CN104701875B - Distributed power grid power distribution system - Google Patents
Distributed power grid power distribution system Download PDFInfo
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- CN104701875B CN104701875B CN201510157216.3A CN201510157216A CN104701875B CN 104701875 B CN104701875 B CN 104701875B CN 201510157216 A CN201510157216 A CN 201510157216A CN 104701875 B CN104701875 B CN 104701875B
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- power
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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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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A distributed power grid power distribution system comprises a common power supply, a power grid and electric devices. The common power supply can supply power to the electric devices through the power grid. Each electric device comprises an energy storage unit, the energy storage units can provide power for the electric devices, and the electric devices enable the energy storage units to be charged or provide power for the power grid according to changes of instantaneous output power of the common power supply.
Description
Technical field
The present invention relates to a kind of network distribution system, especially relate to a kind of distributed power grid distribution system.
Background technology
In general, the main power source of existing electrical network is conventional energy resource, such as coal-fired station, combustion gas fire
Power power plant or nuclear plant, produce electric power by these power plants, and electric power is conveyed to consumer by power distribution network.These
The electric energy of energy resource supply is more stable, and can easily adjust to meet consumer demand, meets with regard to this electricity simultaneously
The standard of energy, such as rated voltage level and rated frequency level.But, these conventional energy resources have the disadvantage that including can not be again
The problems such as life, environmental pollution and possible nuclear energy leak.
With the growing interest to environmental conservation for the people, increasing new forms of energy are used to provide for electric power, the such as sun
Power distribution network can be connected to wind-power electricity generation.The advantage of these new forms of energy is reproducible, and additionally aids minimizing adversely
The discharge of the greenhouse gases of impact weather conditions.But, the shortcoming of these energy is that output is unstable, and its output may phase
To in shorter time interval, change in the larger context, thus leading to the impact for electrical network power transmission and distribution ability.
In prior art, such as in 201180020603.2 patent of invention, mainly pass through to arrange a system in power distribution network
One public power storage system, such as pumped-storage power generation station, smooth adjustment is made for output by this electric station,
Thus avoiding the impact for electrical network for these new forms of energy, this needs individually to set up a common memory system, and cost is huge.But
It is in fact, in the electrical equipment of electrical network, many electrical equipments such as electric automobile etc. all possesses energy storage units, and
These electrical equipments did not used in the most of the time.The mode of existing intelligent charge, is also only in the given time
In section, therefrom select the most favorable charging interval, be charged to the energy storage units of electrical equipment, and not fully
Energy storage units using these electrical equipments.Therefore, the present invention proposes a kind of distributed power grid distribution system, Neng Gouchong
Divide and using the energy storage units in electrical equipment, electrical network is adjusted, thus eliminating the one-tenth setting up common memory system
This.
Content of the invention
As one aspect of the present invention, there is provided a kind of distributed power grid distribution system, including utility power, electrical network with
And electrical equipment, described utility power can be powered to electrical equipment by electrical network, and described electrical equipment includes energy stores list
Unit, described energy storage units can provide electric power to described electrical equipment；Described electrical equipment is according to described utility power
The change of instantaneous output, makes energy storage units be charged or so that energy storage units is powered to electrical network.Wherein, institute
State utility power to include providing the first power supply of stable energy output and export the unstable second source of energy.Described
First power supply includes coal-fired station, combustion gas thermal power plant or nuclear plant.Described second source includes the sun
Can power station or wind power station.
Preferably, in such scheme, described electrical equipment arranges first threshold and second threshold of energy storage units electricity
Value, when energy storage units electricity is more than first threshold, described energy storage units can be powered to electrical network；Work as energy stores
When unit electricity is less than Second Threshold, described energy storage units can not be powered to electrical network；Described first threshold is more than second
Threshold value.
Preferably, in such scheme, described electrical equipment can arrange two kinds of mode of operations, in the first mode of operation
Under, described energy storage units are to be charged as main purpose；In a second mode of operation, described energy storage units are to adjust
The instantaneous output of utility power is main purpose.
Preferably, in such scheme, in the first operational mode, the electricity of described energy storage units is less than the 3rd threshold
During value, described energy storage units are charged it is impossible to enough power to electrical network；When energy is more than three threshold values, described energy
Memory element can be powered to electrical network；Described 3rd threshold value is more than described first threshold.
Preferably, in such scheme, in a second mode of operation, as long as its electricity is more than the 4th threshold value, described energy
Memory element just can be powered to electrical network, and described 4th threshold value is less than described first threshold, and described 4th threshold value is more than institute
State Second Threshold.
Preferably, in such scheme, in a second mode of operation, when the instantaneous output of utility power is not enough,
Described electrical equipment monitors its energy storage units electricity, if its electricity is more than the 4th threshold value, described electrical equipment makes institute
State energy storage units to power to electrical network；When the instantaneous output of utility power is excessive, described electrical equipment monitors its energy
Amount memory element, if its electricity is not full of, described electrical equipment makes described energy storage units be charged.
Preferably, in such scheme, described electrical equipment also includes enumerator, and described energy storage units are in second work
When working under operation mode, described enumerator is used for the impulse electricity number of times of described energy storage units is counted.
Preferably, in such scheme, also include service rating unit, for electrical equipment in a second mode of operation
For electrical network adjust contribution degree evaluate.
Preferably, in such scheme, the evaluating of described service rating unit includes, initial quantity of electricity qs, terminates electricity
Qf, impulse electricity frequency n and working time s in this mode.
Preferably, in such scheme, described contribution degree c is calculated by following formula, c=p × s × n × v-(qf-qs), wherein p
Rated power when charging for described energy storage units, v is adjustment factor, when c is less than zero, c is set to zero.
Preferably, in such scheme, also include Charging Detail Record unit, when described electrical equipment works in the first operation mode,
Described Charging Detail Record unit judges to described contribution degree c value, determines the final charging expense of user according to described contribution degree c value
(q-c) × m, wherein q are the actual charge volume of electrical equipment, and m is unit charge volume expense.
Brief description
Fig. 1 is the schematic diagram of the distributed power grid distribution system of the present invention.
Fig. 2 is the schematic diagram of the electrical equipment of the present invention.
Specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Referring to Fig. 1, the distributed power grid distribution system of the present invention includes utility power, electrical network 200 and electrical equipment.Public
Include conventional power plant 101 and generation of electricity by new energy factory 102 with power supply, wherein conventional energy resource power plant 101 can provide and stablize
Electric power output, can be such as coal-fired station, combustion gas thermal power plant or nuclear plant, generation of electricity by new energy factory
102 use renewable energy power generation, and its electric power output is unstable, and it can be solar power plant or wind power plant.Public
Can be powered to electrical equipment by electrical network 200 with power supply.Electrical equipment includes the electrical equipment with energy storage units
30, such as electric automobile, these electrical equipments additionally it is possible to be interacted with electrical network, are powered to electrical network in addition to can using electric power；And
Other electrical equipments 40, such as electric light etc., only can use electric power.Electrical equipment 30 is according to generation of electricity by new energy in utility power
The change of the instantaneous output of factory 102, makes energy storage units be charged or so that energy storage units is powered to electrical network.
As shown in Fig. 2 including energy storage units 301, it can carry out charging and provide to electrical network electrical equipment 30
Electric power；Electricity monitoring unit 302, it can carry out monitor in real time to the electricity of energy storage units 301；Enumerator 301, its energy
Enough discharge and recharge number of times to energy storage units count；Service rating unit 304, it can be adjusted to electrical network to electrical equipment
The contribution degree of section is evaluated；Charging Detail Record unit 305, it can determine the final charging expense of user.Electrical equipment 30 arranges energy
The first threshold of amount memory element 301 electricity and Second Threshold, for example can arrange first threshold is 80% electricity, Second Threshold
For 30% electricity, when energy storage units 301 electricity is more than 80%, energy storage units can be powered to electrical network；Work as energy
When memory element electricity 301 is less than 30%, energy storage units 301 can not be powered to electrical network.
Electrical equipment 30 can arrange two kinds of mode of operations, under the first charge mode, Yong Huke by setup module
Car can be used at any time, energy storage units 301 are to be charged as main purpose；Under second shaping modes, user may be long-time
Without car, energy storage units 301 with adjust utility power instantaneous output as main purpose.
Under charge mode, because user may use car at any time, the electricity of energy storage units 301 is less than the 3rd threshold value
When, such as 90% electricity, energy storage units 301 are charged it is impossible to enough power to electrical network；When electricity is more than 90%, energy
Amount memory element 301 can be powered to electrical network.Under shaping modes, it is mainly used in adjusting grid power, as long as its electricity is big
In the 4th threshold value, such as 60%, energy storage units 301 just can be powered to electrical network.Under shaping modes, when utility power
When instantaneous output is not enough, electrical equipment prison 30 surveys its energy storage units 301 electricity by electricity monitoring unit 302, such as
Really its electricity is more than 60%, then electrical equipment 30 enables energy storage units 301 to power to electrical network, and electrical network is according to energy stores
The charge condition of device is so as to power to other neighbouring electrical equipments；When the instantaneous output of utility power is excessive, electricity consumption
Equipment 30 monitors its energy storage units 301, if its electricity is not full of, electrical equipment 30 makes energy storage units 301
It is charged.
Under shaping modes, enumerator 301 counts to the impulse electricity number of times of energy storage units 301.Service rating
Unit 304, evaluates for the contribution degree adjusting for electrical network under shaping modes to electrical equipment 30.Service rating list
The evaluating of unit 304 includes, initial quantity of electricity qs, terminates electricity qf, impulse electricity frequency n and working time in this mode
s.Wherein, contribution degree c is calculated by following formula, c=p × s × n × v-(qf-qs), wherein p is that described energy storage units charge
When rated power, v be adjustment factor, when c be less than zero when, c is set to zero.
Electrical equipment 30 also includes Charging Detail Record unit 305, when electrical equipment 30 works under charge mode, Charging Detail Record unit 305
Contribution degree c value is judged, determines that according to described contribution degree c value final charging expense (the q-c) × m of user, wherein q are
The actual charge volume of electrical equipment, m is unit charge volume expense.
According to specific exemplary embodiment, invention has been described herein.Those skilled in the art is come
Say carry out without departing from the scope of the invention suitable replacement or modification will be apparent from.Exemplary embodiment is only
It is illustrative, rather than limiting the scope of the present invention, the scope of the present invention be defined by the appended.
Claims (6)
1. a kind of distributed power grid distribution system, including utility power, electrical network and electrical equipment, described utility power can be led to
Cross electrical network to power to electrical equipment, described electrical equipment includes energy storage units, described energy storage units can be given described
Electrical equipment provides electric power；It is characterized in that: the change of the instantaneous output according to described utility power for the described electrical equipment,
So that energy storage units is charged or so that energy storage units is powered to electrical network；Described electrical equipment arranges energy stores list
The first threshold of first electricity and Second Threshold, when energy storage units electricity is more than first threshold, described energy storage units
Can power to electrical network；When energy storage units electricity is less than Second Threshold, described energy storage units can not be to electrical network
Power supply；Described first threshold is more than Second Threshold；Described electrical equipment can arrange two kinds of mode of operations, in the first charging mould
Under formula, user may use car at any time, and described energy storage units are to be charged as main purpose；Under second shaping modes, use
Family may for a long time without car, described energy storage units with adjust utility power instantaneous output as main purpose；?
Under the first charge mode: when the electricity of described energy storage units is less than three threshold values, described energy storage units are filled
Electricity is it is impossible to enough power to electrical network；When electricity is more than three threshold values, described energy storage units can be powered to electrical network；Described
3rd threshold value is more than described first threshold.
2. distributed power grid distribution system according to claim 1 it is characterised in that: under second shaping modes, only
To be more than the 4th threshold value by its electricity, described energy storage units just can power to electrical network, described 4th threshold value is less than described the
One threshold value, and described 4th threshold value is more than described Second Threshold.
3. distributed power grid distribution system according to claim 2 it is characterised in that: described utility power includes providing steady
Surely measure the first power supply of output and the second source that output energy is unstable.
4. distributed power grid distribution system according to claim 3 it is characterised in that: described first power supply includes coal-fired fire
Power power plant, combustion gas thermal power plant or nuclear plant.
5. distributed power grid distribution system according to claim 4 it is characterised in that: described second source includes solar energy
Power station or wind power station.
6. distributed power grid distribution system according to claim 5 it is characterised in that: described electrical equipment includes electronic vapour
Car.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157216.3A CN104701875B (en) | 2015-04-06 | 2015-04-06 | Distributed power grid power distribution system |
| CN201610558661.5A CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157216.3A CN104701875B (en) | 2015-04-06 | 2015-04-06 | Distributed power grid power distribution system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610558661.5A Division CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid distribution system |
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| Publication Number | Publication Date |
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| CN104701875A CN104701875A (en) | 2015-06-10 |
| CN104701875B true CN104701875B (en) | 2017-01-25 |
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| CN201610558661.5A Expired - Fee Related CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid distribution system |
| CN201510157216.3A Expired - Fee Related CN104701875B (en) | 2015-04-06 | 2015-04-06 | Distributed power grid power distribution system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610558661.5A Expired - Fee Related CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid distribution system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11239665B2 (en) * | 2019-02-25 | 2022-02-01 | Eaton Intelligent Power Limited | Grid-edge controllers for uninterruptible power supplies and methods of operating the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248064A (en) * | 2013-04-27 | 2013-08-14 | 惠州市亿能电子有限公司 | Composite energy charging energy storage system and method thereof |
| CN103326388A (en) * | 2013-07-04 | 2013-09-25 | 中国能源建设集团广东省电力设计研究院 | Power prediction based micro-grid energy storage system and capacity configuration method |
| CN104362677A (en) * | 2014-11-19 | 2015-02-18 | 云南电网公司电力科学研究院 | Active distribution network optimal configuration structure and configuration method thereof |
| CN104467198A (en) * | 2014-12-11 | 2015-03-25 | 中国华能集团清洁能源技术研究院有限公司 | Electric energy storage system based on online distribution |
| EP2854255A1 (en) * | 2012-05-22 | 2015-04-01 | Sony Corporation | Control system |
Family Cites Families (4)
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|---|---|---|---|---|
| CN102185375A (en) * | 2011-03-24 | 2011-09-14 | 清华大学 | Electric vehicle energy efficiency evaluation and supervision system and method thereof for intelligent power grid |
| JP5858681B2 (en) * | 2011-08-11 | 2016-02-10 | 株式会社東芝 | Electric vehicle charging system and electric vehicle charging device |
| EP2684733A1 (en) * | 2012-07-11 | 2014-01-15 | Enzo Michele Illiano | Charging station for an electric vehicle and charging device therefor |
| CN103236718B (en) * | 2013-03-26 | 2014-12-31 | 东北大学 | Source-network-load automatic control system and method for intelligent microgrid |
-
2015
- 2015-04-06 CN CN201610558661.5A patent/CN105978034B/en not_active Expired - Fee Related
- 2015-04-06 CN CN201510157216.3A patent/CN104701875B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2854255A1 (en) * | 2012-05-22 | 2015-04-01 | Sony Corporation | Control system |
| CN103248064A (en) * | 2013-04-27 | 2013-08-14 | 惠州市亿能电子有限公司 | Composite energy charging energy storage system and method thereof |
| CN103326388A (en) * | 2013-07-04 | 2013-09-25 | 中国能源建设集团广东省电力设计研究院 | Power prediction based micro-grid energy storage system and capacity configuration method |
| CN104362677A (en) * | 2014-11-19 | 2015-02-18 | 云南电网公司电力科学研究院 | Active distribution network optimal configuration structure and configuration method thereof |
| CN104467198A (en) * | 2014-12-11 | 2015-03-25 | 中国华能集团清洁能源技术研究院有限公司 | Electric energy storage system based on online distribution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104701875A (en) | 2015-06-10 |
| CN105978034A (en) | 2016-09-28 |
| CN105978034B (en) | 2018-08-14 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB02 | Change of applicant information |
Inventor after: Long Yuan Inventor after: Zeng Fanping Inventor after: Guo Tao Inventor after: Hu Shujuan Inventor after: Xiao Yongjie Inventor after: Zhang Wei Inventor after: Peng Xiang Inventor after: Yang Yi Inventor after: Zhou Dandan Inventor after: Zhang Yijun Inventor after: Liu Yang Inventor after: OuYang Wu Inventor after: Yao Yaqun Inventor after: Peng Yinan Inventor after: Ding Meihong Inventor after: Xiaoweiling Inventor after: Cai Fei Inventor after: Du Chaochao Inventor after: Zhang Danyang Inventor after: Luo Yanan Inventor after: Zhang Fan Inventor after: Fu Jiekai Inventor after: Li Sukang Inventor after: Liu Xukai Inventor after: Zuo Bingqiang Inventor after: Zhu Yuehuan Inventor after: Li Jian Inventor after: Xie Zhichao Inventor after: Fang Peng Inventor before: Jiang Cuizhen |
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Effective date of registration: 20161213 Address after: 330000 Nanchang high tech Zone, East Road, No. 7007, No. Applicant after: NANCHANG POWER SUPPLY BRANCH OF STATE GRID JIANGXI ELECTRIC POWER Co. Applicant after: State Grid Corporation of China Applicant after: Nanchang Tongyuan Electric Power Survey Design Consulting Co.,Ltd. Applicant after: JIANGXI SOYEN POWER HIGH-TECH CO.,LTD. Address before: Shijiazhuang City, Hebei Province, the new bridge 050090 West Road No. 369 Applicant before: Jiang Cuizhen |
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