CN106301040B - A kind of IGBT burst pulse suppressing method - Google Patents

A kind of IGBT burst pulse suppressing method Download PDF

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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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Prior art keywords
time
ton
igbt
service time
tonmax
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CN106301040A (en
Inventor
肖海乐
顾月刚
张彦杰
潘峰
黄晓峰
俞锋
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Zhejiang Jarol Scientific Instrument Co Ltd
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Zhejiang Jarol Scientific Instrument Co Ltd
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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
    • 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

A kind of IGBT burst pulse suppressing method
[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.
CN201610797335.XA 2016-08-31 2016-08-31 A kind of IGBT burst pulse suppressing method Active CN106301040B (en)

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Application Number Priority Date Filing Date Title
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CN106301040A CN106301040A (en) 2017-01-04
CN106301040B true CN106301040B (en) 2019-11-19

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

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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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