Active stabilization methods of electric power systems with constant power loads: a review

Modern electric power systems have increased the usage of switching power converters. These tightly regulated switching power converters behave as constant power loads (CPLs). They exhibit a negative incremental impedance in small signal analysis. This negative impedance degrades the stability margin of the interaction between CPLs and their feeders, which is known as the negative impedance instability problem. The feeder can be an LC input filter or an upstream switching converter. Active damping methods are preferred for the stabilization of the system. This is due to their higher power efficiency over passive damping methods. Based on different sources of damping effect, this paper summarizes and classifies existing active damping methods into three categories. The paper further analyzes and compares the advantages and disadvantages of each active damping method.

[1]  D. Mahinda Vilathgamuwa,et al.  Cascaded sliding mode control for global stability of three phase AC/DC PWM rectifier with rapidly varying power electronic loads , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.

[2]  Fred C. Lee,et al.  Impedance specifications for stable DC distributed power systems , 2002 .

[3]  Ali Emadi,et al.  Constant power loads and negative impedance instability in automotive systems: definition, modeling, stability, and control of power electronic converters and motor drives , 2006, IEEE Transactions on Vehicular Technology.

[4]  M. Belkhayat,et al.  Large signal stability criteria for distributed systems with constant power loads , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[5]  V. Grigore,et al.  Dynamics of a buck converter with a constant power load , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[6]  Wei Qiao,et al.  A Sliding-Mode Duty-Ratio Controller for DC/DC Buck Converters With Constant Power Loads , 2014, IEEE Transactions on Industry Applications.

[7]  A. Kwasinski,et al.  Analysis of boundary control for boost and buck-boost converters in distributed power architectures with constant-power loads , 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[8]  B. Fahimi,et al.  Analysis and control of a buck DC-DC converter operating with constant power load in sea and undersea vehicles , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[9]  Andrew J. Forsyth,et al.  Negative Input-Resistance Compensator for a Constant Power Load , 2007, IEEE Transactions on Industrial Electronics.

[10]  Yasser Abdel-Rady I. Mohamed,et al.  Decoupled Reference-Voltage-Based Active DC-Link Stabilization for PMSM Drives With Tight-Speed Regulation , 2012, IEEE Transactions on Industrial Electronics.

[11]  Bo Wahlberg,et al.  Stabilization of Induction Motor Drives With Poorly Damped Input Filters , 2007, IEEE Transactions on Industrial Electronics.

[12]  Xinbo Ruan,et al.  Adaptive Active Capacitor Converter for Improving Stability of Cascaded DC Power Supply System , 2013, IEEE Transactions on Power Electronics.

[13]  A. Khaligh,et al.  Design and Implementation of an Analog Constant Power Load for Studying Cascaded Converters , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[14]  A. Kwasinski,et al.  Passivity-Based Control of Buck Converters with Constant-Power Loads , 2007, 2007 IEEE Power Electronics Specialists Conference.

[15]  Simon Wall,et al.  Fast controller design for single-phase power-factor correction systems , 1997, IEEE Trans. Ind. Electron..

[16]  R. D. Middlebrook,et al.  Input filter considerations in design and application of switching regulators. , 1976 .

[17]  Paolo Mattavelli,et al.  Power factor preregulators with improved dynamic response , 1995 .

[18]  Robert W. Erickson,et al.  Self-tuning digitally controlled low-harmonic rectifier having fast dynamic response , 2003 .

[19]  B. Nahid-Mobarakeh,et al.  Large-Signal Stabilization of a DC-Link Supplying a Constant Power Load Using a Virtual Capacitor: Impact on the Domain of Attraction , 2012, IEEE Transactions on Industry Applications.

[20]  Gerry Moschopoulos,et al.  A new control scheme for an AC-DC single-stage buck-boost PFC converter with improved output ripple reduction and transient response , 2014, 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014.

[21]  Yasser Abdel-Rady I. Mohamed,et al.  Linear Active Stabilization of Converter-Dominated DC Microgrids , 2012, IEEE Transactions on Smart Grid.

[22]  Ali Emadi,et al.  Loop-Cancellation Technique: A Novel Nonlinear Feedback to Overcome the Destabilizing Effect of Constant-Power Loads , 2010, IEEE Transactions on Vehicular Technology.

[23]  Wei Qiao,et al.  An Interconnection and Damping Assignment Passivity-Based Controller for a DC–DC Boost Converter With a Constant Power Load , 2014 .

[24]  S. Sul,et al.  DC-link voltage stabilization for reduced dc-link capacitor inverter , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[25]  Ali Emadi,et al.  Discontinuous-Conduction Mode DC/DC Converters Feeding Constant-Power Loads , 2010, IEEE Transactions on Industrial Electronics.

[26]  Ali Emadi,et al.  An Analytical Investigation of DC/DC Power Electronic Converters With Constant Power Loads in Vehicular Power Systems , 2009, IEEE Transactions on Vehicular Technology.

[27]  E. Santi,et al.  Comprehensive review of stability criteria for DC distribution systems , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[28]  Ali Emadi,et al.  Active Damping in DC/DC Power Electronic Converters: A Novel Method to Overcome the Problems of Constant Power Loads , 2009, IEEE Transactions on Industrial Electronics.

[29]  Claudio Rivetta,et al.  Global behaviour analysis of a DC-DC boost power converter operating with constant power load , 2004, 2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512).

[30]  D. G. Lamar,et al.  A Unity Power Factor Correction Preregulator With Fast Dynamic Response Based on a Low-Cost Microcontroller , 2008, IEEE Transactions on Power Electronics.

[31]  Fred C. Lee,et al.  A method of defining the load impedance specification for a stable distributed power system , 1993 .

[32]  A.J. Forsyth,et al.  Comparative study of stabilizing controllers for brushless DC motor drive systems , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[33]  Junming Zhang,et al.  Stability Criterion for Cascaded System With Constant Power Load , 2013, IEEE Transactions on Power Electronics.

[34]  T. Kato,et al.  An oscillation suppression method of a DC power supply system with a constant power load and a LC filter , 2012, 2012 IEEE 13th Workshop on Control and Modeling for Power Electronics (COMPEL).

[35]  Scott D. Sudhoff,et al.  Admittance space stability analysis of power electronic systems , 2000, IEEE Trans. Aerosp. Electron. Syst..

[36]  Enrico Santi,et al.  Comprehensive Review of Stability Criteria for DC Power Distribution Systems , 2014, IEEE Transactions on Industry Applications.

[37]  Spiro P. Karatsinides.  Line-of-sight pointing accuracy improvements through analytic boresighting , 2000, IEEE Trans. Aerosp. Electron. Syst..

[38]  Scott D. Sudhoff,et al.  An Experimentally Validated Nonlinear Stabilizing Control for Power Electronics Based Power Systems , 1998 .

[39]  B. Nahid-Mobarakeh,et al.  Linear Stabilization of a DC Bus Supplying a Constant Power Load: A General Design Approach , 2010, IEEE Transactions on Power Electronics.

[40]  Alexis Kwasinski,et al.  Boundary control of buck converters with constant-power loads , 2009, INTELEC 2009 - 31st International Telecommunications Energy Conference.