CN105743221A - Black-start comprehensive verification system of power system and method of black-start comprehensive verification system - Google Patents
Black-start comprehensive verification system of power system and method of black-start comprehensive verification system Download PDFInfo
- Publication number
- CN105743221A CN105743221A CN201610165406.4A CN201610165406A CN105743221A CN 105743221 A CN105743221 A CN 105743221A CN 201610165406 A CN201610165406 A CN 201610165406A CN 105743221 A CN105743221 A CN 105743221A
- Authority
- CN
- China
- Prior art keywords
- verification
- data
- black
- power system
- excitation
- 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
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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
Abstract
The invention discloses a black-start comprehensive verification system of a power system and a method of the black-start comprehensive verification system. With the black-start comprehensive verification system, various technological verification problems of black start are solved on the same system platform, verification calculation results of overvoltage verification of a black-start scheme of the power system, voltage frequency verification during starting of an auxiliary machine and self-excitation verification are output by verification calculation of all contents such as overvoltage verification of the given black-start scheme, the voltage frequency verification during starting of the auxiliary machine and the self-excitation verification, and thus, whether the set black-start scheme of the power system is appropriate or not can be effectively determined; and meanwhile, by a friendly pattered human-computer interaction interface, the burdens of system model building and data input/output processing are reduced, result analysis and verification conclusion judgment are automatically carried out, the verification complexity and the working burden of the black-start scheme are greatly reduced, and an effective auxiliary tool is provided for making and revision of the black-start scheme.
Description
Technical field
The present invention relates to power system blackstart technical field, particularly relate to a kind of comprehensive nucleus correcting system of power system blackstart and method thereof.
Background technology
Black starting-up be whole system because, after fault outage, being independent of other system help, by system has self-startup ability unit start drive non self starting unit, gradually expand system power supply scope, finally realize whole system recover process.
In the process of black starting-up, some are had to technical problem is that non-negligible, such as the switching overvoltage that idle-loaded switching-on operation produces, what be activated in power plant's station-service load motor puts into the impact on generator voltage and frequency and the contingent self-excitation problem of generating set.The existence of these problems can result in the failure of black starting-up, thus effective recovery the rapidly of whole electrical network is produced impact.As can be seen here, when formulating black-start scheme, it is necessary to the technology verification that start-up course is correlated with.
Verifying for black starting-up technology, current operations staff generally adopts some business softwares that involved technical problem is verified one by one respectively.This verification mode needs operations staff to carry out system modelling for different software systems, inputoutput data processes, simultaneously because verification conclusion can not intuitively provide, operations staff self manual calculations to be passed through and can complete interpretation of result and conclusion judgement with comparing.This makes black starting-up verification become an extremely complex technical work, and workload is very big, and the requirement of operations staff is also significantly high, is difficult to the requirement meeting black-start scheme rapid development and revision in time, it is impossible to meet the needs that system is run.
Summary of the invention
The present invention is to solve the problems referred to above, propose a kind of comprehensive nucleus correcting system of power system blackstart and method thereof, many technology check problems of black starting-up are completed by the present invention on same system platform, by means of friendly graphical human-computer interaction interface, alleviate the burden of system modelling, data input and output process, and automatically carry out interpretation of result and the judgement of verification conclusion, greatly reducing complexity and the work load of black-start scheme verification, formulation and revision for black-start scheme provide an effective aid.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of comprehensive nucleus correcting system of power system blackstart, including data management module, element graphics module, data interface module and verification computing module, wherein:
Described data management module, including multiple tables of data, preserves the concrete electric parameter of each element of power system；
Described element graphics module, to the drafting of element in power system blackstart scheme, determine black starting-up unit, be activated unit, connection between bus, transformator, circuit and electrical equipment, all pictorial information are stored in the tables of data of data management module；
Described data interface module, it is achieved all input data are to the forwarding of data management module and parsing；
Described verification computing module, read data management module preserve electric parameter, given black-start scheme is carried out overvoltage verification, subsidiary engine start time electric voltage frequency verification or self-excitation verification in full content carry out verification calculate, output verification conclusion.
Data including access data base, are managed adopting the access module of ODBC and data base to interconnect, complete store data in data base and extract the operation of data from data base by described data management module.
