Power converters supplying: compatibility problems between special application and disturbance sources

In this paper, the effects of nonlinear loads on power distribution systems are discussed by analyzing power system behaviour; in particular, the voltage notch caused by static power converters are analyzed. These evaluations can be useful for an optimization of the overall design of power systems, from component types and rating choices to circuit sizing. A more general optimal design of power systems in the presence of nonlinear loads requires the configuration of a specific power distribution system with characteristics of high efficiency. The purpose of this paper is to introduce a new approach to the evaluation of the lower performance of electrical power systems caused by the presence of nonlinear loads such as static power converters. Such an approach should be suitable both in the design of new power systems, and in the upgrading of existing networks.