SU1721697A1 - Conversion set - Google Patents

Abstract

The invention can be used as a secondary power supply for medium and high voltage loads. The device contains three transforming structures with an alternating current source of galvanically interconnected five diagonal electromotive forces (DEDS) in each structure. DEDS poles are connected to the units of consecutively-connected transducer elements, while the DEDS systems of the second and third structures are shifted in phase relative to the DEDS system of the first structure by ± 12 v el.grad. for all integers v except multiples of three. As a result, the symmetry of the performance of the electromagnetic apparatus and the ultrahigh frequency frequency of the pulsation, the symmetry of the processes and the increase in uniformity are provided. This allows you to expand the circuit-functional capabilities of the device and its application area. 7 il.

Description

The invention relates to converter electronics and can be used as a secondary source of power for medium and high DC voltages with an expanded set of load currents and at the same time satisfying the requirements for providing wide circuit and functional capabilities as well as high quality power conversion a number of loads with increased frequency multiplicity of pulsation, not three times and equal to ten for each load, or ultra-high (thirty tnoj) frequency ripple for one load at a relatively small number of winding sections gate (IN) in the case of the EMF sources converted to the most typical, three-phase

an electromagnetic apparatus (EMA) - an electrical machine, a transformer, etc. The device is also realizable as a source of alternating voltages (as an inverter).

The purpose of the invention is to expand the scope.

Figure 1 shows a diagram of a converter unit in the presence of three converter structures with systems of five DEDS (td 5) in each structure and with two systems connected to each pole of the system in series-according to interconnected valve arms forming one valve cell from converting elements (PE) cathode and, accordingly, the anodic of their groups; figure 2 - examples of possible topological implementations shown in

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Fig.1 generalized 5c-system; nafig. Inwards are vector diagrams of signed-on SJI pulses (, k GZ) of voltage Uok at the outputs + and - of the valve cells for connecting them in each kth structure of FIG. 1 into a five-point valve bridge; in Fig. 3, a diagram of the same pulses DB c) for the case of parallel connection of the unipolar leads of these k-bridges, forming a fifteen-cell bridge (L 15); figure 4 - the same as in figure 1, in the installation form for the case of a symmetrical three-phase system of the initial alternating current EMF (ti 3 and 120 °) and when implementing each of the three Sok-systems of the DERS in accordance with their topology in FIG. .2e; Fig. 5 is the same as in Fig. 1 or 4, but when the PE is connected in three five-cell valve bridges connected in different polarized direct current terminals in series; figure 6 - the same as in figure 1 or 4, but when connecting opposite groups of PE adjacent structures into two ten-pentile rings; Fig. 7 is the same as in Fig. 1 or 5 and 3, but for cases of the same type, not phase-shifting impedance or in-phase first and third 50 DEDS systems and reverse (relative to the previous ones) second DEDS systems, i.e. at 502 - a system that is out of phase by 180 or a multiple of 36, but not a multiple of 72 el.grad. relative to the first 5-1 system.

The generalized systems of convertible DEDS for the purpose of simplifying the comprehension and ease of understanding and clarification are depicted in Figs. 1, 5 and 7 not in the traditional assembly form, but in the form of a simplified phase frame displaying the DEDS system in the phase plane. The phasic frame is represented by a circle with circles of poles or DEDS located on it. The angle between them corresponds to the phase shift pKk of one DEDS relative to another within this k-th system: #nk 72 °, k 1,2,3. Since in each system not autonomous, but galvanically connected sources of DEDS are covered, the different conclusions of different DEDS in such systems are common to each pair of them. Therefore, the number of pins and lines connecting them to the PE blocks is reduced, giving the basis to denote the abutment systems used in the device in five DEDSs as a bo-system. Here, the dot above the number 5, like the sign eo in the circle of the phase frame, reflects the sign of the relatedness of the sources of the DEDS, and the index o indicates the pairwise commonality of their poles.

The poles or deds leads are designated ak, bk, Ck, dk, ek, and for FIG. 1.4-7 value of k 1,2,3,

The sets of valve cells are denoted as L5 Vk GZ and are shown for simplicity in a block form, so that the output of a constant current with sign-forming voltages Uok forming on them is indicated by relatively reduced circles with signs + and -.

