CN205791549U - A kind of realization damages the Intelligent capacitor device exited in advance - Google Patents
A kind of realization damages the Intelligent capacitor device exited in advance Download PDFInfo
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- CN205791549U CN205791549U CN201620492217.3U CN201620492217U CN205791549U CN 205791549 U CN205791549 U CN 205791549U CN 201620492217 U CN201620492217 U CN 201620492217U CN 205791549 U CN205791549 U CN 205791549U
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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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Abstract
This utility model relates to technical field of power systems, disclose a kind of in power system used in low-pressure reactive compensation equipment and realize damage the Intelligent capacitor device exited in advance.Described Intelligent capacitor device includes capacitor (C1), fling-cut switch (QK1), reactor (L1), current transformer (TA1), voltage transformer (TV1), A/D converter, microprocessor and memorizer.Thus can judge whether capacitor is according to calculated loss tangent value to close on damage and change state, and control being opened or closed of capacitor series circuit according to judged result, such that it is able to realize when capacitor closes on damage, allow capacitor depart from main circuit, effectively reduce the work risk of capacitor.Additionally, described Intelligent capacitor device also has practical, move reliable, simple in construction and low cost and other advantages, it is simple to actual popularization and use.
Description
Technical field
This utility model relates to technical field of power systems, in particular it relates to a kind of in power system used in low-pressure reactive compensation equipment and realize damage the Intelligent capacitor device exited in advance.
Background technology
Capacitor used in low-pressure reactive compensation equipment in power system, it is typically with macromolecular compound as dielectric, it is exactly that the most aging (reason that condenser dielectric is aging has a lot owing to macromolecular compound exists common disadvantage, including production technology and environment etc.), after media ages, capacitor will be in dangerous running status, it is likely at any time damage, so the work of whole low-pressure reactive compensation equipment will be brought adverse effect, time serious, even can burn other device in low-pressure reactive compensation equipment.
For the problem that capacitor is the most aging, the capacitor manufacturer having at present solves this problem by burying temperature and resistance underground at capacitor internal, but in actual applications, the temperature of capacitor rises the absolute foundation can not damaged as capacitor, and capacitor can only be allowed to be continuing with after temperature lowers.Such this measure will make capacitor continue to work when fast damage, not only can affect the effect of the hoisting power factor that whole low-pressure reactive compensation equipment is played, capacitor also can be made to work under more dangerous situation, increase adverse effect when damaging.The most how to realize when capacitor closes on damage, allowing capacitor depart from main circuit is problem the most in the urgent need to address.
Utility model content
The problem existed for aforementioned existing capacitor, this utility model provides a kind of realization and damages the Intelligent capacitor device exited in advance, can judge whether capacitor is according to calculated loss tangent value to close on damage and change state, and control being opened or closed of capacitor series circuit according to judged result, such that it is able to realize when capacitor closes on damage, allow capacitor depart from main circuit, effectively reduce the work risk of capacitor.Additionally, described Intelligent capacitor device also has practical, move reliable, simple in construction and low cost and other advantages, it is simple to actual popularization and use.
The technical solution adopted in the utility model, it is provided that a kind of realization damages the Intelligent capacitor device exited, in advance including capacitor, fling-cut switch, reactor, current transformer, voltage transformer, A/D converter, microprocessor and memorizer；Described capacitor, described fling-cut switch and the series connection of described reactor, the primary side of described current transformer and the primary side of described voltage transformer are connected to one end of described reactor and close described capacitor, the secondary side of described current transformer and the secondary side of described voltage transformer connect the input of described A/D converter respectively, described A/D converter outfan connects described microprocessor, described microprocessor connects described memorizer, and the control output end of the most described microprocessor connects the controlled end of described fling-cut switch.
Optimizing, described realization is damaged in advance and is changed the Intelligent capacitor device exited and also include connecting respectively the combination in any of any one or they in the temperature sensor of described microprocessor, work indicating module and wireless transceiver.Optimizing further, described work indicating module includes audible-visual annunciator and/or LED light.Described wireless transceiver is the combination in any of any one or they in WiFi wireless transceiver, bluetooth wireless transceiver and ZigBee wireless transceiver.
