CN109494814A - A kind of control method of the smart grid with energy storage device - Google Patents
A kind of control method of the smart grid with energy storage device Download PDFInfo
- Publication number
- CN109494814A CN109494814A CN201811647205.3A CN201811647205A CN109494814A CN 109494814 A CN109494814 A CN 109494814A CN 201811647205 A CN201811647205 A CN 201811647205A CN 109494814 A CN109494814 A CN 109494814A
- Authority
- CN
- China
- Prior art keywords
- power
- storage device
- output
- energy storage
- generation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
-
- 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
Abstract
The invention discloses a kind of control method of smart grid with energy storage device, include the following steps: that (1) receives the output power of distributed generation resource；Calculate the exportable whole power of power grid；(2) computational load demand power adjusts distributed power source output power proportion；(3) energy storage device is sampled according to the period, calculates the delivery efficiency of the energy storage device in the sampling period；(4) it is matched according to delivery efficiency and distributed power source output power, the performance number of control energy output storage device output.The present invention can adjust the output of energy storage device according to the proportion of the power supply of distributed generation resource, reduce the output power of energy storage device, improve the orderly control of energy, realize the intelligence of power grid power supply.
Description
Technical field
The present invention relates to intelligent power grid technology fields, in particular to a kind of intelligence electricity with energy storage device
The control method of net.
Background technique
In the prior art, the intelligent allotment of power grid is as the optimization of control chip gradually obtains the weight of practitioner
Depending on, with gradually popularizing for generation of electricity by new energy, is being generated electricity using new energy such as photovoltaic, wind-powered electricity generations and quoted extensively, meanwhile, electricity
Pond is as standby energy storage, and on the one hand it can be carried out effectively standby energy storage, still, when being used as standby energy storage, due to photovoltaic,
The Power Generation Sections such as wind-powered electricity generation are stablized, and cause its access times relatively more, the service life of battery plays the cost of entire power grid
Very crucial effect, how the access times of optimal control battery, be and following smart grid in present distributed power generation
It is middle to need to pay attention to, then, in the prior art, only using battery as the margin of energy, as the mode of UPS carry out emergency start or
Energy is supplemented, does not account for and battery is carried out according to the inherent particular state of distributed power generation or transmission efficiency of electrical power etc.
The cost consideration of equal energy storage devices.
Summary of the invention
The invention proposes a kind of control methods of smart grid with energy storage device, include the following steps:
(1) output power of distributed generation resource is received；Calculate the exportable whole power of power grid；
(2) computational load demand power adjusts distributed power source output power proportion；
(3) energy storage device is sampled according to the period, calculates the delivery efficiency of the energy storage device in the sampling period；
(4) it is matched according to delivery efficiency and distributed power source output power, the power of control energy output storage device output
Value.
The control method, the exportable whole power of calculating power grid described in step (1) specifically include:
Wherein, s is the sampling time,It is the SOC of energy storage device for the s+1 times sampling,The s times
Sampling is the SOC of energy storage device, and td is the power output change rate of energy storage device,For energy storage device
Whole exportable power；
Wherein,For power grid output power,For power delivery efficiency,For energy storage device it is whole can be defeated
Power out；For distributed power source output power value.
The control method, it is describedSpecific calculate includes such as under type:
Wherein, I is the electric current for being output to load, and R is the resistance on transmission line,To load the power received,For power grid output power；The watt level supplemented for reactive compensation and harmonic wave.
The control method, described in step (2) adjusting distributed power source output power proportion specifically includes: according to point
Cloth power supply output general power, determine photovoltaic power generation in distributed generation resource, wind power generation, diesel generation, thermal power generation it is each
The power accounting of self power generation, wherein photovoltaic power generation, wind power generation are generation of electricity by new energy, and diesel generation, thermal power generation are tradition hair
Electricity；Calculate the accounting of generation of electricity by new energyWith the accounting of conventional electric power generation。
The performance number of the control method, the control energy output storage device output in step (4) is specifically wrapped
It includes:
Meet energy storage device output powerIt is minimum:
Wherein,、The respectively minimum value and maximum value of the exportable power of energy storage device whole；、The respectively minimum value and maximum value of the SOC of energy storage device；For power grid output power；For distributed power source output power reference value；Adjustment parameter is exported for distributed generation resource；For energy stores dress
The adjustment parameter for setting output is adjusted according to the current temperature value of energy storage device；For the best defeated of u (s)
Controlling value out；
Wherein,Accounting for the new energy put into distributed generation resource,For the new energy that is put into distributed generation resource
Output power,For put into distributed generation resource conventional power source investment conventional power source accounting,For in distributed generation resource
The output power of the conventional power source of investment；
Wherein,
Advantageous effects obtained by the present invention are: (1) present invention can reduce the access times of energy storage device, improve energy storage
The service life of device；(2) it is matched according to the output power of distributed generation resource, adjusts the output power value of energy storage device, realized
The intelligentized control method of power grid；(3) in power supply process, the power quality of power supply and the efficiency of electric energy transmission are fully considered, according to electricity
The quality of energy and the efficiency of transmission, control the output of energy storage device, fully consider the external supply rings of energy storage device
Border carries out output control, reduces the performance number of energy storage device output, reduces the charge and discharge number of energy storage device with this,
The allotment for improving entire power supply realizes the intelligent allotment of power supply, while improving battery, passes through optimization
Control mode reduces the cost that entire power grid uses.
Detailed description of the invention
From following description with reference to the accompanying drawings it will be further appreciated that the present invention.Component in figure is not drawn necessarily to scale,
But it focuses on and shows in the principle of embodiment.In the figure in different views, identical appended drawing reference is specified to be corresponded to
Part.
Fig. 1 is the schematic diagram of control method of the invention.
Specific embodiment
In order to enable the objectives, technical solutions, and advantages of the present invention are more clearly understood, below in conjunction with attached drawing and its implementation
Example, the present invention will be described in further detail；It should be appreciated that described herein, the specific embodiments are only for explaining the present invention,
It is not intended to limit the present invention.To those skilled in the art, consult it is described in detail below after, the present embodiment its
Its system, method and/or feature will become obvious.All such additional systems, method, feature and advantage are intended to all to wrap
It includes in this specification, be included within the scope of the invention, and by the protection of the appended claims.Described in detail below
Describe the other feature of the disclosed embodiments, and these characteristic roots according to it is described in detail below will be apparent
's.
Fig. 1 is the schematic diagram of control method of the invention.The invention proposes a kind of intelligence with energy storage device
The control method of power grid, includes the following steps:
(1) output power of distributed generation resource is received；Calculate the exportable whole power of power grid；
(2) computational load demand power, can receive external setting or the power demand for input determines loading demand function
Rate can also carry out power prediction calculating according to historical data, according to the load demand power of calculating, it is defeated to adjust distributed generation resource
Whether power ratio out, the power supply for specifying distributed generation resource can satisfy loading demand, when the new energy in distributed generation resource without
When method fully meets loading demand, then consider to need according to cost input thermal power generation or diesel generation, according to the tradition of investment
Power generation cooperation battery output electric energy, distribution is calculated in the power supply cost and equipment loss cost of total evaluation system
The proportion of the entire output power of formula power supply；It powers if necessary to energy storage device, then enters step (3)；
(3) energy storage device is sampled according to the period, calculates the delivery efficiency of the energy storage device in the sampling period；
(4) it is matched according to delivery efficiency and distributed power source output power, the power of control energy output storage device output
Value.
The control method, the exportable whole power of calculating power grid described in step (1) specifically include:
Wherein, s is the sampling time,It is the SOC of energy storage device for the s+1 times sampling,The s times
Sampling is the SOC of energy storage device, and td is the power output change rate of energy storage device,For energy storage device
Whole exportable power；
Wherein,For power grid output power,For power delivery efficiency,For energy storage device it is whole can be defeated
Power out；For distributed power source output power value.
The control method, it is describedSpecific calculate includes such as under type:
Wherein, I is the electric current for being output to load, and R is the resistance on transmission line,To load the power received,
For power grid output power；The watt level supplemented for reactive compensation and harmonic wave.
