CN106160439A - A kind of high voltage transducer power unit shunting device - Google Patents
A kind of high voltage transducer power unit shunting device Download PDFInfo
- Publication number
- CN106160439A CN106160439A CN201610523101.6A CN201610523101A CN106160439A CN 106160439 A CN106160439 A CN 106160439A CN 201610523101 A CN201610523101 A CN 201610523101A CN 106160439 A CN106160439 A CN 106160439A
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- China
- Prior art keywords
- mechanical
- pass
- bypass
- power
- high voltage
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of high voltage transducer power unit shunting device, comprising: the first mechanical by-pass, the second mechanical by-pass, electronic bypass and power cell；Wherein: the first mechanical by-pass and the second mechanical by-pass are in parallel；First mechanical by-pass and the second mechanical by-pass are connected with electronic bypass respectively；First mechanical by-pass, the second mechanical by-pass and electronic bypass are in parallel with the output of power cell respectively.The bypass that the present invention effectively achieves fault power unit in high voltage converter runs, and improves the mean free error time of high voltage converter.
Description
Technical field
The present invention relates to high-voltage frequency converter technology field, particularly relate to a kind of high voltage transducer power unit shunting device.
Background technology
With the development of Power Electronic Technique, frequency converter is as the important component part of Intelligent electronic control system, at national warp
The every field of Ji, as the industries such as electric power, water conservancy, petrochemical industry, metallurgy play more and more important effect.
Cascade connection multi-level type high voltage converter has the advantages such as topological structure is simple, easily controllable, harmonic wave is little and obtains wide
General application.
The industrialized fast development of China promotes motor manufacture and develops to high-power direction with application, high-power
Cascaded high-voltage frequency converter, in order to drag high-voltage high-power motor, is widely used at nuclear power, petrochemical industry, metallurgy industry.Greatly
Power motor is often the Primary Component in corresponding industry, breaks down and whole production system can be caused out of service, even can
Have influence on the stable operation of the infrastructure that corresponding electric power networks, oil gas pipeline etc. involve the interests of the state and the people.
Power cell is the important component part of high voltage converter, owing to the frequency converter of unit cascaded many level block is constituted
The mode of High voltage output, the fault rate of power cell is the highest in frequency converter product when power cell failure how,
Guaranteeing that frequency converter continues to run with the important topic being to improve frequency converter reliability, existing cascade connection multi-level frequency converter mainly uses work(
The mode of rate unit bypass solves this problem, and power unit by-pass mode common at present has two kinds: one is that employing is controlled
Silicon constant power semiconductor devices is as by-pass switch, and another kind is to use contactor as by-pass switch.Two ways is respectively arranged with it
Advantage, reverse-blocking tetrode thyristor has the advantage quickly opened, contactor then has that antijamming capability is strong, reliability is high, have substantially every
Leave the advantages such as breakpoint.
It is usually associated with control electric power loop fault during due to power cell fault, drive the various chain events such as plate fault
Barrier, causes simple electronics to add mechanical by-pass combination and cannot complete the requirement that power unit by-pass runs, still can cause frequency conversion
The unplanned property of device is shut down.
Content of the invention
The invention provides a kind of high voltage transducer power unit shunting device, effectively achieve fault in high voltage converter
The bypass of power cell runs, and improves the mean free error time of high voltage converter.
The invention provides a kind of high voltage transducer power unit shunting device, comprising: the first mechanical by-pass, the second machinery
Bypass, electronic bypass and power cell；Wherein:
Described first mechanical by-pass and the second mechanical by-pass are in parallel；
Described first mechanical by-pass and the second mechanical by-pass are connected with described electronic bypass respectively；
Described first mechanical by-pass, the second mechanical by-pass and electronic bypass are respectively with the output of described power cell simultaneously
Connection.
Preferably, described first mechanical by-pass includes: the first power switch, the first wave filter, the first power module, first
Bypass Control plate and the first mechanical by-pass device；
Described first power switch is connected with described first wave filter；
Described first wave filter is connected with described first power module；
Described first power module is connected with described first Bypass Control plate；
Described first Bypass Control plate is connected with described first mechanical by-pass device；
Described second mechanical by-pass includes: second source switch, the second wave filter, second source module, the second bypass control
Making sheet and the second mechanical by-pass device；
Described second source switch is connected with described second wave filter；
Described second wave filter is connected with described second source module；
Described second source module is connected with described second Bypass Control plate；
Described second Bypass Control plate is connected with described second mechanical by-pass device.
Preferably, described first mechanical by-pass device and the second mechanical by-pass device are contactor.
Preferably, described contactor is made up of control coil and main contact.
Preferably, described electronic bypass includes: diode rectifier circuit and power semiconductor；Wherein:
Described diode rectifier circuit is connected with power semiconductor.
Preferably, described power semiconductor is: controllable silicon, insulated gate bipolar transistor or symmetrical gate commutated crystalline substance
Brake tube.
