CN102427353B - A kind of IGBT series valve triggers monitoring system and communication means thereof - Google Patents
A kind of IGBT series valve triggers monitoring system and communication means thereof Download PDFInfo
- Publication number
- CN102427353B CN102427353B CN201110425019.7A CN201110425019A CN102427353B CN 102427353 B CN102427353 B CN 102427353B CN 201110425019 A CN201110425019 A CN 201110425019A CN 102427353 B CN102427353 B CN 102427353B
- Authority
- CN
- China
- Prior art keywords
- igbt
- driver element
- electronic device
- valve base
- base electronic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 230000003287 optical effect Effects 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 12
- 210000001367 artery Anatomy 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Power Conversion In General (AREA)
Abstract
The invention belongs to power electronics and field of power, be specifically related to a kind of IGBT series valve and trigger monitoring system and communication means thereof.This monitoring system includes valve base electronic device, IGBT driver element；Described valve base electronic device and IGBT driver element are connected by optical fiber；Described IGBT driver element and insulation bipolar-type power pipe IGBT electrical connection.To providing a kind of triggering and state reporting signal communication means between valve base electronic device VBE and the IGBT driver element of this monitoring system, the method is using optical fiber as communication media, ensure that the reliability of communication, and by certain coded system make triggering signal and state reporting signal have only to two optical fiber just can complete transmission, thus improve communication efficiency, reduce loss of communications, and ensure that connection number minimum between equipment, reduce optical fiber cost.
Description
Technical field
The invention belongs to power electronics and field of power, be specifically related to a kind of IGBT series valve and trigger monitoring system and lead to
Letter method.
Background technology
The semiconductor power switching device insulated gate bipolar translator power tube of 20th century the mid-80 appearance
IGBT (Insulated Gate Biploar Transistor) is a kind of multiple device, and its input controls part and manages for MOSFET,
Output stage is bipolar junction transistor, the advantage having MOSFET pipe and power transistor concurrently: high input impedance, Control of Voltage,
Driving power is little, and switching speed is fast, and operating frequency reduces up to 10-40kHz, saturation pressure, and voltage, current capacity are relatively big, peace
Full working area is wider, but the voltage first that can bear due to single IGBT device, it is difficult to meet high pressure, high-power field
Demand.In order to improve the electric pressure of IGBT application, the method generally using IGBT series connection.Along with Power Electronic Technique
The progressively popularization of application in power system, high pressure valve based on IGBT series equalization technologies is becoming various novel high-power
The core component of power electronic equipment, such as voltage source converter type DC transmission system VSC-HVDC (Voltage Vource
Converter Based HVDC), STATCOM STATCOM (Static Synchronous Compensator),
THE UPFC UPFC (Unified Power Flow Controller) etc..
The cascaded structure of IGBT requires that all IGBT's in valve turns on and off stringent synchronization, turns off the most in advance or postpones open-minded
Device will bear overvoltage, cause device failure.Open for realizing the synchronization of IGBT, turn off, it is necessary at valve control
And between IGBT gate-drive unit, increasing a valve base electronic device, the Trig control signal produced by valve control synchronizes to divide
Each IGBT in dispensing valve.It addition, IGBT gate-drive unit is directly connected to and is arranged on IGBT, it is in high-pressure side,
And valve base electronic device is in earth potential side, it is considered as the transmission of information between the two.
Conventional IGBT type of drive is that shaping processing and amplifying pulse width modulation (PWM) triggering signal process necessary is direct-connected
Gate pole to IGBT.The feature of pwm signal itself determines it and only comprises the two kinds of triggering control information that turn on and off, and table
It it is now continuous print low and high level checker.This just determines this PWM communication mode, and circuit is to pass with higher expense
Defeated low-down quantity of information, causes communication efficiency low and line loss is big.In high pressure IGBT series valve, except valve triggers arteries and veins
Punching distribution link to turn on and off outside signal to IGBT driver element transmission PWM, and IGBT driver element also needs to touch to valve
Send out pulse transmission IGBT duty return signal, state reporting signal packet containing IGBT whether be in overvoltage, cross dv/dt,
The information such as positive voltage loss and short trouble, this will consider the transmission of signal.By increasing order wire way, by various to be passed
Signal is transmitted according to parallel mode, can solve this problem, but in high-power application, each series valve pair
Answering a valve base electronic device, the IGBT quantity that each series valve comprises is the most more, as in 300kV inverter, series valve leads to
Often include the series connection of up to a hundred IGBT, and every corresponding driver element of IGBT.Simple dependence increases circuit number and improves
Communication information capacity can cause equipment room connection increasing number, interface circuit in large scale and line cost rises.
