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Microgrids are small reliable grids formed by clustering distributed sources and loads together. They can, in principle, operate at different voltages and frequencies like 50 Hz, 60 Hz, 400 Hz or even dc. Tying them either to the mains grid or among themselves would certainly require some interlinking power converters, whose active and reactive power flow control should preferably be done autonomously...
Uninterruptible power supplies (UPSs) are commonly used to supply quality power at a well-regulated voltage to all nonlinear and unbalanced loads. To achieve that, a number of control schemes have since been proposed with the traditional double-loop linear control scheme being more popular because of its simple conceptual formulation and physical implementation. Despite of its popularity, the harmonic...
Precise controlling of current produced by power converters is an important topic that has attracted interests over the last few decades. With the recent proliferation of grid-tied converters where the control of power flow is indirectly governed by the accuracy of current tracking, motivation to develop dynamically fast and accurate current controllers is even more intensive with more features expected...
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