CN104269866A - Forced oscillation disturbance source identification and splitting method based on oscillation starting characteristic - Google Patents
Forced oscillation disturbance source identification and splitting method based on oscillation starting characteristic Download PDFInfo
- Publication number
- CN104269866A CN104269866A CN201410275675.7A CN201410275675A CN104269866A CN 104269866 A CN104269866 A CN 104269866A CN 201410275675 A CN201410275675 A CN 201410275675A CN 104269866 A CN104269866 A CN 104269866A
- Authority
- CN
- China
- Prior art keywords
- source region
- disturbing source
- line
- oscillation
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a forced oscillation disturbance source identification and splitting method based on an oscillation starting characteristic and belongs to the technical field of emergency adjustment and control in an electric power system. According to the method, the oscillation starting characteristic of forced oscillation and a disturbance source location energy function method are combined, the correct position is identified from a plurality of suspected disturbance source areas, and if the disturbance source area meets the condition of electric energy supply and demand balance and no island exists in the non-disturbance source areas, a connection fracture surface line between the area where a disturbance source is located and a system can be split; otherwise, the identified area where the disturbance source is located serves as an initial island, adjacent nodes of the island are searched for, and the connection fracture surface is adjusted till the requirement for electric energy supply and demand balance is met and the condition that power grids remaining after splitting are connected is met. The method solves the problem about positioning of the disturbance source in forced oscillation control. Through the method, splitting control measures can be given in real time when oscillation is detected, and the method has great significance in suppressing oscillation and guaranteeing stable running of interconnected electric power systems.
Description
Technical field
The invention belongs to POWER SYSTEM EMERGENCY control technique field, more precisely, the present invention relates to a kind of method being applicable to then carry out disturbing source identification when electrical network forces low-frequency oscillation disturbing source off-the-line.
Background technology
Perfect along with all kinds of damping control apparatus in the enhancing of electric power system grid structure and system, underdamping type low-frequency oscillation less generation traditional at present, forced oscillation becomes the principal mode of current low-frequency oscillation accident.Due to forced oscillation have that disturbing source is clear and definite, after Eliminating disturbance system oscillation can automatically calm down, therefore Location perturbation source by disturbing source off-the-line from system, be the effective means suppressing forced oscillation.
Along with wide-area monitoring systems (WAMS) popularization in China's electrical network, high pressure, ultra high voltage bus are equipped with synchronous phase angle measurement mechanism (PMU) substantially, and this makes quick position disturbing source become possibility.In the existing research of forced oscillation disturbance source locating method, energy function method is one of main developing direction.Yu Yipings etc. are in " Automation of Electric Systems " (2010,34 (5): 1-6) delivered " the forced power oscillation disturbance source locating based on energy function ", propose by key node connect branch road potential energy flow into, flow out the general orientation that node situation can judge disturbing source online.Hu Wei etc. are in high voltage technique (2012,38 (4): 1006-1011) " the regional power grid forced power oscillation disturbance source locating based on dissipation power " has been delivered, stationary component in selection potential variation rate, as judging the foundation that potential energy flows to, wherein defines dissipation power P
disfor:
In this formula, A
1with
be respectively power variation amplitude and the initial phase angle of variable quantity, A
2with
be respectively angular frequency variable quantity amplitude and the initial phase angle of variable quantity.If P
disfor just, representing that potential energy is transmitted to line end from circuit head end; If P
disbe negative, represent that potential energy flows to head end from line end.According to the flow direction of potential energy on circuit, disturbing source place node can be judged.This process simplify the criterion of energy function method, but still be subject to PMU and layout the restriction of condition.Because disturbing source is usually located at the lower unit of electric pressure or load, and PMU device is provided to the higher node of electric pressure, when PMU measuring point cannot cover disturbing source place plant stand, may occur picking out multiple disjunct doubtful disturbing source region.
