International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)
107 Optimal Design of a Power Electronic System for Efficient and Reliable Power Flow in Distributed Wind Energy Based Power Systems
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Wind energy turbines, when connected to the grids are unreliable sources of power, which causes much stability problems to the entire system. When additional power is required, an energy flow is required between a battery stack and the consumer load. In this paper, an attempt to design a distributed PES [Power Electronics Sub-System] comprising of a dc-dc boost converter, wind-turbine-set and the battery has been made. To realize high efficiency, and make the operation cost-effective, power from both the battery and wind-turbine generator is fed to the load via the PES while the energy input is controlled according to demand. The purpose of the paper is to describe a power management control system for a distributed PES, and outline how to calculate an optimal number of power converter modules [dc-dc boost converter], so that maximum energy conversion efficiency is achieved. To increase the response time of the battery stack we use a gate controlled diode.