Optimizing, described realization damages the chopper that the Intelligent capacitor device exited also includes connecting with described capacitor in advance.
Optimizing, described fling-cut switch is any one in A.C. contactor, reverse-blocking tetrode thyristor, combination switch and phase-selecting switch.Optimizing further, described combination switch is the parallel circuit structure being made up of bidirectional triode thyristor and catalyst, and wherein, the pole that controls of described bidirectional triode thyristor is the controlled end of described fling-cut switch.
Optimizing, described capacitor is low voltage power capacitor.
To sum up, a kind of realization provided by the utility model is used to damage the Intelligent capacitor device exited in advance, have the advantages that according to calculated loss tangent value, (1) can judge whether capacitor is in and close on damage and change state, and control being opened or closed of capacitor series circuit according to judged result, such that it is able to realize when capacitor closes on damage, allow capacitor depart from main circuit, effectively reduce the work risk of capacitor；(2) can be when ambient temperature be too high, allow capacitor depart from main circuit temporarily, and make capacitor again access main circuit after ambient temperature is normal, so can evade the too high adverse effect aging to condenser dielectric of ambient temperature, extend the service life of capacitor, take into account variation of ambient temperature simultaneously and electric capacity has been had the impact of work value, it is possible to provide the judgment accuracy to the distress condition of capacitor；(3) current duty can be indicated in real time, and alarm signal can be sent when judgement capacitor is in and closes on distress condition, so can report situations to attendant in time, strengthen practicality；(4) by using the parallel circuit structure being made up of bidirectional triode thyristor and catalyst as fling-cut switch, in time capacitor series circuit can be turned off or closes, ensure the reliability service of described Intelligent capacitor device；(5) described Intelligent capacitor device also has simple in construction low cost and other advantages, it is simple to actual popularization and use.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the electrical block diagram that the realization that this utility model provides damages the Intelligent capacitor device exited in advance.
Fig. 2 is the method for work flow chart that the realization that this utility model provides damages the Intelligent capacitor device exited in advance.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, the realization that describing this utility model in detail by way of example provides damages the Intelligent capacitor device exited in advance.At this it should be noted that be adapted to assist in for the explanation of these way of example and understand this utility model, but it is not intended that restriction of the present utility model.
Various technology described herein may be used for but is not limited to technical field of power systems, it is also possible to for other similar field.
The terms "and/or", it it is only a kind of incidence relation describing affiliated partner, three kinds of relations can be there are in expression, such as, A and/or B, can represent: individualism A, individualism B, there are tri-kinds of situations of A and B simultaneously, the terms "/and " it is to describe another kind of affiliated partner relation, two kinds of relations can be there are, such as in expression, A/ and B, can represent: individualism A, two kinds of situations of individualism A and B, additionally, character "/" herein, typicallys represent forward-backward correlation to liking a kind of "or" relation.
Embodiment one
Fig. 1 shows that the realization that this utility model provides damages the electrical block diagram of the Intelligent capacitor device exited in advance, and Fig. 2 shows that the realization that this utility model provides damages the method for work flow chart of the Intelligent capacitor device exited in advance.The described realization that the present embodiment provides damages the Intelligent capacitor device exited, in advance including capacitor C1, fling-cut switch QK1, reactor L1, current transformer TA1, voltage transformer TV1, A/D converter, microprocessor and memorizer；Described capacitor C1, described fling-cut switch QK1 and described reactor L1 series connection, the primary side of described current transformer TA1 and the primary side of described voltage transformer TV1 be connected to described reactor L1's and near one end of described capacitor C1, the secondary side of described current transformer TA1 and the secondary side of described voltage transformer TV1 connect the input of described A/D converter respectively, described A/D converter outfan connects described microprocessor, described microprocessor connects described memorizer, the control output end of the most described microprocessor connects the controlled end of described fling-cut switch QK1.
