EXTERNAL POWER SUPPLY SYSTEM

摘要

External power supply system includes an electrical storage device, motor, inverter that drives the motor by using electric power of the electrical storage device, and a control device controls the inverter. The inverter includes a first and second switching elements connected in series with each other between a positive and negative electrode power supply lines. A connection-node of the first and second switching elements is connected to one corresponding stator coil. The control device inputs signals to the inverter to drive the inverter such that voltage at the neutral point becomes a predetermined value. The control device compensates for signals in dead time period, the period in which off-state signals are supplied to the first and second switching elements, on the basis of current that is input from the connection-node to one corresponding stator coil or output from one corresponding stator coil to the connection-node while an engine is driven.

主权项

1. An external power supply system comprising:
an electrical storage device; a motor including stator coils connected to a neutral point, the neutral point being an output node from which electric power from the electrical storage device is supplied to an external device; an inverter configured to drive the motor by using the electric power of the electrical storage device, the inverter including a first switching element and a second switching element connected in series with each other between a positive electrode power supply line and a negative electrode power supply line, a connection node of the first switching element and the second switching element being connected to a corresponding one of the stator coils; and a control unit configured to control the inverter, the control unit being configured to input driving signals to the inverter so as to drive the inverter such that a voltage at the neutral point becomes a predetermined value, the control unit being configured to compensate for the driving signals in a dead time period, which is a period in which off-state driving signals are supplied to the first switching element and the second switching element, on the basis of a current that is input from the connection node to the corresponding one of the stator coils or output from the corresponding one of the stator coils to the connection node while an engine is driven.