Summary of the invention
It is an object of the invention to for equipment room connection increasing number, interface circuit is in large scale and line cost rising is asked
Topic, proposes to trigger monitoring system and the triggering proposed for this monitoring system and state reporting signal for a kind of IGBT series valve
Communication means.Various state reporting signals are encoded by this communication means according to certain rule, complete on a circuit
Time sharing transmissions.The time occurred due to the various fault of IGBT is different, uses this communication means adding communication information amount
Meanwhile, do not interfere with the real-time of communication, and communication efficiency can be improved, reduce line loss.The principle of its communication means is main
It is to lose fault and short trouble etc. go out according to overvoltage in the most each switch periods of IGBT and dv/dt fault, positive voltage excessively
Existing diverse location and various fault will not occur simultaneously, each IGBT switch periods divided according to the time that fault occurs
For several working hours, carry out corresponding fault detect in each working hour, and fault detection information is believed as state reporting
Number by same optical fiber time sharing transmissions.
It is an object of the invention to use following technical proposals to realize:
A kind of IGBT series valve triggers monitoring system, and it thes improvement is that, described monitoring system includes valve base electronic device
VBE, IGBT driver element；Described valve base electronic device and IGBT driver element are connected by optical fiber；Described IGBT drives
Unit and insulation bipolar-type power pipe IGBT electrical connection.
A kind of preferably technical scheme that the present invention provides is: described valve base electronic device VBE include coding module, decoder module,
Optical transmitting set and optical receiver；Described coding module and decoder module are realized by FPGA control circuit.
The present invention provide the second preferred technical scheme be: described IGBT driver element include optical receiver, optical transmitting set,
Decoder module, triggering circuit, state detection module and guard mode back-reporting module；Described optical transmitting set and optical receiver pass through light
Fibre is connected with optical receiver and the optical transmitting set of valve base electronic device respectively；Described decoder module, state detection module and protection shape
State back-reporting module is realized by FPGA control circuit.
The communication means of the monitoring system a kind of as stated above that the present invention provides based on another object, it thes improvement is that, institute
Each IGBT switch periods is divided at least one working hour by the time that method of stating occurs according to fault；Described method includes
Following step:
A, described valve base electronic device VBE receive the PWM start pulse signal produced in higher level's valve control；
Described PWM start pulse signal and IGBT working hour information are converted into by B, described coding module according to coded system
The discernible pulse signal of IGBT driver element；Described discernible pulse signal passes through fiber-optic transfer to IGBT driver element；
The discernible pulse signal received is decoded by the decoder module in C, described IGBT driver element, makes described arteries and veins
Rushing signals revivification is the form before encoding, and the i.e. PWM start pulse signal of the form before described coding and IGBT working hour believe
Breath；
The PWM start pulse signal that D, described IGBT driver element parse from coding is triggered circuit and completes IGBT
Triggering；Described IGBT working hour information opens failure detector circuit corresponding with working hour for IGBT driver element,
To IGBT working state real-time monitoring, and testing result is converted into state reporting coding fed back by guard mode back-reporting module
To valve base electronic device VBE；Described IGBT working state real-time monitoring is realized by state detection module；
E, described state reporting coding represents failure detection result with impulse form, and described valve base electronic device VBE receives state
Return coding, i.e. valve base electronic device VBE decodes the work of IGBT according to whether receive the period that pulse and pulse occur
State.
A kind of preferably technical scheme that the present invention provides is: described start pulse signal and the coding of IGBT working hour information
Mode includes valve base electronic device VBE and the mode of IGBT driver element counting time delay.
Compared with prior art, the present invention reaches to provide the benefit that:
1, the present invention provide monitoring system and communication means in, IGBT series valve trigger signal synchronize, it is to avoid device due to
Asynchronous triggering and excessive pressure damages.
2, the present invention provide monitoring system and communication means in, IGBT series valve duty real-time repaying, it is to avoid device
Owing to fault is damaged.
3, the present invention provides monitoring system and communication means thereof use optical fibers as between valve base electronic device and IGBT driver element
Trigger signal and the transmission medium of state reporting signal, it is ensured that the reliability of communication and rapidity, and realize high-low pressure equipment room
Electrical isolation.
4, the present invention provides monitoring system and communication means thereof are triggering only use two between allocation unit and IGBT driver element
Root optical fiber, saves fiber count and interface circuit scale, reduces equipment cost and complexity.
Accompanying drawing explanation
Fig. 1 is the general hardware composition schematic diagram that IGBT series valve triggers monitoring system；
Fig. 2 is that IGBT series valve triggers signal and IGBT working hour information encoding-decoding schematic diagram；
Fig. 3 is IGBT series valve state reporting Signal coding schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
The IGBT series valve that the present invention relates to triggers the general hardware of monitoring system and constitutes schematic diagram as shown in Figure 1.In FIG,
Monitoring system includes valve base electronic device and IGBT driver element；Information between valve base electronic device and IGBT driver element
Passage, with two optical fiber as transport vehicle, is equipped with light connection i.e. optical transmitting set in valve base electronic device and IGBT driver element
And optical receiver.Optical fiber connects the electrical isolation on the one hand achieving two equipment rooms, on the other hand, due to transmission on optical fiber
Signal transmission loss is little, anti-interference to by force, and transmission delay is little, it is ensured that the reliability that information transmission and IGBT trigger.
Valve base electronic device includes that coding module, decoder module, optical transmitting set and optical receiver, optical transmitting set and optical receiver are logical
Cross optical fiber to be connected with IGBT driver element optical receiver and optical transmitting set respectively；Coding module and decoder module can pass through FPGA
Control circuit realizes its function, it is possible to realize its function by other control circuits.
IGBT driver element includes optical receiver, optical transmitting set, decoder module, triggering circuit, guard mode back-reporting module and shape
State detection module；Optical transmitting set and optical receiver are connected with valve base electronic device optical receiver and optical transmitting set respectively by optical fiber；
Decoder module, guard mode back-reporting module and state detection module can realize its function by FPGA control circuit, it is also possible to
Its function is realized by other control circuits；Triggering circuit is to have some stable states or astable circuit, at least one of which
It is stable state, and is designed to when applying a suitable pulse to start required transformation.FPGA control circuit mainly by
Fpga chip realizes.
Specific works principle: valve base electronic device VBE receives the PWM triggering pulse that higher level's valve control produces.Coding module
PWM start pulse signal and IGBT working hour information are converted into IGBT driver element according to the coded system of agreement permissible
The pulse code identified, the pulse code that can identify is transferred to IGBT driver element, IGBT driver element by optical-fibre channel
In decoder module the pulse code received is decoded so that it is be reduced to coding before form, the form before coding is
PWM start pulse signal and IGBT working hour information.The PWM that IGBT driver element parses from coding triggers arteries and veins
Punching is triggered circuit and completes the triggering to IGBT；IGBT working hour information is opened and working hour for IGBT driver element
Corresponding failure detector circuit, to IGBT working state real-time monitoring, and gives testing result transition status return encoder feedback
Valve base electronic device, valve base electronic device VBE receives state reporting by optical fiber and encodes, and draws series valve by decoder module
In each IGBT status information.
IGBT series valve triggering signal and IGBT working hour information encoding-decoding schematic diagram are as shown in Figure 2.Valve base electronic device leads to
Cross the modes such as time delay counting and switch periods is divided into some working hours, working hour information and pwm pulse signal are synthesized
It is sent to IGBT driver element for triggering coding；IGBT driver element decomposites PWM by decoder module after receiving coding
Waveform and period information.IGBT series valve state reporting Signal coding schematic diagram is as shown in Figure 3.State reporting encodes with pulse form
Formula represents failure detection result, and the decoder module of valve base electronic device is according to whether receive the period decoding of pulse and pulse appearance
Go out the duty of IGBT；Wherein, failure detector circuit be to the overvoltage being likely to occur in IGBT work process, cross dv/dt,
Under-voltage and short trouble carries out the circuit detected, and can realize with software and hardware.
