CN200944347Y - Common-tower dynamic simulation test system - Google Patents
Common-tower dynamic simulation test system Download PDFInfo
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- CN200944347Y CN200944347Y CN 200620132040 CN200620132040U CN200944347Y CN 200944347 Y CN200944347 Y CN 200944347Y CN 200620132040 CN200620132040 CN 200620132040 CN 200620132040 U CN200620132040 U CN 200620132040U CN 200944347 Y CN200944347 Y CN 200944347Y
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Abstract
The utility model discloses a joint use dynamic simulation test system, relating to the simulation test of the electric power system, using the order parameter equivalent method, adding in a loop mutual inductance and a loop leakage inductance in the zero sequence loop of the order parameter to simulate the interphase mutual imductance of each line and the mutual inductance between two loops. The leakage reactance of the mutual inductance transformer is used for counting the leakage reactance. The materials of the iron core of the mutual inductance transformer are Z<10-0.3> or similar cold rolling silicon steel sheets; the structure of the iron core adopts an ostium shaped iron core; and no joints are between each arms of the cylinder of the iron core. The major and minor windings of the winding are completely same, each is of 168 coils, and completely symmetrical, each is divided into two separate windings; each separate winding is wound of 84 coils, in 12 layers, with each layer of 7 coils; each separate winding is added 4 taps, each separate winding has 6 taps in all, and from the eighth layer the taps is increased, with each layer added 1 tap. The guage selects a 7*1.8 mm insulation enameled stranded wire. The utility model can be completely used for the non-joint two-circuit simulation, with accurate data, and can save investment and floor area, with good performance, agile selecting and adjusting of parameters and convenient group mode regulation.
Description
Technical field
The utility model relates to the simulation dynamic test system of electric power system, particularly a kind of parallel lines on same tower dynamic analog test system.
Background technology
Along with developing rapidly of power industry, a large amount of same bar double back transmission lines has appearred in China 110KV and 220KV system, and some have also appearred in 330KV and 500KV system in succession with the bar double back transmission line.The appearance of double-circuit line has increased the complexity of transmission line, thereby relaying protection is had higher requirement.
For to being used for double-circuit line, especially the protective relaying device on double-circuit line on same pole road carries out performance and quality examination test, and power equipment need be set up the double back transmission line model of conformance with standard requirement with instrument quality testing center relaying protection measuring station.At present, with regard to the dynamic analog circuit, domestic still do not have a parallel lines on same tower dynamic analog test system design scheme.And the relevant device of the dynamic simulator system of institution of higher learning and enterprise does not all adopt the equivalent scheme of this parameter to simulate the parallel lines on same tower circuit both at home and abroad.In the middle of the prior art, many both at home and abroad employing iron core mutual-inductance elements are simulated.But also there are some problems in the iron core mutual-inductance element, is subjected to the influence of the parameter frequency characteristic solution that requires study such as core loss and iron core saturated.
Summary of the invention
In order to solve the problems referred to above in the middle of the prior art, the purpose of this utility model provides a kind of parallel lines on same tower dynamic analog test system.
Proposed the scheme of " adopting the simulation of order parameter principle of equivalence with the bar double back transmission line ", the basic way of this scheme is exactly for this reason: between " zero line " of the single back line of two reuse order parameter principle of equivalences simulation in parallel insert voltage ratio be 1 and transformer (being called inductance transformer) with certain leakage reactance come mutual inductance between the simulated dual loop line.By anti-equivalence of mutual inductance and implementation thereof---the design of inductance transformer between the parallel lines on same tower circuit, reached the technical indicator of simulating the parallel lines on same tower circuit reasonably and accurately.
These technological difficulties are that it is with mutual inductance between the double-circuit lines on the same pole road and hold water ground equivalence of the alternate mutual inductance of circuit separately.
According to the order parameter principle of equivalence, adopted the inductance transformer of two kinds of models, the loop mutual inductance in the middle of difference analog line two ends and the circuit is anti-and alternate mutual inductance is anti-, thereby has realized the equivalence simulation of the parallel lines on same tower circuit of conformance with standard requirement.
