| 摘要 |
<p>A control apparatus for an electric railcar includes an inverter (8) that exchanges power with an AC rotating machine (7), a filter capacitor (1) connected in parallel to a DC side of the inverter (8), a filter reactor provided between the filter capacitor and an overhead line; an overhead line voltage measuring instrument that measures a voltage value of the overhead line; a voltage increase detection unit (11) that senses an amount of voltage increase Eser occurring when, with an overhead line voltage to be measured using the overhead line voltage measuring instrument (10) being supplied, the overhead line voltage Es goes beyond a reference voltage value and rises at a rate of increase equal to or higher than a predetermined rate; a correction torque command value calculation unit (12) that calculates a correction torque command value PTR1 that is corrected so that a torque command value PTR to be received from an external unit becomes smaller for a predetermined time elapsing after the voltage increase detection unit has sensed during regeneration operation of the inverter an amount of voltage increase Eser more than a predetermined range; and a vector control unit (9) that controls the inverter (8) so that the AC rotating machine (7) develops torque coincident with the correction torque command value PTR1.</p> |
