Power conversion device using a wave propagation medium and operating method thereof

摘要

The present solution relates operation of a power conversion device (200, 500). A first gate (205, 505) is operated (901) to provide a voltage pulse (309,609) travelling from an input (201,501) to a wave propagation medium (105) through the first gate (205,505). The voltage pulse has duration (307,607) less than the propagation time through the medium (105) to one end of the medium (105) and back to the input (201,501). The pulse generates a reflected wave. The first gate (205,505) is operated (902) periodically providing a voltage pulse in synchronization with the reflected wave to accumulate the reflected wave travelling in the medium (105), performing the accumulation through an accumulation interval (303,603). A second gate (207,507) is operated (903) periodically to provide a discharge pulse (312,612) in synchronization with the reflected wave to discharge the wave travelling in the medium (105), performing the discharge through a discharge interval (310,610).

主权项

1. A method for operating a power conversion device, the power conversion device comprising at least one electrical input interface, at least a first electrical gate and a second electrical gate, at least one electrical wave propagation medium, and at least one electrical output interface connectable to a load; the electrical input interface, the first gate, the second gate, the electrical wave propagation medium, and the electrical output interface together forming an electric circuit, the method comprising:
operating the first gate to switch to an active state so as to provide at least one voltage pulse travelling from the electrical input interface to the electrical wave propagation medium through the first gate; the at least one voltage pulse having a time duration less than two times a wave propagation time through the electrical wave propagation medium; the at least one voltage pulse being reflected at one end of the electrical wave propagation medium; operating the first gate to periodically switch to an active state providing at least one accumulation voltage pulse in synchronization with the at least one reflected electrical wave, so as to accumulate the reflected electrical wave travelling in the electrical wave propagation medium through an accumulation sub sampling interval; operating the second gate to periodically switch to an active state so as to provide at least one discharge voltage pulse in synchronization with the at least one reflected electrical wave, so as to discharge the electrical wave travelling in the electrical wave propagation medium through a discharge sub sampling interval.