CN111200368A - Cascaded 24-pulse-wave converter topology - Google Patents
Cascaded 24-pulse-wave converter topology Download PDFInfo
- Publication number
- CN111200368A CN111200368A CN201811372884.8A CN201811372884A CN111200368A CN 111200368 A CN111200368 A CN 111200368A CN 201811372884 A CN201811372884 A CN 201811372884A CN 111200368 A CN111200368 A CN 111200368A
- Authority
- CN
- China
- Prior art keywords
- converter
- transformer
- phase
- negative
- positive
- 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.)
- Pending
Links
- 208000026817 47,XYY syndrome Diseases 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/1552—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a biphase or polyphase arrangement
-
- 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
- H02M1/12—Arrangements for reducing harmonics from ac 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
- H02M7/162—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
- H02M7/1623—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit
- H02M7/1626—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit with automatic control of the output voltage or current
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
Abstract
The invention relates to the technical field of power electronics, in particular to a cascade 24-pulse current transformer topology which comprises a double-Y pulse generator, a phase-shifting transformer bank, a four-quadrant 24-pulse current transformer bank and a resistance-inductance load, wherein the double-Y pulse generator is connected to one end of the phase-shifting transformer bank, the other end of the phase-shifting transformer bank is connected with one end of the four-quadrant 24-pulse current transformer bank, and the other end of the four-quadrant 24-pulse current transformer bank is connected with the resistance-inductance load. The device can effectively inhibit the circulation, save an external circulation reactor, save the cost and reduce the volume, and only affects the current transformer connected in parallel with the fault current transformer when the fault circulation of the current transformer is out of control, but has no effect on other current transformers, thereby protecting other current transformers to the maximum extent; four-quadrant operation can be realized; the connection mode of the transformer and the converter enables the load of the network side and the transformer to be balanced, the load of the transformer is small, and circulating current cannot flow through two secondary sides of the same transformer simultaneously.
Description
Technical Field
The invention relates to the technical field of power electronics, in particular to a cascade 24-pulse current transformer topology.
Background
HL-2M is a magnetic confinement nuclear fusion Tokamak device in China, in the Tokamak device, plasma control is very important work, and each plasma discharge and deep physical experiment need to be established on the plasma control. The plasma is a fourth state different from solid, liquid and gas, when a physical experiment is carried out, the plasma can move upwards or downwards quickly along the vertical direction, in order to prevent the plasma from disappearing due to wall collision, active feedback is needed to control the plasma, a magnetic field is generated in the horizontal direction to control the vertical displacement of the plasma, the plasma can be stabilized in the horizontal direction, and the physical experiment is ensured to be carried out smoothly.
The topology of the cascade four-quadrant 24-pulse current transformer provided by the invention has the main tasks of solving the vertical instability control of the plasma, quickly responding the power supply under the condition that the current of the coil needs to be changed in positive and negative, and outputting the needed current in time.
In the prior art, a 12-pulse current transformer, a 24-pulse current transformer and an H-bridge cascade can be used as a fast-control power supply topology, but the 12-pulse current transformer has the following defects: the output frequency is low, the harmonic content is high, and the actual capacity of the transformer is overlarge, so that the size of the transformer is huge. The conventional 24-pulse current transformer has the disadvantages that: the conventional 24-pulse current transformer is mostly a parallel 24-pulse current transformer, the output voltage is not high enough, the single voltage source supplies power, and the four current transformers are connected in parallel, so that the circulating current value is large, and a large-capacity circulating current reactor is required to be added for restraining the circulating current, so that the cost is high, and the size is large. The disadvantages of the H-bridge cascade are: the structure needs a plurality of H-bridge modules to be connected in series and in parallel, the topology is relatively complex, the cost is high, the output level is more, the ripple is large, and the control is relatively complex.
