CN102723786A - DC (direct current) feed type motor energy saving device - Google Patents
DC (direct current) feed type motor energy saving device Download PDFInfo
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- CN102723786A CN102723786A CN2012101951645A CN201210195164A CN102723786A CN 102723786 A CN102723786 A CN 102723786A CN 2012101951645 A CN2012101951645 A CN 2012101951645A CN 201210195164 A CN201210195164 A CN 201210195164A CN 102723786 A CN102723786 A CN 102723786A
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Abstract
The invention discloses a DC (direct current) feed type motor energy saving device and belongs to the field of motor drive application. The device comprises a motor controller with a DC bus, a bidirectional DC/DC converter, a super capacitor and a detection control circuit, wherein the AC (alternating current) input end of the motor controller is connected to a power grid AC bus; the output end of the motor controller is connected with the motor; the high-voltage end of the bidirectional DC/DC converter is connected with the DC bus of the motor controller; the low-voltage end of the bidirectional DC/DC converter is connected with the super capacitor; and the detection control circuit is connected with the DC bus of the motor controller, the power grid AC bus and the bidirectional DC/DC converter respectively. The device disclosed by the invention is simple and reasonable, can be used for realizing power saving, preventing harmonic interference on the power grid and guaranteeing the quality of the power grid, and is low in cost.
Description
Technical field
The invention belongs to the motor-driven application.
Background technology
Motor driven systems is an application parts very widely; In national economy, be in indispensable status; In some particular places were used, machine operation replaced transition status in motor/generator, and the electric energy that is produced during in the generator state in machine operation is wasted.Also some motor driven systems has adopted electric energy feedback mode at present; Promptly offer motor, also can be implemented in the function that electric energy that machine operation produced feeds back to electrical network simultaneously when the generator state, but this mode need adopt the synchronized inverter to carry out the energy feedback to electrical network by absorbing energy on the electrical network; Its shortcoming is when electrical network carries out feedback energy, electrical network to be produced Harmonic Interference; Influence power grid quality, control simultaneously is complicated, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of mode of utilizing ultracapacitor energy storage, realize the energy-conservation DC feedback formula electrical machine energy-saving device of motor driven systems.
The technical scheme that realizes above-mentioned purpose is: DC feedback formula electrical machine energy-saving device is characterized in that: comprise the electric machine controller with dc bus, two-way DC/DC converter, ultracapacitor and detection control circuit; The ac input end of said electric machine controller is connected on the electrical network ac bus, and the output of said electric machine controller connects motor; The high-pressure side of described two-way DC/DC converter is connected on the dc bus of said electric machine controller, and the low-pressure end of two-way DC/DC converter is connected on the said ultracapacitor; Described detection control circuit is connected with dc bus, electrical network ac bus and the two-way DC/DC converter of electric machine controller respectively.
The interchange input side of electric machine controller of the present invention connects the electrical network ac bus, and its outlet side connects motor, is used for to motor electric energy being provided from the electrical network ac bus.The high-pressure side of two-way DC/DC converter is connected on the dc bus of said electric machine controller; The low-pressure end of two-way DC/DC converter is connected on the said ultracapacitor, and its effect is that the electric energy that machine operation is produced when the generator state is carried out energy storage by ultracapacitor after two-way DC/DC converter is regulated.Two-way DC/DC converter feeds back to the electric energy that ultracapacitor stored up on the dc bus of electric machine controller when motor returns to electric motor state, realizes the economize on electricity control of motor.Detect DC bus-bar voltage and electric machine operation state that control circuit is used for detection of grid ac bus voltage, electric machine controller, regulate the mode of operation of the two-way DC/DC converter of control.
The present invention is simple and reasonable for structure; The electric energy that is produced during in the generator state in machine operation is stored in the ultracapacitor; The electric energy that ultracapacitor stored up when motor returns to electric motor state feeds back on the dc bus of electric machine controller, has realized the purpose of economize on electricity, can not produce Harmonic Interference to electrical network simultaneously; Ensure power grid quality, cost is low.
Description of drawings
Fig. 1 is a structure principle chart of the present invention.
Embodiment
As shown in Figure 1, the present invention mainly is made up of the electric machine controller with dc bus 2, two-way DC/DC converter 6, ultracapacitor 7 and detection control circuit 4;
Ac input end with motor controller 2 of dc bus 5 connects electrical network ac bus 1, and its output connects motor 3, and its effect is to be used for to motor 3 electric energy being provided from electrical network ac bus 1.
The high-pressure side of two-way DC/DC converter 6 is connected on the dc bus 5 of motor controller 2; Its output connects on the ultracapacitor 7, and its effect is that the electric energy that is produced when motor 3 is worked in the generator state carries out energy storage by ultracapacitor 7 after two-way DC/DC converter 6 is regulated.The electric energy that two-way DC/DC converter 6 is stored up ultracapacitor 7 when motor 3 returns to electric motor state feeds back on the dc bus 5 of motor controller 2, realizes the economize on electricity control of motor 3.
Detecting control circuit 4 is connected with dc bus 5, electrical network ac bus 1 and the two-way DC/DC converter 6 of electric machine controller 2 respectively; The effect that detects control circuit 4 is dc bus 5 voltages and motor 3 operating states of detection of grid ac bus 1 voltage, electric machine controller, regulates the mode of operation of the two-way DC/DC converter 6 of control.
Claims (1)
1. DC feedback formula electrical machine energy-saving device is characterized in that: comprise the electric machine controller with dc bus, two-way DC/DC converter, ultracapacitor and detection control circuit; The ac input end of said electric machine controller is connected on the electrical network ac bus, and the output of said electric machine controller connects motor; The high-pressure side of described two-way DC/DC converter is connected on the dc bus of said electric machine controller, and the low-pressure end of two-way DC/DC converter is connected on the said ultracapacitor; Described detection control circuit is connected with dc bus, electrical network ac bus and the two-way DC/DC converter of electric machine controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101951645A CN102723786A (en) | 2012-06-14 | 2012-06-14 | DC (direct current) feed type motor energy saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101951645A CN102723786A (en) | 2012-06-14 | 2012-06-14 | DC (direct current) feed type motor energy saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723786A true CN102723786A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101951645A Pending CN102723786A (en) | 2012-06-14 | 2012-06-14 | DC (direct current) feed type motor energy saving device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102723786A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785707A (en) * | 2005-12-09 | 2006-06-14 | 清华大学 | Fuel battery automobile mixed power system using super capacity as auxiliary power device |
| CN1948045A (en) * | 2006-11-15 | 2007-04-18 | 北京交通大学 | Driving control system for mine electric vehicles |
| CN202260482U (en) * | 2011-10-12 | 2012-05-30 | 扬州华泰电子有限公司 | Direct-current feed type energy saving device for motor |
| CN202634086U (en) * | 2012-06-14 | 2012-12-26 | 扬州华泰电子有限公司 | Energy-saving device of direct-current feed-type motor |
-
2012
- 2012-06-14 CN CN2012101951645A patent/CN102723786A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785707A (en) * | 2005-12-09 | 2006-06-14 | 清华大学 | Fuel battery automobile mixed power system using super capacity as auxiliary power device |
| CN1948045A (en) * | 2006-11-15 | 2007-04-18 | 北京交通大学 | Driving control system for mine electric vehicles |
| CN202260482U (en) * | 2011-10-12 | 2012-05-30 | 扬州华泰电子有限公司 | Direct-current feed type energy saving device for motor |
| CN202634086U (en) * | 2012-06-14 | 2012-12-26 | 扬州华泰电子有限公司 | Energy-saving device of direct-current feed-type motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |