CN104300551A - Reactive power compensation device with passive filter function - Google Patents
Reactive power compensation device with passive filter function Download PDFInfo
- Publication number
- CN104300551A CN104300551A CN201410535115.0A CN201410535115A CN104300551A CN 104300551 A CN104300551 A CN 104300551A CN 201410535115 A CN201410535115 A CN 201410535115A CN 104300551 A CN104300551 A CN 104300551A
- Authority
- CN
- China
- Prior art keywords
- reactive power
- unit
- passive filtering
- iron core
- coil
- 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.)
- Granted
Links
Classifications
-
- 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
- H02J3/1885—Arrangements for adjusting, eliminating or compensating reactive power in networks using rotating means, e.g. synchronous generators
-
- 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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The invention discloses a reactive power compensation device with the passive filter function. The reactive power compensation device is used in a power grid bus and comprises a signal collecting device, a controller, a reactive power compensation unit and a passive filter unit. The signal collecting device is used for collecting signals and sending the signals to the controller. The reactive power compensation unit comprises a first inductance unit, a first movable unit and a first capacitance device. The first inductance unit comprises a first coil and a first iron core. The passive filter unit comprises a second inductance unit, a second movable unit and a second capacitance device. The second inductance unit comprises a second coil and a second iron core. The controller generates the reactive power compensation control amount and the passive filter control amount, and controls the first movable unit to adjust the length, in the first coil, of the first iron core, and the second movable unit to adjust the length, in the second coil, of the second iron core. The reactive power compensation device can carry out reactive power compensation and harmonic wave management at the same time, site installing space is reduced, and adjusting time is shortened.
Description
Technical field
The present invention relates to a kind of reactive power compensator with passive filtering function.
Background technology
Due to the develop rapidly of power electronic technology, the nonlinear power consumers of the opering characteristic of electric apparatus such as electricity-saving lamp, computer, RHVC, rectifying installation and UPS (uninterrupted power supply) are increasingly extensive, bring more and more serious humorous wave interference to electrical network, thus affect quality of power supply decline.Inductive load rolls up makes the power factor of user also increasingly decline, and thus user side harmonic filter and reactive power compensator are used more and more widely.
As only carried out reactive power compensation, because many power consumers exist larger humorous wave interference, reactive power compensator just cannot normally work: electric current exceeds standard, generation is vibrated and noise.Thus at some electric field configuration reactive power compensator and filter, to solve humorous wave interference.
But the reactor that now general reactive power compensator configures is 5%, 6%, 7% or 12%, 14%, is namely fixing, can not change use is on-the-spot.And existing reactive power compensator does not have filter function, filter and reactive power compensator need to install respectively, and the cost of installation and equipment is higher.
Summary of the invention
The technical problem to be solved in the present invention is that the reactive power compensation amount provided to overcome reactive power compensator in prior art is fixed, on-the-spot grid condition cannot be adapted to, and reactive power compensation cannot provide the defect of filter function, there is provided one to adapt to electrical network, automatically regulate inductance parameters and there is the reactive power compensator of passive filtering function.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of reactive power compensator with passive filtering function, for electrical network bus, its feature is, described reactive power compensator comprises a signal pickup assembly, a controller, a reactive compensation unit and a passive filtering unit
Described signal pickup assembly is for gathering the signal of described electrical network bus and described signal being sent to described controller;
Described reactive compensation unit comprises one first inductance unit, one first mobile unit and one first capacitive means, described first inductance unit comprise one first coil and one in described first coil along the first iron core of the axial-movement of the first coil;
Described passive filtering unit comprises one second inductance unit, one second mobile unit and one second capacitive means, described second inductance unit comprise one second coil and one in described second coil along the second iron core of the axial-movement of the second coil;
Described controller is used for generating the control of reactive power compensating amount and passive filtering controlled quentity controlled variable according to described signal, and controls the length of described first mobile unit described first iron core of adjustment in described first coil according to described the control of reactive power compensating amount, regulate the length of described second iron core in described second coil according to described second mobile unit of described passive filtering controlled quentity controlled variable control.