The connection of two in series according to the included shoulders or the PE of this valve cell is highlighted in the same size circle as the pole 5 of the ok system attached to it, and the phase shift for the second (k 2) and third (k 3) systems in FIG. 1 is illustrated from all possible cases for only one of, from 24 ° relative to the first system.

The different topologies of the common phase frame given in Fig. 2a for generalized 50k systems are illustrated in Fig. 2b-e depending on the number of source sources of the converted EMF. At the same time on fig.2b-gti 5, uei 72 °, nafig.2d, e, and-n, p, ch-3, PH 120 °, on fig.2zh, s, o, sh, eti 2 , and #Vr 90 °, on fig.2 and 2, ri 120 °. The junction points of the individual sections of the initial emf with each other are marked with reduced circles for differences from relatively enlarged circles adopted for the 5 o poles of the system attached to the PE block.

In brackets with Sj in Figs. 3 and 7, there are indications of the pairs of poles of the Sok systems, between which the largest values of the DSDE are formed in this interval of discreteness. They create phase-shifted impulses Su on the load. or S / from the constant output voltage Uok and precisely because of the received image of these pulses in the phase plane in the form of ten dotted petals shifted by a 36 ° angle, clearly and simply illustrates the principle of operation of each separately working converter structure, which allows without further advanced explanation of it.

The converter unit (Fig. 1) contains generalized systems 1-3 of alternating current sources from five galvanically connected diagonal emfs. Each k-Sok-system DEDS is equipped with leads or poles {abcde} k, moreover, with k 1,2,3 in Fig. 1, a special case is presented when the second 2 and third 3 systems are shifted in phase by ± 24 al. relative to the first system 1. In

In general, they can be shifted by any angle, but for an ultra-high (thirty-fold, n 30) pulsation frequency, the phase angle ρ values should be a multiple of 24, but not a multiple of 72 electrical degrees: # 2,3 ± l 240 / p72 °, y {v, p} 6 N 1,2,3, ...

Execution of Sok-systems is possible on the sections of the valve winding of only one or three separate three-phase (with 3, Fig. 1,2,4) or the corresponding number of single-phase EMA (transformers, electric machines, etc.) on planar or spatial magnetic systems. (magnetic cores, etc.) with conventional (wire, bus, foil, etc.) or superconducting windings and with a successive phase shift of one 5 ° system relative to the other by 120 electrical degrees, or with a shift of the second and third systems by ± 24 ° relative to the first 50 system.

The device also contains sets of 4-6 valve cells with five cells each. The sets include PE 7-12, in each cell, two in series in accordance with the valve arms or PE 7 and 8.9 and 10, 11 and 12 included. The point TR e {a ... e} k of the connection of such pairs of PE shown in FIG. 1, in a circle in block sets 4-6, connected via a line (in FIG. 1 for simplicity not shown) to the corresponding to this PE pair terminal or pole {a ... e} k of the k-th eok-systemic 1-3 DEDS.

At the same time, the corresponding systems 1–3 and the valve sets galvanically connected with them, b, will form three converting structures similar to each other. Some of the same electrodes of the first PE 7 of all five vectors of the first set 4 (in Figure 1 are the PE 7 anodes of the anode group of them) and, accordingly, others (unlike the previous ones) of the same name electrodes in mountainous PE 12 of all five valve cells of the third set 6 ( in Figure 1, the cathodes of the PE 12 of their cathode group) can be combined, obrlzu first (negative in figure 1) and second (positive in figure 1) output units -Uoi and + U03.

. The corresponding PE-8-11 electrodes can also be combined in five, forming five-cell / 15k (k 1,2,3) bridges with previous PEs, as well as additional high-voltage leads for connecting autonomous loads or one total load with oppositely sequential (figure 5) or unipolarly parallel connection of the terminals + and - sets 4-6. These outputs can be connected between the assembly directly or through auxiliary, in particular electrical, electrical elements when powering a high-current load.

Conversion unit (figure 1) works as follows.

