| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device for controlling an energy storage of an electric rolling stock combining a step-up/down chopper and an electric capacitor and being capable of securing a power obtaining a power running even at a low speed to a main circuit while enabling a function as a sufficient high-voltage auxiliary power supply to an auxiliary circuit, and to provide a method for controlling the energy storage. <P>SOLUTION: The device for controlling the energy storage of the electric rolling stock changes over a normal traveling state selecting the power from a stringing and an emergency traveling state selecting the power from the electric capacitor. An input and output from the step-up/down chopper charging and discharging electricity to and from the electric capacitor are connected between the output side of a high resistance supplied with the power from the stringing and the input for a CVCF inverter for the auxiliary circuit, and conducts a step-down operation under the normal traveling state and conducts a step-up operation under the emergency traveling state. A contactor is mounted so as to introduce the power from the stringing to the input side of a VVVF inverter for the main circuit at normal traveling, and so as to introduce the power for the electric capacitor to the input side of the VVVF inverter in emergency traveling. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
