Modeling and analysis of split-Pi converter using State space averaging technique

Abstract

Potential of bidirectional Split-Pi converter is yet to be exploited. Its unique features like bidirectional property, option to employ in multiphase systems and smaller ratings of passive elements provides liberty to use it in applications demanding high power density such as in hybrid electric vehicles, renewable energy, aerospace, military etc. In this paper dynamic model of Split-Pi converter is presented. State space averaging technique is used to derive the transfer function of Split-Pi converter operating in boost mode and type II compensator is designed for the stable closed loop operation of the converter. All the simulations of the converter are done using LTspice simulation software.

Analysis of Power Losses in Power Supply for Micro Resistance Welding

“…Також комірки такого перетворювача можна підключати паралельно з перетворювачами іншого типу, або з такими ж перетворювачами, тому на їх основі можна будувати багатофазні системи, де розміри та вартість Copyright (c) 2020 Карбівська Т. О., Кожушко Ю. В., Бондаренко О. Ф. DOI: 10.20535/2523-4455.mea.208874 компонентів можуть відігравати значну роль. Ще однією перевагою є те, що цей перетворювач може формувати вихідну напругу як вище, так і нижче відносно вхідної напруги [14].…”

A Novel Topology of Multilevel Bidirectional and Symmetrical Split-Pi Converter

“…Regarding dc-dc topologies, extensive reviews about the conventional dc-dc converters are offered in [17] and [18], but to control, at the same time, the input current and the output current, the conventional topologies are not properly flexible. The topology of a split-pi converter consists in a bidirectional arrangement of two interconnected dc-dc converters sharing a common dc-link and with two independent dc interfaces, which is used to obtain an output voltage that can be higher, equal, or lower than the input voltage [19]. Usually, the input-side is controlled as boost-type and the output-side as buck-type.…”

Multicell multi‐output converter to counter unbalanced input sources in nanogrid applications

“…Spilt-Pi requires an inductor and capacitor of lower ratings as compared with its buck-boost counterpart, hence, reduces the overall size and cost of the converter. 12 Compared with conventional power system, nanogrid is designed to provide high power dense solution. 13 Hence, to supply power to AC and DC loads, utilizing two separate converters for DC-DC and DC-AC conversions is not a good solution.…”

“…However, in hybrid DC nanogrid architecture, as shown in Figure B, a hybrid converter capable of generating both DC and AC output for DC input is present. This paper proposes a hybrid converter derived from Split‐Pi converter, which is a DC‐DC converter with both buck and boost capabilities. The DC‐DC converter topologies are mainly classified as buck and boost topologies.…”

“…Split‐Pi converter proposed in Crocker, 11 also operates in buck‐boost mode where boost and buck are connected in cascaded arrangement. Spilt‐Pi requires an inductor and capacitor of lower ratings as compared with its buck‐boost counterpart, hence, reduces the overall size and cost of the converter 12 …”