CN107994801A - A kind of cascade connection type single-stage two-way DC-AC converter topologies - Google Patents
A kind of cascade connection type single-stage two-way DC-AC converter topologies Download PDFInfo
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- CN107994801A CN107994801A CN201711294966.0A CN201711294966A CN107994801A CN 107994801 A CN107994801 A CN 107994801A CN 201711294966 A CN201711294966 A CN 201711294966A CN 107994801 A CN107994801 A CN 107994801A
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Classifications
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- 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
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention discloses a kind of cascade connection type single-stage two-way DC AC converter topologies, which is made of multiple mutually isostructural sub-modular structures, and submodule topological structure mainly includes two parts：H bridge types DC AC current transformers and the active electric power spring based on Power Electronic Technique.Per main convertor of the level-one H bridges as submodule, its DC side input port is connected in parallel with a capacitor device, source-series with input dc power afterwards；Active electric power spring between direct-current input power supplying and capacitor is connected between positive and negative anodes busbar.The present invention can reduce or eliminate H bridge current transformers DC side in the presence of the larger low-order harmonic of the amplitude as caused by power conversion using the active electric power spring structure of Repetitive controller, reduce influence of the low-order harmonic to DC power source safety, service life etc..Therefore, topology of the present invention can be applied to the occasions such as the photovoltaic plant of large-scale energy storage system and mesohigh large capacity based on chemical cell, have broad application prospects.
Description
Technical field
The invention belongs to power electronics field, and in particular to a kind of cascade connection type single-stage two-way DC-AC converter topologies
Structure.
Background technology
Fossil energy increasingly depleted, environmental problem become increasingly conspicuous and a series of problems of climate warming under the influence of, with
Regenerative resource based on wind-power electricity generation, photovoltaic etc. develops rapidly, gradually from low pressure, low capacity distributed generation unit in
High pressure, the development of high-power, large capacity power station, but the utilization of the regenerative resource of mesohigh, large capacity still face more severe
Challenge.By taking photovoltaic generation as an example, the limitation of electronic power convertor voltage class, capacity etc., single convertor are limited to
The capacity of the photovoltaic battery panel connected for hundred MW class photovoltaic plant capacity very little, it is necessary to using " unsteady flow+confluence+liter
The technical solution of pressure " or " unsteady flow+boosting+confluence " realizes the foundation of large-scale photovoltaic power station.Except current transformer quantity is more, takes
Space is larger outer, and current transformer confluence in parallel will bring a degree of circulation problem, influences the security of system, modularization cascade
Type converter plant becomes key problem in technology.
In addition, the power output of large-scale regenerative resource has intermittent and uncertainty, make its generated output difficult
Steady to ensure, safety and reliability of dispatching of power netwoks peak regulation, optimization operation and electric system etc. will be made by being directly accessed
Into adverse effect, also therefore there occurs extensive " abandon wind and abandon light " phenomenon for the main generation of electricity by new energy area in China.Effectively solve
One of approach is that the energy storage device of suitable mesohigh, large capacity is equipped with new energy resources system, plays and stabilizes fluctuation, cuts in short-term
Peak load and the effect of energy scheduling, and the voltage of energy-storage battery monomer, capacity are limited to, mesohigh, the energy storage system of large capacity
There is an urgent need for can realize the Unified Power converter plant of reactive power compensation and active power bidirectional modulation for the foundation of system.
In view of the above-mentioned problems, at present using it is more be based on modular cascade connection type converter plant, wherein with cascaded H-bridges
Based on topological structure, but in H bridge topologys in power conversion process is realized, twice larger by amplitude is flowed through on direct current side bus
The power pulsations of fundamental frequency；And the pulsation of higher magnitude is reducing the same of the service life of photovoltaic cell and energy-storage battery
When, also the security for making photovoltaic plant or energy-storage system, reliability are largely reduced, add the holistic cost of system
And security risk.In addition, using the Two Stages technical solution of DC-DC+DC-AC mostly at present, preceding stage DC-DC is realized to twice
The power pulsations of fundamental frequency are suppressed, but this method is limited to the inhibition of power pulsations, and are added substantial amounts of
Power switch pipe and passive device, the overall operation efficiency for reducing system.
The content of the invention
In view of it is above-mentioned, the present invention provides a kind of cascade connection type single-stage two-way DC-AC converter topologies, it can realize list
Mesohigh/high capacity of machine device, while eliminate the power arteries and veins of higher magnitude existing for Cascade H bridge type topological structure DC side
It is dynamic, the occupied space of device is integrally reduced, improves energy conversion efficiency.
