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A novel approach for mitigation of power quality issues have been presented in the paper. This paper introduces a Center-Point-Clamped AC-AC Buck-Boost Converter based power quality device for industrial and residential customers at the leaf end of the distribution network. This converter utilizes the principle of center-point-clamping to reduce the voltage stress on the power semiconductor switches...
A Virtual Power Plant (VPP) composed of distributed energy resources (DER) with load and generation forecasting is presented in this paper. The large-scale integration of renewable energy and energy storage systems have introduced many technical and economic challenges to both customers and utilities. High levels of renewable power injection might reduce grid stability due to intermittencies. The...
The significant mechanical inertia of the rotor in a synchronous generator is crucial for facilitating the cooperative grid forming capability of multiple such generators on the transmission and distribution network. This paper demonstrates that the DC link capacitance in a PV inverter is the analogous form of inertia for such a system, albeit having much smaller magnitude. Furthermore it proposes...
Proliferation of distributed energy resources (DERs) on the low voltage network comes with a myriad of power quality problems such as voltage fluctuations and poor harmonic performance. Distributed mitigation solutions are being proposed for the low voltage network which are similar to state-of-the-art solutions in medium voltage networks. This paper presents a μ-STATCOM device as a distributed solution...
Co-simulation is a versatile technique for splitting a large system model into multiple components that can then be solved in parallel on interconnected simulation platforms. This is most useful for interconnecting diverse Real-Time platforms (possibly from different vendors). A challenge emerges from the discrepancy of the time base between the systems. Even a minute difference in the frequencies...
A conventional Counter-Comparator Digital Pulse Width Modulator (DPWM) with a fixed slope is dynamically and linearly shifted upwards or downwards by a value proportional to the error signal. The shift is done through applying a positive or negative offset (shift) value depending on the direction of the transient. This control approach aims to improve the transient response and efficiency of an FPGA-based...
The interactive technical electronic book, TechEBook, currently under development at the University of Central Florida (UCF), introduces a paradigm shift by replacing the traditional electrical engineering course with topic-driven modules that provide a useful tool for engineers and scientists. The TechEBook comprises the two worlds of classical circuit books and interactive operating platforms such...
Transmission grids worldwide are presently facing challenges in integrating large scale renewable systems due to their limited power transmission capacity. This paper presents a novel circuit topology and control for grid connected micro-inverters suitable for solar AC modules. This topology is based on the single-stage DC to AC conversion approach. The circuit has an L-C series resonant converter,...
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