The Proportional Integral Derivative (PID) controller is the most adopted controllers for industrial plants, due to its simplicity and satisfactory performances for a wide range of processes. It should be noted that the accurate and efficient tuning of parameters such controllers is very important. On the other hand, industrial plants, such as power systems, usually have some features, such as ...

The power system stability has been considered as one of great concerns in the power system domain. Power industries are restructured to provide effective utilization of power to more users at lower prices and better power efficiency. Load demand has increased linearly with the increase in number of users. Since stability phenomena limits the transfer capability of the system, there is a need t...

The relationship between the MMPI-2 restructured clinical scales and the original clinical scales was evaluated using an outpatient clinical sample (N = 150). Similar patterns of correlations to those reported by Tellegen et al. in 2003, such as high correlations between the restructured scales and their original scale counterparts and lower intercorrelations among the restructured scales than ...

In today’s restructured environment, congestion management plays an essential role in power system operation. Different methods are presented and discussed in this respect for congestion management in short-term and long-term intervals. It is attempted in the present paper to investigate the impact mechanism of FACTS devices and demand response programs together with generation re-dispatch as s...

This paper represents a complete survey on Generation Companies’ (GenCos’) optimal bidding strategy problem in restructured power markets. In this regard after an introduction to competitive electricity markets, concept of optimal bidding strategy is presented. Considering large amount of works accomplished in this area a novel classification is implemented in order to categorize the existing d...

With the tendency of posterior probability taken into account, a state-restructuring method is proposed based on confusions between HMM states. In the method, HMM state is restructured by sharing Gaussian components with its related states and the re-estimation of the increased-parameters, i.e., the inter-state weights, is derived under the EM framework. Experiments are performed on speaker-ind...

This paper addresses the problems of power supply reliability in a market environment. The specific features of economic interrelations between the power supply organization and consumers in terms of reliability assurance are examined and the principles of providing power supply reliability are formulated. The economic mechanisms of coordinating the interests of power supply organization and co...

The paper presents an empirical model of the “make or buy” decision faced by independent power producers (IPPs) in restructured U.S. wholesale electricity markets. The model is applied to plant-level data that track the investment decisions of major IPPs from 1996 to 2000, yielding estimates of each firm’s investment cost and expected profit functions. The estimates are used to evaluate the eff...