CN106301040B - A kind of IGBT burst pulse suppressing method - Google Patents
A kind of IGBT burst pulse suppressing method Download PDFInfo
- Publication number
- CN106301040B CN106301040B CN201610797335.XA CN201610797335A CN106301040B CN 106301040 B CN106301040 B CN 106301040B CN 201610797335 A CN201610797335 A CN 201610797335A CN 106301040 B CN106301040 B CN 106301040B
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- time
- ton
- igbt
- service time
- tonmax
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 238000004886 process control Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a kind of IGBT burst pulse suppressing method, realize that minimum pulse width inhibits based on software programming, this method comprises: when service time Ton is less than 1/2 dead time TD, then service time Ton=0 is set；When service time Ton is greater than 1/2 dead time TD, it is less than dead time TD, service time Ton=T is setD；Service time Ton subtracts maximum service time Tonmax less than 1/2 dead time TD, then Ton is equal to Tonmax, and otherwise Ton is equal to a switch periods time.A kind of IGBT burst pulse suppressing method of the present invention, based on software programming come the inhibition of real-time implementation minimum pulse width, it solves and employs hardware to realize that minimum pulse width inhibits in the prior art, there is technical issues that the time, pass through process control, there is no time fluctuation situations caused by device error, improve the safety and reliability of IGBT, to improve the working performance of entire invertor operation.
Description
[technical field]
The present invention relates to the technical field of IGBT module burst pulse, in particular to a kind of IGBT burst pulse suppressing method.
[background technique]
Solar power generation, wind-power electricity generation are very big by environmental influence, and the electric energy of generation cannot be delivered directly to power grid, and
Photovoltaic DC-to-AC converter, wind energy inverter ideally solve the problems, such as this.IGBT module is as photovoltaic DC-to-AC converter, wind energy inverter
Electric energy converts pipe fitting device, and the safety and reliability of working performance is directly related to the reliability of entire invertor operation,
IGBT driving burst pulse is a key factor for causing IGBT module to fail, and can be affected greatly to IGBT, or even damage.
When mainly just starting to open due to IGBT or freewheeling diode chip, there are no be full of carrier, at this time turn off IGBT or
Person's diode, current changing rate dic/dt person diF/ dt will increase, and since there are stray inductances for change of current access, can generate higher
It turns off voltage overshoot and increases the reverse recovery current of diode.
Minimum pulse width inhibition is to open or the turn-off time controls the open-minded of semiconductor without sufficiently long in order to prevent
Or shutdown.Traditional method can employ hardware to realize, by a Schmidt trigger with functions of low-pass filter, lead to
It crosses RC and the suitable time is set, but exist since the error of capacitor and other devices will lead to the deficiency that the time changes
Place.In order to solve shortcoming existing for conventional method, the working performance of IGBT is improved, it is necessary to propose a kind of IGBT burst pulse
Suppressing method.
[summary of the invention]
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of IGBT burst pulse suppressing method is provided,
It aims to solve the problem that and employs hardware to realize that minimum pulse width inhibits in the prior art, there is technical issues that the time.
To achieve the above object, it the invention proposes a kind of IGBT burst pulse suppressing method, is realized based on software programming
Minimum pulse width inhibits, this method comprises:
A) when service time Ton is less than 1/2 dead time TD, i.e. Ton < TD/ 2, then service time Ton=0 is set, i.e., not
Open IGBT；
B) when service time Ton is greater than 1/2 dead time TD, it is less than dead time TD, i.e. TD/2<Ton<TD, then setting is opened
Logical time Ton=TD；
C) service time Ton subtracts maximum service time Tonmax less than 1/2 dead time TD, i.e. Ton-Tonmax < TD/
2, then Ton is equal to Tonmax, and otherwise Ton is equal to a switch periods time.
Preferably, the maximum service time Tonmax is in a switch periods, when being equal to a switch periods
Between subtract dead time TD, i.e., in a switch periods, switch periods-T of Tonmax=D。
Preferably, a switch periods are 1/PWM.
Preferably, the PWM indicates the switching frequency of pulse width modulation (PWM) formula.
Preferably, the A), B), C) in service time Ton indicate IGBT open time delay, dead time
TDIndicate the dead time of IGBT.
Beneficial effects of the present invention: compared with prior art, a kind of IGBT burst pulse suppressing method provided by the invention, base
Carry out real-time implementation minimum pulse width in software programming to inhibit, solve and employ hardware to realize that minimum pulse width inhibits in the prior art,
There is technical issues that the time, in such a way that program replaces using other hardware, there is no device errors to cause
Time fluctuation situation, the safety and reliability of IGBT is improved, to improve the working performance of entire invertor operation.
Feature and advantage of the invention will be by implementing to be described in detail.
[specific embodiment]
In order to make the objectives, technical solutions and advantages of the present invention clearer, below by embodiment, to the present invention into
Row is further described.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
In limiting the scope of the invention.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid need not
Obscure idea of the invention in strategic point.
The embodiment of the present invention provides a kind of IGBT burst pulse suppressing method, realizes that minimum pulse width presses down based on software programming
System, this method comprises:
A) when service time Ton is less than 1/2 dead time TD, i.e. Ton < TD/ 2, then service time Ton=0 is set, i.e., not
Open IGBT.
