[go: up one dir, main page]

CN202586797U - Five-level variable-current topological structure with bidirectional power switches and application thereof - Google Patents

Five-level variable-current topological structure with bidirectional power switches and application thereof Download PDF

Info

Publication number
CN202586797U
CN202586797U CN 201220229380 CN201220229380U CN202586797U CN 202586797 U CN202586797 U CN 202586797U CN 201220229380 CN201220229380 CN 201220229380 CN 201220229380 U CN201220229380 U CN 201220229380U CN 202586797 U CN202586797 U CN 202586797U
Authority
CN
China
Prior art keywords
capacitor
bidirectional power
power switch
switch
diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220229380
Other languages
Chinese (zh)
Inventor
李武华
罗皓泽
何湘宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN 201220229380 priority Critical patent/CN202586797U/en
Application granted granted Critical
Publication of CN202586797U publication Critical patent/CN202586797U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Power Conversion In General (AREA)

Abstract

本实用新型公开了一种具有双向功率开关的五电平变流拓扑结构，包括一电容链路和一变流单元；其中，电容链路由四个电容串联组成；变流单元由两个双向功率开关、两个二极管和四个带反并二极管的开关管组成；本实用新型还公开了采用该拓扑结构的三相五电平变流器。本实用新型利用双向功率开关对正负电流路径的单独控制，既能控制双向功率开关上的电流双向流动，又保证了电路多种电平的输出；在输出五种电平的基础上，大大减少了功率器件及直流电压源的数量，双向功率开关的电压应力仅为母线电压的1/4，拓扑结构对称，方便模块化生产。

Figure 201220229380

The utility model discloses a five-level inverter topological structure with a bidirectional power switch, which comprises a capacitor link and a converter unit; wherein, the capacitor link is composed of four capacitors in series; the converter unit is composed of two bidirectional The utility model is composed of a power switch, two diodes and four switch tubes with anti-parallel diodes; the utility model also discloses a three-phase five-level converter adopting the topological structure. The utility model utilizes the separate control of the positive and negative current paths by the bidirectional power switch, which can not only control the bidirectional flow of current on the bidirectional power switch, but also ensure the output of multiple levels of the circuit; on the basis of outputting five levels, greatly The number of power devices and DC voltage sources is reduced, the voltage stress of the bidirectional power switch is only 1/4 of the bus voltage, and the topological structure is symmetrical, which is convenient for modular production.

Figure 201220229380

Description

A kind of five level unsteady flow topological structure and application thereof with two-way power switch
Technical field
The utility model belongs to electric power Semiconductor Converting Technology field, is specifically related to a kind of five level unsteady flow topological structure and application thereof with two-way power switch.
Background technology
In recent years, shortage of energy sources and environmental pollution have become the focus of world attention, and the policy of " energy-saving and emission-reduction " of advocating energetically in country is advocated down, and the economize on electricity under the mesohigh large-power occasions subtracts can be very urgent especially.China's existing mesohigh high power AC motor is direct startup mostly; Take valve regulated or fluid power coupled modes to carry out speed governing, this mode of speed regulation makes waste of energy huge, along with the fast development of China's electric utility; The demand of industrial quarters centering high-power current transformer is increasing; When these high power motors adopted frequency control, fractional energy savings can reach 10% ~ 70%, on average about 30%.Since the high-voltage and high-power power electronic device cost an arm and a leg with and restraining factors in many ways such as key technology, adopting multilevel converter is the important directions that realizes the mesohigh high-power converter.Compare with traditional current transformer, many level current transformers can use withstand voltage lower device to realize higher voltage output; Harmonic wave of output voltage content is little, in the new forms of energy occasion of generating electricity by way of merging two or more grid systems, with the quality of power supply that improves output greatly; Drag in the field at motor, the increase of current transformer output level number can make output dv/dt reduce, and has reduced the infringement of electromagnetic interference and electrical machine insulation.
In five common level unsteady flow topological structures, conventional diode clamped five-level unsteady flow topology is as shown in Figure 1; 8 of the required full-control type power devices of its single brachium pontis, 12 of clamping diodes, 4 electric capacity of DC side series connection.And along with the increase of output level number, the quantity of clamping diode and active power device will increase greatly.The cost of this topological structure is high, and complex structural designs is unfavorable for actual industrial applications.
At the many level current transformers of a kind of very widely units in series H bridge of industrial applications; As shown in Figure 2; Its each H bridge power unit all needs independently voltage fed; Adopt 8 of the required full-control type power devices of three-phase five its single brachium pontis of level cascaded H bridge current transformer of this topological structure, two direct voltage sources independently, whole three-phase current transformer need independently direct voltage source of 24 of full-control type power devices and six.Along with the raising of output voltage grade, the H bridge power unit number of series connection is with independently the direct voltage source number is also more and more, and the needed like this phase shifting transformer secondary number of windings also need roll up.Brought the volume of phase shift isolating transformer to increase, manufacture difficulty increases, problems such as cost increase thereupon.
Summary of the invention
To the above-mentioned technological deficiency of existing in prior technology, the utility model provides a kind of five level unsteady flow topological structure and application thereof with two-way power switch, has significantly reduced the quantity of power device and direct voltage source.
A kind of five level unsteady flow topological structures with two-way power switch comprise a capacitance link and a current transforming unit;
Described capacitance link is made up of four electric capacity; Wherein, capacitor C 1An end link to each other capacitor C with the positive pole of outside direct voltage source 1The other end and capacitor C 2An end link to each other capacitor C 2The other end and capacitor C 3An end link to each other capacitor C 3The other end and capacitor C 4An end link to each other capacitor C 4The other end link to each other with the negative pole of outside direct voltage source;
Described current transforming unit is made up of two two-way power switch, two diodes and four band switching tubes anti-and diode; Wherein, the anti-also switching tube S of diode of band 1Input and capacitor C 1An end link to each other the switching tube S of the anti-and diode of band 1The switching tube S of output and diode anti-with band 2Input, two-way power switch Q 1An end and diode D 1Negative electrode link to each other two-way power switch Q 1The other end and capacitor C 2An end link to each other the switching tube S of the anti-and diode of band 2The switching tube S of output and diode anti-with band 3Input link to each other and be level output end, band is the switching tube S of diode also instead 3The switching tube S of output and diode anti-with band 4Input, two-way power switch Q 2An end and diode D 2Anode link to each other two-way power switch Q 2The other end and capacitor C 4An end link to each other the switching tube S of the anti-and diode of band 4Output and capacitor C 4The other end link to each other diode D 1Anode and diode D 2Negative electrode and capacitor C 3An end link to each other, the anti-and switching tube of diode of described band and the control end of two-way power switch all receive the switch controlling signal that external equipment provides.
A kind of three-phase five level current transformers with two-way power switch comprise a capacitance link and three current transforming units;
Described capacitance link is made up of four electric capacity; Wherein, capacitor C 1An end link to each other capacitor C with the positive pole of outside direct voltage source 1The other end and capacitor C 2An end link to each other capacitor C 2The other end and capacitor C 3An end link to each other capacitor C 3The other end and capacitor C 4An end link to each other capacitor C 4The other end link to each other with the negative pole of outside direct voltage source;
Described current transforming unit is made up of two two-way power switch, two diodes and four band switching tubes anti-and diode; Wherein, the anti-also switching tube S of diode of band 1Input and capacitor C 1An end link to each other the switching tube S of the anti-and diode of band 1The switching tube S of output and diode anti-with band 2Input, two-way power switch Q 1An end and diode D 1Negative electrode link to each other two-way power switch Q 1The other end and capacitor C 2An end link to each other the switching tube S of the anti-and diode of band 2The switching tube S of output and diode anti-with band 3Input link to each other and be the level output end of corresponding phase, band is the switching tube S of diode also instead 3The switching tube S of output and diode anti-with band 4Input, two-way power switch Q 2An end and diode D 2Anode link to each other two-way power switch Q 2The other end and capacitor C 4An end link to each other the switching tube S of the anti-and diode of band 4Output and capacitor C 4The other end link to each other diode D 1Anode and diode D 2Negative electrode and capacitor C 3An end link to each other, the anti-and switching tube of diode of described band and the control end of two-way power switch all receive the switch controlling signal that external equipment provides.
Preferably, described band switching tube anti-and diode adopts IGBT.Existing IGBT technology makes its current range reach as high as 1500A, and electric pressure can reach 6500V, especially satisfies the powerful application scenario of mesohigh.
Described two-way power switch is made up of two IGBT; Wherein, The current collection of the one IGBT is an end of two-way power switch very; The emitter of the one IGBT links to each other with the emitter of the 2nd IGBT, and the current collection of the 2nd IGBT is the other end of two-way power switch very, and the gate pole of the gate pole of an IGBT and the 2nd IGBT is two control ends of two-way power switch.
Described two-way power switch is made up of two switching tubes; Wherein, The input of first switching tube links to each other with the output of second switch pipe and is an end of two-way power switch; First output end of switching tube links to each other with the input of second switch pipe and is that the other end of two-way power switch, the control end of first control end of switching tube and second switch pipe are two control ends of two-way power switch.
The two-way power switch of these two kinds of structures can independently be controlled the flow path of reversal, and path meritorious and reactive current is provided during for circuit output expectation level.The latter can pass through modular implementation with respect to the former, and volume is littler, the device count that electric current is flowed through still less, loss is also more little.
The utility model utilizes two-way power switch to align the independent control of negative current path, can control the electric current two-way flow on the two-way power switch, has guaranteed the output of the multiple level of circuit again; On the basis of five kinds of level of output, significantly reduced the quantity of power device and direct voltage source.
Two-way power switch is connected in switching tube S 1/ S 3With switching tube S 2/ S 4Between, this syndeton can directly use T type three level modules to realize, and then reduces system bulk, improves power density, and the voltage stress of two-way power switch is merely 1/4 of busbar voltage, and the topological structure symmetry makes things convenient for modularization production.