Disclosure of Invention
The invention aims to provide a cascade 24-pulse converter topology aiming at the defects in the prior art, which can effectively improve the output frequency which is twice that of a 12-pulse converter, reduce the harmonic content, realize stepless voltage regulation, reduce voltage pulsation, smoother output voltage, adjustable power factor and smaller ripple, and simultaneously, the four-quadrant 24-pulse converter can meet the requirement that the Total Harmonic Distortion (THD) △ THD required in the IEEE Standard 5191992 Standard is less than 5%.
The technical scheme of the invention is as follows:
a cascade 24-pulse current transformer topology comprises a double-Y pulse generator 1, a phase-shifting transformer bank, a four-quadrant 24-pulse current transformer bank and a resistance-inductance load 14, wherein the double-Y pulse generator 1 is connected to one end of the phase-shifting transformer bank, the other end of the phase-shifting transformer bank is connected with one end of the four-quadrant 24-pulse current transformer bank, and the other end of the four-quadrant 24-pulse current transformer bank is connected with the resistance-inductance load 14;
the phase-shifting transformer bank comprises a three-phase double-winding transformer A2, a three-phase double-winding transformer B3, a three-phase double-winding transformer C4 and a three-phase double-winding transformer D5;
the four-quadrant 24-pulse current transformer group comprises two current transformer groups, wherein the positive group comprises a positive group current transformer A6, a positive group current transformer B8, a positive group current transformer C10 and a positive group current transformer D12, and the negative group comprises a negative group current transformer A7, a negative group current transformer B9, a negative group current transformer C11 and a negative group current transformer D13.
The primary side of the three-phase double-winding transformer 2 shifts phase by +7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode; the primary side of the three-phase double-winding transformer 3 is shifted by-7.5 degrees, and the secondary side is respectively connected by an angular connection method and a star connection method; the primary side of the three-phase double-winding transformer 4 is shifted by +7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode; the primary side of the three-phase double-winding transformer 5 shifts the phase by-7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode.
The incoming line voltages of the three-phase double-winding transformer A2 and the three-phase double-winding transformer C4 are different by 30 degrees, and the incoming line voltages of the three-phase double-winding transformer B3 and the three-phase double-winding transformer D5 are different by 30 degrees; the incoming voltages of the three-phase double-winding transformer a2 and the three-phase double-winding transformer D5 are in the same phase, and the incoming voltages of the three-phase double-winding transformer B3 and the three-phase double-winding transformer C4 are in the same phase.
The triangular secondary side of the three-phase double-winding transformer A2 is connected with a positive group converter A6, and the star-shaped secondary side is connected with a negative group converter B9; the triangular secondary side of the three-phase double-winding transformer B3 is connected with a negative group converter C11, and the star-shaped secondary side is connected with a positive group converter D12; the triangular secondary side of the three-phase double-winding transformer C4 is connected with a positive group converter B8, and the star-shaped secondary side is connected with a negative group converter A7; the triangular secondary side of the three-phase double-winding transformer D5 is connected with the negative group converter D13, and the star-shaped secondary side is connected with the positive group converter C10.
The positive group converter A6 is connected with the negative group converter A7 in an inverse parallel mode; the positive group converter B8 is connected with the negative group converter B9 in an inverse parallel mode; the positive group converter C10 is connected with the negative group converter C11 in an inverse parallel mode; the positive bank converter D12 is connected in anti-parallel with the negative bank converter D13.
The positive group converter A6, the positive group converter B8, the positive group converter C10 and the positive group converter D12 are connected in series, and the negative group converter A7, the negative group converter B9, the negative group converter C11 and the negative group converter D13 are connected in series;
the positive output of the positive bank current transformer a6 is connected to the positive input of the resistive-inductive load 14 and the negative output of the positive bank current transformer D12 is connected to the negative input of the resistive-inductive load 14.
The three-phase double-winding transformer is a step-down transformer, the transformation ratio is 3000/476, and high voltage output by the generator is subjected to step-down processing and sent into the converter.
The converter is a three-phase full-bridge rectification structure, and the device adopts a thyristor.
