A Novel DC Current Injection Suppression Method for Three-Phase Grid-Connected Inverter Without the Isolation Transformer.
IEEE Transactions on Industrial Electronics(2018)
摘要
Due to current sensor errors, tolerance of power switching devices, and asymmetry of PWM gating driving pulses, grid-connected inverters without isolation transformer usually have certain amount of dc components injected to the ac grid. Many efforts, such as using a blocking capacitor, a current dc component feedback control, and a voltage dc component feedback control have been introduced to try ...
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关键词
Inverters,Voltage control,Circuit faults,Capacitors,Feedback control,Standards,Current control
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