CN105071404A - AVC strategy optimization method - Google Patents
AVC strategy optimization method Download PDFInfo
- Publication number
- CN105071404A CN105071404A CN201510501296.XA CN201510501296A CN105071404A CN 105071404 A CN105071404 A CN 105071404A CN 201510501296 A CN201510501296 A CN 201510501296A CN 105071404 A CN105071404 A CN 105071404A
- Authority
- CN
- China
- Prior art keywords
- transformer station
- voltage level
- level transformer
- avc
- highest voltage
- 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
-
- 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
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to an AVC strategy optimization method, comprising steps of arranging a gateway on a next voltage level transformer station of a highest level voltage transformer station in a region, arranging a critical condition of putting into acapacitor at the highest voltage level transformer station, wherein the critical condition enables the reactive sum of the next level transformer station not to inversely feed the reactive power to the highest voltage level transformer station. Through changing the arrangement of the gateway, instead of traditionally arranging the gateway on the highest level transformer station, the inventions arranges the gateway on the next level transformer station of the highest voltage level transformer station, and thus improves the power factors of the next level transformer station, effectively reduces the wire loss and has great economic benefits and social benefits.
Description
Technical field
The invention belongs to power transformation operation field, relate to AVC strategy, especially a kind of AVC policy optimization method.
Background technology
Along with SCADA system be becoming better and approaching perfection day by day, ripe, remote signalling, the improving constantly of telemetry accuracy, remote control more reliable, and state estimation module is to the realization of power grid measurement in-service monitoring, the on-Line Voltage idle work optimization supervisory control system (AVC) based on SCADA system is achieved.
But the operation of AVC system at present, AVC strategy and execution are considered the idle situation of highest voltage level transformer station completely, and substantially do not consider the regulated station of its subordinate is idle, cause the power factor of regulated station very low, the economical operation for transformer also affects.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of AVC policy optimization method improving power transformation operation benefit is provided.
The technical scheme that technical solution problem of the present invention adopts is:
A kind of AVC policy optimization method, is arranged on the next stage transformer station of highest voltage level transformer station in region by critical point.
And arrange capacitor input in highest voltage level transformer station and face a condition, this condition makes its idle sums of transformer station of subordinate all not send idle to highest voltage level transformer station.
Advantage of the present invention and good effect are:
This method is arranged by changing critical point, critical point is arranged on highest voltage level transformer station by tradition and changes the next stage transformer station being arranged on highest voltage level transformer station into, thus improve the power factor of transformer station of subordinate, there is larger economic benefit and social benefit.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of AVC policy optimization method, critical point is arranged on the next stage transformer station of highest voltage level transformer station in region, in order to prevent idlely sending to highest voltage level transformer station, capacitor input is set in highest voltage level transformer station and faces a condition, this condition makes its idle sums of transformer station of subordinate all not send idle to highest voltage level transformer station, thus ensure that highest voltage level transformer station power factor remains on good state.
Below for highest voltage level transformer station (220kV transformer station) transformer medium voltage side critical point,
Suppose that this critical point is with 110kV circuit to have n to return, circuit is meritorious, idle is respectively P
1, Q
1; P
2, Q
2; ...; P
n, Q
n.And Q
1=a
1p
1, Q
2=a
2p
2..., Q
n=a
np
n.
Then: when AVC critical point is arranged on 220kV main transformer medium voltage side, power factor:
When critical point being arranged on its next stage transformer station (110kV transformer station) electric power incoming line, n critical point can be developed in former 220kV main transformer medium voltage side critical point, and power factor is respectively
Can see, at P from above-mentioned expression formula
1, P
1..., P
nunder constant condition, when the power line of each regulated station idle enough hour, i.e. a
1, a
2..., a
nwhen → 0,
Then each controlled transformer station's electric power incoming line critical point power factor
220kV main transformer medium voltage side AVC critical point power factor simultaneously
That is: next stage transformer station (110kV transformer station) AVC critical point power factor level off to 1 time, its higher level transformer station (220kV transformer station) corresponding AVC critical point power factor also can level off to 1.
Therefore, can know by inference, if next stage transformer station (110kV transformer station) critical point interest rate remains on good state, so the critical point interest rate of its higher level transformer station (220kV transformer station) can remain on better state.If but critical point is arranged on 220kV transformer station, just may occur that 220kV transformer station critical point interest rate is qualified, but undesirable situation is moved back in the idle throwing of 110kV transformer station.
As Q ≈ 0, power factor reaches maximum, and what get in the denominator due to Q is 2 times squares, so cannot embody idle was mend or owe to mend.When the critical point of AVC is all arranged on highest voltage level transformer station (220kV transformer station), the idle input of its next stage transformer station (110kV, 35kV transformer station) can be made very undesirable.And critical point is arranged on the next stage transformer station (110kV transformer station) of highest voltage level transformer station in region, overallly can ensure that all controlled transformer stations all have good power factor, thus realize larger economic benefit and social benefit.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and under the prerequisite not departing from inventive concept, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. an AVC policy optimization method, is characterized in that: next electric pressure transformer station critical point being arranged on highest voltage level transformer station in region.
