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Series-connected microconverters have been used to integrate distributed energy resources into grid mains through a single-stage power conversion. When this string converter is switched to islanding operation mode, it is preferred to share the local load demand by series microconverter modules in a decentralized manner. Due to the characteristics of series connection, the well-understood P–f droop...
This work presents a new trajectory tracking control strategy for a three phase Voltage Source Converter (VSC). The design is based on a third order nonlinear model of the VSC expressed in the dq frame. By suitable approximation of the dc voltage dynamics, the system is transformable to a LTI form by a nonlinear change of state coordinates. In these new state coordinates we use a Lyapunov function...
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