By the data acquisition to electrical network bus, can be gather voltage signal and flow through reactive compensation unit current signal, realize reactive power compensation amount that reactive compensation unit provides and passive filtering unit regulates in real time.The inductance parameters of reactive compensation unit and passive filtering unit, the reactive power compensation amount that can provide are no longer changeless, effectively can adapt to on-the-spot installation environment.
By the signals collecting to electrical network bus, the signal utilizing existing computational methods and computing chip just can analyze to collect also determines power factor and harmonic information thus, and then draw, reactive compensation unit needs to provide how many compensation rates just can satisfy the demands, and the inductance parameters of passive filtering needs to be adjusted to the requirement that how much can meet resonance frequency.
The reactive power compensator of the application can not only realize reactive power compensation, and has passive filtering function, can carry out reactive power compensation and harmonic wave control simultaneously.Decrease in-site installation space and debug time.Reactive power compensation and harmonic wave control can its duties of each thing, do not interfere with each other respective independence.Respectively there is the protective circuit of self.
Preferably, described second capacitive means is connected with described second inductance unit, and described passive filtering unit is parallel to described reactive compensation unit, and the output of passive filtering unit is connected with described electrical network bus by a fuse.
Preferably, capacitance at least one order of magnitude greatly that the capacitance that described first capacitive means provides provides than described second capacitive means.
The order of magnitude refers to the power of a series of 10, and the ratio namely between adjacent two orders of magnitude is 10.Be arranged so that passive filtering unit does not have an impact to reactive compensation unit by above-mentioned capacitance.
Preferably, described first capacitive means comprises some capacitor cells parallel with one another, all corresponding numbering of each capacitor cell, and described controller screens described numbering according to described the control of reactive power compensating amount and the capacitor cell corresponding to numbering that filters out of conducting.
When described parallel connection refers to that capacitor cell forms loop, capacitor cell is parallel with one another.Each capacitor cell can be connected a switch, and described controller controls the conducting of described capacitor by control switch.Capacitor cell corresponding to numbering after being selected by conducting, also confirms the quantity of the capacitor cell needing conducting.
Preferably, the excursion of the numerical value of the inductance value of described first inductance unit equals 0.03C
1~ 0.2C
1, wherein C
1for the numerical value of the capacitance of described first capacitive means, the excursion of the numerical value of the inductance value of described second inductance unit equals 0.02C
2~ 0.2C
2, wherein C
2for the numerical value of the capacitance of described second capacitive means.
By the setting to above-mentioned inductance value and capacitance, can filtering, avoid in most cases humorous wave interference.
Preferably, described signal comprises the voltage signal of electrical network bus and the current signal through described reactive compensation unit.
Preferably described first iron core and described second iron core are microcrystallizing alloy iron core.
Microcrystallizing alloy is that a kind of metal grain is refined to micron-sized cast alloy materials, and the alloy with this ultra micro crystal grain can show the comprehensive mechanical performance more excellent than other similar alloys and mechanical property, superpower stability and dimensional stability, fabulous antifriction quality and good resistance to wear.Utilize microcrystallizing alloy iron core can improve the performance of the reactive power compensator of the application.
Preferably, described first mobile unit and described second mobile unit include a synchronous machine, a gear and one and the tooth bar of described gears meshing, described gear is located on the rotor of described synchronous machine, described tooth bar is connected with iron core, the synchronous machine that described controller is used for controlling according to described the control of reactive power compensating amount the first mobile unit rotates to regulate the length of the first iron core in described first coil, and the synchronous machine controlling the second mobile unit according to described passive filtering controlled quentity controlled variable rotates to regulate the length of the second iron core in described second coil.
Described tooth bar is connected with iron core, refers to that the tooth bar in the first mobile unit is connected with the first iron core, tooth bar in the second mobile unit is connected with the second iron core.The axis (center line) of tooth bar and the axis of iron core can on the same line, and described straight line is also the axis of coil.Utilize the cooperation of described gear and described tooth bar, by the rectilinear motion that the convert rotational motion of synchronous machine becomes on described straight line.Described inductance controlled quentity controlled variable can be the rotation controlled quentity controlled variable to motor, by completing the control of iron core length in coil to the control of motor, to regulate described inductance parameters.