The technical scheme in the invention for solving the technical problem is: a kind of parallel lines on same tower dynamic analog test system, adopt the order parameter equivalent method, in the zero sequence loop of order parameter, add the anti-and loop leakage inductance of entry loop mutual inductance and resist the alternate mutual inductance of simulating every circuit and the mutual inductance between two loop lines.Leakage reactance analog computation leakage reactance with inductance transformer.The core material of inductance transformer is that model is Z
10-03Cold rolling silicon steel sheet; Core structure adopts the square shape iron core; There is not seam between cylindrical each arm of iron core.
The winding of inductance transformer is arranged: model is that the inductance transformer major-minor winding of HB-1.4 is identical, respectively is 168 circles; The major-minor winding is symmetry fully, each minute two sub-windings; Each sub-winding is respectively around 84 circles, around 12 layers, and every layer 7 circle; Each sub-winding increases by 4 taps, and each sub-winding is totally 6 taps, adds tap since the 8th layer, and every layer adds 1.Model is that the inductance transformer winding of HB-2.8 arranges that the major-minor winding is identical, respectively is 240 circles.The major-minor winding is symmetry fully, and each minute two sub-windings, each sub-winding are respectively around 120 circles, around 12 layers, and every layer 10 circle.Each sub-winding increases by 4 taps (each sub-winding is totally 6 taps), adds tap since the 8th layer, and every layer adds 1.
Main tapping is main winding tap (A3)-(A10) and the corresponding tap of auxiliary winding tap (B3)-(B10), and corresponding leakage reactance value is 1.4 ohm of the specified short-circuit reactance values (model HB-1.4) and 2.8 ohm (model HB-2.8) of design.Other tap is the different reactance values that are provided with for the difference requirement of satisfying realistic model, makes the short-circuit reactance of inductance transformer adjustable flexibly, easy to use.
The parameters requirement of inductance transformer comprises rated voltage, rated capacity, short-circuit reactance value, no-load current.
Model is the parameter request of the inductance transformer of HB-1.4:
Voltage U
1/ U
2=63 ± 12.6/63 ± 12.6V
Rated current I
1=I
2=5.24A
Capacity Q
e=330VA=0.33KVA
Short-circuit reactance
Transformer is unsaturated in the voltage range that requires
X
K (Ω)Can convenient adjusting in ± 10% differential scope
No-load current I
0≤ 1.8%.
Wire gauge is chosen: select 7 * 1.8mm insulation enamel-cover twisted wire for use.
Model is the parameter request of the inductance transformer of HB-2.8:
Voltage U
1/ U
2=126 ± 25.2/126 ± 25.2V
Rated current I
1=I
2=5.24A
Capacity Q
e=660VA=0.66KVA
Short-circuit reactance
Transformer is unsaturated in the voltage range that requires
X
K (Ω)Can convenient adjusting in ± 10% differential scope
No-load current I
0≤ 1.8%.
Wire gauge is chosen: select 7 * 1.8mm insulation enamel-cover twisted wire for use.
Like this, the parallel lines on same tower analogue system is realized by the designed inductance transformer of the present invention.
Owing to adopted above-mentioned technical scheme, the beneficial effect that the utlity model has is: can be used for non-ly with the two circuit simulation of bar fully, data are accurate, and are practical.Reduce investment outlay greatly and floor space, because of present circuit element of simulating single time all can utilize mostly, except that inductance transformer, do not need a large amount of in addition designs to process other elements, thereby can save great amount of investment (about more than 300,000 yuan), also need not enlarge floor space, this is one of its outstanding advantage.Performance is good: be particular design because of being used to simulate single-circuit line reactance element at present, and functional, do not exist the core loss that adopts iron core reactance component etc. to exist big, problem such as frequency characteristic is bad.Parameter is selected to adjust flexibly, can utilize the existing line element to have many tap combinations, and parameter is selected to adjust very flexible.The debugging of group mould is convenient: because of X
1, X
ZH, X
ZLWait the debugging of can adjusting respectively of each parameter, do not deposit big mutual restriction etc. therebetween, thus the debugging of the group mould of analogue system if go on foot in accordance with regulations preface carry out very smoothly convenient.Because to the particular design of iron core and winding, supporting special-purpose inductance transformer has the following advantages: voltage ratio Ku=U1/U2=1 has enough capacity; Have many taps; Enough V-A characteristic curve ranges of linearity and enough big excitation reactance are arranged; Has suitable leakage reactance and adjustable flexibly.
