CN203026945U - Energy-saving device for absorbing harmonic waves in power grid - Google Patents
Energy-saving device for absorbing harmonic waves in power grid Download PDFInfo
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- CN203026945U CN203026945U CN2012202779505U CN201220277950U CN203026945U CN 203026945 U CN203026945 U CN 203026945U CN 2012202779505 U CN2012202779505 U CN 2012202779505U CN 201220277950 U CN201220277950 U CN 201220277950U CN 203026945 U CN203026945 U CN 203026945U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses an energy-saving device for absorbing harmonic waves in a power grid. The energy-saving device comprises a cabinet body, a three-phase rectifier bridge, a three-phase circuit breaker QF, a three-phase contactor KM, a three-phase electric reactor and secondary winding, a three-phase capacitor C, a storage battery GB, an inverter DC/AC device, and loads. The energy-saving device is characterized in that the three-phase circuit breaker QF, three-phase contactor KM, the single-phase inverter DC/AC device and the single-phase storage battery GB are fixedly installed on the upper frame of the cabinet body, the three-phase rectifier bridge is fixedly installed on the middle portion of the cabinet body, the three-phase electric reactor and secondary winding is fixedly installed on the lower portion of the cabinet body; in the device, the three-phase electric reactor and secondary winding adopts an integrated design, so the three-phase electric reactor and secondary winding not only can be used as an electric reactor and but also can be used as a transformer, so that the energy of the harmonic waves can be converted effectively. The harmonic wave energy which is partially wasted in the power grid is converted into energy which can be used, so the recycling of power grid harmonic wave energy can be realized; and but also the three-phase electric reactor and secondary winding is made into a standard assembly, so advantages of easy production, easy installation and easy maintenance can be realized.
Description
Technical field
The utility model relates to a kind of electrical network energy saver, specifically a kind of energy saver that absorbs harmonic wave in electrical network.
Background technology
Before the utility model, the processing method of harmonic wave is had: 1, passive filtering, i.e. the RLC branch road that custom-designed electric capacity, reactance, resistance series connection forms absorbs harmonic wave; 2, active power filtering, namely with the content of single-chip microcomputer detection harmonic wave, the energy that stores by inductance absorbs harmonic wave or compensates, all there is following problem in above method: 1.: do not possess versatility, at every turn all will be from new design, the production cycle is long, can not carry out standardized production; 2. the harmonic energy in electrical network is not fully utilized, and causes the harmonic energy expense.
Summary of the invention
In order to overcome the deficiency of existing mains by harmonics recovery technology, the utility model provides a kind of energy saver that absorbs harmonic wave in electrical network, and this device can change into utilizable electric energy to the harmonic energy of part waste in electrical network, has realized the recycling of harmonic energy.
the technical solution adopted in the utility model is: a kind of energy saver that absorbs harmonic wave in electrical network comprises that cabinet, three-phase commutation bridge, three-phase breaker QF, three-phase contactor KM, three-phase reactor add secondary winding, three-phase capacitor C, storage battery GB, inversion DC/AC device and load, it is characterized in that: with bolt, fixedly three-phase breaker QF is installed respectively on the framework on cabinet top, three-phase contactor KM, storage battery GB and inversion DC/AC device, fixedly three-phase commutation bridge is installed with bolt in the middle part of cabinet, with bolt, three-phase reactor is added on the under(-)chassis that secondary winding is fixed on cabinet, the first-phase L1 of 380V three phase mains, second-phase L2, the end of incoming cables of third phase L3 and three-phase breaker QF is connected in parallel with wire, the leading-out terminal of three-phase breaker QF is connected in parallel with wire and three-phase contactor KM end of incoming cables, the leading-out terminal of three-phase contactor KM and three-phase reactor add the secondary winding end of incoming cables and are connected in parallel by wire, the leading-out terminal that three-phase reactor adds secondary winding is connected in parallel by the end of wire and three-phase capacitor C, the other end of three-phase capacitor C wire short circuit, three coil one ends that three-phase reactor adds secondary winding are connected with the input of three-phase commutation bridge, three coil other ends that three-phase reactor adds secondary winding are connected with three-phase commutation bridge after with the wire short circuits, three-phase commutation bridge is the output single-phase power supply after over commutation, three-phase commutation bridge is connected in parallel by wire and inversion DC/AC device, inversion DC/AC device is connected in parallel by wire and the second load, storage battery GB is connected in parallel on single phase circuit between three-phase commutation bridge and inversion DC/AC device.
