CN201528206U - Harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device - Google Patents
Harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device Download PDFInfo
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- CN201528206U CN201528206U CN2009202449861U CN200920244986U CN201528206U CN 201528206 U CN201528206 U CN 201528206U CN 2009202449861 U CN2009202449861 U CN 2009202449861U CN 200920244986 U CN200920244986 U CN 200920244986U CN 201528206 U CN201528206 U CN 201528206U
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- dynamic reactive
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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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- 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
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Abstract
The utility model provides a harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device, including a controller, and a sampling current mutual inductor, a voltage mutual inductor, a protective current mutual inductor, a high voltage AC permanent magnetic synchronous change-over switch which are respectively connected with the controller; the controller comprises an MCU microprocessor control unit and a GPRS network communication unit; the GPRS network communication unit is provided with a communication interface; the MCU microprocessor control unit and the GPRS network communication unit are matched to perform dynamic compensation aiming at installing point voltage and the reactive power operation working condition; the high voltage AC permanent magnetic synchronous change-over switch also connects with a harmonic wave suppressed filtering reactor; the synchronous change-over switch is located on the front end of the filtering reactor and a parallel connection capacitor; and the filtering reactor connects with the parallel connection capacitor. The utility model solves the technical problem of harm of harmonic waves on the high voltage lines to an electrical network and the equipment in the actual operation process of the high voltage parallel connection capacitor reactive power compensation device; and has advantage of convenient maintenance.
Description
Technical field
The utility model relates to a kind of electric device, is specifically related to a kind of harmonic suppression type high pressure dynamic reactive autocompensation installation.
Background technology
Along with the growth of power distribution system load and the raising that power supply quality is required, to the also corresponding increase of demand of reactive power compensation.At present, China's distribution network var compensation carries out in distribution transformer low-pressure side (0.4kV side) usually, but the gross investment height, and can not compensate the idle of distribution transforming, distribution and high voltage load.In transformer station's centralized compensation pattern, whole no-power vacancy is bigger, and since season, daily load difference big, compensation wretched insufficiency during the peak.Therefore, it is very necessary carrying out reactive power compensation in high-tension distributing line.
China uses present some areas circuit high pressure reactive power compensation to install dispersedly on the line, and following deficiency is arranged:
1) existing reactive power compensator, inside does not dispose a certain proportion of reactor, can not overcome harmonic wave on the high-tension line to the harm of electrical network and equipment, in order to compensate the reactive power on the high-tension line, common way is the capacitor group to high-tension line suitable capacity in parallel.And if excessive harmonic current appears in the existence owing to harmonic source (as thyristor control appliance, arc furnace, roll mill etc.) on the high-tension line, then capacitor is owing to the influence that self reason very easily is subjected to harmonic current causes damage, even damages.In addition, capacitor also may interact with system's inductance and produce parallel resonance, and in case parallel resonance takes place, the harmonic current that has existed on the high-tension line also can further be amplified, thus give capacitor self and device switch other reach the equipment that links to each other with high-tension line and cause bigger infringement.
2) cost height: because all operations out of doors of each part, the desired class of insulation is higher than the indoor type components and parts, so the just big reliability of corresponding investment is not high: because components and parts are external, be subjected to the influence of environment bigger.
3) control mode is single only has single group switching can not the meticulous compensation of dynamic classification.
4) intelligent degree is not high, does not reach full-automatic type control capacitor switching, utilizes power too low, can not pass through wireless network GPRS remote transmission data.
Summary of the invention
The purpose of this utility model is to provide a kind of harmonic suppression type high pressure dynamic reactive autocompensation installation, solved background technology mesohigh shunt capacitor reactive power compensator and can not overcome harmonic wave on the high-tension line to the technical problem of electrical network and equipment harm in actual moving process.
Technical solution of the present utility model is:
A kind of harmonic suppression type high pressure dynamic reactive autocompensation installation; comprise controller; the sample rate current instrument transformer that is connected respectively with controller; voltage transformer; the protection type current transformer; high-voltage alternating permanent-magnet synchronous diverter switch; described controller comprises MCU MCU Microprocessor Control Unit and GPRS network communication unit; described GPRS network communication unit is provided with a communication interface; described MCU MCU Microprocessor Control Unit and GPRS network communication unit cooperate the dynamic compensation that can realize at mounting points voltage and idle operating condition
Its special character is: described high-voltage alternating permanent-magnet synchronous diverter switch also connects the filter reactor that a harmonic wave suppresses, and described synchronous diverter switch is positioned at filter reactor and shunt capacitor device front end, and described filter reactor connects a capacitor in parallel.
Above-mentioned protection type current transformer is mainly gathered condenser current, the capacitor for voltage protection overcurrent.
Above-mentioned fuse is a fuse switch.
Above-mentioned lightning arrester is a zinc oxide arrester.
Above-mentioned sample rate current instrument transformer is an Open Type Electric Current Mutual Inductor.
Above-mentioned controller, voltage transformer, protection type current transformer, high-voltage alternating permanent-magnet synchronous diverter switch, filter reactor, shunt capacitor all place in the casing.
Above-mentioned casing comprises a wall bushing, and described wall bushing is connected with voltage transformer in the casing with 10KVA, B, C parallel three phase again.
Above-mentioned casing is stainless steel or cold-rolled steel sheet casing.
Advantage of the present utility model is:
1] these series of products can possess harmonic restraining function, and the use of inner reactor realizes filtering and reactive power compensation dual-use function, and shoving when the limiting capacitance device drops into electrical network simultaneously effectively suppresses electrical network five times, seven times and the amplification of high order harmonic component.
2] provide multiple compensation control mode.The user can select only control mode for use at mounting points voltage and idle operating condition, reaches best saving energy and decreasing loss effect
3] device volume is little, install simply, and the reliability height, easy to maintenance.Software operation is simple, the display interface close friend.This device is applicable to 10kV, 6kV power network line.
4] device have to the operation of power networks data analyze, statistical function, can store nearest bimestrial integral point record and nearly 100 times switching record
5] device has realized that classification, multistage etc. perhaps the grade hold switching, makes high-pressure reactive compensation meticulousr
6] device adopts intelligent Control on Communication, can realize remote control, remote measurement and remote regulating by GPRS and wireless communication module mode.
Description of drawings
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model structural representation;
Drawing reference numeral explanation: 1-controller, 101-MCU MCU Microprocessor Control Unit, 102-GPRS network communication unit; the 103-communication interface, 2-sample rate current instrument transformer, 3-voltage transformer; 4-protection type current transformer; 5-high-voltage alternating permanent-magnet synchronous diverter switch, 6-fuse, 7-lightning arrester; the 8-casing; the 9-wall bushing, 10-filter reactor, 11-shunt capacitor.
Embodiment
Referring to Fig. 1; a kind of harmonic suppression type high pressure dynamic reactive autocompensation installation; comprise controller 1; the sample rate current instrument transformer 2 that is connected respectively with controller 1, voltage transformer 3, protection type current transformer 4, diverter switch 5 synchronously; its middle controller 1 comprises MCU MCU Microprocessor Control Unit 101 and GPRS network communication unit 102; described GPRS network communication unit 102 is provided with a communication interface 103, and described MCU MCU Microprocessor Control Unit 101 and GPRS network communication unit 102 cooperate the dynamic compensation that can realize at mounting points voltage and idle operating condition.MCU MCU Microprocessor Control Unit 101 is finished computing by digital signal processor TMS320F2812.Controller 1 is judged according to the real time data that collects electrical network, reasonably sends control command and gives high-voltage alternating permanent-magnet synchronous diverter switch 5, finishes the switching of capacitor, realizes the dynamic compensation at mounting points voltage and idle operating condition.Diverter switch 5 also connects the filter reactor 10 that a harmonic wave suppresses synchronously, and diverter switch 5 is positioned at protection filter reactor 10 and shunt capacitor 11 front ends synchronously, and filter reactor 10 also connects a capacitor 11 in parallel.Capacitor loop a certain proportion of reactor of connecting, the inrush phenomenon in the time of can effectively reducing capacitor and drop into has increased useful life of equipment, can suppress the amplification to the line harmonic electric current simultaneously, reduces the harmonic pollution to electrical network.Fall the disconnected device of molten formula package unit is carried out short-circuit protection, the fault if device is short-circuited, fuse switch fuses immediately, prevents that short trouble from working the mischief to device and circuit.Wherein lightning arrester 7 is a zinc oxide arrester.
Referring to Fig. 2, controller 1, voltage transformer 3, protection type current transformer 4, high-voltage alternating permanent-magnet synchronous diverter switch 5, all place in the casing 8.This device has adopted integrated hierarchy; protection type current transformer 4, voltage transformer 3, high-voltage alternating permanent-magnet synchronous diverter switch 5 etc. are placed a casing 8; both reduced the influence of external environment condition; improved reliability; reduced cost again; and make easy for installationization, thereby remedied the deficiency of existing reactive power compensator.Casing 8 comprises a wall bushing 9, and described wall bushing 9 is connected with 10KVA, B, C three.Wherein casing 8 is stainless steel or cold-rolled steel sheet casing.
This device course of work is as follows: the 10KV power network line enters in the casing 8 through wall bushing 9,2 pairs of three-phase lines of voltage transformer 3 in the casing 8 and sample rate current instrument transformer are sampled and sampled signal are sent into controller 1, calculate electrical energy parameters such as reactive power again by controller 1 software algorithm, controller 1 outputs control signals to the switching that control circuit comes control compensation capacitor group, make the power factor of three phase network circuit reach requirement, can realize dynamic compensation at mounting points voltage and idle operating condition.101 pairs of sampled signals of being sent here by sample circuit of MCU MCU Microprocessor Control Unit are analyzed, are calculated and determine whether to export control signal and give control circuit.The signal acquisition circuit of its middle controller 1 comprises compositions such as voltage transformer, current transformer, light lotus root.This circuit is given MCU MCU Microprocessor Control Unit 101 from outside acquired signal.MCU MCU Microprocessor Control Unit 101 is finished computing by digital signal processor (DSP) TMS320F2812.GPRS network communication unit 102 can be used for realizing carrying out wireless telecommunications with the INTERNET internet.
This device not only can carry out dynamic passive compensation, and can suppress mains by harmonics, thereby avoids or reduced the harm of harmonic wave to electrical network, equipment and compensation condenser self.Unit protection is multiple functional, and is safe and reliable to operation.
Claims (6)
1. harmonic suppression type high pressure dynamic reactive autocompensation installation, comprise controller (1), with sample rate current instrument transformer (2), voltage transformer (3), protection type current transformer (4), high-voltage alternating permanent-magnet synchronous diverter switch (5) that controller (1) is connected respectively, described high-voltage alternating permanent-magnet synchronous diverter switch (5) also is connected with filter reactor (10); Described controller (1) comprises MCU MCU Microprocessor Control Unit (101) and GPRS network communication unit (102), described GPRS network communication unit (102) is provided with a communication interface (103), described MCU MCU Microprocessor Control Unit (101) and GPRS network communication unit (102) cooperate the dynamic compensation that can realize at mounting points voltage and idle operating condition
It is characterized in that: described high-voltage alternating permanent-magnet synchronous diverter switch (5) also connects the filter reactor (10) that a harmonic wave suppresses, described high-voltage alternating permanent-magnet synchronous diverter switch (5) is positioned at filter reactor (10) and shunt capacitor (11) front end, and described filter reactor (10) also connects a capacitor in parallel (11).
2. according to the described harmonic suppression type high pressure of claim 1 dynamic reactive autocompensation installation, it is characterized in that: described fuse (6) is a fuse switch.
3. according to the described harmonic suppression type high pressure of claim 2 dynamic reactive autocompensation installation, it is characterized in that: described lightning arrester (7) is a zinc oxide arrester.
4. according to the described harmonic suppression type high pressure of claim 3 dynamic reactive autocompensation installation; it is characterized in that: described controller (1), voltage transformer (3), protection type current transformer (4), high-voltage alternating permanent-magnet synchronous diverter switch (5), filter reactor (10), shunt capacitor (11) all place in the casing (8).
5. according to the described harmonic suppression type high pressure of claim 4 dynamic reactive autocompensation installation, it is characterized in that: described casing (8) is stainless steel or cold-rolled steel sheet casing.
6. according to the described harmonic suppression type high pressure of claim 5 dynamic reactive autocompensation installation, it is characterized in that: described sample rate current instrument transformer (2) is an Open Type Electric Current Mutual Inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202449861U CN201528206U (en) | 2009-10-29 | 2009-10-29 | Harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202449861U CN201528206U (en) | 2009-10-29 | 2009-10-29 | Harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device |
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| Publication Number | Publication Date |
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| CN201528206U true CN201528206U (en) | 2010-07-14 |
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| CN2009202449861U Expired - Fee Related CN201528206U (en) | 2009-10-29 | 2009-10-29 | Harmonic wave suppressed type high voltage dynamic reactive power automatic compensation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055199A (en) * | 2010-12-31 | 2011-05-11 | 杭州佳和电气有限公司 | Reactive demand second order prediction algorithm suitable for automatic control of unequal capacity capacitor bank and application thereof |
| CN104449148A (en) * | 2014-12-26 | 2015-03-25 | 苏州菲斯特电力科技有限公司 | High-pressure dynamic reactive automatic compensation device |
| CN105400265A (en) * | 2015-11-20 | 2016-03-16 | 苏州菲斯特电力科技有限公司 | Novel, high-pressure, dynamitic, reactive and automatic compensation device |
| CN108832616A (en) * | 2018-05-08 | 2018-11-16 | 全球能源互联网研究院有限公司 | Sub-synchronous oscillation inhibits device and new energy transmission system |
-
2009
- 2009-10-29 CN CN2009202449861U patent/CN201528206U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055199A (en) * | 2010-12-31 | 2011-05-11 | 杭州佳和电气有限公司 | Reactive demand second order prediction algorithm suitable for automatic control of unequal capacity capacitor bank and application thereof |
| CN104449148A (en) * | 2014-12-26 | 2015-03-25 | 苏州菲斯特电力科技有限公司 | High-pressure dynamic reactive automatic compensation device |
| CN105400265A (en) * | 2015-11-20 | 2016-03-16 | 苏州菲斯特电力科技有限公司 | Novel, high-pressure, dynamitic, reactive and automatic compensation device |
| CN108832616A (en) * | 2018-05-08 | 2018-11-16 | 全球能源互联网研究院有限公司 | Sub-synchronous oscillation inhibits device and new energy transmission system |
| CN108832616B (en) * | 2018-05-08 | 2024-03-12 | 全球能源互联网研究院有限公司 | Subsynchronous oscillation suppression device and new energy power transmission system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20131029 |