Description of drawings
Fig. 1 is the sketch map of conventional diode clamped five-level topological structure.
Fig. 2 is the sketch map of five level cascaded H bridge unsteady flow topological structures.
Fig. 3 is the sketch map of a kind of unsteady flow topological structure of the utility model instance.
Fig. 4 is the sketch map of the another kind of unsteady flow topological structure of the utility model instance.
Fig. 5 is the structural representation of the utility model three-phase five level current transformers.
Fig. 6 is the output line voltage oscillogram that the utility model three-phase five level current transformers connect star-like load.
Embodiment
In order to describe the utility model more particularly, be elaborated below in conjunction with accompanying drawing and embodiment technical scheme to the utility model.
As shown in Figure 3, a kind of five level unsteady flow topological structures with two-way power switch comprise a capacitance link and a current transforming unit;
Capacitance link is by four capacitor C 1~ C 4Form; Wherein, capacitor C 1An end link to each other capacitor C with the positive pole of outside direct voltage source 1The other end and capacitor C 2An end link to each other capacitor C 2The other end and capacitor C 3An end link to each other capacitor C 3The other end and capacitor C 4An end link to each other capacitor C 4The other end link to each other with the negative pole of outside direct voltage source;
Current transforming unit is by two two-way power switch Q 1~ Q 2, two diode D 1~ D 2With four IGBT S 1~ S 4Form; Wherein, IGBT S 1Collector electrode and capacitor C 1An end link to each other IGBT S 1Emitter and IGBTS 2Collector electrode, two-way power switch Q 1An end and diode D 1Negative electrode link to each other two-way power switch Q 1The other end and capacitor C 2An end link to each other IGBT S 2Emitter and IGBT S 3Collector electrode link to each other and be level output end, IGBT S 3Emitter and IGBT S 4Collector electrode, two-way power switch Q 2An end and diode D 2Anode link to each other two-way power switch Q 2The other end and capacitor C 4An end link to each other IGBT S 4Emitter and capacitor C 4The other end link to each other diode D 1Anode and diode D 2Negative electrode and capacitor C 3An end link to each other, the gate pole of IGBT and the control end of two-way power switch all receive the switch controlling signal that external equipment provides.
In this execution mode, two-way power switch is made up of two IGBT; Wherein, an IGBT S 5/ S 7A current collection end of two-way power switch very, an IGBT S 5/ S 7Emitter and the 2nd IGBT S 6/ S 8Emitter link to each other the 2nd IGBT S 6/ S 8The current collection other end of two-way power switch very, an IGBTS 5/ S 7Gate pole and the 2nd IGBT S 6/ S 8Gate pole be two control ends of two-way power switch.
As another kind of execution mode, as shown in Figure 4, the two-way power switch in the unsteady flow topological structure is made up of two switching tubes; Wherein, the first switching tube S 5/ S 7Input and second switch pipe S 6/ S 8Output link to each other and be an end of two-way power switch, the first switching tube S 5/ S 7Output and second switch pipe S 6/ S 8Input link to each other and be the other end of two-way power switch, the first switching tube S 5/ S 7Control end and second switch pipe S 6/ S 8Control end be two control ends of two-way power switch.
Topological structure with Fig. 4 is an example, and the output composition principle of five kinds of level is following:
Work as S 1, S 2With the S in the two-way power switch 6And S 8Open-minded, promptly break off S 3, S 4, S 5, S 7The time, this moment V o=2E;
Work as S 2With the S in the two-way power switch 5, S 6, S 7Open-minded, promptly break off S 1, S 3, S 4, S 8The time, this moment V o=1E;
Work as S 2, S 3With the S in the two-way power switch 5, S 8Open-minded, promptly break off S 1, S 4, S 6, S 7The time, this moment V o=0E;
Work as S 3With the S in the two-way power switch 5, S 7, S 8Open-minded, promptly break off S 1, S 2, S 4, S 6The time, this moment V o=-1E;
Work as S 3, S 4With the S in the two-way power switch 5, S 7Open-minded, promptly break off S 1, S 2, S 6, S 8The time, this moment V o=-2E.
The five level unsteady flow topological structures of this execution mode both can directly constitute single-phase five level current transformers, can construct three-phase as shown in Figure 5 five level current transformers again; Three level output ends of three-phase five level current transformers of this execution mode topological structure are connected the star-like balanced load of three-phase respectively; Then its output line voltage waveform is as shown in Figure 6; The visible exportable line voltage with 9 kinds of level of current transformer from figure, output line voltage changes a level at every turn.