And according to patent " prime mover disturbance source locating method of the initiation forced power oscillation " content that (ZL201110091805.8) announces, forced oscillation has the starting of oscillation stage.Due to the existence of inertial element in electric power networks, the measuring point nearer apart from disturbing source electrical distance respectively measures starting of oscillation phase place will be ahead of distance disturbing source electrical distance measuring point far away, and this characteristic can be used for disturbance source locating foundation.But because the starting of oscillation transient process of forced oscillation is ofer short duration, this criterion error is comparatively large, and service condition is harsher.
Meanwhile, much research has been carried out to the Active Splitting problem of electrical network both at home and abroad, but the research of existing Active Splitting is conceived to Out-of-Step Splitting Systems problem, lacks research to off-the-line forced oscillation disturbing source region.In " guiding rules of power system safety and stability " (DL755-2001), regulation electrical network should be divided into the power supply zone of several try one's best generating and load balancings, matched in disturbing source position and the actual subregion of electrical network, off-the-line section is the interconnection between this subregion and remaining electrical network.But, if in the actual subregion of this electrical network, electric energy unbalanced supply-demand amount is excessive, unnecessary energy loss can be caused.
Summary of the invention
The present invention seeks to: for identifying disturbing source and off-the-line electrical network Problems existing in prior art, the present invention will identify in above-mentioned prior art that two kinds of methods of disturbing source combine, from multiple suspicious region, the tram of disturbing source is identified based on start-oscillation characteristic, and in conjunction with the feature of disturbing source off-the-line, the cross section regulation rule being applicable to disturbing source region off-the-line is proposed, using disturbing source position as initial isolated island, the adjacent node of search isolated island adjusts off-the-line section, to meet off-the-line condition, reach the object of Active Splitting disturbing source.
Specifically, the present invention realizes by the following technical solutions, comprises the steps:
1) when system generation forced power oscillation, the potential energy calculating PMU Monitoring Line with energy function method flows to;
If exist all connection line potential energy flow to only go out a certain node do not entered, then using this node as disturbing source, now disturbing source region only includes this node;
When PMU measuring point cannot cover disturbing source place node, flow to according to the potential energy of PMU Monitoring Line and determine multiple doubtful disturbing source region, calculate in each region that PMU Monitoring Line is in the phase place in starting of oscillation stage, the region connected by most for phase place leading line is as disturbing source region;
2) using the contact section between disturbing source region and remaining system as initial off-the-line section, if section off-the-line causes non-disturbing source region to form isolated island, then initial off-the-line section is redefined after isolated island being included into disturbing source region;
If the disturbing source region more than determined meets the condition of the electric energy equilibrium of supply and demand, then using initial off-the-line section as disturbing source region off-the-line scheme, otherwise, the disturbing source region identified is searched for as initial isolated island isolated island adjacent node, adjustment contact section until meet the electric energy equilibrium of supply and demand condition and after off-the-line remaining electrical network be communicated with, using the contact section circuit after adjustment as disturbing source region off-the-line scheme.
Technique scheme is further characterized in that: described step 1) specifically comprise the following steps:
1-1) when system generation forced power oscillation, the potential energy calculating PMU Monitoring Line with energy function method flows to, if exist all connection line potential energy flow to only go out a certain node do not entered, then using this node as disturbing source, now disturbing source region only includes this node; Otherwise, enter step 1-2);
1-2) delete potential energy flow into node and carry out topological analysis, determine the node set without annexation formed thus; If set is unique, using this node set as disturbing source region; Otherwise, using each node set without annexation as doubtful disturbing source region, enter step 1-3);
If 1-3) there is connection line potential energy to flow to the doubtful disturbing source region being outflow, using this region as disturbing source region; Otherwise to the circuit of PMU monitoring in the connection line of doubtful disturbing source region node set, calculate the phase place of forced oscillation starting stage circuit active power curves, the region connected by most for starting of oscillation phase place leading line is as disturbing source region.
Technique scheme is further characterized in that: described step 2) in disturbing source region off-the-line scheme should meet the following conditions:
(1) need after off-the-line to meet isolated island power-balance condition: namely isolated island unbalanced power amount must not be greater than the maximum permissible value of unit shut algorithm under this region emergency work condition;
(2) connectedness ensureing residue electrical network is needed after off-the-line: namely off-the-line section can not cause non-Disturbing source region domain node to form isolated island.
