MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517051818 A) filed by Mitsubishi Electric Corporation, Tokyo, on May 29, for 'propulsion control device.'
Inventor(s) include Kojiya, Tomohiro; and Otsubo, Michio.
The application for the patent was published on June 13, under issue no. 24/2025.
According to the abstract released by the Intellectual Property India: "This propulsion control device (80) comprises: a filter capacitor (6) that smoothes an overhead line voltage applied from an overhead line (1); an inverter (7) which is connected in parallel with the filter capacitor (6) and which applies a variable-voltage and variable-frequency AC voltage to a propulsion motor (8) mounted on a railway vehicle, and a control unit (12) that controls the inverter (7) on the basis of the overhead line voltage and the filter capacitor voltage. When the overhead line voltage exceeds a first threshold value during a regeneration operation of the propulsion motor (8), the control unit (12) carries out regenerative power control to lower, to below a command voltage, the motor applied voltage to be applied to the propulsion motor (8)."
The patent application was internationally filed on Jan. 05, 2023, under International application No.PCT/JP2023/000093.
Disclaimer: Curated by HT Syndication.
