CN110855158A - Converter module and converter - Google Patents
Converter module and converter Download PDFInfo
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- CN110855158A CN110855158A CN201810950746.7A CN201810950746A CN110855158A CN 110855158 A CN110855158 A CN 110855158A CN 201810950746 A CN201810950746 A CN 201810950746A CN 110855158 A CN110855158 A CN 110855158A
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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
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
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- Thermal Sciences (AREA)
- Inverter Devices (AREA)
Abstract
The invention provides a converter module and a converter, which comprise a regeneration controllable circuit, a first DC/DC conversion circuit, a second DC/DC conversion circuit, a first chopper circuit, a second chopper circuit, a first three-phase inverter circuit and a second three-phase inverter circuit which are sequentially connected in parallel. The first three-phase inverter circuit is used for supplying power to the first traction motor, the second three-phase inverter circuit is used for supplying power to the second traction motor, and the first chopper circuit and the second chopper circuit are both used for consuming the energy of the converter module when the intermediate direct-current voltage of the converter module is too high so as to reduce the voltage and enable the converter module to meet the power supply requirements of the two tractors simultaneously. The converter module and the converter provided by the invention can meet the power supply requirements of two traction motors at the same time.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a converter module and a converter.
Background
With the development of the alternating current transmission technology, the IGBT converter module is developing towards modularization and serialization as an important component of the traction converter, and the application of the IGBT converter module is increasingly widespread. Related attempts are made by enterprises in China, but the problems of immature technology and the like cause a large gap compared with similar products abroad. Therefore, the technical problem of the IGBT converter module becomes one of the bottlenecks which currently restrict the development of the motor train unit in China. Due to the limitations of the power semiconductor technology level and the imperfect IGBT series and parallel connection technology, high voltage IGBT elements must be used to increase the power level of the converter module. The existing IGBT converter module is provided with a supporting capacitor, so that each converter module is very heavy and inconvenient to assemble, disassemble and maintain.
In addition, limited by the technical level of power semiconductors, a series of previously developed IGBT traction converter modules mainly adopt 3300V or 1700V IGBT elements, the corresponding dc loop operating voltages are 1500V and 750V, and the application range of the IGBT traction converter modules is mainly concentrated in the urban rail fields of motor train units, subways, magnetic levitation and the like. The operating voltage of the dc loop of the railway locomotive is usually 2600V or higher, and a GTO (Gate Turn Off Thyristor) element is mainly adopted, and a plurality of IGBT elements may also be adopted to be connected in series or a three-point circuit, which may increase the complexity of the converter and reduce the reliability of the system.
Because the use and development time are not long, there are still many imperfect places for IGBT converter module, and with regard to the IGBT converter module of medium and high power, the current domestic commonly used situation is:
(1) the modularization and the generalization degree are not high. Traction converters for ac drives are generally classified into four-quadrant rectifiers and inverters. Without consideration of modularization and generalization, the product is designed according to the size provided by a client. Because the circuit structures and the controls of the two are different, the two can not be interchanged generally or the interchangeability is poor;
(2) the power level increases with difficulty. Due to the limitations of the power semiconductor technology level, the series of traction converter modules developed previously mainly use 3300V or 1700V components, corresponding to 1500V and 750V voltage levels of the intermediate dc circuit. Therefore, if the power level is to be improved, the elements must be used in series and parallel, which often causes the circuit and structure of the converter to be greatly changed;
(3) the installation and maintenance are inconvenient. Many converters lack modularization and convenience due to structural design, and great inconvenience is brought to installation and maintenance. Often, to repair a component or element, many other components or elements need to be disassembled, which, in addition to the high workload, can have a serious impact on the reliability and overall life of the system. Because the reliability of the corresponding parts is reduced for each disassembly, if the plugging times of the general connector are specified, the connector is not reliable after the plugging times exceed the specified number;
(4) the electrical performance is affected by the unreasonable layout of the components. Because the modularization and integration degree of a common converter are not high or elements are not reasonably arranged, if a low-inductance busbar or related components are not arranged too far, the wiring inductance or the line inductance is too large, and the like, the electrical performance of the whole converter is influenced, and the potential of the converter cannot be fully exerted;
(5) the heat dissipation is complicated or not good. At present, a large number of heat dissipation modes used by a high-power converter are mainly water-cooled radiators, and although the radiators have large heat dissipation capacity and good effect, the whole system has a complex manufacturing process, is expensive and is easy to leak water. The other heat dissipation mode is a walking air cooling mode of the heat pipe radiator, and the principle is that wind generated when a vehicle walks is used for cooling or naturally cooling the radiator. The mode has poor heat dissipation effect, is greatly influenced by the environment due to being exposed below the vehicle body, and needs to be maintained regularly. And compared with other heat dissipation modes, the heat dissipation mode has the advantages of relatively simple design, low process difficulty and low cost. Although the mode is not as good as water cooling, the manufacturing process is relatively simpler and lower in cost, and a special water circulation and cooling system is not required to be designed for the manufacturing process; compared with a travelling air-cooled heat pipe radiator, the radiator has better effect, better reliability and maintainability and small influence by the external environment.
(6) The converter module function is single, only needs multiple different modules to realize the service function.
Disclosure of Invention
In view of this, the invention provides a converter module and a converter, which can meet the power supply requirements of two traction motors at the same time and have stable performance.
