CN101882790A - Capacitor configuration method and system - Google Patents
Capacitor configuration method and system Download PDFInfo
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- CN101882790A CN101882790A CN 201010223619 CN201010223619A CN101882790A CN 101882790 A CN101882790 A CN 101882790A CN 201010223619 CN201010223619 CN 201010223619 CN 201010223619 A CN201010223619 A CN 201010223619A CN 101882790 A CN101882790 A CN 101882790A
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- 230000001186 cumulative effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
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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 invention discloses a capacitor configuration method which comprises the following steps that: A. a main capacitor group is configured: A1. N main capacitors are serially connected to form a series branch circuit, wherein N is an even number which is more than or equal to 2; A2. a plurality of series branch circuits are connected parallelly to form the main capacitor group; B. a group of primary auxiliary capacitor group is configured: B1. N primary auxiliary capacitors are serially connected to form the primary auxiliary capacitor group; and C. the main capacitor group is parallelly connected with the primary auxiliary capacitor group. The invention provides the capacitor configuration method and a system for reducing the number of general capacitors, thereby reducing the total volume and the weight of the capacitor groups, reducing the adjusted step length when in reactive power compensation, realizing precise and reactive power compensation, and reducing the load of a power supply system, a voltage regulator and a middle transformer.
Description
Technical field
The present invention relates to the high voltage and insulation technology field, be specifically related to a kind of capacitor configuration method and system.
Background technology
The short-circuit method heating is a kind of effective converter transformer field drying processing method, can shorten the cycle that field drying is handled greatly, and improves drying effect.In the short-circuit method heating process, need the using compensation capacitor that the idle of converter transformer consumption is provided.The configuration of capacitor group and regulative mode are of paramount importance links in the design of capacitor group.From reducing capacitor group cumulative volume and weight, the convenient angle of installing and transporting, wish that the platform number of total capacitance device is the least possible, promptly the capacity of single capacitor is big as far as possible.But the angle of degree of regulation during from reactive power compensation wishes that the capacity of single capacitor is as far as possible little, so that the adjusting step-length when reducing reactive power compensation realizes accurate reactive power compensation, reduces the load of power-supply system and voltage regulator, intermediate transformer.
Based on the problems referred to above, how a kind of capacitor configuration method and system are provided, how at the platform number that reduces the total capacitance device, and make the capacity of single capacitor balanced between as far as possible little, be those skilled in the art's technical issues that need to address.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is to provide a kind of capacitor configuration method and system, be used to reduce the platform number of total capacitance device, capacitor group cumulative volume and weight have been reduced, adjusting step-length in the time of reducing reactive power compensation again, realize accurate reactive power compensation, reduce the load of power-supply system and voltage regulator, intermediate transformer.
Specifically, the invention provides a kind of capacitor configuration method, said method comprising the steps of:
A, configuration main capacitor bank:
After A1, the series connection of N platform main capacitor, form a series arm; Wherein, N is greater than or equal to 2 even number;
A2, a plurality of described series arm are parallel with one another, form main capacitor bank;
B, one group of one-level auxiliary capacitor group of configuration:
After B1, the series connection of N platform one-level auxiliary capacitor, form one group of one-level auxiliary capacitor group;
C, described main capacitor bank are in parallel with described one-level auxiliary capacitor group.
Preferably, described one-level auxiliary capacitor is 1/2 of a described main capacitor capacity.
Preferably, the mid point of all series arms in the described main capacitor bank links to each other with the series arm mid point of described one-level auxiliary capacitor group.
Preferably, described method also comprises:
D, one group of secondary auxiliary capacitor group of configuration:
After D1, the series connection of N platform secondary auxiliary capacitor, form one group of secondary auxiliary capacitor group;
E, described main capacitor bank are in parallel with described secondary auxiliary capacitor.
Preferably, described secondary auxiliary capacitor is 1/4 of a described main capacitor capacity.
Preferably, the mid point of all series arms in the described main capacitor bank, the series arm mid point of described one-level auxiliary capacitor group, and the series arm mid point of described secondary auxiliary capacitor all links to each other.
The present invention also provides a kind of capacitor arrangements system, and described system comprises:
Main capacitor bank comprises a plurality of described series arm parallel with one another; Each series arm comprises the N platform main capacitor of mutual series connection;
One group of one-level auxiliary capacitor group comprises a branch road by the series connection of N platform one-level auxiliary capacitor;
Described main capacitor bank is in parallel with described one-level auxiliary capacitor group.
