CN201549896U - Substation reactive power control system - Google Patents

Substation reactive power control system Download PDF

Info

Publication number
CN201549896U
CN201549896U CN2009200349093U CN200920034909U CN201549896U CN 201549896 U CN201549896 U CN 201549896U CN 2009200349093 U CN2009200349093 U CN 2009200349093U CN 200920034909 U CN200920034909 U CN 200920034909U CN 201549896 U CN201549896 U CN 201549896U
Authority
CN
China
Prior art keywords
section
transformer
main transformer
voltage
reactive power
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.)
Expired - Lifetime
Application number
CN2009200349093U
Other languages
Chinese (zh)
Inventor
杨光伟
程贤芳
郑恩宏
张立峰
肖彦杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAOJI POWER SUPPLY Co OF STATE GRID SHAANXI ELECTRIC POWER Co
State Grid Corp of China SGCC
Original Assignee
Baoji Power Supply Bureau
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoji Power Supply Bureau filed Critical Baoji Power Supply Bureau
Priority to CN2009200349093U priority Critical patent/CN201549896U/en
Application granted granted Critical
Publication of CN201549896U publication Critical patent/CN201549896U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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 utility model discloses a substation reactive power control system, which comprises a microprocessor control cubicle, a section I voltage regulation main transformer, a section II voltage regulation main transformer, a number one reactive power regulation transformer and a number two reactive power regulation transformer, wherein the section I voltage regulation main transformer is arranged between section I high voltage and section I low voltage, and the section II voltage regulation main transformer is arranged between section II high voltage and section II low voltage; a number one capacitor switch cubicle is arranged between the number one reactive power regulation transformer and the section I low voltage, and a number two capacitor switch cubicle is arranged between the number two reactive power regulation transformer and the section II low voltage; and the microprocessor control cubicle is simultaneously connected with the section I voltage regulation main transformer, the section II voltage regulation main transformer, the number one reactive power regulation transformer, the number two reactive power regulation transformer, the number one capacitor switch cubicle and the number two capacitor switch cubicle. The utility model has the advantages that the safety of the capacitor is ensured, the service life of the capacitor is greatly prolonged and the switching oscillation is stopped. Moreover, since the capacity is variable and adjustable, the optimum reactive power compensation can be realized more easily.