Claims (8)

1.一种具有双向功率开关的五电平变流拓扑结构，其特征在于：包括一电容链路和一变流单元；1. A five-level converter topology with a bidirectional power switch, characterized in that: it includes a capacitor link and a converter unit; 所述的电容链路由四个电容组成；其中，电容C1的一端与外部直流电压源的正极相连，电容C1的另一端与电容C2的一端相连，电容C2的另一端与电容C3的一端相连，电容C3的另一端与电容C4的一端相连，电容C4的另一端与外部直流电压源的负极相连；The capacitor chain is composed of four capacitors; wherein, one end of the capacitor C1 is connected to the positive pole of the external DC voltage source, the other end of the capacitor C1 is connected to one end of the capacitor C2 , and the other end of the capacitor C2 is connected to the capacitor C2. One end of C3 is connected, the other end of capacitor C3 is connected with one end of capacitor C4 , and the other end of capacitor C4 is connected with the negative pole of the external DC voltage source; 所述的变流单元由两个双向功率开关、两个二极管和四个带反并二极管的开关管组成；其中，带反并二极管的开关管S1的输入端与电容C1的一端相连，带反并二极管的开关管S1的输出端与带反并二极管的开关管S2的输入端、双向功率开关Q1的一端和二极管D1的阴极相连，双向功率开关Q1的另一端与电容C2的一端相连，带反并二极管的开关管S2的输出端与带反并二极管的开关管S3的输入端相连且为电平输出端，带反并二极管的开关管S3的输出端与带反并二极管的开关管S4的输入端、双向功率开关Q2的一端和二极管D2的阳极相连，双向功率开关Q2的另一端与电容C4的一端相连，带反并二极管的开关管S4的输出端与电容C4的另一端相连，二极管D1的阳极与二极管D2的阴极和电容C3的一端相连，所述的带反并二极管的开关管和双向功率开关的控制端均接收外部设备提供的开关控制信号。The conversion unit is composed of two bidirectional power switches, two diodes and four switching tubes with anti-parallel diodes; wherein, the input end of the switching tube S1 with anti-parallel diodes is connected to one end of the capacitor C1 , The output end of the switch tube S1 with anti-parallel diode is connected with the input end of the switch tube S2 with anti-parallel diode, one end of bidirectional power switch Q1 is connected with the cathode of diode D1 , and the other end of bidirectional power switch Q1 is connected with One end of the capacitor C2 is connected, the output terminal of the switch tube S2 with the anti-parallel diode is connected with the input terminal of the switch tube S3 with the anti-parallel diode and is a level output terminal, and the output terminal of the switch tube S3 with the anti-parallel diode The output end is connected to the input end of the switching tube S4 with an anti-parallel diode, one end of the bidirectional power switch Q2 is connected to the anode of the diode D2, and the other end of the bidirectional power switch Q2 is connected to one end of the capacitor C4 , with anti-parallel The output terminal of the switch tube S4 of the diode is connected with the other end of the capacitor C4 , the anode of the diode D1 is connected with the cathode of the diode D2 and one end of the capacitor C3 , the switch tube with the anti-parallel diode and the bidirectional power The control terminals of the switch all receive the switch control signal provided by the external device. 2.根据权利要求1所述的具有双向功率开关的五电平变流拓扑结构，其特征在于：所述的带反并二极管的开关管采用IGBT。2 . The five-level converter topology with bidirectional power switches according to claim 1 , wherein the switch tube with anti-parallel diodes is an IGBT. 3.根据权利要求1所述的具有双向功率开关的五电平变流拓扑结构，其特征在于：所述的双向功率开关由两个IGBT组成；其中，第一IGBT的集电极为双向功率开关的一端，第一IGBT的发射极与第二IGBT的发射极相连，第二IGBT的集电极为双向功率开关的另一端，第一IGBT的门极和第二IGBT的门极为双向功率开关的两个控制端。3. The five-level converter topology with bidirectional power switch according to claim 1, characterized in that: said bidirectional power switch is composed of two IGBTs; wherein, the collector of the first IGBT is a bidirectional power switch The emitter of the first IGBT is connected to the emitter of the second IGBT, the collector of the second IGBT is the other end of the bidirectional power switch, the gate of the first IGBT and the gate of the second IGBT are two ends of the bidirectional power switch a control terminal. 4.根据权利要求1所述的具有双向功率开关的五电平变流拓扑结构，其特征在于：所述的双向功率开关由两个开关管组成；其中，第一开关管的输入端与第二开关管的输出端相连且为双向功率开关的一端，第一开关管的输出端与第二开关管的输入端相连且为双向功率开关的另一端，第一开关管的控制端和第二开关管的控制端为双向功率开关的两个控制端。4. The five-level converter topology with a bidirectional power switch according to claim 1, wherein the bidirectional power switch is composed of two switching tubes; wherein, the input terminal of the first switching tube is connected to the second switching tube The output terminals of the two switching tubes are connected and are one end of the bidirectional power switch, the output terminal of the first switching tube is connected with the input terminal of the second switching tube and is the other end of the bidirectional power switch, the control terminal of the first switching tube and the second The control terminals of the switch tube are the two control terminals of the bidirectional power switch. 5.