Preferably, described one-level auxiliary capacitor is 1/2 of a described main capacitor capacity.
Preferably, described system also comprises:
With described main capacitor bank and the equal one group of secondary auxiliary capacitor group in parallel of described one-level auxiliary capacitor group;
Described secondary auxiliary capacitor group comprises a branch road by the series connection of N platform secondary auxiliary capacitor.
Preferably, the mid point of all series arms in the described main capacitor bank links to each other with the series arm mid point of described one-level auxiliary capacitor group;
Or, the mid point of all series arms in the described main capacitor bank, the series arm mid point of described one-level auxiliary capacitor group, and the series arm mid point of described secondary auxiliary capacitor group all links to each other.
The described capacitor configuration method of the embodiment of the invention is owing to disposed main capacitor bank and one group of one-level auxiliary capacitor group.Main capacitor in the main capacitor bank is a large value capacitor, has reduced the platform number of total capacitance device, has reduced capacitor group cumulative volume and weight, is convenient to install and transportation, has improved applicability at the scene.One-level auxiliary capacitor group can be passed through the one-level auxiliary capacitor, and the adjusting step-length when having reduced reactive power compensation realizes accurate reactive power compensation, reduces the load of power-supply system and voltage regulator, intermediate transformer.
Description of drawings
Fig. 1 is the capacitor configuration method first embodiment flow chart of the present invention;
Fig. 2 is the capacitor configuration method second embodiment flow chart of the present invention;
Fig. 3 is capacitor configuration method the 3rd an embodiment flow chart of the present invention;
Fig. 4 is capacitor configuration method the 4th an embodiment flow chart of the present invention;
Fig. 5 is the capacitor arrangements first example structure figure of system of the present invention;
Fig. 6 is the capacitor arrangements second example structure figure of system of the present invention;
Fig. 7 is capacitor arrangements the 3rd example structure figure of system of the present invention;
Fig. 8 is capacitor arrangements the 4th example structure figure of system of the present invention.
Embodiment
The invention provides a kind of capacitor configuration method and system, be used to reduce the platform number of total capacitance device, reduced capacitor group cumulative volume and weight, the adjusting step-length in the time of reducing reactive power compensation again, realize accurate reactive power compensation, reduce the load of power-supply system and voltage regulator, intermediate transformer.
For the ease of the understanding of those skilled in the art, be elaborated below in conjunction with concrete accompanying drawing to capacitor configuration method of the present invention and system.
Referring to Fig. 1, this figure is the capacitor configuration method first embodiment flow chart of the present invention.
The described capacitor configuration method of first embodiment of the invention may further comprise the steps:
S100, configuration main capacitor bank.
Described step S100 specifically can realize by following steps.
After S110, the series connection of N platform main capacitor, form a series arm.
Wherein, N is greater than or equal to 2 even number.
S120, a plurality of described series arm are parallel with one another, form main capacitor bank.
In the main capacitor bank, main capacitor can be the large value capacitor of separate unit capacity S, and as required, also, the capacitors count of each series arm is N after going here and there earlier.
Size restrictions when the definite and test voltage of each series arm electric capacity quantity N and transportation is relevant.
Corresponding to short-circuit method heating, for bearing test voltage, and the control transportation clearance, each series arm is 6 to 8 usually.
When reactive power compensation is regulated, can serve as the basic unit that regulates with a described series arm.Regulate step-length and be specially N*S.
S200, one group of one-level auxiliary capacitor group of configuration.
Described step S200 specifically can realize by following steps.
After S210, the series connection of N platform one-level auxiliary capacitor, form one group of one-level auxiliary capacitor group.
When reactive power compensation is regulated, can serve as the basic unit that regulates with one-level auxiliary capacitor series arm, regulate step-length and be reduced to N* one-level auxiliary capacitor capacity.One-level auxiliary capacitor capacity can be 1/2 of described main capacitor capacity, and Ci Shi adjusting step-length is reduced to N*S/2 so.
S300, described main capacitor bank are in parallel with described one-level auxiliary capacitor group.
Because the main capacitor that the described capacitor configuration method of first embodiment of the invention adopts is a large value capacitor, has reduced the platform number of total capacitance device, has reduced capacitor group cumulative volume and weight, be convenient to install and transportation, improved applicability at the scene.
The described capacitor configuration method of first embodiment of the invention also adopts one-level auxiliary capacitor group, can pass through the one-level auxiliary capacitor, adjusting step-length when having reduced reactive power compensation realizes accurate reactive power compensation, reduces the load of power-supply system and voltage regulator, intermediate transformer.
