Electrical energy transmission system which does not require reservation

Abstract

An electric energy transmission system which does not need a reservation has a generator generating a multi-phase electric current, a converter converting it into another electric current, an electric current network connected with the converter and having a first group of electric current lines extending towards electric current users and a second group of electric current ones electrically connecting the electric current lines of the first group with each other, and a plurality of consumer blocks connected with the network and having users which use different electric currents and further converters converting the electric current transmitted by the network into the different electric currents and supplying the different electric currents to the electric current users.

Claims

1. An electric energy transmission system, comprising a generator generating a multi-phase electric current; a converter converting the multi-phase electric current generated by the generator into another electric current; an electric current network transmitting said another electric current and having a first group of electric current lines extending in directions towards electric current users and a second group of electric current lines electrically connecting the electric current lines of the first group with each other; and a plurality of electric current consumer blocks connected with said electric current network and having electric current users which use different electric currents and further converters converting said another electric current transmitted by said electric current network into the different electric currents and supplying the different electric currents to the electric current users.

2. The electric energy transmission system as defined in claim 1, wherein the electric current consumer blocks have a three-phase electric current user, and the further converter converting the electric current transmitted by the electric current network into the three-phase electric current is connected with the three-phase electric current user and supplies this current to this user.

3. The electric energy transmission system as defined in claim 1, wherein the electric current consumers blocks have a two-wire electric current user, and the further converter converting the electric current transmitted by the electric current network into the two-wire electric current is connected with the two-wire electric current user and supplies this current to this user.

4. The electric energy transmission system as defined in claim 1, wherein the electric current consumers blocks have a direct electric current user, and the further converter converting the electric current transmitted by the electric current network into the direct electric current is connected with the direct electric current user and supplies this current to the latter.

5. The electric energy transmission system as defined in claim 1, wherein the converter converting the multi-phase electric current generated by the generator into another electric converts the multi-phase electric current into a single-wire electric current, and the electric current network connected with the converter transmits the single-wire electric current to the electric current consumer blocks.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 of the drawings is a view showing a known conventional electrical energy transmission system;

(2) FIG. 2 is a view showing an electric energy transmission system according to the present invention, having a network of electric current lines;

(3) FIG. 3 is a view showing one of the consumer blocks of the electric energy transmission system according to the present invention;

(4) FIG. 4 is a view showing a converter which converts a multi-phase electric current of an electrical generator into a single-wire electric current to be transmitted in the network of the single-wire electric current lines, according to the present invention;

(5) FIG. 5 is view showing a converter which converts a single-wire electric current transmitted through the network of the single-wire electric current lines into a three-phase electric current supplied to a three-phase electric current user of the system according to the present invention;

(6) FIG. 6 is view showing a converter which converts a single-wire electric current transmitted through the network of the single-wire electric current lines into a two-wire electric current supplied to a two-wire electric current user of the system according to the present invention; and

(7) FIG. 7 is view showing a converter which converts a single-wire electric current transmitted through the network of the single-wire electric current lines into a direct electric current supplied to a direct electric current user of the system according to the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(8) FIG. 1 shows a known electrical energy transmission system for transmitting electric current over large distances. It usually includes several main electric current transmission wires which transmits electric current over significant geographic distances as shown for example on the left side of this figure, and also reserved electric current transmission lines which are shown at the right side of this figure. As mentioned above, this leads to double expenses for transmission of electrical energy.

(9) An electrical energy transmission system of the present invention is shown in FIG. 2. It has an electric current generator generating a multi-phase electric current for example a three-phase electric current and identified with reference numeral 2.1.

(10) An electric current converter 2.2 is located after the multi-phase electric current generator 2.1. It receives the multi-phase electric current generated by the multi-phase electric current generator 2.1 and converts it into another current, for example into a single-wire electric current, with a possible increase of its voltage.

(11) The electrical energy transmission system of the present invention further has a network 2.3 of for example single-wire electric current lines, which has a plurality of for example first single-wire electric current lines (first group of lines) extending in different directions towards electric current users and a plurality second for example single-wire electric current lines (second group of lines) electrically connecting said first single-wire electric current lines with each other.

(12) The network of single-wire electric current lines receives from the converter 2.2 the single-wire electric current and transmits the received single-wire electric current over significant geographic distances to a plurality of electric current consumer blocks 2.4, 2.5, 2.6.

(13) The electric current consumer blocks are shown in FIG. 3. They are spaced from each other and can include a part connected with the single-wire electric current line of the single-wire electric current network 2.3 and having a converter 3.4 converting the single-wire electric current of the network 2.3 into a three-phase electric current, or a converter 3.5 converting the single-wire electric current of the network 2.3 into a two-wire electric current, or a converter 3.6 converting the single-wire electric current of the network 2.3 into a direct current, or a combination of the converters 3.4, 3.5, 3.6.

(14) Each of the electric current consumer blocks can have further a three-phase electric current user or device 3.1, or a two-wire electric current user or device 3.2, or a direct electric current user or device 3.3, or a combination of the users. In order to supply these electric current users or devices with currents the outlet of the converter 3.4 is connected with the electric current user 3.1 and supplies the latter with the three-phase electric current. The converter 3.5 is connected with the electric current user 3.2 and supplies the latter with the two-wire electric current, the outlet of the converter 3.6 is connected with the electric current user 3.3 and supplies the latter with the direct electric current user.

(15) FIG. 4 shows a converter which converts a multi-phase, in this case three-phase electric current into a single-wire electric current. The three-phase electric current is supplied from 3 sources 4.1, 4.2, 4.3. Its three currents are supplied to primary windings of transformers 4.4, 4.5, 4.6 whose secondary winding are connected in series. The transformer 4.7 allows obtaining a required voltage of a load 4.9. A nullifier 4.10 provides a point with a zero voltage.

(16) FIG. 5 shows a converter which converts a single-wire electric current into a three-phase electric current. For this purpose the entering single-wire electric current is divided into 3 currents. First current is inverted by a transformer 5.6 with the windings connected towards one another. Two other currents pass through resonance contours 5.2-5.4 and 5.3-5.5 for obtaining required phase shifts + and −60 degrees on phase loads 5.7, 5.8, 5.9.

(17) FIG. 6 shows a converter which converts a single-wire electric current into a two-phase electric current. A signal from a generator 6.1 is divided into two signals, one of which (the upper one) is inverted by a transformer with oppositely switched winding 6.2. Both obtained currents can be supplied at load 6.3.

(18) FIG. 7 shows a converter which converts a single-wire current into a DC current. The single-wire current is divided by 7.1 into two currents. One of the currents, the lower one, is inverted. Then both currents are supplied to two oppositely switched diodes 7.2, 7.5. The signals of the same polarity are summated and supplied to exits + and −.

(19) In the present invention the network 2.3 is composed completely of single-wire electric current transmission lines. The single-wire transmission lines are electric current transmission lines which are composed of one wire only or of several wires which are twisted together to form a single electric current transmission line. The single-wire electric current network of the present invention is connected directly, without a trunk line, to a single-current source, in this case in particular to the converter 2.2 which receives the electric current from the generator 2.1.

(20) All converters were verified by a simulation using a program Simulink. The results of the simulation are shown in the drawings in form of values of currents. An inlet signal is shown in form of generators of voltage. An exit signal is shown in form of voltages on loads, which represent equivalents of the inlet voltage of the block, where the signal of the given block is supplied.

(21) What is desired to be protected by Letters Patent is set forth in the appended claims.