Patent ID: 8364459
Filing Date: 2013-01-29
Classification: G05B,H02P

Abstract:
1. A method for estimating states of a power electronic system having a converter circuit, the method comprising: (a) determining, by a computing device having a processor, output variable vectors y(k) for sampling times k=−N+1 to k=0, where N is a predefinable sampling horizon; (b) determining, by the processor, manipulated variable vectors u(k) for the sampling times k=−N+1 to k=0; (c) determining a first system model function f(x(k), u(k)) at the sampling time k for describing the power electronic system, which function is dependent on a manipulated variable vector u(k) and a system state vector x(k) at the sampling time k; (d) determining a second system model function g(x(k), u(k)) at the sampling time k for describing the power electronic system, which function is dependent on the manipulated variable vector u(k) and the system state vector x(k) at the sampling time k, the system state vector x(k) being estimated at the sampling time k=0 by: (f) selecting the system state vector x(k) at the sampling time k=0 to estimate a state of the power electronic system, wherein