Analysis and research show with practice, adopt order parameter equivalent method simulation double-circuit line on same pole road principle correct.
Description of drawings
Fig. 1 is the inside tap setting situation schematic diagram of the inductance transformer major-minor winding of parallel lines on same tower dynamic analog test of the present utility model system.Wherein A1, A2 ... A12 represents the main winding tap, B1, B2 ... B12 vice tapping.
Fig. 2 is the outside placement location of the inductance transformer major-minor winding of parallel lines on same tower dynamic analog test of the present utility model system.Wherein b1 represents the winding height, and b12 represents distance between the major-minor winding.
Fig. 3 is the concrete connection diagram of inductance transformer in the parallel lines on same tower analogue system of parallel lines on same tower dynamic analog test of the present utility model system, X wherein
JH/ 2nT is anti-for calculating mutual inductance.Concrete implication sees also annex and " adopts the order parameter equivalent method ".With a reactance component simulation, the mutual inductance that can simulate the parallel lines on same tower circuit with this patent instrument transformer is anti-in model.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Referring to accompanying drawing, parallel lines on same tower dynamic analog test system has adopted the order parameter equivalent method, add the anti-and loop leakage inductance of entry loop mutual inductance in the zero sequence loop by order parameter and resist the alternate mutual inductance of simulating every loop line road and the mutual inductance between two loop lines: as shown in Figure 1, the tap that A3-A10 is corresponding with B3-B10 is a main tapping, and corresponding leakage reactance value is 1.4 ohm of the specified short-circuit reactance values (model HB-1.4) and 2.8 ohm (model HB-2.8) of design.Other tap is the different reactance values that are provided with for the difference requirement of satisfying realistic model, makes the short-circuit reactance of inductance transformer adjustable flexibly, easy to use.Consider that from the realization aspect of analogue system the design of inductance transformer is an emphasis, promptly will use the leakage reactance analog computation leakage reactance (important parameter relevant) of inductance transformer with mutual inductance between the loop and alternate mutual inductance.
Fig. 1 represents the inside tap setting situation schematic diagram of inductance transformer major-minor winding.Wherein A1, A2 ... A12 represents the main winding tap, B1, B2 ... B12 vice tapping.Fig. 2 is the outside placement location of inductance transformer major-minor winding.Wherein b1 represents the winding height, and b12 represents distance between the major-minor winding.Fig. 3 is the concrete connection diagram of inductance transformer in the parallel lines on same tower analogue system.TH wherein is the utility model inductance transformer.
The realization of inductance transformer in simulation experiment system: inductance transformer satisfies the requirement of leakage reactance parameter at special structural design and material selection that design aspect adopts to guarantee it.Especially in the requirement that reduces aspect the no-load current.The inductance transformer core material is Z
10-0.3Or close cold rolling silicon steel sheet; Core structure adopts the square shape iron core; The cylinder iron prop, no seam.The iron prop size comprises the iron prop height, iron core height overall, iron core beam overall etc.
The winding of HB-1.4 arranges that the major-minor winding is identical, respectively is 168 circles.The major-minor winding is symmetry fully, and each minute two sub-windings, each sub-winding are respectively around 84 circles, around 12 layers, and every layer 7 circle.Each sub-winding increases by 4 taps (each sub-winding is totally 6 taps), adds tap since the 8th layer, and every layer adds 1.
The winding of HB-2.8 arranges that the major-minor winding is identical, respectively is 240 circles.The major-minor winding is symmetry fully, and each minute two sub-windings, each sub-winding are respectively around 120 circles, around 12 layers, and every layer 10 circle.Each sub-winding increases by 4 taps (each sub-winding is totally 6 taps), adds tap since the 8th layer, and every layer adds 1.
Main tapping is main winding tap (A3)-(A10) and the corresponding tap of auxiliary winding tap (B3)-(B10), and corresponding leakage reactance value is 1.4 ohm of the specified short-circuit reactance values (model HB-1.4) and 2.8 ohm (model HB-2.8) of design.Other tap is the different reactance values that are provided with for the difference requirement of satisfying realistic model, makes the short-circuit reactance of inductance transformer adjustable flexibly, easy to use.
The parameters requirement of inductance transformer comprises rated voltage, rated capacity, short-circuit reactance value, no-load current.
The specific design parameter of HB-1.4 is as follows:
Voltage U
1/ U
2=63 ± 12.6/63 ± 12.6V
Rated current I
1=I
2=5.24A
Capacity Q
e=330VA=0.33KVA
Short-circuit reactance
Transformer is unsaturated in the voltage range that requires,
X
K (Ω)Can in ± 10% differential scope, conveniently regulate,
No-load current I
0≤ 1.8%.
Wire gauge is chosen: select 7 * 1.8mm insulating varnish twisted wire for use.
The winding size comprises the thick of winding, height, average thickness, inside radius, major-minor winding spacing.
Winding thick (radial size):
h
1=h
2=67mm gets 68mm
Winding height (axial dimension):
b
1=42.9mm gets 44mm
The winding inside radius:
r＝39.0mm
The winding average thickness
H
av＝6.8cm
Calculated thickness: H
J=5.56cm
Distance between the major-minor winding
b
12＝4.0cm～5.0cm
The concrete parameter of HB-2.8 is as follows:
Voltage U
1/ U
2=126 ± 25.2/126 ± 25.2V
Rated current I
1=I
2=5.24A
Capacity Q
e=660VA=0.66KVA
Short-circuit reactance
Transformer is unsaturated in the voltage range that requires,
X
K (Ω)Can in ± 10% differential scope, conveniently regulate,
No-load current I
0≤ 1.8%.
Wire gauge is chosen: select 7 * 1.8mm insulating varnish twisted wire for use.
The winding size comprises the thick of winding, height, average thickness, inside radius, major-minor winding spacing.
Winding thick (radial size):
h
1=h
2=67mm gets 68mm
Winding height (axial dimension):
b
1＝b
2＝62mm
The winding inside radius:
r＝44.0mm
The winding average thickness
H
av＝6.8cm
Calculated thickness: H
J=5.56cm
Distance between the major-minor winding
b
12＝2.5cm～3.5cm。
Claims (2)
1, a kind of parallel lines on same tower dynamic analog test system, it is characterized in that: in the zero sequence loop of order parameter, add the anti-and loop leakage inductance of entry loop mutual inductance and resist the alternate mutual inductance of simulating each bar circuit and the mutual inductance between two loop lines, with the leakage reactance analog computation leakage reactance with inductance transformer, the core material of inductance transformer is that model is Z
10-03Cold rolling silicon steel sheet; Core structure adopts the square shape iron core; There is not seam between cylindrical each arm of iron core;
The winding of inductance transformer is arranged: the major-minor winding is identical, respectively is 168 circles; The major-minor winding is symmetry fully, each minute two sub-windings; Each sub-winding is respectively around 84 circles, around 12 layers, and every layer 7 circle; Each sub-winding increases by 4 taps, and each sub-winding is totally 6 taps, adds tap since the 8th layer, and every layer adds 1;
Main tapping is main winding tap (A3)-(A10) and the corresponding tap of auxiliary winding tap (B3)-(B10), and corresponding leakage reactance value is 1.4 ohm and 2.8 ohm of the specified short-circuit reactance values of design; Other tap is the different reactance values that are provided with for the difference requirement of satisfying realistic model;
The parameter request of first inductance transformer:
Voltage U
1/ U
2=63 ± 12.6/63 ± 12.6V
Rated current I
1=I
2=5.24A
Capacity Q
e=330VA=0.33KVA
Short-circuit reactance
Transformer is unsaturated in the voltage range that requires
X
K (Ω)Can convenient adjusting in ± 10% differential scope
No-load current I
0≤ 1.8%,
Wire gauge is chosen: select 7 * 1.8mm insulation enamel-cover twisted wire for use;
The parameter request of second inductance transformer:
Voltage U
1/ U
2=126 ± 25.2/126 ± 25.2V
Rated current I
1=I
2=5.24A
Capacity Q
e=660VA=0.66KVA
Short-circuit reactance
Transformer is unsaturated in the voltage range that requires
X
K (Ω)Can convenient adjusting in ± 10% differential scope
No-load current I
0≤ 1.8%,
Wire gauge is chosen: select 7 * 1.8mm insulation enamel-cover twisted wire for use.
