CN105811749A - Converter valve submodule and modular multi-level converter - Google Patents
Converter valve submodule and modular multi-level converter Download PDFInfo
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- CN105811749A CN105811749A CN201610251574.5A CN201610251574A CN105811749A CN 105811749 A CN105811749 A CN 105811749A CN 201610251574 A CN201610251574 A CN 201610251574A CN 105811749 A CN105811749 A CN 105811749A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a converter valve submodule and a modular multi-level converter. The converter valve submodule comprises a positive terminal, a negative terminal, a first switch module, a second switch module, a capacitor, a third switch module, a discharge protection resistor and a secondary control protection module, wherein each of the first switch module, the second switch module and the third switch module comprises a first end, a second end and a control end; the first end of the first switch module is connected to the first end of the second switch module and the public end is connected to the positive terminal; the second end of the first switch module is connected to the anode of the capacitor; the second end of the second switch module is connected to the cathode of the capacitor and the public end is connected to the negative terminal; the first end of the third switch module is connected to the anode of the capacitor; the second end of the third switch module is connected to one end of the discharge protection resistor; the control ends of the first, second and third switch modules are connected to the secondary control protection module; and the other end of the discharge protection resistor is connected to the cathode of the capacitor. The secondary control protection module controls conduction of the third switch module, and the capacitor discharges through the discharge protection resistor, so that overvoltage is prevented.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly relate to a kind of converter valve submodule and modularization multi-level converter.
Background technology
Inverter is usually used in flexible DC power transmission, can be made up of multiple converter valve submodules.Converter valve submodule can be divided into bridge-type and semi-bridge type, is used mostly semi-bridge type converter valve submodule in flexible DC power transmission network.
Converter valve submodule generally includes converter bridge and electric capacity, but, when there is electric capacity overvoltage in existing semi-bridge type converter valve submodule, it is impossible to quickly bleeds off its capacitance voltage, thus being easily caused converter valve submodule, because capacitance voltage is too high, generating device damages fault, affects properly functioning.
Summary of the invention
Based on this, it is necessary to for the problems referred to above, it is provided that a kind of converter valve submodule and modularization multi-level converter being possible to prevent electric capacity overvoltage and damage device.
A kind of converter valve submodule; protecting module including anode, negative terminal, the first switch module, second switch module, electric capacity, the 3rd switch module, discharge prevention resistance and linear quadratic control, described first switch module, described second switch module and described 3rd switch module include the first end, the second end respectively and control end；
First end of described first switch module connects the first end of described second switch module, and common port connects described anode, second end of described first switch module connects the positive pole of described electric capacity, the control end of described first switch module connects described linear quadratic control protection module, second end of described second switch module connects the negative pole of described electric capacity, and common port connects described negative terminal, the control end of described second switch module connects described linear quadratic control protection module, first end of described 3rd switch module connects the positive pole of described electric capacity, second end of described 3rd switch module connects one end of described discharge prevention resistance, the control end of described 3rd switch module connects described linear quadratic control protection module, the described discharge prevention resistance other end connects the negative pole of described electric capacity；
Described anode and negative terminal are respectively connected to and output voltage, and described linear quadratic control protection module controls described 3rd switch module conducting, makes described electric capacity to described discharge prevention conductive discharge.
A kind of modularization multi-level converter, including the above-mentioned converter valve submodule of at least two successively cascade.
Above-mentioned converter valve submodule; by being attempted by electric capacity two ends after the 3rd switch module and discharge prevention resistant series, linear quadratic control protection module controls the 3rd switch module conducting, and electric capacity can pass through discharge prevention conductive discharge; thus preventing electric voltage over press, improve the safety in utilization of converter valve submodule.
Above-mentioned modularization multi-level converter, owing to comprising above-mentioned converter valve submodule, is in like manner possible to prevent electric capacity overvoltage, improves the safety in utilization of converter valve submodule.