Referring to Fig. 2, this figure is the capacitor configuration method second embodiment flow chart of the present invention.
The difference of relative first embodiment of the described capacitor configuration method of second embodiment of the invention is, the step that the mid point of all series arms behind described step S300 in the described main capacitor bank of increase links to each other with the series arm mid point of described one-level auxiliary capacitor group.
The described capacitor configuration method of second embodiment of the invention may further comprise the steps:
S100, configuration main capacitor bank.
Described step S100 specifically can realize by following steps.
After S110, the series connection of N platform main capacitor, form a series arm.
Wherein, N is greater than or equal to 2 even number.
S120, a plurality of described series arm are parallel with one another, form main capacitor bank.
Equally, in described main capacitor bank, main capacitor can be the large value capacitor of separate unit capacity S, and as required, also, the capacitors count of each series arm is N after going here and there earlier.
Size restrictions when the definite and test voltage of each series arm electric capacity quantity N and transportation is relevant.
Corresponding to short-circuit method heating, for bearing test voltage, and the control transportation clearance, each series arm is 6 to 8 usually.
When reactive power compensation is regulated, can serve as the basic unit that regulates with a described series arm.Regulate step-length and be specially N*S.
S200, one group of one-level auxiliary capacitor group of configuration.
Described step S200 specifically can realize by following steps.
After S210, the series connection of N platform one-level auxiliary capacitor, form one group of one-level auxiliary capacitor group.
The rated voltage of separate unit one-level auxiliary capacitor is identical with the rated voltage of main capacitor.
When reactive power compensation is regulated, can serve as the basic unit that regulates with one-level auxiliary capacitor series arm, regulate step-length and be reduced to N* one-level auxiliary capacitor capacity.One-level auxiliary capacitor capacity can be 1/2 of described main capacitor capacity, and Ci Shi adjusting step-length is reduced to N*S/2 so.
S300, described main capacitor bank are in parallel with described one-level auxiliary capacitor group.
The mid point of all series arms in S400, the described main capacitor bank links to each other with the series arm mid point of described one-level auxiliary capacitor group.
The described capacitor configuration method of second embodiment of the invention can further reduce to regulate step-length by the mode of half branch road parallel connection (being step S400).
Referring to Fig. 3, this figure is capacitor configuration method the 3rd an embodiment flow chart of the present invention.
The difference of relative first embodiment of the described capacitor configuration method of third embodiment of the invention is, increases the step of one group of secondary auxiliary capacitor group of configuration behind described step S300.
The described capacitor configuration method of third embodiment of the invention may further comprise the steps:
S100, configuration main capacitor bank.
Described step S100 specifically can realize by following steps.
After S110, the series connection of N platform main capacitor, form a series arm.
Wherein, N is greater than or equal to 2 even number.
S120, a plurality of described series arm are parallel with one another, form main capacitor bank.
Equally, in described main capacitor bank, main capacitor can be the large value capacitor of separate unit capacity S, and as required, also, the capacitors count of each series arm is N after going here and there earlier.
Size restrictions when the definite and test voltage of each series arm electric capacity quantity N and transportation is relevant.
When reactive power compensation is regulated, can serve as the basic unit that regulates with a described series arm.Regulate step-length and be specially N*S.
S200, one group of one-level auxiliary capacitor group of configuration.
Described step S200 specifically can realize by following steps.
After S210, the series connection of N platform one-level auxiliary capacitor, form one group of one-level auxiliary capacitor group.
The rated voltage of separate unit one-level auxiliary capacitor is identical with the rated voltage of main capacitor.
When reactive power compensation is regulated, can serve as the basic unit that regulates with one-level auxiliary capacitor series arm, regulate step-length and be reduced to N* one-level auxiliary capacitor capacity.One-level auxiliary capacitor capacity can be 1/2 of described main capacitor capacity, and Ci Shi adjusting step-length is reduced to N*S/2 so.
S300, described main capacitor bank are in parallel with described one-level auxiliary capacitor group.
S500, one group of secondary auxiliary capacitor group of configuration.
Described step S500 specifically can realize by following steps.
After S510, the series connection of N platform secondary auxiliary capacitor, form one group of secondary auxiliary capacitor group.
The rated voltage of separate unit secondary auxiliary capacitor is identical with the rated voltage of main capacitor.
S600, described main capacitor bank are in parallel with described secondary auxiliary capacitor.
