SU424308A1 - POWER SUPPLY FOR A GROUP OF ULTIMATE CONSUMERS - Google Patents

Description

one

This invention relates to the field of electrical engineering.

Sources of thread are known for a group of pulsed consumers consisting of a multiphase non-temporary current source, the phase windings of which are an interchange circuit for a group of parallel-connected channels, each multiphase rectifier with a capacitor connected to it and connected to a control system synchronized with an offset switch. current. However, the phase currents of such sources are sharply non-sinusoidal in nature, and in this case they can contain higher and lower harmonics of great magnitude, as well as constant components that significantly impair the energy performance of the power source.

In order to improve the energy indicators of the source at the frequency of the bits of each tip capacitor, the frequency ratio of the multiphase source is divided by the number of channels, in the proposed source, each phase o6iii, ei is charged for all channels and each phase of the channels themselves , a state of series-connected throttles and a capacitor. The ratio of the throttle and capacitor parameters is chosen so that the impedance of the charging element of each phase is pronounced for all the channels of the circuit at the frequency of the alternating current source is inductive, and the resistance of the charging element of the phases of each channel is capacitive.

In the drawing, the given nrpspnialnaya scheme of the described source nntann for the case of three phases and four parallel load channels.

The power source contains a three-phase source of 1 psmereynogo current, droplets of 2 s with 1HT XL and capacitors 3 with resistance Xsd - included in the high price, chokes 4 with resistance. LH / ,. and co-capacitors 5 with matched r. included in each of the parallel channels, rectifiers 6 channels. accumulators, 1 capacitors 7. discharges to a non-pulse load 8. n block 9 discharge control.

11 accumulator Po1 co-distributors 7 are periodically charged through PCs 6 from PS) P-: a 1 nere.: An elongated current. The charge currents are formed by the 15 phases of the common charge chain .1I elements 2, 3, and in the channel phases the charge elements 4.5, and

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Due to this, constant components are completely eliminated in the phase currents and the higher and lower harmonics of the current are largely suppressed. The energy accumulated in the capacitors 7 is periodically realized in the discharge devices 8, and the discharge moments are set by the control unit 9, providing the necessary frequency of the bits, shifting them in time, synchronizing with the source of the alternating current. We propose that my power source is polyol e not only to improve the forgl current curve, to obtain a coeffi cient coefficient for it. close to the unit. The subject of the invention The power source for the group X consumers, containing a multi-phase AC source, the phase windings of which are a common circuit for a group of parallel channels connected to each other, each of which contains a multi-phase rectifier with an accumulative memory controller and a control system connected to it: Kz1 rovapuyuyu with the source and the alternating current, different bodies, that, with the aim of improving its energy performance, the frequency of the bits of each accumulative battery, less t delemnogo (} С |) az11ogo source n ;; ;: flooded, and each phase of the OPP1, the length of the ucini, and each phase of the keys themselves are the charge element, the state and (1s; 1 units (} of the gate |; Io connection) of the Dros condenser, the resistance of the charge element of each phase for all the channels on the frequency of the alternating current source is of an inductive nature, and the resistance of the charge element of the phases of each drop is of a maximal character.