Utility model content
In view of the above problems, the utility model is proposed to provide a kind of three-dimensional winding iron core adjustable reactor that can overcome the problems referred to above.
According to an aspect of the present utility model, provide a kind of three-dimensional winding iron core adjustable reactor, comprise: three-dimensional winding iron core and the reactance coil be set on described three-dimensional winding iron core, wherein, described reactance coil comprises further: major loop reactance coil and autocoupling type tap voltage regulation coil, wherein, the described first end of major loop reactance coil is connected with the input of high-tension line, and the second end of described major loop reactance coil is connected with the output of described high-tension line; Described autocoupling type tap voltage regulation coil has multiple tap, and the first end of described autocoupling type tap voltage regulation coil is connected with the second end of described major loop reactance coil, second end of described autocoupling type tap voltage regulation coil connects different taps by gear switching controller control connection, to change described major loop reactance coil both end voltage.
Alternatively, described three-dimensional winding iron core is rolled up the symmetrical three-phase stereo formed of iron core by the single frame of three same structures and is rolled up iron core.
Alternatively, major loop reactance coil comprises further: the first major loop reactance coil, the second major loop reactance coil and the 3rd major loop reactance coil, and described autocoupling type tap voltage regulation coil comprises further: the first autocoupling type tap voltage regulation coil, the second autocoupling type tap voltage regulation coil and the 3rd autocoupling type tap voltage regulation coil, wherein, the first end of described first major loop reactance coil is connected with the first input end of high-tension line, and described second end of the first major loop reactance coil is connected with the first output of described high-tension line; The first end of described first autocoupling type tap voltage regulation coil is connected with the second end of described first major loop reactance coil; The described first end of the second major loop reactance coil is connected with the second input of high-tension line, and described second end of the second major loop reactance coil is connected with the second output of described high-tension line; The first end of described second autocoupling type tap voltage regulation coil is connected with the second end of described second major loop reactance coil; The first end of described 3rd major loop reactance coil is connected with the 3rd input of high-tension line, and the second end of described 3rd major loop reactance coil is connected with the 3rd output of described high-tension line; The first end of described 3rd autocoupling type tap voltage regulation coil is connected with the second end of described 3rd major loop reactance coil.
Alternatively, described first major loop reactance coil and described first autocoupling type tap voltage regulation coil are wound on the first single frame volume iron core, described second major loop reactance coil and described second autocoupling type tap voltage regulation coil are wound on the second single frame volume iron core, and described 3rd major loop reactance coil and described 3rd autocoupling type tap voltage regulation coil are wound on the 3rd single frame volume iron core.
Alternatively, the cross section of described three-dimensional winding iron core is accurate polygon.
Alternatively, the cross section activity coefficient of described cross section is 0.95 ~ 0.96.
Alternatively, described gear switching controller is three-phase contactor.
In the three-dimensional winding iron core adjustable reactor that the utility model provides, except being provided with major loop reactance coil, be also provided with the autocoupling type tap voltage regulation coil in parallel with this major loop reactance coil further.Wherein, autocoupling type tap voltage regulation coil has multiple tap, and gear switching controller can the voltage range needed for major loop reactance coil two ends control to connect different taps, to realize the function regulating major loop reactance coil two ends reactance value.The utility model neutral body volume iron core adjustable reactor can realize " have online and carry " regulatory function when major loop not power-off, thus in use can realize economizing on energy and electricity effect well.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification, and can become apparent, below especially exemplified by embodiment of the present utility model to allow above-mentioned and other objects, features and advantages of the present utility model.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
The utility model provides a kind of three-dimensional winding iron core adjustable reactor, and can solve reactor of the prior art can not have the problem of carrying and regulating the economizing on energy and electricity weak effect caused online.The three-dimensional winding iron core adjustable reactor that the utility model provides comprises: three-dimensional winding iron core and the reactance coil be set on described three-dimensional winding iron core, wherein, described reactance coil comprises further: major loop reactance coil and autocoupling type tap voltage regulation coil, wherein, the described first end of major loop reactance coil is connected with the input of high-tension line, and the second end of described major loop reactance coil is connected with the output of described high-tension line; Described autocoupling type tap voltage regulation coil has multiple tap, and the first end of described autocoupling type tap voltage regulation coil is connected with the second end of described major loop reactance coil, second end of described autocoupling type tap voltage regulation coil connects different taps by gear switching controller control connection, to change described major loop reactance coil both end voltage.Particularly, the tap terminals of described autocoupling type tap voltage regulation coil connects the same tap of connecting three-phase windings respectively, to change described major loop reactance coil two ends reactance value.Such as, the tap terminals of described autocoupling type tap voltage regulation coil connects the same tap terminals of three-phase simultaneously, namely the 1st or 2,3,4,5,6 taps of three-phase self coupling tap voltage regulation coil are connected to change and regulate self coupling coil turn, owing to changing self coupling coil turn major loop reactance coil two ends reactance value also along with change.As can be seen here, in the three-dimensional winding iron core reactor that the utility model provides, except being provided with major loop reactance coil, be also provided with the autocoupling type tap voltage regulation coil in parallel with this major loop reactance coil further.Wherein, autocoupling type tap voltage regulation coil has multiple tap, and gear switching controller can the voltage range needed for major loop reactance coil two ends control to connect different taps, to realize the function regulating major loop reactance coil both end voltage.The utility model neutral body volume iron core reactor can realize " have online and carry " voltage regulation function when major loop not power-off, thus in use can realize economizing on energy and electricity effect well.
