CN105762815A - Serial-type stationary dynamic reactive booster - Google Patents
Serial-type stationary dynamic reactive booster Download PDFInfo
- Publication number
- CN105762815A CN105762815A CN201610231513.2A CN201610231513A CN105762815A CN 105762815 A CN105762815 A CN 105762815A CN 201610231513 A CN201610231513 A CN 201610231513A CN 105762815 A CN105762815 A CN 105762815A
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- China
- Prior art keywords
- iron core
- primary winding
- secondary coil
- controllable devices
- dynamic reactive
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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
- H02J3/1807—Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
-
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention relates to a serial-type stationary dynamic reactive booster. The serial-type stationary dynamic reactive booster comprises an iron core in the shape of a Chinese character "ri", two groups of coils, and a control part. Magnetic conductive iron cores are arranged around the iron core, the middle part of the iron core is an equivalent trapezoid iron core, and the equivalent trapezoid iron core is formed by two symmetrically-fixed isosceles trapezoid iron cores. The two groups of coils are wound on the middle part of the iron core, including a primary coil L1 and a secondary coil L2, and the primary coil L1 and the secondary coil L2 are connected in an end-to-end manner. The serial-type stationary dynamic reactive booster has the advantages that non-contact (coupling type) capacitive current injection and a non-contact (coupling type) boosting function are realized, and the functions such as active and passive dual-driving boosting intelligent switching, serial-parallel compensation function intelligent switching and self-coupling soft starting are realized.
Description
Technical field
The present invention relates to a kind of tandem type state type dynamic reactive booster, particularly relate to a kind of idle booster being carried out low-voltage improvement by series connection reactive current injection and active pressure regulation.
Background technology
Along with the high speed development of China's economic construction Yu living standards of the people, the quickening of the Course of Urbanization, the power consumption of rural area and the combination area of city and country increases sharply.Power consumption is big, and line transmission distance is remote, the uneven rural power grids 0.4kV distribution line increased pressure making originally just to have too many difficulties to cope with of sharing of load, and the requirement for electric power is also promoting at a high speed.
In actual electricity usage process, power transmission safe and stable, efficient is the precondition of normal electricity consumption.But for the rural power user of China, due to the reason such as distribution line is longer and low-voltage circuit is aging, often there is various problem in actual use procedure, cause burn-down of electric motor and electrical appliance cannot the situation such as normal operation, even can produce potential safety hazard.Therefore the voltage of line end is administered and is just particularly important.
Present stage power department mainly uses increase transformator, increases the modes such as supply line's wire diameter and carries out low-voltage transformation.But owing to being subject to economic factor and cost factor restriction, a large amount of areas can not carry out low-voltage retrofit work.In addition rural power grids low-voltage complex genesis, the impact pressure drop that big stroke is idle to be caused is difficult to process, low-voltage series compensation device cannot realize (low-voltage, the integrity problem of Large Copacity problem and directly series devices) always, promotes the transformation difficulty multiplication of rural power grids low-voltage.
Summary of the invention
For overcoming the deficiencies in the prior art, it is an object of the invention to provide a kind of tandem type state type dynamic reactive booster, realize the injection of non-contact type (manifold type) auto linear capacity current and non-contact type (manifold type) automatic boosting, the main passive pair of function driving intelligence switching of boosting, the switching of series and parallel function intelligence, certainly coupling soft start.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of tandem type state type dynamic reactive booster, including a day font iron core, two groups of coils, control parts, iron core surrounding is conducting magnet core, mandrel middle section is reciprocity trapezoidal iron core, the trapezoidal iron core of equity is formed by two isosceles trapezoid iron core symmetries are fixing, mandrel middle section is wound around two groups of coils, and respectively primary winding L1 and secondary coil L2, primary winding L1 and secondary coil L2 adopt head and the tail connected mode wiring.
Described primary winding L1 and secondary coil L2 calculates according to the feedback proportional of capacity current.
Described control part includes controllable devices K, capacitor C, pressure regulation part, primary winding L1 one end, secondary coil L2 one end are connected, the primary winding L1 other end is connected with capacitor C one end, pressure regulation part, the secondary coil L2 other end is connected with the capacitor C other end, controllable devices K one end, the controllable devices K other end is connected with the pressure regulation part other end, and the primary winding L1 other end, the controllable devices K other end are outfan；Coordination junction point and the controllable devices K other end of primary winding L1 and secondary coil L2 are input.
Described controllable devices K is contactless controllable devices.
Compared with prior art, the invention has the beneficial effects as follows:
Realize injection and non-contact type (manifold type) boost function of non-contact type (manifold type) capacity current.Achieve main passive pair and drive the function such as boosting intelligence switching, the switching of series and parallel function intelligence, certainly coupling soft start.Upgrade of rural power grids, shanty town voltage transformation etc. can be used in and use the field of booster.
