| Abstract |
Switching converters coupled with input filters, usually adopted to reduce input current distortion, can become
unstable according to the operating conditions and the converter topology.
In this paper the stability of a system composed by a matrix converter with controlled output voltage, an
input filter and a linear passive load is analyzed by means of a linearized model that takes into account the
effects related to the digital implementation. The analytical approach leads to general relationships showing
that the system becomes unstable as the voltage transfer ratio exceeds a limit value related to the supply,
filter and load parameters, and delay effects introduced by the digital controller. |
