Journal ArticleDOI
Hierarchical control of droop-controlled DC and AC microgrids — a general approach towards standardization
Josep M. Guerrero,Juan C. Vasquez,Jose Matas,L.G. de Vicuna,Miguel Castilla +4 more
- Vol. 58, Iss: 1, pp 158-172
Reads0
Chats0
TLDR
The hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to MGs is presented and results are provided to show the feasibility of the proposed approach.Abstract:
DC and AC Microgrids are key elements to integrate renewable and distributed energy resources as well as distributed energy storage systems. In the last years, efforts toward the standardization of these Microgrids have been made. In this sense, this paper present the hierarchical control derived from ISA-95 and electrical dispatching standards to endow smartness and flexibility to microgrids. The hierarchical control proposed consist of three levels: i) the primary control is based on the droop method, including an output impedance virtual loop; ii) the secondary control allows restoring the deviations produced by the primary control; and iii) the tertiary control manage the power flow between the microgrid and the external electrical distribution system. Results from a hierarchical-controlled microgrid are provided to show the feasibility of the proposed approach.read more
Citations
More filters
Journal ArticleDOI
Fully Distributed Hierarchical Control of Parallel Grid-Supporting Inverters in Islanded AC Microgrids
TL;DR: In this paper, a fully distributed hierarchical control strategy is proposed for operating networked grid-supporting inverters (GSIs) in islanded ac microgrids (MGs) through a cascaded structure, which integrates the conventional secondary control and tertiary control into a single control level.
Journal ArticleDOI
A survey on the contributions of power electronics to smart grid systems
TL;DR: In this article, the authors discuss the contribution of power electronics to the smart grid in the context of generation, conversion, distribution, and control of power and present several power control methods.
Journal ArticleDOI
Synchronous Power Controller With Flexible Droop Characteristics for Renewable Power Generation Systems
TL;DR: In this article, a synchronous power controller for grid-connected converters is proposed as a good solution for the renewable generation systems with energy storage, which provides inertia, damping, and flexible droop characteristics.
Journal ArticleDOI
A Uniform Control Strategy for the Interlinking Converter in Hierarchical Controlled Hybrid AC/DC Microgrids
Junjun Wang,Chi Jin,Peng Wang +2 more
TL;DR: The proposed uniform control strategy is able to provide a smooth operation for the BIC without control mode switch in the event of unintentional scenario changes in power or communication network.
Journal ArticleDOI
A Fully Distributed Power Dispatch Method for Fast Frequency Recovery and Minimal Generation Cost in Autonomous Microgrids
TL;DR: A fully distributed power dispatch method that can achieve fast frequency recovery and minimal generation cost for autonomous microgrids and its applicability in the presence of communication time delay is discussed.
References
More filters
Book
Power System Stability and Control
TL;DR: In this article, the authors present a model for the power system stability problem in modern power systems based on Synchronous Machine Theory and Modelling, and a model representation of the synchronous machine representation in stability studies.
Journal ArticleDOI
The path of the smart grid
TL;DR: The electrical power industry is undergoing rapid change as discussed by the authors, and the major drivers that will determine the speed at which such transformations will occur will be the rising cost of energy, the mass electrification of everyday life, and climate change.
Journal ArticleDOI
Defining control strategies for MicroGrids islanded operation
TL;DR: In this article, the feasibility of control strategies to be adopted for the operation of a microgrid when it becomes isolated is evaluated and the need of storage devices and load shedding strategies is evaluated.
Journal ArticleDOI
Control of parallel connected inverters in stand-alone AC supply systems
TL;DR: In this article, a control scheme for parallel-connected inverters in a standalone AC supply system is presented, which uses feedback of only those variables that can be measured locally at the inverter and does not need communication of control signals between the inverters.
Journal ArticleDOI
Output impedance design of parallel-connected UPS inverters with wireless load-sharing control
TL;DR: This paper deals with the design of the output impedance of uninterruptible power system (UPS) inverters with parallel-connection capability, and proposes novel control loops to achieve both stable output impedance and proper power balance.