SU1341705A1 - Thyratron electric machine - Google Patents

Abstract

The invention relates to electrical engineering and can be used as an electric motor, converter, or generator of electrical energy, including using the phenomenon of turning conductivity. The purpose of the invention is reliability. A superconducting DC excitation winding connected to a voltage regulator is located on a stationary inductor, and a distributed T-phase AC winding located electrically connected to the output of an increased frequency inverter is located on the stator. 1 h, para. f-ly, 1 ill. with co

Description

113

The invention relates to electrical engineering, in particular to contactless electrical machines, and can be used in electric motors, converters or generators of electrical energy, including using the phenomenon of superconductivity.

The aim of the invention is to increase reliability.

The drawing shows schematically the device of the proposed machine.

On the additional stator of the machine there is a single-phase winding 1, and on the main multiphase winding 2 a multi-phase winding 3 is located on the rotor of the machine, which in the area of the winding 1 is made with the number of pole pairs P,.

Winding 1 can be made superconducting, then the additional stator and rotor can be made without magnetic conductor.

The winding is connected to a direct current network via a voltage regulator 4 controlled by a driver 5. The multiphase winding 2 of the AC stator is connected to the network through a high frequency inverter 6, which is also controlled by a driver 5. The rotor position sensor 7 through block 8 proportionality is connected to one of the inputs of the inverter 6; The output of the rotational speed sensor 10 is connected to the second input of the inverter b through another proportionality block 9. Between the two windings on the stator in a plane perpendicular to the axis of rotation, there is an annular electromagnetic screen 11.

Electric car in the engine mode works as follows.

When a signal is supplied from driver 5, the inverter 6 generates a high-frequency T-phase alternating voltage applied to the AC alternating current T-phase winding 2. The rotating magnetic field created by the winding 2 induces in the rotor winding 3 EMF, whose frequency is equal to

fj f, s, (1)

where f is the stator current frequency;

S - slip.

These machine elements convert a constant voltage into re17052

direct voltage in a contactless manner.

To ensure the normal operation of the second part of the machine (in the drawing of the right), it is necessary to ensure the required frequency and phase of the rotor current. This condition is ensured by the choice of the required slip value, which

d for a given mapping should be equal to

Pi

S

, +,

(2)

where P is the number of pairs of poles winding 1;

2 the number of pairs of poles of the winding 2, .. as well as the necessary phase of this voltage, which is provided by the rotor position sensor 7 and the proportionality unit 8 providing

the phase voltage required depending on the load of the machine. and connected to the inverter 6,

The required current frequency at the output of the inverter 6 is equal to

f bopsr + Pp, (3)

where n is the rotor speed, provided by frequency sensor 10

rotation and proportional block 9, ensuring the implementation of equalities4. (2) and (3).

Regulation of rotation frequency and provision of the required mechanical and

performance is achieved by adjusting the frequency and voltage value at the output of the inverter 6, as well as the voltage value at the output of voltage regulator 4 by means of the driver 5. When the load on the motor changes, the proportionality unit 8 automatically changes the phase of the voltage to the rotor.

The presence of an annular electromagnet of the screen 11 during the operation of the machine reduces the influence of the electromagnetic fields of direct and alternating current.

In the generator mode, when the rotor of the machine is rotated and iodine voltage is applied to the winding 1 in the winding 3 of the rotor, alternating voltage is induced. AC voltage is removed from the terminals of the multiphase winding 2 of the alternating voltage. A constant voltage can be obtained when the inverter 6 is switched to the rectifier mode. In this case, the load podklogo.

is connected to the power supply circuit of the inverter 6 (rectifier output).

A variable voltage variable in magnitude can be obtained by varying the magnitude of the DC voltage at the output of the regulator 4. The frequency of this voltage can be adjusted by varying the frequency of rotation of the drive motor.

Claims (1)

 Invention Formula 1. A fanless electric machine containing a rotor with a multi-phase short-circuited winding, a stator with a winding core connected to the output of the inverter, the control circuits of which are connected through the first functional converter with the output of the rotor position sensor, and the rotation frequency sensor whose output connected to the second input of the inverter, which is characterized by the fact that, in order to 417054 to increase reliability, it is equipped with an additional stator, rotor and DC winding, a DC winding is located on the additional stator, a multi-phase winding on the additional rotor mechanically connected to the main rotor, the number of pairs of poles ten P, to which the number of pairs of poles of the R. winding of the core is related by the ratio 15 Pi S where S is the amount of slip in the machine operating mode. 2, the machine according to claim 1, characterized in that it is provided with an electromagnetic shield, the direct current winding is made superconducting, and the additional stator is separated from the main stator by an electromagnetic shield. g and Compiled A, Santalov Editor T, Parfenova Tehred M. Khodanych Corrector. Shekmar Order 4443/56 Circulation 659Subscription VNIIPI USSR State Committee on cases of declarations and discoveries 113035, Moscow, Zh-35, Raushsk nab. d. 4/5 Production and printing company, Uzhgorod, st. Project, 4