CN105119267B - A kind of power grid static voltage stability horizontal analysis method - Google Patents
A kind of power grid static voltage stability horizontal analysis method Download PDFInfo
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- CN105119267B CN105119267B CN201510396169.8A CN201510396169A CN105119267B CN 105119267 B CN105119267 B CN 105119267B CN 201510396169 A CN201510396169 A CN 201510396169A CN 105119267 B CN105119267 B CN 105119267B
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Abstract
The present invention relates to a kind of power grid static voltage stability horizontal analysis method.First, forcasted years mode data are determined, stable state is formed and calculates data file, and carry out Load flow calculation；Then, the ground state data based on better astringency, form contingency set and formulate failure；Secondly, carry out static voltage stability and calculate analysis；Again, at power limit point, by model analysis, Network Voltage Stability weak node is determined；Finally, by horizontal using Measures of Reactive Compensation, lifting power grid static voltage stability at Weak Node in Power Grid.The present invention can increase the consideration to regional power grid transmission cross-section, extend the limit of consideration of static voltage stability, collapse of voltage be analyzed more thorough；Meanwhile based on powernet data, using database technology, the quick stable state that updates calculates data file, improves work efficiency.
Description
Technical field
The present invention relates to operation and control of electric power system field, particularly a kind of power grid static voltage stability horizontal analysis side
Method.
Background technology
Power system voltage stabilization assessment is the pith in electricity net safety stable calculating analysis.Voltage stabilization, which calculates, to be divided
The purpose of analysis is to verify static state, transient state and the growth process voltage stability of power grid, and the reactive-load compensation equipment for determining power grid is matched somebody with somebody
Put the safety and stability measure that scheme, reactive power/voltage control strategy, low-voltage load sheding scheme etc. ensure voltage stability.
So far, the theoretical system of Voltage-stabilizing Problems is not perfect enough, and correlative study focuses primarily upon steady stability side
Face.Common static voltage stability analysis method introduction：First, by calculating each voltage stabilization safety index（Load bus work(
Rate nargin, area power nargin and the whole network power margin, and static voltage stability reserve factor）The voltage stabilization of evaluation system
It is horizontal；Secondly, the relatively weak region of voltage stabilization is identified by model analysis or Sensitivity Analysis Method；Finally, by
Relatively weak region installation reactive power compensator or reinforced region rack construction etc. the measure lifting power grid Static Electro of voltage stabilization
Press maintenance level.Refer to Chinese invention patent（Application number 201010599850.X）.
In recent years, with phase angle measurement unit（PMU）Appearance and extensive use, utilize local metric data carry out sheet
The appraisal procedure of ground voltage maintenance level is gradually taken seriously and applies.Refer to Chinese invention patent（Application number
200910263112.5）.
Existing static voltage stability analysis method, only considers load bus/area power margin index size, did not examined
Consider transmission cross-section transmission power limit index.And in practice, transmission cross-section is connected as one's respective area power grid and external electrical network/power supply
The main thoroughfare of network, its transmission power size is to sending the Voltage Stability Level of section/receiving end power grid can there are certain influence.
In terms of information-based systems construction, to quiescent voltage application, lay particular emphasis on quasi real time power grid operating mode carries out operation monitoring to the prior art more.
Development in view of collapse of voltage is more slow, so static voltage stability more should be arranged, planned applied to power grid mode
Power grid security proficiency assessment etc..
The content of the invention
In view of this, the purpose of the present invention is to propose to a kind of power grid static voltage stability horizontal analysis method, add pair
The consideration of regional power grid transmission cross-section, extends the limit of consideration of static voltage stability.
The present invention is realized using following scheme：A kind of power grid static voltage stability horizontal analysis method, specifically includes following
Step：
Step S1：Determine forcasted years mode data；
Step S2：Form stable state and calculate data file；
Step S3：The stable state formed according to step S2 calculates data files, carries out basic tidal current analysis calculating, if calculating knot
Fruit convergence, trend is reasonably distributed and voltage is not out-of-limit, then enters step S4, otherwise return to step S1；
Step S4：Form contingency set；
Step S5：Static voltage stability analysis；
Step S6：Weak node identifies；
Step S7：Formulate measure for improvement.
