Inventor
WEIBELZAHL MANFRED
10 patents
Patents
10 patentsUS4322766AMar 30, 1982
Monitoring device for the capacitor battery of a d-c filter circuit
SIEMENS AG24 citations81
US4837671AJun 6, 1989
State signal formation for indicating the transition into the bypass mode of operation in an apparatus for high-voltage D-C transmission
SIEMENS AG21 citations75
US4888674ADec 19, 1989
Method and apparatus for decoupling the active and reactive power control for a high voltage DC transmission line coupling two networks
SIEMENS AG11 citations72
US4685044AAug 4, 1987
Method and apparatus for suppressing resonance phenomena in the A-C network on the inverter side of a high voltage D-C transmission system
SIEMENS AG16 citations72
US4008428AFeb 15, 1977
Circuit arrangement with a number of frequency converters, particularly Y-connected direct frequency converters
SIEMENS AG8 citations72
US3942091AMar 2, 1976
Method and apparatus for operating a converter fed rotating field machine
SIEMENS AG8 citations72
US4074348AFeb 14, 1978
Circuit arrangement with a number of cycloconverters, particularly direct cycloconverters in y-connection
SIEMENS AG9 citations71
US4309749AJan 5, 1982
Circuit having improved firing angle symmetry for ignition pulses in the control of a multipulse rectifier
SIEMENS AG8 citations67
US4205368AMay 27, 1980
Method for the transmission of DC current between at least one rectifier station and several inverter stations
SIEMENS AG16 citations65
US4326230AApr 20, 1982
Circuit for monitoring the voltage stress of a capacitor
SIEMENS AG4 citations60