Abstract
Single-phase pulse width modulation H-bridge active capacitors have second-order harmonic ripple voltages on the DC bus. The second-order harmonic power is usually filtered by a bulk capacitor on the DC bus to maintain a constant dc-bus voltage, which results in low power density. However, in applications like active capacitors, a larger DC bus voltage fluctuation is acceptable since the DC bus connects to no load. This paper releases the constraints on DC bus voltage ripples so that the dc-bus capacitor can be fully utilized. Based on this idea, an infinite active capacitor and three types of real DC capacitor-less active capacitors are proposed, in which the dc-bus capacitors are completely removed. The analysis and design are validated by simulations.
Sign-in/Register to access full text options 
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.
