CN104953607A - Active energy-regenerative type electric energy quality generation device - Google Patents
Active energy-regenerative type electric energy quality generation device Download PDFInfo
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- CN104953607A CN104953607A CN201410112417.7A CN201410112417A CN104953607A CN 104953607 A CN104953607 A CN 104953607A CN 201410112417 A CN201410112417 A CN 201410112417A CN 104953607 A CN104953607 A CN 104953607A
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Abstract
The invention relates to an active energy-regenerative type electric energy quality generation device. The device is connected to a power supply system in parallel. The generation device comprises an electric energy quality generation end, an active energy-regenerative end and an energy storage circuit, wherein the direct-current side of the electric energy quality generation end and the direct-current side of the active energy-regenerative end are connected to the energy storage circuit in parallel; the alternating-current side of the electric energy quality generation end and the alternating-current side of the active energy-regenerative end are connected to the power supply system in parallel. Compared with the prior art, the generation device disclosed by the invention has the advantages of being energy-saving, stable in running, and the like.
Description
Technical field
The present invention relates to a kind of quality of power supply generating means, especially relate to a kind of meritorious energy regenerative type quality of power supply generating means.
Background technology
Three-phase four-wire system is topmost supply power mode in low-voltage network, and the power consumption equipment in power distribution network is mostly based on single-phase load.Commercial power is many with inductive load, and resistive and perceptual mixing in civilian electricity consumption, based on resistive.Due to power consumption equipment asynchronism, transformer nearly all runs under three-phase imbalance state.
And have in power consumption equipment and much can produce high order harmonic component, positive and negative sequence high order harmonic component can be cancelled out each other at the neutral line, and zero sequence high order harmonic component can superpose at the neutral line, thus make neutral line high order harmonic component very large, high order harmonic component can produce electrical network and transformer and have a strong impact on, the probability greatly increasing line loss and damage electrical network, transformer and power consumption equipment.And inductive load and neutral point drift can make transformer efficiency factor reduce, greatly reduce the efficiency of transformer.
Therefore carry out the quality of power supply to using electricity system to simulate, thus realize compensation further and become extremely important, existing quality of power supply generation end can simulate power utilization environment, but the existing quality of power supply occurs, and end is general adopts pure inversion generating means, this pure inversion generating means can not produce meritorious, need to use external load case to realize gaining merit, the huge waste of electric energy can be caused.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of energy savings, stable meritorious energy regenerative type quality of power supply generating means are provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of meritorious energy regenerative type quality of power supply generating means, this device is connected in parallel in electric power system, it is characterized in that, described generating means comprises that the quality of power supply is held, meritorious energy regenerative end and accumulator, the DC side of end occurs the described quality of power supply DC side and meritorious energy regenerative end is connected in parallel on accumulator respectively, and the AC of end occurs the described quality of power supply AC and meritorious energy regenerative end is connected in parallel in electric power system respectively.
End occurs the described quality of power supply is three-phase full-bridge inverting circuit, and its DC side parallel is on accumulator, and AC is connected in parallel in electric power system, for exporting multiple harmonic, reactive power and active power occurs simultaneously.
Described multiple harmonic is 2 ~ 25 subharmonic.
Described meritorious energy regenerative end is three-phase full-bridge inverting circuit, and its DC side parallel is on accumulator, and AC is connected in parallel in electric power system, is fed back in electric power system for the meritorious energy that the quality of power supply is occurred for end generation or absorption by inverting again.
Described accumulator is formed by multiple storage capacitor successively serial or parallel connection.
Compared with prior art, the present invention has the following advantages:
1, energy savings, what end occurred the quality of power supply can by arranging the quality of power supply (meritorious, idle, harmonic wave etc.) simulating power utilization environment completely, and meritorious energy regenerative end can the gaining merit of feedback sink, and can not cause the waste of the energy.
2, stable, the positive and negative parallel connection of DC side of two groups of inverter circuits shares same group of DC energy storage electric capacity, the quality of power supply occur end and meritorious energy regenerative end in parallel with electric power system, structure like this forms a loop, meritorious energy absorption is output again, therefore the whole device conservation of energy (2 ~ 25 subharmonic are idle), can stable operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of meritorious energy regenerative type quality of power supply generating means, this device is connected in parallel in electric power system 4, described generating means comprises quality of power supply generation end 1, meritorious energy regenerative end 2 and accumulator 3, the DC side of described quality of power supply generation end 1 and the DC side of meritorious energy regenerative end 2 are connected in parallel on accumulator 3 respectively, and the AC of described quality of power supply generation end 1 and the AC of meritorious energy regenerative end 2 are connected in parallel in electric power system 4 respectively.
