Frequency converter and electricity grid synchronization gapless switching control system
The utility model relates to a frequency converter and electricity grid synchronization gapless switching control system. Main technical characteristics of the system are that the system comprises a frequency converter, an electric reactor L, a contactor KM1, a contactor KM2 and an alternating curre...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to a frequency converter and electricity grid synchronization gapless switching control system. Main technical characteristics of the system are that the system comprises a frequency converter, an electric reactor L, a contactor KM1, a contactor KM2 and an alternating current motor, a three-phase alternating current inlet line is respectively connected with an input end of the frequency converter and the contactor KM2, an output end of the frequency converter is connected with an input end of the electric reactor L, an output end of the electric reactor L is connected with the contactor KM1, and output ends of the contactor KM1 and the contactor KM2 are connected with the alternating current motor M. The frequency converter and electricity grid synchronization gapless switching control system is reasonable in design, a switching function with no disturbance of a load, no impact of motor current and no gap of power supply voltage between frequency converter power supply and electricit |
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