Described data management module includes multiple tables of data, specifically include drafting chart, generator table, branch road table, motor table, bus table and reactor table, above-mentioned tables of data storage has the concrete electric parameter of the element of each correspondence in power system, and each tables of data comprises concrete component attributes.
Described element graphics module, user completes the drafting of related elements in power system blackstart scheme by input module, including black starting-up unit, the connection that is activated between unit, bus, transformator, circuit and reactor element and element, after drawing, all of pictorial information is all stored in the drafting chart of data management module.
Described data interface module, carries out the filling of supplemental characteristic for the element drawn in successful black-start scheme by element graphics module, completes by original input data to the conversion verifying desired data, and data be stored in data management module.
Further, black starting-up unit, be activated generator table and motor table that the supplemental characteristic of unit and relevant subsidiary engine is stored in data management module access data base；The bus table that the supplemental characteristic of bus is stored in data management module access data base；Transformator, circuit the supplemental characteristic branch road table that is stored in data management module access data base；The reactor table that the supplemental characteristic of reactor is stored in data management module access data base.
Described verification computing module, electric voltage frequency verification and self-excitation correction verification module when starting including overvoltage verification, subsidiary engine, respectively given black-start scheme is carried out overvoltage verification, subsidiary engine start time electric voltage frequency verification and self-excitation verification in full content carry out verification calculate, or only to therein a certain to two contents carry out verification calculate.
Described verification computing module reads the data generator table, branch road table, motor table, bus table or reactor table from data management module, when overvoltage verification in the black-start scheme draw element graphics module, subsidiary engine start, electric voltage frequency verification and self-excitation verification calculate, and obtain verification conclusion.
Described self-excitation correction verification module internal memory contains engineering criterion method of calibration:
Set electromotor external circuit only by power frequency capacitive reactance xcWith loss resistance r∑Composition, in order to the criterion making self-excitation is more accurate, will main transformer leakage reactance x that self-excitation is influentialTIt is incorporated to electromotor synchronous reactance xd, it is contemplated that the component parameters errors that may be present such as electromotor, transformator, circuit, when actually used Self-Excitation Criterion, appropriate nargin should be left, when meeting formula (1), then will not there is self-excitation phenomenon in system, and self-excitation otherwise occurs:
xc> k (xd+xT)(1)
In formula (1), xcFor power frequency capacitive reactance, xdFor electromotor synchronous reactance, xTFor main transformer leakage reactance, k is nargin coefficient, tries to achieve external circuit equivalence capacitive reactance xcAfter, utilize Self-Excitation Criterion to judge, draw verification conclusion.
The method of work of the comprehensive nucleus correcting system of a kind of power system blackstart, comprises the following steps:
(1) according to given power system blackstart scheme, determine black starting-up unit, be activated unit, connection between bus, transformator, circuit and reactor, to the drafting of related elements in power system blackstart scheme, the information after drawing is preserved；
(2) determine the parameter of each element, configured with draw after power system blackstart scheme in, supplemental characteristic corresponding for each element is stored in the corresponding tables of data of data base；
(3) from tables of data, data are read, given black-start scheme is carried out overvoltage verification, subsidiary engine when starting the full content in electric voltage frequency verification and self-excitation verification carry out verification and calculate, the verification result of calculation of electric voltage frequency verification and self-excitation verification when the verification of the overvoltage of output power system black-start scheme, subsidiary engine start；
(4) if result of calculation meets three verifications simultaneously, then power system blackstart concept feasible, otherwise return step (1) corresponding element connection and parameter are adjusted, revise power system blackstart scheme, until meet three verifications simultaneously.
In described step (2), black starting-up unit, it is activated generator table and motor table that the supplemental characteristic of unit and relevant subsidiary engine is stored in data management module access data base；The bus table that the supplemental characteristic of bus is stored in data management module access data base；Transformator, circuit the supplemental characteristic branch road table that is stored in data management module access data base；The reactor table that the supplemental characteristic of reactor is stored in data management module access data base.