2, a kind of parallel lines on same tower dynamic analog test according to claim 1 system is characterized in that:
Short-circuit reactance is the specification of 1.4 ohm first inductance transformer:
The winding size comprises the thick of winding, height, and average thickness, inside radius, major-minor winding spacing:
Winding thick (radial size):
h
1=h
2=67mm gets 68mm
Winding height (axial dimension):
b
1=42.9mm gets 44mm
The winding inside radius:
r＝39.0mm
The winding average thickness
H
av＝6.8cm
Calculated thickness: H
J=5.56cm
Distance between the major-minor winding
b
12＝4.0cm～5.0cm。
Short-circuit reactance is the specification of 2.8 ohm second inductance transformer:
Winding thick (radial size):
h
1=h
2=67mm gets 68mm
Winding height (axial dimension):
b
1＝b
2＝62mm
The winding inside radius:
r＝44.0mm
The winding average thickness
H
av＝6.8cm
Calculated thickness: H
J=5.56cm
Distance between the major-minor winding
b
12＝2.5cm～3.5cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620132040 CN200944347Y (en) | 2006-08-30 | 2006-08-30 | Common-tower dynamic simulation test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620132040 CN200944347Y (en) | 2006-08-30 | 2006-08-30 | Common-tower dynamic simulation test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200944347Y true CN200944347Y (en) | 2007-09-05 |
Family
ID=38718984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620132040 Expired - Lifetime CN200944347Y (en) | 2006-08-30 | 2006-08-30 | Common-tower dynamic simulation test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200944347Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872974A (en) * | 2010-04-29 | 2010-10-27 | 华中科技大学 | Modeling method based on space magnetic field with transmission line on one tower |
| CN101593976B (en) * | 2009-03-27 | 2012-01-25 | 华中科技大学 | Method for constructing physical model of double circuit transmission lines on same tower |
| CN103825262A (en) * | 2014-03-18 | 2014-05-28 | 国家电网公司 | Fault current limiter of double-circuit line |
-
2006
- 2006-08-30 CN CN 200620132040 patent/CN200944347Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101593976B (en) * | 2009-03-27 | 2012-01-25 | 华中科技大学 | Method for constructing physical model of double circuit transmission lines on same tower |
| CN101872974A (en) * | 2010-04-29 | 2010-10-27 | 华中科技大学 | Modeling method based on space magnetic field with transmission line on one tower |
| CN101872974B (en) * | 2010-04-29 | 2012-07-04 | 华中科技大学 | Modeling method based on space magnetic field with transmission line on one tower |
| CN103825262A (en) * | 2014-03-18 | 2014-05-28 | 国家电网公司 | Fault current limiter of double-circuit line |
| CN103825262B (en) * | 2014-03-18 | 2017-12-05 | 国家电网公司 | A kind of fault current limiter of double loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070905 |
|
| EXPY | Termination of patent right or utility model |