OO-Based STATCOM Installation for Power System Loading Margin Improvement

Abstract:

As electricity demands and power transactions continuously increase, it becomes vulnerable to voltage instability for power systems, generally incurred by over-utilized facilities or any contingency. The transmission system loading margin (LM) enhancement problem with Static Synchronous Compensator (STATCOM) installation can be formulated as a mixed discrete-continuous nonlinear optimization problem (MDCP); due to the complexity of the MDCP, the computing burden might be very heavy. In the paper, the proposed ordinal optimization (OO) based STATCOM installation method is applied to the MDCP to solve for good enough solutions rather than the best solution, so as to largely reduce the computation burden. In the method, the crude method is first used to solve the MDCP and, based on OO theory, the exact method is then used to determine the good enough solutions. Finally, the good enough solution, as uses the fewest STATCOM device units for installation and makes the power system able to provide the required LM, is recommended for network reinforcement.

• Periodical: Applied Mechanics and Materials (Volumes 284-287)
• Pages: 1087-1093
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.284-287.1087
• Online since: January 2013
• Authors: Ya Chin Chang, Rung Fang Chang
• Keywords: Crude Method, Good Enough Solution, Loading Margin, Ordinal Optimization Theory

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