The invention provides a converter module, which comprises a regeneration controllable circuit, a first DC/DC conversion circuit, a second DC/DC conversion circuit, a first chopper circuit, a second chopper circuit, a first three-phase inverter circuit and a second three-phase inverter circuit, wherein the regeneration controllable circuit is connected with the first DC/DC conversion circuit; a first interface of the regeneration controllable circuit is connected with the anode of a power grid, a second interface of the regeneration controllable circuit is connected with the cathode of the power grid, and a third interface of the regeneration controllable circuit is connected with the anode interface of a power supply; a first interface of the first DC/DC conversion circuit is connected to a third interface of the regeneration controllable circuit, and a second interface of the first DC/DC conversion circuit is connected to a second interface of the regeneration controllable circuit; a first interface of the second DC/DC conversion circuit is connected to a first interface of the first DC/DC conversion circuit, and a second interface of the second DC/DC conversion circuit is connected to a second interface of the first DC/DC conversion circuit; the first interface of the first chopper circuit and the first interface of the second chopper circuit are both connected with the first interface of the second DC/DC conversion circuit, and the second interface of the first chopper circuit and the second interface of the second chopper circuit are both connected with the second interface of the second DC/DC conversion circuit; a first interface of the first three-phase inverter circuit is connected with a first interface of the first chopper circuit, and a second interface of the first three-phase inverter circuit is connected with a second interface of the first chopper circuit; and a first interface of the second three-phase inverter circuit is connected with a first interface of the second chopper circuit, and a second interface of the second three-phase inverter circuit is connected with a second interface of the second chopper circuit.
Specifically, the converter module further includes a dc support capacitor, a first end of the dc support capacitor is connected to the third interface of the regenerative controllable circuit, and a second end of the dc support capacitor is connected to the second interface of the regenerative controllable circuit.
Specifically, the converter module comprises twelve IGBT devices, wherein the first chopper circuit comprises a first IGBT device of the twelve IGBT devices, the first three-phase inverter circuit comprises a second IGBT device, a third IGBT device and a fourth IGBT device of the twelve IGBT devices, the second chopper circuit comprises a fifth IGBT device of the twelve IGBT devices, the second three-phase inverter circuit comprises a sixth IGBT device, a seventh IGBT device and an eighth IGBT device of the twelve IGBT devices, the regeneration controllable circuit comprises a ninth IGBT device and a tenth IGBT device of the twelve IGBT devices, the first DC/DC conversion circuit comprises an eleventh IGBT device of the twelve IGBT devices, and the second DC/DC conversion circuit comprises a twelfth IGBT device of the twelve IGBT devices.
Specifically, the converter module further comprises a first current sensor, a second current sensor, a third current sensor, a fourth current sensor, a fifth current sensor, a sixth current sensor, a seventh current sensor and an eighth current sensor; the first end of the first current sensor is connected with the third interface of the first three-phase inverter circuit, and the second end of the first current sensor is connected with the first phase output end of the first three-phase inverter circuit; the first end of the second current sensor is connected with the fourth interface of the first three-phase inverter circuit, and the second end of the second current sensor is connected with the second phase output end of the first three-phase inverter circuit; a fifth interface of the first three-phase inverter circuit is connected with a third phase output end of the first three-phase inverter circuit; a first end of the third current sensor is connected with a third interface of the first chopper circuit, and a second end of the third current sensor is connected with an external interface of the first chopper circuit; a first end of the fourth current sensor is connected with a third interface of the second three-phase inverter circuit, and a second end of the fourth current sensor is connected with a first-phase output end of the second three-phase inverter circuit; a first end of the fifth current sensor is connected with a fourth interface of the second three-phase inverter circuit, and a second end of the fifth current sensor is connected with a second-phase output end of the second three-phase inverter circuit; a fifth interface of the second three-phase inverter circuit is connected with a third phase output end of the second three-phase inverter circuit; a first end of the sixth current sensor is connected with a third interface of the second chopper circuit, and a second end of the sixth current sensor is connected with an external interface of the second chopper circuit; a first end of the seventh current sensor is connected with the third interface of the first DC/DC conversion circuit, and a second end of the seventh current sensor is connected with the external interface of the first DC/DC conversion circuit; a first end of the eighth current sensor is connected with the third interface of the second DC/DC conversion circuit, and a second end of the eighth current sensor is connected with the external interface of the second DC/DC conversion circuit.
Specifically, the converter module further comprises a radiator, a temperature relay, a detection board and a lower layer alternating current busbar, wherein a plurality of IGBT device arrays are installed on the end face of the radiator, the temperature relay is fixedly installed on the end face of the radiator, and the detection board and the lower layer alternating current busbar are installed on the IGBT devices.
Specifically, the converter module further comprises a low-inductance busbar and an upper-layer alternating-current busbar, wherein the low-inductance busbar and the upper-layer alternating-current busbar are both mounted on the IGBT device, the low-inductance busbar is located above the IGBT device, and the upper-layer alternating-current busbar is located above the low-inductance busbar.
Specifically, the converter module further comprises a supporting column and a capacitor mounting seat, the supporting column is fixedly mounted on the end face of the radiator, the capacitor mounting seat is fixedly mounted on the supporting column, the direct-current supporting capacitor is fixedly mounted on the capacitor mounting seat, and the direct-current supporting capacitor is electrically connected with the low-inductance busbar.
Specifically, the converter module further comprises a direct-current insulation wire holder, a patch panel and an alternating-current insulation wire holder, wherein the direct-current insulation wire holder is fixedly mounted on the capacitor mounting base, and a direct-current input end of the low-inductance busbar is lapped on the direct-current insulation wire holder to serve as a direct-current input interface of the converter module; the adapter plate is fixedly arranged on the support column, the alternating current insulation wire holder is fixedly arranged on the adapter plate, and alternating current output ends of the lower layer alternating current busbar and the upper layer alternating current busbar are lapped on the alternating current insulation wire holder to be used as an alternating current output interface of the converter module; and current sensors are respectively arranged at the output ends of the lower layer alternating current busbar and the plurality of alternating current busbars in the upper layer alternating current busbar in a penetrating manner.
Specifically, the converter module still includes drive mounting panel, drive unit, control mounting panel, control power supply and transmission control unit, the both ends fixed mounting of drive mounting panel is in on the support column, just the drive mounting panel is located on the side of converter module, drive unit fixed mounting be in on the terminal surface of drive mounting panel, control mounting panel fixed mounting be in on the support column, just the control mounting panel is located the top of female arranging is exchanged on the upper strata, control power supply with transmission control unit fixed mounting be in on the control mounting panel.
The invention also provides a converter, which comprises the converter module.
