Loadability margin enhancement using co-ordinated aggregation based particle swarm optimization (CAPSO)

Abstract This paper describes an algorithm for rescheduling reactive power control variables so as to have an adequate loadability margin for current operating point. Co-ordinated aggregation based PSO (CAPSO) has been used as optimization technique. Two objective functions have been selected for load margin enhancement. One is minimization of total reactive power loss and other considers minimization of incremental reactive power loss. The developed algorithm has been implemented on 14-bus and 57-bus standard test systems. Results obtained have been compared with those obtained using Davidon–Fletcher–Powell’s (DFP) optimization technique. CAPSO performance is better over DFP method. It has been observed that incremental loss minimization formulation does not require additional voltage stability related constraints hence computational time required is less as compared to reactive power loss minimization. Reactive power loss minimization formulation is of significance when limited reactive power source is available.

[1]  J.G. Vlachogiannis,et al.  A Comparative Study on Particle Swarm Optimization for Optimal Steady-State Performance of Power Systems , 2006, IEEE Transactions on Power Systems.

[2]  S. C. Choube,et al.  Reactive Power Optimization Using Static Voltage Stability Index , 2001 .

[3]  S. C. Choube,et al.  Particle swarm optimization for determining shortest distance to voltage collapse , 2007 .

[4]  S. C. Choube,et al.  Emission constrained secure economic dispatch , 1997 .

[5]  B. J. Cory,et al.  Reactive reserve management , 1995 .

[6]  Robert A. Schlueter.  A voltage stability security assessment method , 1998 .

[7]  Thomas J. Overbye,et al.  Voltage security enhancement using energy based sensitivities , 1991 .

[8]  Venkataramana Ajjarapu,et al.  An optimal reactive power planning strategy against voltage collapse , 1994 .

[9]  Parimal Acharjee,et al.  Chaotic particle swarm optimization based robust load flow , 2010 .

[10]  Sae-Hyuk Kwon,et al.  Reactive reserve-based contingency constrained optimal power flow (RCCOPF) for enhancement of voltage stability margins , 2003 .

[11]  Yoshikazu Fukuyama,et al.  A particle swarm optimization for reactive power and voltage control considering voltage security assessment , 2000 .

[12]  D. P. Kothari,et al.  Corrective rescheduling for static voltage stability control , 2005 .

[13]  Robert J. Thomas,et al.  A posturing strategy against voltage instabilities in electric power systems , 1988 .

[14]  G. B. Jasmon,et al.  New contingency ranking technique incorporating a voltage stability criterion , 1993 .

[15]  K. Parthasarathy,et al.  Optimal reactive power dispatch algorithm for voltage stability improvement , 1996 .

[16]  Y. Malachi,et al.  A genetic algorithm for the corrective control of voltage and reactive power , 2006, IEEE Transactions on Power Systems.

[17]  Miroslav Begovic,et al.  Voltage Stability Protection and Control Using a Wide Area Network of Phasor Measurements , 2002, IEEE Power Engineering Review.

[18]  R. C. Desai,et al.  Modern power system analysis , 1982, Proceedings of the IEEE.

[19]  Shang He,et al.  An improved particle swarm optimizer for mechanical design optimization problems , 2004 .

[20]  Joong-Rin Shin,et al.  A particle swarm optimization for economic dispatch with nonsmooth cost functions , 2005, IEEE Transactions on Power Systems.

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

[22]  D. P. Kothari,et al.  Improved particle swarm optimization applied to reactive power reserve maximization , 2010 .

[23]  Gregor Verbic,et al.  On voltage collapse and apparent-power losses , 2006 .

[24]  Bhujanga B. Chakrabarti,et al.  Voltage stability constrained VAR planning: model simplification using statistical approximation , 2001 .

[25]  N.D. Hatziargyriou,et al.  Ant colony system-based algorithm for constrained load flow problem , 2005, IEEE Transactions on Power Systems.

[26]  Thierry Van Cutsem,et al.  Voltage Stability of Electric Power Systems , 1998 .

[27]  Bala Venkatesh,et al.  A new computational method for reactive power market clearing , 2009 .

[28]  S. C. Choube,et al.  APPLICATION OF PARTICLE SWARM OPTIMIZATION AND ITS VARIANT FOR OPTIMUM LOAD SHEDDING , 2009 .

[29]  Aleksandar I. Zečević,et al.  Enhancement of voltage stability by an optimal selection of load following units , 2001 .