CN205249057U - General type high pressure rotor frequency conversion ware - Google Patents
General type high pressure rotor frequency conversion ware Download PDFInfo
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- CN205249057U CN205249057U CN201521018613.4U CN201521018613U CN205249057U CN 205249057 U CN205249057 U CN 205249057U CN 201521018613 U CN201521018613 U CN 201521018613U CN 205249057 U CN205249057 U CN 205249057U
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- frequency converter
- converter
- external interface
- high pressure
- pressure rotor
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Abstract
The utility model discloses a general type high pressure rotor frequency conversion ware, the converter includes rectifier, first external interface, contrary diode, the external interface of second, dc -to -ac converter, IGBT chopper, condenser and the protective diode of ending. The beneficial effects of the utility model reside in that, by the different brackets of IGBT chopper withstand voltage, fall into different products, do not need every equipment all to carry out the once -through design again. Do not set up mechanical actuating mechanism inside the converter, the converter is non -maintaining, makes the converter satisfy different work demands through the external reactor of selecting different parameters. The inside highly integrated of converter, it is small, compact structure. Require peripheral circuit of design can realize each item control function according to difference control during the use, give the user more selection spaces.
Description
Technical field
The utility model relates to high-voltage motor speed adjusting technique field, is specifically related to the high pressure rotor frequency converter in a kind of high voltage converter.
Background technology
High pressure rotor frequency converter is a kind of high-voltage alternating coiling electric motor speed control device growing up in recent years, is generally used for the high-voltage alternating asynchronous winding motor of Driving Fan load of the pumps. Be widely used at multiple fields such as electric power, building materials, water conservancy, city heat supply, water supply.
High pressure rotor frequency converter is all taking boost chopper (Boost) as basic prototype, adapted capacity motor is that 220KW is between 5000KW, frequency converter does not have the ability starting from zero rotating speed, the general mode that adopts the resistance of bypass liquid to start automatically switches to frequency converter and carries out speed control in the time starting to certain rotating speed.
High pressure rotor frequency converter is in the time choosing, all generally that user provides load and the parameter of electric machine, manufacturer is according to parameter specific design, because frequency converter internal structure is to be all made up of discrete component, product integrated level is low, make to manufacture every rotor-side variable frequency device and all will carry out primary production design, time-consuming taking a lot of work.
In high pressure rotor frequency converter equipment, core component is copped wave module. Generally all use more than 1000 volts IGBT to form copped wave module. Substantially all dependence on import of more than 1000 volts IGBT in the market. High pressure rotor frequency converter copped wave module is selected 1200V/800A conventionally, these three kinds of 1700V/800A and 3300V/800A. The withstand voltage of frequency converter inner member is all to design according to the voltage at copped wave module two ends. Fewer in view of conventional IGBT model, we can be divided into several different models according to the withstand voltage difference of copped wave module high pressure rotor frequency converter. Rectifier small and exquisite volume, chopper, inverter, driver module. Communication detection module is all incorporated in a casing, and the too fat to move filter reactor of volume, vacuum circuit breaker is connected in main circuit by busbar interface reserved on casing.
With reference to the low voltage frequency converter product on market, the main power electronic devices of low voltage frequency converter is all integrated in a casing, according to different control requirements, user only need design a peripheral circuit just can well realize every control function, technical requirement to user is lower, has also met the diversified demand of user. With reference to low voltage frequency converter product, it is small and exquisite that we need to produce a kind of volume, the high pressure rotor frequency converter of programmable control, and after product export, user only need to require a peripheral circuit of design just can realize every control function according to different control. More select space to user.
Utility model content
In view of the defect of prior art, the utility model is intended to provide a kind of universal high pressure rotor frequency converter, can make high pressure rotor frequency changer simpler, and volume significantly dwindles, and is applicable to batch production.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of universal high pressure rotor frequency converter, described frequency converter comprises rectifier, the first external interface, check diode, the second external interface, inverter, IGBT chopper, capacitor and protection two utmost points.
Wherein, the input that the three-phase alternating current input of described rectifier is described frequency converter, the direct current output cathode of described rectifier connects one end of described the first external interface, the other end of described the first external interface is connected in the grid of described IGBT chopper, and is connected in the negative electrode of described check diode simultaneously;
The anodic bonding of described check diode is in one end of described the second external interface, and is connected in one end of described capacitor and the anode of described protection diode simultaneously; The other end of described the second external interface connects the positive pole of described inverter;
The ac output end of described inverter is as the output of described frequency converter; the negative pole of described inverter is connected in the other end of described capacitor; and be connected in the negative electrode of described protection diode simultaneously, then be connected in the emitter-base bandgap grading of described IGBT chopper and the negative pole of described rectifier.
Preferably, described frequency converter inside is Metal Packaging structure.