Preferably, described reactive power compensator also comprises a display unit, and described display unit is for showing the job information of described reactive compensation unit and/or described passive filtering unit.
Preferably, described job information comprises one or more in the quantity of the capacitor cell of the work that is in of reactive compensation unit current the reactive power compensation amount, the harmonic frequency of passive filtering cell operation, the power factor of described electrical network bus, the harmonic information of described electrical network bus, the inductance parameters of inductance unit, the capacitance parameter of the first capacitive means or the first capacitive means that provide and numbering.
Described display unit shows multiple real time information, and handled easily personnel grasp field condition.For described reactive power compensator installation, work provide convenience.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is: not only can carry out reactive power compensation but also can carry out harmonic wave control.Reactive power compensator adjustable inductance value makes reactive power compensation circuit avoid the major harmonic frequency of electrical network.Passive filtering unit adjustable inductance value makes the major harmonic frequency of its resonance frequency and electrical network close, to make the major harmonic of electrical network flow to the earth through the inductance of passive filtering unit and electric capacity, thus administers the harmonic wave of electrical network.Scene only needs to install " having the reactive power compensator of passive filtering function " cabinet just can carry out reactive power compensation and harmonic wave control simultaneously.Decrease in-site installation space and debug time.Reactive power compensation and harmonic wave control can its duties of each thing, do not interfere with each other respective independence.Respectively there is the protective circuit of self.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reactive power compensator of the embodiment of the present invention.
Fig. 2 is the structural representation of the first mobile unit of the embodiment of the present invention.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment
See Fig. 1, Fig. 2, the present embodiment provides a kind of reactive power compensator with passive filtering function, for electrical network bus 1, described reactive power compensator comprises signal pickup assembly 11, controller 12, display unit 15, reactive compensation unit and a passive filtering unit.
Described signal pickup assembly is for gathering the signal of described electrical network bus 1 and described signal being sent to described controller, and described signal comprises the voltage signal of electrical network bus 1 and the current signal through described reactive power compensator.
Described controller is used for generating the control of reactive power compensating amount and passive filtering controlled quentity controlled variable according to described signal.
Described reactive compensation unit comprises one first inductance unit 13,1 first mobile unit 14 and one first capacitive means 16, described first inductance unit comprise one first coil 131 and one in described first coil 131 along the first iron core 132 of the axial-movement of the first coil 131.
Described first capacitive means comprises some capacitor cells parallel with one another, all corresponding numbering of each capacitor cell, and described controller screens described numbering according to described the control of reactive power compensating amount and the capacitor cell corresponding to numbering that filters out of conducting.
The excursion of the numerical value of the inductance value of described first inductance unit equals 0.03C
1~ 0.2C
1, wherein C
1for the numerical value of the capacitance of described first capacitive means.0.03C
1~ 0.2C
1it is the adjustable range of the inductance value of the first inductance unit.
Described passive filtering unit comprises one second inductance unit 17,1 second mobile unit and one second capacitive means 18, described second inductance unit 17 comprise one second coil and one in described second coil along the second iron core of the axial-movement of the second coil.
Described second capacitive means 18 is connected with described second inductance unit 17, and described passive filtering unit is parallel to described reactive compensation unit, and the output of passive filtering unit is connected with described electrical network bus by a fuse 19.
The excursion of the numerical value of the inductance value of described second inductance unit equals 0.02C
2~ 0.2C
2, wherein C
2for the numerical value of the capacitance of described second capacitive means 18.0.02C
2~ 0.2C
2it is the adjustable range of the inductance value of the second inductance unit.
Wherein, large more than 10 times of the capacitance that the capacitance that described first capacitive means provides provides than described second capacitive means.