2. AVC policy optimization method according to claim 1, it is characterized in that: highest voltage level transformer station arrange capacitor drop into face a condition, this condition be make its with the idle sum of transformer station of subordinate do not send idle to this highest voltage level transformer station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501296.XA CN105071404A (en) | 2015-08-14 | 2015-08-14 | AVC strategy optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501296.XA CN105071404A (en) | 2015-08-14 | 2015-08-14 | AVC strategy optimization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105071404A true CN105071404A (en) | 2015-11-18 |
Family
ID=54500717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501296.XA Pending CN105071404A (en) | 2015-08-14 | 2015-08-14 | AVC strategy optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105071404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720584A (en) * | 2016-04-13 | 2016-06-29 | 国电南瑞科技股份有限公司 | Integer programming based reactive power instruction optimal allocation method for province dispatcher during automatic volume control (AVC) province and local coordinated control process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635458A (en) * | 2009-08-21 | 2010-01-27 | 清华大学 | Coordinating voltage control method of provincial power network and regional power network based on two-way coordination constraint |
| CN103401235A (en) * | 2013-07-29 | 2013-11-20 | 中国南方电网有限责任公司 | Topology search-based provincial power grid coordination voltage control generalized gateway automatic generation method |
-
2015
- 2015-08-14 CN CN201510501296.XA patent/CN105071404A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635458A (en) * | 2009-08-21 | 2010-01-27 | 清华大学 | Coordinating voltage control method of provincial power network and regional power network based on two-way coordination constraint |
| CN103401235A (en) * | 2013-07-29 | 2013-11-20 | 中国南方电网有限责任公司 | Topology search-based provincial power grid coordination voltage control generalized gateway automatic generation method |
Non-Patent Citations (2)
| Title |
|---|
| 施有安: "城市电网自动电压无功控制系统（AVC）建设相关问题的讨论", 《中国优秀硕士学位论文全文数据库（工程科技II辑）》 * |
| 杨晓雷等: "省地县三级AVC系统协调控制及实现", 《电网与清洁能源》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720584A (en) * | 2016-04-13 | 2016-06-29 | 国电南瑞科技股份有限公司 | Integer programming based reactive power instruction optimal allocation method for province dispatcher during automatic volume control (AVC) province and local coordinated control process |
| CN105720584B (en) * | 2016-04-13 | 2018-06-29 | 国电南瑞科技股份有限公司 | A kind of AVC saves ground and coordinates the optimum allocation method that the province based on integer programming during controlling adjusts reactive command |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203690938U (en) | Low-voltage reactive-power automatic compensation device | |
| CN105553807A (en) | 10kV low voltage smart power distribution network system with looped network communication structure | |
| CN103762606B (en) | Staged power distribution network low-voltage intelligent capacitor control method | |
| CN105071404A (en) | AVC strategy optimization method | |
| CN203455692U (en) | Cogeneration monitoring device based on cloud server for thermal power plant | |
| CN110570036A (en) | medium-voltage distribution network line comprehensive evaluation method and system | |
| CN206259493U (en) | A kind of antenna for base station | |
| CN104242457A (en) | Intelligent power-saving comprehensive control set | |
| CN205195289U (en) | Distributing type reactive compensation control system | |
| CN204086961U (en) | The long-range Optimized Operation supervisory system in a kind of power station | |
| CN203951245U (en) | A kind of automatic series and parallel device that is applicable to accumulator of electric car charging | |
| CN205792580U (en) | A kind of load impedance self-checking device of carrier communication equipment | |
| CN204230913U (en) | A kind of SVG device of individual-phase control | |
| CN204990679U (en) | Can realize that station N of factory receives one information collection system | |
| CN204315075U (en) | A kind of electric power dynamic similation screen controller based on ethernet network | |
| CN203800929U (en) | All-electric carrier communication remote integrated meter reading system | |
| CN204633458U (en) | A kind of low pressure backup auto-activating device | |
| CN204316187U (en) | The energy-conservation Comprehensive Control the complete sets of equipment of intelligent electric power | |
| CN203942295U (en) | A kind of power distribution network wind power plant and the photovoltaic power generation equipment conditioning unit of exerting oneself | |
| CN203218886U (en) | 10kV rural power network SVG reactive power compensation control device | |
| CN203205723U (en) | Low-voltage electrical cabinet | |
| CN205123413U (en) | APF parallel machine communication system based on power line carrier transmission | |
| CN202535085U (en) | Intelligent reactive power compensation system by utilizing power line carrier communication mode | |
| CN204794078U (en) | Electric wire netting economize on electricity lightning protection engineering system | |
| CN206712776U (en) | 110kV substation information radio transmitting devices |
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 |
Application publication date: 20151118 |
|
| RJ01 | Rejection of invention patent application after publication |