Control Methods of Inverter-Interfaced Distributed Generators in a Microgrid System

  title={Control Methods of Inverter-Interfaced Distributed Generators in a Microgrid System},
  author={Il-Yop Chung and Wenxin Liu and D. Cartes and E. Collins and S. Moon},
  journal={IEEE Transactions on Industry Applications},
Microgrids are a new concept for future energy distribution systems that enable renewable energy integration and improved energy management capability. Microgrids consist of multiple distributed generators (DGs) that are usually integrated via power electronic inverters. In order to enhance power quality and power distribution reliability, microgrids need to operate in both grid-connected and island modes. Consequently, microgrids can suffer performance degradation as the operating conditions… Expand
A Modified Droop Controller for Parallel Operation of Single-Phase Inverters in Islanded Microgrid
A new method of average power computation is proposed which significantly reduces the delay encountered in conventional approaches and provides the power signal without DC components and improves the performance of parallel-connected power electronic inverters in an islanded microgrid as compared to conventional droop control. Expand
A control algorithm for the stable operation of interfaced converters in microgrid systems
This paper deals with a control concept for enhancing the stable operation of microgrid plan during the grid connected and islanding modes. The Lyapunov control theory is considered in this paper toExpand
A review of AC microgrid control methods
The concept of microgrid (MG) has been introduced as a solution to future electrical grid challenges such as the rapid increase of electrical demand, harvesting energy from renewable energy sources,Expand
Small signal stability improvement of a microgrid by the optimised dynamic droop control method
The strategy developed ensures improved power-sharing capability with high values of natural Droop gains without compromising stability by using optimised dynamic droop gains. Expand
General Interface for Power Management of Micro-Grids Using Nonlinear Cooperative Droop Control
This paper presents a comprehensive and general nonlinear control/power management strategy for both converter- and synchronous-machine-based units in microgrids. The proposed controller offers theExpand
Dynamic performance improvement of an inverter-based grid-connected microgrid
  • M. Hassan, M. A. Abido
  • Engineering
  • 2013 International Conference on Renewable Energy Research and Applications (ICRERA)
  • 2013
In this paper, a new control technique for stability improvement of the grid connected microgrids is proposed. Grid connected microgrid including voltage source inverter (VSI), PLL, couplingExpand
Control technique for enhancing the stable operation of distributed generation units within a microgrid
This paper describes a control technique for enhancing the stable operation of distributed generation (DG) units based on renewable energy sources, during islanding and grid-connected modes. TheExpand
Resiliency-Oriented Optimization of Critical Parameters in Multi Inverter-Fed Distributed Generation Systems
A small signal model of droop controllers with secondary loop control and an internal model-based voltage and current controller is proposed to improve the stability, resiliency, and power sharing of inverter-based distributed generation systems. Expand
Model Predictive Control for Multilevel Inverters in Microgrids
Power electronics converters play an important role in realization and performance improvement of electrical power system. With the demand for new power resource and better power supply quality, moreExpand
Optimization of Standalone Microgrid Considering Active Damping Technique and Smart Power Management Using Fuzzy Logic Supervisor
This paper analyzes three aspects of developing a new approach of active damping technique based on mathematical model of VSC without any additional sensors, reducing the size of the output LC filter and building a strong fuzzy logic supervisor for smart power management. Expand


Control parameter optimization for a microgrid system using particle swarm optimization
Microgrids are new concept of electric power networks consisting of distributed generators, renewable energy sources and sensitive loads. The goal of microgrid operation is to provide reliable andExpand
A wireless controller to enhance dynamic performance of parallel inverters in distributed generation systems
This paper presents a novel control strategy for parallel inverters of distributed generation units in an AC distribution system. The proposed control technique, based on the droop control method,Expand
Energy Management in Autonomous Microgrid Using Stability-Constrained Droop Control of Inverters
This paper presents an energy management system (EMS) for a stand-alone droop-controlled microgrid, which adjusts generators output power to minimize fuel consumption and also ensures stableExpand
Power Management Strategies for a Microgrid With Multiple Distributed Generation Units
This paper addresses real and reactive power management strategies of electronically interfaced distributed generation (DG) units in the context of a multiple-DG microgrid system. The emphasis isExpand
Robust Control Scheme for a Microgrid With PFC Capacitor Connected
Capacitors are widely used for power-factor correction (PFC) in power systems. When a PFC capacitor is installed with a certain load in a microgrid, it may be in parallel with the filter capacitor ofExpand
Modeling, Analysis and Testing of Autonomous Operation of an Inverter-Based Microgrid
The analysis of the small-signal stability of conventional power systems is well established, but for inverter based microgrids there is a need to establish how circuit and control features give riseExpand
Micro-grid autonomous operation during and subsequent to islanding process
This paper investigates (i) preplanned switching events and (ii) fault events that lead to islanding of a distribution subsystem and formation of a micro-grid. The micro-grid includes two distributedExpand
A New Islanding Detection Method using Phase-Locked Loop for Inverter-Interfaced Distributed Generators
This paper proposes a new islanding detection method for inverter-interfaced distributed generators (DG). To detect islanding conditions, this paper calculates the phase angle variation of the systemExpand
Vector analysis and control of advanced static VAr compensators
The advanced static VAr compensator (ASVC) is based on the principle that a self-commutating static inverter can be connected between three-phase AC power lines and an energy-storage device, such asExpand
Operating strategy and control scheme of premium power supply interconnected with electric power systems
This paper presents an inverter-interfaced distributed generation (DG) device, dubbed the premium power supply (PPS), which is designed to provide reliable electric power, and to improve powerExpand