ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,515, issued on July 14, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).
"Power conversion device and control method thereof" was invented by Yi Du (Shanghai), Xinyu Yu (Shanghai), Kai Xin (Shanghai) and Yunfeng Liu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Examples of power conversion devices and control methods are described. In one example, a power conversion device includes direct current buses, an inverter circuit, and a controller. After the power conversion device switches from a high voltage ride through state to a low voltage ride through state, the controller controls a change rate of an output a...