An application of fuzzy logic based control for power systems governing multiple Flexible Alternative Current Transmission System (FACTS) devices is proposed. Several relations have been derived to determine set points of FACTS devices using fuzzy reasoning in order to meet the requirements for power flows. The relations are based on so called coefficients of influence, which are online adapted...

-In this paper, multi-objective optimal placement (MOOP) of multi-type flexible AC transmission systems (FACTS) devices for Thailand power system is proposed. Four types of FACTS devices are used: thyristor-controlled series capacitor (TCSC), thyristor-controlled phase shifter (TCPS), unified power flow controller (UPFC), and static var compensator (SVC). The problem is decomposed into the opti...

Flexible AC transmission systems (FACTS) devices can control power flow in the transmission system to voltage source as it can inject an almost sinusoidal voltage of variable and controllable amplitude and phase angle, in series with a transmission line. Most of the injected voltage, which is in quadrature with the line current, provides the effect of inserting an inductive or capacitive reacta...

In this paper, a hybrid Tabu Search and Simulated Annealing (TS/SA) approach is proposed to find the optimal placement of multi-type FACTS devices to simultaneously minimise the total generator fuel cost and violation function. The problem is decomposed into the Multi-Objective Optimal Placement (MOOP) of multi-type FACTS devices subproblem that is searched by the hybrid TS/SA approach and the ...

Traditionally, electric system operators have dispatched generation to minimize total production costs, assuming a fixed transmission topology within the dispatch horizon. Implementation of smart-grid systems could allow operators to co-optimize transmission topology alongside generator dispatch; the technologies that would enable such co-optimization are still regulated as part of the monopoly...

Modern power system becomes more complex and difficult to control with the wide integration of renewable energy and flexible ac transmission systems (FACTS). In recent years many types of renewable source (Wind, solar,) and FACTS devices (SVC, STATCOM, TCSC, UPFC) integrated widely in the electricity market. Wind power industry has been developing rapidly, and high penetration of wind power int...