Trigger pulse and working hour coded system can have multiple, valve base electronic device and IGBT driver element can be used to divide
Do not count the mode of time delay.
The invention provides the triggering between a kind of valve base electronic device and IGBT driver element and state reporting signal communication means,
This communication means is using optical fiber as communication media, it is ensured that the reliability of communication, and makes triggering signal by certain coded system
Have only to two optical fiber with state reporting signal and just can complete transmission, thus improve communication efficiency, reduce loss of communications,
And ensure that connection number minimum between equipment, reduce optical fiber cost.
Finally should be noted that: above example only in order to the technical scheme of the application to be described rather than restriction to its protection domain,
Although being described in detail the application with reference to above-described embodiment, those of ordinary skill in the field are it is understood that ability
Field technique personnel still can carry out all changes, amendment or equivalent to the detailed description of the invention of application after reading the application,
These changes, amendment or equivalent, it is all within the right that its application is awaited the reply.
Claims (1)
1. the communication means of an IGBT series valve monitoring system, it is characterised in that described IGBT series valve triggers monitoring system
System includes valve base electronic device VBE, IGBT driver element；Described valve base electronic device and IGBT driver element pass through optical fiber
Connect；Described IGBT driver element and insulation bipolar-type power pipe IGBT electrical connection；
Described valve base electronic device VBE includes coding module, decoder module, optical transmitting set and optical receiver；Described coding module
Realized by FPGA control circuit with decoder module；
Described IGBT driver element include optical receiver, optical transmitting set, decoder module, triggering circuit, state detection module and
Guard mode back-reporting module；Described optical transmitting set and optical receiver by optical fiber respectively with optical receiver and the light of valve base electronic device
Emitter connects；Described decoder module, state detection module and guard mode back-reporting module are realized by FPGA control circuit；
Each IGBT switch periods is divided at least one working hour by the time that described method occurs according to fault；
Described method comprises the steps:
A, described valve base electronic device VBE receive the PWM start pulse signal produced in higher level's valve control；
Described PWM start pulse signal and IGBT working hour information are converted into by B, described coding module according to coded system
The discernible pulse signal of IGBT driver element；Described discernible pulse signal passes through fiber-optic transfer to IGBT driver element；
The discernible pulse signal received is decoded by the decoder module in C, described IGBT driver element, makes described arteries and veins
Rushing signals revivification is the form before encoding, and the i.e. PWM start pulse signal of the form before described coding and IGBT working hour believe
Breath；
The PWM start pulse signal that D, described IGBT driver element parse from coding is triggered circuit and completes IGBT
Triggering；Described IGBT working hour information opens failure detector circuit corresponding with working hour for IGBT driver element,
To IGBT working state real-time monitoring, and testing result is converted into state reporting coding fed back by guard mode back-reporting module
To valve base electronic device VBE；Described IGBT working state real-time monitoring is realized by state detection module；
E, described state reporting coding represents failure detection result with impulse form, and described valve base electronic device VBE receives state
Return coding, i.e. valve base electronic device VBE decodes the work of IGBT according to whether receive the period that pulse and pulse occur
State；
The coded system of described start pulse signal and IGBT working hour information includes that valve base electronic device VBE and IGBT drives
The mode of moving cell counting time delay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425019.7A CN102427353B (en) | 2011-12-16 | 2011-12-16 | A kind of IGBT series valve triggers monitoring system and communication means thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110425019.7A CN102427353B (en) | 2011-12-16 | 2011-12-16 | A kind of IGBT series valve triggers monitoring system and communication means thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102427353A CN102427353A (en) | 2012-04-25 |
| CN102427353B true CN102427353B (en) | 2016-08-10 |
Family
