Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Simulation and power quality analysis of a Loose-Coupled bipolar DC microgrid in an office building

Journal Article · · Applied Energy
 [1];  [2];  [3];  [2];  [4];  [4];  [5]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Beijing University of Civil Engineering and Architecture (China)
  4. Shenzhen Institute of Building Research (China)
  5. Chinese Academy of Sciences (CAS), Beijing (China)
+ Show Author Affiliations

With distributed generation and battery storage technologies thriving in microgrids, the use of direct current (DC) microgrids in the building sector offers multiple advantages in energy efficiency and power quality compared with alternating current (AC) systems. This study developed a new concept of a loose-coupled bipolar DC building power system. In this work, the concept was used to design a real-world office building in Shenzhen, China. A power system model was developed to study the stability and control of the DC power system and to verify DC power quality. The design and modeling of the DC power control system is discussed in detail. The study developed a few common fault scenarios in DC building microgrids that were simulated in the MATLAB-Simulink environment to validate the design of a loose-coupled bipolar DC system. The results indicate that the proposed loose-coupled bipolar DC system schema, when implemented with proper control algorithms, can achieve good fault-tolerant performance with reliable power quality, even during disruptive system events.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Chinese Academy of Sciences (CAS); National Key R&D Program of China; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1902114
Journal Information:
Applied Energy, Journal Name: Applied Energy Vol. 303; ISSN 0306-2619
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

Primary and secondary control in DC microgrids: a review journal December 2018
EnergyPlus: creating a new-generation building energy simulation program journal April 2001
A simulation-based efficiency comparison of AC and DC power distribution networks in commercial buildings journal January 2018
Stability improvement of DC grids involving a large number of parallel solar power optimizers: An active damping approach journal October 2017
A critical review of power quality standards and definitions applied to DC microgrids journal November 2018
Energy savings from direct-DC in U.S. residential buildings journal January 2014
A review of droop control techniques for microgrid journal September 2017
Proportional-resonant controllers and filters for grid-connected voltage-source converters journal January 2006
UPS inverter design using discrete-time sliding-mode control scheme journal January 2002
Survey on DC microgrid architecture, power quality issues and control strategies conference January 2018
Topology Deduction and Analysis of Voltage Balancers for DC Microgrid journal June 2017
Fundamental characteristics of DC microgrid for residential houses with cogeneration system in each house conference July 2008
Microgrid Evolution Roadmap conference September 2015
AC vs. DC distribution: A loss comparison conference April 2008
Channel Characterization and EMC Assessment of a PLC System for Spacecraft DC Differential Power Buses journal August 2011
Analysis of Multiloop Control Strategies for LC/CL/LCL-Filtered Voltage-Source and Current-Source Inverters journal March 2005
Overview of Control and Grid Synchronization for Distributed Power Generation Systems journal October 2006
Feedback Linearization Control of Three-Phase UPS Inverter Systems journal March 2010
Lyapunov Function-Based Current Controller to Control Active and Reactive Power Flow From a Renewable Energy Source to a Generalized Three-Phase Microgrid System journal February 2013
High-Speed Maximum Power Point Tracking Module for PV Systems journal February 2019
Topics in Multiple-Loop Regulators and Current-Mode Programming journal April 1987
Automotive DC-DC bidirectional converter made with many interleaved buck stages journal May 2006
Low-Voltage Bipolar-Type DC Microgrid for Super High Quality Distribution journal December 2010
Operation and Control-Oriented Modeling of a Power Converter for Current Balancing and Stability Improvement of DC Active Distribution Networks journal March 2011
Virtual-Impedance-Based Control for Voltage-Source and Current-Source Converters journal December 2015
Comparative Stability Analysis of Droop Control Approaches in Voltage-Source-Converter-Based DC Microgrids journal March 2017
Voltage Balancing for Bipolar DC Distribution Grids: A Power Flow Based Binary Integer Multi-Objective Optimization Approach journal January 2019
Unbalanced Voltage Suppression in a Bipolar DC Distribution Network Based on DC Electric Springs journal March 2020
Constant Power Loads and Negative Impedance Instability in Automotive Systems: Definition, Modeling, Stability, and Control of Power Electronic Converters and Motor Drives journal July 2006
Optimal Multidimensional Droop Control for Wind Resources in DC Microgrids journal July 2018
Power Quality in DC Distribution Networks journal March 2019

Similar Records

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Bipolar
DC power
Microgrid
Simulation
Stability