Inverter circuit topological structure for frequency conversion and speed regulation of two-phase alternating current motor
The utility model provides an inverter circuit topological structure for frequency conversion and speed regulation of a two-phase AC motor, which comprises a power supply, the two-phase AC motor, an inverter circuit and a control circuit, and is characterized in that the inverter circuit comprises f...
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Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides an inverter circuit topological structure for frequency conversion and speed regulation of a two-phase AC motor, which comprises a power supply, the two-phase AC motor, an inverter circuit and a control circuit, and is characterized in that the inverter circuit comprises four switch transistor units which are respectively used for two groups of bridge arms; the power supply is connected with a direct-current bus and further provided with a midpoint potential leading-out end, the midpoint potential leading-out end is used for forming a UV two-phase loop of the motor, and the U1 end of a U-phase winding and the V1 end of a V-phase winding of the two-phase alternating-current motor are connected into a U-phase bridge arm output end and a V-phase bridge arm output end respectively. According to the utility model, the frequency conversion speed regulation can be carried out on the two-phase alternating current motor, the structure is simple, and the number of devices is reduced.
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