Technique scheme is further characterized in that: described step 2) specifically comprise the following steps:
2-1) using the contact section between disturbing source region and remaining system as initial off-the-line section, if section off-the-line causes non-disturbing source region to form isolated island, then redefine initial off-the-line section after isolated island being included into disturbing source region;
If the disturbing source region more than determined meets the condition of the electric energy equilibrium of supply and demand, then using initial off-the-line section as disturbing source region off-the-line scheme, enter step 2-7); Otherwise, enter step 2-2);
2-2) revise node set by forming with the non-Disturbing source region domain node that disturbing source region is directly connected;
2-3) judge to revise in node set whether have the node making disturbing source region meet the be included into disturbing source region of power-balance condition, if had, enter step 2-4), then do not enter step 2-6);
2-4) when the generating of disturbing source region is greater than load, if certain load bus revised in node set be included into disturbing source region can not cause off-the-line after non-disturbing source region form isolated island, be then classified to disturbing source region;
When the load of disturbing source region is greater than generating, if certain the generator node revised in node set be included into disturbing source region can not cause off-the-line after non-disturbing source region form isolated island, be then classified to disturbing source region;
If 2-5) disturbing source region meets isolated island power-balance condition, then enter step 2-7); Otherwise, enter step 2-6);
2-6) by the adjacent node outside the disturbing source region of correction node set interior nodes, be also included in this set, return step 2-4);
2-7) suggestion carries out off-the-line operation to the contact section circuit of disturbing source region and system, forms the off-the-line scheme in forced oscillation disturbing source region.
Beneficial effect of the present invention is as follows: the present invention is when PMU measuring point cannot cover disturbing source place plant stand, the start-oscillation characteristic of forced oscillation is combined with disturbance source locating energy function method, tram is identified from multiple doubtful disturbing source region, and for ensureing after off-the-line that electrical network can safe and stable operation, adjustment off-the-line section is until disturbing source region meets the condition of the electric energy equilibrium of supply and demand and there is not isolated island in non-disturbing source region.The start-oscillation characteristic of forced oscillation combines with disturbance source locating energy function method by the present invention, from multiple doubtful disturbing source region, effectively can identify tram, thus when overcoming existing patented technology Location perturbation source in criterion error is comparatively large, service condition is harsher defect.Meanwhile, the present invention until meet the electric energy equilibrium of supply and demand and the condition that after off-the-line, remaining electrical network is communicated with, also overcomes the problem of the energy loss that off-the-line section brings in prior art by adjustment contact section.Therefore, the invention solves a difficult problem for the disturbance source locating that forced oscillation controls, utilizing the present invention when detecting that vibration occurs, islanding control measure can be provided in real time, to suppressing vibration, ensureing that the stable operation of interconnected electric power system has great significance.
Accompanying drawing explanation
Fig. 1 is the flow chart of the inventive method.
Fig. 2 is the south electric network some areas power grid architecture exemplary plot in the embodiment of the present invention.
Fig. 3 be factory seven line in the embodiment of the present invention, factory and line and the beautiful line of ink marker starting of oscillation time active power curves figure.
Embodiment
With reference to the accompanying drawings and in conjunction with example, the present invention is described in further detail.
What in Fig. 1, step 1-1 described is when system generation forced power oscillation, the potential energy calculating PMU Monitoring Line with energy function method flows to, if there is all connection line potential energy flow direction only go out a certain node do not entered, then using this node as disturbing source, namely disturbing source region only includes this node, enters step 2-1; Otherwise, enter step 1-2.
What in Fig. 1, step 1-2 described is delete potential energy flow into node and carry out topological analysis, determines the node set without annexation formed thus; If set is unique, using this node set as disturbing source region, enter step 2-1; Otherwise, using each node set without annexation as doubtful disturbing source region, enter step 1-3.