The invention has the beneficial effects that:
two groups of Y generators staggered by 30 degrees are adopted for supplying power, and due to the large impedance of the generators, the circulating current can be effectively inhibited, an additional circulating current reactor is omitted, the cost is saved, and the volume is reduced.
Because the positive group converter and the negative group converter are connected in parallel and then connected in series, once the fault circulation of the converter is out of control, only the converter connected in parallel with the fault converter is influenced, and the other converters are not influenced, so that other converters are protected to the maximum extent.
Because the positive group converter set and the negative group converter set are adopted to work jointly, the four-quadrant operation can be realized.
The connection mode of the transformer and the converter enables the load of the network side and the transformer to be balanced, the load of the transformer is small, and circulating current cannot flow through two secondary sides of the same transformer simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a topology of a cascaded four-quadrant 24-pulse current transformer according to the present invention;
fig. 2 is a waveform of the output current and the given current shown in fig. 2.
In fig. 1, 1 is a double-Y pulse generator, 2 is a three-phase double-winding transformer a, 3 is a three-phase double-winding transformer B, 4 is a three-phase double-winding transformer C, 5 is a three-phase double-winding transformer D, 6 is a positive group current transformer a, 8 is a positive group current transformer B, 10 is a positive group current transformer C, 12 is a positive group current transformer D,7 is a negative group current transformer a, 9 is a negative group current transformer B, 11 is a negative group current transformer C, 13 is a negative group current transformer D, 14 is a resistance-inductance load.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
A24-pulse cascade converter topology comprises a double-Y pulse generator 1, a phase-shifting transformer bank, a four-quadrant 24-pulse converter bank and a resistance-inductance load 14, wherein the double-Y pulse generator 1 is connected to one end of the phase-shifting transformer bank, the other end of the phase-shifting transformer bank is connected with one end of the four-quadrant 24-pulse converter bank, and the other end of the four-quadrant 24-pulse converter bank is connected with the resistance-inductance load 14.
The phase-shifting transformer group comprises a three-phase double-winding transformer A2, a three-phase double-winding transformer B3, a three-phase double-winding transformer C4 and a three-phase double-winding transformer D5, wherein the three-phase double-winding transformers are step-down transformers, the transformation ratio is 3000/476, and high voltage output by a generator is subjected to step-down processing and is sent into a converter.
The primary side of the three-phase double-winding transformer 2 shifts phase by +7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode; the primary side of the three-phase double-winding transformer 3 is shifted by-7.5 degrees, and the secondary side is respectively connected by an angular connection method and a star connection method; the primary side of the three-phase double-winding transformer 4 is shifted by +7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode; the primary side of the three-phase double-winding transformer 5 shifts the phase by-7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode.
The incoming line voltages of the three-phase double-winding transformer A2 and the three-phase double-winding transformer C4 are different by 30 degrees, and the incoming line voltages of the three-phase double-winding transformer B3 and the three-phase double-winding transformer D5 are different by 30 degrees; the incoming voltages of the three-phase double-winding transformer a2 and the three-phase double-winding transformer D5 are in the same phase, and the incoming voltages of the three-phase double-winding transformer B3 and the three-phase double-winding transformer C4 are in the same phase.
The four-quadrant 24-pulse current transformer group comprises two current transformer groups, wherein the positive group comprises a positive group current transformer A6, a positive group current transformer B8, a positive group current transformer C10 and a positive group current transformer D12, and the negative group comprises a negative group current transformer A7, a negative group current transformer B9, a negative group current transformer C11 and a negative group current transformer D13;
the converter is a three-phase full-bridge rectification structure, and the devices adopt thyristors.
The triangular secondary side of the three-phase double-winding transformer A2 is connected with a positive group converter A6, and the star-shaped secondary side is connected with a negative group converter B9; the triangular secondary side of the three-phase double-winding transformer B3 is connected with a negative group converter C11, and the star-shaped secondary side is connected with a positive group converter D12; the triangular secondary side of the three-phase double-winding transformer C4 is connected with a positive group converter B8, and the star-shaped secondary side is connected with a negative group converter A7; the triangular secondary side of the three-phase double-winding transformer D5 is connected with the negative group converter D13, and the star-shaped secondary side is connected with the positive group converter C10.