What also be connected in parallel on the utility model 380V three phase mains (L1, L2, L3) has user's three-phase rectifier, and user's three-phase rectifier output single-phase power supply and the first load (middle frequency furnace) are connected in parallel by wire.
The beneficial effects of the utility model are: a kind of energy saver that absorbs harmonic wave in electrical network, this device one is that three-phase reactor and secondary winding design is as a whole, namely can be used as reactor and use, can make again transformer and use, can be effectively the power conversion of harmonic wave out.The harmonic energy of part waste in electrical network is changed into utilizable electric energy, realized the recycling of harmonic energy.The 2nd, three-phase reactor is added secondary winding make standard package, be convenient to produce installation and maintenance.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the electrical schematic diagram of Fig. 1.
In the drawings 1, cabinet, 2, three-phase reactor adds secondary winding, 3, three-phase commutation bridge, 4, three-phase rectifier, 5, the first load, the 6, second load, 7, upper lower cabinet door, DC/AC, inverter, QF, three-phase breaker, KM, three-phase contactor, GB, storage battery, C, three-phase capacitor.
Embodiment
With reference to the utility model accompanying drawing 1, accompanying drawing 2 embodiment, the below is described further: with bolt, fixedly three-phase breaker QF, three-phase contactor KM, inversion DC/AC device and storage battery GB are installed respectively on the framework on cabinet 1 top.Fixedly three-phase commutation bridge 3 is installed with bolt in the middle part of cabinet 1, with bolt, three-phase reactor is added on the under(-)chassis that secondary winding 2 is fixed on cabinet 1 upper-lower door 7 and cabinet employing chain connection.the first-phase L1 of 380V three phase mains, second-phase L2, the end of incoming cables of third phase L3 and three-phase breaker QF is connected in parallel with wire, the leading-out terminal of three-phase breaker QF is connected in parallel with wire and three-phase contactor KM end of incoming cables, the end of incoming cables that the leading-out terminal of three-phase contactor KM and three-phase reactor add secondary winding 2 is connected in parallel by wire, the leading-out terminal that three-phase reactor adds secondary winding 2 is connected in parallel by the end of wire and three-phase capacitor C, the other end of three-phase capacitor C adopts the wire short circuit, three coil one ends that three-phase reactor adds secondary winding are connected with three-phase commutation bridge 3 inputs, three coil other ends that three-phase reactor adds secondary winding are connected with three-phase commutation bridge 3 after with the wire short circuits, three-phase commutation bridge 3 is the output single-phase power supply after over commutation, three-phase commutation bridge 3 is connected in parallel by wire and inversion DC/AC device, inversion DC/AC device (comprises iron and steel by wire and the second load 6, the mine, business, casting, the equipment such as automobile) be connected in parallel, storage battery GB is connected in parallel on single phase circuit between three-phase commutation bridge and inversion DC/AC device.
On the 380V of the utility model accompanying drawing 2 three phase mains (L1, L2, L3), the user's three-phase rectifier 4 in addition that adopts wire to be connected in parallel, user's three-phase rectifier 4 is the output single-phase power supply after over commutation, is connected in parallel by wire and the first load 5 (middle frequency furnace).
The utility model operation principle is: user's rectifying installation 4 provides DC source to the first load 5, the humorous wave direction electrical network feedback of generation; This programme is by three-phase breaker QF and three-phase contactor KM has generation electrical network, the three-phase reactor of harmonic wave to add secondary winding 2 and three-phase capacitor C is connected in parallel.Add secondary winding 2 and three-phase capacitor C (being combined into the LC series resonant tank) by three-phase reactor, the harmonic frequency that needs in resonance frequency and electrical network to reclaim is approached, thereby the harmonic energy that is added secondary winding 2 absorptions by three-phase reactor is transformed into DC storage in storage battery GB by three-phase commutation bridge 3, then is reverse into the reference power supply of we the conventional AC220V/50HZ that uses by inversion DC/AC device 3.
