CN103280984B - Cascade connection type current transformer based on single-stage power conversion module - Google Patents
Cascade connection type current transformer based on single-stage power conversion module Download PDFInfo
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Abstract
Cascade connection type current transformer of the present invention based on single-stage power conversion module, multiple main power circuits being made up of the cascade of several power conversion modules are provided, additionally provides that the three-phase star that the cascade connection type current transformer based on single-stage power conversion module constitutes connects, corner connection and double star connect converter topologies.Have an advantage in that：The power rectifier conversion under high voltage can be completed using low pressure power switch pipe, and in circuit, electrical isolation adopts high frequency transformer, does not require the use of power frequency phase-shifting transformer.AC/DC and DC/DC Two Stages are completed using one-level power conversion circuit, and there is power factor emendation function, unit power factor rectifier is achieved, main power circuit structure is simplified, switching device quantity and circuit loss is reduced, improve system operating efficiency, small volume, lightweight, low cost, there is important using value in applications such as high-power electric and electronic transformer, high-power mesohigh AC and DC hybrid transmission systems.
Description
Technical field
The present invention relates to current transformer, more particularly to a kind of cascade connection type current transformer based on single-stage power conversion module.
Background technology
As science and technology is further improved with the fast development of the modernization of industry and the requirement to energy saving, it is applied to
The mesohigh electronic power convertor of large-power occasions plays more and more important effect on energy conservation is solved the problems, such as.Closely
Nian Lai, many level power current transformers（Multilevel Power Converter）In high-tension high-power frequency control, active
Power filter device, HVDC（HVDC）The application that the field such as transmission system and power system reactive power compensation has been succeeded.
Many level power current transformers are needed with electrical isolation function, this electrical isolation function tradition in many practical application in industry
Mode be the Industrial Frequency Transformer complicated using bulky wiring completing, this makes which be subject in the application of many industrial occasions
Limit.Thus, cancel the Industrial Frequency Transformer in traditional high-power Multilevel Inverters circuit, design no industrial frequency transformer
Multilevel Inverters circuit, it will bring revolutionary change.
At present, high frequency switch power completes the isolation transmission of power, its small volume having, weight using high frequency transformer
Amount is light, the series of advantages such as power density height so as to occupy absolute leading position in many industrial applications.High frequency
Switching Power Supply generally completes the isolated variable of AC-to DC using two conversion stages, i.e.,：AC/DC rectification stages and DC/DC
High-frequency isolation conversion stage.For high performance high frequency switch power, its AC/DC rectification stage should also have PFC work(
Can, realize unit power factor rectifier.High frequency switch power can also complete AC-to DC using conversion stages
Isolated variable, i.e., so-called single-stage power conversion.Due to only can just realize AC/DC unit power factor rectifiers with one-stage transfor-mation
With the function of DC/DC isolated variable Two Stages, therefore circuit structure be can greatly simplify, control and the modulation methods of circuit simplified
Method, these advantages all cause the high frequency switch power of single stage shift that there is good application prospect.The present invention relates to known technology
In single-stage power conversion module mainly have following several：
With reference to Fig. 1, the first power conversion modules include single-phase diode rectifier bridge, switching device, fast recovery diode,
Boost inductance, isolation high frequency transformer and its former limit filter capacitor and output DC capacitor and load.
With reference to Fig. 3, second power conversion modules include single-phase diode rectifier bridge, switching device, fast recovery diode,
Boost inductance, isolation high frequency transformer and its former limit filter capacitor and output inductor, output DC capacitor and load.
With reference to Fig. 5, the third power conversion modules include single-phase diode rectifier bridge, switching device, fast recovery diode,
Boost inductance, isolation high frequency transformer and its former limit filter capacitor, former limit auxiliary induction and output DC capacitor and load.
With reference to Fig. 7, the 4th kind of power conversion modules include a single-phase diode rectifier bridge, one be made up of switching device
H bridges, fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter capacitor and output inductor, defeated
Go out DC capacitor and load.
With reference to Fig. 9, the 5th kind of power conversion modules include two single-phase diode rectifier bridges, one be made up of switching device
H bridges, fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter capacitor and inductance and output direct current
Electric capacity and load.
High-power cascade full-control type（IGBT）H bridges electronic power convertor is widely closed in the application of large-power occasions
Note and research, its advantage is to apply low pressure electronic power switch device to complete the power conversion of high-power and make
AC has higher power factor and less harmonic wave.But required for the main circuit topological structure of the species current transformer
Switching device is more, and the loss in the main circuit course of work is larger, for the control circuit and controlling party of all switching devices
The design of method is also very complicated, and is not easily accomplished the function of single-stage power conversion.So how to simplify high-power cascade full-control type
（IGBT）The topological structure of H bridge electronic power convertors, reduces the usage quantity of switching device, simplifies the control and modulation of circuit
Method simultaneously can be operated in high-power application scenario well, and this is the current important topic in this area.