The positive group converter A6 is connected with the negative group converter A7 in an inverse parallel mode; the positive group converter B8 is connected with the negative group converter B9 in an inverse parallel mode; the positive group converter C10 is connected with the negative group converter C11 in an inverse parallel mode; the positive bank converter D12 is connected in anti-parallel with the negative bank converter D13.
The positive group converter A6, the positive group converter B8, the positive group converter C10 and the positive group converter D12 are connected in series, and the negative group converter A7, the negative group converter B9, the negative group converter C11 and the negative group converter D13 are connected in series.
The positive output of the positive bank current transformer a6 is connected to the positive input of the resistive-inductive load 14 and the negative output of the positive bank current transformer D12 is connected to the negative input of the resistive-inductive load 14.
The working mode is that only the positive group converter A6, the positive group converter B8, the positive group converter C10 and the positive group converter D12 are put into operation when the current is positive; when the current is negative, only the negative group converter A7, the negative group converter B9, the negative group converter C11 and the negative group converter D13 are put into operation; when the current is about to pass through zero, the positive group converter A6, the positive group converter 8B, the positive group converter C10 and the positive group converter D12 and the negative group converter A7, the negative group converter B9, the negative group converter C11 and the negative group converter D13 are simultaneously put into operation, and the four-quadrant operation can be realized by adopting a logic loop current operation mode.
When the positive group converter A6, the positive group converter B8, the positive group converter C10, the positive group converter D12 or the negative group converter A7, the negative group converter B9, the negative group converter C11 and the negative group converter D13 work independently, the four transformers all work, so that the load of the grid side and the load of the transformers are balanced, and the load of each transformer is small.
When the positive converter A6, the positive converter B8, the positive converter C10, the positive converter D12, the negative converter A7, the negative converter B9, the negative converter C11 and the negative converter D13 work at the same time, namely when circulating current exists, the circulating current cannot flow through two secondary sides of the same transformer at the same time, the circulating current only flows through the two converters at the same time, and the circulating current cannot flow through the same Y of the generator.
The three-phase double-winding transformer A2, the three-phase double-winding transformer B3, the three-phase double-winding transformer C4 and the three-phase double-winding transformer D5 have only two types, namely primary side phase shifting +/-7.5 degrees, and the cost is reduced.
When the current waveform needs to be changed according to the given current, a negative feedback module is added in the circuit, the output current has good follow-up performance, the response speed is hundreds of amperes per millisecond, and as shown in fig. 2, the output current almost completely coincides with the given current and has good follow-up performance. And meanwhile, smooth zero crossing of the current can be realized.
Claims (9)
1. A cascade 24-pulse current transformer topology comprises a double-Y pulse generator (1), a phase-shifting transformer bank, a four-quadrant 24-pulse current transformer bank and a resistance-inductance load (14), wherein the double-Y pulse generator (1) is connected to one end of the phase-shifting transformer bank, the other end of the phase-shifting transformer bank is connected with one end of the four-quadrant 24-pulse current transformer bank, and the other end of the four-quadrant 24-pulse current transformer bank is connected with the resistance-inductance load (14);
the method is characterized in that:
the phase-shifting transformer group comprises a three-phase double-winding transformer A (2), a three-phase double-winding transformer B (3), a three-phase double-winding transformer C (4) and a three-phase double-winding transformer D (5);
the four-quadrant 24-pulse current transformer group comprises two current transformer groups, wherein the positive group comprises a positive group current transformer A (6), a positive group current transformer B (8), a positive group current transformer C (10) and a positive group current transformer D (12), and the negative group comprises a negative group current transformer A (7), a negative group current transformer B (9), a negative group current transformer C (11) and a negative group current transformer D (13).
