Mohamed A Abdelwahed

Benha University · Department of Electrical Engineering

The future smart grid can have an AC/DC hybrid structure that enables the integration of AC/DC energy supply and demand, thus permitting the formation of AC/DC hybrid microgrids (HMGs). The AC/DC HMG is a promising concept that provides the envisioned smart grid with the plug-and-play feature. Nevertheless, understanding such hybrid systems, especi...

This paper presents a methodology for selecting the droop gains of the voltage source converters (VSCs) in multi-terminal high-voltage direct current (MT HVDC) transmission system. The droop gains are selected to improve the DC voltage transient and steady state dynamics performance. The proposed methodology relies on improving the small signal sta...

This paper presents an adaptive droop-based power-sharing control strategy. The primary objective is to control the sharing of the active power transmitted by a multi-terminal voltage-source converter based high voltage direct current (MT VSC-HVDC) network among a number of onshore AC grids or offshore loads based on the desired percentage shares....

This paper presents a control strategy of offshore multi-terminal DC voltage control during a permanent power receiving converter outage. The proposed control strategy is used as a fault ride through (FRT) control tool for relieving DC voltage rise effects during power output converters outage. In addition it relies on local measurements and commun...

Worldwide, many countries spend billions of dollars on the development of renewable energy sources, especially wind generation, to counter the effects of global warming and in response to other environmental concerns. Given the increasing number of remotely located large power offshore wind farms, power sharing control and voltage regulation are si...

A promising configuration for future smart grids is an AC/DC hybrid topology that enables the integration of AC/DC energy resources and modern loads, thus permitting the consequent formation of AC/DC hybrid microgrids (HMGs). An understanding of AC/DC HMGs and their operational premise during islanding will certainly pave the way toward the realiza...

Abstract— Power sharing control and voltage regulation are considered as significant challenges in the development of large MT VSC-HVDC transmission grids, besides fault ride through and automatic restoration aspects. The main contribution of the work presented in this research is the proposal of a generic power sharing control algorithm. This algo...