In described step (3), method particularly includes: the engineering criterion check addition of self-excitation verification refers to: set electromotor external circuit only by power frequency capacitive reactance xcWith loss resistance rΣComposition, in order to the criterion making self-excitation is more accurate, will main transformer leakage reactance x that self-excitation is influentialTIt is incorporated to electromotor synchronous reactance xd, it is contemplated that the component parameters errors that may be present such as electromotor, transformator, circuit, when actually used Self-Excitation Criterion, appropriate nargin should be left, when meeting formula (1), then will not there is self-excitation phenomenon in system, and self-excitation otherwise occurs；
xc> k (xd+xT)(1)
Wherein, xcFor power frequency capacitive reactance, xdFor electromotor synchronous reactance, xTFor main transformer leakage reactance, k is nargin coefficient, tries to achieve external circuit equivalence capacitive reactance xcAfter, utilize Self-Excitation Criterion to judge, draw verification conclusion.
The invention have the benefit that
(1) present invention can when need not repeatedly build black starting-up system model, disposable realize overvoltage verification, subsidiary engine start time electric voltage frequency verification and self-excitation verification；
(2) present invention has the graphical human-computer interaction interface of close friend, the process of system modelling, inputoutput data can be conveniently carried out, and can automatically carry out interpretation of result and the displaying of directly perceivedization figure, can formulate and revise effective aid of black-start scheme as system operations staff.
Accompanying drawing explanation
Fig. 1 is the software system structure frame diagram of the present invention；
Fig. 2 is branch road table data in data base；
During Fig. 3 draws, component type selects；
In Fig. 4 drawing course, the dotted line of element shows；
The typing dialog box of Fig. 5 track data；
Fig. 6 black-start scheme path is shown；
The display of Fig. 7 check results；
The figure that when Fig. 8 subsidiary engine starts, checking data shows and draws；
Fig. 9 overvoltage verifies the figure that a certain phase data shows and draws.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described with embodiment.
As it is shown in figure 1, a kind of comprehensive nucleus correcting system of power system blackstart, including four module: data management module, element graphics module, data interface module and verification computing module.Wherein, data management module, it is achieved that preservation and the extraction to software system parameter；Element graphics module, it is achieved that the drafting of element needed for all in black starting-up verification (include black starting-up unit, be activated unit, bus, transformator, circuit, reactor)；Data interface module, it is achieved that all input data of software system are to the forwarding of software system internal model and parsing；Verification computing module, it is achieved that in power system blackstart process, the overvoltage of black-start scheme verify, subsidiary engine when starting electric voltage frequency verification and self-excitation verify.
Described data management module adopts access data base that data are managed, adopt ODBC (Open Database Connectivity, OpenDatabaseConnectivity) access module and data base interconnect, and complete store data in data base and extract the operation of data from data base.This module is connected with element graphics module, data interface module and verification computing module.Data base includes multiple tables of data, including: drafting chart, generator table, branch road table, motor table, bus table, reactor table etc..Wherein drafting chart memory element pictorial information, generator table, branch road table, motor table, bus table, the concrete electric parameter of each element (electromotor, branch road, motor, bus, reactor etc.) in the storage power system such as reactor table, each tables of data comprises concrete component attributes.Such as, in data base, branch road table includes again the data item such as left sibling, right node, branch type, branch road positive sequence resistance, branch road forward-sequence reactance, branch road positive sequence susceptance, branch road zero sequence resistance, branch road zero-sequence reactance, branch road zero sequence susceptance, capacity, leg length, as shown in Figure 2.
The operating process of described element graphics module is: (1) first passes through " picture different elements " menu, select the component type to draw, such as bus, transformator, black starting-up unit, reactor, spark gap, circuit, it is activated unit etc., as shown in Figure 3；(2) then passing through mouse action and complete element drafting (left button is pressed and started to draw element, and left button is upspring and represented that drafting terminates), in drawing process, element is that dotted line shows, draws after successfully, and element shows with solid line, as shown in Figure 4.Consider the practical situation of electrical network, when drawing the elements such as transformator, reactor, circuit, if element starting point or terminating point coordinate do not drop on bus, then the automatic identification decision element of system can not be drawn successfully, so both ensure the accuracy that element is drawn, take into account again the actual property of element in power system.After drawing, all of pictorial information is all stored in data management module in the drafting chart of access data base.