一种具有双向功率开关的三相五电平变流器，其特征在于：包括一电容链路和三个变流单元；5. A three-phase five-level converter with a bidirectional power switch, characterized in that it includes a capacitor link and three converter units; 所述的电容链路由四个电容组成；其中，电容C1的一端与外部直流电压源的正极相连，电容C1的另一端与电容C2的一端相连，电容C2的另一端与电容C3的一端相连，电容C3的另一端与电容C4的一端相连，电容C4的另一端与外部直流电压源的负极相连；The capacitor chain is composed of four capacitors; wherein, one end of the capacitor C1 is connected to the positive pole of the external DC voltage source, the other end of the capacitor C1 is connected to one end of the capacitor C2 , and the other end of the capacitor C2 is connected to the capacitor C2. One end of C3 is connected, the other end of capacitor C3 is connected with one end of capacitor C4 , and the other end of capacitor C4 is connected with the negative pole of the external DC voltage source; 所述的变流单元由两个双向功率开关、两个二极管和四个带反并二极管的开关管组成；其中，带反并二极管的开关管S1的输入端与电容C1的一端相连，带反并二极管的开关管S1的输出端与带反并二极管的开关管S2的输入端、双向功率开关Q1的一端和二极管D1的阴极相连，双向功率开关Q1的另一端与电容C2的一端相连，带反并二极管的开关管S2的输出端与带反并二极管的开关管S3的输入端相连且为对应相的电平输出端，带反并二极管的开关管S3的输出端与带反并二极管的开关管S4的输入端、双向功率开关Q2的一端和二极管D2的阳极相连，双向功率开关Q2的另一端与电容C4的一端相连，带反并二极管的开关管S4的输出端与电容C4的另一端相连，二极管D1的阳极与二极管D2的阴极和电容C3的一端相连，所述的带反并二极管的开关管和双向功率开关的控制端均接收外部设备提供的开关控制信号。The conversion unit is composed of two bidirectional power switches, two diodes and four switching tubes with anti-parallel diodes; wherein, the input end of the switching tube S1 with anti-parallel diodes is connected to one end of the capacitor C1 , The output end of the switch tube S1 with anti-parallel diode is connected with the input end of the switch tube S2 with anti-parallel diode, one end of bidirectional power switch Q1 is connected with the cathode of diode D1 , and the other end of bidirectional power switch Q1 is connected with One end of the capacitor C2 is connected, and the output terminal of the switch tube S2 with an anti-parallel diode is connected to the input end of the switch tube S3 with an anti-parallel diode and is the level output terminal of the corresponding phase. The switch tube with an anti-parallel diode The output terminal of S3 is connected with the input terminal of switch tube S4 with antiparallel diode, one terminal of bidirectional power switch Q2 is connected with the anode of diode D2 , the other terminal of bidirectional power switch Q2 is connected with one terminal of capacitor C4 , The output terminal of the switching tube S4 with an anti-parallel diode is connected to the other end of the capacitor C4 , the anode of the diode D1 is connected to the cathode of the diode D2 and one end of the capacitor C3 , and the switching tube with the anti-parallel diode Both the control terminals of the bidirectional power switch and the bidirectional power switch receive the switch control signal provided by the external device. 6.根据权利要求5所述的具有双向功率开关的三相五电平变流器，其特征在于：所述的带反并二极管的开关管采用IGBT。6 . The three-phase five-level converter with bidirectional power switches according to claim 5 , wherein the switch tube with anti-parallel diodes is an IGBT. 7.根据权利要求5所述的具有双向功率开关的三相五电平变流器，其特征在于：所述的双向功率开关由两个IGBT组成；其中，第一IGBT的集电极为双向功率开关的一端，第一IGBT的发射极与第二IGBT的发射极相连，第二IGBT的集电极为双向功率开关的另一端，第一IGBT的门极和第二IGBT的门极为双向功率开关的两个控制端。7. The three-phase five-level converter with bidirectional power switch according to claim 5, characterized in that: said bidirectional power switch is composed of two IGBTs; wherein, the collector of the first IGBT is a bidirectional power At one end of the switch, the emitter of the first IGBT is connected to the emitter of the second IGBT, the collector of the second IGBT is the other end of the bidirectional power switch, and the gate of the first IGBT and the gate of the second IGBT are bidirectional power switches. Two consoles. 8.根据权利要求5所述的具有双向功率开关的三相五电平变流器，其特征在于：所述的双向功率开关由两个开关管组成；其中，第一开关管的输入端与第二开关管的输出端相连且为双向功率开关的一端，第一开关管的输出端与第二开关管的输入端相连且为双向功率开关的另一端，第一开关管的控制端和第二开关管的控制端为双向功率开关的两个控制端。8. The three-phase five-level converter with a bidirectional power switch according to claim 5, wherein the bidirectional power switch is composed of two switching tubes; wherein, the input terminal of the first switching tube is connected to the The output terminal of the second switching tube is connected to one end of the bidirectional power switch, the output terminal of the first switching tube is connected to the input terminal of the second switching tube and is the other end of the bidirectional power switch, the control terminal of the first switching tube is connected to the second switching tube The control terminals of the two switch tubes are the two control terminals of the bidirectional power switch.
CN 201220229380 2012-05-18 2012-05-18 Five-level variable-current topological structure with bidirectional power switches and application thereof Expired - Fee Related CN202586797U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220229380 CN202586797U (en) 2012-05-18 2012-05-18 Five-level variable-current topological structure with bidirectional power switches and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220229380 CN202586797U (en) 2012-05-18 2012-05-18 Five-level variable-current topological structure with bidirectional power switches and application thereof

