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Grid-connected doubly-fed induction generators suffer from limited fault ride-through capability during grid faults and disturbances. This paper proposes a control and energy management scheme for a DFIG-based wind energy conversion system with a converter-free battery energy storage that improves the quality of power delivered to the utility grid during normal operating conditions and enhances the...
This paper is focused on the design of Axial Flux Permanent Machine (AFPM) tailored for low-speed high-torque applications. In particular, the design procedure is developed starting from a tooth concentrated winding topology; given its high reliability, this is an optimal solution in the context of electric torsional damping applications, where high torque values and good dynamic performance are required...
The paper deals with a Second Order Variable Structure Control (VSC) for Wind Turbine PMSG-based and Generator-side Converter System. By means of the proposed control and the associated sliding observer, a vectorial control of PMSG generator is recognized while maximum power point tracking by the renewable source and DC voltage control of the generator-side converter are assured to maintain a high...
Various control strategies for power regulation in variable-speed wind turbines commonly assume that the whole system parameters are known and available, which is not necessarily satisfied in practice. In this work, an adaptive control strategy, which neither need to know completely the system parameters nor the rotor acceleration, is proposed for power regulation and tracking. It also includes a...
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