Content of the invention
The purpose of the present invention is the problems referred to above for the high-power cascaded power electronic inverter that applies at present, there is provided one
The cascade connection type current transformer based on single-stage power conversion module is planted, this current transformer can be made without using power frequency phase-shifting transformer
High-power high-frequency isolated variable is completed under high voltages with low pressure power switch pipe, it is possible to use one-level power conversion circuit
AC/DC and DC/DC Two Stages functions are completed, and there is power factor emendation function, realize unit power factor rectifier, which is led
The topological structure of power circuit is simple, and the high working efficiency of system, small volume are lightweight, low cost.
For reaching above-mentioned purpose, a kind of cascade connection type current transformer based on single-stage power conversion module that the present invention is provided, bag
Main power circuit is included, the main power circuit includes that single-stage power conversion module, single-stage power conversion module adopt the first module
Unit, first modular unit include single-phase diode rectifier bridge, switching device, fast recovery diode, boost inductance, isolation
High frequency transformer and its former limit filter capacitor and output DC capacitor and load, the main power circuit include high frequency filter
With first modular unit of N number of cascade, wherein second input of each single-phase diode rectifier bridge with next
First input of the individual single-phase diode rectifier bridge is sequentially connected, and the single-phase diode rectifier bridge for cascading up is remained
Described in two remaining ac input ends, i.e., first ac input end of the first single-phase diode rectifier bridge and n-th
Second ac input end of single-phase diode rectifier bridge accesses AC network through high frequency filter series connection, and wherein, N is for just
Integer.
Second cascade connection type current transformer based on single-stage power conversion module that the present invention is provided, wherein described single stage power
Conversion module is replaced and adopts the second modular unit, and second modular unit includes single-phase diode rectifier bridge, switching device, fast
Recovery diode, boost inductance, isolation high frequency transformer and its former limit filter capacitor and output inductor, output direct current
Hold and load.
The third cascade connection type current transformer based on single-stage power conversion module that the present invention is provided, wherein described single stage power
Conversion module replace adopt the 3rd modular unit, the 3rd modular unit include single-phase diode rectifier bridge, switching device and
Fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter capacitor, auxiliary induction and output DC capacitor
And load.
The 4th kind of cascade connection type current transformer based on single-stage power conversion module that the present invention is provided, wherein described single stage power
Conversion module replace adopt the 4th modular unit, the 4th modular unit include a single-phase diode rectifier bridge, one by
H bridges, fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter capacitor and defeated that switching device is constituted
Go out filter inductance, output DC capacitor and load, wherein, diode rectifier bridge DC output side through two parallel diodes with by complete
The H bridges AC of control type device composition is connected, one storage capacitor of H bridge DC side parallels, and it is high that the output of H bridges AC is connected to isolation
Frequency power transformer former limit, isolation high frequency transformer secondary output after diode full-wave rectifying circuit and output inductor with output
DC capacitor is connected with load.
The 5th kind of cascade connection type current transformer based on single-stage power conversion module that the present invention is provided, wherein described single stage power
Conversion module replace adopt the 5th modular unit, the 5th modular unit include two single-phase diode rectifier bridges, one by
H bridges, fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter capacitor and inductance that switching device is constituted
And output DC capacitor and load.
For reaching above-mentioned purpose, cascade connection type current transformer of the employing that the present invention is provided based on single-stage power conversion module is constituted
Three-phase star connect converter topologies, connect the three-phase main power circuit of current transformer including constituting star, the main power electricity of the three-phase
Road includes the cascade connection type current transformer described in three high frequency filters and three based on single-stage power conversion module, wherein described is based on
The remaining ac input end of the modular unit of N number of cascade totally six in the cascade connection type current transformer of single-stage power conversion module, N is
Positive integer, three ac input ends positioned at every phase constitute one group of terminals, and are located at the other three ac input end structure of every phase
Into another group of terminals, one of which wiring is terminated on a public neutral point, and another group of terminals are high with three respectively
The series connection of one of frequency wave filter accesses three phase network, constitutes Y-connection.
For reaching above-mentioned purpose, cascade connection type current transformer of the employing that the present invention is provided based on single-stage power conversion module is constituted
Three-phase corner connection converter topologies, including constituting the three-phase main power circuit of corner connection current transformer, the main power electricity of the three-phase
Road includes the cascade connection type current transformer described in three high frequency filters and three based on single-stage power conversion module, wherein described is based on
The remaining ac input end of the modular unit of N number of cascade totally six in the cascade connection type current transformer of single-stage power conversion module, N is
Positive integer, three ac input ends positioned at every phase constitute one group of terminals, and are located at the other three ac input end structure of every phase
Into another group of terminals, one of which wiring is terminated on a public neutral point, and another group of terminals are sequentially connected to three
Next phase input in phase electrical network, constitutes Angle connection.
For reaching above-mentioned purpose, cascade connection type current transformer of the employing that the present invention is provided based on single-stage power conversion module is constituted
Three-phase double star connect converter topologies, connect the three-phase main power circuit of current transformer including constituting double star, the main work(of the three-phase
Rate circuit includes that the tandem type described in three high frequency filters, six bridge arm inductance and six based on single-stage power conversion module becomes
Stream device, six cascade connection type current transformers based on single-stage power conversion module constitute two groups of Y-connections of docking, i.e., in every group of star
In shape connection, the remaining friendship of the modular unit of N number of cascade in the cascade connection type current transformer based on single-stage power conversion module
Stream input totally six, N is positive integer, and three ac input ends positioned at every phase constitute one group of terminals, and are located at every
Ac input end described in the other three of phase constitutes another group of terminals, and one group of wiring terminates to a public neutral point
On, another group of terminals are connected with one end of one of the bridge arm inductance respectively, and two institutes being located on every phase bridge arm
The other end for stating bridge arm inductance is mutually butted, and is connected to three phase network input through one of three described high frequency filters respectively,
Meanwhile, the common neutral in common neutral and second group of Y-connection in first group of Y-connection respectively with the direct current
The two ends of electric capacity are connected, and constitute double star connection.
The advantage of the cascade connection type current transformer based on single-stage power conversion module that the present invention is provided and good effect are：By
As a basic module, employ several power conversion modules and cascade up in using traditional single-stage power conversion circuit
Cascade connection type current transformer is constituted, therefore the power rectifier conversion under high voltage can be completed using low pressure power switch pipe, and
Electrical isolation in due to circuit is realized using high frequency transformer, and huge, heavy, wiring therefore need not be used complicated
Power frequency phase-shifting transformer.AC/DC and DC/DC Two Stages are completed using stage circuit conversion, and there is PFC work(
Can, it is achieved that unit power factor rectifier, the topological structure of main power circuit is simplified, the number of switching device is greatly reduced
Amount, and then the loss in circuit work is reduced, the operating efficiency of system is improve, small volume is lightweight, low cost.Cascade
Formula current transformer also has modularized design and the simple advantage of circuit structure, in high-power electric and electronic transformer, high-power
The applications such as mesohigh ac-dc-ac frequency converter have important using value.
It is described in detail below in conjunction with example referring to the drawings.
Description of the drawings
Fig. 1 is the circuit diagram of the first modular unit in cascade connection type current transformer of the present invention based on single-stage power conversion module；
Fig. 2 is the first the circuit topological structure figure of the present invention based on the cascade connection type current transformer of single-stage power conversion module；
Fig. 3 is the circuit diagram of the second modular unit in cascade connection type current transformer of the present invention based on single-stage power conversion module；
Fig. 4 is second circuit topological structure figure of the present invention based on the cascade connection type current transformer of single-stage power conversion module；
Fig. 5 is the circuit diagram of the 3rd modular unit in cascade connection type current transformer of the present invention based on single-stage power conversion module；
Fig. 6 is the third circuit topological structure figure of the present invention based on the cascade connection type current transformer of single-stage power conversion module；
Fig. 7 is the circuit diagram of the 4th modular unit in cascade connection type current transformer of the present invention based on single-stage power conversion module；
Fig. 8 is four kind circuit topological structure figure of the present invention based on the cascade connection type current transformer of single-stage power conversion module；
Fig. 9 is the circuit diagram of the 5th modular unit in cascade connection type current transformer of the present invention based on single-stage power conversion module；
Figure 10 is five kind circuit topological structure figure of the present invention based on the cascade connection type current transformer of single-stage power conversion module；
Figure 11 is that the present invention connects unsteady flow using the three-phase star that the cascade connection type current transformer based on single-stage power conversion module is constituted
Device topology diagram；
Figure 12 is the three-phase corner connection unsteady flow that the present invention is constituted using the cascade connection type current transformer based on single-stage power conversion module
Device topology diagram；
Figure 13 is that the present invention connects change using the three-phase double star that the cascade connection type current transformer based on single-stage power conversion module is constituted
Stream device topology diagram.
Specific embodiment
In example of the present invention based on the cascade connection type current transformer of single-stage power conversion module, based on single-stage power conversion mould
The cascade connection type current transformer of block is the circuit topology for being cascaded and being formed a whole by several power conversion modules.
