Reconfigurable single-phase digital variable-frequency generator

Abstract

The invention discloses a reconfigurable single-phase digital variable-frequency generator. The reconfigurable single-phase digital variable-frequency generator comprises a programmable phase signal generator, a plurality of single-phase inverters and independent power supply generators connected with the single-phase inverters. Each single-phase inverter comprises a phase synchronizer, a sine wave signal generator with a phase lock, an automatic gain control module, an SPWM module, an isolation drive module and an H-bridge output module which are connected in sequence. The programmable phase signal generator is connected with the phase synchronizers of all the single-phase inverters, and the connection mode of the output ends of the H-bridge output modules of the single-phase inverters is any one of a serial connection mode, a parallel connection mode, a starlike connection mode and a ringlike connection mode. According to the reconfigurable single-phase digital variable-frequency generator, single-phase variable-frequency reconfiguration is carried out on the independent power supply generators through the single-phase inverters to change the output mode and achieve power capacity expansion so that the requirement for any power in application can be met.

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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