Accompanying drawing explanation
Fig. 1 is the structure chart of converter valve submodule of the present invention in an embodiment；
Fig. 2 is the electrical schematic diagram of converter valve submodule of the present invention in an embodiment；
Fig. 3 is the schematic diagram of forward current charged state in a specific embodiment；
Fig. 4 is the schematic diagram of negative current discharge condition in a specific embodiment；
Fig. 5 is the schematic diagram of forward current bypass condition in a specific embodiment；
Fig. 6 is the schematic diagram of negative current bypass condition in a specific embodiment；
Fig. 7 is the operating diagram of electric capacity overvoltage electric discharge in a specific embodiment；
Fig. 8 is the schematic diagram of failure bypass state in a specific embodiment；
Fig. 9 is the structure chart of modularization multi-level converter of the present invention in an embodiment；
Figure 10 is the electrical schematic diagram of modularization multi-level converter of the present invention in an embodiment.
Detailed description of the invention
With reference to Fig. 1; a kind of converter valve submodule of the present invention in one embodiment; protecting module 170 including anode, negative terminal, the first switch module 110, second switch module the 130, the 3rd switch module 150, electric capacity C, discharge prevention resistance R2 and linear quadratic control, the first switch module 110, second switch module 130 and the 3rd switch module 150 include the first end, the second end respectively and control end.
First end of the first switch module 110 connects the first end of second switch module 130, and common port connects anode, and the second end of the first switch module 110 connects the positive pole of electric capacity C, and the control end connecting secondary of the first switch module 110 controls protection module 170.Second end of second switch module 130 connects the negative pole of electric capacity C, and common port connects negative terminal, and the control end connecting secondary of second switch module 130 controls protection module 170.First end of the 3rd switch module 150 connects the positive pole of electric capacity C; second end of the 3rd switch module 150 connects one end of discharge prevention resistance R2; the control end connecting secondary of the 3rd switch module 150 controls protection module 170, and the discharge prevention resistance R2 other end connects the negative pole of electric capacity C.
Anode and negative terminal are respectively connected to and output voltage.Linear quadratic control protection module 170 controls the 3rd switch module 150 and turns on, and makes electric capacity C discharge to discharge prevention resistance R2, thus preventing electric capacity C overvoltage and causing device failure.Specifically, linear quadratic control protection module 170 output triggers signal to the 3rd switch module 150, controls the 3rd switch module 150 and turns on.
The operation principle of converter valve submodule is: linear quadratic control protection module 170 output triggers signal to the first switch module 110, output block signal is to second switch module 130, control the first switch module 110 positive/negative to conducting, second switch module 130 negative sense turns on, the electric current of anode input gives electric capacity C charging after the first switch module 110, or electric capacity C is allowed to discharge through the first switch module 110 and flows out to anode, converter valve submodule is operated in forward current charged state or negative current discharge condition, short-circuit current loop can be cut off, short-circuit current is eliminated rapidly.Linear quadratic control protection module 170 exports block signal and triggers signal to second switch module 130 to the first switch module 110, output, controls the first switch module 110 forward conduction, second switch module 130 positive/negative to conducting；Now electric current passes through second switch module 130, and electric capacity C no current passes through, and converter valve submodule is operated in forward current bypass condition or negative current bypass condition, and DC transmission system is switched to normal operating conditions.
Wherein, first switch module 110 forward conduction, refer to the second end allowing electric current to flow to the first switch module 110 from the first end of the first switch module 110, the first switch module 110 negative sense conducting, refer to the first end allowing electric current to flow to the first switch module 110 from the second end of the first switch module 110；Second switch module 130 forward conduction, refer to the second end allowing electric current to flow to second switch module 130 from the first end of second switch module 130, second switch module 130 negative sense turns on, and refers to the first end allowing electric current to flow to second switch module 130 from the second end of second switch module 130.
Above-mentioned converter valve submodule; it is attempted by electric capacity C two ends after being connected by the 3rd switch module 150 and discharge prevention resistance R2; linear quadratic control protection module 170 controls the 3rd switch module 150 and turns on; electric capacity C can pass through discharge prevention resistance R2 electric discharge; thus preventing electric voltage over press, improve the safety in utilization of converter valve submodule.
Wherein in an embodiment, with reference to Fig. 2, the first switch module 110 includes the first diode D1 and the first switch transistor T 1, and the outfan of the first switch transistor T 1 connects the positive pole of the first diode D1, and common port is as the first end of the first switch module 110；The input of the first switch transistor T 1 connects the negative pole of the first diode D1, and common port is as the second end of the first switch module 110；The control end of the first switch transistor T 1 controls protection module 170 as the control end connecting secondary of the first switch module 110.