See figures.1.and.2, in the first cascade connection type current transformer based on single-stage power conversion module, the first modular unit A
Including single-phase diode rectifier bridge, switching device and fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter
Ripple electric capacity and output DC capacitor and load.Main power circuit includes the first modular unit of high frequency filter and N number of cascade
A, wherein, N is positive integer.Wherein second ac input end of each single-phase diode rectifier bridge and next single-phase diode
First ac input end of rectifier bridge is sequentially connected, the remaining two exchanges input of the single-phase diode rectifier bridge for cascading up
Second of end, i.e. the first of first single-phase diode rectifier bridge ac input end and n-th single-phase diode rectifier bridge
Ac input end accesses AC network through high frequency filter series connection.
With reference to Fig. 3 and Fig. 4, in second cascade connection type current transformer based on single-stage power conversion module, the second modular unit B
Including single-phase diode rectifier bridge, switching device and fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter
Ripple electric capacity and output inductor, output DC capacitor and load, main power circuit include high frequency filter and N number of cascade
Second modular unit B, wherein, N is positive integer.Wherein second ac input end of each single-phase diode rectifier bridge with next
First ac input end of individual single-phase diode rectifier bridge is sequentially connected, and the single-phase diode rectifier bridge for cascading up is remaining
Two ac input ends, i.e. the first of first single-phase diode rectifier bridge ac input end are whole with n-th single-phase diode
Second ac input end of stream bridge accesses AC network through high frequency filter series connection.
With reference to Fig. 5 and Fig. 6, in the third cascade connection type current transformer based on single-stage power conversion module, the 3rd modular unit C
Including single-phase diode rectifier bridge, switching device and fast recovery diode, boost inductance, isolation high frequency transformer and its former limit filter
Ripple electric capacity, former limit auxiliary induction and output DC capacitor and load, main power circuit include high frequency filter and N number of cascade
3rd modular unit C, wherein, N is positive integer.Wherein second ac input end of each single-phase diode rectifier bridge with next
First ac input end of individual single-phase diode rectifier bridge is sequentially connected, and the single-phase diode rectifier bridge for cascading up is remaining
Two ac input ends, i.e. the first of first single-phase diode rectifier bridge ac input end are whole with n-th single-phase diode
Second ac input end of stream bridge accesses AC network through high frequency filter series connection.
With reference to Fig. 7 and Fig. 8, in the 4th kind of cascade connection type current transformer based on single-stage power conversion module, the 4th modular unit D
The H bridges that are made up of switching device including a single-phase diode rectifier bridge, one, fast recovery diode, boost inductance, isolation are high
Frequency power transformer and its former limit filter capacitor and output inductor, output DC capacitor and load, wherein, diode rectifier bridge
DC output side is connected with the H bridge ACs being made up of wholly-controled device through two parallel diodes, one energy storage of H bridge DC side parallels
Electric capacity, the output of H bridges AC are connected to isolation high frequency transformer former limit, and isolation high frequency transformer secondary is exported through diode all-wave
Rectification circuit is connected with output DC capacitor and load with after output inductor.Main power circuit includes high frequency filter and N
4th modular unit D of individual cascade, wherein, N is positive integer.Second exchange of wherein each single-phase diode rectifier bridge is input into
First ac input end with next single-phase diode rectifier bridge is held to be sequentially connected, the single-phase diode rectification for cascading up
Remaining two ac input ends of bridge, i.e. the first of first single-phase diode rectifier bridge ac input end are single-phase with n-th
Second ac input end of diode rectifier bridge accesses AC network through high frequency filter series connection.
With reference to Fig. 9 and Figure 10, in the 5th kind of cascade connection type current transformer based on single-stage power conversion module, the 5th modular unit
E includes two single-phase diode rectifier bridges, the H bridges being made up of switching device, fast recovery diode, boost inductance, an isolation
High frequency transformer and its former limit filter capacitor and inductance and output DC capacitor and load, main power circuit include High frequency filter
Device and the 5th modular unit E of N number of cascade, wherein, N is positive integer.The single-phase diode rectification of wherein each transformer primary side
First ac input end of second ac input end of bridge and the single-phase diode rectifier bridge of next transformer primary side according to
Secondary be connected, remaining two ac input ends of the single-phase diode rectifier bridge of the transformer primary side for cascading up, i.e., first change
First ac input end of the single-phase diode rectifier bridge of depressor former limit and the single-phase diode rectification of n-th transformer primary side
Second ac input end of bridge accesses AC network through high frequency filter series connection.
With reference to the three-phase that Figure 11, the present invention are constituted using the above-mentioned cascade connection type current transformer based on single-stage power conversion module
Star connects converter topologies, connects the three-phase main power circuit of current transformer including constituting star, and three-phase main power circuit includes three
High frequency filter and three cascade connection type current transformers based on single-stage power conversion module.Wherein based on single-stage power conversion module
The remaining ac input end of the modular unit of N number of cascade totally six in cascade connection type current transformer, N is positive integer.It is located at per phase
Three ac input ends constitute one group of terminals, and the other three ac input end for being located at every phase constitutes another group of terminals.Its
In one group of wiring terminate on a public neutral point, another group of terminals respectively with the series connection of one of three high frequency filters
Enter three phase network, constitute Y-connection.
With reference to the three-phase that Figure 12, the present invention are constituted using the above-mentioned cascade connection type current transformer based on single-stage power conversion module
Corner connection converter topologies, including constituting the three-phase main power circuit of corner connection current transformer, three-phase main power circuit includes three
High frequency filter and three cascade connection type current transformers based on single-stage power conversion module.Wherein based on single-stage power conversion module
The remaining ac input end of the modular unit of N number of cascade totally six in cascade connection type current transformer, N is positive integer.It is located at per phase
Three ac input ends constitute one group of terminals, and the other three ac input end for being located at every phase constitutes another group of terminals.Its
In one group of wiring terminate on a public neutral point, another group of terminals are sequentially connected to next mutually defeated in three phase network
Enter end, constitute Angle connection.
With reference to the three-phase that Figure 13, the present invention are constituted using the above-mentioned cascade connection type current transformer based on single-stage power conversion module
Double star connects converter topologies, connects the three-phase main power circuit of current transformer including constituting double star, and three-phase main power circuit includes
Three high frequency filters, six bridge arm inductance and six cascade connection type current transformers based on single-stage power conversion module.Six are based on
The cascade connection type current transformer of single-stage power conversion module constitutes two groups of Y-connections of docking, i.e., in every group of Y-connection, be based on
The remaining ac input end of the modular unit of N number of cascade totally six in the cascade connection type current transformer of single-stage power conversion module, N is
Positive integer.It is located at three ac input ends per phase and constitutes one group of terminals, and is located at the other three ac input end structure of every phase
Into another group of terminals.One group of wiring is terminated on a public neutral point, another group of terminals respectively with bridge arm inductance it
One one end is connected, and the other end of two bridge arm inductance being located on every phase bridge arm is mutually butted, and respectively through three
One of high frequency filter is connected to three phase network input.Meanwhile, the common neutral and second group of star in first group of Y-connection
Common neutral in shape connection is connected with the two ends of DC capacitor respectively, constitutes double star connection.
The described cascade connection type current transformer application circuit based on single-stage power conversion module, can simplify and be applied to big work(
The circuit topological structure of the electronic power convertor of rate occasion, the work effect that system can be improved by appropriate control strategy
Rate, has important application in applications such as high-power electric and electronic transformer, high-power mesohigh ac-dc-ac frequency converters
It is worth.
Example set out above is only that the preferred embodiment of the present invention is described, not the design to the present invention
It is defined with scope, under the premise of without departing from design of the present invention, in this area, ordinary skill technical staff is to the present invention
The various modifications made of technical scheme and improvement, protection scope of the present invention, the technology that the present invention is claimed all should be fallen into
Content, has all recorded in detail in the claims.
Claims (6)
1. a kind of cascade connection type current transformer based on single-stage power conversion module, including main power circuit, the main power circuit bag
Single-stage power conversion module is included, the single-stage power conversion module adopts the first modular unit (A), first modular unit
(A) include single-phase diode rectifier bridge, switching tube S, fast recovery diode D1, fast recovery diode D2, fast recovery diode D3,
Boost inductance Ls, isolation high frequency transformer T and former limit filter capacitor CinAnd output DC capacitor Co and output loading Ro, which is special
Levy and be：The main power circuit includes the first modular unit (A) of high frequency filter and N number of cascade, wherein each institute
State second ac input end of single-phase diode rectifier bridge to exchange with first of the next single-phase diode rectifier bridge
Input is sequentially connected, remaining two ac input ends of the single-phase diode rectifier bridge for cascading up, i.e., first institute
State first ac input end of single-phase diode rectifier bridge exchange with second of single-phase diode rectifier bridge described in n-th defeated
Entering end and AC network being accessed through high frequency filter series connection, wherein, N is positive integer；
The concrete annexation of the first modular unit (A)：AC-input voltage and the ac input end of single-phase diode rectifier bridge
Be connected, the positive output end of single-phase diode rectifier bridge is connected with one end of boost inductance Ls, the other end of boost inductance Ls with fast
The anode of recovery diode D2 is connected, and the negative electrode of fast recovery diode D2 is connected with the drain electrode of switching tube S, the source electrode of switching tube S
It is connected with the negative output terminal of single-phase diode rectifier bridge；The other end of boost inductance Ls anode phase also with fast recovery diode D1
Even, the negative electrode of fast recovery diode D1 and former limit filter capacitor CinOne end be connected, former limit filter capacitor CinThe other end with open
The source electrode for closing pipe S is connected；The negative electrode of fast recovery diode D1 is also connected with the one end for isolating high frequency transformer T former limits, and isolation is high
The other end of frequency power transformer T former limits is connected with the drain electrode of switching tube S；The different name end of isolation high frequency transformer T secondary and fast recovery
The anode of diode D3 is connected, and the negative electrode of fast recovery diode D3 is connected with the anode of output DC capacitor Co, exports direct current
The negative terminal for holding Co is connected with high frequency transformer T Same Name of Ends is isolated, and output loading Ro is connected in parallel on output DC capacitor Co two ends；
Or the single-stage power conversion module is replaced and adopts the second modular unit (B), the second modular unit (B) includes single
Diode phase rectifier bridge, switching tube S and fast recovery diode D1, D2, D3, D4, Ds, boost inductance Ls, isolation high frequency transformer T
And its former limit filter capacitor CinAnd output inductor Lm, output DC capacitor Co and output loading Ro；
The concrete annexation of the second modular unit (B)：AC-input voltage and the ac input end of single-phase diode rectifier bridge
Be connected, the positive output end of single-phase diode rectifier bridge is connected with one end of boost inductance Ls, the other end of boost inductance Ls with fast
The anode of recovery diode D4 is connected, and the negative electrode of fast recovery diode D4 is connected with the drain electrode of switching tube S, the source electrode of switching tube S
It is connected with the negative output terminal of single-phase diode rectifier bridge；The other end of boost inductance Ls anode phase also with fast recovery diode D1
Even, the negative electrode of fast recovery diode D1 and former limit filter capacitor CinOne end be connected, former limit filter capacitor CinThe other end with open
The source electrode for closing pipe S is connected；The negative electrode of fast recovery diode D1 is also connected with the one end for isolating high frequency transformer T former limits, and isolation is high
The other end of frequency power transformer T former limits is connected with the drain electrode of switching tube S；The negative electrode of fast recovery diode D1 also with isolate high frequency transformation
The different name end of device T reset windings is connected, and the Same Name of Ends of reset winding is connected with the negative electrode of fast recovery diode Ds, two poles of fast recovery
The anode of pipe Ds is connected with the source electrode of switching tube S；The Same Name of Ends of isolation high frequency transformer T secondary and the sun of fast recovery diode D2
Extremely be connected, the negative electrode of fast recovery diode D2 is connected with the negative electrode of fast recovery diode D3, the anode of fast recovery diode D3 with
The different name end of isolation high frequency transformer T secondary is connected；The negative electrode of fast recovery diode D2 also with output inductor LmOne end
Be connected, the other end of output inductor Lm with output DC capacitor Co anode be connected, export DC capacitor Co negative terminal and
Isolation high frequency transformer T different names end is connected, and output loading Ro is connected in parallel on output DC capacitor Co two ends；
Or the single-stage power conversion module is replaced and adopts the 3rd modular unit (C), the 3rd modular unit (C) includes single
Diode phase rectifier bridge, switching tube S and fast recovery diode D1, D2, D3, boost inductance Ls, isolation high frequency transformer T and its original
Side filter capacitor Cin, auxiliary induction LrAnd output DC capacitor Co and output loading Ro；
The concrete annexation of the 3rd modular unit (B)：AC-input voltage and the ac input end of single-phase diode rectifier bridge
Be connected, the positive output end of single-phase diode rectifier bridge is connected with one end of boost inductance Ls, the other end of boost inductance Ls with fast
Recovery diode DsAnode be connected, the negative electrode of fast recovery diode Ds and auxiliary induction LrOne end be connected, auxiliary induction Lr's
The other end is connected with the drain electrode of switching tube S, and the source electrode of switching tube S is connected with the negative output terminal of single-phase diode rectifier bridge；Boosting
The other end of inductance Ls is also connected with the anode of fast recovery diode D1, the negative electrode of fast recovery diode D1 and former limit filter capacitor
CinOne end be connected, former limit filter capacitor CinThe other end be connected with the source electrode of switching tube S；The negative electrode of fast recovery diode D1
Also it is connected with the one end for isolating high frequency transformer T former limits, isolates the other end of high frequency transformer T former limits and the drain electrode of switching tube S
It is connected；The different name end of isolation high frequency transformer T secondary is connected with the anode of fast recovery diode D2, the moon of fast recovery diode D2
Pole is connected with the anode of output DC capacitor Co, is exported the negative terminal of DC capacitor Co and is isolated the of the same name of high frequency transformer T secondary
End is connected, and output loading Ro is connected in parallel on output DC capacitor Co two ends.
