DE Based Optimal Power Flow for Location of UPFC Considering Voltage Stability
نویسندگان
چکیده
Optimal Power Flow (OPF) has been widely used in power system operation and planning. This paper presents Differential Evolution (DE) method to solve optimal power flow in power system incorporating a powerful and versatile Flexible AC Transmission Systems (FACTS) device such as Unified Power Flow Controller (UPFC). Unlike other FACTS devices, UPFC has a great flexibility that can control the active power, reactive power and voltage simultaneously. In the solution process, DE, coupled with AC power flow, selects the best regulation to minimize the total generation fuel cost and keep the power flows within their security limits. The optimization process with DE is presented with case study examples using IEEE 30-bus test system to demonstrate its applicability. The results are presented to show the feasibility and potential of this new approach.
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