Further, forcasted years mode described in the step S1 includes annual peak load mode, year minimum load mode
And each maintenance mode of power grid.Preferably, in view of general urban distribution network under peak load mode, reactive load demand compared with
Greatly, terminal voltage is relatively low；And under minimum load mode, electric network reactive-load has residue, and voltage is relatively higher.So general meeting
Emphasis considers the above two method of operation.
Further, the step S2 is specially：Using database technology, pair of power grid CIM model and BPA models is established
According to relation table, power grid E files are then based on, the data of BPA models are quickly updated, generate BPA flow data files, into
And obtain stable state and calculate data file.
Further, the contingency set described in the step S4 includes power grid normal mode and electric network fault mode, institute
Stating electric network fault mode includes the locking of direct current monopole, DC bipolar block, contact with foreign countries circuit N-1, common-tower double-return N-2, region
Circuit N-2 in interior circuit N-1, region, main transformer N-1 in region.
Further, the step S5 specifically includes following steps：
Step S51：Design calculates scene；
Step S52：Determine the result index of static voltage stability analysis；
Step S53：Index in calculation procedure S52, and judge whether each margin index is exceeded, is entered step if exceeded
S6, otherwise, return to step S1.
Particularly, content needed to be considered includes in scene：(1) the regional power grid scope clearly to be calculated, Nei He areas of area
External power grid interconnection, determines regional power grid scope；(2) setting regions power grid scope internal loading, generating set output growth pattern；
(3) voltage range standard is set.
Further, the result index of the static voltage stability analysis includes load bus power margin, region/the whole network
Power margin, static voltage stability reserve factor and section transmission power limit.
Further, the step S6 is specially：Based on the calculating of step S5 static voltage stabilities as a result, in stability limit
Model analysis is carried out at point, spread of voltage region in system is determined and loses stable characteristic feature, and then realize weak
Node identifies.
Further, the step S6 is specially：Based on the calculating of step S5 static voltage stabilities as a result, in P-V curves
Upper any point carries out model analysis, determines spread of voltage region in system and loses stable characteristic feature, and then realizes
Weak node identifies.
Further, for a power transmission scheme, if system cannot meet the requirement of voltage stability margin, need
Measure for improvement is formulated in weak node.Measure includes prevention and control in the step S7, has load load tap changer as adjusted,
Generator operation voltage adjusts, shunt capacitance reactance switching etc.；Emergent control, such as cutting load；And planning proposal, such as strengthen
Grid structure, the local set grid-connection of increase etc..
Compared with prior art, it is of the invention（1）Stable state employed in power grid real-time monitoring system is calculated into data file
Treatment technology is applied to off-line analysis calculating, based on the technology, can utilize existed system data（SCADA system, Load Forecasting
System, generation schedule system, repair schedule system）The data file of voltage stabilization calculating is quickly generated, is pacified for power grid mode
Row, the proficiency assessment of planning power grid security provide facility, eliminate artificial organized data file link, greatly improve work efficiency；
（2）In Network Voltage Stability evaluation process, except calculated load node power nargin, area power nargin, the whole network power margin
And outside static voltage stability reserve factor index, go back emphasis and consider section transmission power limit index, add to region electricity
The consideration of net transmission cross-section, extends the limit of consideration of static voltage stability.
Brief description of the drawings
Fig. 1 is the method for the present invention flow chart.
Fig. 2 is that stable state calculates data file formation schematic diagram in the embodiment of the present invention.
Embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in Figure 1, present embodiments providing a kind of power grid static voltage stability horizontal analysis method, specifically include following
Step：
Step S1：Determine forcasted years mode data；
Step S2：Form stable state and calculate data file；
Step S3：The stable state formed according to step S2 calculates data files, carries out basic tidal current analysis calculating, if calculating knot
Fruit convergence, trend is reasonably distributed and voltage is not out-of-limit, then enters step S4, otherwise return to step S1；
Step S4：Form contingency set；
Step S5：Static voltage stability analysis；
Step S6：Weak node identifies；
Step S7：Formulate measure for improvement.
