Now showing items 21-30 of 30
Ready reserve power determination using artificial neural network
This paper presents an application of artificial neural network for determination of ready reserve power required under generator outage and increased load conditions in a power system. Gas turbines or hydro plants are ...
Improvement of power system transient stability by coordinated operation of fast valving and braking resistor
Fast valving and braking resistors, individually, are an effective means of improving the stability of a power system under large and sudden disturbances. The fast valving schemes, like other methods, are not always suitable ...
Fuzzy supervisory controller for improved voltage dynamics in power factor corrected converter
This paper investigates the performance of a Fuzzy Supervisory Controller (FSC) in control of power converters. An FSC module is added to a conventional narrow bandwidth voltage regulator in a Power Factor Corrected (PFC) ...
A novel DC bus voltage sensorless PFC rectifier with improved voltage dynamics
A novel DC bus voltage estimation algorithm with inherent cancellation of feedback voltage ripple is presented in this work. Design issues are discussed and simulation results are presented. Apart from reduction of output ...
A simple fast voltage controller for single-phase PFC converters
In this work a simple and robust voltage controller is proposed to improve voltage dynamics in the power factor corrected (PFC) converters. The proposed controller eliminates twice the line frequency ripples from the voltage ...
An expert system approach to unit commitment problem
This paper describes a hybrid expert system dynamic programming approach to the power system unit commitment problem. Here the scheduling output of the usual dynamic programming is enhanced by supplementing it with the ...
An Expert System Approach to the Unit Commitment Problem
An expert system plays a key role in the better conservation and management of electrical energy in a power station having a number of units that have to be committed for a given load. This paper presents a hybrid expert ...
Fuzzy decision making in multiobjective long-term scheduling of hydrothermal system
In the paper, a fuzzy decision making methodology is presented to decide the generation schedule of long-term hydrothermal problems with explicit recognition of statistical uncertainties in system production cost data, NOx ...
Optimal thermal generating unit commitment: a review
The purpose of economic thermal unit commitment scheduling is to minimize the cost of operation subject to attainment of a certain level of security and eliability.However, in recent years, owing to environmental ...