Therefore, the converter module and the converter provided by the embodiment of the invention can meet the power supply requirements of two traction motors at the same time by arranging two sets of three-phase inverter circuits and two sets of chopper circuits, can realize bidirectional chopping by two DC/DC conversion circuits, can supply power to an external super capacitor by direct-current buck chopping of a power grid, can supply voltage boost chopping of the external super capacitor to the converter module, and can preferentially feed electric energy back to the power grid by a regenerative controllable loop when the external super capacitor cannot absorb braking energy by connecting a regenerative controllable loop in parallel in the converter module, thereby improving the performance stability of the converter module.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a block diagram of a converter module according to an embodiment of the present invention;
fig. 2 is a schematic circuit topology diagram of a converter module according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a current transformer module according to an embodiment of the present invention;
fig. 4 is a schematic front view of a current transformer module according to an embodiment of the present invention;
fig. 5 is a schematic top view of a current transformer module according to an embodiment of the present invention;
fig. 6 is a left side view structural diagram of a converter module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a right-view structure of a converter module according to an embodiment of the present invention;
fig. 8 to 12 are schematic exploded structural views of a current transformer module according to an embodiment of the present invention.
Detailed Description
To further clarify the technical solutions and effects of the present invention adopted to achieve the intended purpose, the following detailed description is given of specific embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Fig. 1 is a block diagram of a converter module 100 according to an embodiment of the present invention. As shown in fig. 1, the converter module 100 provided in this embodiment includes a regeneration controllable circuit 110, a first DC/DC conversion circuit 120, a second DC/DC conversion circuit 130, a first chopper circuit 140, a second chopper circuit 150, a first three-phase inverter circuit 160, and a second three-phase inverter circuit 170. Specifically, in one embodiment, the regeneration controllable circuit 110, the first DC/DC conversion circuit 120, the second DC/DC conversion circuit 130, the first chopper circuit 140, the second chopper circuit 150, the first three-phase inverter circuit 160, and the second three-phase inverter circuit 170 are connected in parallel in this order. The first three-phase inverter circuit 160 is configured to supply power to a first traction motor (not shown), the second three-phase inverter circuit 170 is configured to supply power to a second traction motor (not shown), and the first chopper circuit 140 and the second chopper circuit 150 are both configured to consume energy of the converter module 100 when the intermediate dc voltage of the converter module 100 is too high, so as to reduce the voltage, and thus the converter module 100 can meet the power supply requirements of two traction machines at the same time.
Specifically, in an embodiment, the first DC/DC conversion circuit 120 and the second DC/DC conversion circuit 130 are further connected to a super capacitor (not shown), and the two DC/DC conversion circuits 120 and 130 are configured to implement bidirectional chopping, so as to buck-chop the grid DC to supply power to the super capacitor, or boost-chop the voltage of the super capacitor to the intermediate DC loop. In particular, in an embodiment, the super capacitor is a large capacity capacitor, for example, the capacitance value of the super capacitor is typically several thousand farads. Specifically, the super capacitor can realize rapid charging and discharging, and the power grid supplies power to the converter module 100 and charges the super capacitor when the vehicle has the power grid. When the vehicle is operating in the network-less segment, the super capacitor discharges to power the inverter module 100. Specifically, in an embodiment, the regeneration controllable circuit 110 is configured to preferentially feed back the electric energy to the power grid through the regeneration controllable bridge arm of the regeneration controllable circuit 110 when the super capacitor cannot absorb the braking energy.
Fig. 2 is a schematic circuit topology diagram of a converter module 100 according to an embodiment of the present invention. As shown in fig. 1 and fig. 2, in the present embodiment, specifically, the first interface of the regeneration controllable circuit 110 is connected to the positive pole P0 of the power grid, the second interface of the regeneration controllable circuit 110 is connected to the negative pole N of the power grid, and the third interface of the regeneration controllable circuit 110 is connected to the positive pole interface P of the power supply. The first interface of the first DC/DC conversion circuit 120 is connected to the third interface of the regeneration controllable circuit 110, and the second interface of the first DC/DC conversion circuit 120 is connected to the second interface of the regeneration controllable circuit 110. A first interface of the second DC/DC conversion circuit 130 is connected to a first interface of the first DC/DC conversion circuit 120, and a second interface of the second DC/DC conversion circuit 130 is connected to a second interface of the first DC/DC conversion circuit 120. A first interface of the first chopper circuit 140 and a first interface of the second chopper circuit 150 are both connected to a first interface of the second DC/DC conversion circuit 130, and a second interface of the first chopper circuit 140 and a second interface of the second chopper circuit 150 are both connected to a second interface of the second DC/DC conversion circuit 130. A first interface of the first three-phase inverter circuit 160 is connected to a first interface of the first chopper circuit 140, and a second interface of the first three-phase inverter circuit 160 is connected to a second interface of the first chopper circuit 140. A first interface of the second three-phase inverter circuit 170 is connected to a first interface of the second chopper circuit 150, and a second interface of the second three-phase inverter circuit 170 is connected to a second interface of the second chopper circuit 150.
Specifically, in an embodiment, the converter module 100 further includes a dc support capacitor Cd, a first end of the dc support capacitor Cd is connected to the third interface of the regenerative controllable circuit 110, and a second end of the dc support capacitor Cd is connected to the second interface of the regenerative controllable circuit 110.
Specifically, in an embodiment, the converter module 100 may include, but is not limited to, a plurality of (Insulated gate bipolar Transistor) devices V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, and V12, wherein the number of the plurality of IGBT devices V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, and V12 is twelve, for example, in other embodiments, the number of IGBT devices may be determined according to functions that the converter module 100 needs to implement, for example, when part of the functions of the converter module 100 is added or deleted, the number of the IGBT devices is correspondingly added or deleted. Specifically, in the present embodiment, the first chopper circuit 140 includes a first IGBT device V1 of twelve IGBT devices, the first three-phase inverter circuit 160 includes a second IGBT device V2, a third IGBT device V3, and a fourth IGBT device V4 of the twelve IGBT devices, the second chopper circuit 150 includes a fifth IGBT device V5 of the twelve IGBT devices, the second three-phase inverter circuit 170 includes a sixth IGBT device V6, a seventh IGBT device V7, and an eighth IGBT device V8 of the twelve IGBT devices, the regenerative controllable circuit 110 includes a ninth IGBT device V9 and a tenth IGBT device V10 of the twelve IGBT devices, the first DC/DC conversion circuit 120 includes an eleventh IGBT device V11 of the twelve IGBT devices, and the second DC/DC conversion circuit 130 includes a twelfth IGBT device V12 of the twelve IGBT devices.