In the present embodiment, forcasted years mode described in the step S1 includes annual peak load mode, year minimum load
Mode and each maintenance mode of power grid.Preferably, in view of general urban distribution network under peak load mode, reactive load demand
Measure larger, terminal voltage is relatively low；And under minimum load mode, electric network reactive-load has residue, and voltage is relatively higher.So one
As can emphasis consider the above two method of operation.
In the present embodiment, the step S2 is specially：Using database technology, power grid CIM model and BPA models are established
Contrast relationship table, be then based on power grid E files, the data of BPA models quickly updated, generation BPA flow datas text
Part, and then obtain stable state and calculate data file.
In the present embodiment, the contingency set described in the step S4 includes power grid normal mode and electric network fault side
Formula, the electric network fault mode include the locking of direct current monopole, DC bipolar block, contact with foreign countries circuit N-1, common-tower double-return N-2,
Circuit N-1 in region, circuit N-2 in region, main transformer N-1 in region.
In the present embodiment, the step S5 specifically includes following steps：
Step S51：Design calculates scene；
Step S52：Determine the result index of static voltage stability analysis；
Step S53：Index in calculation procedure S52, and judge whether each margin index is exceeded, is entered step if exceeded
S6, otherwise, return to step S1.
Particularly, in the present embodiment, content needed to be considered includes in scene：(1) regional power grid clearly to be calculated
Scope, Nei He areas of area external power grid interconnection, determine regional power grid scope；(2) setting regions power grid scope internal loading, generating set
Output growth pattern；(3) voltage range standard is set.
In the present embodiment, the result index of the static voltage stability analysis include load bus power margin, region/
The whole network power margin, static voltage stability reserve factor and section transmission power limit.
In the present embodiment, the step S6 is specially：Based on the calculating of step S5 static voltage stabilities as a result, in stabilization
Model analysis is carried out at limit point, spread of voltage region in system is determined and loses stable characteristic feature, and then realize
Weak node identifies.
In the present embodiment, the step S6 is specially：Based on the calculating of step S5 static voltage stabilities as a result, in P-V
Any point carries out model analysis on curve, determines spread of voltage region in system and loses stable characteristic feature, and then
Realize that weak node identifies.
In the present embodiment, for a power transmission scheme, if system cannot meet the requirement of voltage stability margin,
Then need to formulate measure for improvement in weak node.Measure includes prevention and control in the step S7, and transformer point is carried as adjusted to have
Connector, the adjustment of generator operation voltage, shunt capacitance reactance switching etc.；Emergent control, such as cutting load；And planning proposal,
Such as strengthen grid structure, the local set grid-connection of increase.
Particularly, this implementation additionally provides implementation process in detail below：
As shown in Fig. 2, the typical day E file of power grid, CIM model during exporting history from SCADA system, for typical day power grid
Static electric voltage stability analysis uses；To analyze the power grid of planning period, then except power grid allusion quotation during above-mentioned history
Outside type day data file, it is also necessary to right during derivation programming from Load Forecasting system, generation schedule system, repair schedule system
The result data files answered.
Establish the offline database towards BPA data models, and BPA model foundation corresponding tables, include in table：Subregion, AC
BUS, AC LINE, LINE HG, TRAN, DC BUS, DC LINE, string are mended, etc.；Part correspondence is listed below.
| BPA data names | Database field is named |
| B* | AC Bus_Card Key |
| OWNER | AC Bus_Owner |
| Name | AC Bus_Name |
| KV | AC Bus_KV |
| ZONE | AC Bus_Zone |
| LOAD P(MW) | AC Bus_Load P |
| LOAD Q(MVar) | AC Bus_Load Q |
| PMAX(MW) | AC Bus_Pmax |
| PGEN(MW) | AC Bus_PGen |
Using offline database, steady state data file under the various modes of power grid is generated, then carries out Load flow calculation.
In steady state data file basis, the failure being likely to occur is set, is then filtered out more serious
Failure subsequently calculated.Screen principle：The failure of all users setting is analyzed, finds out those voltage stability margins
Minimum failure.The voltage stability margin of each failure refers to the power transmitting level P of initial launch point before failure0After failure
The power transmitting level P of operating point existing for last flow solutionnBetween difference（Pn- P0）.
