CN104052084A - 110 kilovolt substation micro-grid system used for large electricity consumption places - Google Patents
110 kilovolt substation micro-grid system used for large electricity consumption places Download PDFInfo
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- CN104052084A CN104052084A CN201410331738.6A CN201410331738A CN104052084A CN 104052084 A CN104052084 A CN 104052084A CN 201410331738 A CN201410331738 A CN 201410331738A CN 104052084 A CN104052084 A CN 104052084A
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- 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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Abstract
The invention discloses a 110 kilovolt substation micro-grid system used for large electricity consumption places. The system comprises a first station electric transformer, a first bus, a second station electric transformer, a second micro-grid access cabinet, an instation load, an electric automobile charging pile, a photovoltaic power generation system and a battery energy storage system, wherein the first bus is connected to the first station electric transformer through a circuit; the second micro-grid access cabinet is connected to the second station electric transformer through a circuit; the instation load is simultaneously connected to the first bus and the second micro-wave access cabinet through circuits; the electric automobile charging pile is connected to the second micro-grid access cabinet through a circuit; the photovoltaic power generation system is connected to the second micro-grid access cabinet through a circuit; the battery energy storage system is connected to the second micro-grid access cabinet through a circuit. By means of the system, a distributed power supply, various loads, a control device and an energy storage device are combined to form a unit which is single, controllable and capable of operating independently, the distributed power supply is accepted to the maximum degree, energy is saved, consumption is lowered, energy efficiency is improved, power distribution reliability is improved, the requirements of multiple users for electric energy quality are met, the overall disaster resistance capacity and the post-disaster emergency power supply capacity of the grid are improved.
Description
Technical field
The present invention relates to a kind of network system, be specifically related to a kind of 110 kv substation micro-grid systems for large-scale electricity consumption place.
Background technology
Power load constantly increases in recent years, and the drawback of traditional electrical network also shows especially gradually, and this declines the stability of operation of power networks and fail safe, and power supply quality can not get good guarantee.Operation difficulty that the large area blackout several times worldwide occurring has in succession highlighted the centralized generating of electric power system is more large, be difficult to meet the drawbacks such as the requirements at the higher level of user to the quality of power supply.For above problem, developed country begins one's study and applies multiple primary energy form in conjunction with, efficient, economic novel electric power technology---distributed power generation (Distributed Generation is called for short DG) technology as Germany, Japan, the U.S. even comprise some developing countries.
Distributed power generation, natural resources as can flexible utilization local in miniature combustion engine, wind power generation, photovoltaic generation etc., reduce environmental pollution, reduce line loss, improve the reliability of power supply, it is the important supplement of centralized single electric power system, efficiently solving large-scale power grid can not load by flexible wire, and local fault causes the problems such as large area disturbance, power failure and remote districts power supply.But distributed generation system is uncontrollable generator unit, generally take the mode of isolation to eliminate its impact on power distribution network, so just greatly reduce the usefulness of distributed power generation, weaken its advantage
[1].In order to solve the grid-connected relevant contradiction of distributed generation system, microgrid arises at the historic moment.
The rise of microgrid concept is mainly the problem solving in the grid-connected technology of bringing of extensive, diversified distributed power source, market and policy, advantage with performance distributed generation technology in economy, the energy and environment, receive distributed power source thereby maximize, better meet the requirement of power consumer to the quality of power supply and power supply reliability.
Summary of the invention
The invention provides a kind of 110 kv substation micro-grid systems for large-scale electricity consumption place, maximize and receive distributed power source, save energy and reduce the cost, improve efficiency, improve power supply reliability, meet multi-user's quality of power supply demand, improve emergency service ability after electrical network entirety anti-disaster ability and calamity.
For achieving the above object, the invention provides a kind of 110 kv substation micro-grid systems for large-scale electricity consumption place, be characterized in, this system comprises:
First stop power transformation device;
The first bus, its circuit is connected under first stop power transformation device;
Second station power transformation device;
The second microgrid access cabinet, its circuit is connected under second station power transformation device;
The internal loading of standing, its simultaneously circuit be connected under the first bus and the second microgrid access cabinet;
Electric automobile charging pile, its circuit is connected under the second microgrid access cabinet;
Photovoltaic generating system, its circuit is connected under the second microgrid access cabinet;
Battery energy storage system, its circuit is connected under the second microgrid access cabinet.
Above-mentioned station internal loading comprises power distribution equipment accessory power supply, uninterrupted power supply and the direct current system that circuit respectively connects the first bus and the second microgrid access cabinet.
Above-mentioned station internal loading circuit is connected with automatic transfer switch, and is connected to respectively the first bus and the second microgrid access cabinet by automatic transfer switch.
Under above-mentioned the first bus, circuit is connected with some circuit-lines, and by circuit-line respectively circuit connect its lower station internal loading; Under the first bus, every circuit-line is provided with the switch of control circuit break-make.
Under above-mentioned the second microgrid access cabinet, go back circuit and be connected with mains lighting supply, fan power and the air conditioner power source in station.
Above-mentioned first stop exports respectively 110 kilovolts of pressure drop to 400 volts to the first bus and the second microgrid access cabinet with power transformation device and second station power transformation device.
Above-mentioned the second microgrid access cabinet comprises circuit and is connected to the second bus and some circuit-lines that are connected under the second bus under second station power transformation device, the second bus is connected to each load by every circuit-line, is all provided with the switch of control circuit break-make on every circuit-line.
Between above-mentioned the first bus and the second bus, be connected with the block switch of often opening.
In above-mentioned the second microgrid access cabinet, the second bus is connected with becoming appliance circuit with second station by a points of common connection with some circuit-lines that are connected under the second bus.
The present invention compares for the 110 kv substation micro-grid systems in large-scale electricity consumption place and the network system of prior art, its advantage is, the present invention adopts single-trunk segmental wiring form, the first bus and the second bus section setting, power supply load and control device and energy storage device are connected under the first bus and the second bus, by distributed power source, each type load, control device and energy storage device combine, the single controlled unit that again can independent operating forming, maximize and receive distributed power source, energy-saving and cost-reducing, improve efficiency, improve power supply reliability, meet multi-user's quality of power supply demand, emergency service ability after raising electrical network entirety anti-disaster ability and calamity.
Brief description of the drawings
Fig. 1 is the circuit diagram of the present invention for the 110 kv substation micro-grid systems in large-scale electricity consumption place.
Embodiment
Below in conjunction with accompanying drawing, further illustrate specific embodiments of the invention.
As shown in Figure 1, the present invention discloses a kind of 110 kv substation micro-grid systems for large-scale electricity consumption place, this system comprises first stop power transformation device 1 and second station power transformation device 2, this first stop with power transformation device 1 and second station power transformation device 2 for 110 kilovoltages are dropped to 400 volts.
First stop is connected with the first bus 3 with 1 time circuit of power transformation device, and first stop is with being provided with the switch of controlling break-make in the circuit between power transformation device 1 and the first bus 3.The first bus 3 times circuit is connected with some circuit-lines, and by every road circuit-line respectively circuit connect its lower station internal loading, the first bus 3 and the circuit-line between each its lower station internal loading are provided with the switch of control break-make.
Second station is connected with the second microgrid access cabinet 4 with 2 times circuit of power transformation device.This second microgrid access cabinet 4 comprises circuit and is connected to some the circuit-lines that the second bus 41 under second station power transformation device 2 is connected for 41 times with the second bus, the second bus 41 is connected to each load by every circuit-line, is all provided with the switch of control circuit break-make on every circuit-line.
Subsection setup between the first bus 3 and the second bus 41, and circuit is connected with the block switch 12 of often opening.
In the second microgrid access cabinet 4, some the circuit-lines that the second bus 41 is connected for 41 times with the second bus are connected with second station power transformation device 2 circuit by a points of common connection 42.
The second microgrid access cabinet is connected with electric automobile charging pile 5, photovoltaic generating system 6, battery energy storage system 7, mains lighting supply, fan power and air conditioner power source etc. by circuit-line 4 times.Wherein electric automobile charging pile 5, photovoltaic generating system 6, battery energy storage system 7 are major parts of micro-grid system.
The internal loading of standing comprises power distribution equipment accessory power supply 8, uninterrupted power supply 9 and direct current system 10(DC cabinet), this power distribution equipment accessory power supply 8, uninterrupted power supply 9(UPS) and direct current system 10 be connected with respectively automatic transfer switch 11(ATS); Power distribution equipment accessory power supply 8, uninterrupted power supply 9(UPS) and direct current system 10 slave stations respectively draw a route inlet wire with the first bus 3 and the second bus 41, power supply after automatic transfer switch 11 switches, to ensure the power supply reliability of above-mentioned important load in station.Separately, the connection that the first bus 3 also has control circuit break-make by it has other AC load.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Read after foregoing those skilled in the art, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. for the 110 kv substation micro-grid systems in large-scale electricity consumption place, it is characterized in that, this system comprises:
First stop power transformation device;
The first bus, its circuit is connected under described first stop power transformation device;
Second station power transformation device;
The second microgrid access cabinet, its circuit is connected under described second station power transformation device;
The internal loading of standing, its simultaneously circuit be connected under described the first bus and the second microgrid access cabinet;
Electric automobile charging pile, its circuit is connected under described the second microgrid access cabinet;
Photovoltaic generating system, its circuit is connected under described the second microgrid access cabinet;
Battery energy storage system, its circuit is connected under described the second microgrid access cabinet.
2. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 1, it is characterized in that, described station internal loading comprises power distribution equipment accessory power supply, uninterrupted power supply and the direct current system that circuit respectively connects the first bus and the second microgrid access cabinet.
3. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 2, is characterized in that, described station internal loading circuit is connected with automatic transfer switch, and are connected to respectively the first bus and the second microgrid access cabinet by automatic transfer switch.
4. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 1, is characterized in that, under described the first bus, circuit is connected with some circuit-lines, and by circuit-line respectively circuit connect its lower station internal loading; Under the first bus, every circuit-line is provided with the switch of control circuit break-make.
5. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 1, is characterized in that, go back circuit and be connected with mains lighting supply, fan power and the air conditioner power source in station under described the second microgrid access cabinet.
6. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 1, it is characterized in that, described first stop exports respectively 110 kilovolts of pressure drop to 400 volts to the first bus and the second microgrid access cabinet with power transformation device and second station power transformation device.
7. the 110 kv substation micro-grid systems for large-scale electricity consumption place as described in any one claim in claim 1 to 6, it is characterized in that, described the second microgrid access cabinet comprises circuit and is connected to the second bus and some circuit-lines that are connected under the second bus under second station power transformation device, the second bus is connected to each load by every circuit-line, is all provided with the switch of control circuit break-make on every circuit-line.
8. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 7, is characterized in that, between described the first bus and the second bus, are connected with the block switch of often opening.
9. the 110 kv substation micro-grid systems for large-scale electricity consumption place as claimed in claim 7, it is characterized in that, in described the second microgrid access cabinet, the second bus is connected with becoming appliance circuit with second station by a points of common connection with some circuit-lines that are connected under the second bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410331738.6A CN104052084A (en) | 2014-07-14 | 2014-07-14 | 110 kilovolt substation micro-grid system used for large electricity consumption places |
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| CN201410331738.6A CN104052084A (en) | 2014-07-14 | 2014-07-14 | 110 kilovolt substation micro-grid system used for large electricity consumption places |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515083A (en) * | 2015-08-20 | 2016-04-20 | 樊朝晖 | Electric vehicle group charging microgrid control method supporting secure dynamic capacity-increase |
| CN105552854A (en) * | 2015-12-24 | 2016-05-04 | 无锡信大气象传感网科技有限公司 | Safety automatic switching system for transformer substation connected to multiple power supplies |
| CN107979167A (en) * | 2017-12-14 | 2018-05-01 | 深圳供电局有限公司 | A kind of substation's emergency power supply system |
| CN113972677A (en) * | 2021-10-29 | 2022-01-25 | 江苏慧智能源工程技术创新研究院有限公司 | Cooperative distribution control system and method based on intelligent park power system |
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| EP2642633A1 (en) * | 2010-11-19 | 2013-09-25 | Hitachi, Ltd. | Control device for electrical storage device, electrical storage device, and method for charging/discharging electrical storage device |
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| CN203674797U (en) * | 2014-01-22 | 2014-06-25 | 上海电力设计院有限公司 | Station power microgrid main wiring system |
| CN204046192U (en) * | 2014-07-14 | 2014-12-24 | 国网上海市电力公司 | For the 110 kv substation micro-grid systems in large-scale electricity consumption place |
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2014
- 2014-07-14 CN CN201410331738.6A patent/CN104052084A/en active Pending
Patent Citations (6)
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| EP2642633A1 (en) * | 2010-11-19 | 2013-09-25 | Hitachi, Ltd. | Control device for electrical storage device, electrical storage device, and method for charging/discharging electrical storage device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515083A (en) * | 2015-08-20 | 2016-04-20 | 樊朝晖 | Electric vehicle group charging microgrid control method supporting secure dynamic capacity-increase |
| CN105552854A (en) * | 2015-12-24 | 2016-05-04 | 无锡信大气象传感网科技有限公司 | Safety automatic switching system for transformer substation connected to multiple power supplies |
| CN107979167A (en) * | 2017-12-14 | 2018-05-01 | 深圳供电局有限公司 | A kind of substation's emergency power supply system |
| CN113972677A (en) * | 2021-10-29 | 2022-01-25 | 江苏慧智能源工程技术创新研究院有限公司 | Cooperative distribution control system and method based on intelligent park power system |
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Application publication date: 20140917 |
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