Abstract
The paper proposes the application of PV system for uninterruptible power supply (UPS). The PV system is composed of a novel single-phase PWM voltage source inverter (VSI). Composite PWM method is achieved by a circuit configuration consisting of the normal single-phase bridge circuit and an additional arm, which contributes to reduce the ripple in the AC output current. The VSI has a LC series-resonance circuit tuned to twice the utility frequency connected in parallel with the smoothing capacitor. The series-resonance circuit absorbs the double-frequency AC components included in the DC pulsated current. Hence, the smoothing capacitor is drastically reduced. A storage battery is added on the DC side in order to stabilize DC voltage. The VSI is easily changed from inverter action to rectifier action by changing the firing angle α from plus to minus. When α is minus, the VSI acts as a battery charger.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
