DC PLC PV rapid shutdown device circuit based on SunSpec communication protocol

A PV module, which includes PV+ and PV− output ports. An output capacitor Cout is connected to PV+ or PV− port through an electric switch. One end of a power inductor L1 is connected to OUT−, and the other end is grounded. The power inductor L1 is connected with a resonant capacitor C1 and an impeda...

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Bibliographische Detailangaben
Hauptverfasser:	Wang, Weihui, Deng, Xiangchun
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A PV module, which includes PV+ and PV− output ports. An output capacitor Cout is connected to PV+ or PV− port through an electric switch. One end of a power inductor L1 is connected to OUT−, and the other end is grounded. The power inductor L1 is connected with a resonant capacitor C1 and an impedance resistor R2 in parallel. One end of a blocking capacitor C2 is used as the PLC+ port, one end of a blocking capacitor C3 is used as the PLC− port, and signal sources are connected to OUT+ and OUT− in parallel and send "Keep Alive" signals based on SunSpec communication protocol. PLC+ port and PLC− port are connected to a signal coupling input port of a control IC, and the control IC controls the electric switch. When the signal is decoded and extracted, the electric switch will remain on, otherwise it will be off.