1) this device can provide capacitive reactive power electric current for system under the premise that capacitor is not directly accessed to the system, and this capacity current changes according to the change of the size of the inductance current of line attachment.Overall process does not control device and participates in compensating access without time delay, and response time is close to 0.
2) the contrast trapezoidal design of this device, can make soft effect of Lock-in voltage in outfan transmission process.
3) this device can realize series connection capacity current inject and coupled boost freely switch.
4) this device can realize series compensation and shunt compensation and exists in set of device, and switches without time delay.
5) this device does not want boosting ratio to limit in theory, can be used for all low-voltage occasions.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the electrical schematic diagram of the present invention.
Fig. 3 is the structural representation of controllable devices K.
Fig. 4 is regulating process figure.
In Fig. 1: the 1-conducting magnet core 2-trapezoidal iron core 3-primary winding L14-secondary coil L2 of equity.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail, it should be noted that the enforcement of the present invention is not limited to following embodiment.
See Fig. 1, tandem type state type dynamic reactive booster, including a day font ferrum core, two groups of coils (high-voltage coil and low-voltage coil), control part, iron core surrounding is conducting magnet core 1, mandrel middle section is reciprocity trapezoidal iron core 2, the trapezoidal iron core 2 of equity is formed (isosceles trapezoid top minor face interfixes) by two isosceles trapezoid iron core symmetries are fixing, to increase magnetic damping, mandrel middle section is wound around two groups of coils, respectively primary winding L1 (3) and secondary coil L2 (4), primary winding L1 (3) and secondary coil L2 (4) adopts head and the tail connected mode wiring.
Seeing Fig. 2-Fig. 4, wherein, primary winding L1 and secondary coil L2 calculates according to the feedback proportional of capacity current.Control part includes controllable devices K, capacitor C, pressure regulation part, primary winding L1 one end, secondary coil L2 one end are connected, the primary winding L1 other end is connected with capacitor C one end, pressure regulation part, the secondary coil L2 other end is connected with the capacitor C other end, controllable devices K one end, the controllable devices K other end is connected with the pressure regulation part other end, and the primary winding L1 other end, the controllable devices K other end are outfan；Coordination junction point and the controllable devices K other end of primary winding L1 and secondary coil L2 are input.Controllable devices K is contactless controllable devices, can be made up of IGBT, IGCT, IEGT, IGCT, solid-state switch etc., and Fig. 3 show the structure of a kind of controllable devices K.Primary winding L1 also meets a capacitor C as compensating use.The core devices of pressure regulation part is dsp chip, uses dsp chip to carry out sampling and calculates, by control controllable devices K deciliter, controllable device carries out string and mends capacity current and inject and actively boosting.
During work, when controllable devices K disjunction, capacitor C is equivalent to access in electric power system by primary winding L1 coupling, when system flows through electric current, primary winding L1 two ends can produce one to flow through electric current and the relevant voltage of coil ratio, this voltage is added in capacitor C two ends, so as to produce capacity current.Capacity current is coupled back in system by primary winding LI, so as to realize the function of series compensation.When primary winding L1 is constant with the secondary coil L2 number of turn, the induced voltage that primary winding L1 two ends produce is only current related with what flow through, and namely in system, electric current is more big, and primary winding L1 both end voltage is more high, and capacitor C couple current is more big；In system, electric current is more little, and primary winding L1 both end voltage is more little, and capacitor C couple current is more little.After capacity current injected system, can inductance current in balance system, thus reducing the voltage drop that system causes due to inductance current.
When controllable devices K closes, secondary coil L2 is connected with power supply by controllable devices K, and primary winding L1, secondary coil L2 composition is from coupling booster transformer, and device provides actively boost function, now capacitor C connecing and equipment output end, plays the function of shunt compensation power factor.
The trapezoidal iron core of equity damps in the magnetic saturation of offer in a flash of device power transmission, makes the output voltage of device slowly to ramp up, plays the function of soft start.
The principle of control part is: adopt the mode of output voltage detection to be controlled.When output voltage is higher than setting value, device is in series compensation and capacitive compensation boost function.When output voltage is lower than voltage setting value, controllable devices K is put into by device automatically, feeds them into actively boosting and parallel power factor compensation function, and its control flow is shown in Fig. 4.
Realize injection and non-contact type (manifold type) boost function of non-contact type (manifold type) capacity current.Achieve main passive pair and drive the function such as boosting intelligence switching, the switching of series and parallel function intelligence, certainly coupling soft start.Upgrade of rural power grids, shanty town voltage transformation etc. can be used in and use the field of booster.
