CN2439745Y - Stepped voltage regulating type high voltage dynamic reactive compensator - Google Patents
Stepped voltage regulating type high voltage dynamic reactive compensator Download PDFInfo
- Publication number
- CN2439745Y CN2439745Y CN 00236026 CN00236026U CN2439745Y CN 2439745 Y CN2439745 Y CN 2439745Y CN 00236026 CN00236026 CN 00236026 CN 00236026 U CN00236026 U CN 00236026U CN 2439745 Y CN2439745 Y CN 2439745Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- compensation
- pressure
- load
- high 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
The utility model relates to a high-voltage and dynamic reactive compensator with a stepped voltage regulating type, which belongs to the field of a reactive compensation device of a high-voltage electric power system, and is suitable for towing a power supply network for a high-voltage power network or an electrified railway to improve the power supply power factor and the power supply quality. The utility model is characterized in that the high-voltage and dynamic reactive compensator is provided with a special variac which is matched with a loaded voltage regulating tap-switch, and is controlled by an automatic control device with the high-voltage reactive compensation, and the dynamic reactive compensation is realized by regulating in dynamic state the working voltage of a compensation capacitor according to the change of the inductive reactive power of a compensated system. The utility model solves the problems of the prior art, such as complicated device, large investment, difficult maintenance, etc., has the advantages of simple structure, low cost and reliable operation, has no influence for the filtering effect, and has quick response speed of the high-voltage dynamic compensation.
Description
The utility model relates to the high-voltage electric power system reactive power compensation device, is applicable to high-voltage fence or electric railway traction power supply net, to improve its output power factor and power supply quality.
At present in the reactive-load compensation equipment of various countries' high-voltage electric power system, can realize dynamically real compensation being had synchronous compensator, SVC compensation arrangement, a thyristor controlled reactor compensation etc., though these equipment have the advantages that response speed is fast, can realize the dynamic real-time compensation, but its equipment complexity, investment is big, expense height difficult in maintenance.
The purpose of this utility model is exactly to overcome the shortcoming that above-mentioned prior art exists, and provides a kind of tracking velocity fast, and the life-span is long, and equipment investment is little, grade pressure-adjusting type high pressure dynamic reactive compensation device that has that can realize the dynamic real-time compensation that maintenance cost is low.
The purpose of this utility model can realize in the following manner:
Utilize existing high-pressure reactive compensation automatic control equipment, high voltage load switch, compensation condenser, the filtering current limiting reactor, by the high voltage bus of compensation equipment, the characteristics of the invention are, extraordinary variac 1 is set, on-load tap changer 2, a line of high voltage load switch 13 1 termination high voltage bus 12, the extraordinary variac 1 of another termination, each pressure regulation level lead-out wire of extraordinary variac 1 connects with the corresponding tap position of on-load tap changer 2 respectively, the common point of on-load tap changer 2 is pressure regulation outputs, this output termination compensation condenser 5, compensation condenser 5 connects another line of high voltage bus 12 by filtering current limiting reactor 7, on high voltage bus 12, be connected to load current and detect instrument transformer 10, load voltage detects instrument transformer 11, load current detects instrument transformer 10, the other end of load voltage detection instrument transformer 11 meets the signal input port a of high-pressure reactive compensation automatic control equipment 8 respectively, b, the operating coil C of high voltage load switch 13, the action controlling organization d of on load tap changer 2 connects high-pressure reactive compensation automatic control equipment 8 respectively.
Between extraordinary variac 1 and high voltage load switch 13, be connected to high voltage input terminal current transformer 14, high voltage input terminal voltage transformer 15; between on-load tap changer 2 and compensation condenser 5, be connected to pressure regulation output end current instrument transformer 3, pressure regulation output end voltage instrument transformer 4; be connected to compensation circuit protection voltage transformer 6 at the two ends of compensation condenser 5, the other end of above-mentioned each current transformer, voltage transformer connects high-pressure reactive compensation automatic control equipment 8 respectively.
Major advantage of the present utility model is: 1. it is economical and practical to adopt capacitor to carry out reactive power compensation, especially adopt extraordinary variac as voltage regulating transformer, can reduce cost, reduce loss significantly, compare with the automatic compensation equipment of direct grouping switching, how many fringe cost and losses do not increase, but compensation effect and reliability obviously improve; 2. utilize on-load tap changer to finish and switch the characteristics that transition does not have breakpoint, solved the shock problem that the electric capacity off-grid causes in the pressure regulation process by resistance; 3. the mode that adopts extraordinary variac to combine with on-load tap changer, because each pressure regulation tap steric hindrance reactance voltage of this transformer is very low, induction reactance and capacitive reactance ratio are constant in the pressure regulation process, make dynamic compensating device still have effect with the high order harmonic component of the same number of times of static compensating device filtering, thereby when existing system transformed, can make full use of former building-out capacitor and filter reactance.As seen the economic benefit of this device is obvious, structure advanced person, and tracking velocity is fast.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model circuit theory diagrams
The utility model adopts extraordinary variac 1 to cooperate with on load tap changer 2, be controlled by high-pressure reactive compensation automatic control equipment 8, according to by the variation of bucking-out system lagging reactive power, the operating voltage at dynamic adjustments compensation condenser 5 two ends, change the usage factor of capacitance, to regulate the reactive power total amount that compensation condenser 5 sends, realize the purpose of dynamic passive compensation.In the present embodiment, extraordinary variac 1 its electromagnetic capacity is 0.13～0.5 times of maximum compensation capacity, and pressure regulation progression is 3～12 grades.