Introduce the three-dimensional winding iron core adjustable reactor that the utility model provides with reference to the accompanying drawings in detail.
Fig. 1 shows the inner core structural representation of this three-dimensional winding iron core reactor.As shown in Figure 1, this three-dimensional winding iron core reactor inner core structure is combined into by three single frames volume iron core group.
Wherein, three single frame coiled cores are identical and be arranged symmetrically with, and thus whole three-dimensional winding iron core has the stereochemical structure of three-phase symmetrical.Wherein, each single frame volume iron core is divided into symmetrical two half-unit.Three volume iron cores in whole three-dimensional winding iron core reactor are the arrangement of equilateral triangle solid.Owing to adopting three magnetic circuit full symmetrics of the three-dimensional winding iron core reactor of this structure fabrication, thus the length of three magnetic circuits is also identical, so the three-phase magnetic field degree of balance is fine, thus can reduce impedance deviation, makes reactor to produce harmonic wave.In addition, because three single frame coiled cores are identical and be arranged symmetrically with, the angle thus between iron core and iron core and spacing are stablized, thus can ensure that the magnetic circuit of system is stablized.By the vibrational power flow mode shown in Fig. 1, the reactor of the prior art and defect that easily cause impedance deviation excessive asymmetric due to system magnetic circuit can be solved.
Fig. 2 shows and is wrapped in the back panel wiring schematic diagram that Fig. 1 rolls up the reactance coil of iron core outside.Fig. 3 is the equivalent schematic of Fig. 2.With reference to shown in Fig. 2 and Fig. 3, the reactance coil being wrapped in volume iron core outside comprises further: be connected on three-phase major loop reactance coil LT, LS and the LR in the A phase line of high-tension line, B phase line and C phase line respectively, and autocoupling type tap voltage regulation coil Xt, Xs and Xr of being connected with LR with three-phase major loop reactance coil LT, LS respectively.
Particularly, the first end of major loop reactance coil LT is connected with the input of A phase line high-tension line, and its second end is connected with the output of A phase line high-tension line; Autocoupling type tap voltage regulation coil Xt has multiple tap, the first end of this voltage regulation coil Xt is connected with second end (i.e. the output of A phase line high-tension line) of major loop reactance coil LT, and, second end of this voltage regulation coil Xt connects different taps by gear switching controller K control connection, to change described major loop reactance coil LT both end voltage.Similar, the first end of major loop reactance coil LS is connected with the input of B phase line high-tension line, and its second end is connected with the output of B phase line high-tension line; Autocoupling type tap voltage regulation coil Xs has multiple tap, the first end of this voltage regulation coil Xs is connected with second end (i.e. the output of B phase line high-tension line) of major loop reactance coil LS, and, second end of this voltage regulation coil Xs connects different taps by gear switching controller K control connection, to change described major loop reactance coil LS both end voltage; The first end of major loop reactance coil LR is connected with the input of C phase line high-tension line, and its second end is connected with the output of C phase line high-tension line; Autocoupling type tap voltage regulation coil Xr has multiple tap, the first end of this voltage regulation coil Xr is connected with second end (i.e. the output of C phase line high-tension line) of major loop reactance coil LR, and, second end of this voltage regulation coil Xr connects different taps by gear switching controller K control connection, to change described major loop reactance coil LR both end voltage.