ID=45961303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110425019.7A Active CN102427353B (en) | 2011-12-16 | 2011-12-16 | A kind of IGBT series valve triggers monitoring system and communication means thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102427353B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259254B (en) * | 2013-05-21 | 2015-09-02 | 南京南瑞继保电气有限公司 | A kind of series IGBT valve unit protection system and guard method |
| CN104135266B (en) | 2014-06-25 | 2018-02-27 | 台达电子企业管理（上海）有限公司 | Drive device and driving method |
| CN105262063B (en) * | 2015-10-27 | 2018-08-14 | 国网智能电网研究院 | IGBT valve protection system and method in a kind of high voltage DC breaker |
| CN106230413A (en) * | 2016-08-18 | 2016-12-14 | 平高集团有限公司 | A kind of mixed type high voltage DC breaker and power cell thereof |
| CN109962473A (en) * | 2017-12-14 | 2019-07-02 | 中电普瑞科技有限公司 | A kind of Control protection system of THE UPFC UPFC |
| CN111103829B (en) * | 2019-12-11 | 2024-05-17 | 旋智电子科技（上海）有限公司 | Motor control device and method |
| CN112383297B (en) * | 2021-01-15 | 2021-03-23 | 杭州飞仕得科技有限公司 | IGBT driver |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478225A (en) * | 2008-12-19 | 2009-07-08 | 中国电力科学研究院 | Communication method by using series connection valve triggering signal of high voltage electric and electronic device |
| CN102035189A (en) * | 2010-10-12 | 2011-04-27 | 中国电力科学研究院 | Novel monitoring and protecting system for test thyristor of converter valve module |
| CN102045049A (en) * | 2010-10-18 | 2011-05-04 | 中国电力科学研究院 | Novel IGBT high-voltage series valve control and monitoring system |
-
2011
- 2011-12-16 CN CN201110425019.7A patent/CN102427353B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478225A (en) * | 2008-12-19 | 2009-07-08 | 中国电力科学研究院 | Communication method by using series connection valve triggering signal of high voltage electric and electronic device |
| CN102035189A (en) * | 2010-10-12 | 2011-04-27 | 中国电力科学研究院 | Novel monitoring and protecting system for test thyristor of converter valve module |
| CN102045049A (en) * | 2010-10-18 | 2011-05-04 | 中国电力科学研究院 | Novel IGBT high-voltage series valve control and monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 静止无功补偿器光电触发与监测系统设计与仿真;黄舜等;《现代电力》;20060228;第23卷(第1期);第29-33页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102427353A (en) | 2012-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102427353B (en) | A kind of IGBT series valve triggers monitoring system and communication means thereof | |
| CN104065253A (en) | Power conversion device, driving device and driving method thereof | |
| CN102035189B (en) | Novel monitoring and protecting system for test thyristor of converter valve module | |
| CN203039567U (en) | IGBT driving device based on CPLD | |
| CN101478225A (en) | Communication method by using series connection valve triggering signal of high voltage electric and electronic device | |
| CN104579501A (en) | Optical communication system and method based on laser power supply | |
| CN102082563A (en) | IGBT (insulated gate bipolar transistor) driver, signal processing method, motor control system and vehicle | |
| CN100570661C (en) | System for transmitting control signal of high voltage frequency converter power unit | |
| CN106610601A (en) | Operation state monitoring device of IGBT component | |
| CN103138601B (en) | Four-quadrant power component and conversion cabinet | |
| CN108400780A (en) | Has the power semiconductor driving element apparatus and system of data acquisition function | |
| CN105578689A (en) | Power saver with power line carrier unit | |
| CN201628861U (en) | Bus transmission system | |
| CN203135826U (en) | Drive circuit of voltage type gate control device | |
| CN110752743A (en) | High-voltage direct-current power supply module system for seabed observation network | |
| CN103151905B (en) | A kind of many IGCT synchronizable optical pulsed triggering circuits | |
| CN102355303B (en) | Optical fibre communication method for transmission of inverter pulse width modulation signals | |
| CN211456993U (en) | High-reliability direct connection prevention protection circuit driven by IGBT/MOSFET optocouplers | |
| CN108683260B (en) | Redundancy control system, method and management control device suitable for direct current transmission | |
| CN113783405A (en) | Direct-current transmission converter valve thyristor trigger monitoring system and control method thereof | |
| CN203233299U (en) | IGBT drive circuit for braking of urban rail vehicle traction converter | |
| CN203632640U (en) | Two-way transmission interface converting circuit | |
| CN106160429A (en) | Emergency power supply information transmission system based on fiber-optic signal | |
| CN202872759U (en) | Strong photoelectric triggering device of thyristor for high-voltage TSC (Thyristor Switched Capacitor) | |
| CN203032702U (en) | System for information transmission between railway stations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130520 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |