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US09571023B2 Synchronizing an inverter with an alternating voltage source 有权
逆变器与交流电压源同步

Synchronizing an inverter with an alternating voltage source
Abstract:
A method and device are disclosed for synchronizing an inverter with an alternating voltage source. The method includes measuring a current generated by the alternating voltage source and flowing through diodes of the inverter, determining a phase angle and angular velocity relating to the alternating voltage source from the measured current for enabling synchronization between the inverter and the alternating voltage source, and starting modulation of the inverter according to the obtained phase angle and angular velocity.
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