Power Management for DC Microgrid Enabled by Solid-State Transformer

A novel distributed power management scheme is proposed in this paper for a DC microgrid system, which is enabled by Solid-State transformer (SST). The proposed system includes distributed renewable energy resource (DRER) and distributed energy storage device (DESD). The proposed distributed control algorithm, which only relies on the local information and guarantees full utilization of each module in the system based on their characteristics, is applied to both SST and DC microgrid. To this end, a simulation platform is developed in MATLAB/Simulink, in which Photovoltaic (PV), fuel cell and battery are selected as the typical DRERs and DESD, respectively. Lastly, several typical case studies are carried out and the simulation results verify the proposed distributed power management.

[1]  L.G. de Vicuna,et al.  Parallel operation of uninterruptible power supply systems in microgrids , 2007, 2007 European Conference on Power Electronics and Applications.

[2]  Amit Kumar Tamang.  Coordinated Charging of Plug-in Hybrid Electric Vehicles to Minimize Distribution System Losses , 2013 .

[3]  Juan C. Vasquez,et al.  Hierarchical Control of Droop-Controlled AC and DC Microgrids—A General Approach Toward Standardization , 2009, IEEE Transactions on Industrial Electronics.

[4]  Yu Zhang,et al.  Control Strategies for Battery/Supercapacitor Hybrid Energy Storage Systems , 2008, 2008 IEEE Energy 2030 Conference.

[5]  M. Vitelli,et al.  Optimization of perturb and observe maximum power point tracking method , 2005, IEEE Transactions on Power Electronics.

[6]  S. Round,et al.  Autonomous Load Shedding in a Nanogrid using DC Bus Signalling , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[7]  Jing Sun,et al.  Power Flow Characterization of a Bidirectional Galvanically Isolated High-Power DC/DC Converter Over a Wide Operating Range , 2010, IEEE Transactions on Power Electronics.

[8]  S. Rael,et al.  Mathematical model and characterization of the transient behavior of a PEM fuel cell , 2004, IEEE Transactions on Power Electronics.

[9]  Xunwei Yu,et al.  Active power — Voltage control scheme for islanding operation of inverter-interfaced microgrids , 2009, 2009 IEEE Power & Energy Society General Meeting.

[10]  S. D. Sudhoff,et al.  A Power Electronic-Based Distribution Transformer , 2002, IEEE Power Engineering Review.

[11]  Richard Duke,et al.  DC-Bus Signaling: A Distributed Control Strategy for a Hybrid Renewable Nanogrid , 2006, IEEE Transactions on Industrial Electronics.

[12]  R.H. Lasseter,et al.  Microgrid: a conceptual solution , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[13]  Gangyao Wang,et al.  3-D Space Modulation With Voltage Balancing Capability for a Cascaded Seven-Level Converter in a Solid-State Transformer , 2011, IEEE Transactions on Power Electronics.

[14]  Jih-Sheng Lai,et al.  Multilevel intelligent universal transformer for medium voltage applications , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[15]  D.M. Divan,et al.  Performance characterization of a high power dual active bridge DC/DC converter , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[16]  Alex Q. Huang,et al.  Design and development of Generation-I silicon based Solid State Transformer , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[17]  R. Duke,et al.  Decentralized generator scheduling in a nanogrid using DC bus signaling , 2004, IEEE Power Engineering Society General Meeting, 2004..

[18]  Thomas J. Overbye,et al.  An Authenticated Control Framework for Distributed Voltage Support on the Smart Grid , 2010, IEEE Transactions on Smart Grid.

[19]  Huang-Jen Chiu,et al.  LED Backlight Driving System for Large-Scale LCD Panels , 2007, IEEE Transactions on Industrial Electronics.

[20]  Sun.  A Distributed Control Strategy based on DC Bus Signaling for Modular Photovoltaic Generation Systems with Battery Energy Storage , 2011 .

[21]  Wei Jiang,et al.  Active Current Sharing and Source Management in Fuel Cell–Battery Hybrid Power System , 2010, IEEE Transactions on Industrial Electronics.

[22]  M.R. Iravani,et al.  Power Management Strategies for a Microgrid With Multiple Distributed Generation Units , 2006, IEEE Transactions on Power Systems.