Smart distribution network device for microgrid applications

This paper focuses on the design of a smart distribution network device for improving the power quality and reliability of the overall power distribution system that the microgrid is connected to. The control design employs a newly developed Model Predictive Control algorithm which optimizes the steady-state and the transient control problems separately to achieve a faster computational time for large power systems. Kalman filters are also employed as state observers to identify the required signals needed for monitoring purposes as well as to extract the harmonic spectra of the grid voltage and the load currents. The design concept is verified through different test case scenarios to demonstrate the capability of the proposed device and the results obtained are discussed.

[1]  Ali Emadi,et al.  An On-Line UPS System With Power Factor Correction and Electric Isolation Using BIFRED Converter , 2008, IEEE Transactions on Industrial Electronics.

[2]  A. Ghosh,et al.  Design of a capacitor-supported dynamic voltage restorer (DVR) for unbalanced and distorted loads , 2004, IEEE Transactions on Power Delivery.

[3]  Ping Lam So,et al.  Model-Based $\hbox{H}_{\infty}$ Control of a Unified Power Quality Conditioner , 2009, IEEE Transactions on Industrial Electronics.

[4]  Teo Cheng Yu,et al.  Electrical machines and drives , 2002 .

[5]  Frede Blaabjerg,et al.  A Robust Control Scheme for Medium-Voltage-Level DVR Implementation , 2007, IEEE Transactions on Industrial Electronics.

[6]  Arindam Ghosh,et al.  Power Quality Enhancement Using Custom Power Devices , 2002 .

[7]  Frede Blaabjerg,et al.  Frequency Response Analysis of Current Controllers for Selective Harmonic Compensation in Active Power Filters , 2009, IEEE Transactions on Industrial Electronics.

[8]  Yun-Chung Chu,et al.  Efficient model predictive algorithms for tracking of periodic signals , 2012 .

[9]  D. Mahinda Vilathgamuwa,et al.  A Novel Technique to Compensate Voltage Sags in Multiline Distribution System—The Interline Dynamic Voltage Restorer , 2006, IEEE Transactions on Industrial Electronics.

[10]  P.L. So,et al.  Improvement of power quality using adaptive shunt active filter , 2005, IEEE Transactions on Power Delivery.

[11]  An Luo,et al.  Combined System for Harmonic Suppression and Reactive Power Compensation , 2009, IEEE Transactions on Industrial Electronics.

[12]  Kay Soon Low,et al.  Model Predictive Control of Parallel-Connected Inverters for Uninterruptible Power Supplies , 2008, IEEE Transactions on Industrial Electronics.

[13]  R H Lasseter,et al.  CERTS Microgrid Laboratory Test Bed , 2011, IEEE Transactions on Power Delivery.

[14]  Gabriel Garcera,et al.  Robust Model-Following Control of Parallel UPS Single-Phase Inverters , 2007, ISIE 2007.

[15]  Stephanie Hamilton,et al.  Distributed Generation: A Nontechnical Guide , 2001 .