Specifically, in an embodiment, the converter module 100 further includes a plurality of current sensors LH1, LH2, LH3, LH4, LH5, LH6, LH7, LH8, and specifically, the plurality of current sensors LH1, LH2, LH3, LH4, LH5, LH6, LH7, and LH8 may be, but are not limited to, eight in number, wherein the eight current sensors LH1, LH2, LH3, LH4, LH5, LH6, LH7, and LH8 are the first current sensor LH1, the second current sensor LH2, the third current sensor LH3, the fourth current sensor LH4, the fifth current sensor LH5, the sixth current sensor LH6, the seventh current sensor LH7, and the eighth current sensor LH 8. Specifically, in one embodiment, a first terminal of the first current sensor LH1 is connected to the third interface of the first three-phase inverter circuit 160, and a second terminal of the first current sensor LH1 is connected to the first phase output terminal U1 of the first three-phase inverter circuit 160. A first terminal of the second current sensor LH2 is connected to the fourth interface of the first three-phase inverter circuit 160, and a second terminal of the second current sensor LH2 is connected to the second phase output terminal V1 of the first three-phase inverter circuit 160. The fifth interface of the first three-phase inverter circuit 160 is connected to the third phase output terminal W1 of the first three-phase inverter circuit 160. A first terminal of the third current sensor LH3 is connected to the third interface of the first chopper circuit 140, and a second terminal of the third current sensor LH3 is connected to the external interface CH1 of the first chopper circuit 140. A first terminal of the fourth current sensor LH4 is connected to the third interface of the second three-phase inverter circuit 170, and a second terminal of the fourth current sensor LH4 is connected to the first-phase output terminal U2 of the second three-phase inverter circuit 170. A first terminal of the fifth current sensor LH5 is connected to the fourth interface of the second three-phase inverter circuit 170, and a second terminal of the fifth current sensor LH5 is connected to the second phase output terminal V2 of the second three-phase inverter circuit 170. A fifth interface of the second three-phase inverter circuit 170 is connected to a third phase output end W2 of the second three-phase inverter circuit 170; a first end of the sixth current sensor LH6 is connected to the third interface of the second chopper circuit 150, and a second end of the sixth current sensor LH6 is connected to the external interface CH2 of the second chopper circuit 150. A first terminal of the seventh current sensor LH7 is connected to the third interface of the first DC/DC conversion circuit 120, and a second terminal of the seventh current sensor LH7 is connected to the external interface a1 of the first DC/DC conversion circuit 120. A first terminal of the eighth current sensor LH8 is connected to the third interface of the second DC/DC conversion circuit 130, and a second terminal of the eighth current sensor LH8 is connected to the external interface a2 of the second DC/DC conversion circuit 130.
Specifically, in an embodiment, the first interface of the tenth IGBT device V10 is electrically connected to the first interface of the ninth IGBT device V9, and the first interface of the ninth IGBT device V9 is connected to the positive pole P0 of the grid. And a second interface of the ninth IGBT device V9 and a second interface of the tenth IGBT device V10 are both connected with the negative pole N of the power grid. And a third interface of the ninth IGBT device V9 and a third interface of the tenth IGBT device V10 are both connected to the positive power interface P to provide power for other auxiliary devices, where the other auxiliary devices may be lighting devices, fans, water pumps, and other auxiliary devices. Specifically, a first end of the dc support capacitor Cd is connected to the third interface of the tenth IGBT device V10, and a second end of the dc support capacitor Cd is connected to the second interface of the tenth IGBT device V10. Specifically, a first interface of the eleventh IGBT device V11 is connected to the first end of the DC support capacitor Cd, a second interface of the eleventh IGBT device V11 is connected to the second end of the DC support capacitor Cd, a third interface of the eleventh IGBT device V11 is connected to the first end of the seventh current sensor LH7, and a second end of the seventh current sensor LH7 is connected to the external interface a1 of the first DC/DC converter circuit 120 to be electrically connected to the first super capacitor. Specifically, a first interface of the twelfth IGBT device V12 is connected to a first interface of the eleventh IGBT device V11, a second interface of the twelfth IGBT device V12 is connected to a second interface of the eleventh IGBT device V11, a third interface of the twelfth IGBT device V12 is connected to a first end of the eighth current sensor LH8, and a second end of the eighth current sensor LH8 is connected to the external interface a2 of the second DC/DC converter circuit 130 to be electrically connected to the second super capacitor. Specifically, a first interface of the first IGBT device V1 is connected to a first interface of the twelfth IGBT device V12, a second interface of the first IGBT device V1 is connected to a second interface of the twelfth IGBT device V12, a third interface of the first IGBT device V1 is connected to a first end of the third current sensor LH3, and a second end of the third current sensor LH3 is connected to the external interface CH1 of the first chopper circuit 140 to externally connect the first chopper resistor. Specifically, the first interface of the second IGBT device V2, the first interface of the third IGBT device V3, and the first interface of the fourth IGBT device V4 are all connected to the first interface of the first IGBT device V1, the second interface of the second IGBT device V2, the second interface of the third IGBT device V3, and the second interface of the fourth IGBT device V4 are all connected to the second interface of the first IGBT device V1, the third interface of the second IGBT device V2 is connected to the first end of the first current sensor LH1, the third interface of the third IGBT device V3 is connected to the first end of the second current sensor LH2, the second end of the first current sensor LH1 is connected to the first phase output terminal of the first three-phase inverter circuit 160, the second end of the second current sensor LH2 is connected to the second phase output terminal V1 of the first three-phase inverter circuit 160, and the third interface of the fourth IGBT device V4 is connected to the third phase output terminal W1 of the first three-phase inverter circuit 160, so as to output the alternating current generated by the first three-phase inverter circuit 160 to the first traction motor, thereby realizing power supply to the first traction motor. Specifically, a first interface of the fifth IGBT device V5 is connected to a first interface of the twelfth IGBT device V12, a second interface of the fifth IGBT device V5 is connected to a second interface of the twelfth IGBT device V12, a third interface of the fifth IGBT device V5 is connected to a first end of the sixth current sensor LH6, and a second end of the sixth current sensor LH6 is connected to the external interface CH2 of the second chopper circuit 150, so as to be externally connected to the second chopper resistor. Specifically, the first interface of the sixth IGBT device V6, the first interface of the seventh IGBT device V7, and the first interface of the eighth IGBT device V8 are all connected to the first interface of the fifth IGBT device V5, the second interface of the sixth IGBT device V6, the second interface of the seventh IGBT device V7, and the second interface of the eighth IGBT device V8 are all connected to the second interface of the fifth IGBT device V5, the third interface of the sixth IGBT device V6 is connected to the first end of the fourth current sensor LH4, the third interface of the seventh IGBT device V7 is connected to the first end of the fifth current sensor LH5, the second end of the fourth current sensor LH4 is connected to the first phase output terminal U2 of the second three-phase inverter circuit 170, the second end of the fifth current sensor LH5 is connected to the second phase output terminal V2 of the second three-phase inverter circuit 170, and the third interface of the eighth IGBT device V8 is connected to the third phase output terminal W2 of the second three-phase inverter circuit 170, so as to output the alternating current generated by the second three-phase inverter circuit 170 to the second traction motor, thereby realizing power supply to the second traction motor. Specifically, when the intermediate dc voltage of the converter module 100 is too high, the chopper circuit is turned on to consume energy through the chopper resistor, thereby reducing the voltage, and further enabling the converter module 100 to satisfy the power supply requirements of the two traction motors at the same time.