Described data interface module, it is achieved that all input data of system are to the forwarding of internal system and parsing.(black starting-up unit is included for drawing related elements in successful black-start scheme by element graphics module, it is activated unit, bus, transformator, circuit, reactor etc.), user passes through a mouse click right button, will appear from two buttons, one is " deletion image " button, unsatisfied element can be carried out deletion and redraw by this button, another is " system data " button, trigger this button and will eject different data input dialogue frames according to different component types, the supplemental characteristic of element is filled in by user in dialog box, such as, the parameter typing dialog box of track data is as shown in Figure 5.Complete by original input data to the conversion verifying desired data, and data are stored in the access data base in data management module.Wherein, black starting-up unit, be activated generator table and motor table that the supplemental characteristic of unit and relevant subsidiary engine is stored in data management module access data base；The bus table that the supplemental characteristic of bus is stored in data management module access data base；Transformator, circuit the supplemental characteristic branch road table that is stored in data management module access data base；The reactor table that the supplemental characteristic of reactor is stored in data management module access data base.
Described verification computing module, overvoltage verification, subsidiary engine when starting, electric voltage frequency verification and self-excitation verification form.In this module, user determine that given black-start scheme carried out overvoltage verification, subsidiary engine when starting the full content in electric voltage frequency verification and self-excitation verification carry out verification and calculate, or only a certain carry out verification to two contents to therein and calculate；Then the generator table of computing module access data base from data management module is verified, branch road table, motor table, bus table, reading data in reactor table, when starting for the overvoltage verification in black-start scheme, subsidiary engine, electric voltage frequency verification and self-excitation verification calculate；When finally exporting the overvoltage verification of black-start scheme, subsidiary engine startup, the verification of electric voltage frequency verification and self-excitation verification calculates conclusion.Overvoltage in black starting-up process is verified to electric voltage frequency verification when starting with subsidiary engine, except providing verification conclusion, can also derive and export data accordingly and (include simulation time, and the corresponding system frequency of time, busbar voltage, generator terminal voltage etc.), user can utilize these Plotting data to go out to export the waveform of data, and auxiliary determines whether；Engineering criterion check addition is then adopted for self-excitation verification.
Described in verification computing module, the engineering criterion check addition of self-excitation verification refers to: set electromotor external circuit only by power frequency capacitive reactance xcWith loss resistance rΣComposition, in order to the criterion making self-excitation is more accurate, will main transformer leakage reactance x that self-excitation is influentialTIt is incorporated to electromotor synchronous reactance xd, it is contemplated that the component parameters errors that may be present such as electromotor, transformator, circuit, when actually used Self-Excitation Criterion, appropriate nargin should be left, when meeting formula (1), then will not there is self-excitation phenomenon in system, and self-excitation otherwise occurs.
xc> k (xd+xT)(1)
In formula (1), xcFor power frequency capacitive reactance, xdFor electromotor synchronous reactance, xTFor main transformer leakage reactance, k is nargin coefficient, and value is 1.2.System adopts above-mentioned criterion, tries to achieve external circuit equivalence capacitive reactance xcAfter, utilize Self-Excitation Criterion to judge, draw verification conclusion.
Black-start scheme is proposed by operations staff, namely the first step is by drawing component parameters typing relevant for black-start scheme, namely second step is proceed in data base by the data of typing, namely 3rd step is reading data from data base, and namely the data of reading correspond to the black-start scheme that operations staff proposes；If scheme passes through three verifications, then the program is feasible, if the program has one not over verification, then only need to return in the first step and go to adjust wherein very small part data, modify without to data such as whole black starting-up units, the connections that is activated between unit, bus, transformator, circuit and reactor, then proceed to checkschema, till meeting requirement.So " given black-start scheme " is exactly typing in drawing course in the first step.
Below for certain network system black-start scheme of structure, the method for work of the present invention is further described.
Take one by the black-start scheme of hydroelectric power plant to thermal power plant.By as hydroelectric power plant's electromotor of black starting-up power supply in scheme, boosted transformer voltage rises to 220kV, and by way of three-line, last circuit is connected to as the thermal power plant being activated power supply, is connected with conventional load by opening standby change.
(1) element graphics module is utilized, user completes the drafting of related elements in power system blackstart scheme by mouse action, including black starting-up unit, being activated the connection between element and element such as unit, bus, transformator, circuit, reactor, after drawing, all of pictorial information is all stored in data management module in the drafting chart of access data base；Draw the pathway figure of black-start scheme as shown in Figure 6.
