Title :
Characteristics evaluation of a H??? loop-shaping controller for a single-phase PV system
Author :
Chowdhury, M.A. ; Mahmud, M.A.
Author_Institution :
Fac. of Eng., Comput. & Sci., Swinburne Univ. of Technol., Kuching, Malaysia
Abstract :
This paper presents a H∞ loop-shaping controller for regulating the switching signal of the inverter connected with a single-phase photovoltaic (PV) system. To facilitate the control design, the system is represented in terms of state space realization with uncertainties. The controller design involves achieving proper loop shapes through the choice of the proper weighting functions. A H∞ synthesis is performed to achieve a controller, whose order is reduced by Henkel-norm method. Simulations are carried out to evaluate the characteristics of the controller under parametric uncertainties.
Keywords :
H∞ control; invertors; photovoltaic power systems; power system control; Henkel-norm method; controller design; inverter; loop-shaping controller; single-phase PV system; single-phase photovoltaic system; state space realization; switching signal; Aerospace electronics; Control systems; Inverters; Pulse width modulation; Robustness; Sensitivity; Uncertainty; H??? loop-shaping control; robust stability; single-phase photovoltaic system; state space realization; structured uncertainty;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2014 IEEE PES Asia-Pacific
DOI :
10.1109/APPEEC.2014.7066115
