CN204168144U - The two-way shielding system of a kind of high frequency - Google Patents
The two-way shielding system of a kind of high frequency Download PDFInfo
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- CN204168144U CN204168144U CN201420634170.0U CN201420634170U CN204168144U CN 204168144 U CN204168144 U CN 204168144U CN 201420634170 U CN201420634170 U CN 201420634170U CN 204168144 U CN204168144 U CN 204168144U
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- 238000002955 isolation Methods 0.000 claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims description 39
- 230000000694 effects Effects 0.000 claims description 31
- 230000005669 field effect Effects 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 9
- 239000010408 film Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Abstract
The utility model provides a kind of high frequency two-way shielding system, comprises low-pressure side unit, the two-way isolating transformer of high frequency and high-pressure side unit; Described low-pressure side unit connects the low-pressure end of the two-way isolating transformer of described high frequency, and described high-pressure side unit connects the high-pressure side of the two-way isolating transformer of described high frequency.The utility model solves in power electronic system unsteady flow field, requires the contradiction simultaneously possessing high-frequency isolation, energy in bidirectional flow, buck, has extremely strong novelty.The application of this topology effectively can improve integrated level and the stability of whole system, easily meets system high-frequency isolation, Two-way energy transfer, stepping functions simultaneously, has little, the lightweight feature of volume; Realize energy efficient, precisely, as required transmit.There is stronger novelty, the innovation application in power electronic system unsteady flow field can be contributed to, be expected to bring larger economic benefit and social benefit.
Description
Technical field
The utility model belongs to electric and electronic technical field, is specifically related to the two-way shielding system of a kind of high frequency.
Background technology
In power electronic system, device in some unsteady flow fields or equipment, its input, to export be generally that an excursion is larger, the very large source and its output is that a fluctuation is very little of even fluctuating, relatively-stationary value, therefore requires that its inside should possess stepping functions.Can according to safety, place needs in industry and some place of civil area, require the input of power electronic equipment, output possesses electrical isolation, little, the lightweight function of volume; Also have some equipment to need according to different operating mode, requirement was both charged to it by external power source, also can give external loading energy supply electric discharge, this can realize the function of Two-way energy transfer with regard to possessing in claimed apparatus.These demands above, industry universal solution is exactly single integrated reply according to demand.If when above requirement all meets, according to the general way that plays with building blocks, whole system is extremely too fat to move, huge and expensive, cannot really meet customer need, more without market popularization value.And possess buck, the unit of high isolation features is in core position in above field and industry convertor assembly, require it should have high reliability, high conversion efficiency, volume are little, lightweight, input, export high electrical isolation, energy can bi-directional function.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides the two-way shielding system of a kind of high frequency, solve in power electronic system unsteady flow field, require the contradiction simultaneously possessing high-frequency isolation, energy in bidirectional flow, buck, there is extremely strong novelty.The application of this topology effectively can improve integrated level and the stability of whole system, easily meets system high-frequency isolation, Two-way energy transfer, stepping functions simultaneously, has little, the lightweight feature of volume; Can be the convertor assembly of main flow on the market as photovoltaic combining inverter, from net inverter, the two-way inverter of energy storage, wind-force current transformer, DC converter, provides required electric pressure; Realize energy efficient, precisely, as required transmit.There is stronger novelty, the innovation application in power electronic system unsteady flow field can be contributed to, be expected to bring larger economic benefit and social benefit.
To achieve these goals, the utility model takes following scheme:
The utility model provides a kind of high frequency two-way shielding system, and described system comprises low-pressure side unit, the two-way isolating transformer of high frequency and high-pressure side unit; Described low-pressure side unit connects the low-pressure end of the two-way isolating transformer of described high frequency, and described high-pressure side unit connects the high-pressure side of the two-way isolating transformer of described high frequency.
Described low-pressure side unit comprises low-voltage direct Support Capacitor C1, High frequency power field-effect transistor T5, high-frequency inductor L1, high-frequency inductor L2, field of electric force effect transistor T1 and field of electric force effect transistor T2.
The positive pole of described low-voltage direct Support Capacitor C1 connects the source electrode of High frequency power field-effect transistor T5, its minus earth; The drain electrode of described High frequency power field-effect transistor T5 connects one end of high-frequency inductor L1 and high-frequency inductor L2 simultaneously, high-frequency inductor L1 is connected the drain electrode of field of electric force effect transistor T1 and field of electric force effect transistor T2 respectively with the other end of high-frequency inductor L2, field of electric force effect transistor T1 is connected with the low-pressure end of high-frequency isolation transformer respectively with the source electrode of field of electric force effect transistor T2 simultaneously, the source grounding of field of electric force effect transistor T1 and field of electric force effect transistor T2.
Described High frequency power field-effect transistor T5 is that N links up enhanced power field effect transistor, and its operating frequency reaches more than 20lHz, and inside is provided with fly-wheel diode.
Described field of electric force effect transistor T1 and field of electric force effect transistor T2 is N and links up enhanced power field effect transistor, and both operating frequencies are up to more than 20lHz, and inside is respectively equipped with fly-wheel diode.
The two-way isolating transformer of described high frequency is divided into low-pressure end and high-pressure side, and described high-frequency isolation transformer can tolerate the high-frequency ac voltage of at least 20kHz, and its no-load voltage ratio is 1:1; Described high-frequency isolation transformer low-pressure end and high-pressure side all tolerate more than 3000lV power frequency high voltage and impact, and operating altitude height is not less than 3000 meters.
Described high-pressure side unit comprises capacitance C4, can turn off power electronic device T3, can turn off power electronic device T4, high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3.
Described capacitance C4 is connected on high-frequency isolation transformer high-pressure side, the described emitter turning off power electronic device T3 is connected with the collector electrode that can turn off power electronic device T4, be connected with high-frequency isolation transformer high-pressure side simultaneously, the grounded emitter of power electronic device T4 can be turned off; The positive pole of described high voltage direct current Support Capacitor C2 connects the collector electrode that can turn off power electronic device T3, its negative pole connects high-frequency isolation transformer high-pressure side by capacitance C4, connect the positive pole of high voltage direct current Support Capacitor C3, the minus earth of described high voltage direct current Support Capacitor C3 simultaneously.
Described capacitance C4 adopts can the metal film electric capacity that impacts of high frequency tolerant ripple.
Describedly turn off power electronic device T3 and power electronic device T4 can be turned off include insulated gate bipolar tran sistor and fly-wheel diode antiparallel with insulated gate bipolar tran sistor.
Described high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3 includes the monomer electric capacity of multiple parallel connection, and the monomer electric capacity quantity of high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3 inside is equal; Described monomer electric capacity adopts electrochemical capacitor or thin-film capacitor.
Compared with prior art, the beneficial effects of the utility model are:
1, solve in power electronic system unsteady flow field, require the contradiction simultaneously possessing high-frequency isolation, Two-way energy transfer, buck; Based on the convertor assembly of this topology, innovative change will be brought in volume miniaturization, high efficiency, integrated High Level, have qualitative leap to the raising stability of a system;
2, low-pressure side unit has wide input voltage range, and operating frequency is high, voltage, Current adjustment responsiveness block, output voltage current harmonics little, the advantages such as own loss is low;
3, high-frequency isolation transformer achieves the electrical isolation between low-pressure side unit and high-pressure side unit, achieves the bi-directional of energy.Simultaneously by the energy transferring pattern of high frequency, effectively improve energy transfer efficiency, greatly reduce the volume and weight of transformer, for long-acting economic benefit is brought in the aspects such as whole converter system equipment miniaturization, easily assembling, field wiring;
4, high-pressure side unit has wide input voltage range, and output voltage is high, operating frequency is high, voltage, Current adjustment responsiveness block, output voltage current harmonics little, the advantages such as own loss is low;
5, high-frequency inductor L1 and high-frequency inductor L2 magnetic core adopt new material non-crystaline amorphous metal, and this material great advantage is that magnetic flux density is high, magnetic permeability is high, and not easily saturated, loss is little, high frequency, and filter effect is good.Own loss is low, effectively improves entire system efficiency.
Accompanying drawing explanation
Fig. 1 is the two-way shielding system structure chart of the utility model embodiment medium-high frequency.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Fig. 1, the utility model provides a kind of high frequency two-way shielding system, and described system comprises low-pressure side unit, the two-way isolating transformer of high frequency and high-pressure side unit; Described low-pressure side unit connects the low-pressure end of the two-way isolating transformer of described high frequency, and described high-pressure side unit connects the high-pressure side of the two-way isolating transformer of described high frequency.
Described low-pressure side unit comprises low-voltage direct Support Capacitor C1, High frequency power field-effect transistor T5, high-frequency inductor L1, high-frequency inductor L2, field of electric force effect transistor T1 and field of electric force effect transistor T2.