Linear quadratic control protection module 170 exports block signal to the first switch transistor T 1; control the first switch transistor T 1 to turn off; electric current is now allowed to be flowed to the second end of the first switch module 110, corresponding first switch module 110 forward conduction from the first end of the first switch module 110 by the first diode D1；Linear quadratic control protection module 170 output triggers signal to the first switch transistor T 1; control the first switch transistor T 1 to turn on; electric current can flow to the first end of the first switch module 110, corresponding first switch module 110 negative sense conducting by the first switch transistor T 1 from the second end of the first switch module 110.The first switch module 110 is constituted, it is possible to achieve the two-way admittance of the first switch module 110, it is simple to the electric current that converter valve submodule difference flows to passes through by the first switch transistor T 1 and the first diode D1 inverse parallel.
With reference to Fig. 3 and Fig. 4, being the operating diagram of converter valve submodule in a specific embodiment, Fig. 3 show the first switch module 110 forward conduction, the conducting of second switch module 130 negative sense, and converter valve submodule is operated in forward current charged state；Fig. 4 show the first switch module 110 negative sense conducting, the conducting of second switch module 130 negative sense, and converter valve submodule is operated in negative current discharge condition.
Wherein in an embodiment, the first switch transistor T 1 is specially audion.Specifically, in the present embodiment, the first switch transistor T 1 is power semiconductor full-controlled switch device.Therefore, linear quadratic control protection module 170 both can control the conducting of the first switch transistor T 1, can control again the shutoff of the first switch transistor T 1, and the convenience that the first switch module 110 conducting flows to switching is high.
Wherein in an embodiment, second switch module 130 includes the second diode D2 and second switch pipe T2, and the input of second switch pipe T2 connects the negative pole of the second diode D2, and common port is as the first end of second switch module 130；The outfan of second switch pipe T2 connects the positive pole of the second diode D2, and common port is as the second end of second switch module 130, and second switch pipe T2 controls the end control end connecting secondary control protection module 170 as second switch module 130.
Linear quadratic control protection module 170 exports block signal to second switch pipe T2; control second switch pipe T2 to turn off; electric current is now allowed to be flowed to the first end of second switch module 130, corresponding second switch module 130 negative sense conducting from the second end of second switch module 130 by the second diode D1；Linear quadratic control protection module 170 output triggers signal to second switch pipe T2; control second switch pipe T2 conducting; electric current can flow to the second end of second switch module 130, corresponding second switch module 130 forward conduction by second switch pipe T2 from the first end of second switch module 130.Second switch module 130 is constituted, it is possible to achieve the two-way admittance of second switch module 130, it is simple to the electric current that converter valve submodule difference flows to passes through by second switch pipe T2 and the second diode D2 inverse parallel.
With reference to Fig. 5 and Fig. 6, it it is the operating diagram of converter valve submodule in a specific embodiment, Fig. 5 show the first switch module 110 forward conduction, second switch module 130 forward conduction, and electric current inputs from anode, and converter valve submodule is operated in forward current bypass condition；Fig. 6 show the first switch module 110 forward conduction, the conducting of second switch module 130 negative sense, and electric current inputs from negative terminal, and converter valve submodule is operated in negative current bypass condition.
Wherein in an embodiment, second switch pipe T2 is specially audion.Specifically, in the present embodiment, second switch pipe T2 is power semiconductor full-controlled switch device.Therefore, linear quadratic control protection module 170 both can control the conducting of second switch pipe T2, can control again the shutoff of second switch pipe T2, and the convenience that second switch module 130 conducting flows to switching is high.