A kind of high voltage transducer power unit shunting device being provided from such scheme, the present invention, works as power cell
After breaking down, electronic bypass and mechanical by-pass conducting can be simultaneously driven, make fault power unit import rapidly electronic bypass,
Handoff-security is to the first mechanical by-pass again, when the first mechanical by-pass device failure or handoff failure, is led by electronic bypass temporarily
Leading to and being switched to the second mechanical by-pass again, the bypass effectively achieving fault power unit in high voltage converter runs, and improves
The mean free error time of high voltage converter.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the accompanying drawing of required use is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, all right
Obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of high voltage transducer power unit shunting device disclosed by the invention；
Fig. 2 is the structural representation of two-way mechanical by-pass disclosed by the invention；
Fig. 3 is the structural representation of mechanical by-pass device disclosed by the invention；
Fig. 4 is the structural representation of electronic bypass disclosed by the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, be a kind of high voltage transducer power unit shunting device disclosed by the invention, comprising: the first machinery
Bypass the 1st, the second mechanical by-pass the 2nd, electronic bypass 3 and power cell 4；Wherein:
First mechanical by-pass 1 is in parallel with the second mechanical by-pass 2；
First mechanical by-pass 1 is connected with electronic bypass 3 respectively with the second mechanical by-pass 2；
First mechanical by-pass the 1st, the second mechanical by-pass 2 and electronic bypass 3 are in parallel with the output of power cell 4 respectively.
The operation principle of above-described embodiment is: after power cell failure, can simultaneously drive electronic bypass and
One mechanical by-pass conducting, makes fault power unit import rapidly electronic bypass, then handoff-security is to the first mechanical by-pass, first
When mechanical by-pass device failure or handoff failure, turned on by electronic bypass temporarily and be switched to the second mechanical by-pass again, effectively real
The bypass having showed fault power unit in high voltage converter runs, and improves the mean free error time of high voltage converter.
Concrete, as in figure 2 it is shown, the first mechanical by-pass 1 is by the first power switch the 9th, the first wave filter 10 and the first power supply
Module 11 forms current supply circuit and powers to the first Bypass Control plate 5, is driven upon receipt of the instructions by the first Bypass Control plate 5
One mechanical by-pass device 6 action；
12nd, the second wave filter 13 and second source module 14 form current supply circuit to second mechanical by-pass 2 second source switch
Power to the second Bypass Control plate 7, driven the second mechanical by-pass device 8 to move upon receipt of the instructions by the second Bypass Control plate 7
Make.
First mechanical by-pass device 6 and the second mechanical by-pass device 8 generally contactor or similar device, see Fig. 3 institute
Showing, mechanical by-pass contactor is made up of control coil 15 and main contact 16, and both use high_voltage isolation.
Mechanical by-pass device is after the action command receiving Bypass Control plate, by mechanical movement by main noddle on contactor
Adhesive so that main circuit of frequency converter is connected by contactor, thus the power cell striding across fault continues to run with.Mechanical by-pass
Advantage is that heating is little, and operational reliability is high, but the switching action time is longer and the fault that easily switches.
Shown in Figure 4, electronic bypass is made up of diode rectifier circuit 17 and controllable silicon shunting device 18, when power list
After unit 4 breaks down, controllable silicon shunting device 18 action is driven to put into electronic bypass.Wherein, controllable silicon shunting device 18 also may be used
To use insulated gate bipolar transistor or SGCT to substitute.
In sum, the present invention uses completely self-contained two mechanical by-pass, not only effectively make up single channel abnormity of power supply without
The defect of method bypass, can also make mechanical by-pass drive plate circuit design relatively easy, safe and reliable.Meanwhile, double-mechanical is used
Bypass Redundancy Design, is faced by electronic bypass when the power cell of fault is switched to the first mechanical by-pass failure by electronic bypass again
When conducting, again switch to the second mechanical by-pass, it is achieved the purpose continuing to run with do not shut down by frequency converter, effectively increases frequency converter
Reliability, it is to avoid due to power cell fault cause frequency converter shut down cause bigger accident.
If the function described in the present embodiment method realizes and as independent product pin using the form of SFU software functional unit
When selling or use, can be stored in a computing device read/write memory medium.Based on such understanding, the embodiment of the present invention
The part contributing prior art or the part of this technical scheme can embody with the form of software product, and this is soft
Part product is stored in a storage medium, including some instructions with so that computing device (can be personal computer,
Server, mobile computing device or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention
Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), deposit at random
The various media that can store program code such as access to memory (RAM, Random Access Memory), magnetic disc or CD.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, same or similar part sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (6)
1. a high voltage transducer power unit shunting device, it is characterised in that include: the first mechanical by-pass, the second machinery are other
Road, electronic bypass and power cell；Wherein:
Described first mechanical by-pass and the second mechanical by-pass are in parallel；
Described first mechanical by-pass and the second mechanical by-pass are connected with described electronic bypass respectively；
Described first mechanical by-pass, the second mechanical by-pass and electronic bypass are in parallel with the output of described power cell respectively.