Described quality of power supply generation end 1 is three-phase full-bridge inverting circuit, and its DC side parallel is on accumulator 3, and AC is connected in parallel in electric power system 4, for exporting 2 ~ 25 subharmonic, reactive power and active power occurs simultaneously.Described meritorious energy regenerative end 2 is three-phase full-bridge inverting circuit, and its DC side parallel is on accumulator 3, and AC is connected in parallel in electric power system 4, is fed back in electric power system for the meritorious energy that the quality of power supply is occurred for end generation or absorption by inverting again.
Described accumulator 3 is formed by multiple storage capacitor successively serial or parallel connection.
What end occurred for the quality of power supply of the present invention can by arranging the quality of power supply (meritorious, idle, harmonic wave etc.) simulating power utilization environment completely, and meritorious energy regenerative end can the gaining merit of feedback sink, and can not cause the waste of the energy.
Claims (5)
1. a meritorious energy regenerative type quality of power supply generating means, this device is connected in parallel in electric power system, it is characterized in that, described generating means comprises that the quality of power supply is held, meritorious energy regenerative end and accumulator, the DC side of end occurs the described quality of power supply DC side and meritorious energy regenerative end is connected in parallel on accumulator respectively, and the AC of end occurs the described quality of power supply AC and meritorious energy regenerative end is connected in parallel in electric power system respectively.
2. one according to claim 1 is gained merit energy regenerative type quality of power supply generating means, it is characterized in that, end occurs the described quality of power supply is three-phase full-bridge inverting circuit, its DC side parallel is on accumulator, AC is connected in parallel in electric power system, for exporting multiple harmonic, there is reactive power and active power simultaneously.
3. one according to claim 2 is gained merit energy regenerative type quality of power supply generating means, and it is characterized in that, described multiple harmonic is 2 ~ 25 subharmonic.
4. one according to claim 1 is gained merit energy regenerative type quality of power supply generating means, it is characterized in that, described meritorious energy regenerative end is three-phase full-bridge inverting circuit, its DC side parallel is on accumulator, AC is connected in parallel in electric power system, is fed back in electric power system for the meritorious energy that the quality of power supply is occurred for end generation or absorption by inverting again.
5. one according to claim 1 is gained merit energy regenerative type quality of power supply generating means, and it is characterized in that, described accumulator is formed by multiple storage capacitor successively serial or parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112417.7A CN104953607A (en) | 2014-03-25 | 2014-03-25 | Active energy-regenerative type electric energy quality generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112417.7A CN104953607A (en) | 2014-03-25 | 2014-03-25 | Active energy-regenerative type electric energy quality generation device |
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| CN104953607A true CN104953607A (en) | 2015-09-30 |
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| CN201410112417.7A Pending CN104953607A (en) | 2014-03-25 | 2014-03-25 | Active energy-regenerative type electric energy quality generation device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251562A (en) * | 2008-03-04 | 2008-08-27 | 东南大学 | Energy feeding type electrical energy mass perturbance generating device |
| US20110291479A1 (en) * | 2010-06-01 | 2011-12-01 | Samsung Sdi Co., Ltd. | Energy storage system and method of controlling the same |
| CN202455088U (en) * | 2012-01-12 | 2012-09-26 | 中电电气（南京）太阳能研究院有限公司 | Peak cutting and valley filling interactive miniature electric power system for priority access of new energy resources |
| CN202678982U (en) * | 2012-06-13 | 2013-01-16 | 河南省电力公司郑州供电公司 | Grid-connected solar photovoltaic power generation system |
| CN202772598U (en) * | 2012-05-18 | 2013-03-06 | 北京睿能世纪科技有限公司 | Power generation system |
| CN203883486U (en) * | 2014-03-25 | 2014-10-15 | 上海利思电气有限公司 | Active energy feedback type electric energy quality generation device |
-
2014
- 2014-03-25 CN CN201410112417.7A patent/CN104953607A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251562A (en) * | 2008-03-04 | 2008-08-27 | 东南大学 | Energy feeding type electrical energy mass perturbance generating device |
| US20110291479A1 (en) * | 2010-06-01 | 2011-12-01 | Samsung Sdi Co., Ltd. | Energy storage system and method of controlling the same |
| CN202455088U (en) * | 2012-01-12 | 2012-09-26 | 中电电气（南京）太阳能研究院有限公司 | Peak cutting and valley filling interactive miniature electric power system for priority access of new energy resources |
| CN202772598U (en) * | 2012-05-18 | 2013-03-06 | 北京睿能世纪科技有限公司 | Power generation system |
| CN202678982U (en) * | 2012-06-13 | 2013-01-16 | 河南省电力公司郑州供电公司 | Grid-connected solar photovoltaic power generation system |
| CN203883486U (en) * | 2014-03-25 | 2014-10-15 | 上海利思电气有限公司 | Active energy feedback type electric energy quality generation device |
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Application publication date: 20150930 |
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