SU68118A1 - Electrical transport device with contactless power transmission - Google Patents

Description

The present invention is an electric transport device; B with a contactless transmission of power from the way to the cart. This transmission is carried out with the help of two inductively connected oscillatory circuits, one of which (nervous) is located along the road and forms a contactless traction network, and the other (secondary) is mounted on a wagon.

A distinctive feature of the proposed STV arrangement is the use of a series of condensate Topi-n ix batteries, which are connected in series to adine from the loop wires with intervals smaller than half the current wavelength, as the primary circuit capacitance. The indicated inclusion prevents the formation of standing waves of current and voltage.

FIG. 1 shows a schematic diagram of a P1-1 tha non-contact traction of the network of electrofrequency transport; pas figs. 2 and 3 are variants of schemes for the execution of the tract; pa fpg. 4-section of the site of Jusse with the underlying arrangement of the contactless network.

High / frequency generator / power //, //, /// and IV (php. I) threads separate areas: contactless 11th connection set. The substations, in turn, receive power from the centralized, thermally volatile thermal station stations and V via a high-voltage direct-current network. It is possible for a friend to have a power supply circuit, where each high-frequency generator has its own power source and the power supply of each substation is separated from the three-way distribution.

Pot1sri B contactless network increase with increasing it. Therefore, it is advisable to split the network into separate areas that are separate from its generator, 1e) ator, feedstock, 1 st section,;

No. 68118- 2-

to any of its places, since the losses in the contactless traction network B, the difference between the contact points and the traction chains, does not depend on the connection point of the generator.

In the case when the length of the traction section is less than a quarter of the current wavelength, the current distribution is uniform throughout the section. With the extension of the network section and an increase in the frequency of the current, this uniformity on the Voltage and s of the contactless network can be formed: a current of current and voltage preventing the transmission from the network to the frame by electromagnetic induction.

Including capacitors and inductors in the contactless network, it is possible to change the voltage, current and voltage along the section, and, in particular, to eliminate zones in which the current strength is close to zero.

For this purpose, one of the wires of the contactless network can be 1, B1 includes a number of capacitor banks, the distance between which is chosen to be less than half the wavelength.

For more .. long sections of the traction network, it is necessary to apply simple compensation schemes, for example, the diagram shown in PA. 2

In this scheme, capacitors are successively connected to one of the conductors of the contactless network, compensating not inductive overlap in the section, and inductors are connected in parallel to the conductors of the network, which compensate for capacitive current between the individual conductors;

Cajunta with the power of capacitor banks connected in series into the wire of the contact area of the contactless network can exceed the useful transmit power by many times. Therefore, to reduce the cost of the power transmission system, it is possible to use the design of a contactless network (Fig. 3), in which one of the conductors breaks separate areas isolated from each other, which are arranged so that the capacity between the individual sites is sufficient to compensate for .

With the most generous dimensions, the length of each isolated section should be about one-quarter or one-fifth of that length of salt. Separate comedy areas may have different Aline at the same time.

The total loss in the contactless network and in the pr frame is proportional to the product of their Omich resistance R v (R,

If the amount of copper going to the network and to the receiving frame is specified, then the smallest losses in the whole system will be when this copper is divided equally between the frame and the network, i.e., the weight of copper in the traction feeder will be equal to the weight of 1 honey: and in the reception paiMKe. If the length of the network section is / J, and the length of the receiving circuit /, then their resistance

-J - (L; Practically this condition is difficult to fulfill and on,. /

the arrival of a parcel; it’s worth less copper than the net goes. Odiakohmic resistance, - per unit length of the frame should always be less than the resistance L / per unit length of the network. i.e. the ratio of the frame resistance to the resistance of the network area must lie within

li: lt iL

t,) R,

Since the amount of copper in the wires of the contact network is reduced and, by reducing its operational structure, it is possible to reduce losses in the case of non-tact transmission of power and increase the efficiency. system. This problem is solved in the same way as in the transmission of electrically | 1 e-erg: and in terms of direct current or current of low frequency (50-60 Hz).

However, a coist;) the operating system of a contactless network should be different than in the case of a contact network.

