CN203850085U - Compact and integrated linear electric reactor for ship and ocean engineering - Google Patents

Abstract

The utility model discloses a compact and integrated liner electric reactor for ship and ocean engineering. The compact and integrated liner electric reactor for the ship and ocean engineering comprises multiple electric reactor windings, wherein the multiple electric reactor windings are wound around the same iron core and located at different positions of the iron core, and each electric reactor winding comprises two series winding sections which are equal in number of turns and opposite in winding direction. The compact and integrated liner electric reactor for the ship and ocean engineering has the advantages of being high in integrity, compactness, independence and linearity, the defects of a hollow electric reactor and an iron core electric reactor can be effectively overcome, and the compact and integrated liner electric reactor can be applied to the ship and ocean engineering and other occasions where the sizes of spaces are limited.

Description

A kind of compact integrated form boats and ships and ocean engineering linear reactor

Technical field

The utility model relates to a kind of reactor, particularly a kind of compact integrated form boats and ships and ocean engineering linear reactor.

Background technology

Boats and ships and ocean engineering electric power system extensively adopt power electronic equipment, convertor assembly is wherein the main source of boats and ships and ocean engineering Harmonious Waves in Power Systems, for ensureing the quality of power supply of electric power system, must administer harmonic wave, and administer when harmonic wave, must need reactor.Because boats and ships and ocean engineering space are restricted, if use air core reactor, not only take up space large, and electromagnetism disperses and easily affect ship equipment operation, thereby boats and ships and ocean engineering adopt iron core reactor conventionally with filter reactor.Its great advantage is that volume is little, but major defect is: non-linear, AC resistance affects filter effect greatly, and vibrating noise is large.The deficiency of applying in boats and ships and ocean engineering in order to overcome air core reactor and iron core reactor, is necessary to develop a kind of novel reactor, and this reactor need possess the features such as integration, compactedness, independence and the linearity be better.

According to Theory of Electromagnetic Field, magnetic field is produced by electric current, passes to electric current in conductor, and the space around it produces corresponding magnetic field.The form that often current－carrying conductor is turned to coil (winding) in reality, the physical phenomenon being connected each other by magnetic field separately between current-carrying coil is called magnetic coupling.Be subject to the inspiration of Transformer Winding leakage inductance, a kind of integrated method is integrated in reactor winding in transformer exactly, but the maximum difficult point of this Novel reactor is the realization of its decoupling zero mode.

Summary of the invention

Technical problem to be solved in the utility model is, for prior art deficiency, provides a kind of compact integrated form boats and ships and ocean engineering linear reactor, effectively overcomes the shortcoming of air core reactor and iron core reactor.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of compact integrated form boats and ships and ocean engineering linear reactor, comprise multiple reactor windings, described multiple reactor winding is all wound on the diverse location of same transformer core, and each reactor winding comprises two sections of equal turn numbers, around the series connection winding segments to contrary.

Compared with prior art, the beneficial effect that the utility model has is: integrated form reactance utensil of the present utility model has the good feature of integration, compactedness, independence and the linearity, the shortcoming of air core reactor and iron core reactor can be effectively overcome, boats and ships and ocean engineering etc. can be applied to the conditional occasion of space size requirement.The utility model can be realized the Integration Design of reactor and transformer, forms independently linear reactor, due to its integration and compactedness, thereby can effectively reduce to equip volume, raising manufactured materials utilance, reduction manufacturing cost.

Brief description of the drawings

Fig. 1 is the integrated form reactance device schematic diagram being integrated in transformer;

Fig. 2 is the integrated form reactance winding magnetic flux schematic diagram that circulates in transformer core;

Fig. 3 is the integrated reactance winding leakage inductance calculation schematic diagram that is applied to boats and ships and ocean engineering.

Embodiment

As shown in Figure 1, due to integrated reactor winding 2 manufacture equal turn numbers, around the form of series connection mutually of the two sections of windings 3 and 4 to contrary, when normal work, power supply winding 1 is in generation magnetic field, space, and forming magnetic interlinkage by iron core and reactor winding 2, every section of coil of connecting in the latter so all can produce induced potential; But the induced potential in winding 2 is each section of coil-induced electromotive force sum on the whole, due to two sections of windings 3 and 4 are equal turn numbers, around to contrary, their induced potential is equivalent reverse, therefore total induced potential of winding 2 is zero on the whole.Even if the external load of winding 2 forms closed loop, can not produce induced current yet, thereby can not produce power coupling.Otherwise, because two ends winding 3 and 4 is around the arrangement to contrary, in winding 1, produce two contrary induced potentials, and its algebraical sum is zero, thereby winding 2 can not produce power coupling influence to winding 1 equally.According to transformer theory, when each winding is normally worked, the self-induced magnetic flux chain of single winding comprises the main flux chain that circulates in iron core and the leakage flux chain with air interlinkage.As shown in Figure 2, there is respectively magnetic interlinkage with winding 3 and 4 in winding 1, i.e. main flux chain, but due to winding 3 and 4 are equal turn numbers, around to contrary and series connection mutually, the magnetomotive force that they produce is so equivalent reverse, thereby the magnetic flux being produced by magnetomotive force can be cancelled out each other.See on the whole, the main flux that winding 2 inside are produced by itself is zero substantially, only has leakage flux to exist, thereby has formed leakage inductance.Because it is saturated that stray field is difficult in air, between integrated reactor winding, ensure the independence of stray field separately by phase mutual edge distance in addition, thereby make its linearity better.For reactor winding 2 and 5, from analysis similar to the above, see on the whole, between them, they can realize decoupling zero separately and between Transformer Winding, and form respectively independently integrated form reactance device.

In Fig. 3, known permeability of vacuum is , suppose that the number of turn of winding 3 and 4 is n, the inductance value of this integrated form reactance device can be provided by following formula:

In formula,

； ； ； 。

Wherein, afor the spacing of winding 3 and 4, span 15 ~ 30mm; bfor every section of axis of winding length, span 50 ~ 100mm; cfor the radial length of winding, span 15 ~ 30mm; dfor winding is to the radial distance of iron core, span 10 ~ 70mm; efor the winding mean radius of winding, span 10 ~ 80mm.

Claims (2)

1. compact integrated form boats and ships and an ocean engineering linear reactor, comprises multiple reactor windings, it is characterized in that, described multiple reactor windings are all wound on the diverse location of same transformer core; Each reactor winding comprises two sections of equal turn numbers, around the series connection winding segments to contrary.

2. compact integrated form boats and ships according to claim 1 and ocean engineering linear reactor, is characterized in that, the vertical range between two sections of winding segments of each reactor winding is 15～30mm; The winding mean radius of each winding segments is 10 ~ 80mm.