Description

A kind of transformer station powerless control system
Technical field:
The utility model belongs to electric power control field, relates to the idle control device of a kind of transformer station, especially a kind of transformer station's powerless control system based on the VQK-110TA microcomputer control cabinet.
Background technology:
Develop rapidly along with China's industrial and agricultural production, fast growth of national economy, the town and country power load constantly increases, the electric load breach is serious day by day, in this case, improve power supply quality, reduce unnecessary current supply loss, seem particularly important, the power system voltage reactive management is the important means that guarantees the operation of electric power system electrical network reliable and economic.The voltage power-less management of strengthening electric power system can systems stabilisation mains supply voltage, improves power factor, reduces line loss, improves the power supply unit utilance.Department of State Grid manages voltage power-less and pays much attention at present.The VQK-110 series voltage reactive comprehensive controller by microcomputer of my the former development of company can satisfy the requirement of this respect, and has obtained using widely, but also exists blemish in an otherwise perfect thing.Its weak point is: 1, capacitor switching still adopts traditional switch cubicle switching to finish, and the idle amount of electric capacity is bigger again, overvoltage occurs, shove and electrical network is impacted in the inevitable capacitor switching process; 2, the capacitance arrangement number is limited, and idle amount combination is limited, is difficult to reach The optimal compensation.In order to overcome above-mentioned weak point, on the basis of former VQK-110 series, we have introduced new capacitance compensation mode theory, develop and developed VQK-110TA series microcomputer voltage reactive comprehensive automatic control equipment.
The utility model content:
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of transformer station powerless control system is provided, comprise that microcomputer control cabinet, I section pressure regulation main transformer, II section pressure regulation main transformer, No. 1 idle adjusting become, No. 2 idle adjustings become, described I section pressure regulation main transformer is arranged between I section high pressure and the I section low pressure, and described II section pressure regulation main transformer is arranged between II section high pressure and the II section low pressure; Be provided with the capacitance switch cabinet No. 1 between described No. 1 idle adjusting change and the I section low pressure, be provided with the capacitance switch cabinet No. 2 between described No. 2 idle adjustings changes and the II section low pressure; Described microcomputer control cabinet becomes with I section pressure regulation main transformer, II section pressure regulation main transformer, No. 1 idle adjusting simultaneously, No. 2 idle adjustings become, and No. 1 the capacitance switch cabinet is connected with No. 2 capacitance switch cabinets.
Be connected with PT between described microcomputer control cabinet and I section high pressure, I section low pressure, II section high pressure and the II section low pressure.Described microcomputer control cabinet is the VQK-110TA microcomputer control cabinet.
Advantage of the present utility model is: on the basis that has kept former pressure regulation scheme, improved the mode of adjusting idle amount emphatically, introduced the capacity transfer voltage regulator.The capacitor group is fixing to be inserted, and regulates idle output by changing capacitor group terminal voltage, satisfies the idle processing requirements of system.Improve and improve control nine territory figure and capacitor switching rule.Original 1 reactive power compensation electric capacity is realized the building-out capacitor of 9 idle amounts of difference by the mode that changes the electric capacity both end voltage, and it is just easier to choose best reactive power compensation amount.Effectively reduce of the impact of building-out capacitor inrush phenomenon to system and capacitor, and the building-out capacitor overwhelming majority times use at low-pressure state, so the fail safe that building-out capacitor uses, reliability improves greatly, prolong its useful life greatly.Electric capacity relies on voltage regulator to realize the change of building-out capacitor in case drop into the back, and therefore no overvoltage, no charge and discharge phenomena do not have the time-delay of adjusting, can realize timely adjustment.
Description of drawings:
Fig. 1 is a transformer station of the present utility model powerless control system structural representation;
Embodiment:
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1, a kind of transformer station powerless control system, comprise that microcomputer control cabinet, I section pressure regulation main transformer, II section pressure regulation main transformer, No. 1 idle adjusting become, No. 2 idle adjustings become, described I section pressure regulation main transformer is arranged between I section high pressure and the I section low pressure, and described II section pressure regulation main transformer is arranged between II section high pressure and the II section low pressure; Be provided with the capacitance switch cabinet No. 1 between described No. 1 idle adjusting change and the I section low pressure, be provided with the capacitance switch cabinet No. 2 between described No. 2 idle adjustings changes and the II section low pressure; Described microcomputer control cabinet becomes with I section pressure regulation main transformer, II section pressure regulation main transformer, No. 1 idle adjusting simultaneously, No. 2 idle adjustings become, and No. 1 the capacitance switch cabinet is connected with No. 2 capacitance switch cabinets.
Be connected with PT between described microcomputer control cabinet and I section high pressure, I section low pressure, II section high pressure and the II section low pressure.Described microcomputer control cabinet is the VQK-110TA microcomputer control cabinet.
VQK-110TA series voltage reactive comprehensive controller by microcomputer basic principle: the voltage of gathering on high-tension side voltage, the magnitude of current and low-pressure side on the electrical network, calculate its idle amount and power factor, and analyze in view of the above, judge, give an order according to the nine territory control charts and the capacitor switching rule (in the key technology main points, describing in detail) that configure, the pressure regulation of control main transformer, capacitor switching and idle amount are regulated, to guarantee the bus output voltage stabilization and to reach best reactive power compensation.
Reactive management system of whole transformer station by 1. VQK-110TA microcomputer control cabinet, 2. the on-load voltage regulation main transformer, 3. the capacitor switching switch cubicle, 4. the capacity transfer voltage regulator, 5. compensation capacitors is formed.Wherein VQK-110TA microcomputer control cabinet and capacity transfer voltage regulator have been formed VQK-110TA series voltage reactive comprehensive controller by microcomputer.
On the basis of the every function that keeps former VQK-110 system, the capacity transfer function according to increasing has adopted the kinds of protect measure to guarantee that equipment normally moves.
Figure G2009200349093D00021
Because electric capacity fault and after excising capacitance switch, controller are regulated capacitance-adjustable transformer gear to a grade automatically;
Figure G2009200349093D00031
Capacity transfer excess temperature, this body weight gas occur, when tap changer weighs gas, reports to the police and the locking switching with voltage regulator; Also can set for and stop the fault capacitance operation automatically;
Figure G2009200349093D00032
Exclusive hardware protection circuit, any fault of the inner appearance of microcomputer does not all have misoperation output;
Figure G2009200349093D00033
Have the dynamic self-checking function, the microcomputer internal parameter control is made mistakes and non-seriousness fault all can be reported to the police and locking;
When the control program confusion appearred in microcomputer, internal program recovered normal automatically in one second, can wrongly not export during this period;
Figure G2009200349093D00035
Can resist serious Harmonic Interference, the voltage erroneous judgement can not occur controlling and cause misoperation;
Any one section bus has a power failure, and excises the capacitor of this section automatically, after restoring electricity, recovers control automatically;
Figure G2009200349093D00037
When the paired running pressure regulation, if two different shelves of main transformer after the pressure regulation occur, microcomputer will return to main transformer the gear before the pressure regulation automatically and report to the police;
Figure G2009200349093D00038
When the unusual or paired running gear of main transformer gear signal line occurring not simultaneously, report to the police and locking.
Figure G2009200349093D00039
When main transformer relaying protection would trip, report to the police and locking;
Figure G2009200349093D000310
When line voltage occurring when too high or too low, to report to the police and locking, fault can be recovered after disappearing automatically;
Figure G2009200349093D000311
When the main transformer overload, the locking pressure regulation, load just often can recover Regulation Control automatically;
Figure G2009200349093D000312
During the capacitor fault trip, report to the police and the locking switching; Also can set for and stop the fault capacitance operation automatically;
Figure G2009200349093D000313
Each main transformer occurs refusing to boost and when refusing step-down, reports to the police and locking;
Figure G2009200349093D000314
When each capacitor is refused to throw or refused to cut, report to the police and locking; Also can set for and stop the fault capacitance operation automatically;
Figure G2009200349093D000315
When occurring that overvoltage appears in line voltage and when under-voltage, excise capacitor automatically and report to the police, locking control, fault can be resumed work after disappearing automatically; In 5 minutes, when same controlling object is sent contrary instructions, stop control.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.