Three-phase reactor is added secondary winding 2 to the utility model and three-phase capacitor C makes standard package; Expand when being convenient to production and practical application; Three-phase reactor adds secondary winding 2 can be used as transformer, can use as reactor again, can also the power conversion of harmonic wave out, realize the recycling of standardized production and harmonic energy.
Claims (1)
1. an energy saver that absorbs harmonic wave in electrical network, comprise that cabinet, three-phase commutation bridge, three-phase breaker QF, three-phase contactor KM, three-phase reactor add secondary winding, three-phase capacitor C, storage battery GB, inversion DC/AC device and load, it is characterized in that: with bolt, fixedly three-phase breaker QF is installed respectively on the framework on cabinet top, three-phase contactor KM, storage battery GB and inversion DC/AC device, fixedly three-phase commutation bridge is installed with bolt in the middle part of cabinet, with bolt, three-phase reactor is added on the under(-)chassis that secondary winding is fixed on cabinet, the first-phase L1 of 380V three phase mains, second-phase L2, the end of incoming cables of third phase L3 and three-phase breaker QF is connected in parallel with wire, the leading-out terminal of three-phase breaker QF is connected in parallel with wire and three-phase contactor KM end of incoming cables, the leading-out terminal of three-phase contactor KM and three-phase reactor add the secondary winding end of incoming cables and are connected in parallel by wire, the leading-out terminal that three-phase reactor adds secondary winding is connected in parallel by the end of wire and three-phase capacitor C, the other end of three-phase capacitor C wire short circuit, three coil one ends that three-phase reactor adds secondary winding are connected with the input of three-phase commutation bridge, three coil other ends that three-phase reactor adds secondary winding are connected with three-phase commutation bridge after with the wire short circuits, three-phase commutation bridge is the output single-phase power supply after over commutation: three-phase commutation bridge is connected in parallel by wire and inversion DC/AC device, inversion DC/AC device is connected in parallel by wire and the second load, storage battery GB is connected in parallel on single phase circuit between three-phase commutation bridge and inversion DC/AC device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202779505U CN203026945U (en) | 2012-06-08 | 2012-06-08 | Energy-saving device for absorbing harmonic waves in power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202779505U CN203026945U (en) | 2012-06-08 | 2012-06-08 | Energy-saving device for absorbing harmonic waves in power grid |
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| Publication Number | Publication Date |
|---|---|
| CN203026945U true CN203026945U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202779505U Expired - Fee Related CN203026945U (en) | 2012-06-08 | 2012-06-08 | Energy-saving device for absorbing harmonic waves in power grid |
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| CN (1) | CN203026945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069729A (en) * | 2017-03-14 | 2017-08-18 | 上海睿源电子科技有限公司 | A kind of mains by harmonics by harmonic energy recycling eliminates circuit and method |
| CN107528319A (en) * | 2017-09-27 | 2017-12-29 | 张京伦 | A kind of electromagnetic type electric regenerative harmonic suppression apparatus |
| CN117728596A (en) * | 2024-02-08 | 2024-03-19 | 深圳市瀚强科技股份有限公司 | Harmonic energy recovery circuit and radio frequency power supply device |
-
2012
- 2012-06-08 CN CN2012202779505U patent/CN203026945U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069729A (en) * | 2017-03-14 | 2017-08-18 | 上海睿源电子科技有限公司 | A kind of mains by harmonics by harmonic energy recycling eliminates circuit and method |
| CN107528319A (en) * | 2017-09-27 | 2017-12-29 | 张京伦 | A kind of electromagnetic type electric regenerative harmonic suppression apparatus |
| CN117728596A (en) * | 2024-02-08 | 2024-03-19 | 深圳市瀚强科技股份有限公司 | Harmonic energy recovery circuit and radio frequency power supply device |
| CN117728596B (en) * | 2024-02-08 | 2024-05-10 | 深圳市瀚强科技股份有限公司 | Harmonic energy recovery circuit and radio frequency power supply device |
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| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Geng Mingming Document name: Notification to Make Rectification |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20140608 |