NDLI: Modified split-source inverter with single-phase dual power decoupling

Content Provider	IET Digital Library
Author	Yin, Changqing Xin, Zhen Ding, Wenlong Loh, Poh Chiang
Abstract	Split-source inverter (SSI) is a topology developed for flexibly stepping up and down its ac output voltage using only a standard inverter bridge. However, when configured as a single-phase inverter, it is still burdened by common second-order ripples. This study, therefore, proposes a modified SSI (MSSI) that can perform dual power decoupling. Unlike existing schemes, dual power decoupling makes use of both dc- and ac-side capacitors for diverting second-order ripples away from the dc source, which may be solar or other types of sources that do not work well with sizable ripples. Dual power decoupling, however, requires careful topological changes, before its effective realisation can be achieved with only a standard inverter bridge and a very small overall capacitance. Design of this capacitance and its comparison with passive decoupling have then been analysed, before testing the MSSI in experiments. Results obtained have verified the MSSI as an enhanced single-phase inverter with both buck and boost abilities while using no extra switches.
Starting Page	2201
Ending Page	2211
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 11, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0013
Journal	IET Power Electronics
Publisher Date	2020-04-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Output Voltage Ac-side Capacitor Dc Source Dc-side Capacitor Enhanced Single-phase Inverter Invertors Modified Split-source Inverter Modified SSI MSSI Passive Decoupling Power Electronics Power Supply Second-order Ripples Single-phase Dual Power Decoupling Sizable Ripples Standard Inverter Bridge Supervisory Circuit
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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