As Fig. 1 is to shown in 2, and in the circuit structure of described Intelligent capacitor device, described capacitor C1, described fling-cut switch QK1 and described reactor L1 are sequentially connected in series, constituting a series circuit, wherein, described capacitor C1 is for realizing the basic function of capacitor；Described fling-cut switch QK1 is for being opened or closed described series circuit under the control of described microprocessor；Described reactor L1 is used for eliminating DC current；Described current transformer TA1 gathers the instant current signal (being alternating current analogue signal) in described series circuit for utilizing electromagnetic induction principle；Described voltage transformer TV1 gathers the instant voltage signal (being alternating voltage analogue signal) in described series circuit for utilizing electromagnetic induction principle；Described A/D converter, for described instant current signal and described instant voltage signal are carried out analog digital conversion, obtains the instant current information of digitized and the instant information of voltage of digitized of correspondence；Described microprocessor is for calculating instant active-power P and instant reactive power Q (can calculate acquisition respectively according to the phase contrast of both signals and amplitude) according to the instant current information of described digitized and the instant information of voltage of digitized, then instant loss tangent value tand=P/Q is calculated, subsequently judge whether capacitor is according to calculated loss tangent value to close on damage and change state, switching cut-off signal or switching closure signal is sent to described fling-cut switch QK1 finally according to judged result, and then control being opened or closed of capacitor series circuit, it can be, but not limited to the ARM chip using model to be STM32F103RCT6；Described memorizer is used for storing such as software program, setup parameter (the first loss tolerance value and first environment temperature value the most described later) and history gathers information digital information, and it can be, but not limited to the FLASH memory (i.e. flash memory) using model to be W25Q64.Additionally should include DC source, for providing electric energy support for described microprocessor, described A/D converter and described memorizer etc..
As in figure 2 it is shown, the method for work that described realization damages the Intelligent capacitor device exited in advance can be, but not limited to comprise the steps: that S101. gathers instant current signal by current transformer, gather instant voltage signal by voltage transformer simultaneously；S102. respectively described instant current signal and described instant voltage signal are carried out analog digital conversion by A/D converter, obtain the instant current information of digitized and the instant information of voltage of digitized of correspondence；S103. microprocessor calculates instant active-power P and instant reactive power Q according to the instant current information of described digitized and the instant information of voltage of digitized, then calculates instant loss tangent value tand=P/Q；S104. whether instant loss tangent value tand described in microprocessor judges is less than the first loss tolerance value, during if it is determined that described instant loss tangent value tand is not less than described first loss tolerance value, then sends switching cut-off signal at output control terminal to fling-cut switch；S105. fling-cut switch disconnects series circuit according to described switching cut-off signal.In step S104, described first loss tolerance value can be, but not limited to as presetting or the maximum loss tolerance value of acquiescence, such as it is preset as 1%, when described instant loss tangent value tand is more than 1%, i.e. assert that described capacitor C1, already at closing on distress condition, now controls the disconnection of capacitor series circuit, allow capacitor depart from main circuit, realize pre-damage to exit such that it is able to effectively reduce the work risk of capacitor.Additionally, described Intelligent capacitor device also has practical, move reliable, simple in construction and low cost and other advantages, it is simple to actual popularization and use.
