Mathematical modeling and simulation of transients in power distribution systems with valve devices and dynamic loading

Power distribution systems (PDS) with powerful semiconductor devices characterized by significant nonlinearity, create a problem of electromagnetic compatibility of such devices with feeder network [A.M. Gole et al., 1997]. This problem becomes significantly more complicated in PDS with low levels of fault currents and with dynamic loads, consisting the synchronous and/or induction motors connected through AC/DC/AC inverters (or AC/AC converters). Therefore, solution of electromagnetic inverters and converters is an important scientific and practical task [L. Tang et al., 1996]. The paper includes fundamental theoretical and practical results of mathematical and software components development for Automated System of Scientific Research (ASSR).