A Bi-directional DC/DC Converter for Hybrid Wind Generator/Battery System with State Machine Control

C.-C. Hua and Y.-C. Liao (Taiwan)


Wind generator, state machine, hybrid system, battery


This paper presents a bi-directional dc/dc converter used in a hybrid wind generator(WG)/lead-acid battery power system with state machine control. State machine control strategy is used to control the system power flow and load sharing and it can also raise the system power capacity. The battery is charged or discharged through the bi directional dc/dc converter. By adjusting the duty cycle of the power converter, multi-stage current charging control of batteries is realized and the efficiency of charging is improved. The proposed control method can be easily extended to other renewable energy conversion systems.

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