Lower mask body introduces the voltage-regulation principle of above-mentioned autocoupling type tap voltage regulation coil Xt, Xs and Xr.For autocoupling type tap voltage regulation coil Xt, Xs and Xr, every phase coil has different voltage regulation coil tap N1, N2, N3, N4, N5 and N6 respectively in the different numbers of turn.Gear switching controller K, according to the different reactance values exported required on major loop reactance coil LT, LS and LR, controls and connects voltage regulation coil tap N1, N2, N3, N4, N5 or the N6 of the corresponding different number of turn on three phase voltage regulating coil Xt, Xs and Xr.Along with the number of turn of autocoupling type tap voltage regulation coil changes, the reactance value that major loop reactance coil exports can be changed, thus reach the object changing output voltage.Wherein, gear switching controller K can realize by controlling to connect three-phase contactor.
Above-mentioned three-phase major loop reactance coil LT, LS and LR, three-phase autocoupling type tap voltage regulation coil Xt, Xs and Xr, be wound on the different core of Three-Phase Transformer respectively; Reactance coil LT and voltage regulation coil Xt is wound on this transformer A phase iron core, and reactance coil LS and voltage regulation coil Xs is wound on this transformer B phase iron core, and reactance coil LR and voltage regulation coil Xr is wound on this transformer C phase iron core.
In sum, in the three-dimensional winding iron core adjustable reactor that the utility model provides, adjustable autocoupling type tap voltage regulation coil is assisted for one group in parallel while of on major loop reactance coil, the tap of autocoupling type tap voltage regulation coil is connected by adjustment, sense that major loop reactance coil two ends reactance value changes, as long as adjust the tap of the autocoupling type tap voltage regulation coil of subsidiary loop like this, just can reach major loop not power-off, have online and carry regulatory function.Wherein, major loop reactance coil is connected in high-tension line, plays the effect that filtering harmonic wave reduces voltage; Autocoupling type tap voltage regulation coil is in parallel with major loop reactance coil, controlled to connect the reactance value that different taps changes major loop reactance coil two ends by change over switch, playing when ensureing major loop not power-off, just can control the object of the larger electric current of major loop with small area analysis.
Three-dimensional winding iron core adjustable reactor in the utility model can be widely used in lowering and stabilizing blood pressure energy-saving equipment, wind-powered electricity generation, intelligent grid and power electronics industry in high-low pressure electrical network, can solve the problem that the reactor own loss used in current transmission line is high, can not carry adjustment at tape.
Compared with prior art, at least there is following beneficial effect in the utility model:
One, the output reactance value of adjustable reactor of the present utility model can adjust when major loop not power-off, the tap of auxiliary autocoupling type coil windings is connected by adjustment, sense the change of major loop reactance value, have also been changed output end voltage simultaneously.
Two, the confinement of conventional planar structure is broken through, adopt three identical semi-circular section volume iron cores, be combined into equilateral three-dimensional tri-phase iron core, make tri-phase iron core magnetic circuit full symmetric, magnetic resistance greatly reduces, exciting curent, no-load loss significantly reduce, and become running noises less, the energy-efficient triangle winding iron core new product that structure is more compact.Therefore, of the present utility model have online carry Regulatable reactor and be widely used in the economize on electricity product of electrical network and distribution system, particularly the distribution system of voltage levels high power capacity has more unique advantage.Power electronics, wind-powered electricity generation, photovoltaic and intelligent grid is also widely used in owing to having unique online not power-off adjustable function.
Three, save material, reduce costs.Stereo-triangular wound iron core rod cross section in the utility model is accurate polygon, cross section activity coefficient can reach 0.95 ~ 0.96, and the stem cross section of traditional folded iron core is notch cuttype, cross section activity coefficient is only 0.89 ~ 0.925, therefore when same cross-sectional area, the average turn length 2 ~ 3% of the heart line bag of the iron core more folded than tradition of the stereo-triangular wound iron core in the utility model, namely saves copper material 2 ~ 3%, saves silicon strip about 15%.
Four, improve performance, reduce the wastage.Because the average magnetic circuit of stereo-triangular wound iron core of the present utility model is shorter than the average magnetic circuit of traditional folded iron core, therefore the weight of the folded iron core that the weight ratio of stereo-triangular wound iron core of the present utility model is traditional is obviously light.When technological coefficient is identical, the no-load loss of stereo-triangular wound iron core of the present utility model is just obviously low, and performance is good.Three-dimensional winding iron core reactor of the present utility model compares with same capacity lamination reactor, saves silicon steel sheet consumption about 20%, copper consumption 2 ~ 3%, no-load current decline 70%, noise decline 5dB (A) ~ 9dB (A).