A kind of cascade connection type single-stage two-way DC-AC converter topologies, for single-phase or three-phase structure and any phase is by more
The identical sub-module cascade of a structure forms；The submodule include an active electric power spring, a dc-link capacitance and
One H bridge type DC-AC current transformer, the both ends of the active electric power spring and the DC side of H bridge type DC-AC current transformers with directly
Stream bus capacitor is in parallel, the external corresponding direct-current input power supplying of positive and negative anodes of the dc-link capacitance；Each submodule passes through H
Two output ports of bridge type DC-AC AC side of converter are sequentially connected in series, and the phase is used as after one end connection filter inductance after series connection
The first output terminal, second output terminal of the other end as the phase after series connection.
Further, the active electric power spring includes two the power switch tube S with anti-paralleled diode1~S2, inductance
LesWith capacitance Ces；Wherein, inductance LesOne end be connected with the cathode of dc-link capacitance, inductance LesThe other end opened with power
Close pipe S1Collector and power switch tube S2Emitter be connected, power switch tube S2Collector and capacitance CesCathode
It is connected, power switch tube S1Emitter and capacitance CesAnode and the anode of dc-link capacitance be connected, power switch pipe
S1And S2Base stage connect respectively external equipment offer a pair of of phase complements switching signal.
Further, when the cascade connection type single-stage two-way DC-AC converter topologies are three-phase structure, the of three-phase
Two output terminals are connected in a manner of Y types.
Further, the H bridge types DC-AC current transformers include four the power switch tube S with anti-paralleled diode3~S6；
Wherein, power switch tube S3Collector and power switch tube S5Collector and the cathode of dc-link capacitance be connected, power
Switching tube S3Emitter and power switch tube S4Collector be connected and be used as one of H bridge type DC-AC AC side of converter it is defeated
Exit port, power switch tube S5Emitter and power switch tube S6Collector be connected and be used as H bridge type DC-AC current transformers hand over
Flow another output port of side, power switch tube S4Emitter and power switch tube S6Emitter and dc bus electricity
The anode of appearance is connected, four power switch tube Ss3~S6Base stage connect external equipment offer switching signal, power switch tube S3
And S4Switching signal phase complements, power switch tube S5And S6Switching signal phase complements.
Converter topologies of the present invention are by the main power converters of Cascade H bridge type DC-AC and based on Power Electronic Technique
Electric power spring assembly forms, can be right while the two-way flow of the active power of DC side and exchange side, reactive power is realized
The power pulsations of twice of fundamental frequency are eliminated existing for Cascade H bridge type topology DC side, due to only being carried out to pulsating power
Processing, the whole efficiency of system are highly improved compared to two-stage topology, and it is big to be applicable to large-scale photovoltaic power station, mesohigh
The occasions such as capacity batteries energy-accumulating power station, have broad application prospects；Particular technique advantage be comprising it is following some：
(1) converter topologies of the present invention have the characteristics that modularization, can reach mesohigh etc. by the cascade of submodule
Level (10~35kV), power grid is directly accessed without potential device；Modular construction increases the power system capacity of stand-alone device, no change
The circulation problem that stream device parallel connection is brought.
(2) present invention is by controlling the electric power spring based on Power Electronic Technique to realize to Cascade H bridge type topology direct current
The elimination of power pulsations existing for side, reduces influence of the power pulsations to DC side power supply service life, security etc..
(3) converter topologies of the present invention use single stage shift technology, save preceding stage DC-DC conversion of the prior art
Device, improves system whole efficiency, reduces installation cost.
Brief description of the drawings
Fig. 1 is the single-phase topological structure schematic diagram of cascade connection type single-stage two-way DC-AC current transformers of the present invention.
Fig. 2 is the three-phase topological structure schematic diagram of cascade connection type single-stage two-way DC-AC current transformers of the present invention.
Fig. 3 is the sub-modular structure schematic diagram in converter topology of the present invention.
Fig. 4 is as submodule DC voltage grade U1=U2=UNCascade connection type two-way DC-AC current transformers submodule during=600V
Block DC side current fluctuation schematic diagram.
Fig. 5 is the output voltage waveforms of the 10kV/10MW energy-storage systems based on the two-way DC-AC current transformers of cascade connection type of the present invention
Schematic diagram.
Fig. 6 is the active power dynamic of the 10kV/10MW energy-storage systems based on the two-way DC-AC current transformers of cascade connection type of the present invention
Waveform diagram.
Embodiment
In order to more specifically describe the present invention, below in conjunction with the accompanying drawings and embodiment is to technical scheme
It is described in detail.