If what in Fig. 1, step 3 described is there is connection line potential energy to flow to the doubtful disturbing source region being outflow, using this region as disturbing source region; Otherwise to the circuit of PMU monitoring in the connection line of doubtful disturbing source region node set, calculate the phase place of forced oscillation starting stage circuit active power curves, the region connected by most for starting of oscillation phase place leading line is as disturbing source region; Enter step 2-1.
With an example, step 1-1 in Fig. 1 ~ 1-3 is specifically described below:
Apply on the little dragon's pool unit in Yunnan the mechanical disturbance that frequency is 0.466Hz, excite south electric network forced oscillation, oscillation mode is the inter area oscillation of the whole network.
Fig. 2 is Yunnan Power System some areas power grid architecture schematic diagrames, supposes that Jin You factory mouth and Yuxi node are equiped with PMU device.
Perform step 1-1 in Fig. 1, carry out the calculating of energy function method to the PMU Monitoring Line in this subregion, in Fig. 2, direction shown in arrow is potential energy flow direction, only goes out a certain node do not entered, therefore enter step 1-2 owing to there is not all connection line potential energy flow direction.
Perform step 1-2 in figure, delete potential energy and flow into node (Bao Feng, Yuxi, factory's mouth, Qujing) and carry out topological analysis, form { swath, peace } and { seven pastures, Red River, little dragon's pool, patrol and inspection office, Luoping, Mojiang } two groups of regions, because region is unique, enter step 1-3.
Perform step 1-3 in Fig. 1, because PMU measuring point is incomplete, the contact with foreign countries line potential energy that can not monitor two groups of regions flows to whether be outflow, so judge disturbing source region according to starting of oscillation phase place.The PMU Monitoring Line that { swath, peace } is connected between region with bulk power grid is factory and line, { seven pastures, Red River, little dragon's pool, patrol and inspection office, Luoping, Mojiang } be factory seven line and the beautiful line of ink marker with the PMU Monitoring Line be connected between bulk power grid, the meritorious oscillating curve in above 3 circuit forced oscillation starting of oscillation stages is compared, obtain result in Fig. 3, beautiful line of ink marker starting of oscillation phase place is the most advanced, then judge { seven pastures be connected with the beautiful line of ink marker, Red River, little dragon's pool, patrol and inspection office, Luoping, Mojiang } region is disturbing source region.
What in Fig. 1, step 2-1 described is using the contact section between disturbing source region and remaining system as initial off-the-line section, if section off-the-line causes non-disturbing source region to form isolated island, then redefine initial off-the-line section after isolated island being included into disturbing source region.If the disturbing source region more than determined meets the condition of the electric energy equilibrium of supply and demand, then using initial off-the-line section as disturbing source region off-the-line scheme, enter step 2-7; If disturbing source region can not meet the condition of the electric energy equilibrium of supply and demand, enter step 2-2.
What in Fig. 1, step 2-2 described is revise node set by forming with the non-Disturbing source region domain node that disturbing source region is directly connected.
What in Fig. 1, step 2-3 described is judge to revise in node set whether have the node making disturbing source region meet the be included into disturbing source region of power-balance condition, if had, enter step 2-4, then do not enter step 2-6.
What in Fig. 1, step 2-4 described is when the generating of disturbing source region is greater than load, if certain load bus in correction node set be included into disturbing source region can not cause off-the-line after non-disturbing source region form isolated island, be classified to disturbing source region; When the load of disturbing source region is greater than generating, if certain the generator node revised in node set be included into disturbing source region can not cause off-the-line after non-disturbing source region form isolated island, be classified to disturbing source region.
If what in Fig. 1, step 2-5 described is that disturbing source region meets isolated island power-balance condition, then enter step 2-7; Otherwise, enter step 2-6.
What in Fig. 1, step 2-6 described is by revise node set interior nodes disturbing source region outside adjacent node, be also included in this set, return step 2-4;
What in Fig. 1, step 2-7 described is that the contact section circuit of suggestion to disturbing source region and system carries out off-the-line operation, forms the off-the-line scheme in forced oscillation disturbing source region.
Although the present invention with preferred embodiment openly as above, embodiment is not of the present invention for limiting.Without departing from the spirit and scope of the invention, any equivalence change done or retouching, belong to the protection range of the present invention equally.Therefore the content that protection scope of the present invention should define with the claim of the application is standard.
Claims (4)
1., based on the identification of forced oscillation disturbing source and the off-the-line method of start-oscillation characteristic, it is characterized in that, comprise the following steps:
1) when system generation forced power oscillation, the potential energy calculating PMU Monitoring Line with energy function method flows to;
If exist all connection line potential energy flow to only go out a certain node do not entered, then using this node as disturbing source, now disturbing source region only includes this node;
When PMU measuring point cannot cover disturbing source place node, flow to according to the potential energy of PMU Monitoring Line and determine multiple doubtful disturbing source region, calculate in each region that PMU Monitoring Line is in the phase place in starting of oscillation stage, the region connected by most for phase place leading line is as disturbing source region;
2) using the contact section between disturbing source region and remaining system as initial off-the-line section, if section off-the-line causes non-disturbing source region to form isolated island, then initial off-the-line section is redefined after isolated island being included into disturbing source region;
If the disturbing source region more than determined meets the condition of the electric energy equilibrium of supply and demand, then using initial off-the-line section as disturbing source region off-the-line scheme, otherwise, the disturbing source region identified is searched for as initial isolated island isolated island adjacent node, adjustment contact section until meet the electric energy equilibrium of supply and demand condition and after off-the-line remaining electrical network be communicated with, using the contact section circuit after adjustment as disturbing source region off-the-line scheme.
2. the forced oscillation disturbing source identification based on start-oscillation characteristic according to claim 1 and off-the-line method, it is characterized in that, described step 1) specifically comprises the following steps:
1-1) when system generation forced power oscillation, the potential energy calculating PMU Monitoring Line with energy function method flows to, if exist all connection line potential energy flow to only go out a certain node do not entered, then using this node as disturbing source, now disturbing source region only includes this node; Otherwise, enter step 1-2);
1-2) delete potential energy flow into node and carry out topological analysis, determine the node set without annexation formed thus; If set is unique, using this node set as disturbing source region; Otherwise, using each node set without annexation as doubtful disturbing source region, enter step 1-3);
If 1-3) there is connection line potential energy to flow to the doubtful disturbing source region being outflow, using this region as disturbing source region; Otherwise to the circuit of PMU monitoring in the connection line of doubtful disturbing source region node set, calculate the phase place of forced oscillation starting stage circuit active power curves, the region connected by most for starting of oscillation phase place leading line is as disturbing source region.
3. the forced oscillation disturbing source identification based on start-oscillation characteristic according to claim 1 and off-the-line method, is characterized in that, described step 2) in disturbing source region off-the-line scheme should meet the following conditions:
(1) need after off-the-line to meet isolated island power-balance condition: namely isolated island unbalanced power amount must not be greater than the maximum permissible value of unit shut algorithm under this region emergency work condition;
(2) connectedness ensureing residue electrical network is needed after off-the-line: namely off-the-line section can not cause non-Disturbing source region domain node to form isolated island.
4. the forced oscillation disturbing source identification based on start-oscillation characteristic according to claim 1 and off-the-line method, is characterized in that, described step 2) specifically comprise the following steps:
2-1) using the contact section between disturbing source region and remaining system as initial off-the-line section, if section off-the-line causes non-disturbing source region to form isolated island, then redefine initial off-the-line section after isolated island being included into disturbing source region;
If the disturbing source region more than determined meets the condition of the electric energy equilibrium of supply and demand, then using initial off-the-line section as disturbing source region off-the-line scheme, enter step 2-7); Otherwise, enter step 2-2);
2-2) revise node set by forming with the non-Disturbing source region domain node that disturbing source region is directly connected;
2-3) judge to revise in node set whether have the node making disturbing source region meet the be included into disturbing source region of power-balance condition, if had, enter step 2-4), then do not enter step 2-6);
2-4) when the generating of disturbing source region is greater than load, if certain load bus revised in node set be included into disturbing source region can not cause off-the-line after non-disturbing source region form isolated island, be then classified to disturbing source region;
When the load of disturbing source region is greater than generating, if certain the generator node revised in node set be included into disturbing source region can not cause off-the-line after non-disturbing source region form isolated island, be then classified to disturbing source region;
If 2-5) disturbing source region meets isolated island power-balance condition, then enter step 2-7); Otherwise, enter step 2-6);
2-6), by the adjacent node outside the disturbing source region of correction node set interior nodes, be also included in this set, return step 2-4);
2-7) suggestion carries out off-the-line operation to the contact section circuit of disturbing source region and system, forms the off-the-line scheme in forced oscillation disturbing source region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275675.7A CN104269866B (en) | 2014-06-19 | 2014-06-19 | Forced oscillation disturbing source identification based on start-oscillation characteristic and off-the-line method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275675.7A CN104269866B (en) | 2014-06-19 | 2014-06-19 | Forced oscillation disturbing source identification based on start-oscillation characteristic and off-the-line method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104269866A true CN104269866A (en) | 2015-01-07 |
| CN104269866B CN104269866B (en) | 2016-09-07 |
Family
ID=52161368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410275675.7A Active CN104269866B (en) | 2014-06-19 | 2014-06-19 | Forced oscillation disturbing source identification based on start-oscillation characteristic and off-the-line method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104269866B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340889A (en) * | 2016-10-11 | 2017-01-18 | 河海大学 | Oscillation discrimination and disturbance source positioning method based on oscillation-starting analysis |
| CN106571636A (en) * | 2016-10-21 | 2017-04-19 | 国电南瑞科技股份有限公司 | Forced oscillation disturbance source positioning method based on frequency band-dividing parallel computation |
| CN107910862A (en) * | 2016-10-20 | 2018-04-13 | 广东电网有限责任公司电力调度控制中心 | Synchronous phasor measurement unit Optimal Configuration Method and system |
| CN108053095A (en) * | 2017-11-22 | 2018-05-18 | 全球能源互联网研究院有限公司 | A kind of electrical energy power quality disturbance affair character extracting method and system |
| TWI686615B (en) * | 2018-10-22 | 2020-03-01 | 財團法人工業技術研究院 | Disturbance source positioning method |
| CN114062848A (en) * | 2021-11-15 | 2022-02-18 | 国网安徽省电力有限公司电力科学研究院 | Forced power oscillation disturbance source positioning method and device based on equivalent electrical distance |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120091718A (en) * | 2011-02-09 | 2012-08-20 | 안상호 | Self power generator using pzt element without external power supplying |
| CN102914712A (en) * | 2012-10-18 | 2013-02-06 | 中国电力科学研究院 | System and method for judging negative damped oscillation and forced oscillation based on straight line method |
-
2014
- 2014-06-19 CN CN201410275675.7A patent/CN104269866B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120091718A (en) * | 2011-02-09 | 2012-08-20 | 안상호 | Self power generator using pzt element without external power supplying |
| CN102914712A (en) * | 2012-10-18 | 2013-02-06 | 中国电力科学研究院 | System and method for judging negative damped oscillation and forced oscillation based on straight line method |
Non-Patent Citations (1)
| Title |
|---|
| 董清等: "电网中强迫共振型低频振荡源的自动确定方法", 《中国电机工程学报》, vol. 32, no. 28, 5 October 2012 (2012-10-05), pages 68 - 75 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340889A (en) * | 2016-10-11 | 2017-01-18 | 河海大学 | Oscillation discrimination and disturbance source positioning method based on oscillation-starting analysis |
| CN106340889B (en) * | 2016-10-11 | 2018-10-23 | 河海大学 | Based on the oscillation examination and disturbance source locating method for playing vibration analysis |
| CN107910862A (en) * | 2016-10-20 | 2018-04-13 | 广东电网有限责任公司电力调度控制中心 | Synchronous phasor measurement unit Optimal Configuration Method and system |
| CN107910862B (en) * | 2016-10-20 | 2019-10-08 | 广东电网有限责任公司电力调度控制中心 | Synchronous phasor measurement unit Optimal Configuration Method and system |
| CN106571636A (en) * | 2016-10-21 | 2017-04-19 | 国电南瑞科技股份有限公司 | Forced oscillation disturbance source positioning method based on frequency band-dividing parallel computation |
| CN106571636B (en) * | 2016-10-21 | 2019-11-05 | 国电南瑞科技股份有限公司 | A kind of forced oscillation disturbance source locating method based on frequency-division section parallel computation |
| CN108053095A (en) * | 2017-11-22 | 2018-05-18 | 全球能源互联网研究院有限公司 | A kind of electrical energy power quality disturbance affair character extracting method and system |
| CN108053095B (en) * | 2017-11-22 | 2024-03-19 | 全球能源互联网研究院有限公司 | Power quality disturbance event feature extraction method and system |
| TWI686615B (en) * | 2018-10-22 | 2020-03-01 | 財團法人工業技術研究院 | Disturbance source positioning method |
| US11340601B2 (en) | 2018-10-22 | 2022-05-24 | Industrial Technology Research Institute | Disturbance source positioning method |
| CN114062848A (en) * | 2021-11-15 | 2022-02-18 | 国网安徽省电力有限公司电力科学研究院 | Forced power oscillation disturbance source positioning method and device based on equivalent electrical distance |
| CN114062848B (en) * | 2021-11-15 | 2023-10-03 | 国网安徽省电力有限公司电力科学研究院 | Forced power oscillation disturbance source positioning method and device based on equivalent electrical distance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104269866B (en) | 2016-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104269866A (en) | Forced oscillation disturbance source identification and splitting method based on oscillation starting characteristic | |
| CN102435912B (en) | Method for positioning fault disturbance point in power grid | |
| CN104269809B (en) | Method for on-line verification of relay protection setting value of regional power grid | |
| CN104297638B (en) | Power distribution grid fault positioning method with high precision and low cost | |
| CN103219727B (en) | Partition power grid structure dynamics method of adjustment based on PMU actual measurement | |
| CN103995214A (en) | Overhead line intelligent fault positioning processing system and method thereof | |
| CN106959403B (en) | A kind of distributed generation resource access distribution net work earthing fault detection method | |
| CN104202086A (en) | Optical cable fault location method | |
| CN105391050A (en) | Checking method and system of high-cycle cutting machine configuration scheme | |
| CN104078956A (en) | Self-adaption current quick breaking protection method suitable for power distribution network containing distributed power supplies | |
| CN104502801B (en) | A kind of localization method and system of high voltage transmission line failure | |
| CN109782133A (en) | A kind of multistage cable-transmission line Fault Locating Method | |
| CN105159316A (en) | Three dimensional electric field difference obstacle avoidance method for patrolling charged transmission line by unmanned helicopter | |
| CN103337857A (en) | Voltage wattless control partition method based on generator electrical distance | |
| CN105606897B (en) | Branch insulation impedance monitoring and photovoltaic power generation method, inverter and photovoltaic system | |
| CN104734127A (en) | Self-adaptation ground distance protection method and system | |
| CN104007367B (en) | Fault line selection method in high-voltage direct-current double-line parallel operation | |
| CN104505827A (en) | Closed-loop control method on basis of response information for complicated power systems | |
| CN105372553B (en) | A kind of judgement of electric system step-out and asynchronous oscillation center positioning method based on wide area busbar information | |
| CN105203865A (en) | Working method of on-line test system of distributed power-supply grid-connected inverter and capacitor | |
| CN103235198A (en) | Method for determining phase sequence arrangement modes of conducting wires of same-tower double-circuit transmission lines | |
| CN105738751A (en) | Setting calculation method for bus differential protection current loop line disconnection alarm fixed value | |
| CN105375505A (en) | Method for recognizing AC cross section in strong correlation with DC transient stability | |
| CN108268670B (en) | Power grid stability situation assessment method and system independent of system disturbance track | |
| CN103779834A (en) | Grid-connected access anti-reverse-flow intelligent detection method for distributed power generation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |