Actas de congresos
Discrete-time H∞ Control Of Pwm Inverters: Experimental Results Complying With Iec 62040-3
Registro en:
9781424494736
Proceedings - Ieee International Symposium On Circuits And Systems. , v. , n. , p. 1608 - 1611, 2011.
2714310
10.1109/ISCAS.2011.5937886
2-s2.0-79960856659
Autor
Ribas S.P.
Montagner V.F.
Pinheiro H.
Oliveira R.C.L.F.
Institución
Resumen
This paper aims on the design and experimental validation of a discrete-time H∞ control for single phase PWM inverters with linear and nonlinear loads, providing results complying with IEC62040-3 Standard for uninterruptible power supplies. This compliance ensures sinusoidal voltages of high quality for critical loads. The H∞ control used here is designed by means of linear matrix inequality conditions including constraints on the norm of the control signal, in order to ensure high performance with a feasible action of control, avoiding saturation and high spent of energy from the actuator. Additionally, the controller is implemented in a digital signal processor under constraints as delay in the application of the control signal and limitations on precision and dynamic range of data representation. The control action is a linear combination of the plant states and the states of a controller based on the internal model principle, allowing to track sinusoidal reference signals in the presence of loads with harmonics. The main contribution of the paper is the experimental implementation of this control technique taking into account all the above constraints and producing results complying with IEC 62040-3 Standard. © 2011 IEEE.
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