2. the cascade connection type current transformer based on single-stage power conversion module according to claim 1, it is characterised in that：Wherein institute
State single-stage power conversion module to replace using the 4th modular unit (D), the 4th modular unit (D) includes single-phase two pole
Pipe rectifier bridge, one by switching tube S1～S4The H bridges of composition, fast recovery diode D1, D2, D3, D4, boost inductance Ls, isolation are high
Frequency power transformer T and its former limit filter capacitor CinAnd output inductor Lm, output DC capacitor Co and output loading Ro；
The concrete annexation of the 4th modular unit (B)：AC-input voltage is exchanged end and is connected with single-phase diode rectifier bridge, single
The positive output end of diode phase rectifier bridge is connected with one end of boost inductance Ls, and the other end of boost inductance Ls recovers two poles with fast
The anode of pipe D1 is connected, the negative electrode of fast recovery diode D1 with by switching tube S1～S4Second bridge arm switching tube S of the H bridges of composition2
With S4Tie point be connected, and connected with tapped one end for isolating high frequency transformer T former limits；Boost inductance Ls's
The other end is also connected with the anode of fast recovery diode D4, the first bridge arm switching tube of the negative electrode of fast recovery diode D4 and H bridges
S1With S3Tie point be connected, and connected with the tapped other end for isolating high frequency transformer T former limits；The switch of H bridges
Pipe S1、S2Drain electrode and former limit filter capacitor CinOne end be connected, former limit filter capacitor CinThe other end and H bridges switching tube
S3、S4Source electrode be connected, and be connected with the negative output terminal of the first single-phase diode rectifier bridge；The two of isolation high frequency transformer T secondary
Individual output end is connected with the anode of fast recovery diode D2, D3 respectively, and the negative electrode of fast recovery diode D2, D3 is connected, and with defeated
Go out filter inductance LmOne end be connected, output inductor LmThe other end be connected with the anode of output DC capacitor Co, output is directly
The negative terminal of stream electric capacity Co is connected with the centre tap for isolating high frequency transformer T secondary, and output loading Ro is connected in parallel on output direct current
Hold Co two ends.
3. the cascade connection type current transformer based on single-stage power conversion module according to claim 1, it is characterised in that：Wherein institute
State single-stage power conversion module to replace using the 5th modular unit (E), the 5th modular unit (E) includes two single-phase two poles
Pipe rectifier bridge, one by switching tube S1～S4The H bridges of composition, fast recovery diode D1, boost inductance Ls, filter capacitor Cr, filtering
Inductance Lr, isolation high frequency transformer T and its former limit filter capacitor CinAnd output DC capacitor Co and output loading Ro；
The concrete annexation of the 5th modular unit (E)：AC-input voltage exchanges end phase with the first single-phase diode rectifier bridge
Even, the positive output end of the first single-phase diode rectifier bridge is connected with one end of boost inductance Ls, the other end of boost inductance Ls and
By switching tube S1～S4The first switch pipe S of the H bridges of composition1Drain electrode be connected, the other end of boost inductance Ls also recovers two with fast
The anode of pole pipe D1 is connected, the switching tube S of the negative electrode of fast recovery diode D1 and H bridges2Drain electrode be connected, fast recovery diode D1
Negative electrode also with former limit filter capacitor CinOne end be connected, former limit filter capacitor CinThe other end and H bridges switching tube S3、S4's
Source electrode is connected, and is connected with the negative output terminal of the first single-phase diode rectifier bridge；First bridge arm switching tube S of H bridges1With S3Company
Contact and filter capacitor CrOne end be connected, filter capacitor CrThe other end and filter inductance LrOne end be connected, filter inductance Lr
The other end be connected with the one end for isolating high frequency transformer T former limits, isolate high frequency transformer T former limits the other end and H bridges the
Two bridge arm switching tube S2With S4Tie point be connected；Two output ends of isolation high frequency transformer T secondary and the second single-phase diode
The ac input end of rectifier bridge is connected, and output DC capacitor Co and output loading Ro is connected in parallel on the second single-phase diode rectification respectively
Between bridge positive-negative output end.
4. the three-phase for being constituted using arbitrary described cascade connection type current transformer based on single-stage power conversion module in claim 1-3
Star connects converter topologies, connects the three-phase main power circuit of current transformer including constituting star, it is characterised in that：The main work(of the three-phase
Rate circuit includes the cascade connection type current transformer described in three high frequency filters and three based on single-stage power conversion module, wherein described
The remaining ac input end of the modular unit of N number of cascade totally six in cascade connection type current transformer based on single-stage power conversion module
Individual, N is positive integer, constitutes one group of terminals positioned at three ac input ends of every phase, and the other three exchange for being located at every phase is defeated
Enter end and constitute another group of terminals, one of which wiring terminated on a public neutral point, another group of terminals respectively with
The series connection of one of three high frequency filters accesses three phase network, constitutes Y-connection.
