SU1464182A1 - Device for modeling electric circuits - Google Patents

Abstract

The invention relates to the field of analog computing and can be used in hybrid computing complexes. In the known device, the outputs of the first group of models of typical electric circuits are potentially zero points, realizing expressions of the first Kirchhoff law for poles, the potentials of the poles are the outputs of the second group of models of typical elements, and two groups of measuring channels are additionally introduced. The first group consists of non-inverted and inverted values of currents of models of typical elements, and the second group consists of inverted voltage values that display the potential difference between the poles of models of typical elements organized as multipoles. This allows you to simulate electrical circuits with a separate representation of the internal and external circuits of typical elements and the entire electrical circuit, which increases the efficiency and accuracy of the simulation by eliminating duplication of information and ensuring effective analysis of operating modes associated with changes in the internal connection circuit of multipoles. 1 il.

Description

one

The invention relates to analog computing and can be used in hybrid computing systems.

The purpose of the invention is to expand the functionality of the device, increase the accuracy and efficiency of modeling modes in the electric circuit and unify the device.

The drawing shows a block diagram of the device.

The device contains a synchronization block 1, two triangular matrices 2 and 3 keys, the first and second groups of outputs of the synchronization block are connected respectively to the groups of control inputs of the keys of the first 2 and second 3 triangular matrices, the first identical closing contacts of the keys in the rows of the first triangular matrix The 2 keys combined are their outputs and are connected to

The corresponding outputs M lines of the first rectangular matrixes 4 switches, the second identical switching contacts of the keys in M columns of the first triangular matrix of keys 2 are combined with each other and with the corresponding thin M lines of the first triangular matrix of 2 keys, the first identical switching contacts of keys in M columns The second triangular matrix of the 3 keys are interconnected, are its outputs and are connected to the corresponding outputs of the M columns of the second rectangular matrix of 5 switches, the second ykayuschie contacts keys in the second M rows of the triangular array 3 are combined with each other and with the respective M columns of the second triangular matrix 3 keys, the outputs of the first rectangular matrix 4 pere1slyuchateley combined in line M

4182

connected in series windings of the relay 10 and buttons 11 by the number of keys (K, + K |) in each triangular matrix of 2 and 3 keys, which are relay contacts, each relay containing two symmetrical contacts (K ,, K;) one of each triangular matrix of 2 and 3 keys,

10 Models of typical elements 6 of the electrical circuit are organized so that the input value is the emf of the element, the outputs of the first group are potentially zero points of the poles,

The 15 outputs of the second group are the potentials of the poles, and the two groups of measurement outputs represent the non-inverted and inverted values of the currents, as well as the inverted values of the voltages of the simulated element. Typical Nth Element Elec

the tric-chain correspond to the following matrix equations:

UN PR; FR ,; one

PR.1, IP, Oh, where

Rh

 N

the first identical closing contacts of the switches of the first rectangular matrix 4, the inputs of the first straight-through, -,

 the coal matrix 4 is combined in P p - 25 XL - - - Ec - Uf - K, the second one is the same switching contacts of the first direct switches. of the coal matrix 4, the P inputs of the switches of the first rectangular matrix 4 are connected to the P codes of the first 30 group of the model element block 6, P the outputs of the second group of the model element block 6 are connected to the P: inputs of the second rectangular matrix 5 of the switches, which are jg combine the same-name closure contacts of the switches in the corresponding P rows of the second rectangular matrix 5, the first same-name switching contacts of the switches 40 of the second rectangular matrix 5 are combined in M columns, are the outputs and the second rectangular matrix 5 and connected to the same outputs of the second triangular matrix of 3 45 keys, N inputs of the EMF setting of each model of a typical element are connected to N outputs of a group of sources 7 of constant voltage, first 2N measuring group of non-inverted QQ and inverted currents models and types of elements and the second N measuring group of inverted eg.

1.-matrix inductive meters of the circuit element

- the matrix of active coaxial circuit elements

-vector EMF element in ba.e.5

- the vector of dropping, for example, or the potential difference of the poles of an element of a chain of e;

vector of currents in the branch of the ment of the circuit in OE; f is the machine time, in mn seconds;

PR is the matrix of intsindencies, which encapsulates the internal connection of the branches of the current) of the type element;

-vector, the sum of the currents forming the poles of the electrical circuit in the e;

FP - vector of potentials of the circuit element in о.е

IP

to

zhenii, displaying the potential difference of the poles of the respective models of typical elements.

The synchronization unit 1 contains a power source 8 to which a pair is connected through the key 9 of the pair: 1 connected to the pairs

The following matrix equations correspond to the tric-chain:

, -,

UN PR; FR ,; one

PR.1, IP, Oh, where

Rh

 N

, -,

XL - - - Ец - Uf - К, g 0 5 Q

(1) (2 (3)

and.

1.5

-matrix of inductive parameters of an element of a circuit in an operating system;

- matrix of active resistances of circuit elements;

-vector EMF of the circuit element in v.e.5

- the vector of voltage drop or potential difference of the poles of the circuit element in the circuit;

the vector of currents in the branches of the circuit element in the operating system; f - machine time, in machine seconds;

OL is the matrix of incidents, reflecting the internal circuit of connection of the branches (windings) of a typical circuit element;

-vector, the sum of the currents of the branches that form the poles of the circuit elements in the core;

FP - the vector of the potentials of the poles of the circuit element in the IS;

IP

to

d

dc

- - symbol d4) fermentation.