Since each side system 1-3 contains five sources of phase-shifted DEDS variables, the output terminals + and - sets of 4-6 transducer cells of each k-th conversion structure form a voltage Uok (k 1,2, 3) which, due to the rectifying effect of PE 7-12, are constant sign. At the same time, with a successively symmetric phase shift, the DEDS is 72 degrees. within each Sok-system, these sign-based voltages contain, for one period of converted EMF variables, ten identical pulses 5 (FIG. 3) with equal amplitudes, durations and phase (time) shift by 36 al-degrees. Each pulse is formed by a specific DEDS of one of fi-x. current passing circuits, cyclically naturally switching during one period of emf (ju, Tn).

The doubling of the number of constant impulses relative to the number of DSEDs occurs due to the

attaching each pole {a ... e} k of the 5ok-system to the point Tk {{a ... e} k of two series-according to the included valve arms or PE 7 and 8, 9 and 10, 11 and 12. These are The shoulders provide the rectification of both psalon-periodvs of variables of the DEAC in the process with the well-known principle of operation of bridge structures.

Thus, with combined PZ cathodes and cathodes and, correspondingly, other electrodes (anodes) of the PE anodic, unlike them, their anodic groups each transducer structure provides at the output terminals an almost constant voltage

the level of AUok of its variable component (pulsation) relative to its average value V0 while simultaneously increasing the frequency fnk by a factor of 10 relative to the frequency fc of the converted EMF or primary

generator power / w (network, etc.): kn AUo / V0k, P U / fc 10 (fig.Za-v).

If systems 2 and 3 of the DEDS of the second and third converting structures are shifted in phase from the first 50-system 1 by the angle ргз i v24 ° for all integers v, except V Зр at р € N 1,2, ..., in particular by the angle , h ± 24 ° (Figs. 1.4-6) or ± 120 ° (Fig. 4), then systems of signed impulses S, and Sj "P output

the voltages Uo2 and Uo3 are out of phase by ± 6 el. hail, relative to the conventionally accepted reference point vertically in FIG. 3 or ± 12 el. degrees. in FIG. 3b. with respect to the SJM pulses of the first system shown in FIG. 3A.

Thus, with parallel (FIG. 3g) or series (FIGS. 5 and 6 with vector diagrams similar to the diagram in FIG. 3 d) connecting the DC terminals of the valve cells, the frequency ratio of the total output voltage can be increased up to 30 times (FIG. .G, etc.).

Moreover, in the case of the presence of only a three-phase system of initial emfs, as the most typical, it is possible to obtain not only one system from five galvanically coupled DEDSs, i.e. 50-system, presented, for example, in the versions of fig.2.e.u-n, p, s-h, but also receiving three Sok-systems symmetrically shifted in phase relative to each other and, moreover, not only on different, but, for example, on the same three-phase EMA with sections of the valve winding that are completely identical in its different phases in terms of the number of sections, the number of their turns and the ratios between them. As a result, the coefficient of uniformity or unification increases, the manufacturability, the symmetry of electromagnetic processes and the design are improved.

Such designs of the unit, as follows from FIG. 1,2,4-7, are realizable not in a single, but in a large number of basic variants, just as it is shown in the installation form, in particular, in Fig. 4 with reference to the topological implementation of the 5-DEDS system of FIG. Ze. In a similar manner shown in Fig. 4, specific mounting implementations of a variety of other bsg system topologies, including those shown as private ones, are realized in Fig. 2.

The advanced features are illustrated by the circuit in FIG. 5, in which it is possible to connect one, two, three, or more loads (in FIG. 5, not shown for simplicity) with common or different potential points (outputs). It is also possible to autonomously operate bridges on their individual loads, or work with parallel connection of the same-half pins of two or three bridges to supply the corresponding loads with voltages in accordance with the radar diagrams of FIG. 3.

In the case of sequential connection of structures, it is possible to reduce the number of VPPE, simultaneously sequentially streamlined by the current in each // - m circuit of the current passage (c - 1.30), and thereby improve the efficiency with respect to the circuit in figure 5 if necessary to provide the load with an increased or high voltage with ultra-high frequency multiplicity of pulsation due to the presence of separate phase-shifted 5 ° -DEDS systems. The effect is achieved by combining the PE of the cathode group of the previous structure into the ten-valent ring with the PE of the anode group of the subsequent structure (Fig. 6).

Further empowerment and substantial improvement in various

indicators (mass and energy, energy, etc.) can be achieved by connecting the poles of the same name of 5о-DEDS systems of different structures through one PE, as shown in Fig.7. In this implementation, they are connected directly through a single PE, not unlike, as in the diagram in FIG. 6, but the like poles of different systems, with the first and third of them being of the same type (with fully matching phase frames), and a third

-Reverse previous. As a result, the number of PEs (valve arms) at the junction of the first with the second and second with the third structures is reduced by 2 times relative to the implementations in Figures 5 and 6. At the same time, the value of P 10 is provided, and with the same speed-bridge scheme as in Fig. 5 The output voltage of the converter elements in the circuits of FIGS. 6 and 7 should have a double margin of reverse voltage. With the same type of PE circuits of FIGS. 6 and 7, it is more advantageous to use for consumers in the field of more low output voltage relative to that provided for the same PE with the circuit of FIG. 5. But anyway

The diagrams in Figures 4-7 are also, as private ones, realizable in accordance with the general solution of Figure 1, which also characterizes the essential commonality of this technical solution and the wide circuit-functional,

constructive and technological capabilities. This predetermined a significant expansion of the areas of practical application of this unit in various industrial sectors.

Claims (1)

Invention Formula A converter unit containing sources of EMF variables with five pins or poles, each of which is connected via a line to a point the connections of two series-according to the included valve arms of the conversion elements forming the main valve cell, the same free electrodes of the first elements of all five main cells are combined and form the first output, characterized in that, in order to expand the field of application, the sources of the EMF variables are made in the form of the first common system of five diagonal EMF (DEDS) with a corresponding specific implementation, which, together with these five main valve cells form the first conversion structure, with the first and third converting structures similar to that containing the second and third additional Generalized DEDS systems, to the poles of which, with the appropriate specific design of the systems, are connected the second and third sets of additional valve cells in five cells in each set, and all three DEDS systems are made of the same type (with matching phase frames) or the second and third systems are implemented with a phase shift relative to the first system by ± 24v el.grad. for all integer V, except for multiples of three, or of the same type, the first and third systems are performed, and the second is phase shifted with a plus or minus sign relative to the first and third systems by one of the values of p 36 (1 + 2p) el.grad., for all wholes n, including zero, while the free electrodes of the converting elements of the valve cells form the corresponding output terminals, or those of the same name they are interconnected in each structure, forming five-cell valve bridges in them, the DC outputs of which are autonomous or interconnected sequentially in opposite lines or in parallel unipolar, directly or through auxiliary electric elements or conversion elements with opposite free electrodes of the first and second and Respectively, the second and third structures in the case of the performance of their systems of EDDS of the same type or with a phase shift of 24v al. interconnected in two devital rings or — with only the first and third systems of the same type — both converting elements with opposite free electrodes of the first and second and respectively second and third structures connected to the like poles of their DEDS systems are connected in series-according to each other to form a single-arm chain, and both of these elements are made in the form of a single conversion element, forming a single-valve chain. 4 + C 2 eight -h7 2 .d% 4  s, te 5, l . „Ai.7t.,„ ... | | VAS, W fe, c,) sj (efmsj ( (rf, i,) s I) frf, 0,) S | SjVc, tf ,; WOL, r WML-jSf f W) -, W) s / -1 ) (c; e7; s | h v 3 / ,, S7 Ц 4-% (С3Јз) c) (4.0,) SKW pg th and g (hege szs JO I 5. - (o2cj) s; (e2c2) S8 (“I“ v) s7 5) () e Fig.Z 517 S JO I 5. - 517 S x2 a2 3a3 ua x5 with p „gpeazGgye  y3bs 9% B - - w / ;. u h -z Z2C by e; CJ Z% / r5 Pg-3  "/ J /% / 2 J (120 ° A-24 °) FIG A ЖЖА2 tfWwJ nX2i7ii№afJO t n ±, +, +, + 2 52ГЖУ7 2 о7 1ЗД; Жф L-L-t-LX f; c 7. TTTToO Figure 5 CJ Z% / r5 Pg-3  "/ J /% / F-ff 5 (-Sh ° l + 2F) Ajl -o f-o + -o - -o + with s  3 L AND QJ go QJ rr   Csl m og oh oz AND rr r I u