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The paper proposes a current source based Dynamic VAR Compensator (DVC) control strategy. The switching unit in this DVC topology is composed of series connected switch and diode also termed as the “current switch”. The proposed controller has been designed to force discontinuous conduction mode operation thus fundamentally different from the traditional constant current source based control system...
The paper presents an improved control strategy for Dynamic Current (Dyna-C) Converter. Dyna-C is a bidirectional current-source based AC/AC converter for Solid State Transformer (SST) application. The proposed controller facilitates discontinuous mode operation which leads to zero current turn on and turn off. A non-linear average phase charge based controller is presented which ensures zero harmonic...
The paper investigates a soft-switching buck-boost AC/DC converter. The proposed converter uses 4 active switches and overcomes the various shortcomings of conventional rectifiers. The proposed controller facilitates discontinuous mode of operation that leads to zero current turn on and turn off. A nonlinear average phase charge based controller is presented which ensures zero harmonic current in...
Solid state transformer (SST) is considered the key unit for power processing and conversion in the future distributed renewable energy network. The role of SST is to enable the active management of distributed energy resources, energy storage devices and different type of loads in a distribution grid. Inverter stage of SST supplies sinusoidal voltage to the users. In this paper an improved inductor...
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