Fremgangsmåte for å opprettholde en likespenning ved inngangen til en DC/AC omformer, opptaksmedium for fremgangsmåten og elektrisk kjøretøy

摘要

The method involves magnetizing an asynchronous motor using a DC voltage present in a DC supply bus. The motor is operated as an AC voltage generator and a DC-AC converter is operated as an AC voltage rectifier for recharging the bus with DC voltage. The converter is stopped when the DC voltage of the bus attains a high threshold. The converter is maintained at stop condition until DC voltage of the bus remains greater than a minimum DC voltage for the magnetization of the motor, before returning to the magnetization of the motor. Independent claims are also included for the following: (1) an information recording medium comprises instructions for executing a DC voltage maintaining method (2) an electric vehicle.