CN106451528A - Large-scale wind power off-grid control method based on compressive coordination and optimization of FACTS and HVDC - Google Patents
Large-scale wind power off-grid control method based on compressive coordination and optimization of FACTS and HVDC Download PDFInfo
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- CN106451528A CN106451528A CN201610629241.1A CN201610629241A CN106451528A CN 106451528 A CN106451528 A CN 106451528A CN 201610629241 A CN201610629241 A CN 201610629241A CN 106451528 A CN106451528 A CN 106451528A
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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
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a large-scale wind power off-grid control method based on compressive coordination and optimization of an FACTS and HVDC, and belongs to the technical fields of a power system and automation thereof. The coordination and optimization method for the FACTS and the HVDC with the minimum wind power off-grid control cost is found by means of taking EEAC quantitative analysis theory as the basic theory based on improved sensitivity of collected bus voltage fluctuation of a wind power plant under the premise of ensuring the system safety, and by means of coordinating and optimizing FACTS equipment, stationing and capacity configuration before accidents and direct current emergency power modulation after accident. By adoption of the large-scale wind power off-grid control method, suppression of the wind power off-grid and economic operation of the power grid can be realized, so that technological support is provided for the AC-DC hybrid power grid operation and large-scale utilization of new energy of China.
Description
Technical field
The invention belongs to Power System and its Automation technical field, more precisely the present invention relates to one kind is comprehensive
The large-scale wind power off-grid control method of FACTS and HVDC coordination optimization.
Background technology
At present, China HVDC (D.C. high voltage transmission) technology is extensively applied, and is in extra-high voltage alternating current-direct current series-parallel connection bulk power grid
The deeply transitional period of development, " tetanic weak friendship " feature substantially, accessed based on electrical network mode by many concentration with scale of wind-powered electricity generation.But,
Raising with generation of electricity by new energy accounting and the repeatedly extensive blower fan off-grid event occurring in recent years constantly occur, and all show me
The potential risk of state's extensive blower fan off-grid is still very important.These potential risks point out us, on the one hand need to improve wind-powered electricity generation and set
Standby relate to net ability and to wind-powered electricity generation place managerial skills, also need actively to improve the suppression to wind-powered electricity generation off-grid accident risk on the other hand
Ability, optimizes dynamic passive compensation equipment in wind energy turbine set.
With the Fast Construction of China's intelligent grid, extra-high voltage DC transmission system and various Survey of Flexible AC Transmission System
Being used widely in China's actual electric network of (Flexible AC Transmission System, FACTS) equipment,
Make the operation control of electrical network more flexible and economical, also provide new control for China's wind-powered electricity generation extensive off-grid problem in recent years
Technology processed.But how comprehensive FACTS and HVDC coordinates and optimizes, and not yet has the solution of maturation at present.
Content of the invention
The present invention seeks to：In order to solve comprehensive FACTS and HVDC coordination optimization problem in prior art, provide a kind of wind
Electric off-grid controls the coordination optimizing method of FACTS and HVDC of Least-cost, realizes the suppression of wind-powered electricity generation off-grid and the economy of electrical network
Run.
Specifically, the present invention employs the following technical solutions realization：Big with comprehensive FACTS and HVDC coordination optimization
Scale wind-powered electricity generation off-grid Controlling model is Optimized model, the DC power modulation control strategy of the configuration to FACTS equipment and HVDC
Coordinate optimization it is considered to safe and stable operation restraint condition, blower fan off-grid suppression under forecast failure is chosen by Optimized model
Control the strategy execution of Least-cost, described FACTS equipment is SVC and controllable parallel reactors；
The large-scale wind power off-grid Controlling model of described comprehensive FACTS and HVDC coordination optimization is as follows：
S.t. g (x)=0
h(x)≤ε
Wherein, C represents blower fan off-grid suppression control cost under forecast failure, and N is all grid-connected point sets of blower fan installing SVC additional
Close,Represent the SVC capacity that j-th blower fan grid entry point installs additional, α represents the SVC price in units of capacity；L is all adding
The controllable parallel reactors set of dress,Represent the controllable parallel reactors capacity installing additional k-th, β represents with capacity as list
The controllable parallel reactors price of position；O is all DC power modulation set, Pl DCRepresent the power of l-th DC power modulation
Amount, γ represents DC power modulation price；PLWGRepresent blower fan off-grid amount under the premise of guarantee system safety and stability, σ represents unit and takes off
The cost that net amount produces；G (x)=0 is the system equation constraint including power flow equation, and h (x)≤ε is to comprise controlled quentity controlled variable
Capacity limit and the system inequality constraints of system stability requirement.
Technique scheme is further characterized by, and chooses described FACTS device type and configuration according in the following manner
Mount point：
According to Net Frame of Electric Network and characteristic, choose wind energy turbine set and collect the reference point that station bus monitors as voltage margin change,
And choose a number of plant stand bus as FACTS device candidate configuration place in its near region, soft based on EEAC quantitative analysis
Part, emulation forecast failure leeward voltage of electric field monitor reference point initial voltage nargin η, perturbation ask for candidate configuration place install additional
Monitor voltage margin η ' a little after FACTS equipment, ask for voltage margin improved values Δ η it is considered to the configuration cost of FACTS, with Δ η
Control cost performance with the ratio of the configuration cost of FACTS as its voltage, and sort successively, choose the high FACTS of cost performance and set
Standby type and its configuration place.
Technique scheme is further characterized by, and chooses, according in the following manner, the HVDC participating in that dc power is supported：
Determine that dc power support collects the electricity of station bus to wind energy turbine set by offline perturbation or on-line analysis calculation
The sensitivity of pressure impact participates in algorithm for power modulation it is considered to choose the big direct current of sensitivity, and DC power modulation amount is sent receiving-end system
Safety and stability constraint and the constraint of direct current peak load itself.
Beneficial effects of the present invention are as follows：The present invention based on the improvement sensitivity to wind energy turbine set collection bus voltage pulsation,
Premised on ensureing security of system, FACTS equipment is layouted before the coordination optimization accident, HVDC is straight after capacity configuration and accident
Stream algorithm for power modulation, seek a kind of wind-powered electricity generation off-grid control Least-cost FACTS and HVDC coordination optimizing method such that it is able to reality
The existing suppression of wind-powered electricity generation off-grid and the economical operation of electrical network, are Chinese large-sized AC-DC hybrid power grid safe operation and large-scale wind power
Efficient application provide technical support.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
Embodiment 1：
One embodiment of the present of invention, it controls mould with the large-scale wind power off-grid that comprehensive FACTS and HVDC coordinates and optimizes
Type is Optimized model, the direct current work(configuring with HVDC to FACTS equipment (being SVC and controllable parallel reactors in the present embodiment)
Rate modulation control strategy coordinates optimization it is considered to safe and stable operation restraint condition, chooses forecast failure by Optimized model
Lower blower fan off-grid suppression controls the strategy execution of Least-cost.
The large-scale wind power off-grid Controlling model of above-mentioned comprehensive FACTS and HVDC coordination optimization is as follows：
S.t. g (x)=0
h(x)≤ε
Wherein, C represents blower fan off-grid suppression control cost under forecast failure, and N is all grid-connected point sets of blower fan installing SVC additional
Close,Represent the SVC capacity that j-th blower fan grid entry point installs additional, α represents the SVC price in units of capacity；L is all adding
The controllable parallel reactors set of dress,Represent the controllable parallel reactors capacity installing additional k-th, β represents with capacity as list
The controllable parallel reactors price of position；O is all DC power modulation set, Pl DCRepresent the power of l-th DC power modulation
Amount, γ represents DC power modulation price；PLWGRepresent blower fan off-grid amount under the premise of guarantee system safety and stability, σ represents unit and takes off
The cost that net amount produces；G (x)=0 is the system equation constraint including power flow equation, and h (x)≤ε is to comprise controlled quentity controlled variable
Capacity limit and the system inequality constraints of system stability requirement.This system inequality constraints must by system stability analysis Lai
Judge.
In the present embodiment, described FACTS device type and configuration mount point are chosen according in the following manner：According to Net Frame of Electric Network
And characteristic, choose wind energy turbine set and collect the reference point that station bus monitors as voltage margin change, and choose a fixed number in its near region
The plant stand bus of amount configures place as FACTS device candidate, based on EEAC quantitative analysis software, emulates wind-powered electricity generation under forecast failure
Field voltage monitors initial voltage nargin η of reference point, and perturbation is asked for candidate and configured the electricity monitoring after place installs FACTS equipment additional a little
Pressure nargin η ', ask for voltage margin improved values Δ η it is considered to the configuration cost of FACTS, with the ratio of the configuration cost of Δ η and FACTS
Value controls cost performance as its voltage, and sorts successively, chooses the high FACTS device type of cost performance and its configuration place.
In the present embodiment, the HVDC participating in that dc power is supported is chosen according in the following manner：By offline perturbation or online point
Analysis calculation determines that dc power support collects the sensitivity of the voltage influence of station bus it is considered to choose sensitivity to wind energy turbine set
Big direct current participates in algorithm for power modulation, and DC power modulation amount is sent the constraint of receiving-end system safety and stability and direct current peak load itself
Constraint.
Although the present invention is open as above with preferred embodiment, embodiment is not for limiting the present invention's.Not
Depart from the spirit and scope of the present invention, any equivalence changes done or retouching, also belong to the protection domain of the present invention.Cause
The content that this protection scope of the present invention should be defined with claims hereof is as standard.
Claims (3)
1. a kind of large-scale wind power off-grid control method of comprehensive FACTS and HVDC coordination optimization is it is characterised in that with synthesis
The large-scale wind power off-grid Controlling model of FACTS and HVDC coordination optimization is Optimized model, the configuration to FACTS equipment and HVDC
DC power modulation control strategy coordinate optimization it is considered to safe and stable operation restraint condition, chosen by Optimized model
Under forecast failure, the suppression of blower fan off-grid controls the strategy execution of Least-cost, and described FACTS equipment is SVC and controlled parallel reactance
Device；
The large-scale wind power off-grid Controlling model of described comprehensive FACTS and HVDC coordination optimization is as follows：
S.t.g (x)=0
h(x)≤ε
Wherein, C represents blower fan off-grid suppression control cost under forecast failure, and N is all grid-connected point sets of blower fan installing SVC additional,Represent the SVC capacity that j-th blower fan grid entry point installs additional, α represents the SVC price in units of capacity；L is all to be installed additional
Controllable parallel reactors set,Represent the controllable parallel reactors capacity installing additional k-th, β represents in units of capacity
Controllable parallel reactors price；O is all DC power modulation set,Represent the quantity of power of l-th DC power modulation,
γ represents DC power modulation price；PLWGRepresent blower fan off-grid amount under the premise of guarantee system safety and stability, σ represents unit off-grid
The cost that amount produces；G (x)=0 is the system equation constraint including power flow equation, and h (x)≤ε is the appearance comprising controlled quentity controlled variable
The system inequality constraints that amount limits and system stability requires.
2. the large-scale wind power off-grid control method of comprehensive FACTS and HVDC coordination optimization according to claim 1, it is special
Levy and be, described FACTS device type and configuration mount point are chosen according in the following manner：
According to Net Frame of Electric Network and characteristic, choose wind energy turbine set and collect the reference point that station bus monitors as voltage margin change, and
Its near region is chosen a number of plant stand bus and is configured place as FACTS device candidate, based on EEAC quantitative analysis software, imitates
True forecast failure leeward voltage of electric field monitors initial voltage nargin η of reference point, and perturbation is asked for candidate's configuration place and installed FACTS additional
Monitor voltage margin η ' a little after equipment, ask for voltage margin improved values Δ η it is considered to the configuration cost of FACTS, with Δ η and
The ratio of the configuration cost of FACTS controls cost performance as its voltage, and sorts successively, chooses the high FACTS equipment of cost performance
Type and its configuration place.
3. the large-scale wind power off-grid control method of comprehensive FACTS and HVDC coordination optimization according to claim 1, it is special
Levy and be, the HVDC participating in that dc power is supported is chosen according in the following manner：
Determine that dc power supports the voltage influence to wind-powered electricity generation collection bus by offline perturbation or on-line analysis calculation
Sensitivity participates in algorithm for power modulation it is considered to choose the big direct current of sensitivity, and DC power modulation amount is sent receiving-end system safety and stability
Constraint and the constraint of direct current peak load itself.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173276A (en) * | 2017-12-21 | 2018-06-15 | 国电南瑞科技股份有限公司 | The control method of low frequency after a kind of extensive wind turbine off-grid of reply |
| CN110233492A (en) * | 2018-12-23 | 2019-09-13 | 国网内蒙古东部电力有限公司经济技术研究院 | A method of grid stability under direct current locking failure is improved using FACTS technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124075A (en) * | 2013-03-20 | 2013-05-29 | 东南大学 | Reactive power configuration method for wind power base |
| CN103280830A (en) * | 2013-04-27 | 2013-09-04 | 南京南瑞集团公司 | Overload control method suitable for large-scale wind power centralized access |
| CN103337855A (en) * | 2013-05-09 | 2013-10-02 | 国家电网公司 | Electrical network operation risk assessment method of wind electricity large-scale tripping |
| CN104242314A (en) * | 2014-08-26 | 2014-12-24 | 清华大学 | Method for determining network voltage safe threshold value in wind power plant collected area |
| CN105762838A (en) * | 2016-05-13 | 2016-07-13 | 国电南瑞科技股份有限公司 | Reactive voltage multi-target control method of wind power cluster |
-
2016
- 2016-08-03 CN CN201610629241.1A patent/CN106451528B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124075A (en) * | 2013-03-20 | 2013-05-29 | 东南大学 | Reactive power configuration method for wind power base |
| CN103280830A (en) * | 2013-04-27 | 2013-09-04 | 南京南瑞集团公司 | Overload control method suitable for large-scale wind power centralized access |
| CN103337855A (en) * | 2013-05-09 | 2013-10-02 | 国家电网公司 | Electrical network operation risk assessment method of wind electricity large-scale tripping |
| CN104242314A (en) * | 2014-08-26 | 2014-12-24 | 清华大学 | Method for determining network voltage safe threshold value in wind power plant collected area |
| CN105762838A (en) * | 2016-05-13 | 2016-07-13 | 国电南瑞科技股份有限公司 | Reactive voltage multi-target control method of wind power cluster |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173276A (en) * | 2017-12-21 | 2018-06-15 | 国电南瑞科技股份有限公司 | The control method of low frequency after a kind of extensive wind turbine off-grid of reply |
| CN108173276B (en) * | 2017-12-21 | 2020-11-17 | 国电南瑞科技股份有限公司 | Control method for dealing with low frequency of large-scale fan after off-line |
| CN110233492A (en) * | 2018-12-23 | 2019-09-13 | 国网内蒙古东部电力有限公司经济技术研究院 | A method of grid stability under direct current locking failure is improved using FACTS technology |
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