Power electronics and control of a four inputs hybrid power system

Iqbal, Tariq and Haque, Reaz Ul and Quaicoe, John (2007) Power electronics and control of a four inputs hybrid power system. In: 17th Annual Newfoundland Electrical and Computer Engineering Conference (NECEC), November, 2007, St. John's, Newfoundland and Labrador.

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Abstract

A hybrid power system consists of two or more power sources working in parallel. Such a system needs power electronics to extract maximum power and to control the flow of power from each renewable power source to the users load. We consider a small hybrid power system consisting of two wind turbines, a PV array and a pico-hydro system. A parallel combination of DC-DC converters connected between renewable energy sources and a common DC bus is used to control the power flow in the hybrid power system. In this paper we present a power electronic and control solution for such four inputs small hybrid power system with a common 48V DC bus. System power electronics design and proposed control strategies for each renewable power inputs are presented. Design and development progress of the proposed power electronics and control arrangement is included in the paper.

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