B) when service time Ton is greater than 1/2 dead time TD, it is less than dead time TD, i.e. TD/2<Ton<TD, then setting is opened
Logical time Ton=TD。
C) service time Ton subtracts maximum service time Tonmax less than 1/2 dead time TD, i.e. Ton-Tonmax < TD/
2, then Ton is equal to Tonmax, and otherwise Ton is equal to a switch periods time.
Wherein, for maximum service time Tonmax in a switch periods, equal to one time switch periods time subtracts dead zone
Time TD, i.e., in a switch periods, switch periods-T of Tonmax=D。
Further, a switch periods are 1/PWM, and PWM indicates the switch frequency of pulse width modulation (PWM) formula
Rate.
Further, the A), B), C) in service time Ton indicate the open time delay of IGBT, when dead zone
Between TDIndicate the dead time of IGBT.
A kind of IGBT burst pulse suppressing method of the present invention is solved based on software programming come the inhibition of real-time implementation minimum pulse width
It employs hardware to realize that minimum pulse width inhibits in the prior art, there is technical issues that the time, prevent IGBT narrow
Pulse causes IGBT to fail, and affects greatly to IGBT, or even damage；In such a way that program replaces using other hardware,
There is no time fluctuation situations caused by device error, improve the safety and reliability of IGBT, to improve entire inverse
Become the working performance of device operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (1)
1. a kind of IGBT burst pulse suppressing method, it is characterised in that: realize that minimum pulse width inhibits based on software programming, this method
Include:
A) when service time Ton is less than 1/2 dead time TD, i.e. Ton < TD/ 2, then service time Ton=0 is set, i.e., it is not open-minded
IGBT；
B) when service time Ton is greater than 1/2 dead time TD, it is less than dead time TD, i.e. TD/2<Ton<TD, then when setting is opened
Between Ton=TD；
C) when service time Ton subtracts maximum service time Tonmax less than 1/2 dead time TD, i.e. Ton-Tonmax < TD/ 2,
Then Ton is equal to Tonmax, and otherwise Ton is equal to a switch periods time；The maximum service time Tonmax is once being opened
It closes in the period, equal to one time switch periods time subtracts dead time TD, i.e., in a switch periods, Tonmax=once open
Close period-TD；
Switch periods are 1/PWM, and PWM indicates the switching frequency of pulse width modulation (PWM) formula；Dead time TDTable
Show the dead time of IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797335.XA CN106301040B (en) | 2016-08-31 | 2016-08-31 | A kind of IGBT burst pulse suppressing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797335.XA CN106301040B (en) | 2016-08-31 | 2016-08-31 | A kind of IGBT burst pulse suppressing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106301040A CN106301040A (en) | 2017-01-04 |
| CN106301040B true CN106301040B (en) | 2019-11-19 |
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| CN201610797335.XA Active CN106301040B (en) | 2016-08-31 | 2016-08-31 | A kind of IGBT burst pulse suppressing method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241029B (en) * | 2017-06-20 | 2019-05-31 | 阳光电源股份有限公司 | A kind of burst pulse control method, apparatus and system |
| CN112564520B (en) * | 2019-09-24 | 2022-06-28 | 联合汽车电子有限公司 | PWM signal modulation method and system |
| CN112510978B (en) * | 2020-11-24 | 2021-09-17 | 廊坊英博电气有限公司 | Method, device, equipment and storage medium for suppressing driving narrow pulse |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5282123A (en) * | 1992-12-16 | 1994-01-25 | At&T Bell Laboratories | Clamped mode DC-DC converter |
| CN104158420A (en) * | 2014-08-26 | 2014-11-19 | 阳光电源股份有限公司 | Control method and system of three-phase three-level converter |
| CN105450068A (en) * | 2015-11-26 | 2016-03-30 | 许继电源有限公司 | IGBT narrow pulse suppression method for three-level converter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000312486A (en) * | 1999-04-23 | 2000-11-07 | Hitachi Ltd | Controller for pwm power converter |
| US6897492B2 (en) * | 2002-02-04 | 2005-05-24 | Ixys Corporation | Power device with bi-directional level shift circuit |
-
2016
- 2016-08-31 CN CN201610797335.XA patent/CN106301040B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5282123A (en) * | 1992-12-16 | 1994-01-25 | At&T Bell Laboratories | Clamped mode DC-DC converter |
| CN104158420A (en) * | 2014-08-26 | 2014-11-19 | 阳光电源股份有限公司 | Control method and system of three-phase three-level converter |
| CN105450068A (en) * | 2015-11-26 | 2016-03-30 | 许继电源有限公司 | IGBT narrow pulse suppression method for three-level converter |
Also Published As
| Publication number | Publication date |
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| CN106301040A (en) | 2017-01-04 |
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Application publication date: 20170104 Assignee: Jiaxing Leyao New Energy Co.,Ltd. Assignor: ZHEJIANG JAROL SCIENTIFIC INSTRUMENT Co.,Ltd. Contract record no.: X2023330000384 Denomination of invention: A Narrow Pulse Suppression Method for IGBT Granted publication date: 20191119 License type: Common License Record date: 20230712 |
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Application publication date: 20170104 Assignee: Jiaxing Leyao New Energy Co.,Ltd. Assignor: ZHEJIANG JAROL SCIENTIFIC INSTRUMENT Co.,Ltd. Contract record no.: X2024330000398 Denomination of invention: A narrow pulse suppression method for IGBT Granted publication date: 20191119 License type: Common License Record date: 20240820 |
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