Incorporation of different FACTS devices in Transmission system for minimization of losses
نویسنده
چکیده
This paper presents an AC Transmission system power flow controlled by injecting a compensating voltage in series with the line and injecting reactive power in shunt with the bus. Static Synchronous Series Compensator (SSSC) and Static Synchronous Compensator (STATCOM) are utilized as a series and shunt compensation, respectively while Unified Power Flow Controller (UPFC) is considered as a shunt-series compensator.The prediction of dynamic voltage collapse at the buses is found by calculating voltage collapse prediction index (VCPI) for placement of shunt FACTS devices and Fast voltage stability index (FVSI) for placement of series FACTS devices. This paper covers, in depth, the modeling and simulation methods required for a thorough study of the steady-state operation of electrical power systems with these flexible AC Transmission Systems (FACTS) controllers. A thorough grounding on the theory and practice of positive sequence power flow is offered here. MATLAB® codes are utilized for the implementation of the three devices in the Newton-Raphson algorithm. Power flow control ranges are evaluated for standard 14-bus system. Results are reported and studies are presented to illustrate and compare the effectiveness of the STATCOM, SSSC and UPFC.
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