Described first mobile unit 14 and described second mobile unit include synchronous machine 141, gear 142 and one and the tooth bar 143 of described gears meshing, and described gear is located on the rotor 144 of described synchronous machine, and described tooth bar 143 is connected with iron core.The structural representation of what Fig. 2 represented is the first mobile unit 14, in the present embodiment, the structure of the second mobile unit is identical with the first mobile unit.
The synchronous machine of described controller also for controlling the first mobile unit according to described the control of reactive power compensating amount rotates to regulate the length of the first iron core 132 in described first coil, and the synchronous machine controlling the second mobile unit according to described passive filtering controlled quentity controlled variable rotates to regulate the length of the second iron core in described second coil.
Described display unit is for showing the job information of described reactive compensation unit and/or described passive filtering unit.
Described job information comprises the quantity of the capacitor cell of the work that is in of reactive compensation unit current the reactive power compensation amount, the harmonic frequency of passive filtering cell operation, the power factor of described electrical network bus, the harmonic information of described electrical network bus, the inductance parameters of inductance unit, the capacitance parameter of the first capacitive means or the first capacitive means that provide.
The course of work of the present embodiment reactive power compensator is:
Reactive power compensator access electrical network bus, signal pickup assembly 11 gathers the electric current flowing through reactive compensation unit and the mains voltage signal of electrical network bus by voltage transformer 111 summation current transformer 112.And described current signal and voltage signal are transferred to described controller.
Described controller analyzes described current signal and voltage signal, determines power factor and harmonic information.The reactive power compensation amount of described controller required for electrical network and resonance frequency generate the control of reactive power compensating amount and passive filtering controlled quentity controlled variable.
Described controller utilizes the control of reactive power compensating amount or the rotation of passive filtering controlled quentity controlled variable to the synchronous machine of correspondence to control, synchronous machine be rotated through the rectilinear motion that gear and tooth bar change into described microcrystallizing alloy iron core, thus regulate the length of microcrystallizing alloy iron core in coil.In the present embodiment, by the calculating to power factor and harmonic information, the iron core of the reactive compensation unit length be in coil is needed to be 15mm, under described length, the inductance parameters of the first inductance unit 13 can meet the demand of current electric grid, and the length that current first iron core is in coil is 5mm, then controller controls the direction that iron core has entered the first coil, mobile 10mm.And described synchronous machine often revolves the iron core that turns around and moves 1mm, therefore in order to make described first iron core move 10mm along the direction entering the first coil, described controller controls described synchronous machine and rotates 10 circles.And for the same reactive compensation unit of control mode of the iron core in passive filtering unit.
Described controller utilizes described the control of reactive power compensating amount control the quantity of capacitor cell described in described first capacitive means conducting and specify the capacitor cell of numbering.In the present embodiment, the capacitance parameter needing 3 in parallel capacitor cells to provide can meet the demand of current electric grid, and current be only numbered 01 capacitor cell conducting, then controller controls the switch conduction of the capacitor cell of numbering 02,03.
The reactive power compensator with passive filtering function of the present embodiment not only can carry out reactive power compensation but also can carry out harmonic wave control.Reactive power compensator adjustable inductance value makes reactive power compensation circuit avoid the major harmonic frequency of electrical network.Passive filtering unit adjustable inductance value makes the major harmonic frequency of its resonance frequency and electrical network close, to make the major harmonic of electrical network flow to the earth through the inductance of passive filtering unit and electric capacity, thus administers the harmonic wave of electrical network.Scene only needs to install " having the reactive power compensator of passive filtering function " cabinet just can carry out reactive power compensation and harmonic wave control simultaneously.Decrease in-site installation space and debug time.Reactive power compensation and harmonic wave control can its duties of each thing, do not interfere with each other respective independence.Respectively there is the protective circuit of self.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection scope of the present invention.
