INVESTIGADORES
BOTTERON Fernando
artículos
Título:
A Three-Phase UPS That Complies With the Standard IEC 62040-3
Autor/es:
FERNANDO BOTTERÓN AND HUMBERTO PINHEIRO
Revista:
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Editorial:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Referencias:
Año: 2007 vol. 54 p. 2120 - 2136
ISSN:
0278-0046
Resumen:
This paper proposes a down-sampled discrete-time
internal-model-based controller in the synchronous reference
frame with a reduced number of poles. This controller is suitable
for three-phase pulsewidth modulation inverters with output
transformer for double-conversion uninterruptible power supply
applications. It is demonstrated that the use of a down-sampled
rate and fewer poles in the internal model results in a number
of benefits, among which are the following: 1) improvement of
the transient response; 2) increase of the stability margin of
the closed-loop system; 3) a straightforward implementation in
fixed-point digital signal processor (DSP) and microcontroller
implementation as well as a reduction of the required memory
space; and 4) a simple solution for the saturation of the
output transformer. As a result, it is possible to obtain output
voltages with reduced total harmonic distortion while ensuring
good transient performance for both linear and nonlinear loads.
To confirm the advantages claimed for the proposed synchronous
reference dq frame internal-model-based controller and to
demonstrate the steady-state and transient performance under the
test conditions of the International Electrotechnical Commission
Standard 62040-3, the experimental results from a 10-kVA
space-vector-modulated three-phase inverter, which is fully controlled
by a DSP TMS320F241, are presented.