Claims (3)

1. transformer station's powerless control system, comprise that microcomputer control cabinet, I section pressure regulation main transformer, II section pressure regulation main transformer, No. 1 idle adjusting become, No. 2 idle adjustings become, it is characterized in that: described I section pressure regulation main transformer is arranged between I section high pressure and the I section low pressure, and described II section pressure regulation main transformer is arranged between II section high pressure and the II section low pressure; Be provided with the capacitance switch cabinet No. 1 between described No. 1 idle adjusting change and the I section low pressure, be provided with the capacitance switch cabinet No. 2 between described No. 2 idle adjustings changes and the II section low pressure; Described microcomputer control cabinet becomes with I section pressure regulation main transformer, II section pressure regulation main transformer, No. 1 idle adjusting simultaneously, No. 2 idle adjustings become, and No. 1 the capacitance switch cabinet is connected with No. 2 capacitance switch cabinets.
2. a kind of according to claim 1 transformer station powerless control system is characterized in that: be connected with PT between described microcomputer control cabinet and I section high pressure, I section low pressure, II section high pressure and the II section low pressure.
3. a kind of according to claim 1 transformer station powerless control system is characterized in that: described microcomputer control cabinet is the VQK-110TA microcomputer control cabinet.
CN2009200349093U 2009-10-10 2009-10-10 Substation reactive power control system Expired - Lifetime CN201549896U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200349093U CN201549896U (en) 2009-10-10 2009-10-10 Substation reactive power control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200349093U CN201549896U (en) 2009-10-10 2009-10-10 Substation reactive power control system

Publications (1)

Publication Number Publication Date
CN201549896U true CN201549896U (en) 2010-08-11

Family

ID=42605077

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200349093U Expired - Lifetime CN201549896U (en) 2009-10-10 2009-10-10 Substation reactive power control system

Country Status (1)

Country Link
CN (1) CN201549896U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113937889A (en) * 2021-10-15 2022-01-14 国网河北省电力有限公司魏县供电分公司 Transformer voltage regulation gear balance early warning method, early warning device and early warning equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113937889A (en) * 2021-10-15 2022-01-14 国网河北省电力有限公司魏县供电分公司 Transformer voltage regulation gear balance early warning method, early warning device and early warning equipment

Similar Documents

Publication Publication Date Title
CN104201693A (en) Power distribution line reactive power optimization control method based on dynamic adjustment of power factor interval
CN103441511A (en) Intelligent low-voltage dynamic-compensation energy-saving filtering device
CN105576834A (en) Intelligent low-voltage power distribution system
CN206850446U (en) A kind of intelligent load-balancing regulator
CN203014389U (en) High-voltage reactive power automatic compensation device
CN206922435U (en) A kind of novel intelligent reactive compensation apparatus
CN201518419U (en) High-voltage, medium-voltage and low-voltage comprehensive compensation control system for arc furnace
CN201541131U (en) Intelligent powerless compensation device of high-voltage line
CN102843052A (en) Rectification module of intelligent high frequency switch power supply
CN102946108A (en) Voltage automatic compensation device
CN201549896U (en) Substation reactive power control system
CN205407409U (en) Novel intelligence low voltage distribution system
CN209183952U (en) Low-voltage capacitance compensating device and sectionalized single busbar connection system
CN203491701U (en) Harmonic-resistant intelligent integrated power capacitor
CN202602298U (en) Voltage-regulating capacitance-regulating type reactive compensation complete device of high voltage line
CN203301157U (en) Low-voltage reactive compensation power distribution cabinet
CN203377601U (en) Standby transformer reactive power compensator capable of adjusting power factor
CN204118746U (en) A kind of low pressure and low power compensation arrangement
CN202856370U (en) Three-unit cylinder type intelligent capacitor
CN202059180U (en) Low-voltage reactive power compensation drawer module
CN202798000U (en) Static var generator (SVG) high voltage static reactive power compensation system
CN204835233U (en) Comprehensive block terminal of area compensation
CN209119804U (en) Electric furnace overvoltage energy absorption protective device
CN206775140U (en) Construction distribution header tank reactive power compensator
CN202206141U (en) Submerged arc furnace secondary low pressure fixing and dynamic energy-saving compensation device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Free format text: FORMER OWNER: BAOJI POWER SUPPLY BUREAU

Effective date: 20140327

Owner name: BAOJI POWER SUPPLY COMPANY OF STATE GRID SHAANXI E

Effective date: 20140327

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 721004 BAOJI, SHAANXI PROVINCE TO: 100031 XICHENG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20140327

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: Baoji Power Supply Company of State Grid Shaanxi Electric Power Company

Address before: 721004 No. 125, Daqing Road, Baoji, Shaanxi

Patentee before: Baoji Power Supply Bureau

CX01 Expiry of patent term

Granted publication date: 20100811

CX01 Expiry of patent term