CN105391065B - The Reliability Modeling of distributed power generation and energy storage device operation characteristic - Google Patents
The Reliability Modeling of distributed power generation and energy storage device operation characteristic Download PDFInfo
- Publication number
- CN105391065B CN105391065B CN201510947449.3A CN201510947449A CN105391065B CN 105391065 B CN105391065 B CN 105391065B CN 201510947449 A CN201510947449 A CN 201510947449A CN 105391065 B CN105391065 B CN 105391065B
- Authority
- CN
- China
- Prior art keywords
- storage device
- energy storage
- microgrid
- generating system
- load
- 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.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 19
- 238000010248 power generation Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000007257 malfunction Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Abstract
The present invention relates to a kind of distributed power generation and the Reliability Modeling of energy storage device operation characteristic, belongs to power distribution system technology field.Distributed power generation and energy storage device are equivalent to a combined generating system to consider by the present invention, establish two kinds of models of malfunction and normal condition respectively for combined generating system, the influence of the working method of combined generating system has been taken into full account, the reliability effect of distribution system has been laid a good foundation for analysis joint electricity generation system.
Description
Technical field
The present invention relates to a kind of distributed power generation and the Reliability Modeling of energy storage device operation characteristic, belong to power distribution system
System technical field.
Background technology
With expanding economy and the progress of society, user constantly increases to the demand of electric energy, power supply quality is wanted
Seek also more and more higher.The disadvantages such as power supply reliability level is low, enlarging difficulty is big be present using the power distribution network of traditional centralized power supply system
Disease also increasingly highlights.
Distributed power generation is combined with traditional concentration supply power and is known as being that can reduce electricity by countries in the world electric power expert
Net investment and improvement expenses, via net loss is reduced, improves quality of voltage, improve system reliability and the effective means of flexibility.
In order to reduce adverse effect of the distributed power source to power distribution network, promote effective utilization of distributed power source, there has been proposed microgrid
Concept.The list that microgrid is made up of regenerative resource distributed power generation unit, load, energy storage device and related control device
One controllable autonomous power supply system.Its method of operation is flexible, there is good compatibility to distributed power source.In the phase of being incorporated into the power networks
Between, microgrid can effectively utilize the clean reproducible energies such as wind energy, solar energy, tide to generate electricity, and reduce the dependence to fossil energy, have
Help the pressure of alleviating energy crisis and environmental pollution；When power distribution network breaks down, microgrid can improve user with islet operation and supply
Electric reliability.The microgrid of access distribution feeder end can also reduce power distribution network via net loss and improve the voltage matter of user
Amount.
With the continuous development and popularization of microgrid worldwide, change to distribution net work structure of the access of microgrid and
The output of micro battery own power is uncertain on influenceing to turn into inevitable problems faced caused by distribution network reliability.And traditional base
In single supply radiation type distribution network reliability of structure evaluation method, because be faced with redundant search, calculate complicated, workload is big,
The defects of time-consuming etc. is calculated, the evaluation of the new distribution net reliability comprising microgrid can not be directly applied for.
The content of the invention
In view of insufficient present on, the present invention provides the reliability of a kind of distributed power generation and energy storage device operation characteristic
Modeling method, be advantageous to analysis of the microgrid to the reliability effect of distribution system.
The present invention provides a kind of distributed power generation and the Reliability Modeling of energy storage device operation characteristic, including following step
Suddenly：
Step 1) establishes the model of load in microgrid, and the load parameter of each load point is characterized with average load；
Step 2）The distributed power source and energy storage device that disperse installation in microgrid is equivalent into installed in a physical node
On a combined generating system, and do it is assumed hereinafter that：
A. assume that combined generating system autonomy and controllability are all very good, its regulation in addition at the right time, ignores work(
The influence of rate regulating time constant；
B. think be arranged on microgrid in capacity of energy storing device it is sufficiently large, piconet island run during energy storage device and point
The electric energy that the combined generating system that cloth power supply is formed is provided, workload demand can be met；
C. the factor of the weather of each point is all identical in microgrid；
D. the injecting power of each load point is orthogonal;
Step 3）Establish the failure state model and normal condition model of combined generating system.
Distributed power generation and energy storage device are equivalent to a combined generating system to consider, for cogeneration by the present invention
System establishes two kinds of models of malfunction and normal condition respectively, has taken into full account the shadow of the working method of combined generating system
Ring, the reliability effect of distribution system is laid a good foundation for analysis joint electricity generation system.
The present invention is further elaborated below by way of embodiment.
Embodiment：
The Reliability Modeling of distributed power generation and energy storage device operation characteristic provided by the invention, including following step
Suddenly：
Step 1) establishes the model of load in microgrid, and the load parameter of each load point is characterized with average load；
Load in microgrid is different according to type, can be divided into resident living load, industrial load and Commercial Load, with
Because the payload of each load point is random fluctuation in electric system, therefore it is difficult to be retouched with simple unified mathematical modeling
State.The load parameter of each load point is generally characterized with average load, can be obtained from long-term statistics, average load
Certain relation between peak load be present, you can average load is obtained by the product of peak load and load coefficient.
Step 2）The distributed power source and energy storage device that disperse installation in microgrid is equivalent into installed in a physical node
On a combined generating system, and do it is assumed hereinafter that：
A. assume that combined generating system autonomy and controllability are all very good, its regulation in addition at the right time, ignores work(
The influence of rate regulating time constant；
B. think be arranged on microgrid in capacity of energy storing device it is sufficiently large, piconet island run during energy storage device and point
The electric energy that the combined generating system that cloth power supply is formed is provided, workload demand can be met；
C. the factor of the weather of each point is all identical in microgrid；
D. the injecting power of each load point is orthogonal;
The output of photovoltaic generating system and wind generator system in distributed power source is had a great influence by natural weather, is all had
There are very big randomness, fluctuation and intermittence, but their power curve variation tendency is not consistent, each occurs maximum
Also differed at the time of value, therefore they are combined with energy storage device can play good complementary effect, one can be formed
The fluctuation of individual combined generating system, smooth photovoltaic generation and wind power generation output, supplied as an entirety to improve system
Electric reliability simultaneously improves the quality of power supply.
Step 3）Establish the failure state model and normal condition model of combined generating system.
Under the pattern of being incorporated into the power networks, the electric energy of microgrid is supplied due to having the support of bulk power grid, the power supply of load point therein
Continuity and the quality of power supply are contributed by distributed power source and energy storage device and influenceed and little；And under islet operation pattern, it is micro-
Various power supplys and load in net lose the support of bulk power grid, and its quality of power supply all will be ensured by combined generating system, work
Make the power supply that state will directly affect microgrid internal loading.
Consider in invention using combined generating system as an entirety, using two state models, i.e., malfunction with
Normal condition.Simultaneously during piconet island is run, whole electrical energy demands of load are all supplied by combined generating system, because
This, the difference between the output and workload demand of combined generating system will directly affect microgrid electric power thus supplied.Join according in microgrid
The ratio between output and load of electricity generation system are closed, i.e., power generation load rate is equal to 1 and the situation less than 1 is to micro-grid system islet operation
When working condition analyzed.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, those of ordinary skill in the art are to this hair
Other modifications or equivalent substitution that bright technical scheme is made, without departing from the spirit and scope of technical solution of the present invention,
It all should cover in scope of the presently claimed invention.
Claims (1)
- A kind of 1. Reliability Modeling of distributed power generation and energy storage device operation characteristic, it is characterised in that：Including following step Suddenly：Step 1) establishes the model of load in microgrid, and the load parameter of each load point is characterized with average load；Step 2）The distributed power source and energy storage device that disperse installation in microgrid is equivalent on a physical node One combined generating system, and do it is assumed hereinafter that：A. assume that combined generating system autonomy and controllability are all very good, its regulation in addition at the right time, ignores power tune Save the influence of time constant；B. think that the capacity of energy storing device in microgrid is sufficiently large, energy storage device and distribution during piconet island is run The electric energy that the combined generating system that power supply is formed is provided, workload demand can be met；C. the factor of the weather of each point is all identical in microgrid；D. the injecting power of each load point is orthogonal;Step 3）Establish the failure state model and normal condition model of combined generating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947449.3A CN105391065B (en) | 2015-12-17 | 2015-12-17 | The Reliability Modeling of distributed power generation and energy storage device operation characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947449.3A CN105391065B (en) | 2015-12-17 | 2015-12-17 | The Reliability Modeling of distributed power generation and energy storage device operation characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105391065A CN105391065A (en) | 2016-03-09 |
| CN105391065B true CN105391065B (en) | 2018-04-10 |
Family
ID=55423030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510947449.3A Active CN105391065B (en) | 2015-12-17 | 2015-12-17 | The Reliability Modeling of distributed power generation and energy storage device operation characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105391065B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7860702B1 (en) * | 2002-09-18 | 2010-12-28 | Peter B. Evans | Assessing distributed energy resources for the energynet |
| CN102437571B (en) * | 2011-11-09 | 2014-08-06 | 南方电网科学研究院有限责任公司 | Physical modeling system with wind power generation, photovoltaic power generation and energy storage integration system |
| CN102541621B (en) * | 2011-11-30 | 2015-03-25 | 中国电力科学研究院 | Simulation equivalent method of wind-photovoltaics-energy storage joint power generation system |
| CN103514571B (en) * | 2013-10-22 | 2016-08-17 | 国家电网公司 | A kind of business resident load type load modeling method based on load curve decomposition |
| CN104991161B (en) * | 2015-06-08 | 2018-03-02 | 西安交通大学 | Double-fed aerogenerator stator winding interturn short-circuit models and feature extracting method |
-
2015
- 2015-12-17 CN CN201510947449.3A patent/CN105391065B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105391065A (en) | 2016-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104037793B (en) | A kind of energy-storage units capacity collocation method being applied to active distribution network | |
| CN101777769B (en) | Multi-agent optimized coordination control method of electric network | |
| CN104092250B (en) | The distributed economic load dispatching of micro-grid system and control method for coordinating | |
| CN102412578B (en) | Laboratory microgrid system | |
| CN103593711B (en) | A kind of distributed power source Optimal Configuration Method | |
| CN105337301A (en) | Gird connection point selection method and device of microgrid | |
| CN106786625A (en) | Distribution network voltage control method for coordinating based on distributing-supplying-energy system interaction capability | |
| CN103606957A (en) | Design for multifunctional photovoltaic grid-connected control method | |
| CN105375501A (en) | Multi-time scale micro-grid layered stability control method | |
| CN108400593A (en) | Active distribution network electrical model method for building up based on layering multi-agent technology | |
| CN108365627A (en) | A kind of wind storage isolated network power supply system control method for coordinating based on flexible coordinating factor | |
| CN115222213A (en) | Power distribution management planning method and system for power grid | |
| Wang et al. | Novel adaptive power distribution master–slave control strategy for a biogas–solar–wind battery islanded microgrid based on a microturbine | |
| Sharma et al. | Comparative analysis of different types of micro-grid architectures and controls | |
| CN105391065B (en) | The Reliability Modeling of distributed power generation and energy storage device operation characteristic | |
| Zhang et al. | Research on microgrid | |
| Wang et al. | Optimal configuration of energy storage capacity in multi-energy system with temperature control equipment based on discrete fourier transform | |
| Hou et al. | Optimized wind-light-storage configuration based on Homer pro | |
| Wang et al. | Research on Coordinated Reactive Power and Voltage Control Strategy for Regional Power Grids with High Penetration of Renewable Energy | |
| CN111555323A (en) | Water-light-hydrogen complementary micro-grid power generation system and method | |
| Lin et al. | Distributed Coordinated Voltage Control of Photovoltaic and Energy Storage System Based on Dynamic Consensus Algorithm | |
| Yu et al. | Research on microgrid reconfiguration under rural network fault | |
| CN109586344A (en) | Photovoltaic user's method for managing power supply based on VSG and distributing microgrid structure | |
| Wu et al. | Coordinated control study of optical storage DC microgrid system | |
| Yan et al. | Topology adjustment and optimal flow power based power control for offshore wind power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: Huang Chunguang Inventor after: Guo Jinsong Inventor after: Huang Jianyang Inventor after: Ran Jinwen Inventor after: Yu Miaojie Inventor after: Yu Xiaosong Inventor before: Guo Jinsong Inventor before: Chen Xiaoping Inventor before: Xuan Feixiang Inventor before: Zhou Bo Inventor before: Chen Mengxia |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |