Alberto Berizzi

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   This paper compares two different Optimal Power Flow (OPF) formulations that consider voltage security in power systems. The techniques are both based on multi-objective optimization methodologies, so that operating costs and losses can be minimized while maximizing the " distance " to voltage collapse. The techniques are described in detail and(More)
|This paper concentrates on studying the eeect of SVC and TCSC controllers on the Available Transfer Capability A TC. Standard voltage collapse techniques are used to determine the ATC of a test system, considering a variety of system limits. Then, based on second-order sensitivity analysis, optimal locations for these particular FACTS controllers are(More)
– The Hierarchical Voltage Control (HVC) has been adopted in some countries as a significant improvement of the traditional voltage control solutions. This paper deals with the Optimal Reactive Power Flow (ORPF) from a Multi-objective perspective. In particular, it studies the interactions between three objective functions (OFs): one is the " traditional "(More)
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