving signal of each resonant direct current converter.
Advantages of additional aspects of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic diagram of a parallel current sharing control strategy architecture of a resonant converter provided in embodiment 1 of the present disclosure.
Fig. 2 shows key waveforms of the two-phase parallel system provided in embodiment 1 of the present disclosure when there is no current sharing compensation.
Fig. 3 is a key waveform of a two-phase parallel system provided in embodiment 1 of the present disclosure when a current sharing compensation control strategy based on a voltage peak of a resonant capacitor is adopted.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
Example 1:
as shown in fig. 1, an embodiment 1 of the present disclosure provides a parallel current sharing method for a resonant dc converter, including the following steps:
acquiring running state data in a half period of a parallel system of the resonant direct current converter;
and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
Specifically, a parallel system of N series resonant converters is taken as an example.
Defining each series resonant converter to be A, B-N respectively;
in half cycle, the switching frequency of a single resonant converter is fsOutput current is IoutThen, the output charge amount:
the charges flowing out from the output port of the self-resonant network in the half period pass through the resonant capacitor CrThe partial charge amount is defined as QCr. Neglecting the influence of loss and exciting current, the charge quantity flowing through the resonant capacitor is considered to be completely transferred to the load, namely Qout＝QCr. K is defined as the proportionality coefficient between the actual value and the nominal value of the resonance capacitor, VCrpFor the peak resonant capacitor voltage, then:
QCr＝2kCrVCrp (2)
therefore, the relationship between the output current of the single resonant converter and the voltage of the resonant capacitor in the half period is as follows
Iout＝4fsCrkVCrp (3)
From this equation, it can be seen that for multiple resonant converters, an interleaved system is connected in parallel, e.g.Can control the equivalent peak value kV of each resonance capacitor voltageCrpAnd if the current values are equal, the current-sharing operation of each series resonant converter can be ensured.
Definition kA、kB、kNThe ratio of the actual value to the nominal value of the resonant capacitor of each series resonant converter is 1 + -5% or 1 + -1%, VCrpA、VCrpB、VCrpNThe measured resonant capacitor voltage peak values are respectively.
The current sharing error of the series resonant converters B to N with respect to the reference series resonant converter a can be calculated as follows:
eB＝kBVCrpB-kAVCrpA (4)
···
eN＝kNVCrpN-kAVCrpA (5)
according to the formula (4) and the formula (5), as long as the difference e is ensured to be within the allowable range, the series resonant converters are considered to be operated in a current-sharing mode.
The control architecture of the current sharing compensation strategy based on the voltage peak value of the resonant capacitor is shown in fig. 1.
Taking the series resonant converters as an example, the switching frequencies of the series resonant converters are the same, and the current sharing among the series resonant converters can be realized by adding a compensation phase shift angle for each non-reference series resonant converter through adding a current sharing compensation link.
Reference series resonant converter A output voltage VoSampled and compared with a reference voltage VrefAfter comparison, a voltage difference value is generated, and after PI compensation, a control quantity D is generated for generating a PWM driving signal G of the series resonant converter AA；
At the same time, the peak value V of the resonance voltage of each series resonance converter is measured by the peak value detection circuit unit mCrpA、VCrpB、VCrpNComparing the peak values of the resonant voltages of the other series resonant converters with the peak value of the reference series resonant converter, taking the difference value, and generating the other series resonant converters by PI compensationThe current sharing compensation phase shift angle;
the control quantity D and the current-sharing compensation phase shift angle are synthesized and then transmitted to the driving signal modulation module, and PWM driving signals of other series resonant converters can be generated.
Taking a parallel system of two series resonant converters as an example, fig. 2 and 3 are simulation waveforms of no current sharing compensation and adding a new current sharing compensation method, respectively, wherein the left and right graphs are resonance capacitor voltage v under light and heavy load conditions respectivelyCrA、vCrBAnd its peak value VCrpA、VCrpB. As shown in the figure, when there is no current sharing control strategy, there is a serious non-uniform current phenomenon between two phases of the parallel system. Obviously, the proposed current-sharing control strategy can effectively solve the problem of parallel non-uniform current of the resonant converter.
Example 2:
the embodiment 2 of the present disclosure provides a parallel current sharing system of a resonant dc converter, including:
a data acquisition module configured to: acquiring running state data in a half period of a parallel system of the resonant direct current converter;
a current sharing control module configured to: and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
The working method of the system is the same as the parallel current sharing method of the resonant dc converter provided in embodiment 1, and details are not repeated here.
Example 3:
the embodiment 3 of the present disclosure provides a computer-readable storage medium, on which a program is stored, where the program, when executed by a processor, implements the steps in the parallel current sharing method for the resonant dc converters according to the embodiment 1 of the present disclosure, where the steps are:
acquiring running state data in a half period of a parallel system of the resonant direct current converter;
and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
The detailed steps are the same as the parallel current sharing method of the resonant dc converter provided in embodiment 1, and are not described again here.
