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EPE 2007 - Subtopic 03-1 - LS: 'Power system integration'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 03: 'Power system integration' > EPE 2007 - Subtopic 03-1 - LS: 'Power system integration'
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	Stability of DC link with reduced energy storage for regenerative synchronous drive   By Nicolas Roux; Frédéric Richardeau	[View]   [Download]
Abstract: The purpose of this paper is to present an analytical approach in order to minimize the energy storage of a DC bus composed of a source, a filter and a load to estimate the influence of all parameters (operating point, control …) on the stability. The model of a real load, constituted by a PWM voltage inverter connected to a permanent magnet synchronous drive is developed.
	An approach to building more compact power electronic converters   By Jelena Popović-Gerber; Mark Gerber; Braham Ferreira	[View]   [Download]
Abstract: An approach to constructing high power density power electronic converters is presented. The largest volume contributors in state-of-the-art construction technology are discussed. A concept to reduce the volume of converters by means of increasing the level of integration and better thermal management is introduced. Hybrid integration of power electronic circuits through partitioning the circuit into sub-circuits on the basis of components’ characteristics such as heat density, volumetric aspects and cost per volume is discussed. These sub-circuits are referred to as Integrated Power Electronic Modules (IPEMs) and are manufactured in suitable integration technologies. The concept is applied to a case study, a converter for 2 kW AC drive, as part of the demonstrator program running under European Centre for Power Electronics (ECPE) “Industrial Drives – System Integration”. The electrical circuit schematic of the converter is partitioned into three IPEMs: Planar Ceramic IPEM, Planar PCB IPEM and 3D Passive IPEM. Suitable technologies for implementation of each IPEM and their volume reduction potential are discussed.
	Comparison of DC-DC-converter Architectures of Power Management Circuits for Thermoelectric Generators   By Doms I.; Merken P.; Van Hoof C.	[View]   [Download]
Abstract: Future wireless sensor nodes will, for certain applications, require only a few microwatts of energy. Micro-machined thermoelectric generators can produce such amount of electrical energy, but variations in the generated power and voltage make a power management circuit necessary to generate a suitable power supply for the sensor node. This paper compares 2 options for such a circuit. We present one power management circuit for a thermoelectric generator that contains a DC-DC-converter with an inductor and one with capacitors. The converter with inductor has the advantage that the conversion factor can be set very precise. But for an efficient implementation, a large inductor is required. This inductor prevents the solution from being small and efficient at the same time. The use of an integrated charge pump however, will allow a more efficient circuit than a DC-DC-converter with an integrated inductor, even though the conversion factor is less flexible. Ultimately, the type of application will impose the type of DC-DC-converter that will be used.