Reconfigurable single-phase digital variable-frequency generator

Abstract

The invention discloses a reconfigurable single-phase digital variable-frequency generator comprising an editable phase signal generator, a plurality of single-phase frequency converters and an independent power supply generator connected with the single-phase frequency converters. The single-phase frequency converters consist of phase synchronizers, phase-locked sine wave signal generators, automatic gain control modules, SPWM modulation modules, isolation drive modules and H-bridge output modules that are connected successively. The editable phase signal generator is connected to the phase synchronizer of each single-phase frequency converter. The output terminals of the H-bridge output modules of the plurality of single-phase frequency converters are connected in a one of manners of series connection, parallel connection, star-shaped connection and annular connection. According to the reconfigurable single-phase digital variable-frequency generator, single-phase frequency conversion reconfiguration of the independent power supply generator is realized by the single-phase frequency converters; the output mode is changed; power capacity extension is realized; and any power demand application can be realized.

Description

technical field [0001] The invention relates to a power supply, in particular to a reconfigurable single-phase digital variable frequency generator. Background technique [0002] In the application of independent power generators, the generator that can provide the power is often selected according to the rated power of the required power supply load. When the rated power of the required power supply load is small, a generator with high power or its corresponding power can be used to supply power to the load; when the required power supply load has a large rated power, only a generator with a higher power supply power can be selected to supply power for the load. However, in the application process of most generators, the total power consumption will increase due to the increase of the load, or there will be a single load with large power in the application process, which further requires high-power power supply; or the situation that multi-phase power supply is required due...

AI Technical Summary

Problems solved by technology

However, in the application process of most generators, the total power consumption will increase due to the increase in load or there will be a separate load with large power in the application process, which further requires high-power power supply; or the situation that multi-phase power supply is required due to load requirements

For the above situations, the existing practice is to purchase a generator with higher power or replace the generator with the same number of output phases as the load, which greatly increases the purchase cost of power supply equipment

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