Realize that described main capacitor bank and described one-level auxiliary capacitor group and one group of secondary auxiliary capacitor group are all in parallel.
At this moment, serve as the basic unit that regulates with secondary auxiliary capacitor series arm when reactive power compensation is regulated, the adjusting step-length can be reduced to the capacity of N* secondary auxiliary capacitor.Secondary auxiliary capacitor capacity can be 1/4 of described main capacitor capacity, and Ci Shi adjusting step-length is reduced to N*S/4 so.
Referring to Fig. 4, this figure is capacitor configuration method the 4th an embodiment flow chart of the present invention.
The difference of relative the 3rd embodiment of the described capacitor configuration method of fourth embodiment of the invention is, increases the step that the mid point of all series arms in S700, the described main capacitor bank links to each other with the series arm mid point of described one-level, secondary auxiliary capacitor group behind described step S600.
The described capacitor configuration method of fourth embodiment of the invention is by half branch road parallel connection---and be the mid point and the mode that the series arm mid point of described one-level, secondary auxiliary capacitor group links to each other of all series arms in S700, the described main capacitor bank, can further reduce to regulate step-length.
Referring to Fig. 5, this figure is the capacitor arrangements first example structure figure of system of the present invention.
The described capacitor arrangements of first embodiment of the invention system comprises:
Main capacitor bank 1 comprises a plurality of described series arm 11 parallel with one another; Each series arm 11 comprises the N platform main capacitor 111 of mutual series connection;
One group of one-level auxiliary capacitor group 2 comprises a branch road by 21 series connection of N platform one-level auxiliary capacitor.
Described main capacitor bank 1 is in parallel with 2 groups of described one-level auxiliary capacitors.
The main capacitor 111 that the described capacitor arrangements of first embodiment of the invention system adopts is a large value capacitor, has reduced the platform number of total capacitance device 111, has reduced capacitor group cumulative volume and weight, is convenient to install and transportation, has improved applicability at the scene.
The described capacitor arrangements of first embodiment of the invention system is owing to adopt one-level auxiliary capacitor group 2, can pass through one-level auxiliary capacitor 21, adjusting step-length when having reduced reactive power compensation realizes accurate reactive power compensation, reduces the load of power-supply system and voltage regulator, intermediate transformer.
Referring to Fig. 6, this figure is the capacitor arrangements second example structure figure of system of the present invention.
The difference of the described capacitor arrangements of second embodiment of the invention relative first embodiment of system is that the mid point of all series arms 11 in the described main capacitor bank 1 links to each other with the series arm mid point of described one-level auxiliary capacitor group 2.
The described capacitor arrangements of second embodiment of the invention system can further reduce to regulate step-length by the half branch road parallel connection mode of (mid point that is all series arms 11 in the described main capacitor bank 1 links to each other with the series arm mid point of described one-level auxiliary capacitor group 2).
Referring to Fig. 7, this figure is capacitor arrangements the 3rd example structure figure of system of the present invention.
The difference of the described capacitor arrangements of third embodiment of the invention relative first embodiment of system is,
The difference of the described capacitor arrangements of third embodiment of the invention relative first embodiment of system is, increases by one group of secondary auxiliary capacitor group of configuration.
The described capacitor arrangements of third embodiment of the invention system also comprises and described main capacitor bank 1 and described one-level auxiliary capacitor group 2 equal one group of secondary auxiliary capacitor group 3 in parallel.
Described secondary auxiliary capacitor group 3 comprises a branch road by 31 series connection of N platform secondary auxiliary capacitor.
Described main capacitor bank 1 and described one-level auxiliary capacitor group 2 and one group of secondary auxiliary capacitor group 3 are all in parallel.
At this moment, serve as the basic unit that regulates with secondary auxiliary capacitor 31 series arms when reactive power compensation is regulated, the adjusting step-length can be reduced to the capacity of N* secondary auxiliary capacitor.Secondary auxiliary capacitor capacity can be 1/4 of described main capacitor capacity, and Ci Shi adjusting step-length is reduced to N*S/4 so.
Referring to Fig. 8, this figure is capacitor arrangements the 4th example structure figure of system of the present invention.
The difference of the described capacitor arrangements of fourth embodiment of the invention relative the 3rd embodiment of system is, the series arm mid point of the mid point of all series arms 11 in the described main capacitor bank 1 and described one-level auxiliary capacitor group 2, and the series arm mid point of described secondary auxiliary capacitor group 3 all links to each other.
The described capacitor arrangements of fourth embodiment of the invention system is by half branch road parallel connection---and be the mid point and the mode that the series arm mid point of described one-level, secondary auxiliary capacitor group links to each other of all series arms in the described main capacitor bank, can further reduce to regulate step-length.
Capacitor arrangements of the present invention system can realize any situation in the described capacitor configuration method of preamble, has function corresponding, no longer describes in detail once more.
The above only is the preferred implementation of capacitor configuration method of the present invention and system; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a capacitor configuration method is characterized in that, said method comprising the steps of:
A, configuration main capacitor bank:
After A1, the series connection of N platform main capacitor, form a series arm; Wherein, N is greater than or equal to 2 even number;
A2, a plurality of described series arm are parallel with one another, form main capacitor bank;
B, one group of one-level auxiliary capacitor group of configuration:
After B1, the series connection of N platform one-level auxiliary capacitor, form one group of one-level auxiliary capacitor group;
C, described main capacitor bank are in parallel with described one-level auxiliary capacitor group.
2. capacitor configuration method according to claim 1 is characterized in that, described one-level auxiliary capacitor is 1/2 of a described main capacitor capacity.
3. capacitor configuration method according to claim 2 is characterized in that, the mid point of all series arms in the described main capacitor bank links to each other with the series arm mid point of described one-level auxiliary capacitor group.
4. capacitor configuration method according to claim 1 and 2 is characterized in that, described method also comprises:
D, one group of secondary auxiliary capacitor group of configuration:
After D1, the series connection of N platform secondary auxiliary capacitor, form one group of secondary auxiliary capacitor group;
E, described main capacitor bank are in parallel with described secondary auxiliary capacitor.
5. capacitor configuration method according to claim 3 is characterized in that, described secondary auxiliary capacitor is 1/4 of a described main capacitor capacity.
6. capacitor configuration method according to claim 5, it is characterized in that, the mid point of all series arms in the described main capacitor bank, the series arm mid point of described one-level auxiliary capacitor group, and the series arm mid point of described secondary auxiliary capacitor all links to each other.
7. a capacitor arrangements system is characterized in that, described system comprises:
Main capacitor bank comprises a plurality of described series arm parallel with one another; Each series arm comprises the N platform main capacitor of mutual series connection;
One group of one-level auxiliary capacitor group comprises a branch road by the series connection of N platform one-level auxiliary capacitor;
Described main capacitor bank is in parallel with described one-level auxiliary capacitor group.
8. capacitor arrangements according to claim 7 system is characterized in that described one-level auxiliary capacitor is 1/2 of a described main capacitor capacity.
9. capacitor arrangements according to claim 7 system is characterized in that described system also comprises:
With described main capacitor bank and the equal one group of secondary auxiliary capacitor group in parallel of described one-level auxiliary capacitor group;
Described secondary auxiliary capacitor group comprises a branch road by the series connection of N platform secondary auxiliary capacitor.
10. according to claim 7 or 8 or 9 described capacitor arrangements systems, it is characterized in that,
The mid point of all series arms in the described main capacitor bank links to each other with the series arm mid point of described one-level auxiliary capacitor group;
Or, the mid point of all series arms in the described main capacitor bank, the series arm mid point of described one-level auxiliary capacitor group, and the series arm mid point of described secondary auxiliary capacitor group all links to each other.
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| CN2010102236190A CN101882790B (en) | 2010-06-30 | 2010-06-30 | Capacitor configuration method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103151720A (en) * | 2013-02-25 | 2013-06-12 | 山东电力设备有限公司 | Method and equipment for heating transformer oil from inside of transformer |
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| CN101562342A (en) * | 2009-05-27 | 2009-10-21 | 常淑云 | Grouping switching dry-type self-healing high-voltage capacitor device |
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- 2010-06-30 CN CN2010102236190A patent/CN101882790B/en active Active
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| WO2005085970A1 (en) * | 2001-06-05 | 2005-09-15 | Mcdaniel William D | Automatic power factor correction using power measurement chip |
| CN1667337A (en) * | 2004-03-10 | 2005-09-14 | 西安重型机械研究所 | Intellectualized dynamic reactive compensation method for electric furnace |
| CN2775910Y (en) * | 2005-02-23 | 2006-04-26 | 深圳市三和电力科技有限公司 | High voltage reactive automatic compensator |
| CN101562342A (en) * | 2009-05-27 | 2009-10-21 | 常淑云 | Grouping switching dry-type self-healing high-voltage capacitor device |
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