CN106208096A - A kind of Substation Reactive-power Compensation grading method - Google Patents
A kind of Substation Reactive-power Compensation grading method Download PDFInfo
- Publication number
- CN106208096A CN106208096A CN201610578313.4A CN201610578313A CN106208096A CN 106208096 A CN106208096 A CN 106208096A CN 201610578313 A CN201610578313 A CN 201610578313A CN 106208096 A CN106208096 A CN 106208096A
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- Prior art keywords
- reactive
- substation
- power
- standard
- compensation
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1871—Methods for planning installation of shunt reactive power compensators
-
- 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
- Y02E40/30—Reactive power compensation
Abstract
The present invention relates to a kind of Substation Reactive-power Compensation grading method, its by calculate Substation Reactive-power Compensation than when Bb, substation operation for a long time in transformer efficiency factor Qg and power factor Hg after reactive power compensator all puts into during peak load Substation Reactive-power Compensation degree is carried out classification；Introduce by Substation Reactive-power Compensation degree abundance whether with compensate before and after power factor and design initial stage compensate ratio and be combined, system analyzes Substation Reactive-power Compensation degree comprehensively, solve the not increase-volume substantially of current transformer substation reactive power compensator or device be out of order after just change and a difficult problem for increase-volume；The present invention is applied widely, owing to standard all having strict demand to power factor when different electric pressure Substation Design initial stage reactive compensation capacities, operation, and these parameters are all readily available, therefore the present invention can carry out reactive-load compensation grading to various different electric pressure transformer stations.
Description
Technical field
The present invention relates to substation operation field, be specifically related to a kind of Substation Reactive-power Compensation grading method.
Background technology
Along with gradually forming of national areas Power System Interconnection and supertension backbone's electrical network, power system is to var and electricity
Adjusting of pressure is more and more higher with the requirement controlled.When System Reactive Power under-reserve, it is possible to collapse of voltage can be occurred to make electrical network
Disintegrate.Additionally in transformer station, transformator and outer load of standing are both needed to consume certain reactive power, and rational reactive-load compensation configures
The power factor of transformator can be improved, improve voltage level of power grid, the most just improve the level of Network Voltage Stability simultaneously.
Each department are when configuring reactive power compensator at present, the most do not combine practical situation, directly according under standard-required
Limit configuration capacitive reactive power compensation device, make transformer station's capacitive reactive power compensativity too low, idle can not in-situ balancing.Or according to meter
Calculation value configures reactive compensation capacity but the later stage still is apparent not enough along with load increases its reactive compensation capacity.Therefore, by calculating
Solve whether Substation Reactive-power Compensation degree meets on-the-spot service requirement, be the situation of current run unit urgent need grasp.
Summary of the invention
The technical problem to be solved is to provide a kind of applied widely, Substation Reactive-power Compensation that reliability is high
Grading method.
The technical solution adopted in the present invention is: a kind of Substation Reactive-power Compensation grading method, it is become by calculating
Power station reactive-load compensation than when Bb, substation operation for a long time in transformer efficiency factor Qg and reactive-load compensation dress during peak load
Put power factor Hg after all putting into and Substation Reactive-power Compensation degree carried out classification, method particularly includes:
The first order: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency
Factor Qg meets standard-required；
The second level: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformator merit
Rate factor Qg meets standard-required；
The third level: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency
Factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load meets standard and wants
Ask；
The fourth stage: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformator merit
Rate factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load meets standard and wants
Ask；
Level V: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformator merit
Rate factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load is unsatisfactory for standard
Requirement；
6th grade: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency
Factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load is unsatisfactory for standard and wants
Ask.
The positive effect of the present invention is: 1, introduce by Substation Reactive-power Compensation degree abundance whether with compensate before and after power because of
Number and design initial stage compensate ratio and are combined, and system analyzes Substation Reactive-power Compensation degree comprehensively, solves current power transformation
Stand reactive power compensator not increase-volume substantially or device be out of order after just change and a difficult problem for increase-volume；2, the scope of application of the present invention
Extensively, owing to power factor when different electric pressure Substation Design initial stage reactive compensation capacities, operation all being had strictly by standard
Requirement, and these parameters are all readily available, and therefore the present invention can carry out reactive-load compensation to various different electric pressure transformer stations
Grading；3, reliability of the present invention height, low cost, owing to can calculate in real time by common computer, reduce hardware
Input cost, decreases the participation of staff simultaneously, improves the operating error that work efficiency and minimizing personnel participate in bringing,
Improve reliability.
Detailed description of the invention
The present invention by calculate Substation Reactive-power Compensation than when Bb, substation operation for a long time in transformer efficiency factor Qg
And power factor Hg after reactive power compensator all puts into during peak load carries out classification to Substation Reactive-power Compensation degree,
Concrete stage division is:
The first order: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency
Factor Qg meets standard-required, shows that reactive compensation capacity of substation is the most sufficient.
The second level: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformator merit
Rate factor Qg meets standard-required, shows that reactive compensation capacity of substation is more sufficient.
The third level: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency
Factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load meets standard and wants
Ask, show that reactive compensation capacity of substation is sufficient.
The fourth stage: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformator merit
Rate factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load meets standard and wants
Asking, show that reactive compensation capacity of substation is general, running power factor according to current loads will not decline, but answers standby one constant volume
The reactive power compensator of amount.
Level V: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformator merit
Rate factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load is unsatisfactory for standard
Requirement, shows that reactive compensation capacity of substation is short of, and runs power factor according to current loads and can be consistently less than standard-required, should
Increase reactive power compensator immediately.
6th grade: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency
Factor Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load is unsatisfactory for standard and wants
Asking, now condition is the most severe, shows that power factor reduces and is not due to this grade of substation transformer reactive requirement too much, i.e.
Make to be further added by reactive compensation capacity power factor still will not be greatly improved, should investigate whether be because next stage transformer station without
Merit demand causes this grade of transformer station's power factor to reduce too much.
Following table is stage division form signal table:
In table, Bb represents Substation Reactive-power Compensation ratio, when Qg represents substation operation for a long time in transformer efficiency because of
Number, the power factor after reactive power compensator all puts into when Hg represents peak load.
In this application, Substation Reactive-power Compensation ratio: the transformer station of each electric pressure should require setting according to relevant criterion
Meter initial stage configuration reactive compensation capacity, or combines Electric Power Network Planning and power construction, through computational analysis, configuration appropriate scale,
The reactive power compensator of type, to meet the reactive-load compensation ratio in standard-required；Run time peak load time power factor: phase
For having strict demand without high voltage side of transformer power factor in the transformer station of electric pressure in the standard of pass, this item data can be by
Dispatching patcher obtains；Power station reactive power compensator all put into after transformer efficiency factor: this parameter can be by below equation
Calculate:
Cos φ is high-pressure side power factor, and P is full station peak value burden with power, and Q is full station peak value load or burden without work, and Qc is complete
Stand reactive compensation capacity.
Claims (1)
1. a Substation Reactive-power Compensation grading method, it is characterised in that its by calculate Substation Reactive-power Compensation than Bb,
During substation operation for a long time in transformer efficiency factor Qg and the merit after reactive power compensator all puts into during peak load
Rate factor Hg carries out classification to Substation Reactive-power Compensation degree, method particularly includes:
The first order: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency factor
Qg meets standard-required；
The second level: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformer efficiency because of
Number Qg meets standard-required；
The third level: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency factor
Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load meets standard-required；
The fourth stage: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformer efficiency because of
Number Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load meets standard-required；
Level V: Substation Reactive-power Compensation is unsatisfactory for standard-required than Bb, during substation operation for a long time in transformer efficiency because of
Number Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load is unsatisfactory for standard and wants
Ask；
6th grade: Substation Reactive-power Compensation meets standard-required than Bb, during substation operation for a long time in transformer efficiency factor
Qg is unsatisfactory for standard-required, and power factor Hg after reactive power compensator all puts into during peak load is unsatisfactory for standard-required.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578313.4A CN106208096B (en) | 2016-07-21 | 2016-07-21 | A kind of Substation Reactive-power Compensation grading method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610578313.4A CN106208096B (en) | 2016-07-21 | 2016-07-21 | A kind of Substation Reactive-power Compensation grading method |
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| CN106208096A true CN106208096A (en) | 2016-12-07 |
| CN106208096B CN106208096B (en) | 2018-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009906A (en) * | 2019-12-04 | 2020-04-14 | 国网河北省电力有限公司雄安新区供电公司 | Reactive compensation balance method of full cable net rack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143849A (en) * | 1995-08-18 | 1997-02-26 | 郭宝库 | High-low voltage capacitor complete compensator |
| CN101286641A (en) * | 2007-12-19 | 2008-10-15 | 福建省电力试验研究院 | Reactive and grouped compensation device for capacitor |
| CN102904287A (en) * | 2012-09-27 | 2013-01-30 | 中国电力科学研究院 | Coordination control method for flexible alternate current transmission system (FACTS) devices of new energy delivery system |
-
2016
- 2016-07-21 CN CN201610578313.4A patent/CN106208096B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143849A (en) * | 1995-08-18 | 1997-02-26 | 郭宝库 | High-low voltage capacitor complete compensator |
| CN101286641A (en) * | 2007-12-19 | 2008-10-15 | 福建省电力试验研究院 | Reactive and grouped compensation device for capacitor |
| CN102904287A (en) * | 2012-09-27 | 2013-01-30 | 中国电力科学研究院 | Coordination control method for flexible alternate current transmission system (FACTS) devices of new energy delivery system |
Non-Patent Citations (1)
| Title |
|---|
| 俞诗思: "论区域电压无功控制方案在地区电网中的作用", 《广东科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009906A (en) * | 2019-12-04 | 2020-04-14 | 国网河北省电力有限公司雄安新区供电公司 | Reactive compensation balance method of full cable net rack |
| CN111009906B (en) * | 2019-12-04 | 2023-12-19 | 国网河北省电力有限公司雄安新区供电公司 | Reactive compensation balancing method for full cable net rack |
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| CN106208096B (en) | 2018-09-21 |
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