The high-penetration of Distributed Energy Resources (DER) in low voltage distribution grids, mainly photovoltaics (PV), might lead to overvoltage the point common coupling, thus, limiting entrance renewable sources fulfill requirements from network operator. Volt-var is a control function for DER power converters that used enhance stability and reliability system. In this study, centralized al...

Abstract: Owing to the problems of DC side capacitor value choice in the application of Active Power Filter (APF), this article presents a technique based on the analysis of the ripple voltage in DC side by graining appropriately the undulation control rate within the range of settings and control DC voltage so that the voltage fluctuation rate can reach minimum value under the condition of spe...

A Voltage Scaling Power Reduction Strategy for Memory-Based LDPC Decoders Dawei Song Master of Applied Science Graduate Department of Electrical and Computer Engineering University of Toronto 2016 In baseband digital signal processing, dynamic voltage scaling is an effective method to reduce the power consumption of an SOC. Voltage scaling directly applied to embedded memories can lead to stabi...

Design of portable battery operated multimedia devices requires energy-efficient multiplication circuits. This paper proposes a novel architectural technique to reduce power consumption of digital multipliers. Unlike related approaches which focus on multiplier transition activity reduction, we concentrate on dynamic reduction of supply voltage. Two implementation schemes capable of dynamically...

The scaling trend of MOSFETs requires the supply and the threshold voltages to be reduced in future generations. Although the supply voltage is reduced, the total power dissipation and the static power of the chip are increased. Power dissipation is one of the limiting factors in achieving the highest performance of a chip. Therefore, new power reduction techniques are required. In this paper a...

in this paper, a new topology is proposed for three-phase to single-phase matrix converters, where more voltage levels are produced in the output in comparison with the conventional topologies. in addition, a new control method based on minimum error between the generated and the desired output voltages is proposed for three-phase to single-phase matrix converters. in the proposed control metho...

The on-load tap changer is critical for voltage regulation, however, its regulation philosophy suitable one-directional power flow systems. Since distributed generators introduce bidirectional flow, the conventional operation of will be highly impacted, resulting in high magnitudes that exceed acceptable limits, frequent magnitude fluctuations, and increase overall reactive supply when start ab...