As shown in Figure 1, cascade connection type single-stage two-way DC-AC converter topologies of the present invention, per mutually identical by N number of structure
Sub-module cascade is composed, each submodule mainly includes H bridge types DC-AC unsteady flows topological structure and based on power electronics skill
Active electric power spring ES two parts of art, active electric power spring are connected to direct-current input power supplying and capacitor C1Between dc bus
Positive and negative interpolar.
Active electric power spring topological structure includes the first power switch tube S1, the second power opens the light pipe S2, working inductance device
LesWith working capacitor Ces；Its connection mode is：Working inductance LesOne end be connected on dc bus cathode, the other end with
Device for power switching S1Drain electrode and device for power switching S2Source electrode be connected；Device for power switching S1Source electrode be connected to
On dc bus anode；Device for power switching S2Drain electrode and working capacitor CesPositive ends be connected；Working capacitor Ces
Negative polarity end be connected with dc bus anode.
Cascade H bridge type DC-AC types current transformer filters out capacitor C including higher hamonic wave1, the 3rd power switch tube S3, the 4th work(
Rate switching tube S4, the 5th power switch tube S5, the 6th power switch tube S6；Its connection mode is：3rd power switch tube S3Source
Pole and the 4th power switch tube S4Drain electrode be connected and form left bridge arm；5th power switch tube S5Source electrode and the 6th power switch
Pipe S6Drain electrode be connected and form right bridge arm；Left bridge arm is parallel to higher hamonic wave with right bridge arm and filters out capacitor C1；3rd power is opened
Close pipe S3With the 4th power switch tube S4The left bridge arm connection output inductor device L of compositionfAs cascade connection type single-stage two-way DC-
One output terminal of AC current transformers, and the 5th power switch tube S5With the 6th power switch tube S6The right bridge arm formed is connected to down
The left bridge arm of one H bridge, with this rule cascade to the last level-one H bridges, and by afterbody H bridges right bridge arm as cascade connection type
Another output terminal of single-stage two-way DC-AC current transformers.
As shown in Fig. 2, the three-phase topology of cascade connection type single-stage two-way DC-AC current transformers of the present invention is identical such as Fig. 1 by three
The single-phase topology of shown cascade connection type single-stage DC-AC current transformers is composed, and three single-phase topological output terminals are connected in a manner of Y types
Connect.
Emulated using sub-modular structure as shown in Figure 3, wherein parameter is：U1=U2=UN=600V, Les=1mH,
Ces=4.5mF, C1=800 μ F.Put at the 0.1s moment by power switch tube S1, power switch tube S2, working inductance Les, work
Capacitance CesForm active electric power spring；Fig. 4 gives the waveform of DC side electric current dynamic change, is as can be seen from Figure 4 throwing
Before entering active electric power spring, the pulsation electricity of twice larger of fundamental frequency of amplitude is also flowed through on direct current side bus in addition to DC current
Stream, after putting into electric power spring, electric current only retains DC component, it can be seen that the input of electric power spring can be prevented effectively twice
Fundamental frequency pulsating current enters DC power supply, so as to reduce thus caused DC power supply service life, security etc.
The problem of.
Fig. 5 is the output voltage ripple of the 10kV/10MW energy-storage systems based on the two-way DC-AC current transformers of cascade connection type of the present invention
Shape, from figure 5 it can be seen that voltage waveform is more level forms, waveform is good.
Fig. 6 is the 10kV/10MW energy-storage system active power dynamic waves based on the two-way DC-AC current transformers of cascade connection type of the present invention
Shape；The perunit value of energy-storage system active power of output is 0.8.pu in 0~4s times, i.e., active power of output is 8MW；The 4s moment
Power instruction sports -0.4.pu, it can be seen that waveform transient process is very short, and energy-storage system absorbs wattful power from power grid after stablizing
Rate 4MW；8s moment power instructions sport 0.8.pu, and energy storage system discharges power is 8MW；12s moment energy-storage systems are adjusted to
Charge and charge power is 4MW；It can be seen from the above that cascade connection type single-stage two-way DC-AC converter topologies of the present invention can realize power
Two-way flow.
Cascade connection type single-stage two-way DC-AC converter topologies of the present invention can realize the two-way flow of energy, while can be with
Realization effectively eliminates twice of the fundamental frequency current fluctuation of DC side of Cascade H bridge type topology, available for large-scale photovoltaic power station
With the occasion such as the battery energy storage system of mesohigh/large capacity, it is with a wide range of applications.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using the present invention.
