This paper proposes an automatic discrete slow voltage controller, which is motivated towards implementation in the western Oregon system in Pacific Northwest. This part of the system is far from generators and the main voltage control devices are capacitor banks, reactor banks and LTC transformers. The project pursues a model-based approach for selecting the discrete control actions for on-lin...

This paper investigates the role of Static Var Compensator (SVC) on stability of voltage in grid system due to the presence of harmonics.. Here the design of SVC is based on the combination of Thyristor switched capacitors (TSC’s) and Thyristor controlled reactor (TCR) . TSC’s are used for switching the capacitor banks on and off while the TCR continuously controls the reactive power by varying...

Most electrical distribution systems are incurring large losses as the loads are wide spread, inadequate reactive power compensation facilities and their improper control. A typical static VAR compensator consists of capacitor bank in binary sequential steps operated in conjunction with a thyristor controlled reactor of the smallest step size. This SVC facilitates stepless control of reactive p...

optimal sitting and sizing of shunt capacitor banks at the distribution networks for the purpose of power quality improvement is drawn much attention of electric power utilities in the last decades. determining the optimal number, location and sizing of capacitor using bee colony optimization algorithm (bco) is being presented in this paper. the bco algorithm is a new population based meta-heur...

Nowadays the research on the integration of DG's and Capacitor banks in radial distribution system is going on, to meet the increased electricity demand and to improve the technical aspects like power loss reduction, voltage profile improvement etc. , where the major concerns are finding the optimal sizing of DG's and Capacitor banks and their locations. This paper presents applicatio...

The use of fuseless capacitor banks requires subtle changes in the protection approach from the more traditional fused banks. This paper covers the aspects of protecting fuseless capacitor banks of various voltage classes. Comparison of fused versus fuseless capacitor bank protection is discussed, along with examples and insights from Minnesota Power’s experiences with fuseless capacitor banks.

The static var compensators SVC are FACTS devices in shunt connection which can be used for power system enhancement. The paper investigates a modern approach for SVC control using fuzzy logic based controller. The simulations and effects of shunt compensation on power system transmission stability are also presented. The SVC modeled in the paper is a TCR-FC type with two components: the thyris...

Reactive power optimization in distribution systems is investigated in this paper. The objective of this paper is to determine the proper setting values and placing of capacitor banks. A novel Fuzzy Iterative Learning Control (FILC) approach is proposed in this paper. The reactive power is controlled by shunt capacitor banks. The problem formulation considers two distinct objectives related to ...

Power factor correction is vital in present society. The two key benefits of power factor correction, which includes reduced power costs and higher system capacity. Implementation of Flexible AC Transmission Systems (FACTS) improves the power factor, power transfer capability and voltage stability. The shunt type of FACTS controller is used to either absorb or inject VARs into the system, there...