Optimizing, described realization is damaged in advance and is changed the Intelligent capacitor device exited and also include connecting respectively the combination in any of any one or they in the temperature sensor of described microprocessor, work indicating module and wireless transceiver.As it is shown in figure 1, described microprocessor can be made to obtain the instant ambient temperature value of described capacitor C1 local environment by described temperature sensor, in order to introduce the consideration to ambient temperature in the course of the work.The most as shown in Figure 2, after step S105 can also but be not limited to comprise the steps: that S106. obtains instant ambient temperature value by described temperature sensor, then by ambient temperature value instant described in microprocessor judges whether less than first environment temperature value, during if it is determined that described instant ambient temperature value is lost tolerance value less than described first environment temperature value and described instant loss tangent value tand less than described first, then send switching closure signal at output control terminal to fling-cut switch；S107. fling-cut switch closes series circuit according to described switching closure signal.In step s 106, described first environment temperature value can be, but not limited to as presetting or the room temperature value of acquiescence, such as 30 degrees Celsius.Therefore by aforementioned operation mode, can be when ambient temperature be too high, allow capacitor depart from main circuit (now can not make faiture alarm) temporarily, and make capacitor again access main circuit after ambient temperature is normal, so can evade the too high adverse effect aging to condenser dielectric of ambient temperature, extending the service life of capacitor, taken into account variation of ambient temperature has the impact of work value simultaneously on electric capacity, it is possible to provide the judgment accuracy to the distress condition of capacitor.Additionally, described work indicating module is for the duty of the presently described Intelligent capacitor device of instruction in real time, in order to carrying out early warning, it can be, but not limited to include audible-visual annunciator and/or LED light；Described wireless transceiver transmits the work state information of presently described Intelligent capacitor device for long distance wireless, so that remote maintenance personnel grasp the duty of described Intelligent capacitor device, it can be, but not limited to as any one in WiFi wireless transceiver, bluetooth wireless transceiver and ZigBee wireless transceiver or their combination in any.Therefore can also indicate current duty in real time, and alarm signal can be sent when judgement capacitor is in and closes on distress condition, so can report situations to attendant in time, strengthen practicality.
Optimizing, described realization damages circuit breaker Q F1 that the Intelligent capacitor device exited also includes connecting with described capacitor C1 in advance.As it is shown in figure 1, described circuit breaker Q F1 be connected to described reactor L1's and away from one end of described capacitor C1, by described circuit breaker Q F1, it is also possible to be opened or closed described series circuit manually, the personnel of maintaining easily safeguard.
Optimizing, described fling-cut switch QK1 can be, but not limited to as any one in A.C. contactor, reverse-blocking tetrode thyristor, combination switch and phase-selecting switch.As optimize further, as it is shown in figure 1, in the present embodiment, described combination switch is the parallel circuit structure being made up of with catalyst KM1 bidirectional triode thyristor T1, and wherein, the pole that controls of described bidirectional triode thyristor T1 is the controlled end of described fling-cut switch QK1.Thus in time in conjunction with the advantage of controllable silicon and catalyst capacitor series circuit can be turned off or closes, ensure the reliability service of described Intelligent capacitor device.
Optimizing, described capacitor C1 is low voltage power capacitor.Can make described Intelligent capacitor device be applicable to the power system device of below voltage 400V.
To sum up, the realization that the present embodiment is provided damages the Intelligent capacitor device exited in advance, have the advantages that according to calculated loss tangent value, (1) can judge whether capacitor is in and close on damage and change state, and control being opened or closed of capacitor series circuit according to judged result, such that it is able to realize when capacitor closes on damage, allow capacitor depart from main circuit, effectively reduce the work risk of capacitor；(2) can be when ambient temperature be too high, allow capacitor depart from main circuit temporarily, and make capacitor again access main circuit after ambient temperature is normal, so can evade the too high adverse effect aging to condenser dielectric of ambient temperature, extend the service life of capacitor, take into account variation of ambient temperature simultaneously and electric capacity has been had the impact of work value, it is possible to provide the judgment accuracy to the distress condition of capacitor；(3) current duty can be indicated in real time, and alarm signal can be sent when judgement capacitor is in and closes on distress condition, so can report situations to attendant in time, strengthen practicality；(4) by using the parallel circuit structure being made up of bidirectional triode thyristor and catalyst as fling-cut switch, in time capacitor series circuit can be turned off or closes, ensure the reliability service of described Intelligent capacitor device；(5) described Intelligent capacitor device also has simple in construction low cost and other advantages, it is simple to actual popularization and use.
As it has been described above, this utility model can preferably be realized.For a person skilled in the art, according to teaching of the present utility model, design the realization of multi-form and damage the Intelligent capacitor device exited in advance and be not required to performing creative labour.In the case of without departing from principle of the present utility model and spirit, these embodiments are changed, revise, replace, integrate and modification still falls within protection domain of the present utility model.