On-load tap changer 2 is on-load tap changer or the multicontact switches that switch transition resistance that have through transforming that use on the present power transformer.
But extraordinary variac 1 and on-load tap changer 2 partial installations also can be with adorning in one the case.
The load current that is connected on the high voltage bus 12 detects instrument transformer 10 and meritorious, the reactive power of load voltage detection instrument transformer 11 detection high-pressure systems; parameters such as harmonic wave; and information delivered to high-pressure reactive compensation automatic control equipment 8; this device 8 is finished voltage, electric current, meritorious, idle, overvoltage, the isoparametric detection of overcurrent and calculating, and control on load tap changer 2 and high voltage load switch 13 are realized dynamic auto adjusting and protection respectively.High voltage input terminal current transformer 14 detects effective offset current; and compensation arrangement carried out over-current detection; high voltage input terminal voltage transformer 15 detects the operating voltage of compensation arrangement; compensation condenser 5 and filtering current limiting reactor 7 constitute the filtering compensation loop; compensation circuit protection voltage transformer 6 detects the terminal voltage of capacitor 5, and pressure regulation output end current instrument transformer 3 and pressure regulation output end voltage instrument transformer 4 are used for filtering compensation loop voltage, current detecting.
Grade pressure-adjusting type high pressure dynamic reactive compensation device of being made up of each part mentioned above that has makes full use of the characteristics that the big and on load tap changer pressure regulation of autotransformer transmission capacity does not have breakpoint, can be used for 10kV～220kV high pressure compensation, also can be used for traction substation of electric railway 25kV～31kV (27.5kV) high pressure compensation.
Claims (3)
1. one kind has a grade pressure-adjusting type high pressure dynamic reactive compensation device, comprise the high-pressure reactive compensation automatic control equipment, high voltage load switch, compensation condenser, the filtering current limiting reactor, by the high voltage bus of compensation equipment, it is characterized in that: extraordinary variac (1) is set, on-load tap changer (2), a line of high voltage load switch (13) one termination high voltage bus (12), the extraordinary variac (1) of another termination, each pressure regulation level lead-out wire of extraordinary variac (1) connects with the corresponding tap position of on-load tap changer (2) respectively, the common point of on-load tap changer (2) is the pressure regulation output, this exports termination compensation condenser (5), compensation condenser (5) connects another line of high voltage bus (12) by filtering current limiting reactor (7), on high voltage bus (12), be connected to load current and detect instrument transformer (10), load voltage detects instrument transformer (11), load current detects instrument transformer (10), the other end that load voltage detects instrument transformer (11) connects high-pressure reactive compensation automatic control equipment (8) respectively, the operating coil (C) of high voltage load switch (13), the action controlling organization (d) of on load tap changer (2) connects high-pressure reactive compensation automatic control equipment (8) respectively.
2. according to claim 1 have a grade pressure-adjusting type high pressure dynamic reactive compensation device; it is characterized in that: between extraordinary variac (1) and high voltage load switch (13), be connected to high voltage input terminal current transformer (14); high voltage input terminal voltage transformer (15); taste in on-load tap changer (2) and benefit and to be connected to pressure regulation output end current instrument transformer (3) between the capacitor (5); pressure regulation output end voltage instrument transformer (4); be connected to compensation circuit protection voltage transformer (6) at the two ends of compensation condenser (5), above-mentioned each current transformer; the other end of voltage transformer connects high-pressure reactive compensation automatic control equipment (8) respectively.
3. according to claim 1 have a grade pressure-adjusting type high pressure dynamic reactive compensation device, it is characterized in that:
Its electromagnetic capacity of described extraordinary variac (1) is 0.13～0.5 times of maximum compensation capacity, and pressure regulation progression is 3～12 grades;
Described on-load tap changer (2) is on-load tap changer or the multicontact switch that switches transition resistance that has through transforming that uses on the present power transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236026 CN2439745Y (en) | 2000-05-31 | 2000-05-31 | Stepped voltage regulating type high voltage dynamic reactive compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236026 CN2439745Y (en) | 2000-05-31 | 2000-05-31 | Stepped voltage regulating type high voltage dynamic reactive compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2439745Y true CN2439745Y (en) | 2001-07-18 |
Family
ID=33597640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00236026 Expired - Fee Related CN2439745Y (en) | 2000-05-31 | 2000-05-31 | Stepped voltage regulating type high voltage dynamic reactive compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2439745Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352125C (en) * | 2005-03-16 | 2007-11-28 | 张文会 | Capacitor and series reactor synchronous capacitance and reactance modulation switch |
| CN102214927A (en) * | 2011-06-17 | 2011-10-12 | 山东新科特电气有限公司 | Automatic-coupling continuous regulable quick reactive-power automatic compensation device |
| CN103236743A (en) * | 2013-05-07 | 2013-08-07 | 河南龙翔电气有限责任公司 | Combined intelligent amorphous alloy transformer |
| CN103701136A (en) * | 2013-12-04 | 2014-04-02 | 国家电网公司 | Automatic reactive compensation intelligent power distribution transformer |
| CN105529725A (en) * | 2016-01-28 | 2016-04-27 | 南京交通职业技术学院 | Non-contact reactive compensation apparatus |
| CN109672188A (en) * | 2018-12-11 | 2019-04-23 | 陈君诚 | Self-coupling type reactive power dynamic compensation device |
| WO2020217109A1 (en) * | 2019-04-22 | 2020-10-29 | Abb Power Grids Switzerland Ag | Traction tranformer with a four-limb core |
-
2000
- 2000-05-31 CN CN 00236026 patent/CN2439745Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352125C (en) * | 2005-03-16 | 2007-11-28 | 张文会 | Capacitor and series reactor synchronous capacitance and reactance modulation switch |
| CN102214927A (en) * | 2011-06-17 | 2011-10-12 | 山东新科特电气有限公司 | Automatic-coupling continuous regulable quick reactive-power automatic compensation device |
| CN103236743A (en) * | 2013-05-07 | 2013-08-07 | 河南龙翔电气有限责任公司 | Combined intelligent amorphous alloy transformer |
| CN103236743B (en) * | 2013-05-07 | 2016-02-10 | 河南龙翔电气有限责任公司 | Combined intelligent amorphous alloy transformer |
| CN103701136A (en) * | 2013-12-04 | 2014-04-02 | 国家电网公司 | Automatic reactive compensation intelligent power distribution transformer |
| CN105529725A (en) * | 2016-01-28 | 2016-04-27 | 南京交通职业技术学院 | Non-contact reactive compensation apparatus |
| CN105529725B (en) * | 2016-01-28 | 2018-09-11 | 南京交通职业技术学院 | A kind of contactless reactive power compensator |
| CN109672188A (en) * | 2018-12-11 | 2019-04-23 | 陈君诚 | Self-coupling type reactive power dynamic compensation device |
| WO2020217109A1 (en) * | 2019-04-22 | 2020-10-29 | Abb Power Grids Switzerland Ag | Traction tranformer with a four-limb core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108365605A (en) | A kind of low-voltage network three-phase line low-voltage governing system and method | |
| CN101630841A (en) | Dynamic harmonic filter | |
| CN2439745Y (en) | Stepped voltage regulating type high voltage dynamic reactive compensator | |
| CN103840442A (en) | Short-circuit fault current limiter | |
| CN203014389U (en) | High-voltage reactive power automatic compensation device | |
| CN203632254U (en) | Automatic reactive compensation intelligent power distribution transformer | |
| CN104734161A (en) | Variable series-connection reactance dynamic voltage-adjustment reactive compensation method and device | |
| CN207427022U (en) | A kind of intelligent load-balancing device | |
| CN111404172B (en) | Mixed type dynamic reactive power compensation system and method based on high-impedance transformer | |
| CN201048291Y (en) | Parallel high voltage dynamic reactive compensator | |
| CN200969518Y (en) | Transformer station voltage front-and-back reactive automatic regulation device | |
| CN214958712U (en) | Active comprehensive voltage regulating system based on 10kV series compensation | |
| CN203553945U (en) | Shunt magnetically-controlled reactor-type dynamic reactive voltage regulation device | |
| CN2488215Y (en) | Reactive compensator | |
| CN211790774U (en) | Mixed type dynamic reactive power compensation system based on high-impedance transformer | |
| CN112436521A (en) | Active comprehensive voltage regulating system based on 10kV series compensation | |
| CN211579602U (en) | Line reactive voltage intelligent regulation system suitable for petrochemical sudden change load | |
| CN201466738U (en) | Reactive power compensation device of grid | |
| CN1330066C (en) | Method for adjusting reactive power of capacitor and apparatus therefor | |
| CN201821114U (en) | Voltage regulating type automatic reactive power compensation device of transformer substation | |
| CN207664626U (en) | Dynamic voltage adjusting device of power distribution network | |
| CN2819584Y (en) | Automatic voltage ractive adjuster of substation | |
| CN2631097Y (en) | Dynamic reactive compensating and filtering device | |
| CN206585333U (en) | Transformer pressure-reducing formula auto-reactive compensation equipment | |
| CN2914444Y (en) | Voltage regulating type low-voltage wattless compensator device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |