CN102412737A - Insulated gate bipolar transistor (IGBT) module formed by double-parallel transistor units for wind power converter - Google Patents
Insulated gate bipolar transistor (IGBT) module formed by double-parallel transistor units for wind power converter Download PDFInfo
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Abstract
本发明涉及风力发电设备部件，具体是一种双管并联单元风电变流器IBGT模块。包括有位于三相交流端和直流正负极之间的三对上管IBGT单元和下管IGBT单元，所述每一个上管IGBT单元和下管IGBT单元均由两个相同的IGBT并联而成。本发明采用并联IBGT构成上管IGBT单元和下管IGBT单元，可以提供更高的电流密度，不仅具有较高的性价比，并且可以均匀热分布，延长元件寿命；提高其运行可靠性；栅极的驱动回路的设计，使并联IGBT采用同一个驱动器，驱动回路完全对称，降低了驱动回路之间的传输延时差，实现了较好的动态均流。
The invention relates to components of wind power generating equipment, in particular to an IBGT module of a double-pipe parallel unit wind power converter. It includes three pairs of upper IGBT units and lower IGBT units located between the three-phase AC terminal and the DC positive and negative poles, and each of the upper IGBT units and the lower IGBT units is composed of two identical IGBTs connected in parallel . The present invention adopts parallel IBGT to form the upper tube IGBT unit and the lower tube IGBT unit, which can provide higher current density, not only have higher cost performance, but also can uniform heat distribution, prolong the service life of the element; improve its operation reliability; The design of the driving circuit makes the parallel IGBT use the same driver, and the driving circuit is completely symmetrical, which reduces the transmission delay difference between the driving circuits and achieves better dynamic current sharing.
Description
技术领域 technical field
本发明涉及风力发电设备部件，具体是一种双管并联单元风电变流器IBGT模块。 The invention relates to components of wind power generation equipment, in particular to an IBGT module of a wind power converter with a double-pipe parallel unit.
背景技术 Background technique
风力发电设备中的变流器是连接在发电机与电网之间的用来对风力发电产生的电能进行变换，以使其满足电力输送的要求并输出到电网的设备。IGBT模块为变流器整流及逆变的核心部件，传统的技术中，IGBT模块如附图1所示，三对上管IGBT单元和下管IBGT单元连接在A、B、C三相交流端和直流正极、负极之间，其上管和下管单元均是采用单个IGBT进行整流及逆变。这种方案对于电流密度、均匀散热等无法做到理想的状况，因此传统的风电变流器中IGBT的电流等级一般都较大，其不仅元件成本较高，并且局部发热量大，影响元件使用寿命。 The converter in wind power generation equipment is a device connected between the generator and the grid to convert the electric energy generated by wind power generation so that it can meet the requirements of power transmission and output to the grid. The IGBT module is the core component of the rectification and inverter of the converter. In the traditional technology, the IGBT module is shown in Figure 1. Three pairs of upper tube IGBT units and lower tube IBGT units are connected to the A, B, and C three-phase AC terminals. Between the DC positive pole and the negative pole, the upper tube and the lower tube unit use a single IGBT for rectification and inverter. This solution cannot achieve ideal conditions for current density, uniform heat dissipation, etc., so the current level of the IGBT in the traditional wind power converter is generally large, which not only has high component costs, but also has a large local heat generation, which affects the use of components. life.
发明内容 Contents of the invention
本发明所要解决的技术问题是，提供一种能够降低风电为流器的元器件成本、元件发热均匀、运行可靠的双管并联单元风电变流器IBGT模块。 The technical problem to be solved by the present invention is to provide an IBGT module of a wind power converter with double-pipe parallel units, which can reduce the cost of components of the wind power converter, uniformly heat the components, and operate reliably.
本发明的双管并联单元风电变流器IBGT模块包括有位于三相交流端和直流正负极之间的三对上管IBGT单元和下管IGBT单元，所述每一个上管IGBT单元和下管IGBT单元均由两个相同的IGBT并联而成。 The IBGT module of the double-tube parallel unit wind power converter of the present invention includes three pairs of upper tube IBGT units and lower tube IGBT units located between the three-phase AC terminal and the DC positive and negative poles, each of the upper tube IGBT units and the lower tube IGBT unit The tube IGBT unit is made up of two identical IGBTs connected in parallel.
所述并联的两个IGBT由同一个驱动电路驱动，每一个IGBT的驱动回路中的栅极电阻分为两部分，一部分是连接在栅极一侧的电阻Rg，另一部分是连接在发射极一侧的电阻Re，电阻Rg与电阻Re的阻值之比为2：1。 The two IGBTs connected in parallel are driven by the same drive circuit, and the gate resistor in the drive circuit of each IGBT is divided into two parts, one part is connected to the resistor Rg on one side of the gate, and the other part is connected to the emitter- The resistance Re on the side, the resistance ratio of the resistance Rg and the resistance Re is 2:1.