Fig. 3 is a schematic perspective structure diagram of a current transformer module 100 according to an embodiment of the present invention, fig. 4 is a schematic front view structure diagram of the current transformer module 100 according to the embodiment of the present invention, fig. 5 is a schematic top view structure diagram of the current transformer module 100 according to the embodiment of the present invention, fig. 6 is a schematic left view structure diagram of the current transformer module 100 according to the embodiment of the present invention, fig. 7 is a schematic right view structure diagram of the current transformer module 100 according to the embodiment of the present invention, and fig. 8 to fig. 12 are schematic exploded structure diagrams of the current transformer module 100 according to the embodiment of the present invention. As shown in fig. 1 to 12, in the present embodiment, the converter module 100 further includes a heat sink 210, a temperature relay 212, a detection board 217, and a lower ac busbar 213. Specifically, a plurality of IGBT devices 211 are arrayed on the end face of the heat sink 210, the temperature relay 212 is fixedly mounted on the end face of the heat sink 210, and the detection board 217 and the lower ac busbar 213 are mounted on the IGBT devices 211. Specifically, in one embodiment, the number of the plurality of IGBT devices 211 is twelve, and twelve IGBT devices 211 are arranged in an array on one end surface of the heat sink 210, for example, twelve IGBT devices 211 are arranged in two rows. Specifically, the number of the temperature relays 212 is two, and two temperature relays 212 are arranged on one end surface of the heat sink 210 on which the IGBT devices 211 are arranged, and both temperature relays 212 are arranged between two rows of the IGBT devices 211. Specifically, the lower ac busbar 213 includes eight ac busbars, and specifically, in an embodiment, four ac busbars in the eight ac busbars are respectively arranged at one end of the two rows of IGBT devices 211 in an array, and the four ac busbars are respectively connected to the four IGBT devices 211 at the first end of the two rows of IGBT devices 211 in a one-to-one correspondence manner. The other four alternating current busbars of the eight alternating current busbars are respectively arranged at the other ends of the two rows of IGBT devices 211 in an array mode, and the four alternating current busbars are respectively connected with the four IGBT devices 211 at the second ends of the two rows of IGBT devices 211 in a one-to-one correspondence mode. Specifically, the heat sink 210 is an air-cooled heat sink 210, such as the air-cooled heat sink 210.
Specifically, in the present embodiment, the converter module 100 is based on a heat sink 210, and twelve IGBT devices 211 and two temperature relays 212 are mounted on one end surface of the heat sink 210 by screw fastening. Specifically, when the IGBT device 211 and the temperature relay 212 are mounted, the contact portions of the IGBT device 211 and the temperature relay 212 with one end surface of the heat sink 210 are coated with heat conductive silicone grease, respectively, to reduce contact thermal resistance, which is beneficial to heat transfer. The detection board 217 is fixedly installed on the IGBT device 211 through screws, and the lower alternating current busbar 213 is fixedly installed on the middle part of the IGBT device 211 through screws. Specifically, the number of detection plates 217 is twelve, and one detection plate 217 is fixedly mounted on the outer side portion of each IGBT device 211, which is away from the row-to-row IGBT device 211.
Specifically, in an embodiment, the converter module 100 further includes a low-inductance bus bar 215 and an upper-layer ac bus bar 214. Specifically, the low-inductance busbar 215 and the upper-layer alternating-current busbar 214 are both installed on the IGBT device 211, the low-inductance busbar 215 is located above the IGBT device 211, and the upper-layer alternating-current busbar 214 is located above the low-inductance busbar 215. Specifically, the low-inductance bus bar 215 is disposed above the IGBT devices 211, and a through hole (not shown) is opened at a corresponding position of each IGBT device 211. The upper ac busbar 214 includes four ac busbars, specifically, the four ac busbars are arranged side by side above the first ends of the two rows of IGBT devices 211, and the low-inductance busbar 215 is located between the upper ac busbar 214 and the lower ac busbar 213. One end of each of the four ac busbars 214 in the upper layer is correspondingly connected to the four IGBT devices 211 in the middle of the two rows of IGBT devices 211 one to one.
