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PARALLEL INVERTER SYSTEM, AND SHUTDOWN CONTROL METHOD AND SHUTDOWN CONTROL DEVICE FOR PARALLEL INVERTER SYSTEM
PARALLEL INVERTER SYSTEM, AND SHUTDOWN CONTROL METHOD AND SHUTDOWN CONTROL DEVICE FOR PARALLEL INVERTER SYSTEM
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机译：并联逆变器系统以及并联逆变器系统的停机控制方法和停机控制装置
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摘要
Provided are a parallel inverter system, and a shutdown control method and a shutdown control device for the parallel inverter system. A shutdown instruction is determined and responded according to a level of the shutdown instruction. The shutdown instruction is determined to be an emergency shutdown instruction under certain emergency shutdown conditions, and a driving signal for the power switch devices of the inverter apparatus is needed to be instantly locked out. The shutdown instruction is determined to be a normal shutdown instruction under non-emergency shutdown conditions, a switch-off signal is transmitted to alternating-current switches connected to the inverter apparatus to be shut down, states of the alternating-current switches connected to the inverter apparatus to be shut down are detected, the driving signal for the power switch devices of the inverter apparatus to be shut down is instantly locked out in a case that the alternating-current switches are switched off. Therefore, the stable and safe operation of the parallel inverter system can be guaranteed maximally, and hazards due to circular currents can be prevented maximally.
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