The equations of the first Kirchhoff law (3) are solved with respect to the potentials of the poles by the method of non-explicit functions according to the equation

PRK

at

tr f r

Where

JU is the gain of the operational amplifier without feedback.

For most typical elements of an electrical circuit, the internal connection circuit of the pole arms remains unchanged. Then the matrix PR displays a rigid structure and does not contain any switches. Otherwise, the PR intsindency matrix, reflecting the internal circuit element circuit, is organized in the form of a rectangular matrix of switches.

The wiring diagram for typical elements in an electrical circuit is described by the following matrix equations:

P-1 0;

and

F.

or taking into account the organization of typical elements

riY.IP 0;

A

The outcome of these relations is the combination of models of typical elements.

P-1 nY

ETC

and

Wed PU FU

(five)

where n, n

t

ten

15

20

25

thirty

direct and transported intsindentation matrices describing both the internal circuitry of the element and the external circuitry of the connection of the elements; I is the vector of the fall of currents in the branches of an electrical circuit in a cu;

and is the voltage drop vector in the branches of the electrical circuit in the circuit; Ф - the vector of potentials of the electric circuit nodes in о. e .;

nv, PU matrices of combining poles of typical elements (multipoles) into nodes of a simulated circuit, directly and transported.

The separate description of the internal structure of the elements of an electrical circuit as a multipole and the structure of combining poles into nodes of a circuit are connected by the following matrix equation

PU

40

electrical circuit is described by the following detailed equations

 PU 1R about

ETC

fr

ETC

fr

The first square matrix of the switches corresponds to equation (4), and the second square matrix of the switches corresponds to equation (5).

The presence of switching elements in the mod.piraemoy electric circuit causes the formation of a matrix of connections

BUT.

P

X,

L,

where P, RL are the direct and transposed matrix of incins of j-dentiations of the switching subgraph, logical;

X | - is a diagonal matrix

state of switching elements, logical

ka;

E | - single matrix, logical.

Using the fact that the symmetry property of the matrix A and that the element A 25 (1,1) is always TRUE, you can limit your implementation to the upper triangular matrixes of keys 2 and 3, starting from the second column.

The device operates as follows 0.

The formation of the model of the electric circuit under study is carried out by switching the first 4 and second 5 rectangular switch arrays. With the help of these matrices, the necessary models of typical elements are included in the circuit model. In the block of models, typical elements are set correspondingly. The coefficients corresponding to the parameters, Q.a, with the help of a group of sources of 7 constant pressure are determined by the emf at the input of each model of a typical element only the circuit of the connection of the elements of the circuit is connected, since the internal circuit diagrams of the elements are already presented in their models.

All switching elements of the simulated electrical circuit are set with POM01CHI triangular matrixes of keys Q 2 and 3. To do this, in block 1 of synchronization, buttons 11 of their respective relays are closed. Then, the key 9 is closed, and therefore the windings of the relay 10 are energized, and the buttons 11 are closed. Due to this, the corresponding keys of the triangular matrixes of keys 2 and 3 are synchronously closed.

Q

Q

five

matrixes of keys 2 and 3 are turned on for parallel operation by operational amplifiers of block 6, which simulate the integration of nodes.

DP of studying a different switching state of the circuit under study are made to stop the decision and open the key 9, the synchronization unit 1, the corresponding switchings of the buttons 11, and again the closure of the key 9. The whole process repeats.

To change the composition and structure of the circuit under study, matrixes 4 and 5 are recommuted, as a result of which the necessary models of typical elements are introduced into the model and unnecessary are derived.

Due to the presence of ready-made standardized models of typical elements, the process of switching the models of elements is similar to the process of assembling the real circuit of the electric circuit under study.

Claims (1)

Invention Formula A device for modeling electric circuits containing a synchronization block, two triangular matrixes of keys, the first and second groups of outputs of the synchronization unit are connected respectively to the groups of control inputs of the keys of the first and second triangular coal matrices, the first identical closing contacts of the keys in the rows and the second of the same name switching  the contacts of the keys in the columns of the first and second triangular matrixes of keys, respectively, are combined, two rectangular switch matrices, a group of sources of DC voltage, a group of models of typical electric network elements, EMF task inputs of each model types. The electric network elements are connected to the output; By the groups of corresponding sources of DC voltage, the first identical closing contacts of the switches of the first rectangular matrix are connected in rows to each other and connected to the control inputs of the keys of the corresponding rows of the first triangular matrix of keys, the first identical switching contacts of the switches of the second rectangular matrix are connected in columns between . and connected to the control inputs of the keys corresponding to the columns of the second triangular matrix of keys, and so that, in order to rationalize the functionality by making it possible to measure the structure of the connection of typical electric circuit elements, the first group of model outputs of typical electric network elements of the group is connected to the second identical switching contacts of the switches of the first square matrix, the second group of standard model outputs elements of the electrical network of the subconnect group to the second of the same name lock 1-, each switch contacts in the same lines of the second right A solid matrite switch CH switch.