In this paper, the major challenges and issues in control of microgrids are discussed. The paper classifies possible microgrid control architectures from highly centralized to fully distributed peer-to-peer techniques. A control paradigm based on coupled microgrids, peer-to-peer communication and autonomous control, is proposed as a way to control the distribution network with a high penetratio...

Community microgrids are set to change the landscape of future energy markets. The technology is being deployed in many cities around globe. However, a wide-scale deployment faces three major issues: initial synchronization with utility grids, slip management during its operation, and mitigation distortions produced by inverter. This paper proposes Phasor Measurement Unit (PMU) Assisted Inverte...

An improved control strategy for grid-connected inverters within microgrids is presented in this paper. The strategy is based on the classical P-ω and Q-V droop method. The improvement in the proposed control strategy is twofold: Firstly, the transient response of the droop controller is improved by replacing the traditional method of measuring average power, which is based on using a first ord...

This paper presents the comparison of Push-Pull Inverter and Z-Source Inverter based Static Compensators (STATCOM).The closed loop system with STATCOM is modeled and simulated using the blocks of MATLAB/SIMULINK.Voltage sag mitigation using Push-Pull Inverter and ZSource Inverter are presented. The present work proposes Z-Source Inverter and Push-Pull Inverter based STATCOM for the control of r...

 Abstract— The optimal planning problem of provisional microgrids, as a new class of microgrids, is investigated in this paper. Unlike traditional microgrids, provisional microgrids do not possess the islanding capability and are dependent on one or more electrically connected microgrids, called coupled microgrids, for islanding purposes. Provisional microgrids can be considered as enablers of...

Abstract The increasingly popular inverter distributed generation in microgrids is leading to changes system fault characteristics. behaviors of are closely related the control mode. Here, a photovoltaic power supply constant mode enters low-voltage ride-through state when there microgrid. output current phase analyzed, and local protection method based on difference feeder positive-sequence pr...

Since the penetration level of inverter-based distributed generations (IBDGs) into microgrids (MGs) is increasing, protection issues such networks have become more challenging. The present work aims to design a framework for fault detection and classification in IBDG dominated MGs. In proposed approach, current waveforms measured from one end protected lines are processed using superimposed com...

Large-scale integration of different renewable energy resources introduces significant challenges to the protection microgrids (particularly those that may operate in islanded mode), including variable and low fault levels, difficulty operation main backup with their coordination, bidirectional power flow during faults. As a solution such challenges, this paper presents novel active strategy fo...

Data center operators are typically faced with three significant problems when running their data centers, i.e., rising electricity bills, growing carbon footprints and unexpected power outages. To mitigate these issues, running data centers in microgrids is a good choice since microgrids can enhance the energy efficiency, sustainability and reliability of electrical services. Thus, in this pap...

single phase diode clamped multilevel inverter Department of.This paper presents a single phase multilevel inverter for using as a voltage harmonic source. First, a single phase multilevel inverter system is presented and.The structure of the multilevel inverter using cascaded-inverters with separated dc. single phase multilevel inverter 5 Single-phase configuration of an m-level cascaded inver...