Specifically, in the present embodiment, the low-inductance busbar 215 is mounted on the two rows of IGBT devices 211 by screw fastening. Specifically, the low-inductance bus bar 215 is located above the lower layer ac bus bar 213. The upper layer alternating current busbar 214 is fixedly installed on the four IGBT devices 211 in the middle of the two rows of IGBT devices 211 through screws, and the upper layer alternating current busbar 214 is located above the low-inductance busbar 215.
Specifically, in one embodiment, the converter module 100 further includes a support pillar 220 and a capacitor mounting seat 221. Specifically, the supporting column 220 is fixedly installed on the end surface of the heat sink 210, the capacitor installation seat 221 is fixedly installed on the supporting column 220, the dc supporting capacitor 222 is fixedly installed on the capacitor installation seat 221, and the dc supporting capacitor 222 is electrically connected to the low-inductance busbar 215. Specifically, in an embodiment, the number of the supporting columns 220 may be four, four supporting columns 220 are respectively arranged at four corners on one end face of the heat sink 210, and four supporting columns 220 are respectively arranged two by two symmetrically, for example, four supporting columns 220 are arranged at four top corners of a rectangle. The number of the capacitor mounts 221 is four, and one capacitor mount 221 is fixedly mounted on each support column 220. Specifically, four corners of the dc support are respectively fixed on the capacitor mounting seat 221, and the dc support capacitor 222 is located above the upper ac busbar 214.
Specifically, in the present embodiment, the supporting posts 220 are mounted on the component heat sink 210 by screw fastening, and are used for supporting and mounting the upper components of the converter module 100. Specifically, the capacitor mounting seat 221 is mounted on the component support column 220 by screw fastening, and the dc support capacitor 222 is mounted on the component capacitor mounting seat 221 by screw fastening and connected to the low-inductance busbar 215 by a screw connection member. Specifically, a first end of the dc support capacitor 222 is electrically connected to the outwardly bent extension of the first end of the low-inductance busbar 215 through four screw connectors, respectively.
Specifically, in one embodiment, the converter module 100 further includes a dc isolation terminal block 223, a patch panel 225, and an ac isolation terminal block 224. Specifically, the dc insulation wire holder 223 is fixedly installed on the capacitor installation seat 221, and the dc input end of the low-inductance busbar 215 is overlapped on the dc insulation wire holder 223 to serve as the dc input interface of the converter module 100. The adapter plate 225 is fixedly mounted on the support column 220, the ac insulation wire holder 224 is fixedly mounted on the adapter plate 225, and the ac output ends of the lower ac busbar 213 and the upper ac busbar 214 are lapped on the ac insulation wire holder 224 to serve as an ac output interface of the converter module 100. The output ends of the alternating current busbars in the lower alternating current busbar 213 and the upper alternating current busbar 214 are respectively provided with a current sensor 216 in a penetrating way. Specifically, two ends of the dc insulation wire holder 223 are respectively and fixedly mounted on the top of the corresponding capacitor mounting seat 221, the low-inductance busbar 215 is further bent outwards at the bent portion to form two dc output ends, and the dc output end of the low-inductance busbar 215 is fixedly mounted on the dc insulation wire holder 223. Specifically, the number of the interposer 225 is four, two interposer 225 of the four interposer 225 are fixedly mounted on two support pillars 220 near the first end of the two rows of IGBT devices 211, and the other two interposer 225 of the four interposer 225 are fixedly mounted on two support pillars 220 near the second end of the two rows of IGBT devices 211. Specifically, the number of the ac insulation wire holders 224 is three, wherein two ac insulation wire holders 224 have the same structure, two ends of each ac insulation wire holder 224 of the two ac insulation wire holders 224 are respectively fixed on the corresponding adaptor plate 225, and two ends of another ac insulation wire holder 224 of the three ac insulation wire holders 224 are respectively fixed on the corresponding capacitor mounting holder 221. Each alternating-current insulated wire holder 224 in the three alternating-current insulated wire holders 224 is respectively lapped with the alternating-current output ends of the corresponding four alternating-current busbars. Specifically, in one embodiment, taking fig. 5 and 6 as an example for explanation, the first, second and fourth ac busbars from left to right of the lower ac busbar 213 in fig. 5 respectively pass through the corresponding current sensor 216, the first, third and fourth ac busbars from left to right of the lower ac busbar 213 in fig. 6 respectively pass through the corresponding current sensor 216, the first and second ac busbars from left to right of the upper ac busbar 214 in fig. 6 respectively pass through the corresponding current sensor 216, and specifically, the current sensor 216 is used for detecting an ac output current.
Specifically, in the present embodiment, the dc insulation wire holder 223 is mounted on the capacitor mounting seat 221 by screw fastening, and the dc input end of the low-inductance busbar 215 is overlapped on the dc insulation wire holder 223 to serve as the dc input interface of the converter module 100. The adapter plate 225 is fastened and installed on the support column 220 through screws, the ac insulation wire holder 224 is fastened and installed on the adapter plate 225 through screws, and the ac output ends of the lower ac busbar 213 and the upper ac busbar 214 are lapped on the ac insulation wire holder 224 to serve as an ac output interface of the converter module 100. The current sensor 216 is mounted on the ac insulation wire holder 224 by screw fastening, and a part of the ac busbar in the lower ac busbar 213 and the upper ac busbar 214 passes through the current sensor 216 to detect the ac output current.
Specifically, in one embodiment, the converter module 100 further includes a driving mounting plate 230, a driving unit 231, a control mounting plate 240, a control power source 241 and a transmission control unit 242. The two ends of the driving mounting plate 230 are fixedly mounted on the supporting column 220, the driving mounting plate 230 is located on the side surface of the converter module 100, the driving unit 231 is fixedly mounted on the end surface of the driving mounting plate 230, the control mounting plate 240 is fixedly mounted on the supporting column 220, the control mounting plate 240 is located above the upper-layer alternating current busbar 214, and the control power source 241 and the transmission control unit 242 are fixedly mounted on the control mounting plate 240. Specifically, the number of the driving mounting plates 230 is two, and the two driving mounting plates 230 are symmetrically mounted on both sides of the two rows of IGBT devices 211, respectively. Specifically, both ends of each driving mounting plate 230 are respectively fixed to the corresponding supporting columns 220.
Specifically, in one embodiment, the number of drive units 231 is twelve, and only ten drive units 231 are shown in the figure. Each drive unit 231 includes a drive cassette 232, a gate drive unit 233, and a protective cover 234. Specifically, six of the twelve driving units 231 are mounted on opposite end surfaces of one driving mounting plate 230. Each drive cassette 232 is fixedly mounted on the drive mounting plate 230 and each gate drive unit 233 is mounted inside the drive cassette 232 and surrounded by a protective shield 234 on the outside of the drive cassette 232 to protect the gate drive units 233 from being damaged or destroyed during storage and transportation.
Specifically, in one embodiment, the converter module 100 further includes two handles 225, and the two handles 225 are mounted on the support column 220 by screw fastening, so as to facilitate the transportation of the converter module 100. Specifically, both ends of the driving mounting plate 230 are fastened and mounted on the supporting column 220 by screws, and a driving box 232 is mounted on the driving mounting plate 230. The gate driving unit 233 is installed inside the driving case 232, and a protective cover 234 is also installed on the driving installation plate 230 by screw fastening, for protecting the gate driving unit 233 from being damaged or injured during storage and transportation. Specifically, the control mounting plate 240 is mounted on the dc support capacitor 222 by screw fastening, and a control power supply 241 and a transmission control unit 242 are mounted on an end surface of the control mounting plate 240 away from the dc support capacitor 222 by screw fastening, and specifically, the control power supply 241 and the transmission control unit 242 are respectively mounted on both ends of the control mounting plate 240.
Specifically, in one embodiment, the transmission control unit 242 is configured to receive an operation command of the cab and convert the operation command into a control signal recognizable by the gate driving unit 233 so that the gate driving unit 233 controls the converter module 100 to perform an action, and specifically, the transmission control unit 242 is further configured to receive and process a fault signal of the converter module 100. And the current sensor 216 is used for monitoring each path of output current in real time and ensuring the normal operation of the converter module 100. The temperature relay 212 is configured to transmit an over-temperature signal to the transmission control unit 242 when the converter module 100 exceeds a safe operating temperature, and the transmission control unit 242 outputs a blocking control signal to the gate driving unit 233 to control the converter module 100 to stop operating.
Specifically, the converter module 100 provided in this embodiment isolates the control circuit from the strong current circuit part to reduce the interference of the strong current part to the control circuit, thereby improving the stability of the module operation, and reduces the stray inductance of the circuit by adopting the low-inductance busbar 215 design for the direct current circuit part, thereby improving the overall electrical performance of the module, and ensuring the stable operation of the IGBT device 211 in the high-frequency switching state. Further, the converter module 100 provided by the embodiment adopts a laminated installation mode, and is installed from bottom to top in sequence, so that the installation is simple and convenient, the maintenance is convenient, and the handle 225 is arranged on the converter module 100, so that the carrying of the converter module 100 is convenient.
Specifically, the converter film 100 provided by the embodiment of the present invention can meet the requirements of functions, performance and interfaces of a typical low-floor traction system, and the circuit, material and structure are implemented in a platform and simplified manner. Meanwhile, the integration capability of the low-floor traction system is improved by deeply researching a main circuit of the low-floor traction system, lightweight materials and structure technology, structure and material universalization and simplification, an EMC technology, material selection and use strategies, a material reliability test method, a processing technology, an appearance improvement technology and the like, so that the converter module has more price advantage than imported products on the premise of meeting system performance indexes, meets the low-price competitive demand of the future market and improves the competitiveness of low-floor platform products.
Specifically, an embodiment of the present invention further provides a converter, and specifically, the converter includes a converter module 100 shown in the embodiments of fig. 1 to 11, which is not described herein again.
Specifically, the converter module 100 and the converter provided in this embodiment, through setting up two sets of three-phase inverter circuits and two sets of chopper circuits, so as to satisfy the power supply requirements of two traction motors simultaneously, and through two DC/DC conversion circuits, so as to realize bidirectional chopping, thereby can supply power to the external super capacitor with the grid DC buck chopping, also can supply the converter module 100 with the external super capacitor voltage boost chopping, and simultaneously still through connecting in parallel a regeneration controllable loop in the converter module 100 all the way, so that when the external super capacitor cannot absorb the braking energy, the electric energy can be preferentially fed back to the grid through the regeneration controllable loop, the performance stability of the converter module 100 is improved, and the converter module 100 is simple in structure, and a stacked installation manner is adopted, thereby facilitating maintenance.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The converter module is characterized by comprising a regeneration controllable circuit, a first DC/DC conversion circuit, a second DC/DC conversion circuit, a first chopper circuit, a second chopper circuit, a first three-phase inverter circuit and a second three-phase inverter circuit; a first interface of the regeneration controllable circuit is connected with the anode of a power grid, a second interface of the regeneration controllable circuit is connected with the cathode of the power grid, and a third interface of the regeneration controllable circuit is connected with the anode interface of a power supply; a first interface of the first DC/DC conversion circuit is connected to a third interface of the regeneration controllable circuit, and a second interface of the first DC/DC conversion circuit is connected to a second interface of the regeneration controllable circuit; a first interface of the second DC/DC conversion circuit is connected to a first interface of the first DC/DC conversion circuit, and a second interface of the second DC/DC conversion circuit is connected to a second interface of the first DC/DC conversion circuit; the first interface of the first chopper circuit and the first interface of the second chopper circuit are both connected with the first interface of the second DC/DC conversion circuit, and the second interface of the first chopper circuit and the second interface of the second chopper circuit are both connected with the second interface of the second DC/DC conversion circuit; a first interface of the first three-phase inverter circuit is connected with a first interface of the first chopper circuit, and a second interface of the first three-phase inverter circuit is connected with a second interface of the first chopper circuit; and a first interface of the second three-phase inverter circuit is connected with a first interface of the second chopper circuit, and a second interface of the second three-phase inverter circuit is connected with a second interface of the second chopper circuit.
2. The converter module of claim 1, further comprising a dc support capacitor, a first end of the dc support capacitor being connected to the third interface of the regenerative controllable circuit, and a second end of the dc support capacitor being connected to the second interface of the regenerative controllable circuit.