本发明采用并联IBGT构成上管IGBT单元和下管IGBT单元，可以提供更高的电流密度，不仅具有较高的性价比，并且可以均匀热分布，延长元件寿命；提高其运行可靠性；栅极的驱动回路的设计，使并联IGBT采用同一个驱动器，驱动回路完全对称，降低了驱动回路之间的传输延时差，实现了较好的动态均流；特别是将栅极电阻按照特定的比例分开设置，使得2/3的栅极电阻Rg和栅极与发射极之间电容的容差足够小，而剩余的1/3栅极电阻Re能够降低由于功率换流回路杂散电感不对称引起的动态电流不均衡，提高了模块的运行可靠性。 The present invention adopts parallel IBGT to form the upper tube IGBT unit and the lower tube IGBT unit, which can provide higher current density, not only have higher cost performance, but also can uniform heat distribution, prolong the service life of the element; improve its operation reliability; The design of the driving circuit makes the parallel IGBT use the same driver, the driving circuit is completely symmetrical, reduces the transmission delay difference between the driving circuits, and realizes better dynamic current sharing; especially separates the gate resistance according to a specific ratio Set so that the tolerance of 2/3 of the gate resistance Rg and the capacitance between the gate and the emitter is small enough, and the remaining 1/3 of the gate resistance Re can reduce the Dynamic current imbalance improves the operational reliability of the module.
附图说明 Description of drawings
图1是现有风电变流器IGBT模块的电路原理图； Fig. 1 is a circuit schematic diagram of an existing wind power converter IGBT module;
图2是本发明的电路原理图； Fig. 2 is a schematic circuit diagram of the present invention;
图3是一对并联IGBT的驱动回路示意图。 Fig. 3 is a schematic diagram of a driving circuit of a pair of parallel-connected IGBTs.
具体实施方式 Detailed ways
如图2所示，该双管并联单元风电变流器IBGT模块包括有位于三相交流端和直流正负极之间的三对上管IBGT单元和下管IGBT单元，所述每一个上管IGBT单元和下管IGBT单元均由两个相同的IGBT并联而成。 As shown in Figure 2, the IBGT module of the wind power converter with a double-tube parallel unit includes three pairs of upper-tube IBGT units and lower-tube IGBT units located between the three-phase AC terminal and the DC positive and negative poles. Both the IGBT unit and the down-side IGBT unit are composed of two identical IGBTs connected in parallel.
如图3所示，所述并联的两个IGBT由同一个驱动电路驱动，每一个IGBT的驱动回路中的栅极电阻分为两部分，一部分是连接在栅极一侧的电阻Rg，另一部分是连接在发射极一侧的电阻Re，电阻Rg与电阻Re的阻值之比为2：1。 As shown in Figure 3, the two IGBTs connected in parallel are driven by the same drive circuit, and the gate resistance in the drive circuit of each IGBT is divided into two parts, one part is the resistance Rg connected to one side of the gate, and the other part It is the resistor Re connected to the emitter side, and the resistance ratio of the resistor Rg to the resistor Re is 2:1.
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| CN2011103948905A CN102412737A (en) | 2011-12-02 | 2011-12-02 | Insulated gate bipolar transistor (IGBT) module formed by double-parallel transistor units for wind power converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905018A (en) * | 2012-12-25 | 2014-07-02 | 西安永电电气有限责任公司 | Dynamic current sharing circuit of IGBT module parallel unsymmetrical circuit |
| CN109510560A (en) * | 2018-12-19 | 2019-03-22 | 上海伊控动力系统有限公司 | A kind of power electronic control system of double IGBT single inverters of parallel current-sharing |
| CN109639121A (en) * | 2019-01-02 | 2019-04-16 | 深圳市禾望电气股份有限公司 | IGBT discrete device parallel connection dynamic flow equalizing circuit structure and electric machine controller |
| CN112039347A (en) * | 2020-07-15 | 2020-12-04 | 上海交通大学 | Modularized intelligent combined wind power converter and control method thereof |
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| US6323717B1 (en) * | 1998-05-18 | 2001-11-27 | Kabushiki Kaisha Toshiba | Semiconductor device, drive method, and drive apparatus |
| CN101877541A (en) * | 2009-04-29 | 2010-11-03 | 深圳市英威腾电气股份有限公司 | High-power four-quadrant frequency converter and power unit |
| CN202406038U (en) * | 2011-12-02 | 2012-08-29 | 江苏大全凯帆电器股份有限公司 | IGBT (insulated gate bipolar transistor) module with double-transistor parallel connection unit of wind power converter |
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- 2011-12-02 CN CN2011103948905A patent/CN102412737A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6323717B1 (en) * | 1998-05-18 | 2001-11-27 | Kabushiki Kaisha Toshiba | Semiconductor device, drive method, and drive apparatus |
| CN101877541A (en) * | 2009-04-29 | 2010-11-03 | 深圳市英威腾电气股份有限公司 | High-power four-quadrant frequency converter and power unit |
| CN202406038U (en) * | 2011-12-02 | 2012-08-29 | 江苏大全凯帆电器股份有限公司 | IGBT (insulated gate bipolar transistor) module with double-transistor parallel connection unit of wind power converter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905018A (en) * | 2012-12-25 | 2014-07-02 | 西安永电电气有限责任公司 | Dynamic current sharing circuit of IGBT module parallel unsymmetrical circuit |
| CN109510560A (en) * | 2018-12-19 | 2019-03-22 | 上海伊控动力系统有限公司 | A kind of power electronic control system of double IGBT single inverters of parallel current-sharing |
| CN109510560B (en) * | 2018-12-19 | 2024-10-22 | 浙江伊控动力系统有限公司 | Power electronic control system of parallel current sharing double-IGBT single inverter |
| CN109639121A (en) * | 2019-01-02 | 2019-04-16 | 深圳市禾望电气股份有限公司 | IGBT discrete device parallel connection dynamic flow equalizing circuit structure and electric machine controller |
| CN112039347A (en) * | 2020-07-15 | 2020-12-04 | 上海交通大学 | Modularized intelligent combined wind power converter and control method thereof |
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Application publication date: 20120411 |