The positive pole of described low-voltage direct Support Capacitor C1 connects the source electrode of High frequency power field-effect transistor T5, its minus earth; The drain electrode of described High frequency power field-effect transistor T5 connects one end of high-frequency inductor L1 and high-frequency inductor L2 simultaneously, high-frequency inductor L1 is connected the drain electrode of field of electric force effect transistor T1 and field of electric force effect transistor T2 respectively with the other end of high-frequency inductor L2, field of electric force effect transistor T1 is connected with the low-pressure end of high-frequency isolation transformer respectively with the source electrode of field of electric force effect transistor T2 simultaneously, the source grounding of field of electric force effect transistor T1 and field of electric force effect transistor T2.
Described High frequency power field-effect transistor T5 is that N links up enhanced power field effect transistor, and its operating frequency reaches more than 20lHz, and inside is provided with fly-wheel diode.
Described field of electric force effect transistor T1 and field of electric force effect transistor T2 is N and links up enhanced power field effect transistor, and both operating frequencies are up to more than 20lHz, and inside is respectively equipped with fly-wheel diode.
The two-way isolating transformer of described high frequency is divided into low-pressure end and high-pressure side, and described high-frequency isolation transformer can tolerate the high-frequency ac voltage of at least 20kHz, and its no-load voltage ratio is 1:1; Described high-frequency isolation transformer low-pressure end and high-pressure side all tolerate more than 3000lV power frequency high voltage and impact, and operating altitude height is not less than 3000 meters.
Described high-pressure side unit comprises capacitance C4, can turn off power electronic device T3, can turn off power electronic device T4, high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3.
Described capacitance C4 is connected on high-frequency isolation transformer high-pressure side, the described emitter turning off power electronic device T3 is connected with the collector electrode that can turn off power electronic device T4, be connected with high-frequency isolation transformer high-pressure side simultaneously, the grounded emitter of power electronic device T4 can be turned off; The positive pole of described high voltage direct current Support Capacitor C2 connects the collector electrode that can turn off power electronic device T3, its negative pole connects high-frequency isolation transformer high-pressure side by capacitance C4, connect the positive pole of high voltage direct current Support Capacitor C3, the minus earth of described high voltage direct current Support Capacitor C3 simultaneously.
Described capacitance C4 adopts can the metal film electric capacity that impacts of high frequency tolerant ripple.
Describedly turn off power electronic device T3 and power electronic device T4 can be turned off include insulated gate bipolar tran sistor and fly-wheel diode antiparallel with insulated gate bipolar tran sistor.
Described high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3 includes the monomer electric capacity of multiple parallel connection, and the monomer electric capacity quantity of high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3 inside is equal; Described monomer electric capacity adopts electrochemical capacitor or thin-film capacitor.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; those of ordinary skill in the field still can modify to embodiment of the present utility model with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of the utility model spirit and scope or equivalent replacement, are all applying within the claims of the present utility model awaited the reply.
Claims (10)
1. the two-way shielding system of high frequency, is characterized in that: described system comprises low-pressure side unit, the two-way isolating transformer of high frequency and high-pressure side unit; Described low-pressure side unit connects the low-pressure end of the two-way isolating transformer of described high frequency, and described high-pressure side unit connects the high-pressure side of the two-way isolating transformer of described high frequency.
2. the two-way shielding system of high frequency according to claim 1, is characterized in that: described low-pressure side unit comprises low-voltage direct Support Capacitor C1, High frequency power field-effect transistor T5, high-frequency inductor L1, high-frequency inductor L2, field of electric force effect transistor T1 and field of electric force effect transistor T2.
3. the two-way shielding system of high frequency according to claim 2, is characterized in that: the positive pole of described low-voltage direct Support Capacitor C1 connects the source electrode of High frequency power field-effect transistor T5, its minus earth; The drain electrode of described High frequency power field-effect transistor T5 connects one end of high-frequency inductor L1 and high-frequency inductor L2 simultaneously, high-frequency inductor L1 is connected the drain electrode of field of electric force effect transistor T1 and field of electric force effect transistor T2 respectively with the other end of high-frequency inductor L2, field of electric force effect transistor T1 is connected with the low-pressure end of high-frequency isolation transformer respectively with the source electrode of field of electric force effect transistor T2 simultaneously, the source grounding of field of electric force effect transistor T1 and field of electric force effect transistor T2.
4. the two-way shielding system of the high frequency according to Claims 2 or 3, is characterized in that: described High frequency power field-effect transistor T5 is that N links up enhanced power field effect transistor, and its operating frequency reaches more than 20kHz, and inside is provided with fly-wheel diode.
5. the two-way shielding system of the high frequency according to Claims 2 or 3, it is characterized in that: described field of electric force effect transistor T1 and field of electric force effect transistor T2 is N and links up enhanced power field effect transistor, both operating frequencies are up to more than 20kHz, and inside is respectively equipped with fly-wheel diode.
6. the two-way shielding system of high frequency according to claim 1, is characterized in that: the two-way isolating transformer of described high frequency is divided into low-pressure end and high-pressure side, and described high-frequency isolation transformer can tolerate the high-frequency ac voltage of at least 20kHz, and its no-load voltage ratio is 1:1; Described high-frequency isolation transformer low-pressure end and high-pressure side all tolerate more than 3000kV power frequency high voltage and impact, and operating altitude height is not less than 3000 meters.
7. the two-way shielding system of high frequency according to claim 1, is characterized in that: described high-pressure side unit comprises capacitance C4, can turn off power electronic device T3, can turn off power electronic device T4, high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3.
8. the two-way shielding system of high frequency according to claim 7, it is characterized in that: described capacitance C4 is connected on high-frequency isolation transformer high-pressure side, the described emitter turning off power electronic device T3 is connected with the collector electrode that can turn off power electronic device T4, be connected with high-frequency isolation transformer high-pressure side simultaneously, the grounded emitter of power electronic device T4 can be turned off; The positive pole of described high voltage direct current Support Capacitor C2 connects the collector electrode that can turn off power electronic device T3, its negative pole connects high-frequency isolation transformer high-pressure side by capacitance C4, connect the positive pole of high voltage direct current Support Capacitor C3, the minus earth of described high voltage direct current Support Capacitor C3 simultaneously.
9. the two-way shielding system of the high frequency according to claim 7 or 8, is characterized in that: described capacitance C4 adopts can the metal film electric capacity that impacts of high frequency tolerant ripple;
Describedly turn off power electronic device T3 and power electronic device T4 can be turned off include insulated gate bipolar tran sistor and fly-wheel diode antiparallel with insulated gate bipolar tran sistor.
10. the two-way shielding system of the high frequency according to claim 7 or 8, it is characterized in that: described high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3 includes the monomer electric capacity of multiple parallel connection, and the monomer electric capacity quantity of high voltage direct current Support Capacitor C2 and high voltage direct current Support Capacitor C3 inside is equal; Described monomer electric capacity adopts electrochemical capacitor or thin-film capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420634170.0U CN204168144U (en) | 2014-10-29 | 2014-10-29 | The two-way shielding system of a kind of high frequency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420634170.0U CN204168144U (en) | 2014-10-29 | 2014-10-29 | The two-way shielding system of a kind of high frequency |
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| CN204168144U true CN204168144U (en) | 2015-02-18 |
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| CN201420634170.0U Expired - Fee Related CN204168144U (en) | 2014-10-29 | 2014-10-29 | The two-way shielding system of a kind of high frequency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634288A (en) * | 2016-01-04 | 2016-06-01 | 河南理工大学 | Supercapacitor energy storage system based bidirectional DC/DC converter topology |
| US10389434B1 (en) | 2018-11-06 | 2019-08-20 | Analog Devices, Inc. | Bi-directional data isolator with dynamic communication |
-
2014
- 2014-10-29 CN CN201420634170.0U patent/CN204168144U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634288A (en) * | 2016-01-04 | 2016-06-01 | 河南理工大学 | Supercapacitor energy storage system based bidirectional DC/DC converter topology |
| US10389434B1 (en) | 2018-11-06 | 2019-08-20 | Analog Devices, Inc. | Bi-directional data isolator with dynamic communication |
| US10659150B1 (en) | 2018-11-06 | 2020-05-19 | Analog Devices, Inc. | Bi-directional data isolator with dynamic communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: China Electric Prime Technology Co., Ltd. Patentee after: State Grid Corporation of China Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: State Grid Smart Grid Institute Patentee before: State Grid Corporation of China Co-patentee before: China Electric Prime Technology Co., Ltd. |
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| 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: 20150218 Termination date: 20181029 |