3. The converter module of claim 1, wherein the converter module comprises twelve IGBT devices, wherein the first chopper circuit comprises a first IGBT device of the twelve IGBT devices, wherein the first three-phase inverter circuit comprises a second IGBT device, a third IGBT device, and a fourth IGBT device of the twelve IGBT devices, wherein the second chopper circuit comprises a fifth IGBT device of the twelve IGBT devices, wherein the second three-phase inverter circuit comprises a sixth IGBT device, a seventh IGBT device, and an eighth IGBT device of the twelve IGBT devices, wherein the regeneration controllable circuit comprises a ninth IGBT device and a tenth IGBT device of the twelve IGBT devices, wherein the first DC/DC conversion circuit comprises an eleventh IGBT device of the twelve IGBT devices, and wherein the second DC/DC conversion circuit comprises a twelfth IGBT device of the twelve IGBT devices.
4. The current transformer module of claim 1, further comprising a first current sensor, a second current sensor, a third current sensor, a fourth current sensor, a fifth current sensor, a sixth current sensor, a seventh current sensor, and an eighth current sensor; the first end of the first current sensor is connected with the third interface of the first three-phase inverter circuit, and the second end of the first current sensor is connected with the first phase output end of the first three-phase inverter circuit; the first end of the second current sensor is connected with the fourth interface of the first three-phase inverter circuit, and the second end of the second current sensor is connected with the second phase output end of the first three-phase inverter circuit; a fifth interface of the first three-phase inverter circuit is connected with a third phase output end of the first three-phase inverter circuit; a first end of the third current sensor is connected with a third interface of the first chopper circuit, and a second end of the third current sensor is connected with an external interface of the first chopper circuit; a first end of the fourth current sensor is connected with a third interface of the second three-phase inverter circuit, and a second end of the fourth current sensor is connected with a first-phase output end of the second three-phase inverter circuit; a first end of the fifth current sensor is connected with a fourth interface of the second three-phase inverter circuit, and a second end of the fifth current sensor is connected with a second-phase output end of the second three-phase inverter circuit; a fifth interface of the second three-phase inverter circuit is connected with a third phase output end of the second three-phase inverter circuit; a first end of the sixth current sensor is connected with a third interface of the second chopper circuit, and a second end of the sixth current sensor is connected with an external interface of the second chopper circuit; a first end of the seventh current sensor is connected with the third interface of the first DC/DC conversion circuit, and a second end of the seventh current sensor is connected with the external interface of the first DC/DC conversion circuit; a first end of the eighth current sensor is connected with the third interface of the second DC/DC conversion circuit, and a second end of the eighth current sensor is connected with the external interface of the second DC/DC conversion circuit.
5. The converter module according to any one of claims 1 to 4, wherein the converter module further comprises a heat sink, a temperature relay, a detection board and a lower AC bus bar, wherein a plurality of IGBT device arrays are mounted on an end face of the heat sink, the temperature relay is fixedly mounted on an end face of the heat sink, and the detection board and the lower AC bus bar are mounted on the IGBT devices.
6. The converter module of claim 5, further comprising a low-inductance busbar and an upper-layer AC busbar, wherein the low-inductance busbar and the upper-layer AC busbar are both mounted on the IGBT device, the low-inductance busbar is located above the IGBT device, and the upper-layer AC busbar is located above the low-inductance busbar.
7. The converter module of claim 6, further comprising a support post fixedly mounted on an end face of the heat sink and a capacitor mount fixedly mounted on the support post, wherein a DC support capacitor is fixedly mounted on the capacitor mount, and wherein the DC support capacitor is electrically connected to the low-inductance bus bar.
8. The converter module according to claim 7, further comprising a dc isolation wire holder, a patch panel and an ac isolation wire holder, wherein the dc isolation wire holder is fixedly mounted on the capacitor mounting base, and the dc input end of the low-inductance bus bar is overlapped on the dc isolation wire holder to serve as a dc input interface of the converter module; the adapter plate is fixedly arranged on the support column, the alternating current insulation wire holder is fixedly arranged on the adapter plate, and alternating current output ends of the lower layer alternating current busbar and the upper layer alternating current busbar are lapped on the alternating current insulation wire holder to be used as an alternating current output interface of the converter module; and current sensors are respectively arranged at the output ends of the lower layer alternating current busbar and the plurality of alternating current busbars in the upper layer alternating current busbar in a penetrating manner.
9. The converter module according to claim 8, further comprising a driving mounting plate, a driving unit, a control mounting plate, a control power supply and a transmission control unit, wherein two ends of the driving mounting plate are fixedly mounted on the supporting pillar, the driving mounting plate is located on a side surface of the converter module, the driving unit is fixedly mounted on an end surface of the driving mounting plate, the control mounting plate is fixedly mounted on the supporting pillar, the control mounting plate is located above the upper-layer ac busbar, and the control power supply and the transmission control unit are fixedly mounted on the control mounting plate.
10. A converter, characterized in that it comprises a converter module according to any one of claims 1 to 9.
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| CN201810950746.7A CN110855158A (en) | 2018-08-20 | 2018-08-20 | Converter module and converter |
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| CN201810950746.7A CN110855158A (en) | 2018-08-20 | 2018-08-20 | Converter module and converter |
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| CN112713788A (en) * | 2020-12-25 | 2021-04-27 | 中车永济电机有限公司 | Power module suitable for permanent magnet traction inverter |
| CN113114052A (en) * | 2021-03-08 | 2021-07-13 | 清华大学 | Water-cooling high-power full-bridge unit based on crimping type IGCT |
| CN114094842A (en) * | 2020-08-03 | 2022-02-25 | 中车株洲电力机车研究所有限公司 | Converter module |
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| CN113114052A (en) * | 2021-03-08 | 2021-07-13 | 清华大学 | Water-cooling high-power full-bridge unit based on crimping type IGCT |
| CN113114052B (en) * | 2021-03-08 | 2022-05-03 | 清华大学 | Water-cooling high-power full-bridge unit based on crimping type IGCT |
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