ELECTRICALLY-DRIVEN WORK MACHINE

An electrically-driven work machine can exchange electric power between a storage battery and an electric power system or between the storage battery and a load by utilizing an inverter equipped therein. When electric power is exchanged between the storage battery BT and the electric power system PW...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MOTEGI SHINICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	An electrically-driven work machine can exchange electric power between a storage battery and an electric power system or between the storage battery and a load by utilizing an inverter equipped therein. When electric power is exchanged between the storage battery BT and the electric power system PW or the load, the connection between the inverter INV and the storage battery BT is disconnected by an on-off switch S0. Further, by change-over relays RY1 to RY3, one of AC phases from the inverter INV is connected to a wire LC1 via a DC inductor Ldc, and the other two phases are connected to the electric power system PW or the load via AC inductors Lac. When a motor Ma is driven by the storage battery, the on-off switch S0 provides a connection between the anode or cathode of the inverter and the storage battery BT.