Quiet steady analysis mainly has two kinds of application modes：Increase load in interregional One-dimensional power transmission, region and increase output pins
To regional power grid, the growth pattern of load, generator output is separately designed, then to normal mode, failure mode（Failure classes
Type derives from the result of Contingency screening）Lower power grid carries out static voltage stability calculating.
By taking the power grid of somewhere as an example, result of calculation is as follows.
（1）Load bus reactive power nargin size is as shown in the table.
| Sequence number | Power transformation station name | 110kV sides（Mvar） |
| 1 | A substations | -309 |
| 2 | B substations | -214 |
| 3 | C substations | -144 |
| 4 | D substations | -226 |
| 5 | E substations | -284 |
（2）Region/the whole network power margin, static voltage stability reserve factor index are as shown in the table.
| Before failure | A station owners become N-1 | A station owners become N-2 | |
| Initial voltage | 0.98 | 0.9457 | 0.9747 |
| Limiting voltage | 0.61 | 0.6295 | 0.8291 |
| Reserve factor | 38% | 33% | / |
| Normal duty | 1152 | 1152 | 1152 |
| Power limit | 2075 | 1635 | 399 |
| Power margin | 80% | 42% | -65% |
（3）Section transmission power limit is as shown in the table.
| Before failure | A sections N-1 | A sections N-2 | |
| Initial voltage | 0.99 | 0.98 | 0.96 |
| Recover power | 4061 | 4058 | 4056 |
| Limiting voltage | 0.91 | 0.89 | 0.90 |
| Power limit | 6314 | 6092 | 5323 |
| Nargin coefficient | 55% | 50% | 31% |
To region/the whole network, section, respectively at its power limit point, model analysis is carried out, according to the big of the participation factor
It is small, determine power grid static voltage stability weak spot.Result of calculation is as shown in the table, and it is bigger that weak spot generally chooses the participation factor
Node.
| Sequence number | Nodename | Participate in the factor |
| 1 | A substations 10kV busbares | 1.000 |
| 2 | A substations 110kV busbares | 0.966 |
| 3 | B substations 10kV busbares | 0.737 |
| 4 | B substations 110kV busbares | 0.727 |
| 5 | C substations 10kV busbares | 0.560 |
The power grid of standard requirement is unsatisfactory for margin index, by formulating measure for improvement, until margin index is met the requirements.
Such as to by electric energy power, generally being tapped by regulator generator and SVC voltages control, the input of capacitor and reactor, ULTC
Head adjusting, cutting load etc.；Section ability to transmit electricity, generally by increasing transmission line construction etc..
Particularly, implementation process falls into a trap point counting analysis using Chinese DianKeYuan BPA softwares.
In conclusion the present invention first with database technology, establishes the contrast relationship of power grid CIM model and BPA models
Table, is then based on power grid E files, BPA model datas is quickly updated, and generates BPA flow data files, obtains stable state meter
Calculate data file.This method, can utilize existed system data（SCADA system, Load Forecasting system, generation schedule system, inspection
Repair planning system）The data file of voltage stabilization calculating is quickly generated, arranges for power grid mode, plan that power grid security level is commented
Offer facility is provided, eliminates artificial organized data file link, greatly improves work efficiency.Secondly, the core of collapse of voltage problem
The heart is caused by system can not meet reactive requirement, its influence factor may be too to use parallel capacitive compensation, but also have
Probably due to transmission cross-section transimission power causes more than delivery limits.The present invention proposes, on the basis of existing method, increases to defeated
The consideration of electric section transmission power limit, except in addition to by electric energy power of power grid power supply area of consideration, while considers grid power transmission and leads to
The ability to transmit electricity in road, analyzes collapse of voltage more thorough.Finally, in terms of application effect, the present invention is more bonded collapse of voltage machine
Reason, assessment result are closer actual；In terms of source data processing, existing automated system is made full use of, quickly generates various sides
Steady state data file under formula, eliminates artificial organized data file link, improves work efficiency.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (1)
- A kind of 1. power grid static voltage stability horizontal analysis method, it is characterised in that comprise the following steps：Step S1：Determine forcasted years mode data；Step S2：Form stable state and calculate data file；Step S3：The stable state formed according to step S2 calculates data files, carries out basic tidal current analysis calculating, if result of calculation is received Hold back, trend is reasonably distributed and voltage is not out-of-limit, then enter step S4, otherwise return to step S1；Step S4：Form contingency set；Step S5：Static voltage stability analysis；Step S6：Weak node identifies；Step S7：Formulate measure for improvement；Wherein, the step S5 specifically includes following steps：Step S51：Design calculates scene；Step S52：Determine the result index of static voltage stability analysis；Step S53：Index in calculation procedure S52, and judge whether each margin index is exceeded, and S6 is entered step if exceeded, Otherwise, return to step S1；Wherein, it is abundant to include load bus power margin, region/the whole network power for the result index of the static voltage stability analysis Degree, static voltage stability reserve factor and section transmission power limit；Wherein, the step S6 is specially：Based on step S5 static voltage stabilities calculate as a result, at stability limit point carry out Model analysis, determines spread of voltage region in system and loses stable characteristic feature, so realize weak node identification 'Wherein, forcasted years mode described in the step S1 includes annual peak load mode, year minimum load mode and power grid Each maintenance mode；Wherein, the step S2 is specially：Using database technology, the contrast relationship of power grid CIM model and BPA models is established Table, is then based on power grid E files, and the data of BPA models are quickly updated, and generates BPA flow data files, and then obtain Stable state calculates data file；Wherein, the contingency set described in the step S4 includes power grid normal mode and electric network fault mode, the power grid event Barrier mode includes the locking of direct current monopole, DC bipolar block, contact with foreign countries circuit N-1, common-tower double-return N-2, circuit N- in region 1st, circuit N-2 in region, main transformer N-1 in region；Wherein, the step S6 is specially：Based on step S5 static voltage stabilities calculate as a result, on P-V curves any point Model analysis is carried out, spread of voltage region in system is determined and loses stable characteristic feature, and then realize weak node Identification；Wherein, measure includes prevention and control, emergent control and planning proposal in the step S7.
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| CN105490281B (en) * | 2015-12-04 | 2018-01-09 | 国网内蒙古东部电力有限公司电力科学研究院 | Layering and zoning reactive voltage analysis method based on boundary condition |
| CN105913148A (en) * | 2016-04-11 | 2016-08-31 | 国家电网公司 | On-line platform-based power grid accident pre-arranged plan automatic realization method |
| CN107069747B (en) * | 2017-03-27 | 2019-07-26 | 国网浙江省电力公司电力科学研究院 | A kind of minimum start-up mode based on regional voltage stabilization determines method |
| CN106972494A (en) * | 2017-05-18 | 2017-07-21 | 广西大学 | A kind of AC-DC hybrid power grid sends section conveying power optimization method outside |
| CN109167357A (en) * | 2018-10-18 | 2019-01-08 | 国网山东省电力公司泰安供电公司 | A method of the optimization power grid static security analysis time |
| CN110955959A (en) * | 2019-11-11 | 2020-04-03 | 中国南方电网有限责任公司 | Method and device for rapidly generating and calculating faults of power system in batches |
| CN111509699B (en) * | 2020-04-02 | 2023-03-28 | 贵州电网有限责任公司 | Voltage out-of-limit control decision method considering reactor consolidation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734151A (en) * | 2015-03-31 | 2015-06-24 | 河南行知专利服务有限公司 | Electric system static security assessment method |
Family Cites Families (1)
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2015
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734151A (en) * | 2015-03-31 | 2015-06-24 | 河南行知专利服务有限公司 | Electric system static security assessment method |
Non-Patent Citations (3)
| Title |
|---|
| 基于CIM的电力系统安全分析可视化系统;王腾飞;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20120815(第8期);C042-134 * |
| 大型互联电网在线预决策系统中的若干问题的研究;许剑冰;《中国博士学位论文全文数据库 工程科技II辑》;20060815(第8期);C042-39 * |
| 电力系统规划与静态安全评估软件设计与实现;张节潭等;《电网技术》;20080905;第32卷(第17期);第52-57页 * |
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