Inventor
RENG LEONHARD
DE9 patents
Patents
9 patentsUS4338559AJul 6, 1982
Load state control for an asynchronous machine fed by a converter
SIEMENS AG35 citations91
US4764712AAug 16, 1988
Method and apparatus for operating a field-oriented rotating-field machine supplied by a controlled converter
SIEMENS AG24 citations81
US4423367ADec 27, 1983
Device for determining the parameter values for stator resistance, principal inductance and leakage inductance of an asynchronous machine
SIEMENS AG24 citations81
US4475074AOct 2, 1984
Apparatus for determining the common frequency of two independently variable electrical a-c variables, especially in a rotating-field machine
SIEMENS AG10 citations72
US5442265AAug 15, 1995
Method and apparatus for improving the running characteristics of a wheel block bogie
SIEMENS AG2 citations61
US5416707AMay 16, 1995
Method and apparatus for eliminating an inclination of a wheel-block bogie or undercarriage
SIEMENS AG4 citations61
US4988940AJan 29, 1991
Method for the formation of the actual load angle value for a field-oriented regulated rotary field machine and corresponding regulation
SIEMENS AG4 citations61
US4906912AMar 6, 1990
Apparatus for controlling the load angle of a converter
SIEMENS AG2 citations61
US4511978AApr 16, 1985
Device for determining a parameter signal for a voltage-fed load
SIEMENS AG5 citations61