| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an elevator control device capable of not only prolonging the lifetime of an electric storage device consisting of a plurality of batteries while taking the situations of the individual batteries into consideration but also eliminating energy shortage of the electric storage device used at the time of power failure. <P>SOLUTION: The elevator control device includes a next-run operation judging part 42 which takes out a select signal in association with the next-run power running and regenerative operations from the speed direction from a speed pattern of a speed command issuing part 32 and a torque command value of a torque command judging part 36 and sends it to a voltage command device 56a. From a voltage variation monitoring part 55b, the eccentricity in the voltage decrease of batteries 54a-54n constituting the electric storage device 54 from one another and the accumulated energy of the electric storage device are taken out and alike sent out to the voltage command device 56a. The voltage command device 56a emits the prescribed voltage command value in conformity to the select signal given by the next-run operation judging part 42 when the monitoring result shows a small eccentricity and there is sufficient accumulated energy despite power failure, but emits a prescribed voltage command value of lower order than the prescribed voltage command value conforming to the select signal of the next-run operation judging part 42 when the monitoring result exhibits a large eccentricity or when there is less accumulated energy so as to lessen the discharge of the accumulated energy from the electric storage device 54 as provision for occurrence of a power failure. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