Publications (1)

Publication Number Publication Date
CN202586797U true CN202586797U (en) 2012-12-05

Family

ID=47256159

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220229380 Expired - Fee Related CN202586797U (en) 2012-05-18 2012-05-18 Five-level variable-current topological structure with bidirectional power switches and application thereof

Country Status (1)

Country Link
CN (1) CN202586797U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664546A (en) * 2012-05-18 2012-09-12 浙江大学 Five-level current transformation topological structure with bi-directional power switch and applications thereof
CN103051231A (en) * 2012-12-10 2013-04-17 阳光电源股份有限公司 Three-phase five-level inverter
CN103475249A (en) * 2013-09-11 2013-12-25 华为技术有限公司 Multi-level inverter
CN103856089A (en) * 2014-03-26 2014-06-11 南京理工大学 High-frequency isolation-type five-level inverter
CN104578880A (en) * 2015-01-16 2015-04-29 深圳市保益新能电气有限公司 DC-AC conversion circuit and control method thereof
EP4362313A1 (en) * 2022-10-27 2024-05-01 Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie Multilevel diode-clamped voltage inverter with a minimized number of transistors
EP4362312A1 (en) * 2022-10-27 2024-05-01 Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie Multilevel single-phase diode-clamped voltage inverter having a minimized number of transistors

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664546A (en) * 2012-05-18 2012-09-12 浙江大学 Five-level current transformation topological structure with bi-directional power switch and applications thereof
CN103051231A (en) * 2012-12-10 2013-04-17 阳光电源股份有限公司 Three-phase five-level inverter
CN103475249A (en) * 2013-09-11 2013-12-25 华为技术有限公司 Multi-level inverter
CN103475249B (en) * 2013-09-11 2016-08-17 华为技术有限公司 A kind of multi-electrical level inverter
CN103856089A (en) * 2014-03-26 2014-06-11 南京理工大学 High-frequency isolation-type five-level inverter
CN104578880A (en) * 2015-01-16 2015-04-29 深圳市保益新能电气有限公司 DC-AC conversion circuit and control method thereof
CN104578880B (en) * 2015-01-16 2017-02-22 深圳市保益新能电气有限公司 DC-AC conversion circuit and control method thereof
EP4362313A1 (en) * 2022-10-27 2024-05-01 Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie Multilevel diode-clamped voltage inverter with a minimized number of transistors
EP4362312A1 (en) * 2022-10-27 2024-05-01 Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie Multilevel single-phase diode-clamped voltage inverter having a minimized number of transistors

Similar Documents

Publication Publication Date Title
CN103441691B (en) A kind of mode of resonance electronic power convertor and converter device
CN107968572B (en) A DC solid-state transformer with fault ride-through capability and its control method
CN103516230B (en) Multi-level mutually balanced solid-state transformer with bidirectional power flow control and its realization method
CN102624258B (en) Non-isolated symmetric self-coupling 18-pulse rectification power supply system
CN101546964B (en) Modular Combination Multilevel Converter for Negative Sequence Current Compensation
CN202586797U (en) Five-level variable-current topological structure with bidirectional power switches and application thereof
CN106899030B (en) A primary-side integrated modular independent control battery energy storage system
CN102223099B (en) Cascaded three-phase bridge converter with adaptive three-phase balance control
CN101860228A (en) Power Electronic Transformers for High Voltage Distribution
CN102064712A (en) Power electronic transformer based on simple PFC (Power Factor Correction)
CN103066587B (en) A kind of Optimal Configuration Method of modular multi-level flexible direct current system
CN102664546A (en) Five-level current transformation topological structure with bi-directional power switch and applications thereof
CN101505106B (en) Cascade multi-level converter
CN104638940A (en) Modular multi-level power electronic transformer based on cascading
CN104753353A (en) Two-way transmission converter applicable to high voltage and high power
CN102005957A (en) Single-power supply cascade multi-level converter
CN107134926A (en) A Modular Power Router Combined Circuit
CN102055348A (en) Voltage reducing power electronic transformer for distribution network
CN107070249A (en) A kind of electric power electric transformer applied to alternating current-direct current power distribution network
CN110311381A (en) A power electronic transformer for AC-DC hybrid grid that can ride through DC faults
CN103715930A (en) Method for increasing capacity of flexible direct-current power transmission system and apparatus thereof
CN104601003A (en) Power electronic transformer based on modular multilevel converter
CN102437575B (en) Medium-and-high-voltage unified power quality controller (UPQC) without transformer
CN205051584U (en) Three -phase - single -phase potential device of no frequency transformer
CN207460027U (en) Isolated bidirectional DC/AC power supply

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121205

Termination date: 20130518