1) this device can provide capacitive reactive power electric current for system under the premise that capacitor is not directly accessed to the system, and this capacity current changes according to the change of the size of the inductance current of line attachment.Overall process does not control device and participates in compensating access without time delay, and response time is close to 0.
2) the contrast trapezoidal design of this device, can make soft effect of Lock-in voltage in outfan transmission process.
3) this device can realize series connection capacity current inject and coupled boost freely switch.
4) this device can realize series compensation and shunt compensation and exists in set of device, and switches without time delay.
5) this device does not want boosting ratio to limit in theory, can be used for all low-voltage occasions.
Claims (4)
1. a tandem type state type dynamic reactive booster, it is characterized in that, including a day font iron core, two groups of coils, control parts, iron core surrounding is conducting magnet core, mandrel middle section is reciprocity trapezoidal iron core, and reciprocity trapezoidal iron core is formed by two isosceles trapezoid iron core symmetries are fixing, and mandrel middle section is wound around two groups of coils, respectively primary winding L1 and secondary coil L2, primary winding L1 and secondary coil L2 adopt head and the tail connected mode wiring.
2. a kind of tandem type state type dynamic reactive booster according to claim 1, it is characterised in that described primary winding L1 and secondary coil L2 calculates according to the feedback proportional of capacity current.
3. a kind of tandem type state type dynamic reactive booster according to claim 1, it is characterized in that, described control part includes controllable devices K, capacitor C, pressure regulation part, primary winding L1 one end, secondary coil L2 one end are connected, the primary winding L1 other end is connected with capacitor C one end, pressure regulation part, the secondary coil L2 other end is connected with the capacitor C other end, controllable devices K one end, the controllable devices K other end is connected with the pressure regulation part other end, and the primary winding L1 other end, the controllable devices K other end are outfan；Coordination junction point and the controllable devices K other end of primary winding L1 and secondary coil L2 are input.
4. a kind of tandem type state type dynamic reactive booster according to claim 3, it is characterised in that described controllable devices K is contactless controllable devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231513.2A CN105762815B (en) | 2016-04-14 | 2016-04-14 | A kind of tandem type state type dynamic reactive booster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231513.2A CN105762815B (en) | 2016-04-14 | 2016-04-14 | A kind of tandem type state type dynamic reactive booster |
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| Publication Number | Publication Date |
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| CN105762815A true CN105762815A (en) | 2016-07-13 |
| CN105762815B CN105762815B (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610231513.2A Active CN105762815B (en) | 2016-04-14 | 2016-04-14 | A kind of tandem type state type dynamic reactive booster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786355A (en) * | 2020-06-23 | 2020-10-16 | 上海电器科学研究所（集团）有限公司 | Protection device and protection method for restraining short circuit of direct current bus support capacitor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4166992A (en) * | 1977-08-04 | 1979-09-04 | International Business Machines Corporation | Symmetrical structure for shunt controlled regulated transformer |
| WO1999017314A2 (en) * | 1997-09-30 | 1999-04-08 | Abb Ab | A step-free induction controlled voltage regulator |
| CN1776838A (en) * | 2005-12-06 | 2006-05-24 | 李永健 | Local magnetic saturation electrically-tuned core reactor |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN202363229U (en) * | 2011-12-15 | 2012-08-01 | 湖南科太电气有限公司 | Electric reactor, power supply system and electric motor voltage regulating device |
| CN205622234U (en) * | 2016-04-14 | 2016-10-05 | 国网辽宁省电力有限公司鞍山供电公司 | Idle stepup transformer of static formula of tandem type developments |
-
2016
- 2016-04-14 CN CN201610231513.2A patent/CN105762815B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4166992A (en) * | 1977-08-04 | 1979-09-04 | International Business Machines Corporation | Symmetrical structure for shunt controlled regulated transformer |
| WO1999017314A2 (en) * | 1997-09-30 | 1999-04-08 | Abb Ab | A step-free induction controlled voltage regulator |
| CN1776838A (en) * | 2005-12-06 | 2006-05-24 | 李永健 | Local magnetic saturation electrically-tuned core reactor |
| CN101651030A (en) * | 2009-08-07 | 2010-02-17 | 中国西电电气股份有限公司 | Autotransformer with low-voltage compensation |
| CN202363229U (en) * | 2011-12-15 | 2012-08-01 | 湖南科太电气有限公司 | Electric reactor, power supply system and electric motor voltage regulating device |
| CN205622234U (en) * | 2016-04-14 | 2016-10-05 | 国网辽宁省电力有限公司鞍山供电公司 | Idle stepup transformer of static formula of tandem type developments |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786355A (en) * | 2020-06-23 | 2020-10-16 | 上海电器科学研究所（集团）有限公司 | Protection device and protection method for restraining short circuit of direct current bus support capacitor |
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| CN105762815B (en) | 2018-02-27 |
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