2. A cascaded 24-pulse current converter topology as recited in claim 1, wherein: the primary side of the three-phase double-winding transformer (2) shifts the phase by +7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode; the primary side of the three-phase double-winding transformer (3) shifts the phase by-7.5 degrees, and the secondary side is respectively connected in an angle connection way and a star connection way; the primary side of the three-phase double-winding transformer (4) shifts the phase by +7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode; the primary side of the three-phase double-winding transformer (5) shifts the phase by-7.5 degrees, and the secondary side is respectively connected in an angle connection mode and a star connection mode.
3. A cascaded 24-pulse current converter topology as recited in claim 1, wherein: the incoming line voltages of the three-phase double-winding transformer A (2) and the three-phase double-winding transformer C (4) are different by 30 degrees, and the incoming line voltages of the three-phase double-winding transformer B (3) and the three-phase double-winding transformer D (5) are different by 30 degrees; the incoming line voltages of the three-phase double-winding transformer A (2) and the three-phase double-winding transformer D (5) are in the same phase, and the incoming line voltages of the three-phase double-winding transformer B (3) and the three-phase double-winding transformer C (4) are in the same phase.
4. A cascaded 24-pulse current converter topology as recited in claim 1, wherein: the triangular secondary side of the three-phase double-winding transformer A (2) is connected with a positive group converter A (6), and the star-shaped secondary side is connected with a negative group converter B (9); the triangular secondary side of the three-phase double-winding transformer B (3) is connected with a negative group converter C (11), and the star-shaped secondary side is connected with a positive group converter D (12); the triangular secondary side of the three-phase double-winding transformer C (4) is connected with a positive group converter B (8), and the star-shaped secondary side is connected with a negative group converter A (7); the triangular secondary side of the three-phase double-winding transformer D (5) is connected with the negative group converter D (13), and the star-shaped secondary side is connected with the positive group converter C (10).
5. A cascaded 24-pulse current converter topology as recited in claim 1, wherein: the positive group converter A (6) and the negative group converter A (7) are reversely connected in parallel; the positive group converter B (8) and the negative group converter B (9) are reversely connected in parallel; the positive group converter C (10) and the negative group converter C (11) are reversely connected in parallel; the positive group converter D (12) and the negative group converter D (13) are connected in parallel in an opposite direction.
6. A cascaded 24-pulse current converter topology as recited in claim 1, wherein: the converter comprises a positive group converter A (6), a positive group converter B (8), a positive group converter C (10) and a positive group converter D (12) which are connected in series, and a negative group converter A (7), a negative group converter B (9), a negative group converter C (11) and a negative group converter D (13) which are connected in series;
the positive output of the positive group converter A (6) is connected with the positive input of the inductance-resistance load (14), and the negative output of the positive group converter D (12) is connected with the negative input of the inductance-resistance load (14).
7. A cascaded 24-pulse current converter topology according to any one of claims 1-6, characterized in that: the three-phase double-winding transformer is a step-down transformer, the transformation ratio is 3000/476, and high voltage output by the generator is subjected to step-down processing and sent into the converter.
8. A cascaded 24-pulse current converter topology according to any one of claims 1-6, characterized in that: the converter is a three-phase full-bridge rectification structure, and the device adopts a thyristor.
