Title :
Buck-Boost converter based SHE-PWM technique multilevel inverter control for STATCOM system
Author :
Jayashree, M. ; Chitra, J.
Author_Institution :
Sri Shakthi Inst. of Eng. & Technol., Coimbatore, India
Abstract :
This paper presents a Selective Harmonic Elimination-PWM technology(SHE-PWM) for STATCOM (Static Synchronous Compensator) system employing H-Bridge multilevel inverter configuration. In this method variable DC voltage is used and the lower order harmonics are eliminated, without affecting the structure of the inverter. This method gives constant switching angle, so it reduces the number of steps required for offline calculation. The proposed method optimizes the DC-DC converter topology for high efficiency with high voltage capacity. In this paper a Buck-Boost converter is used. Current and voltage closed loop controllers are used to meet reactive power demand under varying load condition.
Keywords :
DC-DC power convertors; PWM invertors; bridge circuits; closed loop systems; electric current control; optimisation; power conversion harmonics; static VAr compensators; switching convertors; voltage control; DC voltage; DC-DC converter topology; H-bridge multilevel inverter configuration; PWM technology; SHE-PWM technique; STATCOM system; buck-boost converter; current closed loop controllers; lower order harmonics; multilevel inverter control; reactive power demand; selective harmonic elimination; static synchronous compensator; switching angle; voltage closed loop controllers; Automatic voltage control; Harmonic analysis; Inverters; Power harmonic filters; Pulse width modulation; Reactive power; H-Bridge Inverter; SHE-PWM; STATCOM; reactive power compensation;
Conference_Titel :
Computer Communication and Informatics (ICCCI), 2015 International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4799-6804-6
DOI :
10.1109/ICCCI.2015.7218165
