H - Electricity – 02 – M
Patent
H - Electricity
02
M
321/24, 321/43
H02M 5/45 (2006.01)
Patent
CA 1101057
ABSTRACT OF THE DISCLOSURE A power converter comprises a plurality of electrical valve bridges, each of the plurality of electrical valve bridges having a plurality of electrical valves, a pair of DC input nodes, and a plurality of AC output nodes respectively connected to a plurality of AC input terminals of an AC load, each of the plurality of electrical valves being connected between one of the DC input nodes and one of the AC output nodes; a plurality of DC power control means, each of the plurality of DC power control means having a pair of pulsating output terminals connected to the pair of DC input nodes of each of the plurality of electrical valve bridges through one pair of a plurality of pairs of pulsating DC lines; pulsating direct currents being fed in different phase relation to the input nodes of the electrical valve bridges through the pulsating DC lines from the DC power control means and controlled by the DC power control means in synchronous relation with the control of the electrical valves; and a common DC line included in the plurality of said DC power control means to carry a current which is a combination of the pulsating direct currents; whereby the pulsating direct currents are converted to alternating currents for feeding the alternating currents to the AC load, and commutation of the electrical valves is assisted by pulsation of the pulsating direct currents.
360329
Marks & Clerk
Mitsubishi Denki Kabushiki Kaisha
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