Optimum Reactive Power Dispatch for Alleviation of Voltage Deviations

Abraham Lomi, Dhadbanjan Thukaram

Abstract


This paper presents a non-linear optimization algorithm for alleviation of under-voltage and over-voltage conditions in the day-to-day operation of power networks. Voltage control for varying load and generation conditions can be achieved by coordinated control of switchable shunt VAR compensating (SVC) devices, on load transformer taps (OLTC) and generators excitation. The proposed algorithm for voltage control uses a non-linear least square minimization technique. Results obtained for 6-Bus Ward-Hale system and a modified IEEE 30-Bus system are presented for illustration purposes.


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References


Lomi A. Reactive Power Optimization for Voltage Stability Improvement. Science and Engineering Journal. Universidade Federal De Uberlandia, Brazil. 2000: 16-21.

Lomi A, Thukaram D. Selection of Static VAR Compensator Location and Size for System Voltage Stability Improvement. International Journal of Electric Power Systems and Research. Elsevier. 2000: 139-150.

Kirschen DS, Van Meeteren HP. MW/Voltage Control in a Linear Programming Based Optimal Power Flow. IEEE Trans. On PAS, 1988; 3(2): 481-489.

Lomi A. Power Flow Model Incorporating Generation Controls and Load Characteristic. Jurnal Sains dan Teknologi EMAS. Univ. Kristen Indonesia. 2004: 21-28.

Lomi A. Planning and Operation of Reactive Power Sources for Voltage Stability Improvement and Harmonics Minimization. Dr. Eng. Dissertation. AI. 2000.

Thukaram D, Kumar VSS, Khincha HP. State Estimation using LP Upper Bound Optimization. 16th National Power Systems Conference. Dec. 15th-17th, India. 2010: 347-352.

Lee KY, Park YM, Ortiz JL. Optimal Real and Reactive Power Dispatch. Electric Power Research. 1984; 7: 201-219.

Gupta M, Kumar R, Gupta RA. Neural network Based Indexing and Recognition of Power Quality Disturbances. TELKOMNIKA. 2011; 9(2): 227–236.

Harikrishna D, Srikanth NV. Dynamic Stability Enhancement of Power Systems using Neural-network Controlled Static-Compensator. TELKOMNIKA. 2012; 10(1): 9–16.




DOI: http://dx.doi.org/10.12928/telkomnika.v10i2.793

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