Claims (10)
1. have a reactive power compensator for passive filtering function, for electrical network bus, it is characterized in that, described reactive power compensator comprises a signal pickup assembly, a controller, a reactive compensation unit and a passive filtering unit,
Described signal pickup assembly is for gathering the signal of described electrical network bus and described signal being sent to described controller;
Described reactive compensation unit comprises one first inductance unit, one first mobile unit and one first capacitive means, described first inductance unit comprise one first coil and one in described first coil along the first iron core of the axial-movement of the first coil;
Described passive filtering unit comprises one second inductance unit, one second mobile unit and one second capacitive means, described second inductance unit comprise one second coil and one in described second coil along the second iron core of the axial-movement of the second coil;
Described controller is used for generating the control of reactive power compensating amount and passive filtering controlled quentity controlled variable according to described signal, and controls the length of described first mobile unit described first iron core of adjustment in described first coil according to described the control of reactive power compensating amount, regulate the length of described second iron core in described second coil according to described second mobile unit of described passive filtering controlled quentity controlled variable control.
2. there is the reactive power compensator of passive filtering function as claimed in claim 1, it is characterized in that, described second capacitive means is connected with described second inductance unit, described passive filtering unit is parallel to described reactive compensation unit, and the output of passive filtering unit is connected with described electrical network bus by a fuse.
3. there is the reactive power compensator of passive filtering function as claimed in claim 2, it is characterized in that, capacitance at least one order of magnitude greatly that the capacitance that described first capacitive means provides provides than described second capacitive means.
4. there is the reactive power compensator of passive filtering function as claimed in claim 3, it is characterized in that, described first capacitive means comprises some capacitor cells parallel with one another, the all corresponding numbering of each capacitor cell, described controller screens described numbering according to described the control of reactive power compensating amount and the capacitor cell corresponding to numbering that filters out of conducting.
5. have the reactive power compensator of passive filtering function as claimed in claim 3, it is characterized in that, the excursion of the numerical value of the inductance value of described first inductance unit equals 0.03C
1~ 0.2C
1, wherein C
1for the numerical value of the capacitance of described first capacitive means, the excursion of the numerical value of the inductance value of described second inductance unit equals 0.02C
2~ 0.2C
2, wherein C
2for the numerical value of the capacitance of described second capacitive means.
6. have the reactive power compensator of passive filtering function as claimed in claim 1, it is characterized in that, described signal comprises the voltage signal of electrical network bus and the current signal through described reactive compensation unit.
7. have the reactive power compensator of passive filtering function as claimed in claim 1, it is characterized in that, described first iron core and described second iron core are microcrystallizing alloy iron core.
8. there is the reactive power compensator of passive filtering function as claimed in claim 1, it is characterized in that, described first mobile unit and described second mobile unit include a synchronous machine, one gear and one and the tooth bar of described gears meshing, described gear is located on the rotor of described synchronous machine, described tooth bar is connected with iron core, the synchronous machine that described controller is used for controlling according to described the control of reactive power compensating amount the first mobile unit rotates to regulate the length of the first iron core in described first coil, the synchronous machine controlling the second mobile unit according to described passive filtering controlled quentity controlled variable rotates to regulate the length of the second iron core in described second coil.
9. there is the reactive power compensator of passive filtering function as claimed in claim 1, it is characterized in that, described reactive power compensator also comprises a display unit, and described display unit is for showing the job information of described reactive compensation unit and/or described passive filtering unit.
