CN108964039A - Method for solving tangent plane of electric-gas coupling system static stable region of wind power plant containing DFIG - Google Patents
Method for solving tangent plane of electric-gas coupling system static stable region of wind power plant containing DFIG Download PDFInfo
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- CN108964039A CN108964039A CN201810810001.0A CN201810810001A CN108964039A CN 108964039 A CN108964039 A CN 108964039A CN 201810810001 A CN201810810001 A CN 201810810001A CN 108964039 A CN108964039 A CN 108964039A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 title abstract description 9
- 238000010168 coupling process Methods 0.000 title abstract description 9
- 238000005859 coupling reaction Methods 0.000 title abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000007789 gas Substances 0.000 claims abstract description 47
- 239000003345 natural gas Substances 0.000 claims abstract description 44
- 230000014509 gene expression Effects 0.000 claims abstract description 7
- 238000013178 mathematical model Methods 0.000 claims abstract description 3
- 241000208340 Araliaceae Species 0.000 claims description 8
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 8
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 8
- 235000008434 ginseng Nutrition 0.000 claims description 8
- 230000004807 localization Effects 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000002940 Newton-Raphson method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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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
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- H02J3/386—
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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
- 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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The invention discloses a method for solving a static stability domain tangent plane of a wind power plant electricity-gas coupling system containing DFIG, which relates to the field of safe and stable operation of a multi-energy flow system and comprises the following steps: firstly, establishing a DFIG mathematical model, considering a power flow equation of a power system of a wind power plant containing the DFIG, a natural gas system power flow equation and an EH-based power flow equation considering an electric-gas coupling system, and establishing a power flow model containing parameters of the electric-gas coupling system of the wind power plant containing the DFIG; then, on the premise of considering the electric-gas coupling relation, respectively obtaining the initial points of the static stable region boundary of the power system and the natural gas system based on a continuous power flow method and obtaining the boundary track of the static stable region of the power system and the natural gas system; and respectively calculating tangent plane expressions of static stable domains of the electric power system and the natural gas system of the DFIG-containing wind power plant, and fitting the tangent planes of the static stable domains of the electric power system and the natural gas system. The method is suitable for the development trend of energy interconnection and is very important for the static safety analysis of the multi-energy system.
Description
Technical field
The present invention relates to a kind of electric-gas coupled system steady stability of wind power plant containing DFIG domain tangent plane method for solving, belong to
Multipotency streaming system safe and stable operation field.
Background technique
Under the background of energy source interconnection, the access of extensive high proportion wind-powered electricity generation can be to the uncertainty of electric-gas coupled system
It dramatically increases.As the coupling between electric system, natural gas system is constantly reinforced, consider wind power output to electric-gas coupling
The influence for closing power system steady-state stability domain, for maintaining the safety and stability of electric-gas coupled system and improving to wind-powered electricity generation using very
It is important.
The analysis method of stable region is applied in the electric-gas coupled system containing wind power plant, can be transported by tracing system
Row point provides safety margin and optimum control information with security domain boundaries, thus monitor the online actual time safety of electric system,
Defence and control are more scientific and more effective.Document " ANewApproach to theAssessment ofSteady-State
Voltage Stability Margins Using the P-Q-V Curve " propose that a kind of P-Q-V based on continuous tide is quiet
State voltage stabilization security domain；Document " transmission system probability static state and dynamic security comprehensive assessment " proposes a kind of based on security domain
Power transmission network probability static state and dynamic security comprehensive estimation method；Document " the multipotency stream static security towards energy internet
Analysis method " propose the concept and method of the multipotency stream static security analysis towards energy internet.The studies above main sides
Electric system is overweighted, and uncertain energy access system is also rarely reported the static security analysis research of electric-gas coupled system,
This will be good innovative point.
Summary of the invention
In view of the deficiencies of the prior art, " a kind of electric-gas coupled system steady stability of wind power plant containing DFIG domain is cut flat with the present invention
Face method for solving " establishes the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng；Consider the coupling of electric-gas system, application
Continuation Method is tracked electric system and natural gas system inhibited stably, respectively obtains electric system and natural gas system
System steady stability domain boundary locus；Determine the tangent plane expression formula of electric system containing DFIG and natural gas system steady stability domain.
The present invention adopts the following technical scheme: a kind of electric-gas coupled system steady stability of wind power plant containing DFIG domain tangent plane
Method for solving, this method comprises the following steps:
Step 1: proposing the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng；
Step 2: considering electric-gas system coupled relation, electric system and natural gas system are stablized using Continuation Method
Domain boundary is tracked, and respectively obtains electric system and natural gas system steady stability domain boundary locus；
Step 3: determining the tangent plane expression formula in electric system containing DFIG and natural gas system steady stability domain.
Detailed description of the invention
Fig. 1 is inventive algorithm flow chart.
Specific embodiment
The present invention the following steps are included:
Step 1: proposing the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng
(1) DFIG mathematical model is established
The steady-state model of DFIG wind-driven generator has been widely studied, and the present invention will be applied directly, and details repeats no more, sense
The reader of interest can be with bibliography " Research on Voltage Stability Boundary under Different
Reactive Power》。
(2) electric-gas coupled system power flow equation group containing ginseng:
In formula, λe、λgThe respectively vector of electric system and natural gas system power injection and load variations；PGi、PLi、
QGi、QLiRespectively represent active power, burden with power, reactive power and the load or burden without work of the sending of initial point generator；Vi、θiPoint
It Biao Shi not node voltage and node phase angle；fgFor natural gas node flow matrix；B is the branch node pass for removing Compressor Pipes
Join matrix；U is compressor node incidence matrix；ω is natural gas gas input；T τ is compressor gas demand；fgkIt is
The flow of k natural gas line；MkFor natural gas line constant；SijFor the direction of air in pipeline flowing；P is node pressure；
ηTrans、ηCHP.e、ηCHP.Th、ηFur、ηEx, transformer, the Power Generation Section CHP respectively in energy hub (energy hub, EH)
Point, CHP heat supply part, heat boiler and heat exchanger transformation efficiency；Pe、PgThe electrical power and natural gas of respectively EH input；ρ
For atmospheric density；A is the swept area of blower；CpIt is the power coefficient of generator；PNFor blower rated power；vi,vN,
voRespectively cut wind speed, rated wind speed and cut-out wind speed.
(3) the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng
In formula, fW, fE, fGAnd fEHRespectively DFIG equation, electric power networks equation, natural gas network equation and EH equation；Vs
For stator voltage size, θsFor stator voltage phase angle, VrFor rotor voltage size, θrFor rotor voltage phase angle, IrFor rotor current
Size, ФrFor rotor current phase angle, IsFor stator current size, ФsFor stator current phase angle, s is slippage.
Step 2: electric-gas system coupled relation is considered, using Continuation Method to electric-gas coupled system steady stability domain side
Boundary is tracked, and respectively obtains electric system and natural gas system steady stability domain boundary locus；
The present invention falls into a trap and load parameter λ in continuous tide equatione,λg.So that λe∈[0,λec], λg∈[0,λgc], wherein
λecAnd λgcThe respectively load growth coefficient of electric power networks and natural gas network in critical point.Correspond in λ=0 original
The load level of operating point, in λ=λcWhen load level corresponding to the steady stability critical point under given load growth pattern.
fLh=Lh-ηCHP.ThPg-(1-ν)ηFurPg=0
Above formula shows electric-gas coupled relation, can use f by the coupled wave equation between EHEH(Pe,Pg) indicate, load is to become
Amount, and it is commonly known.PeAnd PgIt is power supply in EH, and in electric system and natural gas system, it is gentle negative to be equivalent to electric load
Lotus.Therefore after considering the coupled relation between electrical, electric system and natural gas system are sought respectively using Continuation Method
Steady stability domain boundary locus.
(1) power system steady stability domain boundary initial point solves
It is wide for the method for steady stability domain boundary initial point in electric system after considering electric-gas coupled relation
General research, the present invention will not be described in great detail this details.
(2) natural gas system steady stability domain boundary initial point solves
After considering electric-gas coupled relation, natural gas system containing parameter power flow equation group differentiates to obtain:
X in formulagIndicate the state variable f of electric-gas coupled systemg, p, λg, the calculation formula of continuous tide prediction step are as follows:
In formula,Row vector is corresponded to for Jacobian matrix, after tangent vector is found out, the predicted value of next step is given by.
X in formulag%, λg% is discreet value, xg0、λg0For initial value, σgFor prediction step.
2) correction calculates
In correction step calculates, using the method for vertical correction, with [xg%, λg%]TFor initial value, using Newton-Raphson
Method solves following correction equations.
Δ x in formulag、ΔλgIt is calculated under corrected value conduct in correction calculates by Newton-Raphson for correction amount
The initial value that predicted portions calculate, iteration to system Critical operating point, thus natural in electric-gas coupled system to calculate always
The peak load nargin of gas network.The SNB locus of points in an available natural gas system steady stability domain.
Step 3: determining the tangent plane expression formula in electric system containing DFIG and natural gas system steady stability domain.
(1) tangent plane containing DFIG power system steady stability domain is calculated
Consider electric-gas coupled relation after, the tangent plane to the domain of power system steady stability containing DFIG method for solving
There is correlative study, the present invention will not be described in great detail this details, and interesting reader can be with reference to a kind of patent of invention " wind containing DFIG
Electric field static system voltage stability domain tangent plane solves new method ".
(2) tangent plane in natural gas system steady stability domain is calculated
In the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng, it is contemplated that the EH equation of electric-gas coupling,
Being linearized at SNB point by natural gas system power flow equation can be obtained:
In the formula, J is natural gas system Jacobian matrix；α, β is load in natural gas system, compressor pressure note
The growing direction sequence entered, " | * " left side is all its corresponding Expanded Jacobian matrix.
The corresponding left eigenvector ω of Jacobian matrix zero eigenvalue at the premultiplication SNB point, can obtain:
In formula, " | * " indicates that SNB point place corresponds to value, then above formula can abbreviation are as follows:
Above formula can be considered λgThe necessary condition of natural gas system steady stability domain tangent plane is constituted in alpha-beta space.Thus may be used
Natural gas system Static Voltage Stability Region local tangential plane analytic expression must be contained:
KλgΔλg|*+KαΔα|*+KβΔ β | *=0
K in formulaλg, Kα, KβRespectively constitute natural gas system steady stability domain tangent plane fitting coefficient.
A kind of electric-gas coupled system steady stability of wind power plant containing DFIG domain tangent plane method for solving is just obtained accordingly.
Embodiments above is merely to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to protection category of the invention.
Claims (4)
1. a kind of electric-gas coupled system steady stability of wind power plant containing DFIG domain tangent plane method for solving, it is characterised in that:
(1) the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng is proposed；
(2) consider electric-gas system coupled wave equation, using Continuation Method to electric system and natural gas system inhibited stably into
Row tracking, respectively obtains electric system and natural gas system steady stability domain boundary locus；
(3) the tangent plane expression formula in electric system containing DFIG and natural gas system steady stability domain is determined.
2. one kind electric-gas coupled system steady stability domain of wind power plant containing DFIG tangent plane solution side according to claim 1
Method, which is characterized in that the electric-gas coupled system of wind power plant containing DFIG tide model containing ginseng is proposed in the step 1).It initially sets up
DFIG mathematical model, consider the wind power plant containing DFIG electric power system tide equation, natural gas system power flow equation and be based on EH
The considerations of electric-gas coupled system power flow equation, establish the electric-gas coupled system of wind power plant containing DFIG containing joins tide model.
3. one kind electric-gas coupled system steady stability domain of wind power plant containing DFIG tangent plane solution side according to claim 1
Method, which is characterized in that electric-gas system coupled wave equation is considered in the step 2), using Continuation Method to electric system and day
Right gas system inhibited stably is tracked, and respectively obtains electric system and natural gas system steady stability domain boundary locus.It is first
First under the premise of considering electric-gas coupled relation, it is based on Continuation Method, it is static to electric system and natural gas system steady respectively
Localization boundary initial point is solved；Finally respectively obtain the electric system of wind power plant containing DFIG and natural gas system steady stability domain
The SNB locus of points.
4. one kind electric-gas coupled system steady stability domain of wind power plant containing DFIG tangent plane solution side according to claim 1
Method, which is characterized in that the step 3) determines the tangent plane table in electric system containing DFIG and natural gas system steady stability domain
Up to formula；On the basis of step 2), cutting for the electric system of wind power plant containing DFIG and natural gas system steady stability domain is sought respectively
Plane expression formula is fitted electric system and natural gas system steady stability domain under the premise for considering electric-gas coupled relation
Tangent plane.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112725A (en) * | 2019-04-25 | 2019-08-09 | 中国电力科学研究院有限公司 | A kind of construction method and device on the power grid steady stability domain boundary of information driving |
| CN111769603A (en) * | 2020-07-13 | 2020-10-13 | 国网天津市电力公司 | Unit optimal scheduling method based on safety margin of electric-gas coupling system |
| CN114285037A (en) * | 2022-03-07 | 2022-04-05 | 天津大学 | Method for determining control parameter stability region of regional electricity-gas integrated energy system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011121535A2 (en) * | 2010-04-01 | 2011-10-06 | Goliath Power Ventures (Pty) Limited | A system and method for managing resources |
| CN103248049A (en) * | 2013-05-22 | 2013-08-14 | 长沙理工大学 | Method of obtaining electrical power system voltage stability domain tangent plane containing DFIG (Doubly Fed Induction Generator) wind power plant |
| CN104734155A (en) * | 2015-04-14 | 2015-06-24 | 河海大学 | Method of acquiring available transfer capacity of electricity-gas interconnected energy system |
| CN105356447A (en) * | 2015-10-27 | 2016-02-24 | 河海大学 | Analysis method for steady-state security region of electric-pneumatic interconnected integrated energy system |
| CN105930980A (en) * | 2016-06-08 | 2016-09-07 | 河海大学 | Multi-point linearized probability energy flow method of integrated energy system with electricity converting to natural gas |
| CN108875277A (en) * | 2018-07-23 | 2018-11-23 | 长沙理工大学 | Multi-energy flow system static safety analysis method considering natural gas system N-1 |
-
2018
- 2018-07-23 CN CN201810810001.0A patent/CN108964039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011121535A2 (en) * | 2010-04-01 | 2011-10-06 | Goliath Power Ventures (Pty) Limited | A system and method for managing resources |
| CN103248049A (en) * | 2013-05-22 | 2013-08-14 | 长沙理工大学 | Method of obtaining electrical power system voltage stability domain tangent plane containing DFIG (Doubly Fed Induction Generator) wind power plant |
| CN104734155A (en) * | 2015-04-14 | 2015-06-24 | 河海大学 | Method of acquiring available transfer capacity of electricity-gas interconnected energy system |
| CN105356447A (en) * | 2015-10-27 | 2016-02-24 | 河海大学 | Analysis method for steady-state security region of electric-pneumatic interconnected integrated energy system |
| CN105930980A (en) * | 2016-06-08 | 2016-09-07 | 河海大学 | Multi-point linearized probability energy flow method of integrated energy system with electricity converting to natural gas |
| CN108875277A (en) * | 2018-07-23 | 2018-11-23 | 长沙理工大学 | Multi-energy flow system static safety analysis method considering natural gas system N-1 |
Non-Patent Citations (2)
| Title |
|---|
| 刘天琪: "《现代电力系统分析理论与方法》", 31 August 2007 * |
| 王伟亮，王丹，贾宏杰: "考虑天然气网络状态的电力–天然气区域综合能源系统稳态分析", 《中国电机工程学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112725A (en) * | 2019-04-25 | 2019-08-09 | 中国电力科学研究院有限公司 | A kind of construction method and device on the power grid steady stability domain boundary of information driving |
| CN110112725B (en) * | 2019-04-25 | 2023-01-31 | 中国电力科学研究院有限公司 | Information-driven power grid static stability domain boundary construction method and device |
| CN111769603A (en) * | 2020-07-13 | 2020-10-13 | 国网天津市电力公司 | Unit optimal scheduling method based on safety margin of electric-gas coupling system |
| CN111769603B (en) * | 2020-07-13 | 2022-04-08 | 国网天津市电力公司 | Unit optimal scheduling method based on safety margin of electric-gas coupling system |
| CN114285037A (en) * | 2022-03-07 | 2022-04-05 | 天津大学 | Method for determining control parameter stability region of regional electricity-gas integrated energy system |
| CN114285037B (en) * | 2022-03-07 | 2022-05-27 | 天津大学 | Method for determining control parameter stability region of regional electricity-gas integrated energy system |
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Application publication date: 20181207 |