CN201418036Y - New high-efficiency special-demand power supply circuit - Google Patents
New high-efficiency special-demand power supply circuit Download PDFInfo
- Publication number
- CN201418036Y CN201418036Y CN2009200686025U CN200920068602U CN201418036Y CN 201418036 Y CN201418036 Y CN 201418036Y CN 2009200686025 U CN2009200686025 U CN 2009200686025U CN 200920068602 U CN200920068602 U CN 200920068602U CN 201418036 Y CN201418036 Y CN 201418036Y
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- Prior art keywords
- power supply
- new
- energy
- power
- supply circuit
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- Expired - Lifetime
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- 238000004146 energy storage Methods 0.000 description 8
- 230000004075 alteration Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Inverter Devices (AREA)
Abstract
The utility model relates to a new-type high-efficiency specially-required power supply circuit, comprising an AC/DC rectifier, a DC/AC inverter, a new energy resource access unit, the AC/DC rectifieris connected with the DC/AC inverter by a DC_Bus, the new energy resource access unit is accessed to the circuit by the DC_Bus. Compared with the prior art, the new-type high-efficiency specially-required has the functional characteristics that the power supplying reliability is high, the power supplying quality is good, and the requirements of multiple users are met and has the advantages that the harmonious wave pollution in a power system and the parallel compensation equipment resonance in the power system are inhibited and the like.
Description
Technical field
The utility model relates to new and effective " special procuring " power supply unit relates in particular to new and effective special-procurement power supply circuit.
Background technology
At present, because there are bigger difference in the supply frequency of various countries' (or each is intercontinental) and voltage levvl, and each area also exists certain difference to the power stability and the power supply quality of power supply, along with closing on day by day of the Shanghai 2010 World Fair, according to the difference (various device has different tolerance limits to the power supply reliability and the quality of power supply) that the exhibition equipment in various countries requires the power supply reliability and the power supply quality of power supply, this makes the powerup issue of each country museum become distinct issues.
Meanwhile, because come into operation (as the frequency control equipment and the arc furnace etc.) of a large amount of nonlinear-loads and impact load, the alternating current input power supplying electric current exists a large amount of harmonic waves and reactive power demand, this is with the safe operation and the economical operation of serious harm low-voltage distribution system, increase the line loss of distribution system, this will have influence on " save energy and reduce the cost " realization of index of my low voltage power distribution network.
In addition, a large amount of critical load center (for example bank, hospital etc.) is owing to adopt a large amount of nonlinear-loads (computer, desk lamp with dimmer switch etc.), make the distribution line quality of power supply seriously descend, meanwhile the main power consumption equipment of the part of these loads (data center, measuring equipment) is very harsh to the requirement of the quality of power supply, answer this when considering how to avoid harmonic current that electrical network is impacted, also will consider the influence how the electrical network power quality problem moves precision equipment.
In addition, certain customers have adopted novel energy generating equipment (solar energy and wind energy etc.) voluntarily, in order to make full use of new forms of energy, design requirement is after fully satisfying the customer charge demand, the part electric energy should feed back to supply network, therefore adopt novel " special " power supply unit of any topological structure can satisfy new forms of energy Access Network and user's power demands simultaneously, become an important research content.
Above-mentioned numerous actual condition illustrated, is an important comprehensive study content about improving the power supply reliability and the power supply quality of power supply, effectively reducing technology such as distribution line power loss, new forms of energy and energy storage device Access Network and " specific demand " power supply service.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the defective that above-mentioned prior art exists, a kind of new and effective special-procurement power supply circuit simple in structure to be provided.
The purpose of this utility model can be achieved through the following technical solutions: new and effective special-procurement power supply circuit, it is characterized in that, this circuit comprises AC/DC rectifier, DC/AC inverter, new forms of energy access unit, described AC/DC rectifier, DC/AC inverter connect by DC_Bus, and described new forms of energy access unit is by the DC_Bus place in circuit.
Described new forms of energy access unit is connected with solar energy, wind energy or accumulate station.
Described AC/DC rectifier is connected with electrical network.
Described DC/AC inverter is connected with the user.
Compared with prior art, the utlity model has power supply reliability height, good, the functional characteristics that satisfies multi-user and many demands of the power supply quality of power supply, and can suppress advantages such as Harmonious Waves in Power Systems pollution, electric power system shunt compensation equipment resonance.
Description of drawings
Fig. 1 is the schematic diagram of the new and effective special-procurement power supply circuit of the utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is described further.
As shown in Figure 1, the schematic diagram of the new and effective special-procurement power supply circuit of the utility model, be divided into four parts: PWM rectifying part (AC/DC), PWM inversion part (DC/AC), dc energy storage part and new forms of energy and energy storage device insert part, be AC/DC rectifier, DC/AC inverter, new forms of energy access unit, described AC/DC rectifier, DC/AC inverter connect by DC_Bus, and described new forms of energy access unit inserts DC_Bus.
(1) PWM rectifying part (AC/DC)
The PWM rectifying part is born whole inverter powers (i.e. Zhuan Zhi rated power).This PWM rectifying part have to electrical network do not have impact, no-harmonic wave pollution, power factor for greater than 0.9, functional characteristics such as electrical network feedback electric energy.
This part is by the harmonic content and the reactive power loss of the main power inverting partial rectification electric current of identification, utilize the waveform of high-frequency PWM modulation power switch element dynamic adjustments PWM rectifying part input current, make its waveform near with the synchronous sinusoidal waveform of voltage, make that finally the power factor of PWM rectification side of new and effective " special procuring " power supply unit is 1 and the harmonic content THD (I)＜5% of rectification side output current, thereby avoid power-supply system is caused harmonic pollution, effectively suppressed the adverse effect of inverter, from truly realizing the notion of " green " power rectification to the power-supply system quality of power supply.
In addition, this part realizes the purpose (or being referred to as generator function) to supply network feedback electric energy by adjusting its output voltage merit angle.
The PWM rectifying part adopts high-frequency insulation grid bipolar transistors (IGBT) as commutation components, and topological structure adopts complete controlled three phase rectifier full bridge structure.
(2) PWM inversion part (DC/AC)
Whole power (i.e. Zhuan Zhi rated power) of new and effective " special procuring " power supply unit are partly born in the PWM inversion.This part has provides functional characteristics such as " special procuring " power supply (power supply plans of different demands), the high quality of power supply, energy can feed back to the user.
The high frequency spatial vector control strategy is partly adopted in the PWM inversion, effectively reduce the aberration rate of this part inverter output voltage, further reduce the output voltage aberration rate of this inversion part simultaneously by the mode of introducing the outlet side filter, and finally make output voltage aberration rate THD (U)＜5%, really realize the purpose of the high power supply reliability and the high quality of power supply.
In addition, if the load (ascent stage needs electric energy, decline stage feedback electric energy) of elevator class is arranged in the load, this inversion part will realize the absorption function of feedback energy by PWM rectification pattern, and present electric energy by the PWM rectifying part to electrical network.
The PWM inversion partly adopts high-frequency insulation grid bipolar transistor (IGBT) as commutation components, and topological structure adopts complete controlled three-phase inversion full bridge structure.
(3) dc energy storage part
The dc energy storage part mainly plays the dc voltage supporting role and part is fed back the power storage function.
(4) new forms of energy and energy storage device insert part (scheme)
The dc bus of design standard (DC_Bus) interface is for other new forms of energy (wind energy, solar energy, mechanical energy etc.) and energy storage station (sodium-sulphur battery, super capacitor etc.) insert public electric wire net or provide a suitable approach to user's power supply.
This part can be presented energy to electric power system by the PWM rectifying part on the one hand; Can carry out quick charge to the energy storage station by DC interface on the other hand.
Equally, this part adopts high-frequency insulation grid bipolar transistors (IGBT) as commutation components, and topological structure adopts the Buck-Boost structural circuit.
Claims (4)
1. new and effective special-procurement power supply circuit, it is characterized in that, this circuit comprises AC/DC rectifier, DC/AC inverter, new forms of energy access unit, and described AC/DC rectifier, DC/AC inverter connect by DC Bus, and described new forms of energy access unit is by DC Bus place in circuit.
2. new and effective special-procurement power supply circuit according to claim 1 is characterized in that, described new forms of energy access unit is connected with solar energy, wind energy or accumulate station.
3. new and effective special-procurement power supply circuit according to claim 1 is characterized in that, described AC/DC rectifier is connected with electrical network.
4. new and effective special-procurement power supply circuit according to claim 1 is characterized in that, described DC/AC inverter is connected with the user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200686025U CN201418036Y (en) | 2009-03-09 | 2009-03-09 | New high-efficiency special-demand power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200686025U CN201418036Y (en) | 2009-03-09 | 2009-03-09 | New high-efficiency special-demand power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201418036Y true CN201418036Y (en) | 2010-03-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200686025U Expired - Lifetime CN201418036Y (en) | 2009-03-09 | 2009-03-09 | New high-efficiency special-demand power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201418036Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650664A (en) * | 2011-08-30 | 2012-08-29 | 广西南宁金络资讯科技有限公司 | Self-adaption open energy source system experiment platform |
| CN102811001A (en) * | 2012-08-20 | 2012-12-05 | 华为技术有限公司 | Method, device and photovoltaic power generation system for controlling photovoltaic power generation device |
| CN105703472A (en) * | 2016-04-01 | 2016-06-22 | 浪潮电子信息产业股份有限公司 | Novel photovoltaic power supply data center |
| CN112787353A (en) * | 2021-01-25 | 2021-05-11 | 清华大学 | Hybrid flexible power supply system of alternating current electric arc furnace and control method thereof |
| CN115004858A (en) * | 2019-12-06 | 2022-09-02 | 达涅利自动化有限公司 | Installation for melting and/or heating metallic materials and method for providing the same with electric power |
-
2009
- 2009-03-09 CN CN2009200686025U patent/CN201418036Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650664A (en) * | 2011-08-30 | 2012-08-29 | 广西南宁金络资讯科技有限公司 | Self-adaption open energy source system experiment platform |
| CN102811001A (en) * | 2012-08-20 | 2012-12-05 | 华为技术有限公司 | Method, device and photovoltaic power generation system for controlling photovoltaic power generation device |
| CN102811001B (en) * | 2012-08-20 | 2015-07-29 | 华为技术有限公司 | Control the method for photovoltaic power generation apparatus, equipment and photovoltaic generating system |
| CN105703472A (en) * | 2016-04-01 | 2016-06-22 | 浪潮电子信息产业股份有限公司 | Novel photovoltaic power supply data center |
| CN115004858A (en) * | 2019-12-06 | 2022-09-02 | 达涅利自动化有限公司 | Installation for melting and/or heating metallic materials and method for providing the same with electric power |
| CN112787353A (en) * | 2021-01-25 | 2021-05-11 | 清华大学 | Hybrid flexible power supply system of alternating current electric arc furnace and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA SHANGHAI JIULONG E Free format text: FORMER OWNER: SHANGHAI ZHONGQU ENERGY-SAVING TECHNOLOGY CO. LTD. Effective date: 20121210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121210 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Patentee after: Shanghai Electric Power Corporation Patentee after: State Grid Corporation of China Patentee after: SHANGHAI JIULONG ENTERPRISE MANAGEMENT CONSULTING CO., LTD. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Patentee before: Shanghai Electric Power Corporation Patentee before: Shanghai Zhongqu Electric Energy Saving Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |