CN205430083U - Asymmetric many level converter of hybrid module combination of bridge arm - Google Patents
Asymmetric many level converter of hybrid module combination of bridge arm Download PDFInfo
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- CN205430083U CN205430083U CN201520741893.5U CN201520741893U CN205430083U CN 205430083 U CN205430083 U CN 205430083U CN 201520741893 U CN201520741893 U CN 201520741893U CN 205430083 U CN205430083 U CN 205430083U
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- bridge submodule
- switching tube
- brachium pontis
- electric capacity
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- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 2
- 230000002000 scavenging effect Effects 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model provides an asymmetric many level converter of hybrid module combination of bridge arm, its every looks circuit comprises last bridge arm, lower bridge arm, first electric capacity and second electric capacity, it is in full accord with the circuit structure of lower bridge arm to go up the bridge arm. Going up the bridge arm and comprising a N half -bridge submodule piece and first inductance, lower bridge arm comprises a N type full -bridge submodule piece and second inductance. The utility model discloses the many level converter of hybrid module combination have direct current side short -circuit fault from scavenging ability. Compare with the current MMC who only constitutes by half -bridge submodule piece, have direct current side short -circuit fault from scavenging ability, compare with the current MMC who only constitutes by full -bridge submodule piece, saved a large amount of switch tubes, the cost is reduced.
Description
Technical field
This utility model relates to composite module multi-level converter field, is specifically related to the mixing module combination multi-level converter of arm Asymmetry.
Background technology
Along with the development of D.C. high voltage transmission, multi-level converter has obtained huge development.Wherein, block combiner multi-level converter (ModularMultilevelConverter, MMC) is as a kind of novel many level topology, except the advantage with traditional multi-level changer, block combiner multi-level converter uses Modular Structure Design, it is simple to System Expansion and redundancy of effort；Having off-center operation ability, fault traversing and recovery capability, system reliability is high；Owing to having common DC bus, block combiner multi-level converter is particularly suited for HVDC transmission system application.
At present, MMC submodule mainly has half-bridge submodule and full-bridge submodule two kinds.The MMC simple in construction being made up of half-bridge submodule, but not there is dc-side short-circuit fault self-cleaning ability；The MMC being made up of full-bridge submodule has dc-side short-circuit fault self-cleaning ability, but needs double device, and cost is the highest.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, proposes the mixing module combination multi-level converter of arm Asymmetry.
The technical solution adopted in the utility model is: every circuitry phase of the mixing module combination multi-level converter of arm Asymmetry is made up of upper brachium pontis, lower brachium pontis, the first electric capacity and the second electric capacity；Described upper brachium pontis is made up of half-bridge submodule, and described lower brachium pontis is made up of class full-bridge submodule.The positive pole of the first electric capacity is connected with one end, the positive pole of DC transmission system DC side of upper brachium pontis, the other end of upper brachium pontis is connected with one end, the DC transmission system AC of lower brachium pontis, the other end of lower brachium pontis and the negative pole of the second electric capacity, the negative pole of DC transmission system DC side connect, the positive pole of the second electric capacity and the negative pole of the first electric capacity, connect.
Described upper brachium pontis is made up of N number of half-bridge submodule and the first inductance；N number of half-bridge submodule is sequentially connected in series, and forms half-bridge submodule string, and one end of half-bridge submodule string is connected with one end of the first inductance, and the other end of half-bridge submodule string is as one end of upper brachium pontis, and the other end of the first inductance is as the other end of upper brachium pontis.Described lower brachium pontis is made up of N number of class full-bridge submodule and the second inductance；N number of class full-bridge submodule is sequentially connected in series, and forms class full-bridge submodule string, and one end of class full-bridge submodule string is connected with one end of the second inductance, and the other end of class full-bridge submodule string is as one end of lower brachium pontis, and the other end of the second inductance is as the other end of lower brachium pontis.
Further, half-bridge submodule is made up of the first switching tube, second switch pipe and the 3rd electric capacity；The colelctor electrode of the first switching tube and the positive pole of the 3rd electric capacity connect, and the negative pole of the 3rd electric capacity is connected with the emitter stage of second switch pipe, and the emitter stage of the first switching tube is connected with the colelctor electrode of second switch pipe；The colelctor electrode of second switch pipe, emitter stage are as the two ends of half-bridge submodule.
Further, class full-bridge submodule is made up of the 3rd switching tube, the 4th switching tube, the 5th switching tube, diode and the 4th electric capacity；The colelctor electrode of the colelctor electrode of the 3rd switching tube and the positive pole of the 4th electric capacity, the 4th switching tube connects, the emitter stage of the 4th switching tube and the colelctor electrode of the 5th switching tube connect, the emitter stage of the 5th switching tube is connected with the anode of diode, the negative pole of the 4th electric capacity, and the negative electrode of diode and the emitter stage of the 3rd switching tube connect；The emitter stage of the 3rd switching tube, the 4th switching tube emitter stage as the two ends of class full-bridge submodule.
Compared with prior art, this utility model have the advantage that for: there is dc-side short-circuit fault self-cleaning ability.Compared with the existing MMC being only made up of half-bridge submodule, this utility model has dc-side short-circuit fault self-cleaning ability；Compared with the existing MMC being only made up of full-bridge submodule, this utility model uses switching tube number to greatly reduce, and reduces cost.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the mixing module combination multi-level converter of arm Asymmetry of the present utility model；
Fig. 2 is the circuit structure diagram of the half-bridge submodule of the mixing module combination multi-level converter of the arm Asymmetry shown in Fig. 1；
Fig. 3 is the circuit structure diagram of the class full-bridge submodule of the mixing module combination multi-level converter of the arm Asymmetry shown in Fig. 1；
Fig. 4 be three-phase brachium pontis asymmetrical mixing module combination multi-level converter DC side be short-circuited fault time equivalent circuit.
Detailed description of the invention
For of the present utility model content and feature are expanded on further, below in conjunction with accompanying drawing, specific embodiments of the present utility model is specifically described.But enforcement of the present utility model is not limited to this.
With reference to Fig. 1, every circuitry phase of the mixing module combination multi-level converter of arm Asymmetry of the present utility model is by upper brachium pontis 11, lower brachium pontis the 12, first electric capacityC 1With the second electric capacityC 2Composition；Described upper brachium pontis 11 is made up of half-bridge submodule, and described lower brachium pontis 12 is made up of class full-bridge submodule.Wherein, the first electric capacityC 1Positive pole be connected with one end of upper brachium pontis 11, the positive pole 14 of DC transmission system DC side, the other end of upper brachium pontis 11jIt is connected with one end, the DC transmission system AC 13 of lower brachium pontis 12, the other end of lower brachium pontis 12 and the second electric capacityC 2Negative pole, the negative pole 15 of DC transmission system DC side connect, the second electric capacityC 2Positive pole and the first electric capacityC 1Negative pole,nConnect.
Described upper brachium pontis 11 is by N(N >=2) individual half-bridge submodule HSM1、HSM2、……、HSMNWith the first inductanceL 1Constitute；N number of half-bridge submodule (HSM1、HSM2、……、HSMN) be sequentially connected in series, form half-bridge submodule string, one end of half-bridge submodule string and the first inductanceL 1One end connect, the other end of half-bridge submodule string is as one end of upper brachium pontis 11, the first inductanceL 1The other end as the other end of upper brachium pontis 11.Described lower brachium pontis 12 is by N number of class full-bridge submodule (FSM1、FSM2、……、FSMN) and the second inductanceL 2Constitute；N number of class full-bridge submodule (FSM1、FSM2、……、FSMN) be sequentially connected in series, form class full-bridge submodule string, one end of class full-bridge submodule string and the second inductanceL 2One end connect, the other end of class full-bridge submodule string is as one end of lower brachium pontis 12, the second inductanceL 2The other end as the other end of lower brachium pontis 12.
Described half-bridge submodule is as in figure 2 it is shown, by the first switching tubeT 1, second switch pipeT 2With the 3rd electric capacityC 3Constitute；First switching tubeT 1Colelctor electrode and the 3rd electric capacityC 3Positive pole connect, the 3rd electric capacityC 3Negative pole and second switch pipeT 2Emitter stage connect, the first switching tubeT 1Emitter stage and second switch pipeT 2Colelctor electrode connect；Second switch pipeT 2Colelctor electrode, emitter stage is as the two ends of half-bridge submodule；Described switching tube is IGBT.
Described class full-bridge submodule is as it is shown on figure 3, by the 3rd switching tubeT 3, the 4th switching tubeT 4, the 5th switching tubeT 5, diodeDWith the 4th electric capacityC 4Constitute；3rd switching tubeT 3Colelctor electrode and the 4th electric capacityC 4Positive pole, the 4th switching tubeT 4Colelctor electrode connect, the 4th switching tubeT 4Emitter stage and the 5th switching tubeT 5Colelctor electrode connect, the 5th switching tubeT 5Emitter stage and diodeDAnode, the 4th electric capacityC 4Negative pole connect, diodeDNegative electrode and the 3rd switching tubeT 3Emitter stage connect；3rd switching tubeT 3Emitter stage, the 4th switching tubeT 4Emitter stage as the two ends of class full-bridge submodule；Switching tube described in this example is IGBT.
As a example by three-phase brachium pontis asymmetrical mixing module combination multi-level converter, when DC side is short-circuited fault, all switching tubes of locking, its equivalent circuit diagram is as shown in Figure 4, run the three-phase uncontrollable rectifier device being equivalent to DC side parallel electric capacity, short circuit current can be made to reduce rapidly.
Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted by the embodiments; other any without departing from the change made under spirit of the present utility model and principle, modify, substitute, combine, simplify; all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.
Claims (7)
1. arm Asymmetry mixing module combination multi-level converter, it is characterised in that: every circuitry phase of this changer by upper brachium pontis (11), lower brachium pontis (12), the first electric capacity (C 1) and the second electric capacity (C 2) composition；Described upper brachium pontis (11) is made up of half-bridge submodule, and described lower brachium pontis (12) is made up of class full-bridge submodule.
The mixing module combination multi-level converter of arm Asymmetry the most according to claim 1, it is characterised in that: the first electric capacity (C 1) positive pole be connected with one end of upper brachium pontis (11), the positive pole (14) of DC transmission system DC side, the other end of upper brachium pontis (11) (j) be connected with one end, the DC transmission system AC (13) of lower brachium pontis (12), the other end of lower brachium pontis (12) and the second electric capacity (C 2) negative pole, DC transmission system DC side negative pole (15) connect, the second electric capacity (C 2) positive pole and the first electric capacity (C 1) negative pole, (n) connect.
The mixing module combination multi-level converter of arm Asymmetry the most according to claim 1, it is characterised in that: described upper brachium pontis (11) is by N number of half-bridge submodule (HSM1、HSM2、……、HSMN) and the first inductance (L 1) constitute；N number of half-bridge submodule (HSM1、HSM2、……、HSMN) be sequentially connected in series, form half-bridge submodule string, one end of half-bridge submodule string and the first inductance (L 1) one end connect, the other end of half-bridge submodule string as one end of upper brachium pontis (11), the first inductance (L 1) the other end as the other end of upper brachium pontis (11).
The mixing module combination multi-level converter of arm Asymmetry the most according to claim 1, it is characterised in that: described lower brachium pontis (12) is by N number of class full-bridge submodule (FSM1、FSM2、……、FSMN) and the second inductance (L 2) constitute；N number of class full-bridge submodule (FSM1、FSM2、……、FSMN) be sequentially connected in series, form class full-bridge submodule string, one end of class full-bridge submodule string and the second inductance (L 2) one end connect, the other end of class full-bridge submodule string as one end of lower brachium pontis (12), the second inductance (L 2) the other end as the other end of lower brachium pontis (12).
Arm Asymmetry the most according to claim 3 mixing module combination multi-level converter, it is characterised in that: described half-bridge submodule by the first switching tube (T 1), second switch pipe (T 2) and the 3rd electric capacity (C 3) constitute；First switching tube (T 1) colelctor electrode and the 3rd electric capacity (C 3) positive pole connect, the 3rd electric capacity (C 3) negative pole and second switch pipe (T 2) emitter stage connect, the first switching tube (T 1) emitter stage and second switch pipe (T 2) colelctor electrode connect；Second switch pipe (T 2) colelctor electrode, emitter stage is as the two ends of half-bridge submodule；Described switching tube is IGBT.
Arm Asymmetry the most according to claim 4 mixing module combination multi-level converter, it is characterised in that: described class full-bridge submodule by the 3rd switching tube (T 3), the 4th switching tube (T 4), the 5th switching tube (T 5), diode (D) and the 4th electric capacity (C 4) constitute；3rd switching tube (T 3) colelctor electrode and the 4th electric capacity (C 4) positive pole, the 4th switching tube (T 4) colelctor electrode connect, the 4th switching tube (T 4) emitter stage and the 5th switching tube (T 5) colelctor electrode connect, the 5th switching tube (T 5) emitter stage and diode (D) anode, the 4th electric capacity (C 4) negative pole connect, diode (D) negative electrode and the 3rd switching tube (T 3) emitter stage connect；3rd switching tube (T 3) emitter stage, the 4th switching tube (T 4) emitter stage as the two ends of class full-bridge submodule.
7. combine multi-level converter according to the mixing module of the arm Asymmetry described in claim 5 or 6, it is characterised in that: described switching tube is IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520741893.5U CN205430083U (en) | 2015-09-22 | 2015-09-22 | Asymmetric many level converter of hybrid module combination of bridge arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520741893.5U CN205430083U (en) | 2015-09-22 | 2015-09-22 | Asymmetric many level converter of hybrid module combination of bridge arm |
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| CN205430083U true CN205430083U (en) | 2016-08-03 |
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| CN201520741893.5U Expired - Fee Related CN205430083U (en) | 2015-09-22 | 2015-09-22 | Asymmetric many level converter of hybrid module combination of bridge arm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406743A (en) * | 2015-09-22 | 2016-03-16 | 华南理工大学 | Hybrid modular multi-level converter with asymmetric bridge arms |
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2015
- 2015-09-22 CN CN201520741893.5U patent/CN205430083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406743A (en) * | 2015-09-22 | 2016-03-16 | 华南理工大学 | Hybrid modular multi-level converter with asymmetric bridge arms |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 |