Large-Scale PV Plant With a Robust Controller Considering Power Oscillation Damping

Transmission voltage-level photovoltaic (PV) plants are becoming reality in many developed and developing countries around the world. Studies suggest that large-scale PV plants could have either positive or negative influence on low-frequency oscillation (LFO) depending on their locations and sizes. Given the fact that these plants cannot be placed in ideal locations to minimize their impact on LFO, it is important to consider designing a damping controller for flawless integration. In this paper, a minimax linear quadratic Gaussian-based power oscillation damper (POD) for a large-scale PV plant is proposed for interarea oscillation damping. A benchmark power system prone to power system oscillations is used to demonstrate the damping performance of the designed controller considering feedback signal transmission delay. The performance of the designed controller is evaluated under different operating conditions as compared to the classical POD at PV plant. Simulation results demonstrate that the proposed controller for a PV plant provides sufficient damping to the interarea mode for a wide range of operating conditions.

[1]  IEEE Report,et al.  Excitation System Models for Power System Stability Studies , 1981, IEEE Transactions on Power Apparatus and Systems.

[2]  P. Kundur,et al.  Power system stability and control , 1994 .

[3]  T. Başar,et al.  Model Simplification and Optimal Control of Stochastic Singularly Perturbed Systems under Exponentiated Quadratic Cost , 1996 .

[4]  Vijay Vittal,et al.  Application of the structured singular value theory for robust stability and control analysis in multimachine power systems. I. Framework development , 1998 .

[5]  L. D. Philipp,et al.  An improved refinable rational approximation to the ideal time delay , 1999 .

[6]  K. M. Son,et al.  On the robust LQG control of TCSC for damping power system oscillations , 2000 .

[7]  F. Fernández-Bernal,et al.  Modelling of photovoltaic plants for power system dynamic studies , 2002 .

[8]  I. Kamwa,et al.  Control loops selection to damp inter-area oscillations of electrical networks , 2002 .

[9]  C.A. Canizares,et al.  Hopf bifurcations and critical mode damping of power systems for different static load models , 2004, IEEE Power Engineering Society General Meeting, 2004..

[10]  G.T. Heydt,et al.  Evaluation of time delay effects to wide-area power system stabilizer design , 2004, IEEE Transactions on Power Systems.

[11]  R. Grondin,et al.  IEEE PSS2B versus PSS4B: the limits of performance of modern power system stabilizers , 2005, IEEE Transactions on Power Systems.

[12]  Myung-Gon Yoon,et al.  Gain-Scheduling of Minimax Optimal State-Feedback Controllers for Uncertain LPV Systems , 2007, IEEE Transactions on Automatic Control.

[13]  D.S. Kirschen,et al.  Impact on the Power System of a Large Penetration of Photovoltaic Generation , 2007, 2007 IEEE Power Engineering Society General Meeting.

[14]  Imad M. Jaimoukha,et al.  A Study on LQG/LTR Control for Damping Inter-Area Oscillations in Power Systems , 2007, IEEE Transactions on Control Systems Technology.

[15]  Boon-Teck Ooi,et al.  Power system damping from real and reactive power modulations of voltage-source-converter station , 2008 .

[16]  J. Bebic,et al.  Transmission System Performance Analysis for High-Penetration Photovoltaics , 2008 .

[17]  A. F. Okou,et al.  Power system robust stability analysis using structured singular value theory and model reduction method , 2009, 2009 IEEE Power & Energy Society General Meeting.

[18]  I. C. Decker,et al.  Wide-Area Measurements-Based Two-Level Control Design Considering Signal Transmission Delay , 2009, IEEE Transactions on Power Systems.

[19]  Marcelo Gradella Villalva,et al.  Comprehensive Approach to Modeling and Simulation of Photovoltaic Arrays , 2009, IEEE Transactions on Power Electronics.

[20]  Johan H.R. Enslin,et al.  Dynamic reactive power and energy storage for integrating intermittent renewable energy , 2010, IEEE PES General Meeting.

[21]  A. Dysko,et al.  Enhanced Power System Stability by Coordinated PSS Design , 2010, IEEE Transactions on Power Systems.

[22]  Hemanshu R Pota,et al.  Simultaneous STATCOM and Pitch Angle Control for Improved LVRT Capability of Fixed-Speed Wind Turbines , 2010, IEEE Transactions on Sustainable Energy.

[23]  Nadarajah Mithulananthan,et al.  Impact of large-scale PV penetration on power system oscillatory stability , 2010, IEEE PES General Meeting.

[24]  N. Mithulananthan,et al.  Contribution of PV systems with ultra capacitor energy storage on inter-area oscillation , 2011, 2011 IEEE Power and Energy Society General Meeting.

[25]  J. Wen,et al.  Delay-Dependent Stability Analysis of the Power System With a Wide-Area Damping Controller Embedded , 2011, IEEE Transactions on Power Systems.

[26]  Abdulaziz Almutairi,et al.  Enhancement of power system stability using wide area measurement system based damping controller , 2011 .

[27]  I. Petersen,et al.  Robust Control Design Using H-? Methods , 2012 .

[28]  Ramesh C. Bansal,et al.  Damping performance analysis of battery energy storage system, ultracapacitor and shunt capacitor with large-scale photovoltaic plants , 2012 .

[29]  Wenjuan Du,et al.  Power system small‐signal stability as affected by grid‐connected photovoltaic generation , 2012 .