Title :
Design and analysis of controller for three-phase UPS system
Author :
Karthikeyan, S.S. ; Kumar, R. Senthil
Author_Institution :
Dept. of Electr. & Electron. Eng., Anna Univ., Chennai, India
Abstract :
A method of high performance output voltage control of four-wire inverter based three-phase UPS is proposed. Stationary frame resonant filter bank based output voltage control loop, which is complemented by capacitor current feedback based active damping loop, is employed. Utilizing the zero-state partitioning variable, a generalized form of scalar PWM for the four-wire inverter is developed and the minimum loss discontinuous PWM method is derived. The design and analysis for the four-wire inverter UPS are proposed. Linear and nonlinear loads for balanced and unbalanced load operating conditions are implemented. The scalar control and PWM methods are proposed and implemented in MATLAB simulation.
Keywords :
PWM invertors; control system synthesis; feedback; power filters; uninterruptible power supplies; voltage control; MATLAB simulation; active damping loop; balanced load operating conditions; capacitor current feedback; controller analysis; controller design; four-wire inverter; linear loads; minimum loss discontinuous PWM method; nonlinear loads; output voltage control loop; scalar PWM; scalar control; stationary frame resonant filter bank; three-phase UPS system; unbalanced load operating conditions; uninterruptible power supply; zero-state partitioning variable; Inverters; Power harmonic filters; Pulse width modulation; Switches; Uninterruptible power systems; Voltage control; Wires; PWM; Three-phase; UPS; Voltage Control; four-leg; four-wire; inverter; resonant filter;
Conference_Titel :
Electrical, Electronics and Computer Science (SCEECS), 2012 IEEE Students' Conference on
Conference_Location :
Bhopal
Print_ISBN :
978-1-4673-1516-6
DOI :
10.1109/SCEECS.2012.6184814
