CN201927999U - Thyristor reactive compensation phase loss protection system - Google Patents
Thyristor reactive compensation phase loss protection system Download PDFInfo
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- CN201927999U CN201927999U CN2010206538890U CN201020653889U CN201927999U CN 201927999 U CN201927999 U CN 201927999U CN 2010206538890 U CN2010206538890 U CN 2010206538890U CN 201020653889 U CN201020653889 U CN 201020653889U CN 201927999 U CN201927999 U CN 201927999U
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- thyristor
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- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- VAYOSLLFUXYJDT-RDTXWAMCSA-N Lysergic acid diethylamide Chemical class C1=CC(C=2[C@H](N(C)C[C@@H](C=2)C(=O)N(CC)CC)C2)=C3C2=CNC3=C1 VAYOSLLFUXYJDT-RDTXWAMCSA-N 0.000 description 2
- 238000005760 Tripper reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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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
The utility model relates to the field of reactive compensation, and discloses a thyristor reactive compensation phase loss protection system, which solves the problem that the traditional thyristor reactive compensation phase loss protection system can not protect the phase loss of a certain branch circuit, causing various dangers. The thyristor reactive compensation phase loss protection system comprises a compensation controller, a thyristor unit and N reactive compensation branch circuits (N is an integral number larger than or equal to 1), wherein the thyristor unit is connected with the N reactive compensation branch circuits; each branch circuit comprises a three-phase total compensation circuit, and a circuit breaking device, a reactor and a capacitor bank are serially connected between every two phase wires of the three-phase total compensation circuit in sequence; the circuit breaking device is provided with a normally closed auxiliary contact, and the normally closed auxiliary contacts of the circuit breaking devices contained in the three-phase total compensation circuits of different reactive compensation branch circuits are in series connection in sequence; and the two leading-out end after series connection are respectively connected with the signal output end of the compensation controller and the signal receiving end of the thyristor unit. The thyristor reactive compensation phase loss protection system provided by the utility model is suitable for reactive compensation to a power grid.
Description
Technical field
The utility model relates to the reactive power compensation field, relates to a kind of thyristor reactive compensation open-phase protection system specifically.
Background technology
Reactive power compensation is called for short reactive power compensation, plays the effect of the power factor that improves electrical network in the electronic power system, reduces the loss of supply transformer and conveying circuit, improves power supplying efficiency, improves the power supply environment.So reactive power compensator has indispensable status in power supply system, reasonably select reactive power compensator, can accomplish to reduce to greatest extent the consumption of network, power grid quality is improved.Especially the thyristor reactive compensation device has obtained extensive use with its superior performance; it is to adopt the product brake tube that the mode of the dynamic switching of capacitor is carried out reactive power compensation to electrical network; and the switching signal is provided by idle or power factor are monitored in real time by the compensation controller; for reactive power compensator is protected; in system, all designed tripper (as: fuse, fast acting fuse etc.), so just formed protection system at the thyristor reactive compensation device.As shown in Figure 1, this protection system comprises: compensation controller, thyristor unit, 3 reactive power compensation branch roads; The compensation controller is connected with the thyristor unit; Described thyristor unit connects 3 reactive power compensation branch roads; Each bar in described 3 reactive power compensation branch roads includes three-phase and mends circuit altogether, and what described three-phase was mended circuit altogether is in series with tripper, reactor and capacitor group in twos successively between the phase line, and in Fig. 1, each bar reactive power compensation branch road all has U, V, W three-phase; Article one, route tripper FU11-FU13, reactor L11-L13 and 3 capacitor groups formations are propped up in reactive power compensation, route tripper FU21-FU23, reactor L21-L23 are propped up in the second reactive power compensation and 3 capacitor groups constitute, and route tripper FU31-FU33, reactor L31-L33 and 3 capacitor groups formations are propped up in the 3rd reactive power compensation.As can be seen from Figure 1, the a certain short trouble that occurs mutually in a certain reactive power compensation branch road in this system, tripper disconnects immediately, the capacitor group of this phase can't come into operation again so, and all the other two-phase capacitor groups of this branch road continue to come into operation, just may cause system voltage or electric current three-phase imbalance in this case, produce multiple harm:
1. the tri-phase iron core reactor phase-deficient operation of connecting in the reactive power compensator, generation is uttered long and high-pitched sounds, simultaneously because overheated and shorten the life-span, add lossy;
2. influence all the other equipment and normally move, move under asymmetrical state such as electric rotating machine, can make rotor produce supplementary load loss and heating, thereby cause motor integral body or local heating, the opposing magnetic field produces additional moment and can make motor appearance vibration in addition;
3. reduce the utilance of power system capacity, increase the grid loss, reduce the electrical network energy transmission efficiency;
4. also can cause with the negative sequence component to be the kinds of protect generation misoperation of starting component, directly threaten the safe operation of electrical network.