(2) data interface module is utilized, it is achieved all input data of system are to the forwarding of internal system and parsing.For drawing related elements in successful black-start scheme (include black starting-up unit, be activated unit, bus, transformator, circuit, reactor etc.) by element graphics module, user clicks element pop-up dialogue box by right mouse button, in dialog box, the supplemental characteristic of element is filled in, complete by original input data to the conversion verifying desired data, and data are stored in the access data base in data management module.Wherein, black starting-up unit, be activated generator table and motor table that the supplemental characteristic of unit and relevant subsidiary engine is stored in data management module access data base；The bus table that the supplemental characteristic of bus is stored in data management module access data base；Transformator, circuit the supplemental characteristic branch road table that is stored in data management module access data base；The reactor table that the supplemental characteristic of reactor is stored in data management module access data base；
(3) after between element, element, connection and various data all successfully construct, utilize verification computing module, first determined that given black-start scheme carried out overvoltage verification by user, subsidiary engine when starting the full content in electric voltage frequency verification and self-excitation verification carry out verification and calculate, or only a certain carry out verification to two contents to therein and calculate；Then the generator table of computing module access data base from data management module is verified, branch road table, motor table, bus table, reading data in reactor table, when starting for the overvoltage verification in black-start scheme, subsidiary engine, electric voltage frequency verification and self-excitation verification calculate；Electric voltage frequency verification and the self-excitation when being sequentially completed the overvoltage verification of black-start scheme, subsidiary engine startup of last property verify, and output verification calculates conclusion.After above-mentioned verification has calculated, verify and exported with the form of text by whether verification calculating conclusion, as shown in Figure 7.Overvoltage in black starting-up process is verified to electric voltage frequency verification when starting with subsidiary engine, except providing verification conclusion, the output data that can also derive derives with the form of data point with the output item of emulation mode verification (include simulation time, and the system frequency of correspondence time, busbar voltage, generator terminal voltage etc.), user can utilize these Plotting data to go out to export the waveform of data, as can be seen from figures 8 and 9, auxiliary determines whether, can be seen that this black-start scheme has passed through overvoltage verification, electric voltage frequency verification and self-excitation verification when subsidiary engine starts, it is feasible.
The specific embodiment of the present invention is described in conjunction with accompanying drawing although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (10)
1. the comprehensive nucleus correcting system of power system blackstart, is characterized in that: include data management module, element graphics module, data interface module and verification computing module, wherein:
Described data management module, including multiple tables of data, preserves the concrete electric parameter of each element of power system；
Described element graphics module, to the drafting of element in power system blackstart scheme, determine black starting-up unit, be activated unit, connection between bus, transformator, circuit and electrical equipment, all pictorial information are stored in the tables of data of data management module；
Described data interface module, it is achieved all input data are to the forwarding of data management module and parsing；
Described verification computing module, read data management module preserve electric parameter, given black-start scheme is carried out overvoltage verification, subsidiary engine start time electric voltage frequency verification or self-excitation verification in full content carry out verification calculate, output verification conclusion.
2. a kind of comprehensive nucleus correcting system of power system blackstart as claimed in claim 1, it is characterized in that: described data management module, including access data base, it is managed data adopting the access module of ODBC and data base to interconnect, completes in data base, store data and from data base, extract the operation of data.
3. a kind of comprehensive nucleus correcting system of power system blackstart as claimed in claim 1, it is characterized in that: described data management module includes multiple tables of data, specifically include drafting chart, generator table, branch road table, motor table, bus table and reactor table, above-mentioned tables of data storage has the concrete electric parameter of the element of each correspondence in power system, and each tables of data comprises concrete component attributes.
4. a kind of comprehensive nucleus correcting system of power system blackstart as claimed in claim 1, it is characterized in that: described element graphics module, user completes the drafting of related elements in power system blackstart scheme by input module, including black starting-up unit, the connection that is activated between unit, bus, transformator, circuit and reactor element and element, after drawing, all of pictorial information is all stored in the drafting chart of data management module.
5. a kind of comprehensive nucleus correcting system of power system blackstart as claimed in claim 1, it is characterized in that: described data interface module, the filling of supplemental characteristic is carried out for the element drawn in successful black-start scheme by element graphics module, complete by original input data to the conversion verifying desired data, and data are stored in data management module.
