The loadability enhancement problem with loadability objective is solved in the presence of TCSC and SVC while satisfying system equality and in-equality constraints. It is necessary to solve the optimal power flow in the presence of series and shunt flexible AC transmission system controllers such as thyristor controlled series capacitor and static VAr compensators. The optimal location of the...

This work presents a methodology, based on the modeling of an electrical power system test created in PSCAD/EMTDC simulation environment. The purpose is to evaluate, at first, impacts that Thyristor Controlled Series Compensator (TCSC) and Static Var (SVC) cause transient angular stability generators against disturbances, evaluating rotor displacement synchronous under analysis. In second momen...

Generators typically regulate terminal voltage via automatic voltage regulator and exciter equipment. The desired high side (transmission side) voltage schedule is usually maintained by the power plant operator or by slow SCADA-type process control computers. Power system dynamic performance, however, can be improved by faster regulation of the transmission voltage. Contrasted to generators, st...

The excitation control of synchronous generator in a single machine to an infinite bus (SMIB) power system is very important to improve the stability modes of power system. In addition to the usual or conventional excitation control techniques and speed governors, other devices proved its effectiveness to enhance better system stability like power system stabilizers (PSS) and static VAR compens...

This paper provides an assessment of candidate voltage/reactive power control devices for distribution systems. The recent trend toward Distributed Energy Resources (DERs), and Distributed Generation (DG), in particular, is often based on the rationale to support voltage and compensate for reactive power closer to the end users. This situation calls for a systematic approach to assessing altern...

This paper investigates the ability of Immune Algorithm (IA) in designing a supplementary controller for Static Var Compensators (SVC) to damp the power system inter-area oscillation. For this the parameters of the supplementary controller are determined by IA using an eigenvalue-based objective function. The numerical results are presented on a 2-area 4-machine system to illustrate the feasibi...

In electric power systems, finding optimal location and setting of flexible AC transmission system (FACTS) devices represents a difficult optimisation problem. This is due to its discrete, multi-objective, multimodal and constrained nature. Finding near-global solutions in such a problem is very demanding. Brainstorm optimisation algorithm (BSOA) is a novel promising heuristic optimisation algo...

In the last ten years Sudan National Grid suffering from a steady increase in loads, with shortage of generation and congestion transmission substations lines. This caused many cases blackouts. As solution to this situation, Static Var Compensators (SVC) project was recommended improve voltage (NG) by providing adequate reactive power support at specified nine locations solve instability proble...

Flexible AC Transmission Systems (FACTs) play a vital role in minimizing the power losses and improving voltage profile transmission system. These increase real transfer capacity of However, optimal location sizing FACTs devices determines extent benefits provided by to Non-optimal solution terms may possibly lead under-compensation or over-compensation phenomena. Thus, robust optimization is p...