The beneficial effects of the utility model are, by the different brackets of IGBT chopper withstand voltage, are divided into different products, do not need every equipment all to re-start once design. In frequency converter inside, mechanical executing agency is not set, frequency converter is non-maintaining, makes frequency converter meet different work requirements by the external reactor of selecting different parameters. Frequency converter internal height is integrated, and volume is little, compact conformation. When use, require a peripheral circuit of design can realize every control function according to difference control, more select space to user.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: rectifier 1, the first external interface 2, check diode 3, the second external interface 4, inverter 5, IGBT chopper 6, capacitor 7, protection diode 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, the utility model is a kind of universal high pressure rotor frequency converter, and described frequency converter comprises rectifier, the first external interface, check diode, the second external interface, inverter, IGBT chopper, capacitor and protection two utmost points.
Wherein, the input that the three-phase alternating current input of described rectifier is described frequency converter, the direct current output cathode of described rectifier connects one end of described the first external interface, the other end of described the first external interface is connected in the grid of described IGBT chopper, and is connected in the negative electrode of described check diode simultaneously;
The anodic bonding of described check diode is in one end of described the second external interface, and is connected in one end of described capacitor and the anode of described protection diode simultaneously; The other end of described the second external interface connects the positive pole of described inverter;
The ac output end of described inverter is as the output of described frequency converter; the negative pole of described inverter is connected in the other end of described capacitor; and be connected in the negative electrode of described protection diode simultaneously, then be connected in the emitter-base bandgap grading of described IGBT chopper and the negative pole of described rectifier.
As a kind of embodiment, in the utility model, can be divided into different kinds according to the withstand voltage of IGBT chopper, for the different parameters of electric machine, selecting suitable model, is frequency converter apolegamy reactor according to the actual parameter of motor and the speed governing degree of depth, is connected to external interface. Can also be control circuit of Design of Inverter, the control of the frequency converter making by contactor be more diversified.
As a kind of embodiment, in the utility model, inside can adopt the structure of Metal Packaging that other additional devices such as control module and various sampling original paper, driver module, communication module are installed. Frequency Converter Control and parameter setting are realized the function of frequency converter are selected and parameter setting by host computer or touch-screen or hand behaviour plate. Frequency converter can also arrange multiple external control interface, to meet the control requirement that user is different.
In addition, the utility model is applicable to the high-tension winding motor of rotor voltage 220V to 2500V, frequency converter uses the orthogonal unsteady flow pattern of handing over, the variable frequency current calibration that rotor flows out becomes after direct current, complete the control to power by copped wave unit, then export 50 hz AC electricity through active inversion and be connected to motor stator side by contravariant transformer.
For a person skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and distortion, and these all changes and distortion all should belong to the protection domain of the utility model claim within.
Claims (2)
1. a universal high pressure rotor frequency converter, is characterized in that, described frequency converter comprisesRectifier, the first external interface, check diode, the second external interface, inverter, IGBTChopper, capacitor and protection diode;
Wherein, the input that the three-phase alternating current input of described rectifier is described frequency converter, instituteThe direct current output cathode of stating rectifier connects one end of described the first external interface, outside described firstThe other end of putting interface is connected in the grid of described IGBT chopper, and described in being connected in simultaneouslyThe negative electrode of check diode; The anodic bonding of described check diode is in described the second external interfaceOne end, and be connected in one end of described capacitor and the anode of described protection diode simultaneously;The other end of described the second external interface connects the positive pole of described inverter, the friendship of described inverterStream output is as the output of described frequency converter, and the negative pole of described inverter is connected in described electricityThe other end of container, and be connected in the negative electrode of described protection diode simultaneously, then described in being connected inThe emitter-base bandgap grading of IGBT chopper and the negative pole of described rectifier.
2. universal high pressure rotor frequency converter according to claim 1, is characterized in that,Described frequency converter inside is Metal Packaging structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018613.4U CN205249057U (en) | 2015-12-10 | 2015-12-10 | General type high pressure rotor frequency conversion ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018613.4U CN205249057U (en) | 2015-12-10 | 2015-12-10 | General type high pressure rotor frequency conversion ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205249057U true CN205249057U (en) | 2016-05-18 |
Family
ID=55948126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521018613.4U Expired - Fee Related CN205249057U (en) | 2015-12-10 | 2015-12-10 | General type high pressure rotor frequency conversion ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205249057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874201A (en) * | 2020-07-13 | 2020-11-03 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Energy storage formula boats and ships are from flowing cooling system |
| CN111874202A (en) * | 2020-07-13 | 2020-11-03 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Energy-consuming ship self-flow cooling system |
-
2015
- 2015-12-10 CN CN201521018613.4U patent/CN205249057U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874201A (en) * | 2020-07-13 | 2020-11-03 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Energy storage formula boats and ships are from flowing cooling system |
| CN111874202A (en) * | 2020-07-13 | 2020-11-03 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Energy-consuming ship self-flow cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20181210 |