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This paper presents evolutionary computing technique for solving constrained reactive power control (CRPC) problem in the attempt to enhance voltage stability under contingencies, while minimizing transmission loss and maintaining voltage level at an acceptable level. In this study, evolutionary programming (EP) was chosen as the evolutionary computing (EC) technique for solving the CRPC; taking into...
Deregulation in power industry has made the reactive power ancillary service management a critical task to power system operators from both technical and economic perspectives. Reactive power management in power systems is a complex combinatorial optimization problem involving nonlinear functions with multiple local minima and nonlinear constraints. This paper proposes a practical market-based reactive...
Voltage stability in power system is influenced by reactive support at various locations. It is desirable to monitor the reactive power reserves as system conditions change. There is a need to find a relationship between the reactive power reserves and system security with respect to voltage stability margin and voltage violations. In this paper we have investigated how different approaches of generator...
Before the first connection to the French transmission grid, a power producer must perform stability analysis and verify if the generator meets the requirements imposed by the transmission system operator. These analysis concern both transient and small signal stability but the present paper focuses on small signal stability only. The robustness margins represent an interesting way to quantify the...
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