To sum up, though there is the compensation controller can detect the situation of whole system in traditional thyristor reactive compensation protection system, be not possess detection and defencive function for the phase shortage among a small circle that a certain branch road took place, easily produce various harm.
The utility model content
Technical problem to be solved in the utility model is: propose a kind of thyristor reactive compensation open-phase protection system, solving traditional thyristor reactive compensation protection system can not protect at the phase shortage that certain branch road takes place, and causes producing the problem of various harm.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: thyristor reactive compensation open-phase protection system comprises compensation controller, thyristor unit, N bar reactive power compensation branch road, N 〉=1 and be integer; Described thyristor unit connects N bar reactive power compensation branch road; Each bar in the described N bar reactive power compensation branch road includes three-phase and mends circuit altogether, and what described three-phase was mended circuit altogether is in series with tripper, reactor and capacitor group in twos between the phase line; Described tripper possesses normally closed auxiliary contact, and the normally closed auxiliary contact of the tripper that the three-phase in each bar reactive power compensation branch road is mended circuit altogether and comprised is connected successively; And two exits after the series connection connect the signal output part that compensates controller and the signal receiving end of thyristor unit respectively.
Described tripper is a fast acting fuse.
The beneficial effects of the utility model are: adopt the tripper that possesses normally closed auxiliary contact, and with the series connection of the normally closed auxiliary contact of all trippers in the branch road, exit after the series connection is connected with the thyristor unit with the compensation controller respectively, when certain branch road a certain short trouble occurs mutually, all capacitor groups of this branch road are all cut, this branch road will no longer come into operation before fixing a breakdown, and avoid the generation of various harm.
Description of drawings
Fig. 1 is the structural representation of traditional thyristor reactive compensation unit protection system;
Fig. 2 is the structural representation of the thyristor reactive compensation open-phase protection system of the utility model embodiment.
Among the figure, 1 is normally closed auxiliary contact, and C1, C2, C3 are for compensating the signal output part of controller, and 611,621,631 is the signal receiving end of thyristor unit.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
The utility model can not be protected at the phase shortage that certain branch road takes place in order to solve traditional thyristor reactive compensation protection system, and causes producing the problem of various harm, discloses a kind of thyristor reactive compensation open-phase protection system.With respect to conventional art, its improvement is: on the type selecting of tripper, selection possesses the tripper of normally closed auxiliary contact, and the normally closed auxiliary contact of all trippers that the three-phase in each branch road is mended circuit altogether and comprised is together in series, two exits after the series connection are connected the signal output part that compensate controller and the signal receiving end of thyristor unit respectively, and promptly the series circuit of the normally closed auxiliary contact of tripper will influence the signal and communication that compensates between controller and the thyristor unit.
When a certain in certain branch road is short-circuited mutually, tripper disconnects rapidly, its normally closed auxiliary contact also disconnects, and the circuit that all normally closed auxiliary contacts of this branch road are together in series also is in off-state, compensate promptly that the control loop at this branch road also disconnects between controller and the thyristor unit, therefore, even the compensation controller has sent the input signal, the thyristor unit of this branch road does not receive yet, this branch road also just can't carry out switching, only after the staff got rid of the fault of this branch road, this branch road could continue to come into operation.
Embodiment:
As shown in Figure 2, the thyristor reactive compensation open-phase protection system in this example comprises compensation controller, thyristor unit, 3 reactive power compensation branch roads; Described thyristor unit connects 3 reactive power compensation branch roads; Each bar in described 3 reactive power compensation branch roads includes three-phase and mends circuit altogether, and what described three-phase was mended circuit altogether is in series with tripper, reactor and capacitor group in twos successively between the phase line; Each bar reactive power compensation branch road all has U, V, W three-phase; Article one, route tripper FU11-FU13, reactor L11-L13 and 3 capacitor groups formations are propped up in reactive power compensation, route tripper FU21-FU23, reactor L21-L23 are propped up in the second reactive power compensation and 3 capacitor groups constitute, and route tripper FU31-FU33, reactor L31-L33 and 3 capacitor groups formations are propped up in the 3rd reactive power compensation; Tripper in this example is selected the fast acting fuse that possesses normally closed auxiliary contact 1 for use and since fast acting fuse highly sensitive, movement response is rapid, is highly suitable for reactive power compensation.
The normally closed auxiliary contact 1 of all fast acting fuses that the three-phase in each bar branch road is mended circuit altogether and comprised is connected; And two exits (two ends) after will connecting connect the signal receiving end of the signal output part that compensates controller and thyristor unit respectively to form control loop, in Fig. 2 as can be seen, article one, two exits after the normally closed auxiliary contact 1 of three fast acting fuses in the reactive power compensation branch road is connected connect the compensation signal output part C1 of controller and the signal receiving end 611 of thyristor unit respectively, form control loop at article one reactive power compensation branch road with this; Two exits after the normally closed auxiliary contact 1 of three fast acting fuses in the second reactive power compensation branch road is connected connect the compensation signal output part C2 of controller and the signal receiving end 621 of thyristor unit respectively, form control loop at second reactive power compensation branch road with this; Article three, two exits after the normally closed auxiliary contact 1 of three fast acting fuses in the reactive power compensation branch road is connected connect the compensation signal output part C3 of controller and the signal receiving end 631 of thyristor unit respectively, form control loop at the 3rd reactive power compensation branch road with this.
By above-mentioned means, when a certain in a certain branch road short trouble occurs mutually, this fast acting fuse in mutually disconnects rapidly, its corresponding normally closed auxiliary contact 1 also disconnects, the circuit that is in series by the normally closed auxiliary contact 1 of three fast acting fuses of this branch road also is in off-state, then also disconnects at the compensation controller of this branch road and the control loop of thyristor unit.So, even the compensation controller has sent the input signal, the thyristor unit of this branch road but can't received signal, and this branch road also just can't carry out switching, the compensation controller will send the input signal to next branch road that configures, and make that the capacitor group in next branch road that configures puts into operation.Has only the staff of working as on site fault clearing; reconnected control loop; the compensation controller could send the input signal to this branch road; capacitor group in this branch road just can put into operation; therefore; can solve because of the uneven problem that causes voltage, current imbalance of capacitor group three-phase input, also avoid its a series of harm that bring, effectively protect power grid security.
Claims (2)
1. thyristor reactive compensation open-phase protection system comprises compensation controller, thyristor unit, N bar reactive power compensation branch road, N 〉=1 and be integer; Described thyristor unit connects N bar reactive power compensation branch road; Each bar in the described N bar reactive power compensation branch road includes three-phase and mends circuit altogether, what described three-phase was mended circuit altogether is in series with tripper, reactor and capacitor group in twos between the phase line, it is characterized in that: described tripper possesses normally closed auxiliary contact, and the normally closed auxiliary contact of the tripper that the three-phase in each bar reactive power compensation branch road is mended circuit altogether and comprised is connected successively; And two exits after the series connection connect the signal output part that compensates controller and the signal receiving end of thyristor unit respectively.
2. thyristor reactive compensation open-phase protection as claimed in claim 1 system, it is characterized in that: described tripper is a fast acting fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206538890U CN201927999U (en) | 2010-12-11 | 2010-12-11 | Thyristor reactive compensation phase loss protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206538890U CN201927999U (en) | 2010-12-11 | 2010-12-11 | Thyristor reactive compensation phase loss protection system |
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| Publication Number | Publication Date |
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| CN201927999U true CN201927999U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206538890U Expired - Lifetime CN201927999U (en) | 2010-12-11 | 2010-12-11 | Thyristor reactive compensation phase loss protection system |
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| Country | Link |
|---|---|
| CN (1) | CN201927999U (en) |
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2010
- 2010-12-11 CN CN2010206538890U patent/CN201927999U/en not_active Expired - Lifetime
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Thyristor reactive compensation phase loss protection system Effective date of registration: 20131224 Granted publication date: 20110810 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Chengjia Electric Co., Ltd. Registration number: 2013990001021 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 614000 No. 3, west section of Lego Road, Leshan hi tech Development Zone, Sichuan Patentee after: Leshan Shengjia Electric Co., Ltd. Address before: 614000 No. 3, west section of Lego Road, Leshan hi tech Development Zone, Sichuan Patentee before: Leshan Chengjia Electric Co., Ltd. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160309 Granted publication date: 20110810 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2013990001021 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Thyristor reactive compensation phase loss protection system Effective date of registration: 20160309 Granted publication date: 20110810 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2016990000187 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20160309 Registration number: 2013990001021 Pledgor after: Leshan Shengjia Electric Co., Ltd. Pledgor before: Leshan Chengjia Electric Co., Ltd. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170718 Granted publication date: 20110810 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2016990000187 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Thyristor reactive compensation phase loss protection system Effective date of registration: 20170801 Granted publication date: 20110810 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2017510000043 |
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