2. device according to claim 1, it is characterised in that described first mechanical by-pass includes: the first power switch,
One wave filter, the first power module, the first Bypass Control plate and the first mechanical by-pass device；
Described first power switch is connected with described first wave filter；
Described first wave filter is connected with described first power module；
Described first power module is connected with described first Bypass Control plate；
Described first Bypass Control plate is connected with described first mechanical by-pass device；
Described second mechanical by-pass includes: second source switch, the second wave filter, second source module, the second Bypass Control plate
With the second mechanical by-pass device；
Described second source switch is connected with described second wave filter；
Described second wave filter is connected with described second source module；
Described second source module is connected with described second Bypass Control plate；
Described second Bypass Control plate is connected with described second mechanical by-pass device.
3. device according to claim 2, it is characterised in that described first mechanical by-pass device and the second mechanical by-pass dress
Put and be contactor.
4. device according to claim 3, it is characterised in that described contactor is made up of control coil and main contact.
5. device according to claim 4, it is characterised in that described electronic bypass includes: diode rectifier circuit and work(
Rate semiconductor devices；Wherein:
Described diode rectifier circuit is connected with power semiconductor.
6. device according to claim 5, it is characterised in that described power semiconductor is: controllable silicon, insulated gate are double
Bipolar transistor or SGCT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523101.6A CN106160439A (en) | 2016-07-05 | 2016-07-05 | A kind of high voltage transducer power unit shunting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523101.6A CN106160439A (en) | 2016-07-05 | 2016-07-05 | A kind of high voltage transducer power unit shunting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106160439A true CN106160439A (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610523101.6A Pending CN106160439A (en) | 2016-07-05 | 2016-07-05 | A kind of high voltage transducer power unit shunting device |
Country Status (1)
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| CN (1) | CN106160439A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137902A (en) * | 2019-06-14 | 2019-08-16 | 中国南方电网有限责任公司超高压输电公司天生桥局 | One kind prevents flexible direct current power module by-pass switch from refusing combined floodgate circuit and method |
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| CN101841158A (en) * | 2010-04-09 | 2010-09-22 | 上海电气集团股份有限公司 | 10kV dynamic voltage restorer based on cascade of power units |
| CN202268801U (en) * | 2011-10-13 | 2012-06-06 | 国电南京自动化股份有限公司 | Power unit bypass circuit with redundancy control function |
| CN204258609U (en) * | 2014-10-23 | 2015-04-08 | 北京合力电气传动控制技术有限责任公司 | A kind of high-reliability high frequency converter |
| WO2015090428A1 (en) * | 2013-12-19 | 2015-06-25 | Abb Technology Ltd | Method and system for handling converter cell failure |
| CN204794061U (en) * | 2015-07-27 | 2015-11-18 | 国家电网公司 | Transformer dc magnetic biasing suppression device based on multipleization technique |
| EP3001552A1 (en) * | 2014-09-23 | 2016-03-30 | Alstom Technology Ltd | Voltage source converter and control thereof |
| CN205753964U (en) * | 2016-07-05 | 2016-11-30 | 沈阳远大电力电子科技有限公司 | A kind of high voltage transducer power unit shunting device |
-
2016
- 2016-07-05 CN CN201610523101.6A patent/CN106160439A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841158A (en) * | 2010-04-09 | 2010-09-22 | 上海电气集团股份有限公司 | 10kV dynamic voltage restorer based on cascade of power units |
| CN202268801U (en) * | 2011-10-13 | 2012-06-06 | 国电南京自动化股份有限公司 | Power unit bypass circuit with redundancy control function |
| WO2015090428A1 (en) * | 2013-12-19 | 2015-06-25 | Abb Technology Ltd | Method and system for handling converter cell failure |
| EP3001552A1 (en) * | 2014-09-23 | 2016-03-30 | Alstom Technology Ltd | Voltage source converter and control thereof |
| CN204258609U (en) * | 2014-10-23 | 2015-04-08 | 北京合力电气传动控制技术有限责任公司 | A kind of high-reliability high frequency converter |
| CN204794061U (en) * | 2015-07-27 | 2015-11-18 | 国家电网公司 | Transformer dc magnetic biasing suppression device based on multipleization technique |
| CN205753964U (en) * | 2016-07-05 | 2016-11-30 | 沈阳远大电力电子科技有限公司 | A kind of high voltage transducer power unit shunting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137902A (en) * | 2019-06-14 | 2019-08-16 | 中国南方电网有限责任公司超高压输电公司天生桥局 | One kind prevents flexible direct current power module by-pass switch from refusing combined floodgate circuit and method |
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Application publication date: 20161123 |
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