An electrical substation that transforms AC voltage to DC voltage is configurable between a current-source mode for charging batteries of a stationary work machine and a voltage-source mode for powering motors of a moving work machine. The substation recei...

A system includes an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a power module, the power module including a thermistor assembly, the thermistor assembly including: a conductive layer...

This power conversion device includes: a cooler having a cooling surface; one or a plurality of power modules and thermally connected to the cooling surface; a board placed with a space from the power module; and a board-retention member, the board-retenti...

An object of the invention is to suppress that resistance against vibrations is reduced, while reducing the number of components. A power conversion device according to the present invention includes: a power semiconductor module that converts a DC current...