CN104701875A - Distributed power grid power distribution system - Google Patents
Distributed power grid power distribution system Download PDFInfo
- Publication number
- CN104701875A CN104701875A CN201510157216.3A CN201510157216A CN104701875A CN 104701875 A CN104701875 A CN 104701875A CN 201510157216 A CN201510157216 A CN 201510157216A CN 104701875 A CN104701875 A CN 104701875A
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- China
- Prior art keywords
- energy storage
- storage units
- power
- threshold
- consumption equipment
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (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 thermal power plant or nuclear plant, and produce electric power by these power plants, electric power flows to consumer by power distribution network.The electric energy of these energy resource supplies is more stable, and can easily regulate to satisfy the demands of consumers, and meets the standard about this electric energy simultaneously, such as rated voltage level and rated frequency level.But the shortcoming that these conventional energy resources have comprises non-renewable, the problem such as environmental pollution and possible nuclear energy leakage.
Along with people are to the growing interest of environmental protection, increasing new forms of energy are used to provide electric power, and such as solar energy and wind power generation are connected to power distribution network.The advantage of these new forms of energy is reproducible, and contributes to reducing the discharge of the greenhouse gas adversely affecting weather conditions.But the shortcoming of these energy is that power output is unstable, and its output in the relatively short time interval, may change in the larger context, thus causes the impact for electrical network power transmission and distribution ability.
In prior art, such as, in the patent of invention of 201180020603.2, mainly through arranging the public power storage system of a unification at power distribution network, such as pumped-storage power generation station, by this power station, smooth adjustment is done for power output, thus avoiding the impact of these new forms of energy for electrical network, this needs to set up separately a common memory system, and cost is huge.But in fact, in the power consumption equipment of electrical network, many power consumption equipments such as electric automobile etc. all possesses energy storage units, and these power consumption equipments did not use in the most of the time.The mode of existing intelligent charge, is also only within the given time period, therefrom selects the most favorable charging interval, charge, and do not make full use of the energy storage units of these power consumption equipments to the energy storage units of power consumption equipment.Therefore, the present invention proposes a kind of distributed power grid distribution system, the energy storage units that can make full use of in power consumption equipment regulates electrical network, thus eliminates the cost setting up common memory system.
Summary of the invention
As one aspect of the present invention, provide a kind of distributed power grid distribution system, comprise utility power, electrical network and power consumption equipment, described utility power can be powered to power consumption equipment by electrical network, described power consumption equipment comprises energy storage units, and described energy storage units provides electric power can to described power consumption equipment; Described power consumption equipment, according to the change of the instantaneous output of described utility power, makes energy storage units carry out charging or make energy storage units to mains supply.Wherein, described utility power comprises first power supply that stable energy can be provided to export and the second source exporting energy instability.Described first power supply comprises coal-fired station, combustion gas thermal power plant or nuclear plant.Described second source comprises solar power station or wind power station.
Preferably, in such scheme, described power consumption equipment arranges first threshold and the Second Threshold of energy storage units electricity, and when energy storage units electricity is greater than first threshold, described energy storage units can to mains supply; When energy storage units electricity is less than Second Threshold, described energy storage units can not to mains supply; Described first threshold is greater than Second Threshold.
Preferably, in such scheme, described power consumption equipment can arrange two kinds of mode of operations, and in the first operational mode, described energy storage units is to be charged as main purpose; In a second mode of operation, described energy storage units is to regulate the instantaneous output of utility power for main purpose.
Preferably, in such scheme, in the first operational mode, when the electricity of described energy storage units is less than the 3rd threshold value, described energy storage units charges, can not to mains supply; When energy is greater than the 3rd threshold value, described energy storage units can to mains supply; Described 3rd threshold value is greater than described first threshold.
Preferably, in such scheme, in a second mode of operation, as long as its electricity is greater than the 4th threshold value, described energy storage units just can to mains supply, and described 4th threshold value is less than described first threshold, and described 4th threshold value is greater than described Second Threshold.
Preferably, in such scheme, in a second mode of operation, when the instantaneous output of utility power is not enough, described power consumption equipment monitors its energy storage units electricity, if its electricity is greater than the 4th threshold value, then described power consumption equipment makes described energy storage units to mains supply; When the instantaneous output of utility power is excessive, described power consumption equipment monitors its energy storage units, if its electricity is not full of, then described power consumption equipment makes described energy storage units charge.
Preferably, in such scheme, described power consumption equipment also comprises counter, and when described energy storage units works in a second mode of operation, described counter is used for counting the impulse electricity number of times of described energy storage units.
Preferably, in such scheme, also comprise service rating unit, for evaluating the power consumption equipment contribution degree for electrical network adjustment in a second mode of operation.
Preferably, in such scheme, the evaluating of described service rating unit comprises, initial quantity of electricity Qs, terminates electricity Qf, impulse electricity frequency n and operating 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), rated power when wherein p is the charging of described energy storage units, v is adjustment factor, when C is less than zero, C is set to zero.
Preferably, in such scheme, also comprise Charging Detail Record unit, when described power consumption equipment works in a first operation mode, described Charging Detail Record unit judges described contribution degree C value, determine final charging expense (the Q-C) × m of user according to described contribution degree C value, wherein Q is the actual charge volume of power consumption equipment, and m is unit charge volume expense.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of distributed power grid distribution system of the present invention.
Fig. 2 is the schematic diagram of power consumption equipment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
See Fig. 1, distributed power grid distribution system of the present invention comprises utility power, electrical network 200 and power consumption equipment.Utility power comprises conventional power plant 101 and generation of electricity by new energy factory 102, wherein conventional energy resource power plant 101 can provide stable electric power to export, can be such as coal-fired station, combustion gas thermal power plant or nuclear plant, generation of electricity by new energy factory 102 uses renewable energy power generation, its electric power exports unstable, and it can be solar power plant or wind power plant.Utility power can be powered to power consumption equipment by electrical network 200.Power consumption equipment comprises the power consumption equipment 30 with energy storage units, such as electric automobile, and these power consumption equipments, can also be mutual with electrical network except can using electric power, to mains supply; And other power consumption equipment 40, such as electric light etc., only can use electric power.Power consumption equipment 30, according to the change of the instantaneous output of generation of electricity by new energy factory 102 in utility power, makes energy storage units carry out charging or make energy storage units to mains supply.
Power consumption equipment 30 as shown in Figure 2, comprises energy storage units 301, and it can be carried out charging and provide electric power to electrical network; Electricity monitoring unit 302, it can be monitored in real time to the electricity of energy storage units 301; Counter 301, it can count the discharge and recharge number of times of energy storage units; Service rating unit 304, it can be evaluated the contribution degree that electrical network regulates power consumption equipment; Charging Detail Record unit 305, it can determine the final charging expense of user.Power consumption equipment 30 arranges first threshold and the Second Threshold of energy storage units 301 electricity, such as can arrange first threshold is 80% electricity, Second Threshold is 30% electricity, and when energy storage units 301 electricity is greater than 80%, energy storage units can to mains supply; When energy storage units electricity 301 is less than 30%, energy storage units 301 can not to mains supply.
Power consumption equipment 30 can arrange two kinds of mode of operations by arranging module, and under the first charge mode, user may use car at any time, and energy storage units 301 is to be charged as main purpose; Under the second shaping modes, user may be long-time without car, and energy storage units 301 is to regulate the instantaneous output of utility power for main purpose.
Under charge mode, because user may use car at any time, when the electricity of energy storage units 301 is less than the 3rd threshold value, such as 90% electricity, energy storage units 301 charges, can not to mains supply; When electricity is greater than 90%, energy storage units 301 can to mains supply.Under shaping modes, it is mainly used in regulating grid power, as long as its electricity is greater than the 4th threshold value, and such as 60%, energy storage units 301 just can to mains supply.Under shaping modes, when the instantaneous output of utility power is not enough, power consumption equipment prison 30 surveys its energy storage units 301 electricity by electricity monitoring unit 302, if its electricity is greater than 60%, then power consumption equipment 30 makes energy storage units 301 can to mains supply, electrical network, according to the charge condition of energy accumulator, makes it power to other neighbouring power consumption equipments; When the instantaneous output of utility power is excessive, power consumption equipment 30 monitors its energy storage units 301, if its electricity is not full of, then power consumption equipment 30 makes energy storage units 301 charge.
Under shaping modes, the impulse electricity number of times of counter 301 pairs of energy storage units 301 counts.Service rating unit 304, for evaluating the contribution degree for electrical network adjustment of power consumption equipment 30 under shaping modes.The evaluating of service rating unit 304 comprises, initial quantity of electricity Qs, terminates electricity Qf, impulse electricity frequency n and operating time s in this mode.Wherein, contribution degree C is calculated by following formula, C=p × s × n × v-(Qf-Qs), rated power when wherein p is the charging of described energy storage units, v is adjustment factor, when C is less than zero, C is set to zero.
Power consumption equipment 30 also comprises Charging Detail Record unit 305, when power consumption equipment 30 works under charge mode, Charging Detail Record unit 305 pairs of contribution degree C values judge, final charging expense (the Q-C) × m of user is determined according to described contribution degree C value, wherein Q is the actual charge volume of power consumption equipment, and m is unit charge volume expense.
According to specific exemplary embodiment, invention has been described herein.It will be apparent under not departing from the scope of the present invention, carrying out suitable replacement to one skilled in the art or revise.Exemplary embodiment is only illustrative, instead of the restriction to scope of the present invention, and scope of the present invention is defined by appended claim.
Claims (9)
1. a distributed power grid distribution system, comprise utility power, electrical network and power consumption equipment, described utility power can be powered to power consumption equipment by electrical network, and described power consumption equipment comprises energy storage units, and described energy storage units provides electric power can to described power consumption equipment; It is characterized in that: described power consumption equipment, according to the change of the instantaneous output of described utility power, makes energy storage units carry out charging or make energy storage units to mains supply.
2. distributed power grid distribution system according to claim 1, it is characterized in that: described power consumption equipment arranges first threshold and the Second Threshold of energy storage units electricity, when energy storage units electricity is greater than first threshold, described energy storage units can to mains supply; When energy storage units electricity is less than Second Threshold, described energy storage units can not to mains supply; Described first threshold is greater than Second Threshold.
3. distributed power grid distribution system according to claim 2, is characterized in that: described power consumption equipment can arrange two kinds of mode of operations, and in the first operational mode, described energy storage units is to be charged as main purpose; In a second mode of operation, described energy storage units is to regulate the instantaneous output of utility power for main purpose.
4. distributed power grid distribution system according to claim 3, is characterized in that: in the first operational mode, and when the electricity of described energy storage units is less than the 3rd threshold value, described energy storage units charges, can not to mains supply; When electricity is greater than the 3rd threshold value, described energy storage units can to mains supply; Described 3rd threshold value is greater than described first threshold.
5. distributed power grid distribution system according to claim 4, it is characterized in that: in a second mode of operation, as long as its electricity is greater than the 4th threshold value, described energy storage units just can to mains supply, described 4th threshold value is less than described first threshold, and described 4th threshold value is greater than described Second Threshold.
6. distributed power grid distribution system according to claim 5, is characterized in that: described utility power comprises the first power supply providing stable energy to export and the second source exporting energy instability.
7. distributed power grid distribution system according to claim 6, is characterized in that: described first power supply coal-fired station, combustion gas thermal power plant or nuclear plant.
8. distributed power grid distribution system according to claim 7, is characterized in that: described second source comprises solar power station or wind power station.
9. distributed power grid distribution system according to claim 8, is characterized in that: described power consumption equipment comprises electric automobile.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610558661.5A CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid distribution system |
| CN201510157216.3A CN104701875B (en) | 2015-04-06 | 2015-04-06 | Distributed power grid power 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 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610558661.5A Division CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid distribution system |
Publications (2)
| Publication Number | Publication Date |
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| CN104701875A true CN104701875A (en) | 2015-06-10 |
| CN104701875B CN104701875B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510157216.3A Expired - Fee Related CN104701875B (en) | 2015-04-06 | 2015-04-06 | Distributed power grid power distribution system |
| CN201610558661.5A Expired - Fee Related CN105978034B (en) | 2015-04-06 | 2015-04-06 | distributed power grid 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113557647A (en) * | 2019-02-25 | 2021-10-26 | 伊顿智能动力有限公司 | Grid edge controller for uninterruptible power supplies and method of operating the same |
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| 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 |
| US20140297051A1 (en) * | 2013-03-26 | 2014-10-02 | Northeastern University | Energy resource-grid-load automatic control system of smart microgrid and control methods thereof |
| 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 (3)
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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 |
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2015
- 2015-04-06 CN CN201510157216.3A patent/CN104701875B/en not_active Expired - Fee Related
- 2015-04-06 CN CN201610558661.5A patent/CN105978034B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2854255A1 (en) * | 2012-05-22 | 2015-04-01 | Sony Corporation | Control system |
| US20140297051A1 (en) * | 2013-03-26 | 2014-10-02 | Northeastern University | Energy resource-grid-load automatic control system of smart microgrid and control methods thereof |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113557647A (en) * | 2019-02-25 | 2021-10-26 | 伊顿智能动力有限公司 | Grid edge controller for uninterruptible power supplies and method of operating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104701875B (en) | 2017-01-25 |
| 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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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20170125 |