Person skilled in the art obviously easily can make above-described embodiment various modifications, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel disclose according to the present invention, and the improvement and modification made for the present invention all should be in protection scope of the present invention
Within.
Claims (4)
1. a kind of cascade connection type single-stage two-way DC-AC converter topologies, are single-phase or three-phase structure；It is characterized in that：It is any
Mutually formed by the identical sub-module cascade of multiple structures；The submodule includes an active electric power spring, a direct current mother
Line capacitance and a H bridge type DC-AC current transformer, the both ends of the active electric power spring and the direct current of H bridge type DC-AC current transformers
Side is in parallel with dc-link capacitance, the external corresponding direct-current input power supplying of positive and negative anodes of the dc-link capacitance；Each son
Module is sequentially connected in series by H bridge type DC-AC two output ports of AC side of converter, after one end connection filter inductance after series connection
As the first output terminal of the phase, second output terminal of the other end as the phase after series connection.
2. cascade connection type single-stage two-way DC-AC converter topologies according to claim 1, it is characterised in that：It is described to have
Source electric power spring includes two the power switch tube S with anti-paralleled diode1~S2, inductance LesWith capacitance Ces；Wherein, inductance Les
One end be connected with the cathode of dc-link capacitance, inductance LesThe other end and power switch tube S1Collector and power open
Close pipe S2Emitter be connected, power switch tube S2Collector and capacitance CesCathode be connected, power switch tube S1Emitter
With capacitance CesAnode and the anode of dc-link capacitance be connected, power switch tube S1And S2Base stage connect external equipment respectively
The switching signal of a pair of of phase complements of offer.
3. cascade connection type single-stage two-way DC-AC converter topologies according to claim 1, it is characterised in that：When described
When cascade connection type single-stage two-way DC-AC converter topologies are three-phase structure, the second output terminal of three-phase is connected in a manner of Y types.
4. cascade connection type single-stage two-way DC-AC converter topologies according to claim 1, it is characterised in that：The H bridges
Type DC-AC current transformers include four the power switch tube S with anti-paralleled diode3~S6；Wherein, power switch tube S3Current collection
Pole and power switch tube S5Collector and the cathode of dc-link capacitance be connected, power switch tube S3Emitter and power
Switching tube S4Collector be connected and be used as an output port of H bridge type DC-AC AC side of converter, power switch tube S5's
Emitter and power switch tube S6Collector be connected and be used as another output port of H bridge type DC-AC AC side of converter,
Power switch tube S4Emitter and power switch tube S6Emitter and the anode of dc-link capacitance be connected, four power
Switching tube S3~S6Base stage connect external equipment offer switching signal, power switch tube S3And S4Switching signal phase it is mutual
Mend, power switch tube S5And S6Switching signal phase complements.
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| CN201711294966.0A CN107994801A (en) | 2017-12-08 | 2017-12-08 | A kind of cascade connection type single-stage two-way DC-AC converter topologies |
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| CN201711294966.0A CN107994801A (en) | 2017-12-08 | 2017-12-08 | A kind of cascade connection type single-stage two-way DC-AC converter topologies |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066727A (en) * | 2018-08-10 | 2018-12-21 | 东南大学 | Electric power spring voltage control method based on Repetitive controller and state feedback |
| CN111345889A (en) * | 2020-03-30 | 2020-06-30 | 四川锦江电子科技有限公司 | Pulse generation circuit applied to pulsed electric field ablation technology and control method |
| CN111419383A (en) * | 2020-03-30 | 2020-07-17 | 四川锦江电子科技有限公司 | Combined pulse generation circuit and method applied to pulsed electric field ablation technology |
| CN112701944A (en) * | 2020-03-26 | 2021-04-23 | 南京理工大学 | Topology structure and control strategy of multi-level converter based on split power unit |
| CN113595431A (en) * | 2021-08-07 | 2021-11-02 | 青岛大学 | Cascaded H-bridge Buck type high-frequency link single-stage multi-input bidirectional DC/AC converter |
| CN115622376A (en) * | 2022-11-16 | 2023-01-17 | 西安奇点能源股份有限公司 | Cascade type energy storage converter system with function of inhibiting leakage current and control method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100085784A1 (en) * | 2008-10-03 | 2010-04-08 | Hung-Liang Chou | Ripple Voltage Suppression Method for DC/DC Converter and Apparatus Thereof |
| CN102025145A (en) * | 2010-11-27 | 2011-04-20 | 南京航空航天大学 | Bidirectional chopper-based direct current active power filter and control method thereof |
| CN103280829A (en) * | 2013-04-26 | 2013-09-04 | 上海交通大学 | Isolation double-stage chain type current transformer applied to energy storage of high-capacity battery |
| CN203251228U (en) * | 2013-04-11 | 2013-10-23 | 中国电子科技集团公司第十四研究所 | Bidirectional energy storage converter |
| CN103401463A (en) * | 2013-07-25 | 2013-11-20 | 天津大学 | Miniature photovoltaic grid-connected inverter with optimized DC (Direct Current) bus capacitor and control method |
| CN103457271A (en) * | 2013-08-02 | 2013-12-18 | 上海交通大学 | Chained static synchronous compensator with active power adjusting capacity and cascading unit thereof |
| CN105429466A (en) * | 2015-12-03 | 2016-03-23 | 北京赛思亿电气科技有限公司 | High voltage direct current power supply adopting cascade structure |
| CN106655862A (en) * | 2015-11-02 | 2017-05-10 | 南京航空航天大学 | Ripple suppressing non-isolated inverter and control method thereof |
| CN106877726A (en) * | 2017-03-30 | 2017-06-20 | 上海交通大学 | A kind of control method of the accumulation energy type converter topology with fault ride-through capacity |
-
2017
- 2017-12-08 CN CN201711294966.0A patent/CN107994801A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100085784A1 (en) * | 2008-10-03 | 2010-04-08 | Hung-Liang Chou | Ripple Voltage Suppression Method for DC/DC Converter and Apparatus Thereof |
| CN102025145A (en) * | 2010-11-27 | 2011-04-20 | 南京航空航天大学 | Bidirectional chopper-based direct current active power filter and control method thereof |
| CN203251228U (en) * | 2013-04-11 | 2013-10-23 | 中国电子科技集团公司第十四研究所 | Bidirectional energy storage converter |
| CN103280829A (en) * | 2013-04-26 | 2013-09-04 | 上海交通大学 | Isolation double-stage chain type current transformer applied to energy storage of high-capacity battery |
| CN103401463A (en) * | 2013-07-25 | 2013-11-20 | 天津大学 | Miniature photovoltaic grid-connected inverter with optimized DC (Direct Current) bus capacitor and control method |
| CN103457271A (en) * | 2013-08-02 | 2013-12-18 | 上海交通大学 | Chained static synchronous compensator with active power adjusting capacity and cascading unit thereof |
| CN106655862A (en) * | 2015-11-02 | 2017-05-10 | 南京航空航天大学 | Ripple suppressing non-isolated inverter and control method thereof |
| CN105429466A (en) * | 2015-12-03 | 2016-03-23 | 北京赛思亿电气科技有限公司 | High voltage direct current power supply adopting cascade structure |
| CN106877726A (en) * | 2017-03-30 | 2017-06-20 | 上海交通大学 | A kind of control method of the accumulation energy type converter topology with fault ride-through capacity |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066727A (en) * | 2018-08-10 | 2018-12-21 | 东南大学 | Electric power spring voltage control method based on Repetitive controller and state feedback |
| CN112701944A (en) * | 2020-03-26 | 2021-04-23 | 南京理工大学 | Topology structure and control strategy of multi-level converter based on split power unit |
| CN112701944B (en) * | 2020-03-26 | 2022-08-16 | 南京理工大学 | Topology structure and control strategy of multi-level converter based on split power unit |
| CN111345889A (en) * | 2020-03-30 | 2020-06-30 | 四川锦江电子科技有限公司 | Pulse generation circuit applied to pulsed electric field ablation technology and control method |
| CN111419383A (en) * | 2020-03-30 | 2020-07-17 | 四川锦江电子科技有限公司 | Combined pulse generation circuit and method applied to pulsed electric field ablation technology |
| CN111419383B (en) * | 2020-03-30 | 2021-08-10 | 四川锦江电子科技有限公司 | Combined pulse generation circuit and method applied to pulsed electric field ablation technology |
| CN113595431A (en) * | 2021-08-07 | 2021-11-02 | 青岛大学 | Cascaded H-bridge Buck type high-frequency link single-stage multi-input bidirectional DC/AC converter |
| CN113595431B (en) * | 2021-08-07 | 2024-03-12 | 青岛大学 | Cascaded H-bridge Buck type high-frequency link single-stage multi-input bidirectional DC/AC converter |
| CN115622376A (en) * | 2022-11-16 | 2023-01-17 | 西安奇点能源股份有限公司 | Cascade type energy storage converter system with function of inhibiting leakage current and control method |
| CN115622376B (en) * | 2022-11-16 | 2023-06-06 | 西安奇点能源股份有限公司 | Cascade type energy storage converter system capable of inhibiting leakage current and control method |
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