Example 4:
the embodiment 4 of the present disclosure provides an electronic device, which includes a memory, a processor, and a program stored in the memory and capable of being executed on the processor, where the processor executes the program to implement the steps in the parallel current sharing method for the resonant dc converters according to the embodiment 1 of the present disclosure, where the steps are:
acquiring running state data in a half period of a parallel system of the resonant direct current converter;
and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
The detailed steps are the same as the parallel current sharing method of the resonant dc converter provided in embodiment 1, and are not described again here.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. A parallel current sharing method for a resonant direct current converter is characterized by comprising the following steps:
acquiring running state data in a half period of a parallel system of the resonant direct current converter;
and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
2. The parallel current sharing method for the resonant direct current converters according to claim 1, wherein when the switching frequencies of the resonant direct current converters are the same, the specific control method is as follows:
sampling the output voltage of the reference resonant direct-current converter, comparing the sampled output voltage with the reference voltage, generating a voltage difference value, and generating a control quantity for generating a PWM (pulse width modulation) driving signal of the reference resonant direct-current converter after PI (proportional integral) compensation;
obtaining the resonant voltage peak value of each resonant direct current converter, comparing the resonant voltage equivalent peak value of each residual resonant direct current converter with the equivalent peak value of a reference resonant direct current converter, taking the difference value and generating the current-sharing compensation phase shifting angle of each residual resonant direct current converter through PI compensation;
the control quantity and the current-sharing compensation phase shift angle are synthesized and then transmitted to the driving signal modulation module, and PWM driving signals of the rest resonant direct current converters are generated.
3. The parallel current sharing method of the resonant dc converters according to claim 1, wherein a resonant capacitor voltage equivalent peak value of one resonant dc converter is taken as a reference value, and when an error between the resonant capacitor voltage equivalent peak value of each resonant dc converter and the reference value is smaller than a preset threshold value, it is determined that each resonant dc converter performs current sharing operation.
4. The parallel current sharing method of the resonant dc converters of claim 1, wherein the output current of a single resonant converter in a half period is positively correlated to the equivalent peak value of the resonant capacitor voltage.
5. The parallel current sharing method of the resonant DC converter according to claim 4, wherein the equivalent peak value of the resonant capacitor voltage is the product of the ratio coefficient of the actual value and the nominal value of the resonant capacitor and the peak value of the resonant capacitor voltage.
6. The parallel current sharing method for the resonant direct current converters as claimed in claim 4, wherein the output current of a single resonant converter in a half period is four times the product of the switching frequency of the resonant converter, the voltage equivalent peak value of the resonant capacitor and the resonant capacitor.
7. The parallel current sharing method of the resonant dc converter according to claim 1, wherein the charges flowing from the output port of the resonant network during a half period pass through the resonant capacitor, and when the influence of the loss and the excitation current is neglected, the charge flowing through the resonant capacitor is completely transferred to the load.
8. A parallel current sharing system of a resonant DC converter is characterized by comprising:
a data acquisition module configured to: acquiring running state data in a half period of a parallel system of the resonant direct current converter;
a current sharing control module configured to: and according to the acquired running state data, controlling the voltage equivalent peak values of the resonant capacitors of the resonant direct-current converters to be the same, and performing current sharing control on the resonant direct-current converters.
9. A computer readable storage medium having a program stored thereon, where the program is to implement the steps of the parallel current sharing method of the resonant dc converter according to any of claims 1-7 when the program is executed by a processor.
10. An electronic device comprising a memory, a processor and a program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the parallel current sharing method of the resonant dc converter according to any one of claims 1 to 7.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080298093A1 (en) * | 2007-05-30 | 2008-12-04 | Taotao Jin | Multiphase resonant converter for dc-dc applications |
| CN103078515A (en) * | 2011-10-25 | 2013-05-01 | 通用电气公司 | Resonant power supply, converter controller, magnetic resonance imaging system and control method |
| US20140268907A1 (en) * | 2013-03-15 | 2014-09-18 | Power-One, Inc. | Multiphase converter with active and passive internal current sharing |
| CN104269999A (en) * | 2014-07-03 | 2015-01-07 | 华中科技大学 | Closed loop starting method for resonant converter |
| DE102014220434A1 (en) * | 2014-10-09 | 2016-04-14 | Bayerische Motoren Werke Aktiengesellschaft | Efficient DC-DC converter with a wide working range |
| US20160190940A1 (en) * | 2014-12-25 | 2016-06-30 | Delta Electronics, Inc. | Resonant dc/dc power converting circuit and method for controlling the same |
| CN105897000A (en) * | 2016-04-25 | 2016-08-24 | 陕西科技大学 | Phase shift compensation interleaved three-level LLC resonant converter |
| CN106849682A (en) * | 2017-04-18 | 2017-06-13 | 中国石油大学(华东) | A kind of three-phase crisscross parallel LLC resonant converter voltage stabilizing current-sharing control method |
| CN107258046A (en) * | 2014-07-08 | 2017-10-17 | 无线电力公司 | Resonator in wireless power transmission system is balanced |
| US20180191168A1 (en) * | 2017-01-04 | 2018-07-05 | National Instruments Corporation | Parallel Interleaved Multiphase LLC Current Sharing Control |
| CN108258914A (en) * | 2018-03-19 | 2018-07-06 | 珠海英搏尔电气股份有限公司 | Staggeredly resonant transform circuit and its control method |
| CN108418434A (en) * | 2018-04-16 | 2018-08-17 | 山东大学 | High-frequency isolation Sofe Switch DC-DC converter and modulator approach for high-power |
| CN109560711A (en) * | 2019-01-22 | 2019-04-02 | 山东大学 | A kind of isolation type bidirectional DC-DC converter and its modulator approach |
| CN208939828U (en) * | 2018-04-28 | 2019-06-04 | 西安特锐德智能充电科技有限公司 | Two-phase crisscross parallel LLC is from flow equalizing circuit |
| CN111245248A (en) * | 2020-03-23 | 2020-06-05 | 深圳市毂梁源技术有限公司 | Resonance circuit, control method of resonance circuit and equipment terminal |
-
2020
- 2020-10-19 CN CN202011120450.6A patent/CN112260540B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080298093A1 (en) * | 2007-05-30 | 2008-12-04 | Taotao Jin | Multiphase resonant converter for dc-dc applications |
| CN103078515A (en) * | 2011-10-25 | 2013-05-01 | 通用电气公司 | Resonant power supply, converter controller, magnetic resonance imaging system and control method |
| US20140268907A1 (en) * | 2013-03-15 | 2014-09-18 | Power-One, Inc. | Multiphase converter with active and passive internal current sharing |
| CN104269999A (en) * | 2014-07-03 | 2015-01-07 | 华中科技大学 | Closed loop starting method for resonant converter |
| CN107258046A (en) * | 2014-07-08 | 2017-10-17 | 无线电力公司 | Resonator in wireless power transmission system is balanced |
| DE102014220434A1 (en) * | 2014-10-09 | 2016-04-14 | Bayerische Motoren Werke Aktiengesellschaft | Efficient DC-DC converter with a wide working range |
| US20160190940A1 (en) * | 2014-12-25 | 2016-06-30 | Delta Electronics, Inc. | Resonant dc/dc power converting circuit and method for controlling the same |
| CN105790626A (en) * | 2014-12-25 | 2016-07-20 | 台达电子工业股份有限公司 | Resonant power conversion circuit and method for controlling resonant power conversion circuit |
| CN105897000A (en) * | 2016-04-25 | 2016-08-24 | 陕西科技大学 | Phase shift compensation interleaved three-level LLC resonant converter |
| US20180191168A1 (en) * | 2017-01-04 | 2018-07-05 | National Instruments Corporation | Parallel Interleaved Multiphase LLC Current Sharing Control |
| CN106849682A (en) * | 2017-04-18 | 2017-06-13 | 中国石油大学(华东) | A kind of three-phase crisscross parallel LLC resonant converter voltage stabilizing current-sharing control method |
| CN108258914A (en) * | 2018-03-19 | 2018-07-06 | 珠海英搏尔电气股份有限公司 | Staggeredly resonant transform circuit and its control method |
| CN108418434A (en) * | 2018-04-16 | 2018-08-17 | 山东大学 | High-frequency isolation Sofe Switch DC-DC converter and modulator approach for high-power |
| CN208939828U (en) * | 2018-04-28 | 2019-06-04 | 西安特锐德智能充电科技有限公司 | Two-phase crisscross parallel LLC is from flow equalizing circuit |
| CN109560711A (en) * | 2019-01-22 | 2019-04-02 | 山东大学 | A kind of isolation type bidirectional DC-DC converter and its modulator approach |
| CN111245248A (en) * | 2020-03-23 | 2020-06-05 | 深圳市毂梁源技术有限公司 | Resonance circuit, control method of resonance circuit and equipment terminal |
Non-Patent Citations (2)
| Title |
|---|
| YUNGTAEK JANG,ET AL: "A Novel Active-Current-Sharing Method for Interleaved Resonant Converters", 《2015 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC)》 * |
| 赵清林，等: "基于移相补偿的全桥 LLC 谐振变换器交错并联技术", 《电工技术学报》 * |
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