9. A cascaded 24-pulse current converter topology according to any one of claims 1-6, characterized in that: a negative feedback module is added in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372884.8A CN111200368A (en) | 2018-11-19 | 2018-11-19 | Cascaded 24-pulse-wave converter topology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372884.8A CN111200368A (en) | 2018-11-19 | 2018-11-19 | Cascaded 24-pulse-wave converter topology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111200368A true CN111200368A (en) | 2020-05-26 |
Family
ID=70745539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811372884.8A Pending CN111200368A (en) | 2018-11-19 | 2018-11-19 | Cascaded 24-pulse-wave converter topology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111200368A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208230B1 (en) * | 1998-10-28 | 2001-03-27 | Kabushiki Kaisha Toshiba | Transformer for cycloconverter |
| RU39763U1 (en) * | 2004-04-06 | 2004-08-10 | Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" | THREE-PHASE ASYNCHRONOUS MOTOR |
| CN102648506A (en) * | 2009-08-10 | 2012-08-22 | 西门子公司 | Method for functionally checking a vacuum switch of a traction inverter |
| WO2012122874A1 (en) * | 2011-03-15 | 2012-09-20 | 荣信电力电子股份有限公司 | H-bridge cascaded multi-level voltage sag generator based on igbt |
| US20170085169A1 (en) * | 2015-09-18 | 2017-03-23 | Switching Power, Inc. | Magnetic capacitive current limit circuit for transformers |
| CN209105050U (en) * | 2018-11-19 | 2019-07-12 | 核工业西南物理研究院 | A kind of 24 pulse wave converter topologies of cascade |
-
2018
- 2018-11-19 CN CN201811372884.8A patent/CN111200368A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208230B1 (en) * | 1998-10-28 | 2001-03-27 | Kabushiki Kaisha Toshiba | Transformer for cycloconverter |
| RU39763U1 (en) * | 2004-04-06 | 2004-08-10 | Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт электровозостроения" | THREE-PHASE ASYNCHRONOUS MOTOR |
| CN102648506A (en) * | 2009-08-10 | 2012-08-22 | 西门子公司 | Method for functionally checking a vacuum switch of a traction inverter |
| WO2012122874A1 (en) * | 2011-03-15 | 2012-09-20 | 荣信电力电子股份有限公司 | H-bridge cascaded multi-level voltage sag generator based on igbt |
| US20170085169A1 (en) * | 2015-09-18 | 2017-03-23 | Switching Power, Inc. | Magnetic capacitive current limit circuit for transformers |
| CN209105050U (en) * | 2018-11-19 | 2019-07-12 | 核工业西南物理研究院 | A kind of 24 pulse wave converter topologies of cascade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8259480B2 (en) | Arrangement for exchanging power | |
| JP5721096B2 (en) | Power converter | |
| WO2017152720A1 (en) | Method and apparatus for controlling hybrid direct-current transmission system | |
| CN103973121B (en) | single-phase power electronic transformer | |
| CN109950890B (en) | Fully-controlled energy consumption device | |
| EP2887524B1 (en) | Power converter | |
| TW201310876A (en) | A power compensation apparatus and method for a renewable energy system | |
| Li et al. | Control and analysis of the modular multilevel DC de-icer with STATCOM functionality | |
| JP2013115837A (en) | Power conversion apparatus | |
| WO2024016749A1 (en) | Flexible dc-to-dc converter capable of multi-port dc power flow control and control method thereof | |
| Cheng et al. | A comprehensive AC fault ride-through strategy for HVDC link with serial-connected LCC-VSC hybrid inverter | |
| Kawamura et al. | Control and experiment of a 380-V, 15-kW motor drive using modular multilevel cascade converter based on triple-star bridge cells (MMCC-TSBC) | |
| Xu | A new multilevel AC/DC topology based H-bridge alternate arm converter | |
| Zhao et al. | An improved control strategy for current source converter-based HVDC using fundamental frequency modulation | |
| JP6771707B1 (en) | Power converter | |
| Eltamaly | A novel harmonic reduction technique for controlled converter by third harmonic current injection | |
| Salzmann et al. | High-power drive system with advanced power circuitry and improved digital control | |
| Chang et al. | Analysis and design of a MMC based wind power converter for offshore DC grids | |
| CN108539779A (en) | Total power variable-ratio pumped storage based on MMC | |
| CN111200368A (en) | Cascaded 24-pulse-wave converter topology | |
| CN108282098B (en) | Novel cascaded frequency converter power decoupling control method | |
| CN203827195U (en) | Single phase power electronic transformer | |
| CN111082465A (en) | Direct current power flow controller, control method and direct current power transmission system | |
| JP2017143626A (en) | Power conversion device | |
| CN113452276B (en) | CCC-PHC type hybrid cascade direct current converter, rectifying station, inverter station and power transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |