CN109217384A - More distributed generation resource power distribution methods based on the sagging control of active phase angle - Google Patents

More distributed generation resource power distribution methods based on the sagging control of active phase angle Download PDF

Info

Publication number
CN109217384A
CN109217384A CN201811250695.3A CN201811250695A CN109217384A CN 109217384 A CN109217384 A CN 109217384A CN 201811250695 A CN201811250695 A CN 201811250695A CN 109217384 A CN109217384 A CN 109217384A
Authority
CN
China
Prior art keywords
phase angle
reference value
distributed generation
generation resource
active
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.)
Pending
Application number
CN201811250695.3A
Other languages
Chinese (zh)
Inventor
吴翔宇
和敬涵
许寅
张放
王思家
张靖
陈刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Jiaotong University
Original Assignee
Beijing Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Jiaotong University filed Critical Beijing Jiaotong University
Priority to CN201811250695.3A priority Critical patent/CN109217384A/en
Publication of CN109217384A publication Critical patent/CN109217384A/en
Pending legal-status Critical Current

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
    • H02J3/48—Controlling the sharing of the in-phase component
    • 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
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in 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]
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units

Abstract

The present invention provides a kind of more distributed generation resource power distribution methods based on the sagging control of active phase angle, comprising: measures the phase angle on common bus by synchronous phasor measuring device and is sent to each distributed generation resource；The phase angle reference value of each distributed generation resource is calculated by the sagging control formula of active phase angle；By phase angle reference value and the pi controller for being input to corresponding distributed generation resource according to the difference of the phase angle on the common bus measured, the phase angle reference value for adjusting each distributed generation resource is all equal with the phase angle on bus, and exports practical phase angle reference value；The d axis reference value and q axis reference value of voltage are calculated by practical phase angle reference value and voltage reference value, carry out power distribution.Present method solves the active power assignment problems in the active sagging control of phase angle of tradition, and each distributed generation resource can be made accurately to share active power.

Description

More distributed generation resource power distribution methods based on the sagging control of active phase angle
Technical field
The present invention relates to micro-capacitance sensor operations and control field more particularly to a kind of more points based on the sagging control of active phase angle Cloth power distribution method.
Background technique
Micro-capacitance sensor (Micro-Grid, MG), also referred to as microgrid refer to by distributed generation resource, energy storage device, energy converting means It sets, the small-sized electric system of load, the compositions such as monitoring and protective device.Micro-capacitance sensor, which is one, can be realized self-contr ol, protects The autonomous system of shield and management, can both be incorporated into the power networks with external electrical network, can also be with independent operating (i.e. isolated operation).And micro- electricity Control strategy when net independent operating is particularly significant for micro-capacitance sensor.
In the control of micro-capacitance sensor isolated operation, the control mode of mainstream is the control of active frequency droop, by by frequency and Voltage controls the power output of distributed generation resource (Distributed Generation, DG) as sag of chain, but this Kind control mode will cause the offset of frequency and voltage, and because being easy to happen frequent load variations in isolated island, may lead Play the even collapse of frequency of biggish frequency departure.In order to solve this problem, the method and distribution of centerized fusion are proposed The method of the method for control, centerized fusion adjusts sagging curve by actual frequency departure on monitoring common bus, from And eliminate frequency departure；The voltage that system frequency and all DG export can be restored to rated value by the method for distributed AC servo system. But traditional active frequency droop control is there is also such as power quality problem, the problems such as low-response, power distribution is not allowed.
In order to avoid using frequency as sag of chain, proposing active phase angle droop control method in the prior art, Fig. 1 is existing There is an active sagging control block diagram of phase angle of tradition in technology, this method passes through the phase angle of sagging DG output voltage, under active phase angle System frequency can be maintained rated value always by vertical control.It is exported further, since voltage converter can be changed with moment The phase angle of voltage, therefore active-phase angle droop control method has faster response speed.However, active-phase of the prior art For the sagging control in angle there is also similar technological deficiency is controlled with traditional active frequency droop, technological deficiency is since route hinders Anti- mismatch and lead to the problem of power distribution inaccuracy.In order to solve this problem, it proposes and increases sagging coefficient to improve The precision of power distribution, but excessively high gain will lead to system unstability.It also proposed a kind of damping controller in the prior art, lead to The power system stabilizer, PSS (Power System Stabilizer, PSS) for crossing simulation synchronous generator, can be in sagging coefficient The stability of lifting system when larger, but still cannot achieve accurate power distribution.
Therefore, a kind of distributed electrical source power based on the sagging control of active phase angle for realizing accurate distribution power point is needed Distribution controlling method.
Summary of the invention
Of the invention provides a kind of more distributed generation resource power distribution methods based on the sagging control of active phase angle, with solution Certainly problem above.
To achieve the goals above, this invention takes following technical solutions.
The present invention provides a kind of more distributed generation resource power distribution methods based on the sagging control of active phase angle, including such as Lower step:
The phase angle on common bus is measured by synchronous phasor measuring device PMU and is sent to each distributed generation resource DG；
The phase angle reference value of each distributed generation resource is calculated by the sagging control formula of active phase angle；
By the phase angle reference value of each distributed generation resource and according to the difference of the phase angle on the common bus measured Be input to the pi controller of corresponding distributed generation resource, adjust the phase angle reference value of each distributed generation resource all with bus On phase angle it is equal, and export practical phase angle reference value；
The d axis reference value and q axis reference value of voltage are calculated by the practical phase angle reference value and voltage reference value, Carry out power distribution.
Further, the phase angle reference value of each distributed generation resource is calculated by the sagging control formula of active phase angle, Including phase angle reference value is calculated as follows:
δrefi=δ0-miPi
Wherein, δ0Phase angle reference value when for distributed generation resource zero load, δrefiFor the phase angle reference of i-th of distributed generation resource Value, miIt is the active sagging coefficient of i-th of distributed generation resource, P respectivelyiFor the active power of i-th of distributed generation resource output.
Further, practical phase angle reference value is exported, comprising: pi controller calculates practical phase according to the following formula Angle reference value:
Wherein, δLFor the phase angle on common bus, KpiAnd KiiFor the ratio of pi controller in i-th of distributed generation resource Example and integral coefficient, δrefiFor the phase angle reference value of sagging formula output, δ *refiFor the practical phase angle ginseng of i-th of distributed generation resource Examine value.
Further, the phase angle reference value for adjusting each distributed generation resource is all equal with the phase angle on bus, specifically includes:
When the difference of the phase angle in phase angle reference value and common bus is positive number, pi controller output increases, The practical phase angle for exporting DG becomes smaller, on the contrary then can make the phase on common bus so that the phase angle on common bus be made to become larger Angle becomes smaller, until the phase angle reference value of distribution power is equal with phase angle on common bus.
Further, the d axis reference value and q of voltage are calculated by the practical phase angle reference value and voltage reference value Axis reference value carries out power distribution, d axis reference value and q axis reference value including calculating voltage according to the following formula:
Wherein, VrefiFor voltage reference value, VdrefiFor the d axis reference value of voltage, VqrefiFor the q axis reference value of voltage, δ*refiFor the practical phase angle reference value of i-th of distributed generation resource.
As seen from the above technical solution provided by the invention, more points based on the sagging control of active phase angle of the invention Cloth power distribution method can accurately distribute the active power of each distributed generation resource in micro-capacitance sensor.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others Attached drawing.
Fig. 1 is the sagging control block diagram of the active phase angle of tradition in the prior art；
Fig. 2 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 1 provides Method flow chart；
Fig. 3 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 1 provides The control block diagram of method；
Fig. 4 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 1 provides The micro-capacitance sensor schematic diagram of method；
Fig. 5 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 2 provides The micro-capacitance sensor schematic diagram of method；
Fig. 6 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 2 provides The active power of output variation diagram of method.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
In order to facilitate understanding of embodiments of the present invention, it is done by taking several specific embodiments as an example below in conjunction with attached drawing further Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
More distributed generation resource power distribution methods based on the sagging control of active phase angle of the invention, it is intended to by each A pi controller is added in the control section of distributed generation resource, and the phase angle reference value for adjusting each distributed generation resource tends to Unanimously, so as to so that the active power of all distributed generation resources is accurately distributed according to its sagging coefficient.
Embodiment 1
Fig. 2 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 1 provides Method flow chart, Fig. 3 are more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 1 provides The control block diagram of method, Fig. 4 are more distributed electrical source power based on the sagging control of active phase angle point that the embodiment of the present invention 1 provides The micro-capacitance sensor schematic diagram of method of completing the square, referring to Fig. 2, Fig. 3 and Fig. 4, this method comprises the following steps:
S1 is measured on common bus by synchronous phasor measuring device (Phasor Measurement Unit, PMU) Phase angle is simultaneously sent to each distributed generation resource (Distributed Generation, DG).
The phase angle reference value of each distributed generation resource is calculated by the sagging control formula of active phase angle by S2；Including by such as Lower formula (1) calculates phase angle reference value:
δrefi=δ0-miPi(1)
Wherein, δ0Phase angle reference value when for distributed generation resource zero load, δrefiFor the phase angle reference of i-th of distributed generation resource Value, miIt is the active sagging coefficient of i-th of distributed generation resource, P respectivelyiFor the active power of i-th of distributed generation resource output.
S3 is by the phase angle reference value of each distributed generation resource and according to the difference of the phase angle on the common bus measured Value is input to the pi controller of corresponding distributed generation resource, adjust the phase angle reference value of each distributed generation resource all with mother Phase angle on line is equal, and exports practical phase angle reference value；Thus the phase angle reference value δ that formula obtainsrefi, the δ that is measured with PMULPhase Subtract and be input to pi controller, pi controller calculates practical phase angle reference value according to the following formula (2):
Wherein, δLFor the phase angle on common bus, KpiAnd KiiFor the ratio of pi controller in i-th of distributed generation resource Example and integral coefficient, δrefiFor the phase angle reference value of sagging formula output, δ *refiFor the practical phase angle ginseng of i-th of distributed generation resource Examine value.
Specifically, when the difference of the phase angle in phase angle reference value and common bus is positive number, pi controller is defeated Increase out, the practical phase angle for exporting DG becomes smaller, on the contrary then can make common bus so that the phase angle on common bus be made to become larger On phase angle become smaller, until the phase angle reference value of distribution power is equal with phase angle on common bus.
Therefore, because the phase angle reference value of each distributed generation resource (DG) is all equal with the phase angle on bus, i.e.,
δref1=δref2=...=δrefN=δL (3)
By formula (1) it is found that having at this time
m1P1=m2P2=...=mNPN (4)
Wherein, m1、m2…mNIt is the active sagging coefficient of the 1st, 2 ... N number of distributed generation resources, P respectively1、P2…PNFor the 1st, The active power of 2 ... N number of distributed generation resource outputs.
S4 is in order to control of ac, usually using Park Transformation from abc coordinate system transformation to dq0 coordinate system, then To under dq0 coordinate system d axis component and q axis component control.Pass through the practical phase angle reference value and voltage reference value The d axis reference value and q axis reference value of voltage are calculated, power distribution is carried out.
Utilize δ* refiAnd VrefiIt can be obtained by the d axis reference value V of voltagedrefiWith q axis reference value Vqrefi, according to following formula (5) The d axis reference value and q axis reference value that voltage is calculated with formula (6), according to the reference value V of voltage d axis and q axisdrefiAnd VqrefiIt is right DGiThe voltage of output is controlled, so that it may realize that active power is accurately distributed by formula (4).
Wherein, VrefiFor voltage reference value, VdrefiFor the d axis reference value of voltage, VqrefiFor the q axis reference value of voltage,For the practical phase angle reference value of i-th of DG.
Embodiment 2
The present embodiment 2 is the micro-grid system for containing two DG as example and is based on active phase to proposed by the present invention More distributed generation resource power distribution method validity of the sagging control in angle are verified, embodiment 2 provide based on active phase angle The micro-capacitance sensor schematic diagram of more distributed generation resource power distribution methods of sagging control is as shown in figure 5, the present invention verifies validity As a result from business simulation software (Power Systems Computer Aided Design, PSCAD).Micro-capacitance sensor design Parameter is as follows:
Route is impedance type route, and resistance value is 0.14 Ω, and reactance value is 0.4082 Ω；Load 1 is 10kW+ 10kVar, load 2 are 15kW+5kVar, and load 3 is 20kW+20kVar, and load 4 is 10kW+10kVar；Every DG is active sagging Coefficient is respectively m1=1.5, m2=1, and therefore, the active power ratio that theoretically should have two DG to undertake is 2:3.
The system emulation time totally 3 seconds.In order to compare, when initial launch, does not use method of the invention, and does not access Load 4.The distribution method incorporated in the present invention at 1 second accesses load 4 at 2 seconds.
Fig. 6 is more distributed generation resource power distribution sides based on the sagging control of active phase angle that the embodiment of the present invention 2 provides The active power of output variation diagram of method, referring to Fig. 6, before 1 second, the active power output of two DG be respectively 17.7kW and 23.6kW.It can be seen that the ratio and preset ratio 2:3 have certain gap, active power cannot be accurately distributed at this time.At 1 second To between 2 seconds, due to having used control method of the invention, the output of DG active power is respectively 16.53kW and 24.8kW, is met The ratio of 2:3.After 2 seconds investment loads 4, the output of DG active power is respectively 19.5kW and 29.2kW, and ratio is still accurately kept In 2:3.Simulation results show more distributed generation resource power distribution methods of the invention based on the sagging control of active phase angle Validity.
In conclusion the embodiment of the present invention is by being added a proportional integration control in the control section of each distributed generation resource Device processed, phase angle size on the common bus which measures according to miniature synchronous phasor measuring device, adjusts the phase of each DG Angle reference value reaches unanimity, so as to so that the active power output of all DG is accurately distributed according to its sagging coefficient.This method solves Active power assignment problem in the traditional active sagging control of phase angle, can make each DG accurately share active power.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, and the process in attached drawing is simultaneously It is not necessarily necessary to the implementation present invention.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims Subject to.

Claims (5)

1. a kind of more distributed generation resource power distribution methods based on the sagging control of active phase angle, which is characterized in that including as follows Step:
The phase angle on common bus is measured by synchronous phasor measuring device PMU and is sent to each distributed generation resource DG；
The phase angle reference value of each distributed generation resource is calculated by the sagging control formula of active phase angle；
It is inputted by the phase angle reference value of each distributed generation resource and according to the difference of the phase angle on the common bus measured To the pi controller of corresponding distributed generation resource, the phase angle reference value of each distributed generation resource is adjusted all and on bus Phase angle is equal, and exports practical phase angle reference value；
The d axis reference value and q axis reference value of voltage are calculated by the practical phase angle reference value and voltage reference value, are carried out Power distribution.
2. the method according to claim 1, wherein described is calculated by the sagging control formula of active phase angle To the phase angle reference value of each distributed generation resource, including phase angle reference value is calculated as follows:
δrefi=δ0-miPi
Wherein, δ0Phase angle reference value when for distributed generation resource zero load, δrefiFor the phase angle reference value of i-th of distributed generation resource, mi It is the active sagging coefficient of i-th of distributed generation resource, P respectivelyiFor the active power of i-th of distributed generation resource output.
3. the method according to claim 1, wherein the practical phase angle reference value of the output, comprising: ratio product Sub-controller calculates practical phase angle reference value according to the following formula:
Wherein, δLFor the phase angle on common bus, KpiAnd KiiFor pi controller in i-th of distributed generation resource ratio and Integral coefficient, δrefiFor the phase angle reference value of sagging formula output, δ *refiFor the practical phase angle reference of i-th of distributed generation resource Value.
4. the method according to claim 1, wherein the phase angle reference value of each distributed generation resource of adjusting It is all equal with the phase angle on bus, it specifically includes:
When the difference of the phase angle in phase angle reference value and common bus is positive number, pi controller output increases, and makes DG The practical phase angle of output becomes smaller, on the contrary then the phase angle on common bus can be made to become so that the phase angle on common bus be made to become larger It is small, until the phase angle reference value of distribution power is equal with phase angle on common bus.
5. the method according to claim 1, wherein described passes through the practical phase angle reference value and voltage Reference value calculates the d axis reference value and q axis reference value of voltage, carries out power distribution, including calculate electricity according to the following formula The d axis reference value and q axis reference value of pressure:
Wherein, VrefiFor voltage reference value, VdrefiFor the d axis reference value of voltage, VqrefiFor the q axis reference value of voltage, δ *refiFor The practical phase angle reference value of i-th of distributed generation resource.
CN201811250695.3A 2018-10-25 2018-10-25 More distributed generation resource power distribution methods based on the sagging control of active phase angle Pending CN109217384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811250695.3A CN109217384A (en) 2018-10-25 2018-10-25 More distributed generation resource power distribution methods based on the sagging control of active phase angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811250695.3A CN109217384A (en) 2018-10-25 2018-10-25 More distributed generation resource power distribution methods based on the sagging control of active phase angle

Publications (1)

Publication Number Publication Date
CN109217384A true CN109217384A (en) 2019-01-15

Family

ID=64996994

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811250695.3A Pending CN109217384A (en) 2018-10-25 2018-10-25 More distributed generation resource power distribution methods based on the sagging control of active phase angle

Country Status (1)

Country Link
CN (1) CN109217384A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110020407A (en) * 2019-02-28 2019-07-16 北京交通大学 A kind of data compression iterative calculation method based on principal component analysis
CN110957766A (en) * 2019-12-25 2020-04-03 杨照龙 Automatic control equipment based on droop control and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040051387A1 (en) * 2002-09-17 2004-03-18 Lasseter Robert H. Control of small distributed energy resources
CN105162134A (en) * 2015-08-26 2015-12-16 电子科技大学 Novel microgrid system, power balance control strategy and small-signal modeling method therefor
CN107181281A (en) * 2017-06-22 2017-09-19 同济大学 Circulation inhibition method between a kind of isolated island microgrid shunt chopper
CN107887919A (en) * 2016-09-30 2018-04-06 中国电力科学研究院 A kind of distributed energy storage inverter control method for coordinating and system
CN107994564A (en) * 2017-10-27 2018-05-04 东南大学 The Multi Time Lag micro-capacitance sensor voltage method for analyzing stability of feature based root cluster

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040051387A1 (en) * 2002-09-17 2004-03-18 Lasseter Robert H. Control of small distributed energy resources
CN105162134A (en) * 2015-08-26 2015-12-16 电子科技大学 Novel microgrid system, power balance control strategy and small-signal modeling method therefor
CN107887919A (en) * 2016-09-30 2018-04-06 中国电力科学研究院 A kind of distributed energy storage inverter control method for coordinating and system
CN107181281A (en) * 2017-06-22 2017-09-19 同济大学 Circulation inhibition method between a kind of isolated island microgrid shunt chopper
CN107994564A (en) * 2017-10-27 2018-05-04 东南大学 The Multi Time Lag micro-capacitance sensor voltage method for analyzing stability of feature based root cluster

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ENRIQUE ESPINA等: "Active power angle droop control per phase for unbalanced 4-wire microgrids", 《2017 IEEE SOUTHERN POWER ELECTRONICS CONFERENCE (SPEC)》 *
SIJIA WANG等: "A Novel Angle Droop Control Method Based on PMU Measurement for Accurate Power Sharing of Multiple Distributed Generators", 《2018 IEEE 8TH ANNUAL INTERNATIONAL CONFERENCE ON CYBER TECHNOLOGY IN AUTOMATION, CONTROL, AND INTELLIGENT SYSTEMS (CYBER)》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110020407A (en) * 2019-02-28 2019-07-16 北京交通大学 A kind of data compression iterative calculation method based on principal component analysis
CN110020407B (en) * 2019-02-28 2020-12-22 北京交通大学 Data compression iterative computation method based on principal component analysis
CN110957766A (en) * 2019-12-25 2020-04-03 杨照龙 Automatic control equipment based on droop control and control method thereof
CN110957766B (en) * 2019-12-25 2021-03-23 杨照龙 Automatic control equipment based on droop control and control method thereof

Similar Documents

Publication Publication Date Title
CN111541274B (en) Island micro-grid control method based on virtual synchronous generator characteristics
CN107248756B (en) Control method for improving parallel power distribution precision of multiple inverters in micro-grid
CN103236702B (en) Microgrid reactive power balanced allocation method based on impedance composite control
CN108767864A (en) A kind of out-of-limit suppressing method of distribution network voltage fluctuation based on flexible multimode switch
CN108923460A (en) The method for parameter configuration that microgrid virtual synchronous machine multi-machine parallel connection dynamic unanimously responds
CN103259268A (en) Microgrid reactive-voltage control device and control method thereof
CN109617082B (en) Transient stability control method for inhibiting voltage frequency of micro-grid from exceeding limit
CN108448607A (en) A kind of micro-capacitance sensor battery energy storage system and off-network switching method and apparatus
CN109617112B (en) Improved direct-current voltage control strategy applicable to multi-terminal flexible direct-current system
KR20150045223A (en) Method and Apparatus for Controlling Doubly-fed Induction Generator using Adaptive Backstepping Control Scheme
CN109217384A (en) More distributed generation resource power distribution methods based on the sagging control of active phase angle
Firdaus et al. Auxiliary signal‐assisted droop‐based secondary frequency control of inverter‐based PV microgrids for improvement in power sharing and system stability
CN108574276A (en) A kind of direct-current grid power-sharing control method and system based on frequency injection
JP6693595B1 (en) Grid interconnection device
Wang et al. The fault analysis method of islanded microgrid based on the U/f and PQ control strategy
CN108039720A (en) A kind of definite method and apparatus of alternating current-direct current combined hybrid system total transfer capability
CN104934973A (en) Power line loss calculation method considering temperature
Chen et al. Control induced explicit time-scale separation to attain dc voltage stability for a vsc-hvdc terminal
Miller et al. Coordinated voltage control for multiple wind plants in Eastern Wyoming: Analysis and field experience
CN107508313B (en) A kind of micro-capacitance sensor and off-network control method and device
CN110429578A (en) A kind of distributed DC grid control method
CN112086996B (en) Agent-based improved droop control method for parallel inverter
CN104505847A (en) Micro-grid droop control optimizing method based on sliding-mode control
CN112039105A (en) Alternating current power grid frequency oscillation suppression method for high-voltage direct current transmission line interconnection
CN109586276B (en) Alternating current and direct current network power flow control method and device containing flexible direct current transmission

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20190115

RJ01 Rejection of invention patent application after publication