Title :
A novel dissipativity-based controller design for DC/AC converter in uninterruptible power supply
Author :
Irani, A. ; Sojoodi, M. ; Mohamadian, M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
Abstract :
This paper addresses a dissipative-based controller design approach for a single phase DC to AC converter with output LC filter. We derive the state space model of the inverter by considering load as an exogenous disturbance input modeled as current source in parallel with an uncertain linear load. Based on norm-bounded linear differential inclusion (NLDI) notation, D-stability, and linear matrix inequality (LMI) techniques, sufficient conditions are derived to design the robust state feedback aiming for performance improvement. Also, according to the internal model principle, a resonant controller is used to remove the steady state error. Simulation results show the efficiency of proposed method. Furthermore the output dynamic performance of the inverter strongly satisfies the IEC62040-3 and IEEE 1547 standards.
Keywords :
DC-AC power convertors; controllers; linear differential equations; linear matrix inequalities; power filters; uninterruptible power supplies; D-stability; DC/AC converter; current source; dissipativity-based controller design; exogenous disturbance input; linear matrix inequality; norm-bounded linear differential inclusion notation; output LC filter; resonant controller; robust state feedback; state space model; uncertain linear load; uninterruptible power supply; Capacitance; Inductance; Standards; Switches; D-stability; Inverter; Linear Matrix Inequality (LMI); Norm-Bound Linear Differential Inclusion; Uncertainty; dissipative system;
Conference_Titel :
Power Electronics, Drives Systems & Technologies Conference (PEDSTC), 2015 6th
Conference_Location :
Tehran
Print_ISBN :
978-1-4799-7652-2
DOI :
10.1109/PEDSTC.2015.7093330