The penetration depth of the alternating current in the harness of red 6 (i

Hoii copper is 2sc s / f -1n. Therefore, to use everything

Copper sections PrSVO: diiki contactless network do.zhny be woven of thin wires, isol: ir | 0vann; x from,, 1b to be made in the form of plaster hollow conductors with a copper thickness not greater than the depth of penetration.

Practical application will be found, mainly, of the second type-a provotnik, consisting of copper strips, freely suspended or reinforced on some frame,

E-High Frequency is then evenly distributed over the entire surface of the conductor only in perfectly symmetrical configurations. On the other hand, contactless network areas may not be completely symmetrical, and therefore, to increase copper utilization, it is not possible to perform contactless networks in such a way that the current density is the same across their entire cross section. This can be achieved by running a network of prozodnizhoz razioG | thickness or from individual strips, having them with different thicknesses around the frame, which serves as a body for the conductor of the network. The use of a conductor is different only in the case when the strata, in the thickest place, are less than the penetration depth of the current,

Pomil ohmic losses in the wires of the contactless high-frequency traction network enie may be losses due to electromagnetic radiation and energy losses and the environment due to eddy currents in it and dielectric hysteresis,

In a network that transmits energy by electromagnetic induction, the distance between the wires is significantly less than the wavelength S / -. This is quite enough for the electromagnetic radiation losses to be small compared with copper losses in conductors.

With aerial high frequency network node, the losses in the environment, cii environment are close to zero.

If the network is located underground, it is possible to reduce losses in the environment to a small value by selecting the structure and insulating materials. Expensive and extra-ductile dielectrics {n. Irimer, region-agrofused bitumens) exist, igS order 10, If you run the network in this way so that the dielectric occupies no more than 10% of the total volume of the electric field between the wires, even with a power factor of the contactless network eos -f 0.01, the loss in insulation: and will be P,

The rational design of the traction network and the receiving frame must be made so that, at a given copper consumption and a given current frequency, it must be more likely to be higher, n, a,

Mathematically it can be formulated in such a way that the ratio

I / R ,, R7

 should be the smallest (M-coefficient vzaimoididuk

/ And SRI between the frame and the network).

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No. 68118

One of the ways to improve this ratio is to increase the length of the frame / and reduce the gap between the network conductor and the receiving frame. However, there are certain limits in this direction.

It is also advisable that the conductors of the non-contact traction network be flat, so that the conductor width is: one order or more, and larger than the distance between the conductor surface and the frame.

The flat design of the active conductor provides for the loss; at the same time, the freedom of the rolling stock: 1n of the rolling stock, which can move laterally from the axis of the conductor without any significant drop in voltage on the receiving frame.

On fpg. 4 shows a variant of the highway design, under which a high-density cell 11a is laid.

The base of the highway is a gutter / made of reinforced concrete, simple concrete and; n1 asphalt. The electrical properties of the material from which the bile is made are not superspecific, as it is; to the chute lies outside the electromagnetic field of the network. A continuous trough of thin copper or a series of copper strips is located along the inner surface of the gutter; This trough or band is the external shield of the contactless conductor of the contactless network. The krygga is taken equal or more than the distance between the wheels of the rolling stock (practically within the limits of one to three or four meters). In the absence of a ferromagnetic core, the depth of the trough should not be much less than the width of the active wire of the network.

With a core, the depth of the trough can be significantly reduced; j. times, (.-effective core permeability). Shaped insulators 4 are inserted into the gutter, in the upper part of which you will change the active wire. For convenience of repair, rework, etc. a: You should run the cable, in the form of a tubular copper conductor.

In order to mismatch the location of the crew on the axis of the contactless network site, the mennge was affected by the NN transmissions, it is desirable to perform the network explorer as much as possible. It can be made in the form of a pipe of oval cross section, from about ten centimeters to: a megra and with a height of 20-100 mm. Since the current is distributed only in the thin upper layer, the conductor wall thickness must be chosen in the order of a fraction of a millimeter; In order to impart stiffness to the copper foil, it is not advisable to perform any kind of workplace such as wood. Room capacitors can be on: mep1eny. In the blocks located along the zastka.

To increase the price. Transmission wires of the network should be located as close as possible to the frame. Therefore, it is sometimes more convenient to find the upper ground winding of a contactless network, with the top winding of the cable with a rail, along the ridge of which one of the conductors is laid. Outlines of this | rebp do.tzh1; s allow gzlavny B'ez; 1 and the exit from it without t.chtkov and blows of air. The crew frame is located in the ;; o. Longitudinal axis of the inocce no. A, wasps; wheels. Since the space under the machine is very limited, it is advisable to work with a ferromagnetic heart, which is 1 nm, from the irregular part and the climatic side wings.

P) e d e mt and c o b |) e te

I. Electric vehicle with contactless transmission of E1 ergnn from the path to the wagon of Pomondi two well-connected

Oscillating circuits), one of which (hp) is G1) is located waol do) ogi and forms a contactless contact, ;;; the other one (ETOrnchmy) is installed on the train, of t; i and y 1Ts e with the fact that d) the food convoys with contactless:; about 1 t of liu eats ;: the will of the current and the most; 5 the same p-5 capacity, which enters the Perzichpie kopturggy of Koptur, is composed of a number of individual Coidins; yuriyh battery, z.yuchyomyyh afterwards in one process: icj} BHqi: oi-o contour, lia EXTREMEHiihii one from lrchSo less: ,, n .. nolovim / itmpy tkhzha.

2. Form a device according to ::. This is one of the conductors of the primary circuit B1 is the content of individual isolated D1tug from g;) the main one in the same way as 1: nduktg Vg ijade n i nn en nenn; along each plot, it is com- enended by the fall of the | | between otsdel 5: izolnro D and; - 11 V m; teach st to a, i n.

3. The form of the device but n. i, characterized by the fact that the dimensions of the iridesicas of the first coitua and the secondary contours (frames) are just one, that the total is C0 1 and; 1 wlens per unit | HNN; : D.: l-1HL perlitic x1gt h; and A. bol ;;;; not All optical resistance per unit dt;;,; reception frame DK ,. . that is, the ratio of the full inner light of the son1 N1CH sonot; to the R th circuit to: ohm: ohmic ohmic sensor resistance: ;; print ;: :) amhn f.

R fI

4.In the device but nn. 1-3 for regulating: H) wai11 mon.node, selected from my feeder by the vehicle of the immobile coi-TCBa, using iriver for measuring 5 liacTpoiHHi nr-a little oscillating circuit.

5. Form of lolienn arrangement: 1st nos. -3, about tl ncha about HI, and e the fact that the conductors are nervous about the contour ;;; ek) t then: that we have; you, but who have one HOpsuKa or;; cn),; 1nae ; 1; a ;; st ;; n :: no ms / cn with the conductor of the primary circuit and the receiving frame;.

6. The form of the implementation of the arrangement ;; 5, about i, t and h yu and e by the fact that) the diks of the nerve of the 1st circuit from 1 - (; tо1-.-; n; ots ;: lz copper, foul zg, fortified by the deity around Kai5Kaca.

7. The form of the choice of the structure but 6, about 6 tons; about the fact that the thickness of the copper foil; - neod1P1akov, but, to the fnder, with integer,:; uchet1 n the same current density in all parts of the ocean single nerve contour.

8. The form of the device n (; nn. L-7, o; lnchu HI a 5 with the fact that each of the primary projects of the primary and) together with it; Olvkih Otdel (iara.1,1el |, but connected nanowires.

.}. The device is not subject to any device. 1-8, o t, t and ch and y HI a ;; e (:, THAT is the TOT of n;) ovo.: i11NchOv primary KOHiVi) aL (a., hGH-; pn 1 conductor), in which BK.TioqeiHji nosledovatelvio kodepsatsr ::, 1H) H1o. in the form of a bridge, laid out on its surface on the road, and the second (return) conductor consists of a row of len, exchange 1. iio il 11 ndricheskogo HOBepxHocTiK and interconnection and reverse nonstandard layer is located, jerhn; -HICTB which 10: -o serves as irozzzhe iove road).

l6- The form of the introduction of the street but nn. - u. about t and h ui hU by the fact that nara.t.te.tyu nyamu primary () Nder H1) I1h; k) are the katungku his self iodukotsi1 rapoolozheynye one and relate.in the other to spread out, more than a quarter for: imy voo; current.

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