5. the three-phase for being constituted using arbitrary described cascade connection type current transformer based on single-stage power conversion module in claim 1-3
Corner connection converter topologies, including constituting the three-phase main power circuit of corner connection current transformer, it is characterised in that：The main work(of the three-phase
Rate circuit includes the cascade connection type current transformer described in three high frequency filters and three based on single-stage power conversion module, wherein described
The remaining ac input end of the modular unit of N number of cascade totally six in cascade connection type current transformer based on single-stage power conversion module
Individual, N is positive integer, constitutes one group of terminals positioned at three ac input ends of every phase, and the other three exchange for being located at every phase is defeated
Enter end and constitute another group of terminals, one of which wiring is terminated on a public neutral point, and another group of terminals connect successively
The next phase input being connected in three phase network, constitutes Angle connection.
6. the three-phase for being constituted using arbitrary described cascade connection type current transformer based on single-stage power conversion module in claim 1-3
Double star connects converter topologies, connects the three-phase main power circuit of current transformer, the three-phase main power circuit including constituting double star
Including three high frequency filters, six bridge arm inductance and DC capacitor, it is characterised in that：The three-phase main power circuit also includes
Cascade connection type current transformer described in six based on single-stage power conversion module, six tandem types based on single-stage power conversion module become
Stream device constitutes two groups of Y-connections of docking, i.e., in every group of Y-connection, the cascade based on single-stage power conversion module
The remaining ac input end of the modular unit of N number of cascade totally six in formula current transformer, N is positive integer, positioned at three of every phase
The ac input end constitutes one group of terminals, and ac input end described in being located at the other three of every phase constitutes another group of wiring
End, one group of wiring terminated on a public neutral point, another group of terminals respectively with the bridge arm inductance it
One one end is connected, and the other end of two bridge arm inductance being located on every phase bridge arm is mutually butted, and respectively through three
One of described high frequency filter is connected to three phase network input, meanwhile, the common neutral and second in first group of Y-connection
Common neutral in group Y-connection is connected with the two ends of the DC capacitor respectively, constitutes double star connection.
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| CN201310177834.5A CN103280984B (en) | 2013-01-15 | 2013-05-14 | Cascade connection type current transformer based on single-stage power conversion module |
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| CN201310014661.5 | 2013-01-15 | ||
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| CN 201310014661 CN103051219A (en) | 2013-01-15 | 2013-01-15 | Cascaded converter based on single-level power converting module |
| CN201310177834.5A CN103280984B (en) | 2013-01-15 | 2013-05-14 | Cascade connection type current transformer based on single-stage power conversion module |
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| CN201310177834.5A Expired - Fee Related CN103280984B (en) | 2013-01-15 | 2013-05-14 | Cascade connection type current transformer based on single-stage power conversion module |
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| CN107231097B (en) * | 2015-06-24 | 2020-09-29 | 南京中兴软件有限责任公司 | Power conversion device and method for installing the same |
| CN108011379A (en) * | 2018-01-25 | 2018-05-08 | 中国矿业大学(北京) | Advanced Static Var Compensator based on single stage shift module level parallel-type inverter |
| FI128052B (en) * | 2018-04-16 | 2019-08-30 | Lappeenrannan Teknillinen Yliopisto | A power converter for a bioelectrochemical system |
| CN109256966B (en) * | 2018-10-18 | 2021-02-02 | 矽力杰半导体技术(杭州)有限公司 | AC-DC power converter |
| CN109768715B (en) * | 2019-02-13 | 2024-03-19 | 襄阳九鼎昊天环保设备有限公司 | 220kV ultrahigh-voltage electrostatic dust collection power supply |
| CN109962496B (en) * | 2019-03-11 | 2020-09-11 | 浙江大学 | Offshore wind farm integrated topology design method based on high-voltage direct-current power transmission |
| CN110007214A (en) * | 2019-04-25 | 2019-07-12 | 中国电子科技集团公司第四十三研究所 | A kind of pulse width modulation amplifier ageing process energy recycling system |
| CN113014123B (en) * | 2021-04-02 | 2023-06-06 | 湖北春田电工技术有限公司 | High-power multi-output adjustable voltage-stabilizing direct-current power supply |
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| CN103280984A (en) | 2013-09-04 |
| CN103051219A (en) | 2013-04-17 |
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