Five, noise is reduced.Stereo-triangular wound iron core of the present utility model is reeled successively by several trapezoidal material strip to form, tightr between silicon strip, the magnetic conduction direction of silicon strip and the magnetic circuit direction of iron core completely the same, vibrate little during work, and the noise that traditional folded iron core sends because magnetic circuit is discontinuous can be solved, noise reduction can be made to arrive bottom line, and general comparable folded appendiron core transformer reduces by 8 ~ 15dB (A), substantially reaches mute state.
Six, three-phase equilibrium.Because three stems of traditional folded iron core are planar alignment, make the length of magnetic path of three stems inconsistent like this: the length of magnetic path of middle stem is the shortest, the magnetic circuit of two side columns is longer, the average length of magnetic path length of magnetic path long more than 20% average than center pillar of two side columns, thus cause the loss difference of three stems larger, center pillar loss is minimum, and the loss of two side columns is comparatively large, causes three-phase imbalance.And the stereo-triangular wound iron core in the utility model is put together by three identical single frames, three stems are triangular arranged, and the length of magnetic path of three stems is completely the same, and the shortest, and three stem losses are consistent, thus three-phase equilibrium.
Intrinsic not relevant to any certain computer, virtual system or miscellaneous equipment with display at this algorithm provided.Various general-purpose system also can with use based on together with this teaching.According to description above, the structure constructed required by this type systematic is apparent.In addition, the utility model is not also for any certain programmed language.It should be understood that and various programming language can be utilized to realize content of the present utility model described here, and the description done language-specific is above to disclose preferred forms of the present utility model.
In specification provided herein, describe a large amount of detail.But can understand, embodiment of the present utility model can be put into practice when not having these details.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, be to be understood that, in order to simplify the disclosure and to help to understand in each utility model aspect one or more, in the description above to exemplary embodiment of the present utility model, each feature of the present utility model is grouped together in single embodiment, figure or the description to it sometimes.But, the method for the disclosure should be construed to the following intention of reflection: namely the utility model required for protection requires feature more more than the feature clearly recorded in each claim.Or rather, as claims below reflect, all features of disclosed single embodiment before utility model aspect is to be less than.Therefore, the claims following embodiment are incorporated to this embodiment thus clearly, and wherein each claim itself is as independent embodiment of the present utility model.
Those skilled in the art are appreciated that and adaptively can change the module in the equipment in embodiment and they are arranged in one or more equipment different from this embodiment.Module in embodiment or unit or assembly can be combined into a module or unit or assembly, and multiple submodule or subelement or sub-component can be put them in addition.Except at least some in such feature and/or process or unit be mutually repel except, any combination can be adopted to combine all processes of all features disclosed in this specification (comprising adjoint claim, summary and accompanying drawing) and so disclosed any method or equipment or unit.Unless expressly stated otherwise, each feature disclosed in this specification (comprising adjoint claim, summary and accompanying drawing) can by providing identical, alternative features that is equivalent or similar object replaces.
In addition, those skilled in the art can understand, although embodiments more described herein to comprise in other embodiment some included feature instead of further feature, the combination of the feature of different embodiment means and to be within scope of the present utility model and to form different embodiments.Such as, in the following claims, the one of any of embodiment required for protection can use with arbitrary compound mode.
All parts embodiment of the present utility model with hardware implementing, or can realize with the software module run on one or more processor, or realizes with their combination.It will be understood by those of skill in the art that the some or all functions that microprocessor or digital signal processor (DSP) can be used in practice to realize according to the some or all parts in the device of the utility model embodiment.The utility model can also be embodied as part or all equipment for performing method as described herein or device program (such as, computer program and computer program).Realizing program of the present utility model and can store on a computer-readable medium like this, or the form of one or more signal can be had.Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or provides with any other form.
It should be noted that above-described embodiment is described the utility model instead of limits the utility model, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and does not arrange element in the claims or step.Word "a" or "an" before being positioned at element is not got rid of and be there is multiple such element.The utility model can by means of including the hardware of some different elements and realizing by means of the computer of suitably programming.In the unit claim listing some devices, several in these devices can be carry out imbody by same hardware branch.Word first, second and third-class use do not represent any order.Can be title by these word explanations.