Claims (8)
1. a realization damages the Intelligent capacitor device exited in advance, it is characterized in that, including capacitor (C1), fling-cut switch (QK1), reactor (L1), current transformer (TA1), voltage transformer (TV1), A/D converter, microprocessor and memorizer；
Described capacitor (C1), described fling-cut switch (QK1) and described reactor (L1) series connection, the primary side of described current transformer (TA1) and the primary side of described voltage transformer (TV1) are connected to one end of described reactor (L1) and close described capacitor (C1), the secondary side of described current transformer (TA1) and the secondary side of described voltage transformer (TV1) connect the input of described A/D converter respectively, described A/D converter outfan connects described microprocessor, described microprocessor connects described memorizer, the control output end of the most described microprocessor connects the controlled end of described fling-cut switch (QK1).
A kind of realization the most as claimed in claim 1 damages the Intelligent capacitor device exited in advance, it is characterized in that, described realization is damaged in advance and is changed the Intelligent capacitor device exited and also include connecting respectively the combination in any of any one or they in the temperature sensor of described microprocessor, work indicating module and wireless transceiver.
A kind of realization the most as claimed in claim 2 damages the Intelligent capacitor device exited in advance, it is characterised in that described work indicating module includes audible-visual annunciator and/or LED light.
A kind of realization the most as claimed in claim 2 damages the Intelligent capacitor device exited in advance, it is characterised in that described wireless transceiver is the combination in any of any one or they in WiFi wireless transceiver, bluetooth wireless transceiver and ZigBee wireless transceiver.
A kind of realization the most as claimed in claim 1 damages the Intelligent capacitor device exited in advance, it is characterised in that described realization damages the chopper (QF1) that the Intelligent capacitor device exited also includes connecting with described capacitor (C1) in advance.
A kind of realization the most as claimed in claim 1 damages the Intelligent capacitor device exited in advance, it is characterised in that described fling-cut switch (QK1) is any one in A.C. contactor, reverse-blocking tetrode thyristor, combination switch and phase-selecting switch.
A kind of realization the most as claimed in claim 6 damages the Intelligent capacitor device exited in advance, it is characterized in that, described combination switch is the parallel circuit structure being made up of bidirectional triode thyristor (T1) and catalyst (KM1), wherein, the control pole of described bidirectional triode thyristor (T1) is the controlled end of described fling-cut switch (QK1).
A kind of realization the most as claimed in claim 1 damages the Intelligent capacitor device exited in advance, it is characterised in that described capacitor (C1) is low voltage power capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620492217.3U CN205791549U (en) | 2016-05-26 | 2016-05-26 | A kind of realization damages the Intelligent capacitor device exited in advance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620492217.3U CN205791549U (en) | 2016-05-26 | 2016-05-26 | A kind of realization damages the Intelligent capacitor device exited in advance |
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| CN205791549U true CN205791549U (en) | 2016-12-07 |
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| CN201620492217.3U Expired - Fee Related CN205791549U (en) | 2016-05-26 | 2016-05-26 | A kind of realization damages the Intelligent capacitor device exited in advance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811436A (en) * | 2016-05-26 | 2016-07-27 | 成都星宇节能技术股份有限公司 | Intelligent capacitor device realizing pre-damage exit and working method thereof |
-
2016
- 2016-05-26 CN CN201620492217.3U patent/CN205791549U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811436A (en) * | 2016-05-26 | 2016-07-27 | 成都星宇节能技术股份有限公司 | Intelligent capacitor device realizing pre-damage exit and working method thereof |
| CN105811436B (en) * | 2016-05-26 | 2018-10-30 | 成都星宇节能技术股份有限公司 | A kind of realize damages the intelligent capacitor device exited and its working method in advance |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 International Exhibition Trade Center, 2, Pioneer Road, hi tech Zone, Sichuan, Chengdu, 7F Patentee after: Chengdu Xingyu Rongke Power Electronics Co.,Ltd. Address before: 610000 International Exhibition Trade Center, 2, Pioneer Road, hi tech Zone, Sichuan, Chengdu, 7F Patentee before: CHENGDU XINGYU ENERGY-SAVING TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 |