PCT No. PCT/DE95/00835 Sec. 371 Date Mar. 27, 1997 Sec. 102(e) Date Mar. 27, 1997 PCT Filed Jun. 28, 1995 PCT Pub. No. WO96/02085 PCT Pub. Date Jan. 25, 1996To improve operation when there are dynamic load requirements with a direct a.c. converter with a load connected to it in open circuit, the direct a.c. converter is controlled briefly such that the voltage vector resulting from the geometric sum of the phase voltages is increased while the phase relation remains the same.
展开▼
