This paper presents the application of fuzzy logic PID secondary voltage control to Egyptian power system model. The study included tertiary control, Wide Area Measurement System (WAMS) configuration, a selection pilot buses, and improve performance. was applied using coordinated controller, reactive integral Automatic Voltage Regulators (AVRs), regional generators. implemented based on optimal...

The smart grid and micro-grid technologies are playing necessary role in power system due to their benefi ts over traditional utility grid system. In micro grid, control and management has many functions to keep up stability and to boost power quality of the system. In this paper, a hierarchical control is presented which incorporates primary, secondary and tertiary control levels are planned f...

A DSP-based self-adaptive proportional-integral (PI) controller to control a DC-DC converter is proposed in this paper. Full-bridge topology is adopted here to obtain higher power output capability and higher conversion efficiency. The converter adopts zero-voltage-switching (ZVS) technique to reduce conduction losses. A parallel secondary active clamp circuit is added to deal with voltage over...

The design and breadboard implementation of a constant-frequency, zero-voltage-switched, full-bridge pulsewidth modulation converter delivering a 12-V-at-1-kW output from a 350–450-Vdc input bus is described. The zero-voltage switching characteristic is maintained over a wide operating range by utilizing the transformer magnetizing inductance as an energy storage element. Output voltage regulat...

The development of power system from centralized to decentralized control provides a great opportunities for multi agent control. This paper presents a coordination algorithm for power systems based on concept of agents and multi agent systems. Agents provides the ability to execute better controllability on large scale systems including power systems. Here, multi agent systems is defined to re...

in this study, a novel variable impedance control for a lower-limb rehabilitation robotic system using voltage control strategy is presented. the majority of existing control approaches are based on control torque strategy, which require the knowledge of robot dynamics as well as dynamic of patients. this requires the controller to overcome complex problems such as uncertainties and nonlinearit...

This paper proposes an efficient control framework that utilizes de-de converters to achieve flexible power flow control in multiterminal de (MTDC) grids. The de-de converter employed in this paper is connected in cascade with the de transmission line, and is therefore named cascaded power flow controller (CPFC). In this paper, a two-layer control strategy is developed for the operation and con...

A microgrid formed by a cluster of parallel distributed generation (DG) units is capable operating in either islanded mode or grid-connected mode. Traditionally, using model predictive control algorithms, these two operation modes can be achieved with separate and different cost functions, which brings complexity hence, compromises system reliability. In this article, unified voltage current st...