The control method, described in step (2) adjusting distributed power source output power proportion specifically includes: according to point
Cloth power supply output general power, determine photovoltaic power generation in distributed generation resource, wind power generation, diesel generation, thermal power generation it is each
The power accounting of self power generation, wherein photovoltaic power generation, wind power generation are generation of electricity by new energy, and diesel generation, thermal power generation are tradition hair
Electricity；Calculate the accounting of generation of electricity by new energyWith the accounting of conventional electric power generation。
The performance number of the control method, the control energy output storage device output in step (4) is specifically wrapped
It includes:
Meet energy storage device output powerIt is minimum:
Wherein,、The respectively minimum value and maximum value of the exportable power of energy storage device whole；、The respectively minimum value and maximum value of the SOC of energy storage device；For power grid output power；For distributed power source output power reference value；Adjustment parameter is exported for distributed generation resource；For energy storage device
The adjustment parameter of output is adjusted according to the current temperature value of energy storage device；For the best output of u (s)
Controlling value；
Wherein,Accounting for the new energy put into distributed generation resource,For the new energy that is put into distributed generation resource
Output power,For put into distributed generation resource conventional power source investment conventional power source accounting,For distributed generation resource
The output power of the conventional power source of middle investment；
Wherein,
Energy storage device of the invention is preferably lithium battery or super capacitor, and primary object of the invention mainly passes through
Consider the power generation of the middle new energy of distributed power generation and the power supply proportion of conventional electric power generation, carries out the output power of energy storage device
Allotment, simultaneously, moreover it is possible to according to power grid to load efficiency of transmission, such as the efficiency of network transformer, the efficiency of line transmission is humorous
The influence of wave and reactive compensation for power grid, adjusts the output power of energy storage device, makes the use time of energy storage device
Number minimizes, and is applicable in the intelligentized control method of smart grid.
Advantageous effects obtained by the present invention are: (1) present invention can reduce the access times of energy storage device, improve
The service life of energy storage device；(2) it is matched according to the output power of distributed generation resource, adjusts the output power value of energy storage device,
Realize the intelligentized control method of power grid；(3) in power supply process, the power quality of power supply and the efficiency of electric energy transmission are fully considered, according to
According to the quality of electric energy and the efficiency of transmission, the output of energy storage device is controlled, fully considers the external confession of energy storage device
Electrical environment carries out output control, reduces the performance number of energy storage device output, reduces the charge and discharge of energy storage device with this
Number improves the allotment of entire power supply, realizes that the intelligent allotment of power supply is led to while improving battery
Optimal control mode is crossed, the cost that entire power grid uses is reduced.
Although describing the present invention by reference to various embodiments above, but it is to be understood that of the invention not departing from
In the case where range, many changes and modifications can be carried out.Therefore, be intended to foregoing detailed description be considered as it is illustrative and
It is unrestricted, and it is to be understood that following following claims (including all equivalents) is intended to limit spirit and model of the invention
It encloses.The above embodiment is interpreted as being merely to illustrate the present invention rather than limit the scope of the invention.It is reading
After the content of record of the invention, technical staff can be made various changes or modifications the present invention, these equivalence changes and
Modification equally falls into the scope of the claims in the present invention.
Claims (5)
1. a kind of control method of the smart grid with energy storage device, which comprises the steps of:
(1) output power of distributed generation resource is received；Calculate the exportable whole power of power grid；
(2) computational load demand power adjusts distributed power source output power proportion；
(3) energy storage device is sampled according to the period, calculates the delivery efficiency of the energy storage device in the sampling period；
(4) it is matched according to delivery efficiency and distributed power source output power, the power of control energy output storage device output
Value.
2. control method as described in claim 1, which is characterized in that calculate the exportable whole of power grid described in step (1)
Power specifically includes:
Wherein, s is the sampling time,It is the SOC of energy storage device for the s+1 times sampling,The s times sampling
It is the SOC of energy storage device, td is the power output change rate of energy storage device,For energy storage device whole
Exportable power；
Wherein,For power grid output power,For power delivery efficiency,For the exportable of energy storage device whole
Power；For distributed power source output power value.
3. control method as claimed in claim 2, which is characterized in that describedSpecific calculate includes such as under type:
Wherein, I is the electric current for being output to load, and R is the resistance on transmission line,To load the power received,For power grid output power；The watt level supplemented for reactive compensation and harmonic wave.
4. control method as claimed in claim 3, which is characterized in that adjust distributed generation resource output work described in step (2)
Rate proportion specifically include: according to distributed generation resource export general power, determine photovoltaic power generation in distributed generation resource, wind power generation,
Diesel generation, thermal power generation each self power generation power accounting, wherein photovoltaic power generation, wind power generation be generation of electricity by new energy, diesel oil
Power generation, thermal power generation are conventional electric power generation；Calculate the accounting of generation of electricity by new energyWith the accounting of conventional electric power generation。
5. control method as claimed in claim 4, which is characterized in that the control energy output storage dress in step (4)
The performance number for setting output specifically includes:
Meet energy storage device output powerIt is minimum:
Wherein,、The respectively minimum value and maximum value of the exportable power of energy storage device whole；、The respectively minimum value and maximum value of the SOC of energy storage device；For power grid output power；For
Distributed power source output power reference value；Adjustment parameter is exported for distributed generation resource；For the adjusting of energy storage device output
Parameter is adjusted according to the current temperature value of energy storage device；For the best output controlling value of u (s)；
Wherein,Accounting for the new energy put into distributed generation resource,For the new energy that is put into distributed generation resource
Output power,For put into distributed generation resource conventional power source investment conventional power source accounting,For distributed generation resource
The output power of the conventional power source of middle investment；
Wherein,
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811647205.3A CN109494814B (en) | 2018-12-30 | 2018-12-30 | Control method of smart power grid with energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811647205.3A CN109494814B (en) | 2018-12-30 | 2018-12-30 | Control method of smart power grid with energy storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109494814A true CN109494814A (en) | 2019-03-19 |
| CN109494814B CN109494814B (en) | 2020-08-25 |
Family
ID=65713626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811647205.3A Active CN109494814B (en) | 2018-12-30 | 2018-12-30 | Control method of smart power grid with energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109494814B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678223A (en) * | 2020-05-15 | 2020-09-18 | 深圳市瑞能创新科技有限公司 | Energy storage air conditioning system with water production device and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236718A (en) * | 2013-03-26 | 2013-08-07 | 东北大学 | Source-network-load automatic control system and method for intelligent microgrid |
| CN103390900A (en) * | 2013-07-22 | 2013-11-13 | 上海电力学院 | Distributed photovoltaic energy storage system and energy management method |
| CN103701143A (en) * | 2013-11-04 | 2014-04-02 | 国家电网公司 | Energy storage configuration method for smoothing power fluctuation of wind and photovoltaic power storage system |
| CN107370171A (en) * | 2017-07-13 | 2017-11-21 | 北京索英电气技术有限公司 | Extensive energy storage is distributed rationally and control method for coordinating in a kind of independent micro-grid |
| US20180183085A1 (en) * | 2015-07-01 | 2018-06-28 | The Boeing Company | Electrical power distribution system and method for a grid-tied reversible solid oxide fuel cell system |
| CN108233413A (en) * | 2018-01-11 | 2018-06-29 | 中盛新能源科技南京有限公司 | A kind of wind-light storage generates electricity by way of merging two or more grid systems intelligence control system and its control method |
| CN108988337A (en) * | 2018-08-20 | 2018-12-11 | 长沙威克电力技术科技有限公司 | A kind of design method and micro-grid system of micro-grid system energy storage device |
-
2018
- 2018-12-30 CN CN201811647205.3A patent/CN109494814B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236718A (en) * | 2013-03-26 | 2013-08-07 | 东北大学 | Source-network-load automatic control system and method for intelligent microgrid |
| CN103390900A (en) * | 2013-07-22 | 2013-11-13 | 上海电力学院 | Distributed photovoltaic energy storage system and energy management method |
| CN103701143A (en) * | 2013-11-04 | 2014-04-02 | 国家电网公司 | Energy storage configuration method for smoothing power fluctuation of wind and photovoltaic power storage system |
| US20180183085A1 (en) * | 2015-07-01 | 2018-06-28 | The Boeing Company | Electrical power distribution system and method for a grid-tied reversible solid oxide fuel cell system |
| CN107370171A (en) * | 2017-07-13 | 2017-11-21 | 北京索英电气技术有限公司 | Extensive energy storage is distributed rationally and control method for coordinating in a kind of independent micro-grid |
| CN108233413A (en) * | 2018-01-11 | 2018-06-29 | 中盛新能源科技南京有限公司 | A kind of wind-light storage generates electricity by way of merging two or more grid systems intelligence control system and its control method |
| CN108988337A (en) * | 2018-08-20 | 2018-12-11 | 长沙威克电力技术科技有限公司 | A kind of design method and micro-grid system of micro-grid system energy storage device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678223A (en) * | 2020-05-15 | 2020-09-18 | 深圳市瑞能创新科技有限公司 | Energy storage air conditioning system with water production device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109494814B (en) | 2020-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Astero et al. | Improving hosting capacity of rooftop PVs by quadratic control of an LV-central BSS | |
| Lee et al. | Hardware and control implementation of electric springs for stabilizing future smart grid with intermittent renewable energy sources | |
| CN106099965B (en) | Exchange the control method for coordinating of COMPLEX MIXED energy-storage system under micro-grid connection state | |
| WO2015070480A1 (en) | Method for managing energy of battery energy storage power station based on wind power prediction | |
| CN103986190A (en) | Wind and solar storage combining power generation system smooth control method based on power generation power curves | |
| AU2018101070A4 (en) | Automatic voltage control method, device and system for wind farm | |
| CN108695871B (en) | Configuration method for reducing energy storage capacity requirement of island micro-grid containing power spring | |
| CN106505558B (en) | A kind of the energy conveyance control method and device of DC distribution net | |
| Pham et al. | Online optimal control of reactive sources in wind power plants | |
| CN102751724B (en) | Prediction-based three-phase load scheduling method and device responding to demand side | |
| Xiao et al. | Flat tie-line power scheduling control of grid-connected hybrid microgrids | |
| CN110829473A (en) | Power distribution network energy storage optimization configuration method and system considering power four-quadrant output | |
| CN109638864A (en) | A kind of control system of smart grid | |
| CN104578433B (en) | Switchable electric energy storage system and using method thereof | |
| CN108448644A (en) | A kind of control method and system of battery energy storage system virtual synchronous generator | |
| CN110046780B (en) | Islanding micro-grid demand response economic dispatching method and system based on time-of-use electricity price | |
| CN107240925A (en) | The control method of energy storage battery system in a kind of micro-capacitance sensor | |
| CN109494814A (en) | A kind of control method of the smart grid with energy storage device | |
| CN106099956B (en) | Consider the more microgrid power coordination control methods of single three-phase in the case of distribution scheduling | |
| CN113344259A (en) | Multifunctional coupling optimization method, system and device for park comprehensive energy | |
| CN109617183A (en) | A kind of intelligent power supply method of multiple battery systems | |
| CN110137985A (en) | A kind of phase-change switch control method and relevant apparatus | |
| CN105162136A (en) | User power factor control method based on comprehensive energy reactive control | |
| CN108039717A (en) | The capacity collocation method and device of current conversion station in a kind of multiterminal flexible direct current power grid | |
| Eissa et al. | A novel approach for optimum allocation of Flexible AC Transmission Systems using Harmony Search technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Chuan Inventor after: Zheng Liwen Inventor before: Request for anonymity |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200805 Address after: 610000 Sichuan, Chengdu, South Ring Road, No. 1, No. 24 Applicant after: SICHUAN University Address before: 251999 No. 2-6 Dixin Five Road, Binzhou City, Shandong Province Applicant before: Zheng Liwen |