6. a kind of comprehensive nucleus correcting system of power system blackstart as claimed in claim 1, it is characterized in that: described verification computing module, electric voltage frequency verification and self-excitation correction verification module when starting including overvoltage verification, subsidiary engine, respectively given black-start scheme is carried out overvoltage verification, subsidiary engine start time electric voltage frequency verification and self-excitation verification in full content carry out verification calculate, or only to therein a certain to two contents carry out verification calculate.
7. a kind of comprehensive nucleus correcting system of power system blackstart as claimed in claim 1, it is characterized in that: described verification computing module reads the data generator table, branch road table, motor table, bus table or reactor table from data management module, when overvoltage verification in the black-start scheme draw element graphics module, subsidiary engine start, electric voltage frequency verification and self-excitation verification calculate, and obtain verification conclusion.
8. a method of work for the comprehensive nucleus correcting system of power system blackstart, is characterized in that: comprise the following steps:
(1) according to given power system blackstart scheme, determine black starting-up unit, be activated unit, connection between bus, transformator, circuit and reactor, to the drafting of related elements in power system blackstart scheme, the information after drawing is preserved；
(2) determine the parameter of each element, configured with draw after power system blackstart scheme in, supplemental characteristic corresponding for each element is stored in the corresponding tables of data of data base；
(3) from tables of data, data are read, given black-start scheme is carried out overvoltage verification, subsidiary engine when starting the full content in electric voltage frequency verification and self-excitation verification carry out verification and calculate, the verification result of calculation of electric voltage frequency verification and self-excitation verification when the verification of the overvoltage of output power system black-start scheme, subsidiary engine start；
(4) if result of calculation meets three verifications simultaneously, then power system blackstart concept feasible, otherwise return step (1) corresponding element connection and parameter are adjusted, revise power system blackstart scheme, until meet three verifications simultaneously.
9. the method for work of the comprehensive nucleus correcting system of a kind of power system blackstart as claimed in claim 8, it is characterized in that: in described step (3), overvoltage in black starting-up process is verified to electric voltage frequency verification when starting with subsidiary engine, except providing verification conclusion, derive and export data accordingly, specifically including simulation time, the corresponding system frequency of time, busbar voltage and generator terminal voltage, utilize these Plotting data to go out to export the waveform of data, auxiliary determines whether；Engineering criterion check addition is then adopted for self-excitation verification.
10. the method for work of the comprehensive nucleus correcting system of a kind of power system blackstart as claimed in claim 8, it is characterized in that: in described step (3), method particularly includes: the engineering criterion check addition of self-excitation verification refers to: set electromotor external circuit only by power frequency capacitive reactance xcWith loss resistance r∑Composition, in order to the criterion making self-excitation is more accurate, will main transformer leakage reactance x that self-excitation is influentialTIt is incorporated to electromotor synchronous reactance xd, it is contemplated that the component parameters errors that may be present such as electromotor, transformator, circuit, when actually used Self-Excitation Criterion, appropriate nargin should be left, when meeting formula (1), then will not there is self-excitation phenomenon in system, and self-excitation otherwise occurs；
xc> k (xd+xT)(1)
Wherein, xcFor power frequency capacitive reactance, xdFor electromotor synchronous reactance, xTFor main transformer leakage reactance, k is nargin coefficient, tries to achieve external circuit equivalence capacitive reactance xcAfter, utilize Self-Excitation Criterion to judge, draw verification conclusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610165406.4A CN105743221A (en) | 2016-03-22 | 2016-03-22 | Black-start comprehensive verification system of power system and method of black-start comprehensive verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610165406.4A CN105743221A (en) | 2016-03-22 | 2016-03-22 | Black-start comprehensive verification system of power system and method of black-start comprehensive verification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105743221A true CN105743221A (en) | 2016-07-06 |
Family
ID=56251131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610165406.4A Pending CN105743221A (en) | 2016-03-22 | 2016-03-22 | Black-start comprehensive verification system of power system and method of black-start comprehensive verification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105743221A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109919406A (en) * | 2018-12-18 | 2019-06-21 | 国网浙江桐乡市供电有限公司 | The intelligent housekeeping arrangement method of the power distribution network method of operation |
| CN110429606A (en) * | 2019-07-26 | 2019-11-08 | 昆明理工大学 | A kind of method of power grid"black-start" transient stability verification |
| CN112467880A (en) * | 2020-11-19 | 2021-03-09 | 西安热工研究院有限公司 | Device and method for limiting maximum boost of head end of black-start sending-out line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410159A (en) * | 2014-11-24 | 2015-03-11 | 国家电网公司 | Power grid black start overall process checking method based on real-time digital simulation |
| CN105006819A (en) * | 2015-06-05 | 2015-10-28 | 国家电网公司 | Black-start scheme evaluation method |
| CN105005207A (en) * | 2015-05-29 | 2015-10-28 | 国家电网公司 | Black-start overvoltage automatic check method based on ATP-EMTP |
| CN204740447U (en) * | 2015-05-04 | 2015-11-04 | 国家电网公司 | Black start -up scheme overall process system that checks of electric wire netting based on real -time digital simulation |
-
2016
- 2016-03-22 CN CN201610165406.4A patent/CN105743221A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410159A (en) * | 2014-11-24 | 2015-03-11 | 国家电网公司 | Power grid black start overall process checking method based on real-time digital simulation |
| CN204740447U (en) * | 2015-05-04 | 2015-11-04 | 国家电网公司 | Black start -up scheme overall process system that checks of electric wire netting based on real -time digital simulation |
| CN105005207A (en) * | 2015-05-29 | 2015-10-28 | 国家电网公司 | Black-start overvoltage automatic check method based on ATP-EMTP |
| CN105006819A (en) * | 2015-06-05 | 2015-10-28 | 国家电网公司 | Black-start scheme evaluation method |
Non-Patent Citations (2)
| Title |
|---|
| 卜鹏 等: "《电力系统黑启动综合校验软件的设计与开发》", 《中国高等学校电力系统及其自动化专业第30届学术年会》 * |
| 郭嘉阳等: "《华北电网"黑启动"试验研究》", 《华北电力技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109919406A (en) * | 2018-12-18 | 2019-06-21 | 国网浙江桐乡市供电有限公司 | The intelligent housekeeping arrangement method of the power distribution network method of operation |
| CN110429606A (en) * | 2019-07-26 | 2019-11-08 | 昆明理工大学 | A kind of method of power grid"black-start" transient stability verification |
| CN112467880A (en) * | 2020-11-19 | 2021-03-09 | 西安热工研究院有限公司 | Device and method for limiting maximum boost of head end of black-start sending-out line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104504214B (en) | The generation method of electrical schematic diagram | |
| CN105743221A (en) | Black-start comprehensive verification system of power system and method of black-start comprehensive verification system | |
| CN110852023B (en) | Automatic generation method and device for primary main wiring diagram of intelligent substation | |
| JPH0785137A (en) | Generating device for cad library model | |
| CN111881662A (en) | Form generation method, device, processing equipment and storage medium | |
| TW201727560A (en) | Power grid model analysis device and method | |
| CN111509660A (en) | Protection constant value intelligent setting system based on distribution network line | |
| CN105243196A (en) | Transformer substation secondary circuit simulation modeling method | |
| Li et al. | Asymmetrical fault analysis on distribution feeders with inverter interfaced distributed generators | |
| CN103761395B (en) | Method for generating dynamic report of virtual terminal of intelligent substation | |
| Hou et al. | Development and application of an extensible engineering simulator for NPP DCS closed-loop test | |
| Liu et al. | A general initialization scheme for electromagnetic transient simulation: towards large-scale hybrid AC-DC grids | |
| CN107169175A (en) | One kind verification rational method and system of overhead transmission line topology design | |
| Kovač | Translating CIM model to bus-branch model | |
| KR100543543B1 (en) | An implementation method of training system applied the power system restorative training algorithm | |
| CN113131449B (en) | Setting method and device for protection device in distribution line | |
| CN115618777A (en) | File generation method, device, equipment and storage medium | |
| CN111124385B (en) | Automatic generation method and system of power supply design software based on database | |
| CN104200035A (en) | Electrical aided design method and system | |
| CN108563898A (en) | A kind of man-machine interactive power grid single wire digital modeling method | |
| CN109446642B (en) | Intelligent writing method and device for power grid equipment starting scheme | |
| Bauernschmitt et al. | An integral engineering process for centralised protection & control systems according to IEC 61850-6 | |
| JP5014254B2 (en) | System separation judgment method and program thereof | |
| CN110334935A (en) | A kind of method, apparatus and storage medium for assessing grid-connected exchanger transient stability | |
| CN110059394B (en) | Design method for parameter type underground power supply of coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |