CN204855681U - Energy -conserving repayment type electronic load based on converter - Google Patents
Energy -conserving repayment type electronic load based on converter Download PDFInfo
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- CN204855681U CN204855681U CN201520600584.6U CN201520600584U CN204855681U CN 204855681 U CN204855681 U CN 204855681U CN 201520600584 U CN201520600584 U CN 201520600584U CN 204855681 U CN204855681 U CN 204855681U
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Abstract
The utility model discloses an energy -conserving repayment type electronic load based on converter, including converter, motor simulator, transformer, rectification filter circuit and to inverter unit, the commercial power inserts the input of converter, the output of converter connects to the input of motor simulator, the input of output termination to the transformer of motor simulator, the output of transformer connects to rectification filter circuit's input, rectification filter circuit's output termination to and to inverter unit's input to output termination to commercial power electric wire netting to inverter unit, the utility model relates to a rationally, convenient to use, it is with low costs, the material resources of using manpower sparingly.
Description
Technical field
The utility model relates to that frequency converter is aging, field tests, is specifically related to a kind of energy-saving feedback type electronic load based on frequency converter.
Background technology
Traditional frequency converter aging method utilizes motor as the mode of load to carry out aging, test, and allow motor dally, the output power of frequency converter all slatterned, waste of energy is huge.In recent years, occurred some new energy-saving electric loads, the electric energy of the output of frequency converter, as the load of frequency converter, is become kinetic energy by motor, after sending and receiving motor again, motor output kinetic energy is converted to electric energy for final equipment by generator.Although achieve recycling of energy, still there are following two shortcomings: cost is high, the frequency converter of different size needs the different motor of configuration and generator motor, and the cost of a motor and generator is inherently very high; The electricity that generator sends cannot be parallel to electrical network, and terminal power consumption and generator export electric energy and cannot mate, and frequency converter will be caused to transship or underloading; Overload easily causes frequency converter to damage, and underloading just cannot make frequency converter really meet aging or test request; Lost labor, the frequency converter of different size needs the different motor of configuration and generator, as long as the specification of frequency converter changes, all need manually to change motor and generator, this will cause a large amount of artificial wastes; Automaticity is low, and maloperation is high: when the specification of frequency converter changes, and all needs manually to change motor and generator, as long as there is manual operation, just can not ensure that each operation is all correct, the probability made mistake significantly increases.
Summary of the invention
The main object of the utility model is, overcomes the deficiencies in the prior art, proposes a kind of energy-saving feedback type electronic load based on frequency converter.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of energy-saving feedback type electronic load based on frequency converter, comprise frequency converter, motor simulator, transformer, current rectifying and wave filtering circuit and and to inversion unit, the input end of civil power access frequency converter, the output of frequency converter is connected to the input end of motor simulator, the output terminal of motor simulator is connected to the input end of transformer, the output of transformer is connected to the input end of current rectifying and wave filtering circuit, the output terminal of current rectifying and wave filtering circuit is connected to and to the input end of inversion unit, and is connected to utility grid to the output terminal of inversion unit.
Preferably, electronic load includes but not limited to motor simulator, transformer, current rectifying and wave filtering circuit and and to inversion unit.
And comprise booster circuit, inverter circuit, control module and computer to inversion unit, the input end of booster circuit connects current rectifying and wave filtering circuit, the output terminal of booster circuit is connected to the input end of inverter circuit, booster circuit and inverter circuit connection control unit respectively, computer communicates to connect control module by RS485.
Motor simulator is formed by a dry reactor or multiple inductance high frequency serial, forms LC wave filter again after series connection with Capacitance parallel connection.
Current rectifying and wave filtering circuit includes but not limited to that the three-phase commutation bridge that diode D2, D3, D4, D5, D6 and D7 form is in parallel with electric capacity C4.
Inverter circuit comprises switching power tube Q2, Q3, Q4, Q5, electric capacity C7 and inductance L 5, common composition composition full bridge inverter.
Have employed technique scheme, the beneficial effects of the utility model are:
Reasonable in design, easy to use, cost is low: relative to the burn-in test mode of motor and generator, and this novel cost has and significantly reduces;
Power saving: energy-saving feedback type electronic load is aging by frequency converter, test time about 80% output power feed back to electrical network by the mode of transformation of electrical energy, achieve energy recycling, reach the effect of power saving about 80%;
Economize people: combining inverter can adjust the grid-connected power of combining inverter in real time according to the difference of power converter output, reach the frequency converter of Auto-matching different size.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is schematic diagram of the present utility model;
Fig. 3 is motor simulator schematic diagram of the present utility model;
Fig. 4 is current rectifying and wave filtering circuit figure of the present utility model;
Fig. 5 is booster circuit figure of the present utility model;
Fig. 6 is inverter circuit of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of energy-saving feedback type electronic load based on frequency converter, comprises frequency converter 1, motor simulator 2, transformer 3, current rectifying and wave filtering circuit 4 and and to inversion unit 8, the input end of civil power access frequency converter 1, the output of frequency converter 1 is connected to the input end of motor simulator 2, the output terminal of motor simulator 2 is connected to the input end of transformer 3, the output of transformer 3 is connected to the input end of current rectifying and wave filtering circuit 4, the output terminal of current rectifying and wave filtering circuit 4 is connected to and to the input end of inversion unit 8, and is connected to utility grid to the output terminal of inversion unit 8, and electronic load includes but not limited to motor simulator 2, transformer 3, current rectifying and wave filtering circuit 4 and and to inversion unit 8, and comprise booster circuit 5 to inversion unit 8, inverter circuit 6, control module 7 and computer 9, the input end of booster circuit 5 connects current rectifying and wave filtering circuit 4, the output terminal of booster circuit 5 is connected to the input end of inverter circuit 6, booster circuit 5 and inverter circuit 6 connection control unit 7 respectively, computer 9 communicates to connect control module 7 by RS485, motor simulator is formed by a dry reactor or multiple inductance high frequency serial, and form LC wave filter with Capacitance parallel connection again after series connection, current rectifying and wave filtering circuit includes but not limited to diode D2, D3, D4, D5, the three-phase commutation bridge of D6 and D7 composition is in parallel with electric capacity C4, and inverter circuit comprises switching power tube Q2, Q3, Q4, Q5, electric capacity C7 and inductance L 5, common composition composition full bridge inverter.
The effect of motor simulator is the pure inductance characteristic of simulation motor, ensures that the output current wave of frequency converter is sinusoidal wave, and the output of guarantee motor simulator is simultaneously that the sine wave of low frequency uses for transformer inputs.Motor simulator is three-phase waveform, and one is formed by a dry reactor or multiple inductance high frequency serial mutually, forms a LC wave filter with the polarity free capacitor C on the right side, the radio-frequency component exported with filtering frequency converter, retains lower-frequency envelope line.
Current rectifying and wave filtering circuit effect is ac voltage rectifier transformation exported is direct, so that boosting part below uses.
The output of current rectifying and wave filtering circuit is the voltage of variable about 300V, and its voltage can change according to the difference of frequency converter output frequency, and variable voltage transitions is about 400V burning voltage by booster circuit, so that the Converting Unit of rear class uses.
Booster circuit is made up of components and parts such as power tube Q1, diode D8, inductance L 4, electric capacity.
The output terminal of the boosted module of input termination of inverter circuit, the output terminal of inverter circuit is connected to civil power.Switching power tube Q2, Q3, Q4, Q5, electric capacity C7, inductance L 5 form a full bridge inverter, by grid-connected for the high voltage of about 400V to civil power.By grid-connected for the high voltage of about 400V to civil power.Utilize to realize power cycle.
Inverter circuit includes but not limited to full-bridge inverting topological structure.It is characterized in that: part of boosting exports 400V voltage parallel network reverse to electrical network, that is, ensure that grid-connected current and civil power are with frequency homophase simultaneously, and be the sine wave of standard.
Claims (6)
1. the energy-saving feedback type electronic load based on frequency converter, comprise frequency converter, motor simulator, transformer, current rectifying and wave filtering circuit and and to inversion unit, it is characterized in that: the input end of civil power access frequency converter, the output of frequency converter is connected to the input end of motor simulator, the output terminal of motor simulator is connected to the input end of transformer, the output of transformer is connected to the input end of current rectifying and wave filtering circuit, the output terminal of current rectifying and wave filtering circuit is connected to and to the input end of inversion unit, and is connected to utility grid to the output terminal of inversion unit.
2. a kind of energy-saving feedback type electronic load based on frequency converter as claimed in claim 1, is characterized in that: described electronic load includes but not limited to motor simulator, transformer, current rectifying and wave filtering circuit and and to inversion unit.
3. a kind of energy-saving feedback type electronic load based on frequency converter as claimed in claim 1, it is characterized in that: described and comprise booster circuit, inverter circuit, control module and computer to inversion unit, the input end of booster circuit connects current rectifying and wave filtering circuit, the output terminal of booster circuit is connected to the input end of inverter circuit, booster circuit and inverter circuit connection control unit respectively, computer communicates to connect control module by RS485.
4. a kind of energy-saving feedback type electronic load based on frequency converter as claimed in claim 1, is characterized in that: described motor simulator is formed by a dry reactor or multiple inductance high frequency serial, forms LC wave filter again after series connection with Capacitance parallel connection.
5. a kind of energy-saving feedback type electronic load based on frequency converter as claimed in claim 1, is characterized in that: described current rectifying and wave filtering circuit includes but not limited to that the three-phase commutation bridge that diode D2, D3, D4, D5, D6 and D7 form is in parallel with electric capacity C4.
6. a kind of energy-saving feedback type electronic load based on frequency converter as claimed in claim 2, is characterized in that: described inverter circuit comprises switching power tube Q2, Q3, Q4, Q5, electric capacity C7 and inductance L 5, common composition composition full bridge inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600584.6U CN204855681U (en) | 2015-08-11 | 2015-08-11 | Energy -conserving repayment type electronic load based on converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600584.6U CN204855681U (en) | 2015-08-11 | 2015-08-11 | Energy -conserving repayment type electronic load based on converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204855681U true CN204855681U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520600584.6U Expired - Fee Related CN204855681U (en) | 2015-08-11 | 2015-08-11 | Energy -conserving repayment type electronic load based on converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699817A (en) * | 2016-03-09 | 2016-06-22 | 武汉港迪电气传动技术有限公司 | Energy-saving type frequency converter load testing system and method |
| CN105932891A (en) * | 2016-06-28 | 2016-09-07 | 芜湖格利特新能源科技有限公司 | Energy-saving electronic load simulator |
| CN105955071A (en) * | 2016-07-13 | 2016-09-21 | 北京润科通用技术有限公司 | Load simulation circuit and power level motor simulation test equipment |
| CN106226632A (en) * | 2016-09-06 | 2016-12-14 | 东莞市冠达自动化设备有限公司 | A kind of motor variable-frequency driver aging testing system and method for testing thereof |
-
2015
- 2015-08-11 CN CN201520600584.6U patent/CN204855681U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699817A (en) * | 2016-03-09 | 2016-06-22 | 武汉港迪电气传动技术有限公司 | Energy-saving type frequency converter load testing system and method |
| CN105932891A (en) * | 2016-06-28 | 2016-09-07 | 芜湖格利特新能源科技有限公司 | Energy-saving electronic load simulator |
| CN105955071A (en) * | 2016-07-13 | 2016-09-21 | 北京润科通用技术有限公司 | Load simulation circuit and power level motor simulation test equipment |
| CN105955071B (en) * | 2016-07-13 | 2019-01-25 | 北京润科通用技术有限公司 | A kind of load simulation circuit and power stage Emulation of Electrical Machinery test equipment |
| CN106226632A (en) * | 2016-09-06 | 2016-12-14 | 东莞市冠达自动化设备有限公司 | A kind of motor variable-frequency driver aging testing system and method for testing thereof |
| CN106226632B (en) * | 2016-09-06 | 2023-10-20 | 东莞市冠达自动化设备有限公司 | Aging test system and method for variable frequency drive of motor |
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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: 20151209 Termination date: 20200811 |