MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617097044 A) filed by Hitachi Industrial Equipment Systems Co. , Ltd. on August 11, 2026, for Power Conversion Device.
Inventors include Yoshida, Naomitsu; Kikuchi, Akira; and Matsunaga, Shunsuke.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: The present invention provides a power conversion device capable of continuing operation even if instantaneous voltage drop due to a system accident occurs during interconnection operation. To do so, a first voltage command generation unit (307) generates a first voltage command V1 from a reactive power command Qo and reactive power Qout obtained by measurement and calculation. A current command generation unit (308) generates a current command I* from a measurement voltage Vout and the first voltage command V1. A current command restriction unit (309) applies a constraint to and outputs the current command I*. A second voltage command generation unit (310) generates a second voltage command V* from the constrained current command and a measurement current Iout. A control circuit (3) controls a power conversion circuit (2) on the basis of the second voltage command V*.
Disclaimer: Curated by HT Syndication.