Wherein in an embodiment; 3rd switch module 150 includes the 3rd switch transistor T 3; the input of the 3rd switch transistor T 3 is as the positive pole of the first end connection electric capacity C of the 3rd switch module 150; the outfan of the 3rd switch transistor T 3 connects discharge prevention resistance R2 as the second end of the 3rd switch module 150, and the control end of the 3rd switch transistor T 3 controls protection module 170 as the control end connecting secondary of the 3rd switch module 150.By controlling the break-make of the 3rd switch transistor T 3, it is possible to whether the loop controlling electric capacity C, the 3rd switch transistor T 3 and discharge prevention resistance R2 composition turns on, thus controlling whether electric capacity C discharges.Specifically, in the present embodiment, the 3rd switch transistor T 3 is audion.With reference to Fig. 7, it it is the operating diagram of electric capacity overvoltage electric discharge in a specific embodiment.
Wherein in an embodiment, electric capacity C is DC support electric capacity C.DC support electric capacity C has that proof voltage electric current high, resistance to is big, Low ESR, low inductance, capacity loss is little, leakage current is little, temperature performance is good, charge/discharge rates is fast, long service life, can improve the service efficiency of converter valve submodule.
Wherein in an embodiment, electric capacity C has multiple, and multiple electric capacity C are in parallel in the same direction.Specifically, the quantity of DC support electric capacity C specifically can be arranged according to practical situation.
Wherein in an embodiment, above-mentioned converter valve submodule also includes equalizing resistance R1, equalizing resistance R1 one end and connects the common port of the 3rd switch module 150 and electric capacity C, and the other end connects the common port of discharge prevention resistance R2 and electric capacity C.Equalizing resistance R1 can ensure that the voltage above multiple DC support electric capacity is impartial.
Wherein in an embodiment; above-mentioned converter valve submodule also includes by-pass switch K1; by-pass switch K1 includes the first end, the second end and controls end; first end of by-pass switch K1 connects anode; second end of by-pass switch K1 connects negative terminal, and the control end connecting secondary of by-pass switch K1 controls protection module 170.
Linear quadratic control protection module 170 controls by-pass switch K1 Guan Bi, and electric current flows through by-pass switch K1.Specifically, linear quadratic control protection module 170 exports closure signal to by-pass switch K1, controls by-pass switch K1 Guan Bi.Therefore; when the first switch module 110, second switch module the 130, the 3rd switch module 150, electric capacity C or discharge prevention resistance R2 have fault; module 170 is protected to control by-pass switch K1 Guan Bi by linear quadratic control; thus the first switch module 110, second switch module 130 electric capacity C and discharge prevention resistance R2 are bypassed; electric current still can pass through this converter valve submodule; work without influence on other equipment, it is achieved that fault redundance, improves operational reliability.
With reference to Fig. 8; it it is the operating diagram that there is fault in a specific embodiment in converter valve submodule; by-pass switch K1 closes, and the first switch module 110, second switch module 130, electric capacity C and discharge prevention resistance R2 are all bypassed, and converter valve submodule is operated in failure bypass state.
With reference to Fig. 9 and Figure 10, the modularization multi-level converter in an embodiment, including the above-mentioned converter valve submodule of at least two successively cascade.
Cascade refers to that the anode of current converter valve submodule connects the negative terminal of previous converter valve submodule, and the negative terminal of current converter valve submodule connects the anode of later converter valve submodule.
Wherein, the cascade quantity of converter valve submodule specifically can be arranged according to practical situation, by multiple converter valve submodule concatenated in order in the same direction, adjusts cascade number and can meet the requirement of different electric pressure, different capacity transmission capacity.
Above-mentioned modularization multi-level converter, owing to comprising above-mentioned converter valve submodule, is in like manner possible to prevent electric capacity C overvoltage, improves the safety in utilization of converter valve submodule.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a converter valve submodule; it is characterized in that; protecting module including anode, negative terminal, the first switch module, second switch module, electric capacity, the 3rd switch module, discharge prevention resistance and linear quadratic control, described first switch module, described second switch module and described 3rd switch module include the first end, the second end respectively and control end；
First end of described first switch module connects the first end of described second switch module, and common port connects described anode, second end of described first switch module connects the positive pole of described electric capacity, the control end of described first switch module connects described linear quadratic control protection module, second end of described second switch module connects the negative pole of described electric capacity, and common port connects described negative terminal, the control end of described second switch module connects described linear quadratic control protection module, first end of described 3rd switch module connects the positive pole of described electric capacity, second end of described 3rd switch module connects one end of described discharge prevention resistance, the control end of described 3rd switch module connects described linear quadratic control protection module, the described discharge prevention resistance other end connects the negative pole of described electric capacity；
Described anode and negative terminal are respectively connected to and output voltage, and described linear quadratic control protection module controls described 3rd switch module conducting, makes described electric capacity to described discharge prevention conductive discharge.
2. converter valve submodule according to claim 1; it is characterized in that; described first switch module includes the first diode and the first switching tube; the outfan of described first switching tube connects the positive pole of described first diode; and common port is as the first end of described first switch module; the input of described first switching tube connects the negative pole of described first diode; and common port is as the second end of described first switch module, the control end of described first switching tube connects described linear quadratic control protection module as the control end of described first switch module.
3. converter valve submodule according to claim 2, it is characterised in that described first switching tube is audion.
4. converter valve submodule according to claim 1; it is characterized in that; described second switch module includes the second diode and second switch pipe; the input of described second switch pipe connects the negative pole of described second diode; and common port is as the first end of described second switch module; the outfan of described second switch pipe connects the positive pole of described second diode; and common port is as the second end of described second switch module, the control end of described second switch pipe connects described linear quadratic control protection module as the control end of described second switch module.
5. converter valve submodule according to claim 1; it is characterized in that; described 3rd switch module includes the 3rd switching tube; the input of described 3rd switching tube is as the positive pole of the first end described electric capacity of connection of described 3rd switch module; the outfan of described 3rd switching tube connects described discharge prevention resistance as the second end of described 3rd switch module, and the control end of described 3rd switching tube connects described linear quadratic control protection module as the control end of described 3rd switch module.
6. converter valve submodule according to claim 1, it is characterised in that described electric capacity is DC support electric capacity.
7. the converter valve submodule according to claim 1 or 6, it is characterised in that described electric capacity has multiple, multiple described electric capacity are in parallel in the same direction.
8. converter valve submodule according to claim 7, it is characterised in that also include equalizing resistance, described equalizing resistance one end connects the common port of described 3rd switch module and described electric capacity, and the other end connects the common port of described discharge prevention resistance and described electric capacity.
9. converter valve submodule according to claim 1; it is characterized in that; also include by-pass switch; described by-pass switch includes the first end, the second end and controls end; first end of described by-pass switch connects described anode; second end of described by-pass switch connects described negative terminal, and the control end of described by-pass switch connects described linear quadratic control protection module；
Described linear quadratic control protection module controls described by-pass switch Guan Bi, and electric current flows through described by-pass switch.
10. a modularization multi-level converter, it is characterised in that include the converter valve submodule as described in any one of claim 1-9 of at least two cascade successively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610251574.5A CN105811749A (en) | 2016-04-20 | 2016-04-20 | Converter valve submodule and modular multi-level converter |
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| CN201610251574.5A CN105811749A (en) | 2016-04-20 | 2016-04-20 | Converter valve submodule and modular multi-level converter |
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| CN105811749A true CN105811749A (en) | 2016-07-27 |
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| CN201610251574.5A Pending CN105811749A (en) | 2016-04-20 | 2016-04-20 | Converter valve submodule and modular multi-level converter |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154086A (en) * | 2016-08-05 | 2016-11-23 | 南京南瑞继保电气有限公司 | A kind of MMC dynamic analog submodule unit with topological switching capability |
| CN106787882A (en) * | 2017-01-18 | 2017-05-31 | 国家电网公司 | A kind of MMC submodules for improving transient overvoltage tolerance |
| CN106953509A (en) * | 2017-03-15 | 2017-07-14 | 全球能源互联网研究院 | A kind of Modularized multi-level converter sub-module overvoltage protection |
| CN107689739A (en) * | 2016-08-05 | 2018-02-13 | 南京南瑞继保电气有限公司 | A kind of restructural MMC submodule units and its control unit |
| CN109494752A (en) * | 2018-11-22 | 2019-03-19 | 詹长江 | A kind of centralization resistance energy-consuming device and its control method |
| CN109617108A (en) * | 2018-11-22 | 2019-04-12 | 詹长江 | Chain type energy consumption device and control method thereof |
| CN109787264A (en) * | 2018-11-22 | 2019-05-21 | 詹长江 | A kind of centralization energy-consuming device and its control method |
| CN112436724A (en) * | 2019-08-26 | 2021-03-02 | 南京南瑞继保电气有限公司 | Current conversion device and assembly thereof, reactive power compensation device, current converter and control method thereof |
| WO2021159873A1 (en) * | 2020-02-13 | 2021-08-19 | 南京南瑞继保电气有限公司 | Bidirectional energy balance converter chain, electric energy router, and control method |
| CN114915199A (en) * | 2022-05-06 | 2022-08-16 | 贵州电网有限责任公司 | Bidirectional current conversion circuit for special chip for electric power |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118019A (en) * | 2011-01-14 | 2011-07-06 | 中国电力科学研究院 | Modularized multi-level converter sub-module control and protection method |
| CN102354955A (en) * | 2011-07-22 | 2012-02-15 | 中国电力科学研究院 | Protection method of modular multi-level current converter |
| CN103078539A (en) * | 2013-01-15 | 2013-05-01 | 南京南瑞继保电气有限公司 | Charging method of modular multilevel converter |
-
2016
- 2016-04-20 CN CN201610251574.5A patent/CN105811749A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118019A (en) * | 2011-01-14 | 2011-07-06 | 中国电力科学研究院 | Modularized multi-level converter sub-module control and protection method |
| CN102354955A (en) * | 2011-07-22 | 2012-02-15 | 中国电力科学研究院 | Protection method of modular multi-level current converter |
| CN103078539A (en) * | 2013-01-15 | 2013-05-01 | 南京南瑞继保电气有限公司 | Charging method of modular multilevel converter |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154086A (en) * | 2016-08-05 | 2016-11-23 | 南京南瑞继保电气有限公司 | A kind of MMC dynamic analog submodule unit with topological switching capability |
| CN107689739A (en) * | 2016-08-05 | 2018-02-13 | 南京南瑞继保电气有限公司 | A kind of restructural MMC submodule units and its control unit |
| CN106787882A (en) * | 2017-01-18 | 2017-05-31 | 国家电网公司 | A kind of MMC submodules for improving transient overvoltage tolerance |
| CN106787882B (en) * | 2017-01-18 | 2023-06-23 | 国家电网公司 | MMC submodule capable of improving transient overvoltage tolerance |
| CN106953509A (en) * | 2017-03-15 | 2017-07-14 | 全球能源互联网研究院 | A kind of Modularized multi-level converter sub-module overvoltage protection |
| CN109787264A (en) * | 2018-11-22 | 2019-05-21 | 詹长江 | A kind of centralization energy-consuming device and its control method |
| CN109617108A (en) * | 2018-11-22 | 2019-04-12 | 詹长江 | Chain type energy consumption device and control method thereof |
| CN109494752B (en) * | 2018-11-22 | 2022-04-15 | 詹长江 | Centralized resistance energy consumption device and control method thereof |
| CN109617108B (en) * | 2018-11-22 | 2022-05-13 | 詹长江 | Chain type energy consumption device and control method thereof |
| CN109787264B (en) * | 2018-11-22 | 2022-05-17 | 詹长江 | Centralized energy consumption device and control method thereof |
| CN109494752A (en) * | 2018-11-22 | 2019-03-19 | 詹长江 | A kind of centralization resistance energy-consuming device and its control method |
| CN112436724A (en) * | 2019-08-26 | 2021-03-02 | 南京南瑞继保电气有限公司 | Current conversion device and assembly thereof, reactive power compensation device, current converter and control method thereof |
| CN112436724B (en) * | 2019-08-26 | 2022-05-17 | 南京南瑞继保电气有限公司 | Current conversion device and assembly thereof, reactive power compensation device, current converter and control method thereof |
| WO2021159873A1 (en) * | 2020-02-13 | 2021-08-19 | 南京南瑞继保电气有限公司 | Bidirectional energy balance converter chain, electric energy router, and control method |
| CN114915199A (en) * | 2022-05-06 | 2022-08-16 | 贵州电网有限责任公司 | Bidirectional current conversion circuit for special chip for electric power |
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Application publication date: 20160727 |