10. there is the reactive power compensator of passive filtering function as claimed in claim 6, it is characterized in that, described job information comprises one or more in the quantity of the capacitor cell of the work that is in of reactive compensation unit current the reactive power compensation amount, the harmonic frequency of passive filtering cell operation, the power factor of described electrical network bus, the harmonic information of described electrical network bus, the inductance parameters of inductance unit, the capacitance parameter of the first capacitive means or the first capacitive means that provide and numbering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535115.0A CN104300551B (en) | 2014-10-11 | 2014-10-11 | Reactive power compensation device with passive filter function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535115.0A CN104300551B (en) | 2014-10-11 | 2014-10-11 | Reactive power compensation device with passive filter function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300551A true CN104300551A (en) | 2015-01-21 |
| CN104300551B CN104300551B (en) | 2017-02-15 |
Family
ID=52320181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410535115.0A Active CN104300551B (en) | 2014-10-11 | 2014-10-11 | Reactive power compensation device with passive filter function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300551B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329542A (en) * | 2015-07-10 | 2017-01-11 | 美登思电气（上海）有限公司 | Control method and system for reactive power compensation device |
| CN107240919A (en) * | 2017-06-21 | 2017-10-10 | 上海广吉电气有限公司 | Intelligent active filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200997531Y (en) * | 2006-12-26 | 2007-12-26 | 中冶南方工程技术有限公司 | Power-supply passive filter |
| CN200997530Y (en) * | 2006-12-26 | 2007-12-26 | 中冶南方工程技术有限公司 | Power-supply passive filter |
| CN101938130A (en) * | 2010-09-15 | 2011-01-05 | 哈尔滨工业大学 | High voltage filter and dynamic reactive power compensation control system combining PPF with TSC and control method thereof |
| CN204118752U (en) * | 2014-10-11 | 2015-01-21 | 上海致维自动化控制有限公司 | There is the reactive power compensator of passive filtering function |
-
2014
- 2014-10-11 CN CN201410535115.0A patent/CN104300551B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200997531Y (en) * | 2006-12-26 | 2007-12-26 | 中冶南方工程技术有限公司 | Power-supply passive filter |
| CN200997530Y (en) * | 2006-12-26 | 2007-12-26 | 中冶南方工程技术有限公司 | Power-supply passive filter |
| CN101938130A (en) * | 2010-09-15 | 2011-01-05 | 哈尔滨工业大学 | High voltage filter and dynamic reactive power compensation control system combining PPF with TSC and control method thereof |
| CN204118752U (en) * | 2014-10-11 | 2015-01-21 | 上海致维自动化控制有限公司 | There is the reactive power compensator of passive filtering function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329542A (en) * | 2015-07-10 | 2017-01-11 | 美登思电气（上海）有限公司 | Control method and system for reactive power compensation device |
| CN107240919A (en) * | 2017-06-21 | 2017-10-10 | 上海广吉电气有限公司 | Intelligent active filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104300551B (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6143368B2 (en) | Submerged arc furnace reactive power compensation remote radio control system | |
| CN102545221B (en) | Full-active dynamic harmonic suppression and reactive compensation system used for direct current motor-driven drilling machines | |
| Ali et al. | A review of topological ordering based voltage rise mitigation methods for LV distribution networks with high levels of photovoltaic penetration | |
| CN204668964U (en) | A kind of photovoltaic inversion is boosted integrated generating main circuit topological structure | |
| EP2232666B1 (en) | Harmonic filter with integrated power factor correction | |
| CN105301520B (en) | Adjustable nonlinear load configures system | |
| CN105556779A (en) | Apparatus and method for providing power interface | |
| WO2012175332A1 (en) | Device for controlling the load of the phases of a three-phase energy network | |
| US9778068B2 (en) | Systems and methods for conditioning and controlling power usage | |
| CN104300551A (en) | Reactive power compensation device with passive filter function | |
| CN104617580B (en) | Resonant mode current limiting system and control method | |
| CN204118752U (en) | There is the reactive power compensator of passive filtering function | |
| JP2022548545A (en) | two-way distribution network | |
| CN204118747U (en) | Reactive power compensator | |
| CN204347495U (en) | Energy acquisition equipment | |
| CN102723724B (en) | A kind of novel static dynamic reactive generator device and method thereof | |
| CN102859824B (en) | For the apparatus and method of reactive power compensation | |
| WO2018199333A1 (en) | Power factor control system, phase modifying device, and active filter device | |
| WO2016139129A1 (en) | Adjustable speed drive system | |
| CN104300549A (en) | Reactive power compensation device | |
| CN203967754U (en) | Combined multi-channel passive filtration unit | |
| CN204391749U (en) | Resonant mode current limiting system | |
| CN201956687U (en) | Full-active dynamic harmonic suppression and reactive compensation system for direct current electric drilling machine | |
| CN204668953U (en) | A kind of Intelligent power saving system based on filtering harmonic wave | |
| CN106026131A (en) | Power quality control device and method in hydrometallurgy operation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |